@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600&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-signature-coral: #aa2d00;
    --color-signature-forest: #0a2e0e;
    --color-signature-cream: #f5e9d4;
    --color-signature-peach: #fcab79;
    --color-signature-mint: #a8d8c4;
    --color-border-strong: #9297a0;

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

    --spacing-xxs: 4px;
    --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', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Fira Sans', 'Droid Sans', 'Helvetica Neue', sans-serif;
    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:hover {
    text-decoration: underline;
}

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-xxl);
}

.nav-brand {
    font-size: 18px;
    font-weight: 600;
    color: var(--color-ink);
    text-decoration: none;
    white-space: nowrap;
}

.nav-brand:hover {
    text-decoration: none;
    color: var(--color-ink);
}

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

.nav-hamburger {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
    color: var(--color-ink);
}

.nav-hamburger svg {
    width: 24px;
    height: 24px;
}

/* ── BUTTONS ── */
.btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    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;
    min-height: 48px;
}

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

.btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    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;
    min-height: 48px;
}

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

.btn-secondary-on-dark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    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;
    min-height: 48px;
}

.btn-secondary-on-dark:hover {
    background: var(--color-surface-soft);
    color: var(--color-ink);
    text-decoration: none;
}

.btn-legal {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    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 .container {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-lg);
    max-width: 720px;
}

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

.hero-band p {
    font-size: 14px;
    font-weight: 400;
    line-height: 1.5;
    color: var(--color-body);
    max-width: 560px;
}

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

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

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

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

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

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

.signature-coral-card p,
.signature-forest-card p,
.hero-card-dark p {
    font-size: 14px;
    line-height: 1.5;
    color: var(--color-on-primary);
    margin-bottom: var(--spacing-lg);
}

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

.section-soft {
    padding: var(--spacing-section) 0;
    background: var(--color-surface-soft);
}

.section-dark {
    padding: var(--spacing-section) 0;
    background: var(--color-surface-dark);
}

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

.section-title-on-dark {
    color: var(--color-on-primary);
}

.section-subtitle {
    font-size: 14px;
    font-weight: 400;
    line-height: 1.5;
    color: var(--color-body);
    max-width: 560px;
    margin-bottom: var(--spacing-xl);
}

.section-subtitle-on-dark {
    color: rgba(255,255,255,0.75);
}

.section-header {
    margin-bottom: var(--spacing-xl);
}

/* ── 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);
    overflow: hidden;
    border: 1px solid var(--color-hairline);
    display: flex;
    flex-direction: column;
}

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

.article-card-body {
    padding: var(--spacing-md);
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

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

.article-card-title {
    font-size: 18px;
    font-weight: 500;
    line-height: 1.4;
    color: var(--color-ink);
    text-decoration: none;
}

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

.article-card-meta {
    font-size: 13px;
    font-weight: 500;
    letter-spacing: 0.16px;
    color: var(--color-muted);
    margin-top: auto;
}

.article-card-excerpt {
    font-size: 14px;
    line-height: 1.5;
    color: var(--color-body);
}

/* ── 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);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

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

.demo-card h3 {
    font-size: 16px;
    font-weight: 500;
    line-height: 1.4;
    color: var(--color-ink);
}

.demo-card p {
    font-size: 14px;
    line-height: 1.5;
    color: var(--color-body);
}

/* ── CTA BAND LIGHT ── */
.cta-band-light {
    background: var(--color-surface-strong);
    border-radius: var(--rounded-lg);
    padding: var(--spacing-xxl);
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-lg);
}

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

/* ── CONTACT FORM ── */
.contact-form {
    background: var(--color-surface-soft);
    border-radius: var(--rounded-md);
    padding: var(--spacing-xl);
    max-width: 480px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xxs);
    margin-bottom: var(--spacing-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: inherit;
    border-radius: var(--rounded-sm);
    padding: 12px 16px;
    height: 44px;
    border: 1px solid var(--color-hairline);
    outline: none;
    width: 100%;
}

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

.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-md);
    margin-bottom: var(--spacing-xxl);
}

.footer-brand-col h3 {
    font-size: 16px;
    font-weight: 500;
    color: var(--color-ink);
    margin-bottom: var(--spacing-sm);
}

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

.footer-brand-col a {
    font-size: 14px;
    color: var(--color-muted);
    display: block;
    line-height: 1.8;
}

.footer-col h4 {
    font-size: 14px;
    font-weight: 500;
    color: var(--color-ink);
    margin-bottom: var(--spacing-sm);
}

.footer-col ul {
    list-style: none;
}

.footer-col ul li a {
    font-size: 14px;
    color: var(--color-muted);
    line-height: 1.8;
    display: block;
}

.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-sm);
}

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

.footer-legal-links {
    display: flex;
    gap: var(--spacing-lg);
}

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

/* ── ARTICLE PAGE ── */
.article-hero {
    background: var(--color-surface-dark-elevated, #1d1f25);
    padding: var(--spacing-section) 0;
}

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

.article-hero .meta {
    font-size: 14px;
    font-weight: 500;
    letter-spacing: 0.16px;
    color: rgba(255,255,255,0.6);
}

.article-body {
    padding: var(--spacing-section) 0;
}

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

.article-content h2 {
    font-size: 32px;
    font-weight: 400;
    line-height: 1.2;
    color: var(--color-ink);
    margin: var(--spacing-xxl) 0 var(--spacing-md);
}

.article-content h3 {
    font-size: 24px;
    font-weight: 400;
    line-height: 1.35;
    letter-spacing: 0.12px;
    color: var(--color-ink);
    margin: var(--spacing-xl) 0 var(--spacing-sm);
}

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

.article-content ul, .article-content ol {
    padding-left: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
}

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

.article-content figure {
    margin: var(--spacing-xl) 0;
}

.article-content figure img {
    width: 100%;
    border-radius: var(--rounded-md);
}

.article-content figcaption {
    font-size: 13px;
    font-weight: 500;
    letter-spacing: 0.16px;
    color: var(--color-muted);
    margin-top: var(--spacing-xs);
}

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

/* ── BREADCRUMB ── */
.breadcrumb {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 14px;
    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 {
    color: var(--color-border-strong);
}

/* ── RELATED ARTICLES ── */
.related-articles {
    padding: var(--spacing-section) 0;
    background: var(--color-surface-soft);
}

/* ── PAGES (about, privacy, terms) ── */
.page-hero {
    padding: var(--spacing-section) 0 var(--spacing-xl);
    background: var(--color-canvas);
    border-bottom: 1px solid var(--color-hairline);
}

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

.page-hero p {
    font-size: 14px;
    line-height: 1.5;
    color: var(--color-body);
    max-width: 560px;
}

.page-body {
    padding: var(--spacing-section) 0;
}

.page-content {
    max-width: 720px;
}

.page-content h2 {
    font-size: 32px;
    font-weight: 400;
    line-height: 1.2;
    color: var(--color-ink);
    margin: var(--spacing-xxl) 0 var(--spacing-md);
}

.page-content h3 {
    font-size: 24px;
    font-weight: 400;
    line-height: 1.35;
    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, .page-content ol {
    padding-left: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
}

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

.page-content a {
    color: var(--color-link);
}

/* ── CONTACT INFO ── */
.contact-info-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.contact-info-block h3 {
    font-size: 16px;
    font-weight: 500;
    color: var(--color-ink);
    margin-bottom: var(--spacing-sm);
}

.contact-info-block p, .contact-info-block address {
    font-size: 14px;
    line-height: 1.7;
    color: var(--color-body);
    font-style: normal;
}

.contact-info-block a {
    color: var(--color-link);
}

/* ── 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: 200;
    flex-wrap: wrap;
}

#cookie-banner p {
    font-size: 14px;
    line-height: 1.5;
    flex: 1;
    min-width: 240px;
}

#cookie-banner p a {
    color: rgba(255,255,255,0.75);
    text-decoration: underline;
}

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

/* ── DISCLAIMER BANNER ── */
.disclaimer-bar {
    background: var(--color-signature-cream);
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid var(--color-hairline);
}

.disclaimer-bar p {
    font-size: 13px;
    color: var(--color-body);
    text-align: center;
}

/* ── MOBILE NAV SHEET ── */
.mobile-nav-sheet {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--color-canvas);
    z-index: 150;
    padding: var(--spacing-xxl);
    flex-direction: column;
    gap: var(--spacing-lg);
}

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

.mobile-nav-close {
    align-self: flex-end;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--color-ink);
    padding: var(--spacing-xs);
}

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

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

/* ── 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;
        gap: var(--spacing-xl);
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 var(--spacing-lg);
    }

    .hero-band {
        padding: var(--spacing-xxl) 0;
    }

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

    .section, .section-soft, .section-dark {
        padding: var(--spacing-xxl) 0;
    }

    .nav-menu {
        display: none;
    }

    .nav-actions {
        display: none;
    }

    .nav-hamburger {
        display: flex;
    }

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

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

    .footer-grid {
        grid-template-columns: 1fr;
    }

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

    #cookie-banner {
        flex-direction: column;
        align-items: flex-start;
        padding: var(--spacing-lg);
    }

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

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

    .signature-coral-card h2,
    .signature-forest-card h2,
    .hero-card-dark h2 {
        font-size: 24px;
    }

    .cta-band-light h2 {
        font-size: 24px;
    }

    .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
    }
}