/* 
 * AI Instructor Portfolio - Premium Design System
 * Fonts: Pretendard (KR), Outfit (EN)
 */

@import url("https://cdn.jsdelivr.net/gh/orioncactus/pretendard@v1.3.9/dist/web/static/pretendard.min.css");
@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&display=swap');

:root {
    /* Color Palette - Deep & Sophisticated */
    --bg-main: #0B0F19;
    /* Very deep blue-black */
    --bg-secondary: #111827;

    /* Glassmorphism Backgrounds */
    --glass-bg: rgba(30, 41, 59, 0.4);
    --glass-border: rgba(255, 255, 255, 0.08);
    --glass-highlight: rgba(255, 255, 255, 0.03);

    /* Accents - Gradient based */
    --accent-primary: #3B82F6;
    --accent-secondary: #8B5CF6;
    --accent-glow: rgba(59, 130, 246, 0.5);

    --gradient-main: linear-gradient(135deg, #3B82F6 0%, #8B5CF6 100%);
    --gradient-text: linear-gradient(135deg, #60A5FA 0%, #A78BFA 100%);
    --gradient-dark: linear-gradient(145deg, rgba(30, 41, 59, 0.4) 0%, rgba(15, 23, 42, 0.6) 100%);

    /* Text Colors */
    --text-primary: #F1F5F9;
    --text-secondary: #94A3B8;
    --text-muted: #64748B;

    /* Typography */
    --font-main: 'Pretendard', -apple-system, BlinkMacSystemFont, system-ui, Roboto, sans-serif;
    --font-heading: 'Outfit', sans-serif;

    /* Spacing & Layout */
    --container-width: 1200px;
    --header-height: 80px;
    --border-radius-lg: 24px;
    --border-radius-md: 16px;
    --border-radius-sm: 8px;

    /* Transitions */
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-smooth: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    /* iOS Safe Area */
    --safe-top: env(safe-area-inset-top, 0px);
}

/* Reset & Base */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    overflow-x: hidden;
}

body {
    background-color: var(--bg-main);
    color: var(--text-primary);
    font-family: var(--font-main);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

/* Typography Utilities */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    color: var(--text-primary);
}

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

/* Focus styles for keyboard users */
.nav-links a:focus-visible,
.btn:focus-visible,
.tab-btn:focus-visible,
.filter-btn:focus-visible,
.hamburger:focus-visible {
    outline: 2px solid var(--accent-primary);
    outline-offset: 3px;
    border-radius: 6px;
}

ul {
    list-style: none;
}

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 24px;
}

/* Animations */
@keyframes float {
    0% {
        transform: translateY(0px);
    }

    50% {
        transform: translateY(-10px);
    }

    100% {
        transform: translateY(0px);
    }
}

@keyframes glow {
    0% {
        box-shadow: 0 0 5px var(--accent-glow);
    }

    50% {
        box-shadow: 0 0 20px var(--accent-glow);
    }

    100% {
        box-shadow: 0 0 5px var(--accent-glow);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.fade-in.is-visible {
    opacity: 1;
    transform: translateY(0);
}

/* Header & Nav */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    z-index: 1000;
    transition: var(--transition-smooth);
    display: flex;
    align-items: center;
    padding-top: var(--safe-top);
}

header.scrolled {
    background: rgba(11, 15, 25, 0.8);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--glass-border);
}

nav {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 60px;
}

.hamburger {
    display: none;
    background: transparent;
    border: 0;
    padding: 0;
    margin: 0;
    -webkit-appearance: none;
    appearance: none;
}

.logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 800;
    background: var(--gradient-main);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: -0.5px;
}

.nav-links {
    display: flex;
    gap: 48px;
    align-items: center;
}

.nav-links a {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-secondary);
    position: relative;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--text-primary);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-main);
    transition: width var(--transition-fast);
}

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

/* Hero Section */
#hero {
    /* Allow content to grow beyond viewport on small screens */
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding-top: calc(var(--header-height) + var(--safe-top));
    position: relative;
    overflow: hidden;
    /* Prevent any child from overflowing */
}

/* Ambient Background Effect - Enhanced */
#hero::before {
    content: '';
    position: absolute;
    top: -30%;
    left: 50%;
    transform: translateX(-50%);
    width: 1000px;
    height: 1000px;
    background:
        radial-gradient(ellipse 600px 400px at 30% 40%, rgba(59, 130, 246, 0.2) 0%, transparent 60%),
        radial-gradient(ellipse 500px 500px at 70% 60%, rgba(139, 92, 246, 0.15) 0%, transparent 50%);
    filter: blur(80px);
    z-index: -1;
    pointer-events: none;
    animation: heroGlow 8s ease-in-out infinite alternate;
}

#hero::after {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 20% 80%, rgba(59, 130, 246, 0.03) 0%, transparent 40%),
        radial-gradient(circle at 80% 20%, rgba(139, 92, 246, 0.03) 0%, transparent 40%);
    pointer-events: none;
    z-index: -1;
}

@keyframes heroGlow {
    0% { opacity: 0.8; transform: translateX(-50%) scale(1); }
    100% { opacity: 1; transform: translateX(-50%) scale(1.05); }
}

.hero-content {
    max-width: 900px;
    z-index: 1;
    min-width: 0;
    /* Critical for flex item shrinking */
    width: 100%;
    overflow: hidden;
    /* Force containment of logo slider */
}

.hero-subtitle {
    font-family: var(--font-heading);
    color: var(--accent-primary);
    font-weight: 600;
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 1.5rem;
    font-size: 0.9rem;
    display: inline-block;
    padding: 6px 16px;
    background: rgba(59, 130, 246, 0.1);
    border-radius: 50px;
    border: 1px solid rgba(59, 130, 246, 0.2);
}

.hero-title {
    font-size: clamp(1.75rem, 6vw, 4.5rem);
    font-weight: 800;
    line-height: 1.3;
    margin-bottom: 2rem;
    letter-spacing: -1px;
    word-break: break-word;
    overflow-wrap: break-word;
}

.hero-title span {
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-description {
    font-size: clamp(1rem, 2.5vw, 1.25rem);
    color: var(--text-secondary);
    margin-bottom: 3.5rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.7;
    word-break: break-word;
    overflow-wrap: break-word;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 16px 40px;
    background: var(--gradient-main);
    color: white;
    font-weight: 600;
    border-radius: 50px;
    font-size: 1.1rem;
    transition: var(--transition-smooth);
    box-shadow: 0 4px 20px rgba(59, 130, 246, 0.3);
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255,255,255,0.2) 0%, transparent 50%, rgba(255,255,255,0.1) 100%);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.btn:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow:
        0 8px 30px rgba(59, 130, 246, 0.5),
        0 0 40px rgba(59, 130, 246, 0.3);
}

.btn:hover::before {
    opacity: 1;
}

.btn:active {
    transform: translateY(-1px) scale(0.99);
}

/* Logo Slider */
.logo-slider-container {
    margin: 40px 0 60px;
    width: 100%;
    overflow: hidden;
    position: relative;
}

.slider-label {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 20px;
    letter-spacing: 1px;
    text-transform: uppercase;
}

.logo-slider {
    width: 100%;
    position: relative;
}

.logo-slider::before,
.logo-slider::after {
    content: "";
    position: absolute;
    top: 0;
    width: 100px;
    height: 100%;
    z-index: 2;
    pointer-events: none;
}

.logo-slider::before {
    left: 0;
    background: linear-gradient(to right, var(--bg-main), transparent);
}

.logo-slider::after {
    right: 0;
    background: linear-gradient(to left, var(--bg-main), transparent);
}

.logo-track {
    display: flex;
    width: calc(120px * 12);
    /* 120px width * 12 slides (6 unique * 2) */
    animation: scroll 20s linear infinite;
}

.slide {
    width: 120px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-smooth);
    padding: 0 15px;
    /* Add spacing between logos */
}

.slide img {
    max-height: 40px;
    max-width: 100%;
    width: auto;
    object-fit: contain;
    /* Uniform Bright White Style for Dark Theme */
    filter: grayscale(100%) brightness(0) invert(1);
    opacity: 0.8;
    transition: all 0.3s ease;
}

.slide:hover img {
    /* On hover: Restore original color (if desired) or just brighter */
    opacity: 1;
    filter: grayscale(0%) brightness(1);
    transform: scale(1.1);
}

/* Individual Logo Size Adjustments */
.slide img.logo-hanwha {
    transform: scale(1.3);
}

.slide img.logo-mizuho {
    transform: scale(0.8);
}

.slide img.logo-crenor {
    transform: scale(1.8);
}

.slide img.logo-thestory {
    transform: scale(1.4);
}

.slide img.logo-kukbo {
    transform: scale(1.4);
}

.slide img.logo-handys {
    transform: scale(0.8);
}

.slide:hover img.logo-hanwha,
.slide:hover img.logo-thestory,
.slide:hover img.logo-kukbo {
    transform: scale(1.5);
}

.slide:hover img.logo-crenor {
    transform: scale(1.9);
}

.slide:hover img.logo-mizuho,
.slide:hover img.logo-handys {
    transform: scale(0.9);
}

@keyframes scroll {
    0% {
        transform: translateX(0);
    }

    100% {
        transform: translateX(calc(-120px * 6));
        /* Move by half the total width (6 slides) */
    }
}

/* Section Styles */
section {
    padding: 100px 0;
    position: relative;
}

section:not(#hero)::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 120px;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(59, 130, 246, 0.4), transparent);
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-tag {
    color: var(--accent-secondary);
    font-weight: 700;
    font-size: 0.8rem;
    letter-spacing: 3px;
    text-transform: uppercase;
    margin-bottom: 1rem;
    display: inline-block;
    padding: 6px 14px;
    background: rgba(139, 92, 246, 0.08);
    border-radius: 20px;
    border: 1px solid rgba(139, 92, 246, 0.15);
}

.section-title {
    font-size: clamp(1.75rem, 5vw, 3rem);
    margin-bottom: 1.5rem;
    word-wrap: break-word;
    overflow-wrap: break-word;
    letter-spacing: -0.5px;
}

.section-description {
    color: var(--text-secondary);
    font-size: clamp(1rem, 2vw, 1.1rem);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.7;
}

/* Cards (Glassmorphism) */
.glass-card,
.strength-card,
.testimonial-card,
.showcase-card,
.profile-card {
    background: var(--gradient-dark);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius-lg);
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
    display: flex;
    /* Added flex */
    flex-direction: column;
    /* Column layout */
}

.glass-card::before,
.strength-card::before,
.testimonial-card::before,
.showcase-card::before,
.profile-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg, var(--glass-highlight) 0%, transparent 100%);
    pointer-events: none;
    z-index: 1;
}

.glass-card:hover,
.strength-card:hover,
.testimonial-card:hover,
.showcase-card:hover,
.profile-card:hover {
    transform: translateY(-10px);
    border-color: rgba(255, 255, 255, 0.2);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

/* Strengths Grid */
.strengths-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), 1fr));
    gap: 30px;
}

.strength-card {
    padding: 40px;
}

.strength-card:hover {
    transform: translateY(-12px);
    border-color: rgba(59, 130, 246, 0.3);
    box-shadow:
        0 24px 48px rgba(0, 0, 0, 0.35),
        0 0 0 1px rgba(59, 130, 246, 0.15);
}

.strength-icon {
    width: 72px;
    height: 72px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    margin-bottom: 24px;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.15) 0%, rgba(139, 92, 246, 0.1) 100%);
    border: 1px solid rgba(59, 130, 246, 0.2);
    border-radius: 16px;
    color: var(--accent-primary);
    -webkit-background-clip: unset;
    -webkit-text-fill-color: unset;
    transition: all 0.35s ease;
    position: relative;
}

.strength-icon::after {
    content: '';
    position: absolute;
    inset: -1px;
    border-radius: 16px;
    background: var(--gradient-main);
    opacity: 0;
    z-index: -1;
    transition: opacity 0.35s ease;
}

.strength-card:hover .strength-icon {
    background: var(--gradient-main);
    border-color: transparent;
    color: white;
    transform: scale(1.08) rotate(-3deg);
    box-shadow: 0 8px 24px rgba(59, 130, 246, 0.35);
}

.strength-title {
    font-size: 1.5rem;
    margin-bottom: 16px;
}

.strength-description {
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ========================================
   Programs Section - Card Grid UI
   ======================================== */

/* Section hint text */
.section-hint {
    display: block;
    margin-top: 8px;
    font-size: 0.9rem;
    color: var(--accent-primary);
    opacity: 0.8;
}

/* Card Grid Layout */
.program-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-bottom: 40px;
}

/* Individual Card Styling */
.program-card {
    --card-accent: var(--accent-primary);
    position: relative;
    background: var(--gradient-dark);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius-lg);
    padding: 28px;
    cursor: pointer;
    transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    min-height: 320px;
}

/* Card accent colors */
.program-card[data-program="literacy"] { --card-accent: #3B82F6; }
.program-card[data-program="assistant"] { --card-accent: #8B5CF6; }
.program-card[data-program="specialized"] { --card-accent: #10B981; }
.program-card[data-program="cursor"] { --card-accent: #F59E0B; }
.program-card[data-program="webpage"] { --card-accent: #EC4899; }

/* Top accent line */
.card-accent {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--card-accent);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.35s ease;
}

.program-card:hover .card-accent,
.program-card:focus .card-accent {
    transform: scaleX(1);
}

/* Special badge (e.g., "도메인 무료") */
.card-badge {
    position: absolute;
    top: 16px;
    right: 16px;
    padding: 6px 12px;
    background: linear-gradient(135deg, rgba(236, 72, 153, 0.2), rgba(236, 72, 153, 0.1));
    border: 1px solid rgba(236, 72, 153, 0.4);
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    color: #EC4899;
    z-index: 2;
}

.card-badge i {
    margin-right: 4px;
}

/* Card Header */
.card-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    margin-bottom: 20px;
}

.card-number {
    font-family: var(--font-heading);
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--card-accent);
    opacity: 0.6;
    letter-spacing: 1px;
}

.card-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(var(--card-accent-rgb, 59, 130, 246), 0.15), rgba(var(--card-accent-rgb, 59, 130, 246), 0.05));
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 14px;
    font-size: 1.3rem;
    color: var(--card-accent);
    transition: all 0.35s ease;
}

.program-card:hover .card-icon,
.program-card:focus .card-icon {
    transform: scale(1.1) rotate(-5deg);
    background: var(--card-accent);
    color: white;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}

/* Card Body */
.card-body {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.card-tag {
    display: inline-block;
    padding: 4px 10px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--glass-border);
    border-radius: 6px;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--card-accent);
    margin-bottom: 12px;
    align-self: flex-start;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.card-title {
    font-size: 1.35rem;
    font-weight: 700;
    line-height: 1.3;
    color: var(--text-primary);
    margin-bottom: 12px;
    transition: color 0.3s ease;
}

.program-card:hover .card-title,
.program-card:focus .card-title {
    color: var(--card-accent);
}

.card-desc {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.6;
    flex: 1;
}

/* Card Footer */
.card-footer {
    margin-top: auto;
    padding-top: 20px;
    border-top: 1px solid var(--glass-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.card-meta {
    display: flex;
    gap: 16px;
}

.card-meta span {
    font-size: 0.8rem;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 6px;
}

.card-meta i {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.card-cta {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--card-accent);
    display: flex;
    align-items: center;
    gap: 6px;
    opacity: 0;
    transform: translateX(-10px);
    transition: all 0.3s ease;
}

.card-cta i {
    transition: transform 0.3s ease;
}

.program-card:hover .card-cta,
.program-card:focus .card-cta {
    opacity: 1;
    transform: translateX(0);
}

.program-card:hover .card-cta i,
.program-card:focus .card-cta i {
    transform: translateX(4px);
}

/* Card Hover Effects */
.program-card:hover,
.program-card:focus {
    transform: translateY(-8px);
    border-color: var(--card-accent);
    box-shadow:
        0 20px 40px rgba(0, 0, 0, 0.3),
        0 0 0 1px rgba(255, 255, 255, 0.1),
        0 0 60px rgba(var(--card-accent-rgb, 59, 130, 246), 0.15);
}

.program-card:focus {
    outline: 2px solid var(--card-accent);
    outline-offset: 2px;
}

/* ========================================
   Program Modal
   ======================================== */

.program-modal {
    position: fixed;
    inset: 0;
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all 0.35s ease;
}

.program-modal.active {
    opacity: 1;
    visibility: visible;
}

.modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(8px);
    cursor: pointer;
}

.modal-content {
    position: relative;
    width: 90%;
    max-width: 600px;
    max-height: 90vh;
    background: var(--bg-secondary);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    transform: scale(0.9) translateY(20px);
    transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 25px 80px rgba(0, 0, 0, 0.5);
}

.program-modal.active .modal-content {
    transform: scale(1) translateY(0);
}

.modal-close {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--glass-border);
    border-radius: 50%;
    color: var(--text-secondary);
    font-size: 1.1rem;
    cursor: pointer;
    transition: all 0.25s ease;
    z-index: 10;
}

.modal-close:hover {
    background: rgba(239, 68, 68, 0.2);
    border-color: rgba(239, 68, 68, 0.4);
    color: #EF4444;
    transform: rotate(90deg);
}

/* Modal Body (hidden by default) */
.modal-body {
    display: none;
    padding: 40px;
    overflow-y: auto;
    max-height: 90vh;
}

.modal-body.active {
    display: block;
    animation: modalBodyFadeIn 0.4s ease-out;
}

@keyframes modalBodyFadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Modal Header */
.modal-header {
    text-align: center;
    margin-bottom: 28px;
}

.modal-icon {
    width: 72px;
    height: 72px;
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-main);
    border-radius: 20px;
    font-size: 2rem;
    color: white;
    box-shadow: 0 8px 32px rgba(59, 130, 246, 0.3);
}

.modal-tag {
    display: inline-block;
    padding: 6px 14px;
    background: rgba(59, 130, 246, 0.1);
    border: 1px solid rgba(59, 130, 246, 0.2);
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--accent-primary);
    margin-bottom: 16px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.modal-title {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 12px;
    line-height: 1.3;
}

.modal-desc {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* Modal Meta */
.modal-meta {
    display: flex;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 32px;
}

.meta-item {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 18px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--glass-border);
    border-radius: 10px;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.meta-item i {
    color: var(--accent-primary);
    font-size: 0.9rem;
}

.meta-item.highlight {
    background: rgba(139, 92, 246, 0.15);
    border-color: rgba(139, 92, 246, 0.3);
    color: var(--text-primary);
}

.meta-item.highlight i {
    color: var(--accent-secondary);
}

/* Modal Details */
.modal-details {
    background: rgba(0, 0, 0, 0.2);
    border-radius: var(--border-radius-md);
    padding: 24px;
    margin-bottom: 28px;
}

.modal-details h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.modal-details h4 i {
    color: var(--accent-primary);
}

.modal-details ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.modal-details li {
    padding: 12px 0;
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.5;
    display: flex;
    align-items: flex-start;
    gap: 12px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.modal-details li:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.modal-details li i {
    color: var(--accent-primary);
    font-size: 0.85rem;
    margin-top: 4px;
    flex-shrink: 0;
}

.modal-details li strong {
    color: var(--text-primary);
    font-weight: 600;
    margin-right: 4px;
}

/* Modal CTA */
.modal-cta {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    width: 100%;
    padding: 18px 32px;
    background: var(--gradient-main);
    color: white;
    font-size: 1.05rem;
    font-weight: 600;
    border-radius: 12px;
    transition: all 0.3s ease;
    box-shadow: 0 4px 20px rgba(59, 130, 246, 0.3);
}

.modal-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(59, 130, 246, 0.5);
}

.modal-cta i {
    transition: transform 0.3s ease;
}

.modal-cta:hover i {
    transform: translateX(4px);
}

/* 하단 정보 영역 */
.program-info {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 40px;
    margin-top: 40px;
    padding: 32px 40px;
    background: var(--gradient-dark);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius-lg);
    flex-wrap: wrap;
}

.info-block {
    text-align: center;
}

.info-title {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.info-title i {
    color: var(--accent-primary);
}

.info-chips {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    justify-content: center;
}

.info-chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--glass-border);
    border-radius: 6px;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.info-chip i {
    color: var(--accent-secondary);
    font-size: 0.8rem;
}

.info-divider {
    width: 1px;
    height: 60px;
    background: var(--glass-border);
}

/* ========================================
   Program Cards - Mobile Responsive
   ======================================== */

/* Tablet: 2 columns */
@media (max-width: 1024px) {
    .program-cards {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }

    /* 5th card: same size as others on tablet */
    .program-card:nth-child(5) {
        grid-column: auto;
        max-width: 100%;
    }
}

/* Small tablet / large mobile */
@media (max-width: 768px) {
    .program-cards {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }

    .program-card {
        padding: 20px;
        min-height: 280px;
    }

    /* 5th card same as others on small tablet */
    .program-card:nth-child(5) {
        max-width: 100%;
        grid-column: auto;
    }

    .card-icon {
        width: 42px;
        height: 42px;
        font-size: 1.1rem;
        border-radius: 12px;
    }

    .card-title {
        font-size: 1.15rem;
    }

    .card-desc {
        font-size: 0.85rem;
        display: -webkit-box;
        -webkit-line-clamp: 3;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }

    .card-footer {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }

    .card-cta {
        opacity: 1;
        transform: translateX(0);
    }

    .card-badge {
        top: auto;
        bottom: 16px;
        right: 16px;
        font-size: 0.7rem;
        padding: 4px 10px;
    }

    /* Modal adjustments */
    .modal-content {
        width: 95%;
        max-height: 85vh;
    }

    .modal-body {
        padding: 28px 24px;
    }

    .modal-icon {
        width: 60px;
        height: 60px;
        font-size: 1.6rem;
    }

    .modal-title {
        font-size: 1.4rem;
    }

    .modal-meta {
        flex-direction: column;
        gap: 10px;
    }

    .meta-item {
        justify-content: center;
    }

    .program-info {
        flex-direction: column;
        gap: 24px;
        padding: 24px 20px;
    }

    .info-divider {
        width: 80%;
        height: 1px;
    }
}

/* Mobile: 1 column */
@media (max-width: 576px) {
    .section-hint {
        font-size: 0.8rem;
    }

    .program-cards {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .program-card {
        padding: 20px;
        min-height: auto;
    }

    .program-card:nth-child(5) {
        grid-column: auto;
    }

    .program-card:hover,
    .program-card:focus {
        transform: translateY(-4px);
    }

    .card-header {
        margin-bottom: 16px;
    }

    .card-icon {
        width: 40px;
        height: 40px;
        font-size: 1rem;
    }

    .program-card:hover .card-icon,
    .program-card:focus .card-icon {
        transform: scale(1.05);
    }

    .card-tag {
        font-size: 0.7rem;
        padding: 3px 8px;
    }

    .card-title {
        font-size: 1.1rem;
    }

    .card-title br {
        display: none;
    }

    .card-desc {
        font-size: 0.85rem;
        -webkit-line-clamp: 2;
    }

    .card-footer {
        padding-top: 16px;
    }

    .card-meta {
        gap: 12px;
    }

    .card-meta span {
        font-size: 0.75rem;
    }

    .card-badge {
        top: auto;
        bottom: 12px;
        right: 12px;
        font-size: 0.65rem;
        padding: 4px 8px;
    }

    /* Modal mobile */
    .modal-content {
        width: 100%;
        max-width: 100%;
        max-height: 100vh;
        border-radius: 0;
        border-radius: 20px 20px 0 0;
        margin-top: auto;
    }

    .program-modal {
        align-items: flex-end;
    }

    .program-modal.active .modal-content {
        transform: scale(1) translateY(0);
    }

    .modal-body {
        padding: 24px 20px 40px;
        max-height: 85vh;
    }

    .modal-close {
        top: 16px;
        right: 16px;
        width: 36px;
        height: 36px;
    }

    .modal-icon {
        width: 56px;
        height: 56px;
        font-size: 1.4rem;
        border-radius: 16px;
    }

    .modal-tag {
        font-size: 0.75rem;
        padding: 5px 12px;
    }

    .modal-title {
        font-size: 1.25rem;
    }

    .modal-desc {
        font-size: 0.9rem;
    }

    .modal-details {
        padding: 20px 16px;
    }

    .modal-details h4 {
        font-size: 0.9rem;
    }

    .modal-details li {
        font-size: 0.85rem;
        padding: 10px 0;
        gap: 10px;
    }

    .modal-cta {
        padding: 16px 24px;
        font-size: 1rem;
    }

    .info-chips {
        flex-direction: column;
    }

    .info-chip {
        justify-content: center;
    }
}

/* Very small mobile */
@media (max-width: 400px) {
    .program-card {
        padding: 16px;
    }

    .card-icon {
        width: 36px;
        height: 36px;
        font-size: 0.9rem;
        border-radius: 10px;
    }

    .card-title {
        font-size: 1rem;
    }

    .card-desc {
        font-size: 0.8rem;
    }

    .modal-body {
        padding: 20px 16px 36px;
    }

    .modal-icon {
        width: 48px;
        height: 48px;
        font-size: 1.2rem;
        border-radius: 14px;
    }

    .modal-title {
        font-size: 1.15rem;
    }
}

/* History Section (Showcase) */
.lecture-showcase {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), 1fr));
    gap: 30px;
    margin-bottom: 80px;
}

.showcase-image {
    position: relative;
    height: 240px;
    /* Increased height slightly */
    width: 100%;
    overflow: hidden;
    flex-shrink: 0;
    /* Prevent image shrinking */
}

.showcase-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

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

.showcase-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to bottom, transparent 0%, rgba(11, 15, 25, 0.8) 100%);
    opacity: 0.8;
}

.showcase-badge {
    position: absolute;
    top: 16px;
    right: 16px;
    background: var(--gradient-main);
    color: white;
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    z-index: 2;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.showcase-content {
    padding: 30px;
    position: relative;
    z-index: 2;
    flex-grow: 1;
    /* Allow content to grow */
    display: flex;
    flex-direction: column;
}

.showcase-title {
    font-size: 1.3rem;
    margin-bottom: 8px;
}

.showcase-client {
    color: var(--accent-primary);
    font-weight: 600;
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.95rem;
}

.showcase-date {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 16px;
}

.showcase-description {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
    margin-top: auto;
    /* Push to bottom if needed, or just let it flow */
}

/* Stats Section */
.stats-section {
    background: var(--gradient-dark);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--glass-border);
    padding: 60px;
    text-align: center;
    margin-bottom: 100px;
    position: relative;
    overflow: hidden;
}

.stats-section::before {
    content: '';
    position: absolute;
    top: -50%;
    left: 50%;
    transform: translateX(-50%);
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.08) 0%, transparent 60%);
    pointer-events: none;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 150px), 1fr));
    gap: 40px;
    margin-top: 50px;
    position: relative;
    z-index: 1;
}

.stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
    padding: 24px 16px;
    border-radius: var(--border-radius-md);
    transition: all 0.3s ease;
}

.stat-item:hover {
    background: rgba(255, 255, 255, 0.02);
    transform: translateY(-4px);
}

.stat-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.12) 0%, rgba(139, 92, 246, 0.08) 100%);
    border: 1px solid rgba(59, 130, 246, 0.15);
    border-radius: 14px;
    color: var(--accent-primary);
    transition: all 0.3s ease;
}

.stat-item:hover .stat-icon {
    transform: scale(1.1);
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.2) 0%, rgba(139, 92, 246, 0.15) 100%);
    box-shadow: 0 4px 16px rgba(59, 130, 246, 0.2);
}

.stat-number {
    font-size: 3.2rem;
    font-weight: 800;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    line-height: 1;
    letter-spacing: -1px;
}

.stat-label {
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 1rem;
    line-height: 1.4;
}

/* Profile Section */
.profile-section {
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
}

.profile-header {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 40px;
    margin-bottom: 60px;
    flex-wrap: wrap;
    text-align: left;
    /* Reset text align for header content */
}

.profile-photo {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    object-fit: cover;
}

.profile-intro {
    flex: 1;
    min-width: min(100%, 280px);
}

.profile-intro h3 {
    font-size: 2.5rem;
    margin-bottom: 8px;
}

.profile-role {
    font-size: 1.2rem;
    color: var(--accent-primary);
    font-weight: 600;
    margin-bottom: 12px;
}

.profile-description {
    color: var(--text-secondary);
    line-height: 1.6;
    font-size: 1.05rem;
}

.profile-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 180px), 1fr));
    gap: 30px;
    margin-top: 40px;
}

.profile-card {
    padding: 30px 20px;
    text-align: center;
}

.profile-card:hover {
    transform: translateY(-8px);
    border-color: rgba(139, 92, 246, 0.3);
}

.profile-icon {
    width: 64px;
    height: 64px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    margin-bottom: 20px;
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.12) 0%, rgba(59, 130, 246, 0.08) 100%);
    border: 1px solid rgba(139, 92, 246, 0.2);
    border-radius: 16px;
    color: var(--accent-secondary);
    transition: all 0.3s ease;
}

.profile-card:hover .profile-icon {
    transform: scale(1.1);
    background: var(--gradient-main);
    color: white;
    box-shadow: 0 8px 20px rgba(139, 92, 246, 0.3);
}

.profile-card h4 {
    font-size: 1.2rem;
    margin-bottom: 12px;
}

.profile-card p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Contact Section */
#contact {
    padding: 100px 0;
}

/* Contact Form */
.contact-form {
    max-width: 900px;
    margin: 50px auto 0;
    background: var(--gradient-dark);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius-lg);
    padding: 60px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    margin-bottom: 24px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    gap: 4px;
}

.form-group .required {
    color: var(--accent-secondary);
    font-size: 0.8rem;
}

.form-group input,
.form-group textarea {
    background: rgba(11, 15, 25, 0.8);
    border: 2px solid rgba(59, 130, 246, 0.15);
    border-radius: var(--border-radius-sm);
    padding: 16px 20px;
    color: var(--text-primary);
    font-family: var(--font-main);
    font-size: 1rem;
    transition: all 0.25s ease;
}

.form-group input:hover,
.form-group textarea:hover {
    border-color: rgba(59, 130, 246, 0.35);
    background: rgba(11, 15, 25, 0.9);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-primary);
    background: rgba(11, 15, 25, 0.95);
    box-shadow:
        0 0 0 4px rgba(59, 130, 246, 0.12),
        0 4px 16px rgba(59, 130, 246, 0.15),
        inset 0 1px 2px rgba(59, 130, 246, 0.1);
    transform: translateY(-2px);
}

.form-group input:focus-visible,
.form-group textarea:focus-visible {
    outline: 2px solid var(--accent-primary);
    outline-offset: 2px;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-muted);
}

.form-group textarea {
    resize: vertical;
    min-height: 140px;
}

.submit-btn {
    width: 100%;
    margin-top: 24px;
    padding: 20px;
    font-size: 1.125rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    letter-spacing: 0.5px;
}

.submit-btn i {
    transition: transform var(--transition-smooth);
    font-size: 1.125rem;
}

.submit-btn:hover i {
    transform: translateX(8px);
}

.submit-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

.submit-btn:disabled:hover {
    transform: none;
}

.form-message {
    margin-top: 24px;
    padding: 20px 24px;
    border-radius: var(--border-radius-md);
    text-align: center;
    font-weight: 600;
    font-size: 1rem;
    animation: slideDown 0.3s ease;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.form-message.success {
    background: linear-gradient(135deg, rgba(34, 197, 94, 0.15), rgba(34, 197, 94, 0.1));
    border: 2px solid rgba(34, 197, 94, 0.4);
    color: #22C55E;
    box-shadow: 0 4px 12px rgba(34, 197, 94, 0.2);
}

.form-message.error {
    background: linear-gradient(135deg, rgba(239, 68, 68, 0.15), rgba(239, 68, 68, 0.1));
    border: 2px solid rgba(239, 68, 68, 0.4);
    color: #EF4444;
    box-shadow: 0 4px 12px rgba(239, 68, 68, 0.2);
}

/* Footer */
footer {
    padding: 60px 0 40px 0;
    text-align: center;
    border-top: 1px solid var(--glass-border);
    color: var(--text-muted);
    font-size: 0.9rem;
    line-height: 1.8;
}

.footer-contact {
    display: flex;
    justify-content: center;
    gap: 32px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.footer-contact a {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--text-secondary);
    font-size: 0.95rem;
    transition: var(--transition-fast);
}

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

.footer-contact i {
    font-size: 1rem;
}

/* History Filters */
.history-filters {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-bottom: 50px;
    flex-wrap: wrap;
}

.filter-btn {
    background: transparent;
    border: 1px solid var(--glass-border);
    color: var(--text-secondary);
    padding: 10px 24px;
    border-radius: 50px;
    cursor: pointer;
    font-family: var(--font-main);
    font-weight: 600;
    font-size: 0.95rem;
    transition: var(--transition-fast);
}

.filter-btn:hover {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    border-color: rgba(255, 255, 255, 0.2);
}

.filter-btn.active {
    background: var(--gradient-main);
    color: white;
    border-color: transparent;
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.3);
}

/* Mobile Responsive */

/* Tablet and below */
@media (max-width: 768px) {
    .container {
        padding: 0 20px;
    }

    #hero {
        padding-top: calc(var(--header-height) + var(--safe-top) + 20px);
        padding-bottom: 40px;
        min-height: auto;
    }

    .hero-description {
        margin-bottom: 2rem;
    }

    .nav-links {
        position: fixed;
        top: 0;
        left: 100%;
        width: 100%;
        height: 100vh;
        background: rgba(11, 15, 25, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 32px;
        transition: left 0.4s ease;
        z-index: 999;
    }

    .nav-links.active {
        left: 0;
    }

    .nav-links a {
        font-size: 1.1rem;
    }

    .hamburger {
        display: block;
        cursor: pointer;
        z-index: 1001;
    }

    .hamburger .bar {
        display: block;
        width: 25px;
        height: 2px;
        background: var(--text-primary);
        margin: 6px 0;
        transition: 0.3s;
    }

    section {
        padding: 60px 0;
    }

    .section-header {
        margin-bottom: 40px;
    }

    .strength-card {
        padding: 30px 24px;
    }

    .strength-card:hover {
        transform: translateY(-8px);
    }

    .strength-icon {
        width: 64px;
        height: 64px;
        font-size: 1.75rem;
        border-radius: 14px;
    }

    .strength-card:hover .strength-icon {
        transform: scale(1.05) rotate(-2deg);
    }

    .tabs {
        gap: 12px;
    }

    .tab-btn {
        padding: 10px 20px;
        font-size: 0.9rem;
    }

    .program-header,
    .program-content {
        padding: 30px 24px;
    }

    .program-title {
        font-size: 1.4rem;
    }

    .program-meta {
        gap: 16px;
    }

    .stats-section {
        padding: 40px 24px;
    }

    .stats-section::before {
        width: 400px;
        height: 400px;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 24px;
    }

    .stat-item {
        padding: 16px 12px;
    }

    .stat-item:hover {
        transform: translateY(-2px);
    }

    .stat-icon {
        width: 48px;
        height: 48px;
        font-size: 1.25rem;
        border-radius: 12px;
    }

    .profile-header {
        flex-direction: column;
        text-align: center;
        gap: 24px;
    }

    .profile-intro {
        text-align: center;
    }

    .profile-intro h3 {
        font-size: 2rem;
    }

    .profile-card:hover {
        transform: translateY(-6px);
    }

    .profile-icon {
        width: 56px;
        height: 56px;
        font-size: 1.5rem;
        border-radius: 14px;
    }

    /* Section elements mobile */
    section:not(#hero)::before {
        width: 80px;
    }

    .section-tag {
        font-size: 0.75rem;
        padding: 5px 12px;
    }
}

/* Mobile devices */
@media (max-width: 576px) {
    .container {
        padding: 0 16px;
    }

    html {
        font-size: 15px;
    }

    .hero-title {
        font-size: clamp(1.5rem, 5vw, 2.5rem);
        line-height: 1.4;
        letter-spacing: -0.5px;
        margin-bottom: 1.5rem;
        word-break: break-word;
    }

    .hero-subtitle {
        font-size: 0.8rem;
        padding: 5px 12px;
    }

    .logo-slider-container {
        margin: 30px 0 50px;
    }

    .btn {
        padding: 14px 32px;
        font-size: 1rem;
    }

    .strengths-grid,
    .programs-grid,
    .lecture-showcase {
        grid-template-columns: 1fr;
    }

    .strength-card {
        padding: 24px 20px;
    }

    .strength-icon {
        width: 56px;
        height: 56px;
        font-size: 1.5rem;
        border-radius: 12px;
        margin-bottom: 20px;
    }

    .strength-card:hover .strength-icon {
        transform: scale(1.03);
    }

    .strength-title {
        font-size: 1.3rem;
    }

    .section-description {
        font-size: 1rem;
    }

    .tabs {
        flex-direction: column;
        width: 100%;
    }

    .tab-btn {
        width: 100%;
        justify-content: center;
    }

    .tab-btn i {
        margin-right: 8px;
    }

    .program-card {
        margin-bottom: 20px;
    }

    .showcase-content {
        padding: 24px 20px;
    }

    .showcase-title {
        font-size: 1.2rem;
    }

    .history-filters {
        gap: 10px;
    }

    .filter-btn {
        padding: 8px 18px;
        font-size: 0.85rem;
    }

    .stats-section {
        padding: 30px 20px;
    }

    .stats-section::before {
        width: 300px;
        height: 300px;
        top: -30%;
    }

    .stats-section h3 {
        font-size: 1.5rem;
    }

    .stat-item {
        padding: 12px 8px;
    }

    .stat-item:hover {
        transform: none;
        background: transparent;
    }

    .stat-icon {
        width: 44px;
        height: 44px;
        font-size: 1.1rem;
        border-radius: 10px;
    }

    .stat-item:hover .stat-icon {
        transform: none;
        box-shadow: none;
    }

    .stat-number {
        font-size: 2.5rem;
    }

    .stat-label {
        font-size: 0.9rem;
    }

    .profile-grid {
        grid-template-columns: 1fr;
    }

    .profile-card:hover {
        transform: translateY(-4px);
    }

    .profile-icon {
        width: 52px;
        height: 52px;
        font-size: 1.4rem;
        border-radius: 12px;
    }

    .profile-card:hover .profile-icon {
        transform: scale(1.05);
    }

    /* Section elements - smaller mobile */
    section:not(#hero)::before {
        width: 60px;
    }

    .section-tag {
        font-size: 0.7rem;
        padding: 4px 10px;
        letter-spacing: 2px;
    }

    .contact-content .section-description {
        font-size: 1rem;
        padding: 0 10px;
    }

    /* Optimize form inputs for mobile */
    .form-group input:focus,
    .form-group textarea:focus {
        transform: none;
        box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.12);
    }

    /* Reduce animations for better mobile performance */
    .btn:hover {
        transform: translateY(-2px);
        box-shadow: 0 6px 20px rgba(59, 130, 246, 0.4);
    }

    .btn:hover::before {
        opacity: 0;
    }

    /* Optimize hero for tablet/mobile */
    #hero::before {
        width: 800px;
        height: 800px;
        filter: blur(70px);
    }

    /* Reduce card hover effects on touch devices */
    .strength-card:hover,
    .profile-card:hover,
    .showcase-card:hover {
        transform: translateY(-6px);
        box-shadow: 0 16px 32px rgba(0, 0, 0, 0.3);
    }
}

/* Very small mobile devices */
@media (max-width: 400px) {
    .container {
        padding: 0 12px;
    }

    html {
        font-size: 14px;
    }

    .logo {
        font-size: 1.3rem;
    }

    .hero-title {
        font-size: clamp(1.3rem, 4.5vw, 2rem);
        line-height: 1.5;
        letter-spacing: -0.3px;
        margin-bottom: 1.2rem;
    }

    .hero-subtitle {
        font-size: 0.75rem;
        letter-spacing: 1.5px;
    }

    .btn {
        padding: 12px 24px;
        font-size: 0.95rem;
    }

    section {
        padding: 50px 0;
    }

    .section-tag {
        font-size: 0.7rem;
        letter-spacing: 1.5px;
        padding: 4px 8px;
    }

    section:not(#hero)::before {
        width: 40px;
    }

    .stats-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .stat-item {
        padding: 10px 6px;
        gap: 12px;
    }

    .stat-icon {
        width: 40px;
        height: 40px;
        font-size: 1rem;
        border-radius: 8px;
    }

    .stat-number {
        font-size: 2rem;
    }

    .stat-label {
        font-size: 0.85rem;
    }

    .program-header,
    .program-content {
        padding: 24px 16px;
    }

    .strength-card {
        padding: 20px 16px;
    }

    .strength-icon {
        width: 48px;
        height: 48px;
        font-size: 1.3rem;
        border-radius: 10px;
        margin-bottom: 16px;
    }

    .profile-icon {
        width: 48px;
        height: 48px;
        font-size: 1.25rem;
        border-radius: 10px;
    }

    .profile-photo {
        width: 120px;
        height: 120px;
    }

    .profile-intro h3 {
        font-size: 1.75rem;
    }

    .profile-role {
        font-size: 1.1rem;
    }

    .profile-description {
        font-size: 1rem;
    }

    #contact {
        padding: 60px 0;
    }

    .contact-form {
        padding: 32px 24px;
    }

    .form-row {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .form-group input,
    .form-group textarea {
        padding: 14px 16px;
        font-size: 0.95rem;
    }

    /* Disable transform on mobile for form inputs to prevent layout shift */
    .form-group input:focus,
    .form-group textarea:focus {
        transform: none;
        box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
    }

    .submit-btn {
        font-size: 1rem;
        padding: 18px;
    }

    /* Optimize CTA button for touch */
    .btn:hover {
        transform: none;
    }

    .btn:active {
        transform: scale(0.98);
    }

    /* Reduce hero glow for performance */
    #hero::before {
        width: 600px;
        height: 600px;
        filter: blur(60px);
        animation: none;
        opacity: 0.9;
    }

    #hero::after {
        display: none;
    }

    @keyframes heroGlow {
        0%, 100% { opacity: 0.9; transform: translateX(-50%) scale(1); }
    }
}

/* ========================================
   NEW SECTIONS - Program Guide, Benefits, Format, CTA
   ======================================== */

/* Program Selection Guide */
.program-guide {
    background: var(--gradient-dark);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius-lg);
    padding: 40px;
    margin-bottom: 50px;
}

.guide-title {
    font-size: 1.5rem;
    text-align: center;
    margin-bottom: 30px;
    color: var(--text-primary);
}

.guide-title i {
    color: var(--accent-primary);
    margin-right: 10px;
}

.guide-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), 1fr));
    gap: 16px;
}

.guide-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 20px;
    background: rgba(11, 15, 25, 0.6);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius-md);
    transition: var(--transition-fast);
}

.guide-item:hover {
    border-color: var(--accent-primary);
    background: rgba(59, 130, 246, 0.1);
}

.guide-question {
    flex: 1;
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.guide-item i {
    color: var(--accent-primary);
    font-size: 0.85rem;
}

.guide-answer {
    color: var(--accent-primary);
    font-weight: 600;
    font-size: 0.95rem;
    white-space: nowrap;
}

/* Program Benefits */
.program-benefits {
    background: var(--gradient-dark);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius-lg);
    padding: 50px 40px;
    margin-top: 50px;
    text-align: center;
}

.benefits-title {
    font-size: 1.4rem;
    margin-bottom: 40px;
    color: var(--text-primary);
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 200px), 1fr));
    gap: 30px;
}

.benefit-item {
    text-align: center;
}

.benefit-icon {
    font-size: 2.5rem;
    margin-bottom: 16px;
    background: var(--gradient-main);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.benefit-item h4 {
    font-size: 1.1rem;
    margin-bottom: 8px;
    color: var(--text-primary);
}

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

/* Program Format */
.program-format {
    margin-top: 40px;
    padding: 40px;
    background: rgba(11, 15, 25, 0.4);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius-lg);
}

.format-title {
    font-size: 1.3rem;
    text-align: center;
    margin-bottom: 30px;
    color: var(--text-primary);
}

.format-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 200px), 1fr));
    gap: 24px;
}

.format-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px;
    background: var(--gradient-dark);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius-md);
    transition: var(--transition-fast);
}

.format-item:hover {
    border-color: rgba(255, 255, 255, 0.2);
}

.format-item > i {
    font-size: 1.5rem;
    color: var(--accent-primary);
    width: 40px;
    text-align: center;
}

.format-content h4 {
    font-size: 1rem;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.format-content p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* CTA Banner Section */
#cta-banner {
    padding: 80px 0;
    background: linear-gradient(180deg, var(--bg-main) 0%, rgba(59, 130, 246, 0.05) 50%, var(--bg-main) 100%);
}

.cta-content {
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
}

.cta-title {
    font-size: clamp(1.5rem, 4vw, 2.2rem);
    margin-bottom: 16px;
    color: var(--text-primary);
}

.cta-description {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 32px;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
}

.btn-primary {
    background: var(--gradient-main);
    color: white;
}

.btn-secondary {
    background: transparent;
    border: 2px solid var(--accent-primary);
    color: var(--accent-primary);
    box-shadow: none;
}

.btn-secondary:hover {
    background: rgba(59, 130, 246, 0.1);
    box-shadow: 0 4px 20px rgba(59, 130, 246, 0.2);
}

/* Mobile Responsive for New Sections */
@media (max-width: 768px) {
    .program-guide {
        padding: 30px 24px;
    }

    .guide-title {
        font-size: 1.3rem;
    }

    .guide-item {
        flex-direction: column;
        text-align: center;
        gap: 8px;
    }

    .guide-question {
        flex: none;
    }

    .program-benefits {
        padding: 40px 24px;
    }

    .benefits-title {
        font-size: 1.2rem;
    }

    .program-format {
        padding: 30px 24px;
    }

    #cta-banner {
        padding: 60px 0;
    }

    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }

    .cta-buttons .btn {
        width: 100%;
        max-width: 300px;
    }
}

@media (max-width: 576px) {
    .guide-grid {
        grid-template-columns: 1fr;
    }

    .benefits-grid {
        grid-template-columns: 1fr;
    }

    .format-grid {
        grid-template-columns: 1fr;
    }

    .benefit-icon {
        font-size: 2rem;
    }

    .benefit-item h4 {
        font-size: 1rem;
    }

    .format-item {
        padding: 16px;
    }
}