:root {
    /* White/Light Theme Colors */
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;
    --bg-card: #ffffff;
    --accent-primary: #2563eb;
    --accent-secondary: #1d4ed8;
    --accent-glow: rgba(37, 99, 235, 0.2);
    --accent-warning: #ef4444;
    --accent-success: #10b981;
    --accent-gold: #f59e0b;
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #94a3b8;
    --border-color: #e2e8f0;
    --gradient-accent: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
    --gradient-gold: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    --gradient-dark: linear-gradient(180deg, #f8fafc 0%, #ffffff 100%);
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    --motion-ease-smooth: cubic-bezier(.22, 1, .36, 1); /* soft spring */
    --motion-duration-nav: 320ms;
    --motion-duration-item: 260ms;
    --motion-distance-xs: 4px;
}

/* ==============================
   Dark Theme Override
   ============================== */

[data-theme="dark"] {
    --bg-primary: #0a0e17;
    --bg-secondary: #0f1520;
    --bg-tertiary: #151c2c;
    --bg-card: rgba(21, 28, 44, 0.6);

    --accent-primary: #00d4ff;
    --accent-secondary: #0094b3;
    --accent-glow: rgba(0, 212, 255, 0.3);
    --accent-warning: #ff6b35;
    --accent-success: #00ff88;
    --accent-gold: #ffd700;
    --accent-purple: #a855f7;

    --text-primary: #ffffff;
    --text-secondary: #a0aec0;
    --text-muted: #64748b;

    --border-color: rgba(0, 212, 255, 0.15);

    --gradient-accent: linear-gradient(135deg, #00d4ff 0%, #0094b3 100%);
    --gradient-warning: linear-gradient(135deg, #ff6b35 0%, #ff4757 100%);
    --gradient-purple: linear-gradient(135deg, #a855f7 0%, #6366f1 100%);
    --gradient-gold: linear-gradient(135deg, #ffd700 0%, #ff8c00 100%);
    --gradient-dark: linear-gradient(180deg, #0a0e17 0%, #0f1520 100%);
}


/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-10px);
    }
}

.animate-fade-in {
    animation: fadeIn 0.8s ease;
}

.animate-fade-in-up {
    animation: fadeInUp 0.8s ease;
}

/* Announcement Banner */
.announcement {
    background: linear-gradient(90deg, #dbeafe 0%, #bfdbfe 100%);
    padding: 0.75rem 2rem;
    text-align: center;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1001;
}

/* .announcement-text {
    font-size: 0.85rem;
    color: var(--text-primary);
}

.announcement-text strong {
    color: var(--accent-primary);
    font-weight: 700;
} */

.announcement-close {
    position: absolute;
    right: 16px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: 0;
    cursor: pointer;
    font-size: 14px;
    color: #555;
}

.announcement-close:hover {
    color: #000;
}

/* Navigation */
.nav {
    position: fixed;
    top: var(--announcement-height, 0);
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 1rem 2rem;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    transition: all 0.3s ease;
    box-shadow: var(--shadow-sm);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
}

.nav-logo-icon {
    width: 135px;
    height: auto;
}

.nav-logo-icon img {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
    height: 100%;
}


.nav-logo-text {
    font-family: 'JetBrains Mono', monospace;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.5px;
}

.nav-links {
    display: flex;
    gap: 5rem;
    list-style: none;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 1.3rem;
    transition: color 0.3s ease;
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-primary);
    transition: width 0.3s ease;
}

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

/* underline 효과도 동일 */
.nav-links a:hover::after,
.nav-links a.active::after {
    width: 100%;
}

.nav-actions {
    display: flex;
    gap: 0.6rem;
    align-items: center;
}

.nav-content {
    display: flex;
    gap: 10px;
}

.nav-lang {
    position: relative;
    display: inline-block;
}

.nav-lang-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    background: none;
    border: 0;
    color: var(--text-secondary);
    font-size: 0.92rem;
    cursor: pointer;
    padding: 0.7rem;
}

.nav-lang-current {
    font-size: 1rem;
    line-height: 1;
    font-weight: 500;
}


.nav-lang-dropdown {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    min-width: 64px;
    padding: 6px 0;
    background: #fff;
    border: 1px solid #e5e7eb;
    border-radius: 8px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, .08);
    list-style: none;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-4px);
    transition: all .2s ease;
    z-index: 100;
}

.nav-lang-dropdown li {
    padding: 8px 12px;
    font-size: 14px;
    cursor: pointer;
}

.nav-lang-dropdown li:hover {
    background: #f5f7fa;
}

.nav-lang.is-open .nav-lang-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}


.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0.5rem 0.4rem;
}

/* Buttons */
.btn {
    padding: 0.5rem 1.5rem;
    border-radius: 8px;
    font-weight: 700;
    font-size: 0.9rem;
    text-decoration: none;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-family: 'Outfit', sans-serif;
}

.mobile-lang {
    display: none;
}

.btn-ghost {
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
}

.btn-ghost:hover {
    color: var(--accent-primary);
    border-color: var(--accent-primary);
    background: #eff6ff;
}

.btn-primary {
    background: var(--gradient-accent);
    color: #ffffff;
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(37, 99, 235, 0.4);
}

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

.btn-outline:hover {
    background: #eff6ff;
    transform: translateY(-2px);
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1rem;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    padding: 10rem 2rem 4rem;
    overflow: hidden;
    background: linear-gradient(180deg, #f8fafc 0%, #ffffff 100%);
}

.hero-bg {
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse 80% 50% at 50% -20%, rgba(37, 99, 235, 0.08) 0%, transparent 50%),
    radial-gradient(ellipse 60% 40% at 80% 60%, rgba(59, 130, 246, 0.05) 0%, transparent 40%);
    pointer-events: none;
}

.hero-grid {
    position: absolute;
    inset: 0;
    background-image: linear-gradient(rgba(37, 99, 235, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(37, 99, 235, 0.05) 1px, transparent 1px);
    background-size: 80px 80px;
    mask-image: radial-gradient(ellipse 70% 70% at 50% 30%, black 0%, transparent 70%);
}

.hero--center, .hero--split {
    margin: 0 auto;
}

.hero-container {
    width: 100%;
    position: relative;
    z-index: 1;
}

.hero--split .hero-container {
    max-width: 1400px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    text-align: left;
}

.hero--center .hero-container {
    max-width: 1200px;
    text-align: center;
}

.hero-content {
    max-width: 700px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.6rem 1.25rem;
    background: #eff6ff;
    border: 1px solid #bfdbfe;
    border-radius: 100px;
    font-size: 0.85rem;
    color: var(--accent-primary);
    margin-bottom: 1.5rem;
}

.hero-badge i {
    font-size: 1rem;
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 1.5rem;
    letter-spacing: -0.03em;
    color: var(--text-primary);
}

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

.hero-subtitle {
    font-size: 1.15rem;
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
    line-height: 1.8;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 4rem;
}

.hero--center .hero-actions {
    justify-content: center;
}

.hero-trust {
    display: flex;
    gap: 2rem;
    flex-wrap: wrap;
}

.trust-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.trust-item i {
    color: var(--accent-success);
    font-size: 1rem;
}

.hero-visual {
    position: relative;
    animation: float 6s ease-in-out infinite;
}

.compliance-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 2.5rem;
    box-shadow: var(--shadow-xl);
}


.compliance-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 2rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

.compliance-icon {
    width: 56px;
    height: 56px;
    background: #d1fae5;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--accent-success);
}

.compliance-title {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
    color: var(--text-primary);
}

.compliance-subtitle {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.compliance-items {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.compliance-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 1.25rem;
    background: #f8fafc;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    transition: all 0.3s ease;
}

.compliance-item:hover {
    border-color: var(--accent-primary);
    background: #eff6ff;
    transform: translateX(5px);
}

.compliance-item-icon {
    width: 36px;
    height: 36px;
    background: #d1fae5;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-success);
    font-size: 0.9rem;
}

.compliance-item-text {
    flex: 1;
}

.compliance-item-label {
    font-size: 0.95rem;
    font-weight: 500;
    margin-bottom: 0.25rem;
    color: var(--text-primary);
}

.compliance-item-desc {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* Stats Section */
.stats-section {
    padding: 4rem 2rem;
    background: var(--bg-secondary);
    position: relative;
    overflow: hidden;
}

.stats-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse 80% 50% at 50% 50%, rgba(37, 99, 235, 0.03) 0%, transparent 60%);
    pointer-events: none;
}

.stats-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 2rem;
    position: relative;
    z-index: 1;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 2rem;
    text-align: center;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--gradient-accent);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.stat-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-primary);
    box-shadow: 0 10px 30px rgba(37, 99, 235, 0.15);
}

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

.stat-icon {
    width: 64px;
    height: 64px;
    background: #dbeafe;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.8rem;
    font-size: 1.75rem;
    color: var(--accent-primary);
}

.stat-number {
    font-size: 3rem;
    font-weight: 800;
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: 1.7rem;
}

.stat-label {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 0.4rem;
    color: var(--text-primary);
}

.stat-desc {
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* Section Styles */
section {
    padding: 6rem 2rem;
    position: relative;
}

.section-header {
    text-align: center;
    max-width: 860px;
    margin: 0 auto 4rem;
}

.section-label {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.85rem;
    color: var(--accent-primary);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 1rem;
    font-weight: 700;
}

.section-title {
    font-size: clamp(2rem, 4vw, 2.75rem);
    font-weight: 700;
    margin-bottom: 1rem;
    letter-spacing: -0.02em;
    color: var(--text-primary);
}

.section-desc {
    font-size: 1.1rem;
    color: var(--text-secondary);
    line-height: 1.8;
    word-wrap: break-word;
}

/* Why SecuAI Section */
.why-section {
    background: var(--bg-secondary);
}

.why-grid {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.why-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 2.45rem;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.why-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--gradient-accent);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.why-card:hover {
    transform: translateY(-6px);
    border-color: var(--accent-primary);
    box-shadow: 0 15px 40px rgba(37, 99, 235, 0.15);
}

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

.why-icon {
    width: 64px;
    height: 64px;
    background: #dbeafe;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    color: var(--accent-primary);
    margin-bottom: 1.5rem;
}

.why-title {
    font-size: 1.35rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.why-desc {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

.why-features {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.why-features li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 0.9rem;
    color: var(--text-secondary);
    padding: 0.5rem 0.75rem;
    background: #f8fafc;
    border-radius: 8px;
}

.why-features li i {
    color: var(--accent-success);
    font-size: 0.8rem;
}

/* Guideline Section */
.guideline-section {
    background: #ffffff;
}

.guideline-container {
    max-width: 1200px;
    margin: 0 auto;
}

.guideline-visual {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: start;
}

.guideline-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    overflow: hidden;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-md);
}

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

.guideline-card-header {
    padding: 1.5rem 2rem;
    background: #f8fafc;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 1rem;
}

.guideline-card-icon {
    width: 48px;
    height: 48px;
    background: var(--gradient-accent);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ffffff;
    font-size: 1.25rem;
}

.guideline-card-title {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--text-primary);
}

.guideline-card-subtitle {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.guideline-card-body {
    padding: 1.4rem 2rem;
}

.guideline-list {
    list-style: none;
}

.guideline-list li {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1rem 0;
    border-bottom: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.guideline-list li:hover {
    padding-left: 0.5rem;
    background: #f8fafc;
    border-radius: 8px;
}

.guideline-list li:last-child {
    border-bottom: none;
}

.guideline-check {
    width: 24px;
    height: 24px;
    background: #d1fae5;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-success);
    font-size: 0.75rem;
    flex-shrink: 0;
    margin-top: 2px;
}

.guideline-text {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Lifecycle Section */
.lifecycle-section {
    background: var(--bg-secondary);
}

.lifecycle-container {
    max-width: 1100px;
    margin: 0 auto;
}

.lifecycle-flow {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.lifecycle-step {
    flex: 1;
    text-align: center;
    position: relative;
    min-width: 140px;
}

.lifecycle-step::after {
    content: '→';
    position: absolute;
    top: 28px;
    right: -30px;
    font-size: 1.5rem;
    color: var(--accent-primary);
    opacity: 0.3;
}

.lifecycle-step:last-child::after {
    display: none;
}

.lifecycle-icon {
    width: 56px;
    height: 56px;
    background: var(--bg-card);
    border: 2px solid var(--accent-primary);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    font-size: 1.25rem;
    color: var(--accent-primary);
    position: relative;
    z-index: 1;
    transition: all 0.3s ease;
}

.lifecycle-step:hover .lifecycle-icon {
    transform: scale(1.1);
    box-shadow: 0 8px 20px rgba(37, 99, 235, 0.3);
}

.lifecycle-label {
    font-size: 0.95rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
    color: var(--text-primary);
}

.lifecycle-desc {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.lifecycle-detail {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 2.5rem;
    box-shadow: var(--shadow-md);
}

.lifecycle-detail-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--text-primary);
}

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

.lifecycle-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}

.lifecycle-feature {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1.5rem;
    background: #f8fafc;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    transition: all 0.3s ease;
}

.lifecycle-feature:hover {
    background: #eff6ff;
    border-color: var(--accent-primary);
    transform: translateY(-3px);
}

.lifecycle-feature-icon {
    width: 40px;
    height: 40px;
    background: #dbeafe;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-primary);
    flex-shrink: 0;
    font-size: 1.1rem;
}

.lifecycle-feature-text strong {
    display: block;
    font-size: 0.95rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.lifecycle-feature-text p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Target Section */
.target-section {
    background: #ffffff;
}

.target-grid {
    max-width: 1100px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.target-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 2rem;
    text-align: center;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.target-card::before {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: var(--gradient-accent);
    border-radius: 16px;
    opacity: 0;
    z-index: -1;
    transition: opacity 0.3s ease;
}

.target-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 6px 16px rgba(37, 99, 235, 0.10);
}

.target-card:hover::before {
    opacity: 0.1;
}

.target-icon {
    width: 72px;
    height: 72px;
    background: #dbeafe;
    border-radius: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    font-size: 2rem;
    color: var(--accent-primary);
    transition: all 0.3s ease;
}

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

.target-title {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.target-desc {
    font-size: 0.9rem;
    color: var(--text-muted);
    line-height: 1.6;
    margin-bottom: 1rem;
}

.target-badge {
    display: inline-block;
    padding: 0.4rem 0.8rem;
    background: #eff6ff;
    border: 1px solid var(--accent-primary);
    border-radius: 100px;
    font-size: 0.75rem;
    color: var(--accent-primary);
    font-weight: 700;
}

/* CTA Section */
.cta-section {
    background: var(--bg-secondary);
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse 60% 60% at 50% 100%, rgba(37, 99, 235, 0.05) 0%, transparent 60%);
    pointer-events: none;
}

.cta-container {
    max-width: 900px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.cta-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    padding: 4rem;
    text-align: center;
    box-shadow: var(--shadow-xl);
}

.cta-title {
    font-size: clamp(1.75rem, 3vw, 2.25rem);
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.cta-desc {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.8;
}

.cta-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 2rem;
}

.cta-contact {
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
}

.cta-contact-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.95rem;
    transition: all 0.3s ease;
}

.cta-contact-item:hover {
    color: var(--accent-primary);
    transform: translateY(-2px);
}

.cta-contact-item i {
    font-size: 1.1rem;
    color: var(--accent-primary);
}

/* Footer */
.footer {
    background: #ffffff;
    padding: 4rem 2rem 2rem;
    border-top: 1px solid var(--border-color);
}

.footer a,
.footer li {
    line-height: 1;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 1rem;
    margin-bottom: 3rem;
}

.footer-brand .footer-logo {
    width: 120px;
    height: auto;
}

.footer-brand .footer-logo img {
    width: 100%;
    height: 100%;
}

.footer-brand p {
    font-size: 0.9rem;
    color: var(--text-muted);
    line-height: 1.7;
    max-width: 320px;
}

.footer-col h4 {
    font-size: 0.95rem;
    font-weight: 700;
    margin-bottom: 1.25rem;
    color: var(--text-primary);
}

.footer-col ul {
    list-style: none;
}

.footer-col li {
    margin-bottom: 0.75rem;
}

.footer-col a {
    font-size: 0.9rem;
    color: var(--text-muted);
    text-decoration: none;
    transition: color 0.3s ease;
}

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

.footer-bottom {
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-bottom p {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.footer-certifications {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.footer-cert {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.7rem;
    padding: 0.5rem 1rem;
    background: #eff6ff;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--accent-primary);
    display: block;
}


/* ========================= */
/* V3 Extensions (Merged) */
/* ========================= */

/* Hero Stats for V3 */
.hero-stats {
    display: flex;
    justify-content: center;
    gap: 4rem;
    padding-top: 3.2rem;
    border-top: 1px solid var(--border-color);
    animation: fadeInUp 0.8s ease 0.4s both;
}

.hero-stat {
    text-align: center;
}

.hero-stat-icon {
    width: 72px;
    height: 72px;
    background: #dbeafe;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.4rem;
    font-size: 1.6rem;
    color: var(--accent-primary);
}

.hero-stat-number {
    font-size: 2.8rem;
    font-weight: 700;
    margin-bottom: 0.8rem;
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-stat-label {
    font-size: 1rem;
    color: var(--text-muted);
}

.hero-badge-dot {
    width: 8px;
    height: 8px;
    background: var(--accent-success);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

/* Threat Section */
.threat-section {
    background: var(--bg-secondary);
}

.threat-intro {
    max-width: 1000px;
    margin: 0 auto 4rem;
    text-align: center;
}

.threat-intro-text {
    font-size: 1.15rem;
    color: var(--text-secondary);
    line-height: 1.9;
}

.threat-intro-text strong {
    color: var(--accent-warning);
    font-weight: 700;
}

.threat-grid {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 1.5rem;
}

.threat-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 2.5rem;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.threat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--gradient-warning);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.threat-card:hover {
    transform: translateY(-8px);
    border-color: var(--accent-warning);
    box-shadow: 0 20px 50px rgba(239, 68, 68, 0.15);
}

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

.threat-card.quantum::before {
    background: var(--gradient-purple);
}

.threat-card.quantum:hover {
    border-color: var(--accent-purple);
    box-shadow: 0 20px 50px rgba(139, 92, 246, 0.15);
}

.threat-icon {
    width: 64px;
    height: 64px;
    background: #fee2e2;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    color: var(--accent-warning);
    margin-bottom: 1.5rem;
}

.threat-card.quantum .threat-icon {
    background: #fee2e2;
    color: var(--accent-purple);
}

.threat-title {
    font-size: 1.35rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.threat-desc {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.8;
}

/* Timeline Section */
.why-now-section {
    background: #ffffff;
    position: relative;
    overflow: hidden;
}

.why-now-section::before {
    content: '';
    position: absolute;
    top: 15%;
    left: 50%;
    transform: translateX(-50%);
    width: 2px;
    height: 85%;
    background: linear-gradient(180deg, transparent 0%, var(--accent-primary) 15%, var(--accent-primary) 85%, transparent 100%);
    opacity: 0.3;
}

.timeline {
    max-width: 900px;
    margin: 0 auto;
    position: relative;
}

.timeline-item {
    display: flex;
    gap: 3rem;
    margin-bottom: 4rem;
    position: relative;
}

.timeline-item:nth-child(even) {
    flex-direction: row-reverse;
}

.timeline-item:nth-child(even) .timeline-content {
    text-align: right;
}

.timeline-content {
    flex: 1;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 2rem;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-sm);
}

.timeline-content:hover {
    border-color: var(--accent-primary);
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(37, 99, 235, 0.15);
}

.timeline-year {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.85rem;
    color: var(--accent-primary);
    margin-bottom: 0.5rem;
    font-weight: 700;
}

.timeline-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.timeline-desc {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

.timeline-dot {
    width: 16px;
    height: 16px;
    background: var(--accent-primary);
    border-radius: 50%;
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    top: 2rem;
    box-shadow: 0 0 20px rgba(37, 99, 235, 0.5);
    z-index: 1;
}

/* Solution Section */
.solution-section {
    background: var(--bg-secondary);
}

.solution-container {
    max-width: 1200px;
    margin: 0 auto;
}

.solution-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.solution-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 2.5rem;
    text-align: center;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.solution-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--gradient-accent);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.solution-card:hover {
    transform: translateY(-8px);
    border-color: var(--accent-primary);
    box-shadow: 0 20px 50px rgba(37, 99, 235, 0.15);
}

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

.solution-number {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    font-family: 'JetBrains Mono', monospace;
    font-size: 2rem;
    font-weight: 700;
    color: var(--border-color);
}

.solution-icon {
    width: 72px;
    height: 72px;
    background: #dbeafe;
    border-radius: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    font-size: 2rem;
    color: var(--accent-primary);
}

.solution-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.solution-desc {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* Compliance Section */
.compliance-section {
    background: #ffffff;
}

.compliance-container {
    max-width: 1100px;
    margin: 0 auto;
}

.compliance-card.split-layout {
    border-radius: 24px;
    padding: 3rem;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.compliance-content h3 {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.compliance-content p {
    font-size: 1.05rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

.compliance-list {
    list-style: none;
}

.compliance-list li {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.75rem 0;
    font-size: 0.95rem;
    color: var(--text-secondary);
}

.compliance-list li i {
    color: var(--accent-success);
    font-size: 1rem;
}

.compliance-visual {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.compliance-badge {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.25rem 1.5rem;
    background: #f8fafc;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    transition: all 0.3s ease;
}

.compliance-badge:hover {
    border-color: var(--accent-primary);
    background: #eff6ff;
    transform: translateX(5px);
}

.compliance-badge-icon {
    width: 48px;
    height: 48px;
    background: #d1fae5;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-success);
    font-size: 1.25rem;
}

.compliance-badge-text {
    flex: 1;
}

.compliance-badge-title {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
    color: var(--text-primary);
}

.compliance-badge-desc {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* Architecture Section */
.architecture-section {
    background: var(--bg-secondary);
}

.arch-container {
    max-width: 1200px;
    margin: 0 auto;
}

.arch-visual {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.arch-component {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 2rem;
    text-align: center;
    transition: all 0.3s ease;
    position: relative;
}

.arch-component::after {
    content: '→';
    position: absolute;
    right: -1.2rem;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1.5rem;
    color: var(--accent-primary);
    opacity: 0.3;
}

.arch-component:last-child::after {
    display: none;
}

.arch-component:hover {
    border-color: var(--accent-primary);
    transform: translateY(-4px);
}

.arch-icon {
    width: 56px;
    height: 56px;
    background: #dbeafe;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    font-size: 1.5rem;
    color: var(--accent-primary);
}

.arch-title {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.arch-desc {
    font-size: 0.85rem;
    color: var(--text-muted);
    line-height: 1.6;
}

.arch-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 1.5rem;
}

.arch-feature {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1.5rem;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    transition: all 0.3s ease;
}

.arch-feature:hover {
    border-color: var(--accent-primary);
    background: #f8fafc;
    transform: translateY(-3px);
}

.arch-feature-icon {
    width: 40px;
    height: 40px;
    background: #dbeafe;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-primary);
    flex-shrink: 0;
}

.arch-feature-text h4 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
    color: var(--text-primary);
}

.arch-feature-text p {
    font-size: 0.85rem;
    color: var(--text-muted);
    line-height: 1.6;
}


/* Responsive Design */
@media (max-width: 1024px) {
    .nav-logo-icon {
        width: 102px;
        height: auto;
    }

    .nav-links a {
        font-size: 1rem;
    }

    .announcement-text {
        font-size: 0.9rem;
    }

    .hero--split .hero-container {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .guideline-visual {
        grid-template-columns: 1fr;
    }

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

    .lifecycle-flow {
        justify-content: center;
    }

    .lifecycle-step::after {
        display: none;
    }

    .footer {
        padding: 2.4rem 2rem 2rem 2rem;
    }

    .footer-logo {
        width: 102px;
        height: auto;
    }
}

@media (max-width: 768px) {
    .nav {
        padding: 0.6rem 1.6rem;
    }

    .nav-actions > .btn {
        padding: 0.4rem 1.2rem;
        font-size: 0.875rem;
    }

    .nav-content {
        display: flex;
        gap: 8px;
    }

    /* Mobile Nav Container */
        .nav-links {
            position: absolute;
            top: 100%;
            height: calc(100dvh - var(--nav-total-height, 69px));
            left: 0;
            right: 0;
            background: rgba(248, 250, 252, .95);
            flex-direction: column;
            align-items: flex-end;
            padding: 1rem 2rem;
            border-top: 1px solid var(--border-color);
            box-shadow: 0 12px 30px rgba(0, 0, 0, .08);
            opacity: 0;
            visibility: hidden;
            pointer-events: none;
            transform-origin: top center;
            gap: 0;
        }

    /* ===== Nav container OPEN ===== */
    .nav-links.active {
        display: flex;
        opacity: 1;
        visibility: visible;
        pointer-events: auto;

        animation: nav-enter var(--motion-duration-fast) var(--motion-ease-out) both;
    }

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

    /* ===== Nav items base ===== */
    .nav-links li {
        opacity: 0;
        transform: translateY(6px);
        padding: 0.75rem 0;
    }

    /* ===== Nav items stagger enter ===== */
    .nav-links.active li {
        animation: nav-item-enter 220ms cubic-bezier(.16, 1, .3, 1) forwards;
    }

    .nav-links.active li:nth-child(1) {
        animation-delay: 60ms;
    }

    .nav-links.active li:nth-child(2) {
        animation-delay: 120ms;
    }

    .nav-links.active li:nth-child(3) {
        animation-delay: 180ms;
    }

    .nav-links.active li:nth-child(4) {
        animation-delay: 240ms;
    }

    .nav-links a {
        font-size: 1.075rem;
    }

    .nav-links a::after {
        display: none;
    }

    .nav-lang {
        display: none;
    }

    .nav-links .mobile-lang {
        margin-top: auto;
        padding: 24px 0;
    }

    .mobile-lang-tabs {
        display: flex;
        gap: 24px;
        color: var(--text-muted);
    }

    .mobile-lang-tabs button {
        font-size: 17px;
        font-weight: 600;
        background: none;
        border: 0;
        padding: 0;
        cursor: pointer;
        pointer-events: auto;
        color: inherit;
    }

    .mobile-lang-tabs button.is-active {
        position: relative;
        color: var(--text-primary);
    }

    .mobile-lang-tabs button.is-active::after {
        position: absolute;
        bottom: -8px;
        left: 0;
        width: 100%;
        height: 4px;
        background-color: var(--text-primary);
        content: "";
    }

    .mobile-menu-btn {
        width: 32px;
    }

    .mobile-menu-btn, .nav-lang-btn {
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .mobile-menu-btn i {
        font-size: 1.365rem;
    }

    .nav-lang-btn i {
        font-size: 1.125rem;
    }

    .hero {
        padding-top: 8rem;
    }

    .hero-badge {
        margin-top: 3rem;
    }

    .hero-actions {
        flex-direction: column;
    }

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

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

    .stat-card {
        padding: 1.5rem;
    }

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

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

    .lifecycle-flow {
        flex-direction: column;
    }

    .lifecycle-features {
        grid-template-columns: 1fr;
    }

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

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
        margin-bottom: 1.2rem;
    }

    .footer-bottom {
        flex-direction: column-reverse;
        text-align: center;
        align-items: flex-start;
        gap: 1.2rem;
    }

    .cta-card {
        padding: 2.5rem 1.5rem;
    }

    .cta-actions {
        flex-direction: column;
    }

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

    section {
        padding: 4rem 1.5rem;
    }

    .footer-col:not(.mobile-footer) {
        display: none;
    }
}

@keyframes fade-in {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes fade-out {
    from {
        opacity: 1;
    }
    to {
        opacity: 0;
    }
}

@keyframes zoom-in {
    from {
        transform: scale(var(--motion-scale-from));
    }
    to {
        transform: scale(1);
    }
}

@keyframes zoom-out {
    from {
        transform: scale(1);
    }
    to {
        transform: scale(var(--motion-scale-from));
    }
}

@keyframes slide-in-from-top {
    from {
        transform: translateY(calc(var(--motion-distance-sm) * -1));
    }
    to {
        transform: translateY(0);
    }
}

@keyframes nav-item-enter {
    from {
        opacity: 0;
        transform: translateY(6px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (max-width: 570px) {
    .lifecycle-detail-title {
        align-items: flex-start;
    }

    .lifecycle-detail-title i {
        padding-top: 0.375rem;

    }
}


@media (max-width: 480px) {
    .stats-container {
        grid-template-columns: 1fr;
    }

    .announcement {
        text-align: left;
        padding: 0.5rem 0.8rem;
    }

    .announcement-text {
        font-size: 0.75rem;
    }

    .nav {
        padding: 0.75rem 1rem;
    }


    .nav-logo-icon, .footer-brand .footer-logo {
        width: 90px;
    }

    .footer-certifications {
        gap: 1rem
    }
    .footer-cert {
        text-align: left;
        line-height: 1.4;
    }
}

@media (max-width: 1024px) {
    .compliance-card.split-layout {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .arch-visual {
        grid-template-columns: repeat(2, 1fr);
    }

    .arch-component::after {
        display: none;
    }

    .timeline-item {
        flex-direction: column !important;
        text-align: left !important;
    }

    .timeline-item:nth-child(even) .timeline-content {
        text-align: left;
    }

    .timeline-dot {
        left: -8px;
        transform: none;
    }

    .why-now-section::before {
        left: 0;
        transform: none;
    }
}

@media (max-width: 768px) {
    .hero-stats {
        flex-direction: column;
        gap: 2rem;
    }

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

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

    .arch-visual {
        grid-template-columns: 1fr;
    }

    .arch-features {
        grid-template-columns: 1fr;
    }

    .nav-links .mobile-lang {
        margin-top: auto;
        padding: 24px 0;
        display: block;
    }
}

@media (max-width: 480px) {
    .compliance-card.split-layout {
        padding: 2rem;
    }

    
}