/* ========================================
   (주)오창이엔씨 - 블루 컨셉 스타일시트
   전기·에너지 기업의 정체성을 담은 풀 블루 테마
   ======================================== */

/* ========================================
   1. CSS Variables (Blue Theme)
   ======================================== */
:root {
    /* Primary Blue Colors */
    --primary-blue: #0052cc;
    --primary-blue-light: #0066ff;
    --primary-blue-dark: #003d99;
    
    /* Secondary Blue Colors */
    --secondary-blue: #0080ff;
    --secondary-blue-light: #3399ff;
    --secondary-blue-dark: #0066cc;
    
    /* Accent Blue Colors */
    --accent-blue: #00b8ff;
    --accent-blue-light: #33ccff;
    --accent-cyan: #00d9ff;
    
    /* Dark Blue Colors */
    --dark-blue: #001a33;
    --dark-blue-light: #002b4d;
    --navy: #001f3f;
    
    /* Light Blue Colors */
    --light-blue: #e6f2ff;
    --light-blue-bg: #f0f7ff;
    --sky-blue: #d4e9ff;
    
    /* Neutral Colors with Blue Tint */
    --white: #ffffff;
    --text-primary: #001a33;
    --text-secondary: #003d66;
    --text-light: #0066a3;
    --border-color: #b3d9ff;
    
    /* Gradient Colors */
    --gradient-primary: linear-gradient(135deg, #0052cc 0%, #0080ff 100%);
    --gradient-secondary: linear-gradient(135deg, #0066ff 0%, #00b8ff 100%);
    --gradient-accent: linear-gradient(135deg, #003d99 0%, #0052cc 50%, #0080ff 100%);
    --gradient-overlay: linear-gradient(135deg, rgba(0, 82, 204, 0.9) 0%, rgba(0, 128, 255, 0.85) 100%);
    
    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 82, 204, 0.1);
    --shadow-md: 0 4px 16px rgba(0, 82, 204, 0.15);
    --shadow-lg: 0 8px 32px rgba(0, 82, 204, 0.2);
    --shadow-xl: 0 12px 48px rgba(0, 82, 204, 0.25);
    
    /* Typography */
    --font-primary: 'Noto Sans KR', sans-serif;
    --font-secondary: 'Montserrat', sans-serif;
    
    /* Spacing */
    --section-padding: 100px;
    --container-width: 1200px;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* ========================================
   2. Reset & Base Styles
   ======================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px; /* Base font size for desktop */
}

@media (max-width: 992px) {
    html {
        font-size: 15px; /* Tablet */
    }
}

@media (max-width: 576px) {
    html {
        font-size: 14px; /* Mobile */
    }
}

body {
    font-family: var(--font-primary);
    color: var(--text-primary);
    background-color: var(--white);
    line-height: 1.7;
    overflow-x: hidden;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition-normal);
}

ul {
    list-style: none;
}

button {
    border: none;
    background: none;
    cursor: pointer;
    font-family: inherit;
}

/* ========================================
   3. Container & Layout
   ======================================== */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 20px;
}

section {
    padding: var(--section-padding) 0;
    position: relative;
}

/* ========================================
   4. Navigation
   ======================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: transparent;
    z-index: 1000;
    transition: var(--transition-normal);
}

.navbar.scrolled {
    background: rgba(0, 26, 51, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-md);
}

.nav-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
    transition: var(--transition-normal);
}

.navbar.scrolled .nav-wrapper {
    padding: 15px 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 15px;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--white);
    font-family: var(--font-secondary);
    text-decoration: none;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--white);
    letter-spacing: -0.5px;
}

.logo i {
    font-size: 1.8rem;
    color: var(--accent-cyan);
    animation: pulse 2s ease-in-out infinite;
}

.logo-image {
    height: 45px;
    width: 45px;
    object-fit: contain;
    transition: var(--transition-normal);
}

.logo:hover .logo-image {
    transform: scale(1.1) rotate(5deg);
}

.logo:hover .logo-text {
    color: var(--accent-cyan);
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.1);
    }
}

.nav-menu {
    display: flex;
    gap: 40px;
    align-items: center;
}

.nav-link {
    color: var(--white);
    font-weight: 500;
    font-size: 1rem;
    position: relative;
    padding: 8px 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-secondary);
    transition: var(--transition-normal);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--white);
    border-radius: 3px;
    transition: var(--transition-normal);
}

/* ========================================
   5. Hero Section
   ======================================== */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    position: relative;
    background: var(--gradient-accent);
    overflow: hidden;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 50%, rgba(0, 184, 255, 0.2) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(51, 153, 255, 0.2) 0%, transparent 50%);
    z-index: 1;
}

.hero-particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(2px 2px at 20% 30%, rgba(255, 255, 255, 0.3), transparent),
        radial-gradient(2px 2px at 60% 70%, rgba(255, 255, 255, 0.3), transparent),
        radial-gradient(1px 1px at 50% 50%, rgba(255, 255, 255, 0.3), transparent),
        radial-gradient(1px 1px at 80% 10%, rgba(255, 255, 255, 0.3), transparent);
    background-size: 200px 200px, 250px 250px, 300px 300px, 350px 350px;
    background-position: 0 0, 40px 60px, 130px 270px, 70px 100px;
    animation: particles 20s linear infinite;
    z-index: 1;
}

@keyframes particles {
    0% {
        background-position: 0 0, 40px 60px, 130px 270px, 70px 100px;
    }
    100% {
        background-position: 200px 200px, 240px 260px, 330px 470px, 270px 300px;
    }
}

.hero .container {
    z-index: 2;
}

.hero-content {
    text-align: center;
    color: var(--white);
    margin-bottom: 60px;
}

.hero-title {
    font-size: 4rem; /* Desktop: 64px */
    font-weight: 900;
    margin-bottom: 30px;
    line-height: 1.3;
    font-family: var(--font-secondary);
}

.title-main {
    display: block;
    font-size: 3rem; /* Desktop: 48px */
    font-weight: 600;
    opacity: 0.95;
    line-height: 1.4;
}

.title-highlight {
    display: block;
    background: linear-gradient(90deg, #ffffff 0%, #00d9ff 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: glow 3s ease-in-out infinite;
}

@keyframes glow {
    0%, 100% {
        filter: brightness(1);
    }
    50% {
        filter: brightness(1.3);
    }
}

.hero-subtitle {
    font-size: 1.5rem; /* Desktop: 24px */
    margin-bottom: 40px;
    opacity: 0.9;
    font-weight: 300;
    letter-spacing: 1px;
    line-height: 1.8;
}

.hero-subtitle .highlight-text {
    font-weight: 700;
    font-size: 1.7rem; /* Desktop: 27.2px */
    color: var(--accent-cyan);
    text-shadow: 
        0 0 10px rgba(0, 217, 255, 0.5),
        0 0 20px rgba(0, 217, 255, 0.3),
        0 0 30px rgba(0, 217, 255, 0.2);
    letter-spacing: 2px;
    display: inline-block;
    animation: highlightPulse 3s ease-in-out infinite;
    padding: 5px 15px;
    background: linear-gradient(135deg, rgba(0, 217, 255, 0.1) 0%, rgba(0, 128, 255, 0.1) 100%);
    border-radius: 8px;
    border: 2px solid rgba(0, 217, 255, 0.3);
}

@keyframes highlightPulse {
    0%, 100% {
        transform: scale(1);
        border-color: rgba(0, 217, 255, 0.3);
    }
    50% {
        transform: scale(1.05);
        border-color: rgba(0, 217, 255, 0.6);
    }
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 16px 36px;
    font-size: 1.1rem;
    font-weight: 600;
    border-radius: 50px;
    transition: all var(--transition-normal);
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

.btn-primary {
    background: var(--white);
    color: var(--primary-blue);
    box-shadow: 0 8px 24px rgba(255, 255, 255, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 32px rgba(255, 255, 255, 0.4);
}

.btn-outline {
    background: transparent;
    color: var(--white);
    border: 2px solid var(--white);
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-3px);
}

/* Stats Cards */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    margin-top: 80px;
}

.stat-card {
    background: rgba(255, 255, 255, 0.95);
    padding: 30px;
    border-radius: 20px;
    text-align: center;
    box-shadow: var(--shadow-lg);
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--gradient-secondary);
}

.stat-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
}

.stat-icon {
    font-size: 2.5rem;
    color: var(--primary-blue);
    margin-bottom: 20px;
}

.stat-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.stat-number-wrapper {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 5px;
}

.stat-number {
    font-size: 3.5rem; /* Desktop: 56px */
    font-weight: 900;
    color: var(--primary-blue);
    font-family: var(--font-secondary);
    line-height: 1.1;
}

.stat-suffix {
    font-size: 1.8rem; /* Desktop: 28.8px */
    font-weight: 700;
    color: var(--secondary-blue);
    line-height: 1.1;
}

.stat-label {
    font-size: 0.95rem; /* Desktop: 15.2px */
    color: var(--text-secondary);
    font-weight: 600;
    margin-top: 5px;
    text-align: center;
    line-height: 1.4;
}

.hero-scroll {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
}

.hero-scroll a {
    display: block;
    color: var(--white);
    font-size: 2rem;
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(-10px);
    }
    60% {
        transform: translateY(-5px);
    }
}

/* ========================================
   6. Section Headers
   ======================================== */
.section-header {
    text-align: center;
    margin-bottom: 80px;
}

.section-subtitle {
    display: inline-block;
    padding: 8px 24px;
    background: var(--light-blue);
    color: var(--primary-blue);
    border-radius: 50px;
    font-size: 0.9rem; /* Desktop: 14.4px */
    font-weight: 600;
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 20px;
}

.section-title {
    font-size: 3rem; /* Desktop: 48px */
    font-weight: 900;
    color: var(--text-primary);
    margin-bottom: 20px;
    font-family: var(--font-secondary);
    line-height: 1.3;
}

.section-divider {
    width: 80px;
    height: 4px;
    background: var(--gradient-secondary);
    margin: 0 auto 30px;
    border-radius: 2px;
}

.section-description {
    font-size: 1.2rem; /* Desktop: 19.2px */
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto;
    line-height: 1.8;
}

/* ========================================
   7. About Section
   ======================================== */
.about {
    background: var(--white);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.about-image-wrapper {
    position: relative;
}

.image-placeholder {
    background: var(--gradient-primary);
    border-radius: 30px;
    padding: 80px 40px;
    text-align: center;
    color: var(--white);
    box-shadow: var(--shadow-lg);
    position: relative;
    overflow: hidden;
}

.image-placeholder::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 10%, transparent 10%);
    background-size: 30px 30px;
    animation: moveBackground 20s linear infinite;
}

@keyframes moveBackground {
    0% {
        transform: translate(0, 0);
    }
    100% {
        transform: translate(30px, 30px);
    }
}

.image-placeholder i {
    font-size: 5rem;
    margin-bottom: 20px;
    position: relative;
    z-index: 1;
}

.image-placeholder p {
    font-size: 1.5rem;
    font-weight: 700;
    position: relative;
    z-index: 1;
}

.about-badge {
    position: absolute;
    top: 30px;
    right: 30px;
    background: var(--white);
    color: var(--primary-blue);
    padding: 15px 30px;
    border-radius: 50px;
    font-weight: 700;
    font-size: 1.1rem;
    box-shadow: var(--shadow-md);
    border: 3px solid var(--accent-cyan);
}

.about-content {
    padding: 20px 0;
}

.about-title {
    font-size: 2.2rem; /* Desktop: 35.2px */
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 30px;
    line-height: 1.4;
}

.text-highlight {
    color: var(--primary-blue);
    position: relative;
}

.text-highlight::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 8px;
    background: var(--accent-cyan);
    opacity: 0.3;
    z-index: -1;
}

.about-text {
    font-size: 1.1rem; /* Desktop: 17.6px */
    color: var(--text-secondary);
    margin-bottom: 20px;
    line-height: 1.9;
}

.about-signature {
    margin: 40px 0;
    padding: 30px 0;
    border-top: 2px solid var(--border-color);
    border-bottom: 2px solid var(--border-color);
}

.signature-line {
    width: 150px;
    height: 2px;
    background: var(--gradient-secondary);
    margin-bottom: 15px;
}

.signature-name {
    font-size: 1.2rem;
    color: var(--text-primary);
    font-weight: 600;
}

.signature-name strong {
    color: var(--primary-blue);
    font-size: 1.4rem;
}

/* Philosophy Section (Left) */
.philosophy-section {
    padding: 20px;
}

.philosophy-card-main {
    background: var(--gradient-primary);
    padding: 50px 40px;
    border-radius: 25px;
    text-align: center;
    margin-bottom: 30px;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.philosophy-card-main::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
    animation: rotate 20s linear infinite;
}

.philosophy-icon-main {
    font-size: 2.5rem;
    color: var(--white);
    margin-bottom: 15px;
    position: relative;
    z-index: 1;
}

.philosophy-title-main {
    font-size: 1.3rem;
    color: var(--white);
    margin-bottom: 25px;
    font-weight: 600;
    letter-spacing: 2px;
    position: relative;
    z-index: 1;
}

.philosophy-text-main {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--white);
    line-height: 1.7;
    position: relative;
    z-index: 1;
}

.philosophy-decoration-main {
    width: 80px;
    height: 3px;
    background: var(--white);
    margin: 25px auto 0;
    border-radius: 2px;
    position: relative;
    z-index: 1;
}

.goals-mini {
    background: var(--white);
    padding: 30px;
    border-radius: 20px;
    box-shadow: var(--shadow-md);
    border: 3px solid var(--primary-blue);
}

.goals-subtitle {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--primary-blue);
    margin-bottom: 25px;
    text-align: center;
}

.goal-mini-item {
    display: flex;
    align-items: flex-start;
    gap: 15px;
    padding: 20px;
    background: var(--light-blue-bg);
    border-radius: 15px;
    margin-bottom: 15px;
    transition: var(--transition-normal);
    border-left: 4px solid var(--primary-blue);
}

.goal-mini-item:hover {
    transform: translateX(10px);
    box-shadow: var(--shadow-md);
    background: var(--primary-blue);
    color: var(--white);
}

.goal-mini-icon {
    font-size: 1.8rem;
    color: var(--primary-blue);
    flex-shrink: 0;
}

.goal-mini-item:hover .goal-mini-icon {
    color: var(--white);
}

.goal-mini-content strong {
    display: block;
    font-size: 1.1rem;
    margin-bottom: 5px;
    color: var(--text-primary);
}

.goal-mini-item:hover .goal-mini-content strong {
    color: var(--white);
}

.goal-mini-content p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

.goal-mini-item:hover .goal-mini-content p {
    color: var(--white);
    opacity: 0.9;
}

/* Company Section (Right) */
.company-section {
    padding: 20px;
}

.company-badge-main {
    display: flex;
    align-items: center;
    gap: 20px;
    background: var(--gradient-primary);
    padding: 25px 30px;
    border-radius: 20px;
    margin-bottom: 30px;
    box-shadow: var(--shadow-lg);
}

.badge-icon {
    font-size: 3rem;
    color: var(--white);
}

.badge-text {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.badge-label {
    font-size: 1rem;
    color: var(--white);
    opacity: 0.9;
    font-weight: 500;
}

.badge-company {
    font-size: 1.5rem;
    color: var(--white);
    font-weight: 700;
}

.company-title {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 25px;
    line-height: 1.5;
}

.company-text {
    font-size: 1.05rem;
    color: var(--text-secondary);
    margin-bottom: 20px;
    line-height: 1.9;
}

.company-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 15px;
    margin: 35px 0;
}

.company-stat-item {
    text-align: center;
    padding: 20px;
    background: var(--light-blue-bg);
    border-radius: 15px;
    border: 2px solid var(--primary-blue);
    transition: var(--transition-normal);
}

.company-stat-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
    background: var(--primary-blue);
}

.stat-value {
    font-size: 1.8rem;
    font-weight: 900;
    color: var(--primary-blue);
    font-family: var(--font-secondary);
    margin-bottom: 8px;
}

.company-stat-item:hover .stat-value {
    color: var(--white);
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-weight: 600;
}

.company-stat-item:hover .stat-label {
    color: var(--white);
}

.about-features {
    display: flex;
    gap: 15px;
    margin-top: 40px;
    flex-wrap: nowrap;
    justify-content: center;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 20px;
    background: var(--light-blue-bg);
    border-radius: 50px;
    border: 2px solid var(--primary-blue);
    transition: var(--transition-normal);
    flex: 0 1 auto;
    white-space: nowrap;
    justify-content: center;
}

.feature-item:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
    background: var(--primary-blue);
    color: var(--white);
}

.feature-item i {
    font-size: 1.5rem;
    color: var(--primary-blue);
}

.feature-item:hover i {
    color: var(--white);
}

/* ========================================
   8. Services Section
   ======================================== */
.services {
    background: var(--light-blue-bg);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
}

.service-card {
    background: var(--white);
    padding: 50px 40px;
    border-radius: 30px;
    box-shadow: var(--shadow-md);
    position: relative;
    overflow: hidden;
    transition: var(--transition-normal);
    border: 3px solid transparent;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 6px;
    background: var(--gradient-secondary);
    transform: scaleX(0);
    transform-origin: left;
    transition: var(--transition-slow);
}

.service-card:hover::before {
    transform: scaleX(1);
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-blue);
}

.service-icon {
    width: 80px;
    height: 80px;
    background: var(--gradient-primary);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 30px;
    transition: var(--transition-normal);
}

.service-card:hover .service-icon {
    transform: scale(1.1) rotate(5deg);
}

.service-icon i {
    font-size: 2.5rem;
    color: var(--white);
}

.service-title {
    font-size: 1.8rem; /* Desktop: 28.8px */
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 20px;
    line-height: 1.4;
}

.service-description {
    font-size: 1.05rem; /* Desktop: 16.8px */
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 25px;
}

.service-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.service-list li {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1rem;
    color: var(--text-secondary);
    padding-left: 10px;
}

.service-list i {
    color: var(--primary-blue);
    font-size: 0.8rem;
}

.service-number {
    position: absolute;
    bottom: 20px;
    right: 20px;
    font-size: 6rem;
    font-weight: 900;
    color: var(--light-blue);
    font-family: var(--font-secondary);
    line-height: 1;
    opacity: 0.3;
}

/* ========================================
   9. Values Section
   ======================================== */
.values {
    background: var(--white);
}

.values-content {
    max-width: 1000px;
    margin: 0 auto;
}

.philosophy-card {
    background: var(--gradient-primary);
    padding: 60px;
    border-radius: 30px;
    text-align: center;
    margin-bottom: 60px;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.philosophy-card::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
    animation: rotate 20s linear infinite;
}

@keyframes rotate {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}

.philosophy-icon {
    font-size: 3rem;
    color: var(--white);
    margin-bottom: 20px;
    position: relative;
    z-index: 1;
}

.philosophy-title {
    font-size: 1.5rem;
    color: var(--white);
    margin-bottom: 30px;
    font-weight: 600;
    letter-spacing: 3px;
    position: relative;
    z-index: 1;
}

.philosophy-text {
    font-size: 2rem;
    font-weight: 700;
    color: var(--white);
    line-height: 1.7;
    position: relative;
    z-index: 1;
}

.philosophy-decoration {
    width: 100px;
    height: 4px;
    background: var(--white);
    margin: 30px auto 0;
    border-radius: 2px;
    position: relative;
    z-index: 1;
}

.goals-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.goal-card {
    background: var(--white);
    padding: 40px 30px;
    border-radius: 20px;
    text-align: center;
    box-shadow: var(--shadow-md);
    position: relative;
    overflow: hidden;
    transition: var(--transition-normal);
    border: 3px solid var(--primary-blue);
}

.goal-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-primary);
    opacity: 0;
    transition: var(--transition-normal);
    z-index: 0;
}

.goal-card:hover::before {
    opacity: 1;
}

.goal-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
}

.goal-icon {
    font-size: 3rem;
    color: var(--primary-blue);
    margin-bottom: 20px;
    position: relative;
    z-index: 1;
    transition: var(--transition-normal);
}

.goal-card:hover .goal-icon {
    color: var(--white);
    transform: scale(1.2);
}

.goal-content {
    position: relative;
    z-index: 1;
}

.goal-title {
    font-size: 1.2rem;
    color: var(--text-primary);
    margin-bottom: 20px;
    font-weight: 600;
    transition: var(--transition-normal);
}

.goal-card:hover .goal-title {
    color: var(--white);
}

.goal-number {
    font-size: 4rem;
    font-weight: 900;
    color: var(--primary-blue);
    font-family: var(--font-secondary);
    margin-bottom: 15px;
    transition: var(--transition-normal);
}

.goal-card:hover .goal-number {
    color: var(--white);
}

.goal-number span {
    font-size: 2.5rem;
}

.goal-description {
    font-size: 1rem;
    color: var(--text-secondary);
    transition: var(--transition-normal);
}

.goal-card:hover .goal-description {
    color: var(--white);
}

.goal-badge {
    position: absolute;
    top: 15px;
    right: 15px;
    background: var(--light-blue);
    color: var(--primary-blue);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 700;
    z-index: 1;
    transition: var(--transition-normal);
}

.goal-card:hover .goal-badge {
    background: var(--white);
    color: var(--primary-blue);
}

/* ========================================
   10. Certifications Section
   ======================================== */
.certifications {
    background: var(--white);
    position: relative;
    overflow: hidden;
    padding: 100px 0;
}

.certifications::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 30% 50%, rgba(0, 82, 204, 0.03) 0%, transparent 50%),
                radial-gradient(circle at 70% 50%, rgba(0, 217, 255, 0.03) 0%, transparent 50%);
    pointer-events: none;
}

.cert-grid-6 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 60px;
    position: relative;
    z-index: 1;
}

.cert-card {
    background: var(--white);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 82, 204, 0.08);
    transition: var(--transition-normal);
    border: 1px solid rgba(0, 82, 204, 0.1);
    position: relative;
}

.cert-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 40px rgba(0, 82, 204, 0.15);
    border-color: var(--primary-blue);
}

.cert-badge {
    position: absolute;
    top: 15px;
    left: 15px;
    background: var(--gradient-primary);
    color: var(--white);
    padding: 6px 16px;
    border-radius: 25px;
    font-size: 0.8rem;
    font-weight: 700;
    z-index: 2;
    box-shadow: 0 4px 12px rgba(0, 82, 204, 0.3);
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.cert-badge.iso {
    background: var(--gradient-accent);
}

.cert-image {
    width: 100%;
    height: 280px;
    overflow: hidden;
    position: relative;
    background: #f8f9fa;
    border-bottom: 1px solid rgba(0, 82, 204, 0.1);
}

.cert-image img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    object-position: center;
    padding: 10px;
    transition: var(--transition-slow);
}

.cert-card:hover .cert-image img {
    transform: scale(1.03);
}

.cert-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 82, 204, 0.92);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition-normal);
    backdrop-filter: blur(5px);
}

.cert-card:hover .cert-overlay {
    opacity: 1;
}

.cert-overlay i {
    font-size: 3rem;
    color: var(--white);
    transform: scale(0.5) rotate(-10deg);
    transition: var(--transition-normal);
}

.cert-card:hover .cert-overlay i {
    transform: scale(1) rotate(0deg);
}

.cert-info {
    padding: 20px 15px;
    text-align: center;
    background: linear-gradient(to bottom, var(--white) 0%, var(--light-blue-bg) 100%);
}

.cert-info h4 {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
    line-height: 1.3;
}

.cert-info p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin: 0;
    line-height: 1.4;
}

/* Certificate Modal */
.cert-card {
    cursor: pointer;
}

.cert-card:hover {
    cursor: pointer;
}

.cert-modal {
    display: none;
    position: fixed;
    z-index: 10000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 26, 51, 0.95);
    overflow: auto;
    animation: fadeIn 0.3s ease-in-out;
}

.cert-modal.active {
    display: flex;
    align-items: center;
    justify-content: center;
}

.cert-modal-content {
    position: relative;
    background: var(--white);
    margin: 20px;
    padding: 0;
    border-radius: 20px;
    max-width: 90%;
    max-height: 90vh;
    box-shadow: 0 20px 60px rgba(0, 82, 204, 0.5);
    animation: zoomIn 0.3s ease-in-out;
    overflow: hidden;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes zoomIn {
    from {
        transform: scale(0.8);
        opacity: 0;
    }
    to {
        transform: scale(1);
        opacity: 1;
    }
}

.cert-modal-close {
    position: absolute;
    top: 15px;
    right: 25px;
    color: var(--white);
    font-size: 40px;
    font-weight: bold;
    cursor: pointer;
    z-index: 10001;
    background: var(--primary-blue);
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
    transition: var(--transition-fast);
    box-shadow: 0 4px 15px rgba(0, 82, 204, 0.4);
}

.cert-modal-close:hover {
    background: var(--accent-cyan);
    transform: rotate(90deg);
    box-shadow: 0 6px 20px rgba(0, 217, 255, 0.6);
}

.cert-modal-body {
    padding: 40px;
    max-height: 85vh;
    overflow-y: auto;
}

/* Certificate Detail Header */
.cert-detail-header {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 40px;
    padding-bottom: 20px;
    border-bottom: 3px solid var(--primary-blue);
}

.cert-detail-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--secondary-blue) 100%);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    box-shadow: 0 8px 20px rgba(0, 82, 204, 0.3);
}

.cert-detail-icon i {
    font-size: 2.5rem;
    color: var(--white);
}

.cert-detail-title {
    flex: 1;
}

.cert-detail-category {
    display: inline-block;
    background: var(--accent-cyan);
    color: var(--white);
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 10px;
}

.cert-detail-title h2 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--dark-blue);
    margin: 0;
}

/* Certificate Detail Section */
.cert-detail-section {
    margin-bottom: 35px;
}

.cert-detail-section h3 {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--primary-blue);
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.cert-detail-section h3 i {
    font-size: 1.2rem;
}

.cert-detail-description {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--text-primary);
    background: var(--light-blue-bg);
    padding: 20px;
    border-radius: 12px;
    border-left: 4px solid var(--primary-blue);
}

/* Benefits Grid */
.cert-benefits-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.cert-benefit-card {
    background: var(--white);
    border: 2px solid var(--primary-blue);
    border-radius: 16px;
    padding: 25px;
    text-align: center;
    transition: var(--transition-normal);
    box-shadow: 0 4px 15px rgba(0, 82, 204, 0.1);
}

.cert-benefit-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 30px rgba(0, 82, 204, 0.2);
    border-color: var(--accent-cyan);
}

.cert-benefit-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--light-blue-bg) 0%, var(--white) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 15px;
    border: 2px solid var(--primary-blue);
}

.cert-benefit-icon i {
    font-size: 1.6rem;
    color: var(--primary-blue);
}

.cert-benefit-card h4 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--dark-blue);
    margin: 0 0 12px 0;
}

.cert-benefit-card p {
    font-size: 0.95rem;
    line-height: 1.6;
    color: var(--text-secondary);
    margin: 0;
}

/* Impact Section */
.cert-impact {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--secondary-blue) 100%);
    padding: 30px;
    border-radius: 16px;
    box-shadow: 0 8px 30px rgba(0, 82, 204, 0.3);
}

.cert-impact h3 {
    color: var(--white);
}

.cert-impact-text {
    font-size: 1.15rem;
    line-height: 1.8;
    color: var(--white);
    margin: 0;
    font-weight: 500;
}

/* Mobile responsiveness for modal */
@media (max-width: 768px) {
    .cert-modal-content {
        max-width: 95%;
        margin: 10px;
    }
    
    .cert-modal-close {
        width: 40px;
        height: 40px;
        font-size: 30px;
        top: 10px;
        right: 10px;
    }
    
    .cert-modal-body {
        padding: 20px;
    }
    
    .cert-detail-header {
        flex-direction: column;
        text-align: center;
    }
    
    .cert-detail-icon {
        width: 70px;
        height: 70px;
    }
    
    .cert-detail-icon i {
        font-size: 2rem;
    }
    
    .cert-detail-title h2 {
        font-size: 1.5rem;
    }
    
    .cert-detail-section h3 {
        font-size: 1.2rem;
    }
    
    .cert-benefits-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .cert-detail-description {
        font-size: 1rem;
        padding: 15px;
    }
    
    .cert-impact-text {
        font-size: 1rem;
    }
}

/* ========================================
   10.4. Company Vision Section
   ======================================== */
.vision {
    background: linear-gradient(135deg, #e6f2ff 0%, #f0f7ff 50%, #d4e9ff 100%);
    position: relative;
    overflow: hidden;
    padding: 100px 0;
}

.vision::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at 30% 50%, rgba(0, 82, 204, 0.06) 0%, transparent 50%),
                radial-gradient(circle at 70% 50%, rgba(0, 150, 255, 0.04) 0%, transparent 50%);
    animation: moveBackground 20s ease-in-out infinite;
    pointer-events: none;
    z-index: 0;
}

.vision::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(2px 2px at 20% 30%, rgba(0, 82, 204, 0.12), transparent),
        radial-gradient(2px 2px at 60% 70%, rgba(0, 102, 255, 0.1), transparent),
        radial-gradient(1px 1px at 50% 50%, rgba(0, 82, 204, 0.08), transparent),
        radial-gradient(1px 1px at 80% 10%, rgba(0, 150, 255, 0.12), transparent),
        radial-gradient(2px 2px at 90% 60%, rgba(0, 102, 255, 0.1), transparent);
    background-size: 200px 200px, 180px 180px, 150px 150px, 220px 220px, 190px 190px;
    background-position: 0 0, 40px 60px, 130px 270px, 70px 100px, 150px 50px;
    animation: particleFloat 15s linear infinite;
    pointer-events: none;
    z-index: 0;
    opacity: 0.3;
}

@keyframes moveBackground {
    0%, 100% {
        transform: translate(0, 0) rotate(0deg);
    }
    25% {
        transform: translate(5%, 5%) rotate(3deg);
    }
    50% {
        transform: translate(-3%, 8%) rotate(-2deg);
    }
    75% {
        transform: translate(7%, -3%) rotate(1deg);
    }
}

@keyframes particleFloat {
    0% {
        background-position: 0 0, 40px 60px, 130px 270px, 70px 100px, 150px 50px;
    }
    100% {
        background-position: 200px 200px, 240px 260px, 330px 470px, 270px 300px, 350px 250px;
    }
}

/* Vision Section Header */
.vision .section-subtitle {
    background: rgba(0, 82, 204, 0.1);
    color: var(--primary-blue);
    border: 2px solid rgba(0, 82, 204, 0.2);
    backdrop-filter: blur(10px);
}

.vision .section-title {
    color: var(--text-primary);
    text-shadow: none;
}

.vision .section-divider {
    background: var(--gradient-secondary);
    box-shadow: 0 0 15px rgba(0, 82, 204, 0.3);
}

.vision .section-description {
    color: var(--text-secondary);
    text-shadow: none;
}

/* Vision Image */
.vision-image-wrapper {
    max-width: 1000px;
    margin: 60px auto 0;
    position: relative;
    z-index: 1;
}

.vision-image {
    width: 100%;
    height: auto;
    border-radius: 20px;
    box-shadow: 0 10px 40px rgba(0, 82, 204, 0.2);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.vision-image:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 60px rgba(0, 82, 204, 0.3);
}

/* Vision Tabs */
.vision-tabs {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 15px;
    margin: 60px 0 40px;
    flex-wrap: wrap;
    position: relative;
    z-index: 2;
}

.vision-tab {
    background: var(--white);
    border: 2px solid rgba(0, 82, 204, 0.2);
    border-radius: 12px;
    padding: 18px 30px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    min-width: 150px;
    box-shadow: 0 2px 8px rgba(0, 82, 204, 0.08);
}

.vision-tab:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 82, 204, 0.2);
    border-color: var(--primary-blue);
}

.vision-tab.active {
    background: var(--gradient-primary);
    border-color: transparent;
}

.tab-number {
    font-size: 1.6rem;
    font-weight: 900;
    font-family: var(--font-secondary);
    color: var(--primary-blue);
    transition: all 0.3s ease;
}

.vision-tab.active .tab-number {
    color: var(--white);
}

.tab-title {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--text-primary);
    transition: all 0.3s ease;
}

.vision-tab.active .tab-title {
    color: var(--white);
}

/* Vision Content */
.vision-content-wrapper {
    position: relative;
    min-height: 450px;
    margin-top: 40px;
}

.vision-content {
    display: none;
    opacity: 0;
    animation: fadeInUp 0.5s ease forwards;
}

.vision-content.active {
    display: block;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.vision-card {
    background: var(--white);
    border-radius: 20px;
    padding: 60px;
    box-shadow: 0 4px 20px rgba(0, 82, 204, 0.1);
    border: 3px solid rgba(0, 82, 204, 0.1);
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
    position: relative;
    overflow: hidden;
}

.vision-icon {
    width: 100px;
    height: 100px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 30px;
    box-shadow: 0 8px 25px rgba(0, 82, 204, 0.25);
}

.vision-icon i {
    font-size: 3rem;
    color: var(--white);
}

.vision-content-title {
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 20px;
    font-family: var(--font-secondary);
}

.vision-content-desc {
    font-size: 1.2rem;
    color: var(--text-secondary);
    line-height: 1.9;
    margin-bottom: 40px;
}

.vision-features {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-top: 40px;
}

.vision-feature-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    padding: 25px 20px;
    background: rgba(0, 82, 204, 0.04);
    border-radius: 12px;
    border: 2px solid transparent;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.vision-feature-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: var(--gradient-primary);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 0;
}

.vision-feature-item:hover::before {
    left: 0;
}

.vision-feature-item:hover {
    background: var(--gradient-primary);
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 82, 204, 0.25);
    border-color: var(--primary-blue);
}

.vision-feature-item i {
    font-size: 1.5rem;
    color: var(--primary-blue);
    transition: all 0.4s ease;
    position: relative;
    z-index: 1;
}

.vision-feature-item:hover i {
    color: var(--white);
    transform: scale(1.2);
}

.vision-feature-item span {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-primary);
    transition: all 0.4s ease;
    position: relative;
    z-index: 1;
}

.vision-feature-item:hover span {
    color: var(--white);
}

/* ========================================
   10.5. Partners/Clients Section
   ======================================== */
.clients {
    background: var(--white);
    position: relative;
}

/* 협력사 등록 현황 (타임라인) */
.partners-timeline {
    margin-top: 60px;
}

.timeline-container {
    position: relative;
    padding-left: 0;
}

.timeline-item {
    display: grid;
    grid-template-columns: 140px 1fr;
    gap: 40px;
    margin-bottom: 50px;
    position: relative;
}

.timeline-item:last-child {
    margin-bottom: 0;
}

.timeline-year {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--secondary-blue) 100%);
    color: var(--white);
    font-size: 1.8rem;
    font-weight: 900;
    padding: 20px;
    border-radius: 16px;
    text-align: center;
    box-shadow: 0 8px 25px rgba(0, 82, 204, 0.4);
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 80px;
    font-family: var(--font-secondary);
    position: relative;
    overflow: hidden;
}

.timeline-year::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.2) 0%, transparent 70%);
    animation: rotate 15s linear infinite;
}

.timeline-content {
    background: var(--white);
    padding: 30px 35px;
    border-radius: 20px;
    border-left: 5px solid var(--primary-blue);
    box-shadow: 0 8px 25px rgba(0, 82, 204, 0.12);
    transition: var(--transition-normal);
    position: relative;
}

.timeline-content::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    width: 5px;
    height: 0;
    background: var(--gradient-primary);
    transition: height 0.4s ease;
}

.timeline-item:hover .timeline-content::before {
    height: 100%;
}

.timeline-item:hover .timeline-content {
    transform: translateX(10px);
    box-shadow: 0 12px 40px rgba(0, 82, 204, 0.2);
    border-left-color: var(--accent-cyan);
}
    color: var(--dark-blue);
    margin: 0;
}

.timeline-container {
    position: relative;
    padding-left: 0;
}

.timeline-item {
    display: grid;
    grid-template-columns: 120px 1fr;
    gap: 30px;
    margin-bottom: 40px;
    position: relative;
}

.timeline-item:last-child {
    margin-bottom: 0;
}

.timeline-year {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--secondary-blue) 100%);
    color: var(--white);
    font-size: 1.5rem;
    font-weight: 700;
    padding: 15px 20px;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 4px 15px rgba(0, 82, 204, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 60px;
}

.timeline-content {
    background: var(--light-blue-bg);
    padding: 25px 30px;
    border-radius: 16px;
    border-left: 4px solid var(--primary-blue);
    box-shadow: 0 4px 15px rgba(0, 82, 204, 0.08);
    transition: var(--transition-normal);
}

.timeline-item:hover .timeline-content {
    transform: translateX(5px);
    box-shadow: 0 6px 20px rgba(0, 82, 204, 0.15);
    border-left-color: var(--accent-cyan);
}

.timeline-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}

.timeline-list li {
    font-size: 0.95rem;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 12px;
    background: var(--white);
    border-radius: 8px;
    transition: var(--transition-fast);
}

.timeline-list li:hover {
    background: var(--primary-blue);
    color: var(--white);
}

.timeline-list li:hover i {
    color: var(--white);
}

.timeline-list li i {
    color: var(--accent-cyan);
    font-size: 0.85rem;
    transition: var(--transition-fast);
}

/* Client Message */
.client-message {
    margin-top: 60px;
    text-align: center;
    padding: 40px;
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--secondary-blue) 100%);
    border-radius: 20px;
    box-shadow: 0 8px 30px rgba(0, 82, 204, 0.3);
}

.client-message p {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--white);
    margin: 0;
    line-height: 1.6;
    font-style: italic;
}

/* ========================================
   11. Projects Section
   ======================================== */
.projects {
    background: var(--light-blue-bg);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
}

.project-card {
    background: var(--white);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition-normal);
}

.project-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
}

.project-image {
    position: relative;
    overflow: hidden;
    height: 280px;
}

.project-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-slow);
}

.project-card:hover .project-image img {
    transform: scale(1.1);
}

.project-placeholder {
    width: 100%;
    height: 100%;
    background: var(--gradient-primary);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--white);
    transition: var(--transition-slow);
}

.project-placeholder i {
    font-size: 4rem;
    margin-bottom: 10px;
}

.project-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 82, 204, 0.95);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition-normal);
}

.project-card:hover .project-overlay {
    opacity: 1;
}

.project-overlay-content i {
    font-size: 3rem;
    color: var(--white);
    animation: zoomIn 0.5s ease;
}

@keyframes zoomIn {
    0% {
        transform: scale(0);
    }
    100% {
        transform: scale(1);
    }
}

.project-content {
    padding: 30px;
}

.project-category {
    display: inline-block;
    padding: 6px 16px;
    background: var(--light-blue);
    color: var(--primary-blue);
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 15px;
}

.project-title {
    font-size: 1.5rem; /* Desktop: 24px */
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 15px;
    line-height: 1.4;
}

.project-description {
    font-size: 1rem; /* Desktop: 16px */
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 20px;
}

.project-meta {
    display: flex;
    gap: 20px;
    padding-top: 20px;
    border-top: 2px solid var(--light-blue);
}

.project-meta span {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
    color: var(--text-light);
}

.project-meta i {
    color: var(--primary-blue);
}

/* Project Disclaimer */
.project-disclaimer {
    margin-top: 60px;
    padding: 25px 40px;
    background: linear-gradient(135deg, rgba(0, 82, 204, 0.05) 0%, rgba(0, 128, 255, 0.08) 100%);
    border-left: 4px solid var(--primary-blue);
    border-radius: 12px;
    text-align: center;
}

.project-disclaimer i {
    color: var(--primary-blue);
    font-size: 1.2rem;
    margin-right: 10px;
    vertical-align: middle;
}

.project-disclaimer p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin: 0;
    line-height: 1.6;
    display: inline;
}

/* ========================================
   12. Location Section
   ======================================== */
.location {
    background: var(--light-blue-bg);
    position: relative;
    overflow: hidden;
}

.location::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 20% 50%, rgba(0, 82, 204, 0.05) 0%, transparent 50%),
                radial-gradient(circle at 80% 50%, rgba(0, 217, 255, 0.05) 0%, transparent 50%);
    pointer-events: none;
}

.location-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
    margin-top: 60px;
    position: relative;
    z-index: 1;
}

.location-card {
    background: var(--white);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    transition: var(--transition-normal);
    border: 2px solid transparent;
}

.location-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 60px rgba(0, 82, 204, 0.2);
    border-color: var(--primary-blue);
}

.location-header {
    padding: 35px 30px;
    background: var(--gradient-primary);
    color: var(--white);
    text-align: center;
}

.location-title {
    font-size: 1.8rem; /* Desktop: 28.8px */
    font-weight: 700;
    margin: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    line-height: 1.4;
}

.location-title i {
    font-size: 1.6rem;
    color: var(--accent-cyan);
}

.location-address {
    display: flex;
    align-items: flex-start;
    gap: 15px;
    padding: 25px 30px;
    background: var(--light-blue-bg);
}

.location-address i {
    font-size: 1.3rem;
    color: var(--primary-blue);
    margin-top: 3px;
    flex-shrink: 0;
}

.location-address p {
    margin: 0;
    font-size: 1.05rem; /* Desktop: 16.8px */
    line-height: 1.6;
    color: var(--text-primary);
    font-weight: 500;
}
    line-height: 1.6;
    color: var(--text-primary);
    font-weight: 500;
}

.location-map {
    width: 100%;
    height: 300px;
    overflow: hidden;
    position: relative;
    background: var(--light-gray);
}

.location-map iframe {
    width: 100%;
    height: 100%;
    border: 0;
    display: block;
}

.location-contact {
    padding: 30px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 15px;
    background: var(--light-blue-bg);
    border-radius: 12px;
    margin-bottom: 12px;
    transition: var(--transition-normal);
}

.contact-item:last-child {
    margin-bottom: 0;
}

.contact-item:hover {
    background: var(--primary-blue);
    color: var(--white);
    transform: translateX(5px);
}

.contact-item i {
    font-size: 1.1rem;
    color: var(--primary-blue);
    width: 24px;
    text-align: center;
    transition: var(--transition-normal);
}

.contact-item:hover i {
    color: var(--accent-cyan);
}

.contact-item span {
    font-size: 0.95rem;
    font-weight: 500;
}

/* ========================================
   13. Contact Section
   ======================================== */
.contact {
    background: var(--white);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 60px;
}

.info-card {
    display: flex;
    gap: 20px;
    padding: 25px;
    background: var(--light-blue-bg);
    border-radius: 15px;
    margin-bottom: 20px;
    transition: var(--transition-normal);
    border: 2px solid transparent;
}

.info-card:hover {
    border-color: var(--primary-blue);
    transform: translateX(10px);
    box-shadow: var(--shadow-md);
}

.info-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.info-icon i {
    font-size: 1.5rem;
    color: var(--white);
}

.info-content h4 {
    font-size: 1.1rem;
    color: var(--text-primary);
    margin-bottom: 8px;
    font-weight: 600;
}

.info-content p {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.company-info {
    margin-top: 30px;
    padding: 30px;
    background: var(--gradient-primary);
    border-radius: 20px;
    color: var(--white);
}

.company-info h4 {
    font-size: 1.3rem;
    margin-bottom: 20px;
    font-weight: 700;
}

.company-info ul {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.company-info li {
    font-size: 1rem;
    line-height: 1.6;
}

.company-info strong {
    font-weight: 700;
    margin-right: 10px;
}

/* Contact Form */
.contact-form {
    background: var(--light-blue-bg);
    padding: 50px 40px;
    border-radius: 30px;
    box-shadow: var(--shadow-lg);
    border: 3px solid var(--primary-blue);
}

.form-group {
    margin-bottom: 25px;
}

.form-group label {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.form-group label i {
    color: var(--primary-blue);
    font-size: 1.1rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 15px 20px;
    border: 2px solid var(--border-color);
    border-radius: 12px;
    font-size: 1rem;
    font-family: inherit;
    transition: var(--transition-normal);
    background: var(--white);
    color: var(--text-primary);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 4px rgba(0, 82, 204, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.form-error {
    display: block;
    color: #e74c3c;
    font-size: 0.85rem;
    margin-top: 8px;
    min-height: 20px;
}

.btn-submit {
    width: 100%;
    padding: 18px;
    background: var(--gradient-primary);
    color: var(--white);
    font-size: 1.1rem;
    font-weight: 700;
    border-radius: 12px;
    cursor: pointer;
    transition: var(--transition-normal);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    border: none;
    box-shadow: var(--shadow-md);
}

.btn-submit:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

/* ========================================
   12. Footer
   ======================================== */
.footer {
    background: var(--dark-blue);
    color: var(--white);
    padding: 80px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
    padding-bottom: 40px;
}

.footer-section {
    display: flex;
    flex-direction: column;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 15px;
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 20px;
}

.footer-logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--white);
    letter-spacing: -0.5px;
}

.footer-logo i {
    font-size: 1.8rem;
    color: var(--accent-cyan);
}

.footer-logo-image {
    height: 45px;
    width: 45px;
    object-fit: contain;
    transition: var(--transition-normal);
}

.footer-logo:hover .footer-logo-image {
    transform: scale(1.1) rotate(-5deg);
}

.footer-logo:hover .footer-logo-text {
    color: var(--accent-cyan);
}

.footer-description {
    font-size: 0.95rem;
    line-height: 1.8;
    opacity: 0.85;
    color: var(--white);
}

.footer-title {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--accent-cyan);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* 회사정보 스타일 */
.footer-info,
.footer-links {
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    gap: 10px 15px;
    list-style: none;
}

.footer-links a {
    color: var(--white);
    opacity: 0.85;
    font-size: 0.95rem;
    line-height: 1.8;
    text-decoration: none;
    transition: var(--transition-normal);
    white-space: nowrap;
}

.footer-links a:hover {
    color: var(--accent-cyan);
    opacity: 1;
}

.footer-info li {
    color: var(--white);
    opacity: 0.85;
    font-size: 0.95rem;
    line-height: 1.8;
    white-space: nowrap;
}

/* 연락처 스타일 */
.footer-contact {
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    gap: 10px 15px;
    list-style: none;
}

.footer-contact li {
    color: var(--white);
    opacity: 0.85;
    font-size: 0.95rem;
    line-height: 1.8;
    display: flex;
    align-items: center;
    gap: 8px;
    white-space: nowrap;
}

.footer-contact li i {
    color: var(--accent-cyan);
    font-size: 1rem;
    width: 18px;
}

.footer-contact a {
    color: var(--white);
    text-decoration: none;
    transition: var(--transition-normal);
}

.footer-contact a:hover {
    color: var(--accent-cyan);
}



.social-links {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.social-links a {
    color: var(--white);
    opacity: 0.85;
    font-size: 0.95rem;
    text-decoration: none;
    transition: var(--transition-normal);
    display: flex;
    align-items: center;
    gap: 10px;
}

.social-links a i {
    width: 20px;
    color: var(--accent-cyan);
    font-size: 1.1rem;
}

.social-links a:hover {
    opacity: 1;
    color: var(--accent-cyan);
    transform: translateX(5px);
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
    opacity: 0.7;
    margin: 5px 0;
}

.footer-bottom i {
    color: var(--accent-cyan);
    animation: heartbeat 1.5s ease-in-out infinite;
}

@keyframes heartbeat {
    0%, 100% {
        transform: scale(1);
    }
    25% {
        transform: scale(1.2);
    }
    50% {
        transform: scale(1);
    }
}

/* ========================================
   13. Scroll to Top Button
   ======================================== */
.scroll-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-normal);
    z-index: 999;
    box-shadow: var(--shadow-lg);
}

.scroll-top.show {
    opacity: 1;
    visibility: visible;
}

.scroll-top:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

/* ========================================
   14. Custom Alert
   ======================================== */
.custom-alert {
    position: fixed;
    top: 100px;
    right: 30px;
    background: var(--white);
    padding: 20px 30px;
    border-radius: 15px;
    box-shadow: var(--shadow-xl);
    opacity: 0;
    visibility: hidden;
    transform: translateX(100%);
    transition: all var(--transition-normal);
    z-index: 9999;
    border-left: 5px solid var(--primary-blue);
    max-width: 400px;
}

.custom-alert.show {
    opacity: 1;
    visibility: visible;
    transform: translateX(0);
}

.alert-content {
    display: flex;
    align-items: center;
    gap: 15px;
}

.alert-icon {
    font-size: 2rem;
    color: var(--primary-blue);
}

.alert-message {
    font-size: 1rem;
    color: var(--text-primary);
    font-weight: 500;
}

/* ========================================
   14.5. Project Gallery Modal
   ======================================== */
.gallery-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.95);
    z-index: 10000;
    overflow-y: auto;
    animation: fadeIn 0.3s ease;
}

.gallery-modal.show {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.gallery-modal-content {
    background: var(--white);
    border-radius: 20px;
    width: 100%;
    max-width: 1200px;
    padding: 40px;
    position: relative;
    animation: slideUp 0.4s ease;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.gallery-close {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 45px;
    height: 45px;
    background: var(--primary-blue);
    color: var(--white);
    border: none;
    border-radius: 50%;
    font-size: 1.5rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    z-index: 10;
}

.gallery-close:hover {
    background: var(--secondary-blue);
    transform: rotate(90deg);
}

.gallery-header {
    text-align: center;
    margin-bottom: 30px;
}

.gallery-header h3 {
    font-size: 2rem;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 10px;
    font-family: var(--font-secondary);
}

.gallery-header p {
    font-size: 1.1rem;
    color: var(--text-secondary);
}

.gallery-main {
    position: relative;
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 30px;
}

.gallery-image-container {
    flex: 1;
    position: relative;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 8px 30px rgba(0, 82, 204, 0.2);
}

.gallery-image-container img {
    width: 100%;
    height: 500px;
    object-fit: cover;
    display: block;
}

.gallery-counter {
    position: absolute;
    bottom: 20px;
    right: 20px;
    background: rgba(0, 0, 0, 0.7);
    color: var(--white);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 1rem;
    font-weight: 600;
}

.gallery-nav {
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    color: var(--white);
    border: none;
    border-radius: 50%;
    font-size: 1.5rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    flex-shrink: 0;
}

.gallery-nav:hover {
    transform: scale(1.1);
    box-shadow: 0 5px 20px rgba(0, 82, 204, 0.4);
}

.gallery-thumbnails {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 15px;
}

.gallery-thumbnail {
    cursor: pointer;
    border-radius: 10px;
    overflow: hidden;
    border: 3px solid transparent;
    transition: all 0.3s ease;
    aspect-ratio: 16/9;
}

.gallery-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.gallery-thumbnail:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(0, 82, 204, 0.3);
}

.gallery-thumbnail.active {
    border-color: var(--primary-blue);
    box-shadow: 0 5px 20px rgba(0, 82, 204, 0.4);
}

/* 반응형 */
@media (max-width: 992px) {
    .gallery-modal-content {
        padding: 30px 20px;
    }
    
    .gallery-image-container img {
        height: 400px;
    }
    
    .gallery-thumbnails {
        grid-template-columns: repeat(3, 1fr);
        gap: 10px;
    }
}

@media (max-width: 576px) {
    .gallery-modal-content {
        padding: 20px 15px;
    }
    
    .gallery-header h3 {
        font-size: 1.5rem;
    }
    
    .gallery-header p {
        font-size: 0.95rem;
    }
    
    .gallery-image-container img {
        height: 250px;
    }
    
    .gallery-nav {
        width: 40px;
        height: 40px;
        font-size: 1.2rem;
    }
    
    .gallery-thumbnails {
        grid-template-columns: repeat(2, 1fr);
        gap: 8px;
    }
    
    .gallery-close {
        width: 38px;
        height: 38px;
        font-size: 1.2rem;
    }
}

/* Project Overlay 수정 */
.project-overlay-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

.project-overlay-content span {
    font-size: 1rem;
    font-weight: 600;
    color: var(--white);
}

/* ========================================
   15. Responsive Design
   ======================================== */
/* Tablet: 768px - 992px */
@media (max-width: 992px) and (min-width: 769px) {
    :root {
        --section-padding: 80px;
    }
    
    .hero-title {
        font-size: 3.5rem; /* Tablet: 52.5px */
    }
    
    .title-main {
        font-size: 2.6rem; /* Tablet: 39px */
    }
    
    .hero-subtitle {
        font-size: 1.35rem; /* Tablet: 20.25px */
        line-height: 1.7;
    }
    
    .hero-subtitle .highlight-text {
        font-size: 1.55rem; /* Tablet: 23.25px */
        padding: 4px 12px;
    }
    
    .section-title {
        font-size: 2.6rem; /* Tablet: 39px */
    }
    
    .section-description {
        font-size: 1.1rem; /* Tablet: 16.5px */
    }
    
    .stat-number {
        font-size: 3.2rem; /* Tablet: 48px */
    }
    
    .stat-suffix {
        font-size: 1.6rem; /* Tablet: 24px */
    }
    
    .stat-label {
        font-size: 0.9rem; /* Tablet: 13.5px */
    }
    
    .service-title {
        font-size: 1.6rem; /* Tablet: 24px */
    }
    
    .service-description {
        font-size: 1rem; /* Tablet: 15px */
    }
    
    .project-title {
        font-size: 1.4rem; /* Tablet: 21px */
    }
    
    .project-description {
        font-size: 0.95rem; /* Tablet: 14.25px */
    }
    
    .about-title {
        font-size: 2rem; /* Tablet: 30px */
    }
    
    .about-text {
        font-size: 1.05rem; /* Tablet: 15.75px */
    }
    
    .location-title {
        font-size: 1.6rem; /* Tablet: 24px */
    }
    
    .location-address p {
        font-size: 1rem; /* Tablet: 15px */
    }
    
    /* Vision 반응형 - Desktop */
    .vision-grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        gap: 20px;
    }
}

/* Tablet and below: 768px and down */
@media (max-width: 992px) {
    :root {
        --section-padding: 70px;
    }
    
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: var(--dark-blue);
        flex-direction: column;
        justify-content: center;
        gap: 30px;
        transition: var(--transition-normal);
        box-shadow: var(--shadow-xl);
    }
    
    .nav-menu.active {
        right: 0;
    }
    
    .hamburger {
        display: flex;
        z-index: 1001;
    }
    
    .hamburger.active span:nth-child(1) {
        transform: rotate(45deg) translate(8px, 8px);
    }
    
    .hamburger.active span:nth-child(2) {
        opacity: 0;
    }
    
    .hamburger.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -7px);
    }
    
    .hero-title {
        font-size: 3rem;
    }
    
    .title-main {
        font-size: 2.2rem;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .about-grid,
    .contact-grid,
    .location-grid {
        grid-template-columns: 1fr;
        gap: 50px;
    }
    
    .company-stats {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .about-features {
        justify-content: center;
    }
    
    .services-grid,
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .cert-grid-6 {
        grid-template-columns: repeat(2, 1fr);
        gap: 25px;
    }
    
    .timeline-item {
        grid-template-columns: 120px 1fr;
        gap: 25px;
    }
    
    .timeline-year {
        font-size: 1.6rem;
        padding: 18px;
        min-height: 70px;
    }
    
    .timeline-content {
        padding: 25px 30px;
    }
    
    .project-disclaimer {
        margin-top: 40px;
        padding: 20px 25px;
        font-size: 0.9rem;
    }
    
    .project-disclaimer i {
        font-size: 1.1rem;
        margin-right: 8px;
    }
    
    .timeline-list {
        grid-template-columns: 1fr;
    }
    
    .goals-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
        gap: 40px;
    }
    
    /* Vision Section - Tablet */
    .vision-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
}

/* Mobile: 576px and below */
@media (max-width: 576px) {
    .hero-title {
        font-size: 2.4rem; /* Mobile: 33.6px */
        margin-bottom: 20px;
    }
    
    .title-main {
        font-size: 1.8rem; /* Mobile: 25.2px */
    }
    
    .section-title {
        font-size: 2.2rem; /* Mobile: 30.8px */
        line-height: 1.3;
    }
    
    .section-subtitle {
        font-size: 0.85rem; /* Mobile: 11.9px */
        padding: 6px 18px;
        letter-spacing: 1.5px;
    }
    
    .section-description {
        font-size: 1rem; /* Mobile: 14px */
        line-height: 1.7;
    }
    
    .hero-subtitle {
        font-size: 1.15rem; /* Mobile: 16.1px */
        line-height: 1.6;
        margin-bottom: 30px;
    }
    
    .hero-subtitle .highlight-text {
        font-size: 1.35rem; /* Mobile: 18.9px */
        padding: 4px 10px;
        letter-spacing: 1px;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .cert-grid-6 {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .timeline-item {
        grid-template-columns: 100px 1fr;
        gap: 20px;
    }
    
    .vision-tabs {
        flex-direction: column;
        gap: 10px;
        margin: 40px 0 30px;
    }
    
    .vision-tab {
        width: 100%;
        flex-direction: row;
        justify-content: flex-start;
        padding: 15px 20px;
        min-width: auto;
    }
    
    .tab-number {
        font-size: 1.4rem;
    }
    
    .tab-title {
        font-size: 0.9rem;
    }
    
    .vision-card {
        padding: 40px 25px;
    }
    
    .vision-icon {
        width: 80px;
        height: 80px;
        margin-bottom: 20px;
    }
    
    .vision-icon i {
        font-size: 2.2rem;
    }
    
    .vision-content-title {
        font-size: 1.8rem;
    }
    
    .vision-content-desc {
        font-size: 1rem;
    }
    
    .vision-features {
        grid-template-columns: 1fr;
        gap: 12px;
    }
    
    .vision-feature-item {
        padding: 20px 15px;
    }
        margin-bottom: 35px;
    }
    
    .timeline-year {
        font-size: 1.4rem;
        padding: 15px;
        min-height: 60px;
    }
    
    .timeline-content {
        padding: 20px 25px;
    }
    }
    
    .client-message p {
        font-size: 1.1rem;
    }
    
    .cert-image {
        height: 320px;
    }
    
    .stat-number {
        font-size: 3rem; /* Mobile: 42px */
    }
    
    .stat-suffix {
        font-size: 1.6rem; /* Mobile: 22.4px */
    }
    
    .stat-label {
        font-size: 0.9rem; /* Mobile: 12.6px */
        line-height: 1.3;
    }
    
    .service-title {
        font-size: 1.4rem; /* Mobile: 19.6px */
        line-height: 1.3;
    }
    
    .service-description {
        font-size: 0.95rem; /* Mobile: 13.3px */
        line-height: 1.7;
    }
    
    .project-title {
        font-size: 1.3rem; /* Mobile: 18.2px */
        line-height: 1.3;
    }
    
    .project-description {
        font-size: 0.9rem; /* Mobile: 12.6px */
        line-height: 1.6;
    }
    
    .btn {
        font-size: 1rem; /* Mobile: 14px */
        padding: 14px 28px;
    }
    
    .about-title {
        font-size: 1.8rem; /* Mobile: 25.2px */
        line-height: 1.3;
    }
    
    .about-text {
        font-size: 1rem; /* Mobile: 14px */
        line-height: 1.7;
    }
    
    .location-title {
        font-size: 1.4rem; /* Mobile: 19.6px */
        line-height: 1.3;
    }
    
    .location-address p {
        font-size: 0.95rem; /* Mobile: 13.3px */
        line-height: 1.5;
    }
    
    .philosophy-text {
        font-size: 1.5rem; /* Mobile: 21px */
        line-height: 1.6;
    }
    
    .philosophy-title {
        font-size: 1.2rem; /* Mobile: 16.8px */
    }
    
    /* Vision - Mobile */
    .vision-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .vision-tabs {
        gap: 12px;
        margin: 50px 0 30px;
    }
    
    .vision-tab {
        min-width: 140px;
        padding: 18px 25px;
    }
    
    .tab-number {
        font-size: 1.6rem;
    }
    
    .tab-title {
        font-size: 0.95rem;
    }
    
    .vision-card {
        padding: 50px 40px;
    }
    
    .vision-icon {
        width: 90px;
        height: 90px;
        margin-bottom: 25px;
    }
    
    .vision-icon i {
        font-size: 2.5rem;
    }
    
    .vision-content-title {
        font-size: 2rem;
    }
    
    .vision-content-desc {
        font-size: 1.1rem;
    }
    
    .vision-features {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }
    
    .about-features {
        flex-wrap: nowrap;
        justify-content: center;
        gap: 10px;
    }
    
    .feature-item {
        padding: 10px 15px;
        gap: 8px;
        font-size: 0.85rem;
    }
    
    .feature-item i {
        font-size: 1.2rem;
    }
    
    .custom-alert {
        right: 15px;
        left: 15px;
        max-width: none;
    }
}