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

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

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

body {
    font-family: "Inter Display", "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
    font-size: 14px;
    font-weight: 400;
    line-height: 1.25;
    color: var(--body-color);
    background: var(--canvas);
}

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

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

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

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

.top-nav .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
}

.nav-logo {
    font-size: 18px;
    font-weight: 500;
    color: var(--ink);
    text-decoration: none;
    letter-spacing: -0.3px;
}

.nav-logo span { color: var(--signature-coral); }

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

.nav-links a {
    font-size: 14px;
    font-weight: 400;
    color: var(--body-color);
    text-decoration: none;
}

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

.nav-right {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.btn-primary {
    background: var(--primary);
    color: var(--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;
    display: inline-block;
    transition: background 0.15s;
}

.btn-primary:hover { background: var(--primary-active); text-decoration: none; color: var(--on-primary); }

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

.btn-secondary:hover { border-color: var(--ink); text-decoration: none; color: var(--ink); }

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

.hamburger span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--ink);
    border-radius: 2px;
    transition: transform 0.2s;
}

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

.hero-band .container {
    max-width: 760px;
    margin: 0 auto;
    text-align: center;
}

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

.hero-band p {
    font-size: 14px;
    font-weight: 400;
    color: var(--body-color);
    margin-bottom: var(--spacing-xl);
    max-width: 580px;
    margin-left: auto;
    margin-right: auto;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

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

.section-band.surface-soft { background: var(--surface-soft); }
.section-band.surface-cream { background: var(--signature-cream); }

.section-title {
    font-size: 24px;
    font-weight: 400;
    line-height: 1.35;
    letter-spacing: 0.12px;
    color: var(--ink);
    margin-bottom: var(--spacing-lg);
}

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

.section-sub {
    font-size: 14px;
    color: var(--body-color);
    margin-bottom: var(--spacing-xl);
    max-width: 600px;
}

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

.article-card {
    background: var(--canvas);
    border-radius: var(--rounded-md);
    border: 1px solid var(--hairline);
    overflow: hidden;
    transition: border-color 0.15s;
}

.article-card:hover { border-color: var(--ink); }

.article-card-img {
    width: 100%;
    aspect-ratio: 16 / 9;
    object-fit: cover;
}

.article-card-body {
    padding: var(--spacing-md);
}

.article-card-tag {
    font-size: 12px;
    font-weight: 500;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: var(--spacing-xs);
    display: block;
}

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

.article-card-title a { color: var(--ink); text-decoration: none; }
.article-card-title a:hover { text-decoration: underline; }

.article-card-meta {
    font-size: 13px;
    color: var(--muted);
}

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

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

.signature-coral-card p {
    font-size: 14px;
    margin-bottom: var(--spacing-xl);
    opacity: 0.9;
    max-width: 520px;
}

.signature-coral-card .btn-secondary { border-color: rgba(255,255,255,0.5); }

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

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

.signature-forest-card p {
    font-size: 14px;
    margin-bottom: var(--spacing-xl);
    opacity: 0.9;
    max-width: 520px;
}

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

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

.hero-card-dark p {
    font-size: 14px;
    margin-bottom: var(--spacing-xl);
    opacity: 0.85;
    max-width: 480px;
    margin-left: auto;
    margin-right: auto;
}

/* 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);
    overflow: hidden;
}

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

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

.demo-card-title {
    font-size: 16px;
    font-weight: 500;
    line-height: 1.4;
    color: var(--ink);
    margin-bottom: var(--spacing-xs);
}

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

/* CTA BAND */
.cta-band-light {
    background: var(--surface-strong);
    border-radius: var(--rounded-lg);
    padding: var(--spacing-xxl);
    text-align: center;
    margin: var(--spacing-section) 0;
}

.cta-band-light h2 {
    font-size: 32px;
    font-weight: 400;
    line-height: 1.2;
    color: var(--ink);
    margin-bottom: var(--spacing-md);
}

.cta-band-light p {
    font-size: 14px;
    color: var(--body-color);
    margin-bottom: var(--spacing-xl);
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

/* CONTACT FORM */
.contact-form {
    max-width: 520px;
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    color: var(--ink);
    margin-bottom: 6px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    height: 44px;
    background: var(--canvas);
    color: var(--ink);
    font-size: 14px;
    font-family: inherit;
    padding: 12px 16px;
    border: 1px solid var(--hairline);
    border-radius: var(--rounded-sm);
    outline: none;
    transition: border-color 0.15s;
}

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

.form-group input:focus,
.form-group textarea:focus {
    border-color: #458fff;
}

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

.article-hero h1 {
    font-size: 40px;
    font-weight: 400;
    line-height: 1.2;
    color: var(--ink);
    margin-bottom: var(--spacing-md);
    max-width: 760px;
}

.article-hero-meta {
    font-size: 14px;
    color: var(--muted);
    margin-bottom: var(--spacing-xl);
}

.article-hero-img {
    width: 100%;
    max-height: 420px;
    object-fit: cover;
    border-radius: var(--rounded-md);
}

.article-body {
    max-width: 760px;
    padding: var(--spacing-xl) 0 var(--spacing-section);
}

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

.article-body h3 {
    font-size: 18px;
    font-weight: 500;
    line-height: 1.4;
    color: var(--ink);
    margin: var(--spacing-lg) 0 var(--spacing-sm);
}

.article-body p {
    font-size: 14px;
    line-height: 1.6;
    color: var(--body-color);
    margin-bottom: var(--spacing-md);
}

.article-body ul, .article-body ol {
    font-size: 14px;
    line-height: 1.6;
    color: var(--body-color);
    padding-left: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
}

.article-body li { margin-bottom: var(--spacing-xs); }

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

.article-body blockquote {
    border-left: 3px solid var(--signature-coral);
    padding-left: var(--spacing-md);
    color: var(--muted);
    font-size: 14px;
    margin: var(--spacing-lg) 0;
}

/* PAGE LAYOUT: ABOUT / PRIVACY / TERMS */
.page-hero {
    padding: var(--spacing-section) 0 var(--spacing-xl);
    background: var(--canvas);
}

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

.page-body {
    max-width: 760px;
    padding-bottom: var(--spacing-section);
}

.page-body h2 {
    font-size: 24px;
    font-weight: 400;
    color: var(--ink);
    margin: var(--spacing-xl) 0 var(--spacing-md);
}

.page-body p {
    font-size: 14px;
    line-height: 1.6;
    color: var(--body-color);
    margin-bottom: var(--spacing-md);
}

.page-body ul {
    font-size: 14px;
    line-height: 1.6;
    padding-left: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    color: var(--body-color);
}

.page-body li { margin-bottom: var(--spacing-xs); }

/* FOOTER */
.footer {
    background: var(--canvas);
    border-top: 1px solid var(--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-xl);
}

.footer-brand p {
    font-size: 14px;
    color: var(--muted);
    margin-top: var(--spacing-sm);
    max-width: 280px;
    line-height: 1.5;
}

.footer-col h4 {
    font-size: 14px;
    font-weight: 500;
    color: var(--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(--muted);
    text-decoration: none;
}

.footer-col ul li a:hover { color: var(--ink); }

.footer-bottom {
    border-top: 1px solid var(--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(--muted);
}

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

.footer-bottom-links a {
    font-size: 13px;
    color: var(--muted);
    text-decoration: none;
}

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

/* COOKIE BANNER */
.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 999;
    background: var(--surface-dark);
    color: var(--on-primary);
    padding: var(--spacing-lg) var(--spacing-xxl);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-xl);
    border-top: 1px solid rgba(255,255,255,0.1);
}

.cookie-banner p {
    font-size: 14px;
    opacity: 0.85;
    max-width: 640px;
    line-height: 1.5;
}

.cookie-banner a { color: #7eadff; }

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

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

.btn-legal-reject {
    background: transparent;
    color: var(--on-primary);
    font-size: 13.12px;
    font-weight: 600;
    padding: 12px 10px;
    border-radius: var(--rounded-xs);
    border: 1px solid rgba(255,255,255,0.35);
    cursor: pointer;
    white-space: nowrap;
}

/* BREADCRUMB */
.breadcrumb {
    font-size: 13px;
    color: var(--muted);
    padding: var(--spacing-md) 0 0;
    display: flex;
    gap: 6px;
    align-items: center;
}

.breadcrumb a { color: var(--muted); text-decoration: none; }
.breadcrumb a:hover { color: var(--ink); }
.breadcrumb span { color: var(--hairline); }

/* DISCLAIMER */
.disclaimer-bar {
    background: var(--surface-soft);
    border-top: 1px solid var(--hairline);
    border-bottom: 1px solid var(--hairline);
    padding: var(--spacing-sm) 0;
}

.disclaimer-bar p {
    font-size: 12px;
    color: var(--muted);
    text-align: center;
}

/* MOBILE NAV OVERLAY */
.mobile-nav-overlay {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 200;
    background: var(--canvas);
    flex-direction: column;
    padding: var(--spacing-xl);
}

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

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

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

.mobile-nav-links a {
    font-size: 20px;
    font-weight: 400;
    color: var(--ink);
    text-decoration: none;
}

/* 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; }
}

@media (max-width: 768px) {
    .container { padding: 0 var(--spacing-lg); }
    .nav-links { display: none; }
    .nav-right { display: none; }
    .hamburger { display: flex; }
    .hero-band h1 { font-size: 28px; }
    .section-title-lg { font-size: 24px; }
    .signature-coral-card h2 { font-size: 24px; }
    .article-grid { grid-template-columns: 1fr; }
    .demo-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; }
    .cookie-banner { flex-direction: column; align-items: flex-start; padding: var(--spacing-lg); }
    .article-hero h1 { font-size: 28px; }
    .hero-buttons { flex-direction: column; align-items: center; }
    .footer-bottom { flex-direction: column; align-items: flex-start; }
}