@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-ink:            #181d26;
    --color-body:           #333840;
    --color-muted:          #41454d;
    --color-hairline:       #dddddd;
    --color-link:           #1b61c9;
    --color-on-primary:     #ffffff;
    --color-coral:          #aa2d00;
    --color-forest:         #0a2e0e;
    --color-cream:          #f5e9d4;
    --color-peach:          #fcab79;
    --color-mint:           #a8d8c4;

    --radius-xs:   2px;
    --radius-sm:   6px;
    --radius-md:   10px;
    --radius-lg:   12px;

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

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

html { font-size: 16px; scroll-behavior: smooth; }
body { font-family: var(--font-body); font-size: 14px; font-weight: 400; line-height: 1.25; color: var(--color-body); background: var(--color-canvas); }

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

img { display: block; max-width: 100%; height: auto; }
ul, ol { list-style: none; }

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

/* NAV */
.site-header { position: sticky; top: 0; z-index: 100; background: var(--color-canvas); border-bottom: 1px solid var(--color-hairline); height: 64px; }
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.logo { font-family: var(--font-display); font-size: 20px; font-weight: 500; color: var(--color-ink); letter-spacing: 0; }
.logo span { color: var(--color-coral); }
.main-nav ul { display: flex; gap: var(--sp-xl); align-items: center; }
.main-nav a { font-size: 14px; font-weight: 400; color: var(--color-body); }
.main-nav a.active,
.main-nav a:hover { color: var(--color-ink); text-decoration: none; }
.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: var(--sp-xs); }
.nav-toggle span { display: block; width: 22px; height: 2px; background: var(--color-ink); border-radius: 2px; transition: transform .2s, opacity .2s; }

/* 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(--radius-lg); border: none; cursor: pointer; text-decoration: none; }
.btn-primary:hover { background: var(--color-primary-active); color: var(--color-on-primary); text-decoration: none; }
.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(--radius-lg); border: 1px solid var(--color-hairline); cursor: pointer; text-decoration: none; }
.btn-secondary:hover { text-decoration: none; border-color: var(--color-ink); }
.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(--radius-xs); border: none; cursor: pointer; }

/* HERO */
.hero-band { padding: var(--sp-section) 0; }
.hero-band .hero-label { font-size: 14px; font-weight: 500; color: var(--color-muted); letter-spacing: 0.16px; text-transform: uppercase; margin-bottom: var(--sp-md); }
.hero-band h1 { font-family: var(--font-display); font-size: 40px; font-weight: 400; line-height: 1.2; color: var(--color-ink); max-width: 640px; margin-bottom: var(--sp-lg); }
.hero-band p { font-size: 14px; color: var(--color-body); max-width: 520px; margin-bottom: var(--sp-xl); }
.hero-actions { display: flex; gap: var(--sp-md); flex-wrap: wrap; }

/* SIGNATURE CARDS */
.sig-coral { background: var(--color-coral); color: var(--color-on-primary); border-radius: var(--radius-lg); padding: var(--sp-xxl); }
.sig-coral h2 { font-family: var(--font-display); font-size: 32px; font-weight: 400; line-height: 1.2; color: var(--color-on-primary); margin-bottom: var(--sp-md); }
.sig-coral p { font-size: 14px; color: rgba(255,255,255,.85); margin-bottom: var(--sp-xl); }

.sig-forest { background: var(--color-forest); color: var(--color-on-primary); border-radius: var(--radius-lg); padding: var(--sp-xxl); }
.sig-forest h2 { font-family: var(--font-display); font-size: 32px; font-weight: 400; color: var(--color-on-primary); margin-bottom: var(--sp-md); }
.sig-forest p { font-size: 14px; color: rgba(255,255,255,.8); margin-bottom: var(--sp-xl); }

.sig-dark { background: var(--color-surface-dark); color: var(--color-on-primary); border-radius: var(--radius-lg); padding: var(--sp-xxl); }
.sig-dark h2 { font-family: var(--font-display); font-size: 32px; font-weight: 400; color: var(--color-on-primary); margin-bottom: var(--sp-md); }
.sig-dark p { font-size: 14px; color: rgba(255,255,255,.8); margin-bottom: var(--sp-xl); }

.cream-callout { background: var(--color-cream); border-radius: var(--radius-md); padding: var(--sp-lg); }
.cream-callout h3 { font-size: 24px; font-weight: 400; color: var(--color-ink); margin-bottom: var(--sp-sm); }

/* SECTIONS */
.section { padding: var(--sp-section) 0; }
.section-title { font-family: var(--font-display); font-size: 24px; font-weight: 400; color: var(--color-ink); letter-spacing: 0.12px; margin-bottom: var(--sp-xl); }
.section-sub { font-size: 14px; color: var(--color-body); margin-bottom: var(--sp-xl); max-width: 560px; }

/* ARTICLE CARDS GRID */
.articles-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--sp-lg); }
.article-card { background: var(--color-canvas); border-radius: var(--radius-md); overflow: hidden; border: 1px solid var(--color-hairline); }
.article-card img { width: 100%; aspect-ratio: 16/9; object-fit: cover; border-radius: var(--radius-md) var(--radius-md) 0 0; }
.article-card-body { padding: var(--sp-md); }
.article-card-tag { font-size: 12px; font-weight: 500; color: var(--color-muted); text-transform: uppercase; letter-spacing: 0.16px; margin-bottom: var(--sp-xs); }
.article-card h3 { font-size: 18px; font-weight: 500; line-height: 1.4; color: var(--color-ink); margin-bottom: var(--sp-xs); }
.article-card h3 a { color: var(--color-ink); }
.article-card h3 a:hover { color: var(--color-link); text-decoration: none; }
.article-card-meta { font-size: 13px; color: var(--color-muted); margin-top: var(--sp-xs); }
.article-card p { font-size: 14px; color: var(--color-body); margin-top: var(--sp-xs); }

/* DEMO GRID (colored cards) */
.demo-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--sp-lg); }
.demo-card { border-radius: var(--radius-md); padding: var(--sp-md); }
.demo-card.peach  { background: var(--color-peach); }
.demo-card.mint   { background: var(--color-mint); }
.demo-card.cream  { background: var(--color-cream); }
.demo-card h4 { font-size: 16px; font-weight: 500; color: var(--color-ink); margin-bottom: var(--sp-xs); }
.demo-card p { font-size: 14px; color: var(--color-body); }

/* ARTICLE PAGE */
.article-hero-band { padding: var(--sp-section) 0 var(--sp-xl); }
.article-hero-band .article-tag { font-size: 14px; font-weight: 500; color: var(--color-muted); text-transform: uppercase; letter-spacing: .16px; margin-bottom: var(--sp-md); }
.article-hero-band h1 { font-family: var(--font-display); font-size: 40px; font-weight: 400; line-height: 1.2; color: var(--color-ink); max-width: 760px; margin-bottom: var(--sp-lg); }
.article-hero-band .article-meta { font-size: 14px; color: var(--color-muted); }
.article-hero-img { width: 100%; max-height: 480px; object-fit: cover; border-radius: var(--radius-md); margin-bottom: var(--sp-section); }
.article-body { max-width: 760px; }
.article-body h2 { font-family: var(--font-display); font-size: 32px; font-weight: 400; color: var(--color-ink); margin: var(--sp-xl) 0 var(--sp-md); }
.article-body h3 { font-size: 24px; font-weight: 400; color: var(--color-ink); letter-spacing: .12px; margin: var(--sp-xl) 0 var(--sp-md); }
.article-body p { font-size: 14px; color: var(--color-body); margin-bottom: var(--sp-md); line-height: 1.6; }
.article-body ul { padding-left: var(--sp-lg); list-style: disc; margin-bottom: var(--sp-md); }
.article-body ul li { font-size: 14px; color: var(--color-body); margin-bottom: var(--sp-xs); line-height: 1.6; }
.article-body a { color: var(--color-link); }
.article-img-secondary { width: 100%; border-radius: var(--radius-md); margin: var(--sp-xl) 0; max-height: 400px; object-fit: cover; }

/* CONTACT FORM */
.contact-section { background: var(--color-surface-soft); padding: var(--sp-section) 0; }
.contact-form { max-width: 560px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--sp-md); margin-bottom: var(--sp-md); }
.form-group { display: flex; flex-direction: column; gap: var(--sp-xs); margin-bottom: var(--sp-md); }
.form-group label { font-size: 14px; font-weight: 500; color: var(--color-ink); }
.form-group input,
.form-group textarea { background: var(--color-canvas); color: var(--color-ink); font-size: 14px; font-family: var(--font-body); border: 1px solid var(--color-hairline); border-radius: var(--radius-sm); padding: 12px 16px; height: 44px; outline: none; width: 100%; }
.form-group input:focus,
.form-group textarea:focus { border-color: #458fff; }
.form-group textarea { height: auto; min-height: 120px; resize: vertical; }

/* CTA BAND */
.cta-band { background: var(--color-surface-strong); border-radius: var(--radius-lg); padding: var(--sp-xxl); text-align: center; margin: var(--sp-section) 0; }
.cta-band h2 { font-family: var(--font-display); font-size: 32px; font-weight: 400; color: var(--color-ink); margin-bottom: var(--sp-md); }
.cta-band p { font-size: 14px; color: var(--color-body); margin-bottom: var(--sp-xl); }

/* FOOTER */
.site-footer { background: var(--color-canvas); border-top: 1px solid var(--color-hairline); padding: var(--sp-section) 0 0; }
.footer-inner { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--sp-xxl); margin-bottom: var(--sp-section); }
.footer-col strong { display: block; font-size: 14px; font-weight: 500; color: var(--color-ink); margin-bottom: var(--sp-md); }
.footer-col p { font-size: 14px; color: var(--color-muted); margin-bottom: var(--sp-xs); line-height: 1.5; }
.footer-col ul { display: flex; flex-direction: column; gap: var(--sp-xs); }
.footer-col a { font-size: 14px; color: var(--color-muted); }
.footer-col a:hover { color: var(--color-ink); text-decoration: none; }
.footer-legal { border-top: 1px solid var(--color-hairline); padding: var(--sp-xl) 0; }
.footer-legal p { font-size: 13px; color: var(--color-muted); }

/* COOKIE BANNER */
.cookie-banner { position: fixed; bottom: 0; left: 0; right: 0; z-index: 9999; background: var(--color-surface-dark); color: var(--color-on-primary); padding: var(--sp-lg) var(--sp-xxl); display: flex; align-items: center; justify-content: space-between; gap: var(--sp-lg); flex-wrap: wrap; }
.cookie-banner p { font-size: 14px; color: rgba(255,255,255,.85); flex: 1; min-width: 260px; }
.cookie-banner a { color: #7eb3ff; }
.cookie-banner-actions { display: flex; gap: var(--sp-sm); }

/* PAGE (about/privacy/terms) */
.page-hero { padding: var(--sp-section) 0 var(--sp-xl); }
.page-hero h1 { font-family: var(--font-display); font-size: 40px; font-weight: 400; color: var(--color-ink); margin-bottom: var(--sp-md); }
.page-hero p { font-size: 14px; color: var(--color-body); max-width: 560px; }
.page-content { max-width: 760px; padding-bottom: var(--sp-section); }
.page-content h2 { font-size: 24px; font-weight: 400; color: var(--color-ink); margin: var(--sp-xl) 0 var(--sp-md); }
.page-content h3 { font-size: 18px; font-weight: 500; color: var(--color-ink); margin: var(--sp-lg) 0 var(--sp-sm); }
.page-content p, .page-content li { font-size: 14px; color: var(--color-body); line-height: 1.6; margin-bottom: var(--sp-sm); }
.page-content ul { padding-left: var(--sp-lg); list-style: disc; }
.page-content a { color: var(--color-link); }

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

@media (max-width: 768px) {
    .container { padding: 0 var(--sp-md); }
    .hero-band h1,
    .article-hero-band h1,
    .page-hero h1 { font-size: 28px; }
    .sig-coral h2, .sig-forest h2, .sig-dark h2, .cta-band h2 { font-size: 24px; }
    .articles-grid { grid-template-columns: 1fr; }
    .demo-grid     { grid-template-columns: 1fr; }
    .footer-inner  { grid-template-columns: 1fr; }
    .form-row      { grid-template-columns: 1fr; }
    .main-nav { display: none; position: absolute; top: 64px; left: 0; right: 0; background: var(--color-canvas); border-bottom: 1px solid var(--color-hairline); padding: var(--sp-md); }
    .main-nav.open { display: block; }
    .main-nav ul { flex-direction: column; gap: var(--sp-sm); }
    .nav-toggle { display: flex; }
    .cookie-banner { flex-direction: column; align-items: flex-start; }
}