@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600&family=Inter+Display:wght@400;500&display=swap');

*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

:root {
    --color-primary: #181d26;
    --color-primary-active: #0d1218;
    --color-canvas: #ffffff;
    --color-surface-soft: #f8fafc;
    --color-surface-strong: #e0e2e6;
    --color-surface-dark: #181d26;
    --color-surface-dark-elevated: #1d1f25;
    --color-hairline: #dddddd;
    --color-ink: #181d26;
    --color-body: #333840;
    --color-muted: #41454d;
    --color-on-primary: #ffffff;
    --color-link: #1b61c9;
    --color-link-active: #1a3866;
    --color-signature-coral: #aa2d00;
    --color-signature-forest: #0a2e0e;
    --color-signature-cream: #f5e9d4;
    --color-signature-mint: #a8d8c4;
    --color-signature-peach: #fcab79;
    --color-border-strong: #9297a0;

    --rounded-xs: 2px;
    --rounded-sm: 6px;
    --rounded-md: 10px;
    --rounded-lg: 12px;
    --rounded-full: 9999px;

    --spacing-xxs: 4px;
    --spacing-xs: 8px;
    --spacing-sm: 12px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-xxl: 48px;
    --spacing-section: 96px;

    --font-main: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    --font-display: 'Inter Display', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-main);
    font-size: 14px;
    font-weight: 400;
    line-height: 1.25;
    color: var(--color-body);
    background-color: var(--color-canvas);
    -webkit-font-smoothing: antialiased;
}

a {
    color: var(--color-link);
    text-decoration: none;
}

a:active {
    color: var(--color-link-active);
}

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

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--spacing-xxl);
}

/* TOP NAV */
.top-nav {
    height: 64px;
    background: var(--color-canvas);
    border-bottom: 1px solid var(--color-hairline);
    position: sticky;
    top: 0;
    z-index: 100;
}

.top-nav .container {
    display: flex;
    align-items: center;
    height: 100%;
    gap: var(--spacing-xl);
}

.nav-logo {
    font-family: var(--font-display);
    font-size: 18px;
    font-weight: 500;
    color: var(--color-ink);
    white-space: nowrap;
    flex-shrink: 0;
}

.nav-logo:active {
    color: var(--color-primary-active);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: var(--spacing-lg);
    flex: 1;
}

.nav-links a {
    font-size: 14px;
    font-weight: 400;
    color: var(--color-body);
}

.nav-links a:active {
    color: var(--color-ink);
}

.nav-hamburger {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
    flex-direction: column;
    gap: 5px;
    margin-left: auto;
}

.nav-hamburger span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--color-ink);
    border-radius: 2px;
}

.nav-mobile-menu {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--color-canvas);
    z-index: 200;
    flex-direction: column;
    padding: var(--spacing-xxl);
}

.nav-mobile-menu.open {
    display: flex;
}

.nav-mobile-close {
    align-self: flex-end;
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--color-ink);
    margin-bottom: var(--spacing-xl);
}

.nav-mobile-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.nav-mobile-links a {
    font-size: 20px;
    font-weight: 400;
    color: var(--color-ink);
}

/* BUTTONS */
.btn-primary {
    display: inline-block;
    background: var(--color-primary);
    color: var(--color-on-primary);
    font-size: 16px;
    font-weight: 500;
    line-height: 1.4;
    padding: 16px 24px;
    border-radius: var(--rounded-lg);
    border: none;
    cursor: pointer;
    text-decoration: none;
    white-space: nowrap;
}

.btn-primary:active {
    background: var(--color-primary-active);
    color: var(--color-on-primary);
}

.btn-secondary {
    display: inline-block;
    background: var(--color-canvas);
    color: var(--color-ink);
    font-size: 16px;
    font-weight: 500;
    line-height: 1.4;
    padding: 16px 24px;
    border-radius: var(--rounded-lg);
    border: 1px solid var(--color-hairline);
    cursor: pointer;
    text-decoration: none;
    white-space: nowrap;
}

.btn-secondary:active {
    background: var(--color-surface-soft);
}

.btn-secondary-on-dark {
    display: inline-block;
    background: var(--color-canvas);
    color: var(--color-ink);
    font-size: 16px;
    font-weight: 500;
    line-height: 1.4;
    padding: 16px 24px;
    border-radius: var(--rounded-lg);
    border: none;
    cursor: pointer;
    text-decoration: none;
    white-space: nowrap;
}

.btn-legal {
    display: inline-block;
    background: var(--color-link);
    color: var(--color-on-primary);
    font-size: 13.12px;
    font-weight: 600;
    padding: 12px 10px;
    border-radius: var(--rounded-xs);
    border: none;
    cursor: pointer;
    text-decoration: none;
}

/* HERO BAND */
.hero-band {
    padding: var(--spacing-section) 0;
    background: var(--color-canvas);
}

.hero-band .hero-inner {
    max-width: 720px;
}

.hero-band h1 {
    font-family: var(--font-display);
    font-size: 40px;
    font-weight: 400;
    line-height: 1.2;
    color: var(--color-ink);
    margin-bottom: var(--spacing-lg);
}

.hero-band .hero-sub {
    font-size: 14px;
    font-weight: 400;
    line-height: 1.25;
    color: var(--color-body);
    margin-bottom: var(--spacing-xl);
    max-width: 560px;
}

.hero-btn-row {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

/* SECTION */
.section {
    padding: var(--spacing-section) 0;
}

.section-title {
    font-family: var(--font-display);
    font-size: 32px;
    font-weight: 400;
    line-height: 1.2;
    color: var(--color-ink);
    margin-bottom: var(--spacing-lg);
}

.section-subtitle {
    font-size: 14px;
    color: var(--color-body);
    margin-bottom: var(--spacing-xxl);
    max-width: 560px;
}

/* SIGNATURE CARDS */
.signature-forest-card {
    background: var(--color-signature-forest);
    border-radius: var(--rounded-lg);
    padding: var(--spacing-xxl);
    color: var(--color-on-primary);
}

.signature-forest-card h2 {
    font-family: var(--font-display);
    font-size: 32px;
    font-weight: 400;
    line-height: 1.2;
    color: var(--color-on-primary);
    margin-bottom: var(--spacing-md);
}

.signature-forest-card p {
    font-size: 14px;
    line-height: 1.25;
    color: rgba(255,255,255,0.85);
    margin-bottom: var(--spacing-xl);
    max-width: 560px;
}

.signature-coral-card {
    background: var(--color-signature-coral);
    border-radius: var(--rounded-lg);
    padding: var(--spacing-xxl);
    color: var(--color-on-primary);
}

.signature-coral-card h2 {
    font-family: var(--font-display);
    font-size: 32px;
    font-weight: 400;
    line-height: 1.2;
    color: var(--color-on-primary);
    margin-bottom: var(--spacing-md);
}

.signature-coral-card p {
    font-size: 14px;
    line-height: 1.25;
    color: rgba(255,255,255,0.85);
    margin-bottom: var(--spacing-xl);
    max-width: 560px;
}

.hero-card-dark {
    background: var(--color-surface-dark);
    border-radius: var(--rounded-lg);
    padding: var(--spacing-xxl);
    color: var(--color-on-primary);
}

.hero-card-dark h2 {
    font-family: var(--font-display);
    font-size: 32px;
    font-weight: 400;
    line-height: 1.2;
    color: var(--color-on-primary);
    margin-bottom: var(--spacing-md);
}

.hero-card-dark p {
    font-size: 14px;
    color: rgba(255,255,255,0.8);
    margin-bottom: var(--spacing-xl);
    max-width: 560px;
}

.cream-callout {
    background: var(--color-signature-cream);
    border-radius: var(--rounded-md);
    padding: var(--spacing-lg);
}

.cream-callout h3 {
    font-size: 20px;
    font-weight: 400;
    color: var(--color-ink);
    margin-bottom: var(--spacing-xs);
}

.cream-callout p {
    font-size: 14px;
    color: var(--color-body);
}

/* ARTICLE CARDS */
.article-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
}

.article-card {
    background: var(--color-canvas);
    border-radius: var(--rounded-md);
    padding: var(--spacing-md);
    border: 1px solid var(--color-hairline);
    display: flex;
    flex-direction: column;
}

.article-card-img {
    width: 100%;
    aspect-ratio: 16/9;
    object-fit: cover;
    border-radius: var(--rounded-md);
    margin-bottom: var(--spacing-md);
}

.article-card-tag {
    font-size: 12px;
    font-weight: 500;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--color-muted);
    margin-bottom: var(--spacing-xs);
}

.article-card-title {
    font-size: 18px;
    font-weight: 500;
    line-height: 1.4;
    color: var(--color-ink);
    margin-bottom: var(--spacing-xs);
    flex: 1;
}

.article-card-meta {
    font-size: 14px;
    font-weight: 500;
    letter-spacing: 0.016em;
    color: var(--color-muted);
    margin-top: var(--spacing-sm);
}

.article-card-link {
    display: block;
    color: inherit;
    text-decoration: none;
}

/* DEMO GRID */
.demo-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
}

.demo-card {
    border-radius: var(--rounded-md);
    padding: var(--spacing-md);
    background: var(--color-surface-soft);
}

.demo-card.mint { background: var(--color-signature-mint); }
.demo-card.peach { background: var(--color-signature-peach); }
.demo-card.cream { background: var(--color-signature-cream); }

.demo-card h3 {
    font-size: 16px;
    font-weight: 500;
    color: var(--color-ink);
    margin-bottom: var(--spacing-xs);
}

.demo-card p {
    font-size: 14px;
    color: var(--color-body);
}

.demo-card img {
    width: 100%;
    border-radius: var(--rounded-md);
    margin-bottom: var(--spacing-md);
    aspect-ratio: 4/3;
    object-fit: cover;
}

/* CTA BAND LIGHT */
.cta-band-light {
    background: var(--color-surface-strong);
    border-radius: var(--rounded-lg);
    padding: var(--spacing-xxl);
    text-align: center;
}

.cta-band-light h2 {
    font-family: var(--font-display);
    font-size: 32px;
    font-weight: 400;
    color: var(--color-ink);
    margin-bottom: var(--spacing-lg);
}

/* FORM */
.contact-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    max-width: 560px;
}

.form-row {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.form-row label {
    font-size: 14px;
    font-weight: 500;
    color: var(--color-ink);
}

.text-input {
    background: var(--color-canvas);
    color: var(--color-ink);
    font-family: var(--font-main);
    font-size: 14px;
    font-weight: 400;
    border-radius: var(--rounded-sm);
    padding: 12px 16px;
    height: 44px;
    border: 1px solid var(--color-hairline);
    width: 100%;
    outline: none;
}

.text-input:focus {
    border-color: #458fff;
}

/* FOOTER */
.site-footer {
    background: var(--color-canvas);
    border-top: 1px solid var(--color-hairline);
    padding: var(--spacing-section) 0 var(--spacing-xl);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr repeat(3, 1fr);
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xxl);
}

.footer-brand-name {
    font-family: var(--font-display);
    font-size: 16px;
    font-weight: 500;
    color: var(--color-ink);
    margin-bottom: var(--spacing-md);
}

.footer-brand-desc {
    font-size: 14px;
    color: var(--color-muted);
    line-height: 1.5;
    max-width: 240px;
}

.footer-col-title {
    font-size: 14px;
    font-weight: 500;
    color: var(--color-ink);
    margin-bottom: var(--spacing-md);
}

.footer-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer-links a {
    font-size: 14px;
    color: var(--color-muted);
}

.footer-links a:active {
    color: var(--color-ink);
}

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

.footer-legal {
    font-size: 14px;
    color: var(--color-muted);
}

/* ARTICLE PAGE */
.article-hero {
    padding: var(--spacing-section) 0 var(--spacing-xxl);
    background: var(--color-canvas);
}

.article-hero h1 {
    font-family: var(--font-display);
    font-size: 40px;
    font-weight: 400;
    line-height: 1.2;
    color: var(--color-ink);
    max-width: 800px;
    margin-bottom: var(--spacing-lg);
}

.article-meta {
    font-size: 14px;
    font-weight: 500;
    letter-spacing: 0.016em;
    color: var(--color-muted);
    margin-bottom: var(--spacing-xl);
}

.article-cover {
    width: 100%;
    max-height: 480px;
    object-fit: cover;
    border-radius: var(--rounded-md);
    margin-bottom: var(--spacing-xxl);
}

.article-body {
    max-width: 720px;
}

.article-body h2 {
    font-family: var(--font-display);
    font-size: 24px;
    font-weight: 400;
    line-height: 1.35;
    letter-spacing: 0.12px;
    color: var(--color-ink);
    margin: var(--spacing-xxl) 0 var(--spacing-md);
}

.article-body h3 {
    font-size: 20px;
    font-weight: 400;
    line-height: 1.5;
    color: var(--color-ink);
    margin: var(--spacing-xl) 0 var(--spacing-sm);
}

.article-body p {
    font-size: 14px;
    line-height: 1.7;
    color: var(--color-body);
    margin-bottom: var(--spacing-md);
}

.article-body ul, .article-body ol {
    margin: var(--spacing-md) 0 var(--spacing-md) var(--spacing-xl);
}

.article-body li {
    font-size: 14px;
    line-height: 1.7;
    color: var(--color-body);
    margin-bottom: var(--spacing-xs);
}

.article-body a {
    color: var(--color-link);
}

.article-body a:active {
    color: var(--color-link-active);
}

.article-inline-img {
    width: 100%;
    border-radius: var(--rounded-md);
    margin: var(--spacing-xl) 0;
    aspect-ratio: 16/9;
    object-fit: cover;
}

/* BREADCRUMB */
.breadcrumb {
    font-size: 14px;
    color: var(--color-muted);
    margin-bottom: var(--spacing-lg);
}

.breadcrumb a {
    color: var(--color-muted);
}

/* PAGE CONTENT */
.page-hero {
    padding: var(--spacing-section) 0 var(--spacing-xxl);
}

.page-hero h1 {
    font-family: var(--font-display);
    font-size: 40px;
    font-weight: 400;
    line-height: 1.2;
    color: var(--color-ink);
    margin-bottom: var(--spacing-lg);
}

.page-content {
    max-width: 720px;
    padding-bottom: var(--spacing-section);
}

.page-content h2 {
    font-family: var(--font-display);
    font-size: 24px;
    font-weight: 400;
    color: var(--color-ink);
    margin: var(--spacing-xxl) 0 var(--spacing-md);
}

.page-content h3 {
    font-size: 20px;
    font-weight: 400;
    color: var(--color-ink);
    margin: var(--spacing-xl) 0 var(--spacing-sm);
}

.page-content p {
    font-size: 14px;
    line-height: 1.7;
    color: var(--color-body);
    margin-bottom: var(--spacing-md);
}

.page-content ul {
    margin: var(--spacing-md) 0 var(--spacing-md) var(--spacing-xl);
}

.page-content li {
    font-size: 14px;
    line-height: 1.7;
    color: var(--color-body);
    margin-bottom: var(--spacing-xs);
}

/* COOKIE BANNER */
#cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--color-surface-dark);
    color: var(--color-on-primary);
    padding: var(--spacing-lg) var(--spacing-xxl);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-lg);
    z-index: 300;
    flex-wrap: wrap;
}

#cookie-banner p {
    font-size: 14px;
    line-height: 1.5;
    color: rgba(255,255,255,0.85);
    flex: 1;
    min-width: 200px;
}

#cookie-banner p a {
    color: rgba(255,255,255,0.85);
    text-decoration: underline;
}

.cookie-btn-row {
    display: flex;
    gap: var(--spacing-sm);
    flex-shrink: 0;
}

/* STATS ROW */
.stats-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
    padding: var(--spacing-xxl) 0;
    border-top: 1px solid var(--color-hairline);
    border-bottom: 1px solid var(--color-hairline);
}

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

.stat-number {
    font-family: var(--font-display);
    font-size: 48px;
    font-weight: 500;
    line-height: 1.1;
    color: var(--color-ink);
    display: block;
}

.stat-label {
    font-size: 14px;
    color: var(--color-muted);
    margin-top: var(--spacing-xs);
}

/* DISCLAIMER */
.disclaimer {
    background: var(--color-surface-soft);
    border-left: 3px solid var(--color-hairline);
    padding: var(--spacing-md) var(--spacing-lg);
    margin: var(--spacing-xl) 0;
    border-radius: 0 var(--rounded-sm) var(--rounded-sm) 0;
}

.disclaimer p {
    font-size: 13px;
    color: var(--color-muted);
    line-height: 1.5;
}

/* RELATED ARTICLES */
.related-section {
    padding: var(--spacing-section) 0;
    border-top: 1px solid var(--color-hairline);
}

.related-section .section-title {
    font-size: 24px;
    margin-bottom: var(--spacing-xl);
}

/* RESPONSIVE */
@media (max-width: 1024px) {
    .article-grid { grid-template-columns: repeat(2, 1fr); }
    .demo-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .stats-row { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 768px) {
    .container { padding: 0 var(--spacing-md); }
    .nav-links { display: none; }
    .nav-hamburger { display: flex; }

    .hero-band { padding: var(--spacing-xxl) 0; }
    .hero-band h1 { font-size: 28px; }
    .section { padding: var(--spacing-xxl) 0; }
    .section-title { font-size: 24px; }

    .article-grid { grid-template-columns: 1fr; }
    .demo-grid { grid-template-columns: 1fr; }

    .signature-forest-card, .signature-coral-card, .hero-card-dark { padding: var(--spacing-xl); }
    .signature-forest-card h2, .signature-coral-card h2, .hero-card-dark h2 { font-size: 24px; }

    .footer-grid { grid-template-columns: 1fr; gap: var(--spacing-xl); }
    .footer-bottom { flex-direction: column; align-items: flex-start; }

    .stats-row { grid-template-columns: 1fr; gap: var(--spacing-xl); border: none; }
    .stat-number { font-size: 36px; }

    .article-hero h1 { font-size: 28px; }
    .page-hero h1 { font-size: 28px; }

    #cookie-banner { padding: var(--spacing-md); flex-direction: column; align-items: flex-start; }
    .cookie-btn-row { width: 100%; justify-content: flex-start; }

    .cta-band-light { padding: var(--spacing-xl); }
    .cta-band-light h2 { font-size: 24px; }
}