*, *::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-hairline: #dddddd;
    --color-ink: #181d26;
    --color-body: #333840;
    --color-muted: #41454d;
    --color-on-primary: #ffffff;
    --color-link: #1b61c9;
    --color-signature-coral: #aa2d00;
    --color-signature-forest: #0a2e0e;
    --color-signature-cream: #f5e9d4;
    --color-signature-peach: #fcab79;
    --color-signature-mint: #a8d8c4;
    --color-signature-yellow: #f4d35e;
    --rounded-xs: 2px;
    --rounded-sm: 6px;
    --rounded-md: 10px;
    --rounded-lg: 12px;
    --spacing-xs: 8px;
    --spacing-sm: 12px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-xxl: 48px;
    --spacing-section: 96px;
    --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
    --max-width: 1280px;
}

html { scroll-behavior: smooth; }

body {
    font-family: var(--font-sans);
    font-size: 14px;
    font-weight: 400;
    line-height: 1.6;
    color: var(--color-body);
    background: var(--color-canvas);
}

a { color: var(--color-link); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; height: auto; display: block; }

.container {
    max-width: var(--max-width);
    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-size: 18px;
    font-weight: 600;
    color: var(--color-ink);
    text-decoration: none;
    white-space: nowrap;
}
.nav-logo:hover { text-decoration: none; color: var(--color-ink); }
.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-lg);
    flex: 1;
}
.nav-menu a {
    font-size: 14px;
    font-weight: 400;
    color: var(--color-body);
    text-decoration: none;
}
.nav-menu a:hover { color: var(--color-ink); text-decoration: none; }
.nav-actions { display: flex; align-items: center; gap: var(--spacing-sm); }
.btn-primary {
    background: var(--color-primary);
    color: var(--color-on-primary);
    font-size: 16px;
    font-weight: 500;
    line-height: 1.4;
    padding: 10px var(--spacing-lg);
    border-radius: var(--rounded-lg);
    border: none;
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
    white-space: nowrap;
}
.btn-primary:hover { background: var(--color-primary-active); text-decoration: none; color: var(--color-on-primary); }
.btn-secondary {
    background: var(--color-canvas);
    color: var(--color-ink);
    font-size: 16px;
    font-weight: 500;
    line-height: 1.4;
    padding: 10px var(--spacing-lg);
    border-radius: var(--rounded-lg);
    border: 1px solid var(--color-hairline);
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
    white-space: nowrap;
}
.btn-secondary:hover { border-color: var(--color-ink); text-decoration: none; color: var(--color-ink); }
.nav-hamburger {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
    flex-direction: column;
    gap: 5px;
}
.nav-hamburger span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--color-ink);
    border-radius: 2px;
    transition: transform 0.2s, opacity 0.2s;
}

/* HERO BAND */
.hero-band {
    padding: var(--spacing-section) 0;
    background: var(--color-canvas);
}
.hero-band .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xxl);
    align-items: center;
}
.hero-content h1 {
    font-size: 40px;
    font-weight: 400;
    line-height: 1.2;
    color: var(--color-ink);
    margin-bottom: var(--spacing-md);
}
.hero-content p {
    font-size: 14px;
    font-weight: 400;
    color: var(--color-body);
    margin-bottom: var(--spacing-xl);
    max-width: 480px;
}
.hero-buttons { display: flex; gap: var(--spacing-sm); flex-wrap: wrap; }
.hero-image img { border-radius: var(--rounded-md); width: 100%; object-fit: cover; max-height: 380px; }

/* SIGNATURE CARDS */
.signature-coral-card {
    background: var(--color-signature-coral);
    color: var(--color-on-primary);
    border-radius: var(--rounded-lg);
    padding: var(--spacing-xxl);
}
.signature-coral-card h2 {
    font-size: 32px;
    font-weight: 400;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
    color: var(--color-on-primary);
}
.signature-coral-card p { color: rgba(255,255,255,0.85); margin-bottom: var(--spacing-xl); }
.btn-secondary-on-dark {
    background: var(--color-canvas);
    color: var(--color-ink);
    font-size: 16px;
    font-weight: 500;
    padding: 10px var(--spacing-lg);
    border-radius: var(--rounded-lg);
    border: none;
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
}
.btn-secondary-on-dark:hover { text-decoration: none; color: var(--color-ink); opacity: 0.92; }

.hero-card-dark {
    background: var(--color-surface-dark);
    color: var(--color-on-primary);
    border-radius: var(--rounded-lg);
    padding: var(--spacing-xxl);
}
.hero-card-dark h2 {
    font-size: 32px;
    font-weight: 400;
    line-height: 1.2;
    color: var(--color-on-primary);
    margin-bottom: var(--spacing-md);
}
.hero-card-dark p { color: rgba(255,255,255,0.8); margin-bottom: var(--spacing-xl); }

/* SECTION BANDS */
.section-band {
    padding: var(--spacing-section) 0;
    background: var(--color-canvas);
}
.section-band.soft { background: var(--color-surface-soft); }
.section-band.cream { background: var(--color-signature-cream); }
.section-band.dark { background: var(--color-surface-dark); }
.section-band.dark h2, .section-band.dark h3, .section-band.dark p, .section-band.dark a { color: var(--color-on-primary); }

.section-header { margin-bottom: var(--spacing-xxl); }
.section-header h2 {
    font-size: 32px;
    font-weight: 400;
    line-height: 1.2;
    color: var(--color-ink);
    margin-bottom: var(--spacing-sm);
}
.section-header p { font-size: 14px; color: var(--color-body); max-width: 560px; }

/* DEMO GRID */
.demo-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
}
.demo-card {
    background: var(--color-canvas);
    border-radius: var(--rounded-md);
    padding: var(--spacing-md);
    border: 1px solid var(--color-hairline);
}
.demo-card.peach { background: var(--color-signature-peach); border-color: transparent; }
.demo-card.mint { background: var(--color-signature-mint); border-color: transparent; }
.demo-card.yellow { background: var(--color-signature-yellow); border-color: transparent; }
.demo-card img { border-radius: var(--rounded-sm); width: 100%; height: 160px; object-fit: cover; margin-bottom: var(--spacing-md); }
.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); }

/* ARTICLE CARDS */
.articles-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 { border-radius: var(--rounded-sm); width: 100%; height: 180px; object-fit: cover; margin-bottom: var(--spacing-md); }
.article-tag {
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--color-muted);
    margin-bottom: var(--spacing-xs);
}
.article-card h3 { font-size: 18px; font-weight: 500; line-height: 1.4; color: var(--color-ink); margin-bottom: var(--spacing-xs); }
.article-card h3 a { color: var(--color-ink); }
.article-card h3 a:hover { color: var(--color-link); text-decoration: none; }
.article-card p { font-size: 14px; color: var(--color-body); flex: 1; }
.article-meta { font-size: 13px; color: var(--color-muted); margin-top: var(--spacing-md); }

/* 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-size: 32px; font-weight: 400; color: var(--color-ink); margin-bottom: var(--spacing-md); }
.cta-band-light p { font-size: 14px; color: var(--color-body); margin-bottom: var(--spacing-xl); }

/* CONTACT FORM */
.contact-form {
    background: var(--color-surface-soft);
    border-radius: var(--rounded-lg);
    padding: var(--spacing-xl);
    max-width: 560px;
}
.contact-form h3 { font-size: 24px; font-weight: 400; color: var(--color-ink); margin-bottom: var(--spacing-lg); }
.form-group { margin-bottom: var(--spacing-md); }
.form-group label { display: block; font-size: 14px; font-weight: 500; color: var(--color-ink); margin-bottom: var(--spacing-xs); }
.form-group input, .form-group textarea {
    width: 100%;
    background: var(--color-canvas);
    border: 1px solid var(--color-hairline);
    border-radius: var(--rounded-sm);
    padding: 12px var(--spacing-md);
    font-size: 14px;
    font-family: var(--font-sans);
    color: var(--color-ink);
    outline: none;
    height: 44px;
}
.form-group textarea { height: auto; resize: vertical; min-height: 100px; }
.form-group input:focus, .form-group textarea: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 1fr 1fr 1fr;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xxl);
}
.footer-brand p { font-size: 14px; color: var(--color-muted); margin-top: var(--spacing-sm); max-width: 280px; line-height: 1.6; }
.footer-col h4 { font-size: 14px; font-weight: 500; color: var(--color-ink); margin-bottom: var(--spacing-md); }
.footer-col ul { list-style: none; }
.footer-col ul li { margin-bottom: var(--spacing-xs); }
.footer-col ul li a { font-size: 14px; color: var(--color-muted); }
.footer-col ul li a:hover { color: var(--color-ink); text-decoration: none; }
.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-bottom p { font-size: 13px; color: var(--color-muted); }
.footer-bottom-links { display: flex; gap: var(--spacing-lg); }
.footer-bottom-links a { font-size: 13px; color: var(--color-muted); }
.footer-bottom-links a:hover { color: var(--color-ink); text-decoration: none; }

/* 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-xl);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-lg);
    z-index: 999;
    flex-wrap: wrap;
}
#cookie-banner p { font-size: 14px; color: rgba(255,255,255,0.85); flex: 1; }
#cookie-banner a { color: rgba(255,255,255,0.85); text-decoration: underline; }
.cookie-actions { display: flex; gap: var(--spacing-sm); flex-shrink: 0; }
.btn-cookie-accept {
    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;
}
.btn-cookie-reject {
    background: transparent;
    color: rgba(255,255,255,0.85);
    font-size: 13.12px;
    font-weight: 600;
    padding: 12px 10px;
    border-radius: var(--rounded-xs);
    border: 1px solid rgba(255,255,255,0.3);
    cursor: pointer;
}

/* ARTICLE PAGE */
.article-hero { padding: var(--spacing-section) 0 var(--spacing-xl); }
.article-hero h1 { font-size: 40px; font-weight: 400; line-height: 1.2; color: var(--color-ink); margin-bottom: var(--spacing-md); max-width: 800px; }
.article-hero .meta { font-size: 14px; color: var(--color-muted); margin-bottom: var(--spacing-xl); }
.article-hero img { border-radius: var(--rounded-md); width: 100%; max-height: 420px; object-fit: cover; }
.article-body { padding: var(--spacing-xl) 0 var(--spacing-section); max-width: 800px; }
.article-body h2 { font-size: 28px; font-weight: 400; color: var(--color-ink); margin: var(--spacing-xl) 0 var(--spacing-md); }
.article-body h3 { font-size: 20px; font-weight: 400; color: var(--color-ink); margin: var(--spacing-lg) 0 var(--spacing-sm); }
.article-body p { font-size: 14px; color: var(--color-body); margin-bottom: var(--spacing-md); line-height: 1.7; }
.article-body ul, .article-body ol { padding-left: var(--spacing-lg); margin-bottom: var(--spacing-md); }
.article-body li { font-size: 14px; color: var(--color-body); margin-bottom: var(--spacing-xs); line-height: 1.7; }
.article-body a { color: var(--color-link); }
.article-body strong { font-weight: 500; color: var(--color-ink); }

/* DISCLAIMER */
.disclaimer {
    background: var(--color-signature-cream);
    border-radius: var(--rounded-md);
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: 13px;
    color: var(--color-body);
    margin: var(--spacing-lg) 0;
}

/* PAGE HERO */
.page-hero {
    padding: var(--spacing-section) 0 var(--spacing-xl);
    background: var(--color-canvas);
}
.page-hero h1 { font-size: 40px; font-weight: 400; line-height: 1.2; color: var(--color-ink); margin-bottom: var(--spacing-md); }
.page-hero p { font-size: 14px; color: var(--color-body); max-width: 640px; }
.page-content { padding: var(--spacing-xl) 0 var(--spacing-section); max-width: 800px; }
.page-content h2 { font-size: 24px; font-weight: 400; color: var(--color-ink); margin: var(--spacing-xl) 0 var(--spacing-sm); }
.page-content h3 { font-size: 18px; font-weight: 500; color: var(--color-ink); margin: var(--spacing-lg) 0 var(--spacing-xs); }
.page-content p { font-size: 14px; color: var(--color-body); margin-bottom: var(--spacing-md); line-height: 1.7; }
.page-content ul, .page-content ol { padding-left: var(--spacing-lg); margin-bottom: var(--spacing-md); }
.page-content li { font-size: 14px; color: var(--color-body); margin-bottom: var(--spacing-xs); line-height: 1.7; }
.page-content a { color: var(--color-link); }

/* BREADCRUMB */
.breadcrumb { font-size: 13px; color: var(--color-muted); margin-bottom: var(--spacing-lg); }
.breadcrumb a { color: var(--color-muted); }
.breadcrumb a:hover { color: var(--color-ink); text-decoration: none; }
.breadcrumb span { margin: 0 6px; }

/* INLINE FEATURE LIST */
.feature-list { list-style: none; padding: 0; }
.feature-list li { padding: var(--spacing-xs) 0; border-bottom: 1px solid var(--color-hairline); font-size: 14px; color: var(--color-body); display: flex; gap: var(--spacing-sm); align-items: flex-start; }
.feature-list li:last-child { border-bottom: none; }
.feature-list li::before { content: "→"; color: var(--color-signature-coral); font-weight: 500; flex-shrink: 0; }

/* TWO COL LAYOUT */
.two-col {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xxl);
    align-items: start;
}
.two-col-reverse { direction: rtl; }
.two-col-reverse > * { direction: ltr; }

/* RESPONSIVE */
@media (max-width: 1024px) {
    .demo-grid { grid-template-columns: repeat(2, 1fr); }
    .articles-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .two-col { grid-template-columns: 1fr; }
    .hero-band .container { grid-template-columns: 1fr; }
    .hero-image { display: none; }
}
@media (max-width: 768px) {
    :root { --spacing-section: 64px; }
    .container { padding: 0 var(--spacing-md); }
    .nav-menu, .nav-actions { display: none; }
    .nav-hamburger { display: flex; }
    .nav-menu.open {
        display: flex;
        flex-direction: column;
        position: fixed;
        top: 64px;
        left: 0;
        right: 0;
        bottom: 0;
        background: var(--color-canvas);
        padding: var(--spacing-xl);
        gap: var(--spacing-md);
        z-index: 99;
        border-top: 1px solid var(--color-hairline);
    }
    .nav-menu.open + .nav-actions {
        display: flex;
        position: fixed;
        bottom: var(--spacing-xl);
        left: var(--spacing-xl);
        right: var(--spacing-xl);
        z-index: 99;
    }
    .demo-grid { grid-template-columns: 1fr; }
    .articles-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; }
    .hero-content h1 { font-size: 28px; }
    .section-header h2 { font-size: 24px; }
    .signature-coral-card h2 { font-size: 24px; }
    .hero-card-dark h2 { font-size: 24px; }
    .article-hero h1 { font-size: 28px; }
    .page-hero h1 { font-size: 28px; }
    #cookie-banner { flex-direction: column; align-items: flex-start; }
    .cta-band-light { padding: var(--spacing-xl); }
}