@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600&family=Inter+Display:wght@400;475;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-peach: #fcab79;
    --color-signature-mint: #a8d8c4;
    --color-signature-yellow: #f4d35e;
    --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, Helvetica, sans-serif;
    --font-display: 'Inter Display', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

html {
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
}

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:hover {
    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);
    text-decoration: none;
    white-space: nowrap;
    flex-shrink: 0;
}

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

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

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

.nav-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    flex-shrink: 0;
}

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

.btn-secondary {
    background: var(--color-canvas);
    color: var(--color-ink);
    font-family: var(--font-main);
    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;
    display: inline-block;
}

.btn-secondary:hover {
    border-color: var(--color-border-strong);
    color: var(--color-ink);
}

.btn-secondary-on-dark {
    background: var(--color-canvas);
    color: var(--color-ink);
    font-family: var(--font-main);
    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;
}

.btn-legal {
    background: var(--color-link);
    color: var(--color-on-primary);
    font-size: 13.12px;
    font-weight: 600;
    line-height: 1.2;
    padding: 12px 10px;
    border-radius: var(--rounded-xs);
    border: none;
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
}

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

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

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

.hero-band h1 {
    font-family: var(--font-display);
    font-size: 40px;
    font-weight: 400;
    line-height: 1.2;
    color: var(--color-ink);
    max-width: 680px;
    margin-bottom: var(--spacing-lg);
}

.hero-band p {
    font-size: 14px;
    font-weight: 400;
    color: var(--color-body);
    max-width: 560px;
    margin-bottom: var(--spacing-xl);
    line-height: 1.6;
}

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

/* SECTION TYPOGRAPHY */
h2 {
    font-family: var(--font-display);
    font-size: 32px;
    font-weight: 400;
    line-height: 1.2;
    color: var(--color-ink);
}

h3 {
    font-family: var(--font-main);
    font-size: 24px;
    font-weight: 400;
    line-height: 1.35;
    letter-spacing: 0.12px;
    color: var(--color-ink);
}

h4 {
    font-family: var(--font-main);
    font-size: 18px;
    font-weight: 500;
    line-height: 1.4;
    color: var(--color-ink);
}

/* EDITORIAL SECTIONS */
.section-band {
    padding: var(--spacing-section) 0;
}

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

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

.section-label {
    font-size: 14px;
    font-weight: 500;
    letter-spacing: 0.16px;
    color: var(--color-muted);
    text-transform: uppercase;
    margin-bottom: var(--spacing-sm);
}

.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-md);
}

.section-body {
    font-size: 14px;
    color: var(--color-body);
    line-height: 1.6;
    max-width: 640px;
    margin-bottom: var(--spacing-xl);
}

/* ARTICLE CARDS GRID */
.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);
    border: 1px solid var(--color-hairline);
    overflow: hidden;
    text-decoration: none;
    display: block;
    transition: border-color 0.15s;
}

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

.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: 0.16px;
    color: var(--color-muted);
    text-transform: uppercase;
    margin-bottom: var(--spacing-xs);
}

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

.article-card-meta {
    font-size: 14px;
    font-weight: 500;
    letter-spacing: 0.16px;
    color: var(--color-muted);
}

/* SIGNATURE CORAL CARD */
.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 {
    color: var(--color-on-primary);
    font-size: 32px;
    margin-bottom: var(--spacing-md);
}

.signature-coral-card p {
    color: rgba(255,255,255,0.85);
    font-size: 14px;
    line-height: 1.6;
    max-width: 560px;
    margin-bottom: var(--spacing-xl);
}

/* SIGNATURE FOREST CARD */
.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 {
    color: var(--color-on-primary);
    font-size: 32px;
    margin-bottom: var(--spacing-md);
}

.signature-forest-card p {
    color: rgba(255,255,255,0.85);
    font-size: 14px;
    line-height: 1.6;
    max-width: 560px;
    margin-bottom: var(--spacing-xl);
}

/* DARK CARD */
.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 {
    color: var(--color-on-primary);
    font-size: 32px;
    margin-bottom: var(--spacing-md);
}

.hero-card-dark p {
    color: rgba(255,255,255,0.8);
    font-size: 14px;
    line-height: 1.6;
    max-width: 560px;
    margin-bottom: var(--spacing-xl);
}

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

.demo-card {
    border-radius: var(--rounded-md);
    padding: var(--spacing-md);
    overflow: hidden;
}

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

.demo-card img {
    width: 100%;
    border-radius: var(--rounded-md);
    margin-bottom: var(--spacing-sm);
}

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

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

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

/* CTA BAND LIGHT */
.cta-band-light {
    background: var(--color-surface-strong);
    border-radius: var(--rounded-lg);
    padding: var(--spacing-xxl);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-xl);
}

.cta-band-light h2 {
    font-size: 32px;
    color: var(--color-ink);
    max-width: 480px;
}

/* FORM */
.contact-form {
    max-width: 560px;
}

.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 {
    width: 100%;
    background: var(--color-canvas);
    color: var(--color-ink);
    font-family: var(--font-main);
    font-size: 14px;
    border-radius: var(--rounded-sm);
    border: 1px solid var(--color-hairline);
    padding: 12px var(--spacing-md);
    height: 44px;
    outline: none;
    transition: border-color 0.15s;
}

.form-group 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(4, 1fr);
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-brand {
    font-family: var(--font-display);
    font-size: 18px;
    font-weight: 500;
    color: var(--color-ink);
    margin-bottom: var(--spacing-md);
    display: block;
    text-decoration: none;
}

.footer-tagline {
    font-size: 14px;
    color: var(--color-muted);
    line-height: 1.6;
    max-width: 240px;
}

.footer-col h5 {
    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 {
    margin-bottom: var(--spacing-xs);
}

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

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

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

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

.footer-legal a {
    color: var(--color-muted);
    text-decoration: none;
}

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

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

.article-breadcrumb {
    font-size: 14px;
    color: var(--color-muted);
    margin-bottom: var(--spacing-md);
}

.article-breadcrumb a {
    color: var(--color-muted);
    text-decoration: none;
}

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

.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: 0.16px;
    color: var(--color-muted);
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

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

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

.article-body p {
    font-size: 14px;
    color: var(--color-body);
    line-height: 1.75;
    margin-bottom: var(--spacing-lg);
}

.article-body h2 {
    font-size: 32px;
    font-weight: 400;
    margin-top: var(--spacing-xxl);
    margin-bottom: var(--spacing-md);
}

.article-body h3 {
    font-size: 24px;
    font-weight: 400;
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-sm);
}

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

.article-body li {
    font-size: 14px;
    color: var(--color-body);
    line-height: 1.75;
    margin-bottom: var(--spacing-xs);
}

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

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

.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-md);
}

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

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

.page-body-inner {
    max-width: 720px;
}

.page-body-inner h2 {
    font-size: 24px;
    font-weight: 400;
    margin-top: var(--spacing-xxl);
    margin-bottom: var(--spacing-md);
}

.page-body-inner p {
    font-size: 14px;
    color: var(--color-body);
    line-height: 1.75;
    margin-bottom: var(--spacing-md);
}

.page-body-inner ul {
    padding-left: var(--spacing-xl);
    margin-bottom: var(--spacing-md);
}

.page-body-inner li {
    font-size: 14px;
    color: var(--color-body);
    line-height: 1.75;
    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-md) var(--spacing-xxl);
    z-index: 999;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

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

#cookie-banner a {
    color: rgba(255,255,255,0.7);
    text-decoration: underline;
}

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

/* MOBILE NAV SHEET */
.nav-sheet {
    display: none;
    position: fixed;
    inset: 0;
    background: var(--color-canvas);
    z-index: 200;
    padding: var(--spacing-xl) var(--spacing-xxl);
    flex-direction: column;
    gap: var(--spacing-lg);
}

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

.nav-sheet-close {
    align-self: flex-end;
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--color-ink);
    padding: var(--spacing-xs);
}

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

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

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

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

/* RELATED ARTICLES */
.related-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
}

/* 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);
    }

    .cta-band-light {
        flex-direction: column;
        align-items: flex-start;
    }
}

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

    .nav-links, .nav-actions {
        display: none;
    }

    .hamburger {
        display: flex;
        margin-left: auto;
    }

    .hero-band {
        padding: 64px 0;
    }

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

    .section-band {
        padding: 64px 0;
    }

    .section-title {
        font-size: 24px;
    }

    h2 {
        font-size: 24px;
    }

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

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

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

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

    .signature-coral-card,
    .signature-forest-card,
    .hero-card-dark {
        padding: var(--spacing-xl);
    }

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

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

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

    #cookie-banner {
        padding: var(--spacing-md);
    }

    .cta-band-light {
        padding: var(--spacing-xl);
    }
}