/* ========================================
   Oniturm Software — Design System & Styles
   ======================================== */

/* --- Design Tokens --- */
:root {
    /* Colors */
    --navy:       #0A1628;
    --navy-light: #0F1F38;
    --navy-mid:   #1A2D4A;
    --accent:     #0D9488;
    --accent-hover: #0F766E;
    --accent-glow: rgba(13, 148, 136, 0.15);
    --cream:      #F8F7F3;
    --cream-dark: #EFEDE6;
    --gray-100:   #F3F4F6;
    --gray-200:   #E5E7EB;
    --gray-300:   #D1D5DB;
    --gray-400:   #9CA3AF;
    --gray-500:   #6B7280;
    --gray-600:   #4B5563;
    --gray-700:   #374151;
    --gray-800:   #1F2937;
    --gray-900:   #111827;
    --white:      #FFFFFF;

    /* Typography */
    --font-serif:  'Source Serif 4', 'Georgia', serif;
    --font-sans:   'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

    /* Spacing */
    --space-xs:   0.5rem;
    --space-sm:   1rem;
    --space-md:   1.5rem;
    --space-lg:   2.5rem;
    --space-xl:   4rem;
    --space-2xl:  6rem;
    --space-3xl:  8rem;

    /* Borders */
    --radius-sm:  6px;
    --radius-md:  10px;
    --radius-lg:  16px;
    --radius-xl:  24px;

    /* Shadows */
    --shadow-sm:  0 1px 2px rgba(0,0,0,0.04), 0 1px 3px rgba(0,0,0,0.06);
    --shadow-md:  0 4px 6px rgba(0,0,0,0.04), 0 2px 4px rgba(0,0,0,0.06);
    --shadow-lg:  0 10px 15px rgba(0,0,0,0.05), 0 4px 6px rgba(0,0,0,0.05);
    --shadow-xl:  0 20px 25px rgba(0,0,0,0.06), 0 8px 10px rgba(0,0,0,0.04);

    /* Transitions */
    --ease:       cubic-bezier(0.4, 0, 0.2, 1);
    --duration:   0.3s;
}

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

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.6;
    color: var(--gray-800);
    background-color: var(--cream);
    overflow-x: hidden;
}

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

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-md);
}

/* --- Navbar --- */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: var(--space-sm) 0;
    transition: all var(--duration) var(--ease);
    background: transparent;
}

.navbar.scrolled {
    background: rgba(248, 247, 243, 0.92);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(0,0,0,0.06);
    padding: 0.65rem 0;
}

/* Default (dark hero) state — white text */
.navbar:not(.scrolled) .logo-text {
    color: var(--white);
}

.navbar:not(.scrolled) .logo-mark {
    color: var(--white);
}

.navbar:not(.scrolled) .nav-link {
    color: rgba(255, 255, 255, 0.75);
}

.navbar:not(.scrolled) .nav-link:hover {
    color: var(--white);
}

.navbar:not(.scrolled) .nav-btn {
    background: rgba(255, 255, 255, 0.12);
    color: var(--white);
    border: 1px solid rgba(255, 255, 255, 0.25);
}

.navbar:not(.scrolled) .nav-btn:hover {
    background: rgba(255, 255, 255, 0.22);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-md);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

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

.logo-mark {
    width: 32px;
    height: 32px;
    color: var(--navy);
}

.logo-text {
    font-family: var(--font-sans);
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--navy);
    letter-spacing: -0.02em;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
}

.nav-link {
    font-size: 0.925rem;
    font-weight: 500;
    color: var(--gray-600);
    position: relative;
}

.nav-link:hover {
    color: var(--navy);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent);
    transition: width var(--duration) var(--ease);
}

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

.nav-btn {
    display: inline-flex;
    align-items: center;
    padding: 0.6rem 1.4rem;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--white);
    background: var(--navy);
    border-radius: var(--radius-sm);
    transition: all var(--duration) var(--ease);
}

.nav-btn:hover {
    background: var(--navy-light);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.nav-toggle span {
    width: 22px;
    height: 2px;
    background: var(--navy);
    border-radius: 2px;
    transition: all var(--duration) var(--ease);
}

.navbar:not(.scrolled) .nav-toggle span {
    background: var(--white);
}

/* --- Hero --- */
.hero {
    position: relative;
    padding: calc(var(--space-3xl) + 60px) 0 var(--space-3xl);
    background: var(--navy);
    color: var(--white);
    overflow: hidden;
}

.hero-bg-grid {
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse 80% 70% at 50% 40%, black 30%, transparent 70%);
    -webkit-mask-image: radial-gradient(ellipse 80% 70% at 50% 40%, black 30%, transparent 70%);
}

.hero::before {
    content: '';
    position: absolute;
    top: -200px;
    right: -200px;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    background: radial-gradient(circle, var(--accent-glow) 0%, transparent 60%);
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    padding: 0.4rem 1rem;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--accent);
    border: 1px solid rgba(13, 148, 136, 0.3);
    border-radius: 100px;
    margin-bottom: var(--space-lg);
    background: rgba(13, 148, 136, 0.08);
}

.hero-title {
    font-family: var(--font-serif);
    font-size: clamp(2.2rem, 5vw, 3.5rem);
    font-weight: 700;
    line-height: 1.15;
    letter-spacing: -0.02em;
    margin-bottom: var(--space-md);
    color: var(--white);
}

.text-gradient {
    background: linear-gradient(135deg, var(--accent), #5EEAD4);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.1rem;
    line-height: 1.7;
    color: rgba(255,255,255,0.65);
    max-width: 640px;
    margin: 0 auto var(--space-xl);
}

.hero-actions {
    display: flex;
    gap: var(--space-sm);
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: var(--space-2xl);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.85rem 2rem;
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: var(--radius-sm);
    border: none;
    cursor: pointer;
    transition: all var(--duration) var(--ease);
    font-family: var(--font-sans);
}

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

.btn-primary:hover {
    background: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(13, 148, 136, 0.3);
}

.btn-secondary {
    background: rgba(255,255,255,0.08);
    color: var(--white);
    border: 1px solid rgba(255,255,255,0.15);
}

.btn-secondary:hover {
    background: rgba(255,255,255,0.14);
    transform: translateY(-2px);
}

.btn-full {
    width: 100%;
}

/* Hero Dashboard */
.hero-dashboard {
    margin-top: var(--space-2xl);
    padding-bottom: 120px;
    display: flex;
    justify-content: center;
}

.dashboard-composition {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
    transform: perspective(1000px) rotateX(2deg);
    transition: transform var(--duration) var(--ease);
}

.dashboard-composition:hover {
    transform: perspective(1000px) rotateX(0deg) translateY(-5px);
}

.dashboard-layer {
    border-radius: var(--radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.main-layer {
    width: 90%;
    margin-right: auto;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    position: relative;
    z-index: 1;
}

.float-layer {
    position: absolute;
    bottom: -15%;
    right: 0;
    width: 65%;
    box-shadow: 0 35px 60px -15px rgba(0, 0, 0, 0.7);
    z-index: 2;
    transition: transform 0.4s var(--ease);
}

.dashboard-composition:hover .float-layer {
    transform: translate(-10px, -10px) scale(1.02);
}

/* Hero Stats */
.hero-stats {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-xl);
    padding-top: var(--space-xl);
    border-top: 1px solid rgba(255,255,255,0.08);
}

.stat {
    text-align: center;
    max-width: 220px;
}

.stat-number {
    font-family: var(--font-sans);
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--white);
    letter-spacing: -0.02em;
}

.stat-suffix {
    font-family: var(--font-sans);
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--accent);
}

.stat-label {
    display: block;
    font-size: 0.8rem;
    line-height: 1.5;
    color: rgba(255,255,255,0.6);
    margin-top: 0.45rem;
}

.hero-footnote {
    max-width: 640px;
    margin: var(--space-md) auto 0;
    font-size: 0.92rem;
    line-height: 1.7;
    color: rgba(255,255,255,0.5);
}

.stat-divider {
    width: 1px;
    height: 40px;
    background: rgba(255,255,255,0.1);
}

/* --- Trust Bar --- */
.trust-bar {
    padding: var(--space-xl) 0;
    border-bottom: 1px solid var(--cream-dark);
}

.trust-label {
    text-align: center;
    font-size: 0.78rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--gray-400);
    margin-bottom: var(--space-md);
    margin-bottom: var(--space-lg);
}

.sources-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-md);
}

.source-card {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    min-height: 170px;
    padding: var(--space-lg);
    background: var(--white);
    border: 1px solid var(--cream-dark);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: transform var(--duration) var(--ease), box-shadow var(--duration) var(--ease), border-color var(--duration) var(--ease);
}

a.source-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(13, 148, 136, 0.2);
}

.source-card-logo {
    align-items: flex-start;
    justify-content: flex-start;
    gap: var(--space-md);
}

.source-card-logo img {
    width: 160px;
    height: auto;
}

.source-name {
    font-size: 1rem;
    font-weight: 700;
    color: var(--navy);
    margin-bottom: var(--space-sm);
}

.source-card p {
    font-size: 0.92rem;
    line-height: 1.6;
    color: var(--gray-500);
}

.source-card-note {
    background: linear-gradient(180deg, var(--white), var(--gray-100));
}

/* --- Section Common --- */
.section-header {
    text-align: center;
    max-width: 680px;
    margin: 0 auto var(--space-2xl);
}

.section-tag {
    display: inline-block;
    font-size: 0.78rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--accent);
    margin-bottom: var(--space-sm);
}

.section-title {
    font-family: var(--font-serif);
    font-size: clamp(1.8rem, 3.5vw, 2.5rem);
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.02em;
    color: var(--navy);
    margin-bottom: var(--space-md);
}

.section-desc {
    font-size: 1.05rem;
    line-height: 1.7;
    color: var(--gray-500);
}

/* --- Platform / Features --- */
.platform {
    padding: var(--space-3xl) 0;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
}

.feature-card {
    padding: var(--space-xl) var(--space-lg);
    background: var(--white);
    border: 1px solid var(--cream-dark);
    border-radius: var(--radius-lg);
    transition: all var(--duration) var(--ease);
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
    border-color: rgba(13, 148, 136, 0.2);
}

.feature-icon {
    width: 56px;
    height: 56px;
    margin-bottom: var(--space-md);
    color: var(--navy);
}

.feature-icon svg {
    width: 100%;
    height: 100%;
}

.feature-title {
    font-family: var(--font-sans);
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--navy);
    margin-bottom: var(--space-xs);
}

.feature-desc {
    font-size: 0.95rem;
    line-height: 1.65;
    color: var(--gray-500);
}

/* --- Provenance --- */
.provenance {
    padding: var(--space-3xl) 0;
    background: linear-gradient(180deg, rgba(255,255,255,0) 0%, rgba(255,255,255,0.8) 100%);
}

.provenance-layout {
    display: grid;
    grid-template-columns: minmax(0, 1.2fr) minmax(320px, 0.8fr);
    gap: var(--space-2xl);
    align-items: center;
}

.provenance-content .section-title,
.provenance-content .section-desc {
    text-align: left;
}

.provenance-content .section-desc {
    margin-bottom: var(--space-xl);
}

.provenance-list {
    display: grid;
    gap: var(--space-md);
}

.provenance-card {
    padding: var(--space-lg);
    background: var(--white);
    border: 1px solid var(--cream-dark);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.provenance-card h3 {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--navy);
    margin-bottom: 0.5rem;
}

.provenance-card p {
    font-size: 0.94rem;
    line-height: 1.65;
    color: var(--gray-500);
}

.provenance-visual {
    display: flex;
    align-items: center;
    justify-content: center;
}

.record-card {
    width: 100%;
    max-width: 400px;
    background: linear-gradient(180deg, var(--navy) 0%, var(--navy-light) 100%);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: var(--radius-xl);
    box-shadow: 0 22px 48px rgba(10, 22, 40, 0.2);
    overflow: hidden;
}

.record-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.25rem;
    border-bottom: 1px solid rgba(255,255,255,0.08);
}

.record-status {
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--accent);
}

.record-version {
    font-size: 0.82rem;
    color: rgba(255,255,255,0.45);
}

.record-card-body {
    padding: 1rem 1.25rem;
}

.record-row {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: var(--space-md);
    padding: 0.9rem 0;
    border-bottom: 1px solid rgba(255,255,255,0.08);
}

.record-row:last-child {
    border-bottom: none;
}

.record-label {
    font-size: 0.82rem;
    font-weight: 600;
    color: rgba(255,255,255,0.52);
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.record-value {
    max-width: 210px;
    text-align: right;
    font-size: 0.88rem;
    line-height: 1.5;
    color: var(--white);
}

/* --- Infrastructure --- */
.infrastructure {
    padding: var(--space-3xl) 0;
    background: var(--white);
    border-top: 1px solid var(--cream-dark);
    border-bottom: 1px solid var(--cream-dark);
}

.infra-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-2xl);
    align-items: center;
}

.infra-content .section-title {
    text-align: left;
}

.infra-content .section-desc {
    text-align: left;
    margin-bottom: var(--space-xl);
}

.infra-features {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.infra-feature {
    display: flex;
    gap: var(--space-sm);
    align-items: flex-start;
    padding: var(--space-sm);
    border-radius: var(--radius-md);
    transition: background var(--duration) var(--ease);
}

.infra-feature:hover {
    background: var(--gray-100);
}

.infra-feature-icon {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent-glow);
    border-radius: var(--radius-sm);
    color: var(--accent);
    padding: 8px;
}

.infra-feature-icon svg {
    width: 100%;
    height: 100%;
}

.infra-feature h4 {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--navy);
    margin-bottom: 0.2rem;
}

.infra-feature p {
    font-size: 0.88rem;
    line-height: 1.55;
    color: var(--gray-500);
}

/* Infrastructure Diagram */
.infra-visual {
    display: flex;
    align-items: center;
    justify-content: center;
}

.infra-diagram {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0;
    width: 100%;
    max-width: 400px;
}

.diagram-node {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.8rem 1.4rem;
    background: var(--cream);
    border: 1px solid var(--cream-dark);
    border-radius: var(--radius-md);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--gray-600);
    white-space: nowrap;
}

.diagram-node.active {
    background: var(--navy);
    border-color: var(--navy);
    color: var(--white);
    box-shadow: 0 4px 20px rgba(10, 22, 40, 0.3);
}

.diagram-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--gray-400);
    flex-shrink: 0;
}

.diagram-dot.accent {
    background: var(--accent);
    box-shadow: 0 0 8px var(--accent-glow);
}

.diagram-line {
    width: 2px;
    height: 32px;
    background: linear-gradient(to bottom, var(--cream-dark), var(--navy));
}

.diagram-branches {
    display: flex;
    gap: var(--space-sm);
    margin-top: 0;
}

.diagram-branch {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.diagram-line-sm {
    width: 2px;
    height: 24px;
    background: linear-gradient(to bottom, var(--navy), var(--cream-dark));
}

.diagram-node-leaf {
    font-size: 0.78rem;
    padding: 0.6rem 1rem;
}

/* --- About / Values --- */
.about {
    padding: var(--space-3xl) 0;
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
}

.value-card {
    padding: var(--space-xl) var(--space-lg);
    position: relative;
}

.value-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    bottom: 0;
    width: 3px;
    background: var(--cream-dark);
    border-radius: 3px;
    transition: background var(--duration) var(--ease);
}

.value-card:hover::before {
    background: var(--accent);
}

.value-number {
    font-family: var(--font-sans);
    font-size: 0.78rem;
    font-weight: 700;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    display: block;
    margin-bottom: var(--space-sm);
}

.value-card h3 {
    font-family: var(--font-sans);
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--navy);
    margin-bottom: var(--space-xs);
}

.value-card p {
    font-size: 0.92rem;
    line-height: 1.6;
    color: var(--gray-500);
}

/* --- Contact --- */
.contact {
    padding: var(--space-3xl) 0;
    background: var(--navy);
    color: var(--white);
}

.contact-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-2xl);
    align-items: start;
}

.contact .section-title {
    color: var(--white);
    text-align: left;
}

.contact .section-desc {
    color: rgba(255,255,255,0.55);
    text-align: left;
    margin-bottom: var(--space-lg);
}

.contact-info-item {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    color: rgba(255,255,255,0.5);
    font-size: 0.92rem;
}

.contact-info-item svg {
    width: 20px;
    height: 20px;
    stroke: var(--accent);
}

.contact-form-wrapper {
    background: var(--navy-light);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.form-group label {
    font-size: 0.82rem;
    font-weight: 600;
    color: rgba(255,255,255,0.6);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    font-family: var(--font-sans);
    font-size: 0.92rem;
    color: var(--white);
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: var(--radius-sm);
    outline: none;
    transition: all var(--duration) var(--ease);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: rgba(255,255,255,0.25);
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--accent);
    background: rgba(13, 148, 136, 0.05);
    box-shadow: 0 0 0 3px rgba(13, 148, 136, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

.form-disclaimer {
    font-size: 0.8rem;
    color: rgba(255,255,255,0.35);
    text-align: center;
}

/* --- Footer --- */
.footer {
    padding: var(--space-2xl) 0 var(--space-lg);
    background: var(--cream);
    border-top: 1px solid var(--cream-dark);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    gap: var(--space-2xl);
    margin-bottom: var(--space-xl);
}

.footer-logo .logo-mark {
    width: 28px;
    height: 28px;
}

.footer-logo .logo-text {
    font-size: 1.15rem;
}

.footer-tagline {
    font-size: 0.88rem;
    color: var(--gray-400);
    line-height: 1.5;
    margin-top: var(--space-sm);
}

.footer-address {
    display: grid;
    gap: 0.2rem;
    margin-top: var(--space-md);
    font-style: normal;
    font-size: 0.88rem;
    line-height: 1.55;
    color: var(--gray-500);
}

.footer-address strong {
    color: var(--navy);
    font-weight: 700;
}

.footer-address span {
    display: block;
}

.footer-links {
    display: flex;
    gap: var(--space-2xl);
}

.footer-col {
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
}

.footer-col h4 {
    font-size: 0.78rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--navy);
    margin-bottom: 0.3rem;
}

.footer-col a {
    font-size: 0.88rem;
    color: var(--gray-500);
}

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

.footer-bottom {
    padding-top: var(--space-lg);
    border-top: 1px solid var(--cream-dark);
}

.footer-bottom p {
    font-size: 0.82rem;
    color: var(--gray-400);
}

/* --- Scroll Animations --- */
.fade-in {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}

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

/* --- Responsive --- */
@media (max-width: 1024px) {
    .features-grid,
    .values-grid,
    .sources-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .infra-layout,
    .provenance-layout {
        grid-template-columns: 1fr;
        gap: var(--space-xl);
    }

    .infra-visual,
    .provenance-visual {
        order: -1;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(248, 247, 243, 0.98);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: var(--space-lg);
        z-index: 999;
    }

    .nav-links.active {
        display: flex;
    }

    .nav-links .nav-link {
        font-size: 1.3rem;
        color: var(--navy);
    }

    .nav-toggle {
        display: flex;
        z-index: 1001;
    }

    .hero {
        padding: calc(var(--space-2xl) + 60px) 0 var(--space-2xl);
    }

    .hero-title {
        font-size: 2rem;
    }

    .hero-stats {
        flex-direction: column;
        gap: var(--space-md);
    }

    .stat-divider {
        width: 40px;
        height: 1px;
    }

    .features-grid,
    .values-grid,
    .sources-grid {
        grid-template-columns: 1fr;
    }

    .source-card {
        min-height: auto;
    }

    .contact-layout {
        grid-template-columns: 1fr;
    }

    .footer-content {
        flex-direction: column;
        gap: var(--space-lg);
    }

    .footer-links {
        flex-direction: column;
        gap: var(--space-lg);
    }

    .diagram-branches {
        flex-direction: column;
        align-items: center;
    }

    .record-row {
        flex-direction: column;
        gap: 0.35rem;
    }

    .record-value {
        max-width: none;
        text-align: left;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 1.7rem;
    }

    .section-title {
        font-size: 1.5rem;
    }
}