*,*::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-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;
    --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;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-display: 'Inter Display', 'Inter', -apple-system, sans-serif;
    --max-width: 1280px;
}

html { scroll-behavior: smooth; }

body {
    font-family: var(--font-body);
    font-size: 14px;
    font-weight: 400;
    line-height: 1.6;
    color: var(--color-body);
    background: 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: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-xxl);
}

.site-nav {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--color-canvas);
    border-bottom: 1px solid var(--color-hairline);
    height: 64px;
}

.nav-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-xxl);
    height: 100%;
    display: flex;
    align-items: center;
    gap: var(--spacing-xxl);
}

.nav-brand {
    font-family: var(--font-display);
    font-size: 18px;
    font-weight: 500;
    color: var(--color-ink);
    letter-spacing: -0.3px;
    flex-shrink: 0;
}
.nav-brand:hover { text-decoration: none; color: var(--color-primary); }

.nav-links {
    display: flex;
    list-style: none;
    gap: var(--spacing-lg);
    margin-left: auto;
}

.nav-links a {
    font-size: 14px;
    font-weight: 400;
    color: var(--color-muted);
}
.nav-links a:hover { color: var(--color-ink); text-decoration: none; }
.nav-links a[aria-current="page"] { color: var(--color-ink); font-weight: 500; }

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
    margin-left: auto;
}
.nav-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--color-ink);
    border-radius: 2px;
    transition: transform 0.2s, opacity 0.2s;
}

.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(--rounded-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(--rounded-lg);
    border: 1px solid var(--color-hairline);
    cursor: pointer;
    text-decoration: none;
}
.btn-secondary:hover { border-color: var(--color-ink); color: var(--color-ink); text-decoration: none; }

.btn-legal {
    background: var(--color-link);
    color: var(--color-on-primary);
    font-size: 13px;
    font-weight: 600;
    padding: 12px 10px;
    border-radius: var(--rounded-xs);
    border: none;
    cursor: pointer;
    min-width: 90px;
}
.btn-legal--outline {
    background: transparent;
    color: var(--color-link);
    border: 1px solid var(--color-link);
}

.hero-band {
    padding: var(--spacing-section) 0;
    background: var(--color-canvas);
}
.hero-band .container { max-width: 800px; }
.hero-kicker {
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--color-muted);
    margin-bottom: var(--spacing-md);
}
.hero-title {
    font-family: var(--font-display);
    font-size: 40px;
    font-weight: 400;
    line-height: 1.2;
    color: var(--color-ink);
    margin-bottom: var(--spacing-lg);
}
.hero-sub {
    font-size: 18px;
    font-weight: 400;
    line-height: 1.5;
    color: var(--color-body);
    margin-bottom: var(--spacing-xxl);
    max-width: 600px;
}
.hero-actions { display: flex; gap: var(--spacing-md); flex-wrap: wrap; }

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

.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-sub {
    font-size: 16px;
    color: var(--color-body);
    margin-bottom: var(--spacing-xxl);
    max-width: 560px;
}

.card-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;
    display: flex;
    flex-direction: column;
}
.article-card__img {
    aspect-ratio: 16/9;
    overflow: hidden;
}
.article-card__img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.article-card__body {
    padding: var(--spacing-md);
    flex: 1;
    display: flex;
    flex-direction: column;
}
.article-card__tag {
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-muted);
    margin-bottom: var(--spacing-xs);
}
.article-card__title {
    font-size: 18px;
    font-weight: 500;
    line-height: 1.4;
    color: var(--color-ink);
    margin-bottom: var(--spacing-xs);
}
.article-card__excerpt {
    font-size: 14px;
    color: var(--color-body);
    line-height: 1.5;
    flex: 1;
}
.article-card__meta {
    margin-top: var(--spacing-md);
    font-size: 13px;
    color: var(--color-muted);
}
.article-card a {
    color: inherit;
}
.article-card a:hover .article-card__title { color: var(--color-link); text-decoration: none; }

.signature-coral {
    background: var(--color-signature-coral);
    border-radius: var(--rounded-lg);
    padding: var(--spacing-xxl);
    color: var(--color-on-primary);
}
.signature-coral .section-title { color: var(--color-on-primary); }
.signature-coral .section-sub { color: rgba(255,255,255,0.85); }

.signature-forest {
    background: var(--color-signature-forest);
    border-radius: var(--rounded-lg);
    padding: var(--spacing-xxl);
    color: var(--color-on-primary);
}
.signature-forest .section-title { color: var(--color-on-primary); }
.signature-forest .section-sub { color: rgba(255,255,255,0.8); }

.signature-dark {
    background: var(--color-surface-dark);
    border-radius: var(--rounded-lg);
    padding: var(--spacing-xxl);
    color: var(--color-on-primary);
}
.signature-dark .section-title { color: var(--color-on-primary); }
.signature-dark .section-sub { color: rgba(255,255,255,0.75); }

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

.cta-band {
    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);
    flex-wrap: wrap;
}
.cta-band__text .section-title { margin-bottom: var(--spacing-xs); }

.page-hero {
    background: var(--color-surface-dark);
    padding: var(--spacing-section) 0;
    position: relative;
    overflow: hidden;
}
.page-hero::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: repeating-linear-gradient(
        90deg,
        rgba(170,45,0,0.18) 0px, rgba(170,45,0,0.18) 12px,
        rgba(10,46,14,0.18) 12px, rgba(10,46,14,0.18) 28px,
        rgba(245,233,212,0.08) 28px, rgba(245,233,212,0.08) 36px,
        rgba(252,171,121,0.14) 36px, rgba(252,171,121,0.14) 52px,
        transparent 52px, transparent 80px
    );
}
.page-hero .container { position: relative; z-index: 1; }
.page-hero__title {
    font-family: var(--font-display);
    font-size: 48px;
    font-weight: 500;
    line-height: 1.1;
    color: var(--color-on-primary);
    margin-bottom: var(--spacing-md);
}
.page-hero__sub {
    font-size: 18px;
    color: rgba(255,255,255,0.8);
    max-width: 560px;
}

.article-layout {
    display: grid;
    grid-template-columns: 1fr 280px;
    gap: var(--spacing-xxl);
    padding: var(--spacing-section) 0;
    align-items: start;
}
.article-content h1 {
    font-family: var(--font-display);
    font-size: 40px;
    font-weight: 400;
    line-height: 1.2;
    color: var(--color-ink);
    margin-bottom: var(--spacing-lg);
}
.article-content h2 {
    font-size: 24px;
    font-weight: 400;
    line-height: 1.35;
    color: var(--color-ink);
    margin-top: var(--spacing-xxl);
    margin-bottom: var(--spacing-md);
}
.article-content h3 {
    font-size: 18px;
    font-weight: 500;
    line-height: 1.4;
    color: var(--color-ink);
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-xs);
}
.article-content p {
    margin-bottom: var(--spacing-md);
    line-height: 1.7;
    font-size: 15px;
    color: var(--color-body);
}
.article-content figure {
    margin: var(--spacing-xl) 0;
    border-radius: var(--rounded-md);
    overflow: hidden;
}
.article-content figure img {
    width: 100%;
    border-radius: var(--rounded-md);
}
.article-content figcaption {
    font-size: 13px;
    color: var(--color-muted);
    padding: var(--spacing-xs) 0;
}
.article-content ul, .article-content ol {
    margin: 0 0 var(--spacing-md) var(--spacing-xl);
}
.article-content li {
    margin-bottom: var(--spacing-xs);
    font-size: 15px;
    color: var(--color-body);
    line-height: 1.6;
}
.article-meta {
    font-size: 13px;
    color: var(--color-muted);
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--color-hairline);
}

.article-sidebar { position: sticky; top: 80px; }
.sidebar-box {
    background: var(--color-surface-soft);
    border-radius: var(--rounded-md);
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-lg);
}
.sidebar-box h4 {
    font-size: 16px;
    font-weight: 500;
    color: var(--color-ink);
    margin-bottom: var(--spacing-md);
}
.sidebar-box ul { list-style: none; }
.sidebar-box ul li { margin-bottom: var(--spacing-xs); }
.sidebar-box ul a { font-size: 14px; color: var(--color-muted); }
.sidebar-box ul a:hover { color: var(--color-link); }

.breadcrumb {
    font-size: 13px;
    color: var(--color-muted);
    padding: var(--spacing-md) 0;
    display: flex;
    gap: var(--spacing-xs);
    align-items: center;
}
.breadcrumb a { color: var(--color-muted); }
.breadcrumb a:hover { color: var(--color-link); }
.breadcrumb span { opacity: 0.5; }

.contact-form {
    background: var(--color-surface-soft);
    border-radius: var(--rounded-md);
    padding: var(--spacing-xxl);
    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%;
    height: 44px;
    background: var(--color-canvas);
    border: 1px solid var(--color-hairline);
    border-radius: var(--rounded-sm);
    padding: 0 var(--spacing-md);
    font-size: 14px;
    color: var(--color-ink);
    font-family: var(--font-body);
}
.form-group input:focus {
    outline: none;
    border-color: #458fff;
    box-shadow: 0 0 0 2px rgba(69,143,255,0.2);
}
.form-group textarea {
    width: 100%;
    background: var(--color-canvas);
    border: 1px solid var(--color-hairline);
    border-radius: var(--rounded-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 14px;
    color: var(--color-ink);
    font-family: var(--font-body);
    resize: vertical;
    min-height: 100px;
}
.form-group textarea:focus {
    outline: none;
    border-color: #458fff;
}

.prose-page { padding: var(--spacing-section) 0; }
.prose-page h1 {
    font-family: var(--font-display);
    font-size: 40px;
    font-weight: 400;
    color: var(--color-ink);
    margin-bottom: var(--spacing-lg);
}
.prose-page h2 {
    font-size: 24px;
    font-weight: 400;
    color: var(--color-ink);
    margin-top: var(--spacing-xxl);
    margin-bottom: var(--spacing-md);
}
.prose-page p {
    font-size: 15px;
    line-height: 1.7;
    color: var(--color-body);
    margin-bottom: var(--spacing-md);
    max-width: 720px;
}
.prose-page ul { margin: 0 0 var(--spacing-md) var(--spacing-xl); }
.prose-page li { font-size: 15px; line-height: 1.6; color: var(--color-body); margin-bottom: var(--spacing-xs); }

.site-footer {
    background: var(--color-canvas);
    border-top: 1px solid var(--color-hairline);
    padding: var(--spacing-section) 0 0;
}
.footer-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-xxl);
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--spacing-xxl);
    margin-bottom: var(--spacing-xxl);
}
.footer-brand {
    font-family: var(--font-display);
    font-size: 18px;
    font-weight: 500;
    color: var(--color-ink);
    display: block;
    margin-bottom: var(--spacing-md);
}
.footer-col p {
    font-size: 14px;
    color: var(--color-muted);
    line-height: 1.6;
    margin-bottom: var(--spacing-md);
}
.footer-contact { font-size: 14px; color: var(--color-muted); }
.footer-contact a { color: var(--color-muted); }
.footer-contact a:hover { color: var(--color-link); }
.footer-col strong {
    display: block;
    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 a { font-size: 14px; color: var(--color-muted); }
.footer-col ul a:hover { color: var(--color-link); }
.footer-legal {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: var(--spacing-lg) var(--spacing-xxl);
    border-top: 1px solid var(--color-hairline);
    font-size: 13px;
    color: var(--color-muted);
}
.footer-legal a { color: var(--color-muted); }
.footer-legal p { margin-bottom: var(--spacing-xs); }

.cookie-banner {
    position: fixed;
    bottom: var(--spacing-lg);
    left: var(--spacing-lg);
    right: var(--spacing-lg);
    background: var(--color-surface-dark);
    color: var(--color-on-primary);
    border-radius: var(--rounded-md);
    padding: var(--spacing-lg) var(--spacing-xl);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-xl);
    z-index: 999;
    box-shadow: 0 8px 32px rgba(0,0,0,0.18);
    max-width: 900px;
    margin: 0 auto;
}
.cookie-banner p { font-size: 14px; line-height: 1.5; flex: 1; }
.cookie-actions { display: flex; gap: var(--spacing-xs); flex-shrink: 0; }
.cookie-banner.hidden { display: none; }

.tag-chip {
    display: inline-block;
    background: var(--color-signature-cream);
    color: var(--color-ink);
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    padding: 4px 10px;
    border-radius: var(--rounded-sm);
    margin-right: var(--spacing-xs);
    margin-bottom: var(--spacing-xs);
}

.demo-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-md);
    margin-top: var(--spacing-xxl);
}
.demo-card {
    border-radius: var(--rounded-md);
    padding: var(--spacing-md);
    font-size: 14px;
    font-weight: 500;
    color: var(--color-ink);
}
.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--coral { background: var(--color-signature-coral); color: #fff; }
.demo-card p { font-size: 13px; font-weight: 400; margin-top: var(--spacing-xs); }

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

@media (max-width: 1024px) {
    .card-grid { grid-template-columns: repeat(2, 1fr); }
    .article-layout { grid-template-columns: 1fr; }
    .article-sidebar { position: static; }
    .footer-inner { grid-template-columns: 1fr 1fr; }
    .demo-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    :root { --spacing-section: 64px; }
    .container { padding: 0 var(--spacing-md); }
    .nav-inner { padding: 0 var(--spacing-md); }
    .nav-links { display: none; flex-direction: column; position: absolute; top: 64px; left: 0; right: 0; background: var(--color-canvas); border-bottom: 1px solid var(--color-hairline); padding: var(--spacing-md); gap: var(--spacing-md); }
    .nav-links.is-open { display: flex; }
    .nav-toggle { display: flex; }
    .hero-title { font-size: 28px; }
    .page-hero__title { font-size: 32px; }
    .section-title { font-size: 24px; }
    .card-grid { grid-template-columns: 1fr; }
    .footer-inner { grid-template-columns: 1fr; gap: var(--spacing-xl); }
    .cta-band { flex-direction: column; align-items: flex-start; }
    .cookie-banner { flex-direction: column; align-items: flex-start; }
    .demo-grid { grid-template-columns: 1fr; }
    .footer-inner { padding: 0 var(--spacing-md); }
    .footer-legal { padding: var(--spacing-lg) var(--spacing-md); }
    .signature-coral, .signature-forest, .signature-dark { padding: var(--spacing-xl); }
}