@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-on-primary: #ffffff;
    --color-link: #1b61c9;
    --color-link-active: #1a3866;
    --color-sig-coral: #aa2d00;
    --color-sig-forest: #0a2e0e;
    --color-sig-cream: #f5e9d4;
    --color-sig-peach: #fcab79;
    --color-sig-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;
    --font-base: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-display: 'Inter Display', 'Inter', -apple-system, sans-serif;
}

html { scroll-behavior: smooth; }

body {
    font-family: var(--font-base);
    font-size: 14px;
    font-weight: 400;
    line-height: 1.6;
    color: var(--color-body);
    background: var(--color-canvas);
}

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

@media (max-width: 767px) {
    .container { padding: 0 var(--spacing-md); }
}

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

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

.site-logo {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--color-ink);
    font-family: var(--font-display);
    font-size: 18px;
    font-weight: 500;
    text-decoration: none;
}

.logo-bell {
    width: 28px;
    height: 28px;
    background: var(--color-sig-coral);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 10px;
    flex-shrink: 0;
}

.logo-dot { color: var(--color-muted); }

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

.main-nav a {
    font-size: 14px;
    font-weight: 400;
    color: var(--color-body);
    text-decoration: none;
    transition: color .15s;
}

.main-nav a:hover { color: var(--color-ink); }
.main-nav 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: 4px;
}

.nav-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--color-ink);
    border-radius: 2px;
    transition: transform .2s, opacity .2s;
}

@media (max-width: 767px) {
    .nav-toggle { display: flex; }
    .main-nav {
        display: none;
        position: fixed;
        inset: 64px 0 0 0;
        background: var(--color-canvas);
        flex-direction: column;
        align-items: flex-start;
        padding: var(--spacing-xl);
        gap: var(--spacing-lg);
        border-top: 1px solid var(--color-hairline);
        z-index: 99;
        overflow-y: auto;
    }
    .main-nav.is-open { display: flex; }
    .main-nav a { font-size: 18px; }
}

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

.hero-band .container { max-width: 760px; }

.hero-kicker {
    font-size: 13px;
    font-weight: 500;
    letter-spacing: .06em;
    text-transform: uppercase;
    color: var(--color-muted);
    margin-bottom: var(--spacing-md);
}

.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-lg);
}

.hero-sub {
    font-size: 16px;
    font-weight: 400;
    color: var(--color-body);
    max-width: 580px;
    line-height: 1.6;
}

@media (max-width: 767px) {
    .hero-h1 { font-size: 28px; }
    .hero-band { padding: 56px 0; }
}

.section { padding: var(--spacing-section) 0; }
.section-sm { padding: 64px 0; }

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

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

.section-h2 {
    font-family: var(--font-display);
    font-size: 32px;
    font-weight: 400;
    line-height: 1.2;
    color: var(--color-ink);
    margin-bottom: var(--spacing-lg);
}

@media (max-width: 767px) {
    .section-h2 { font-size: 24px; }
}

.articles-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
}

@media (max-width: 1023px) {
    .articles-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 767px) {
    .articles-grid { grid-template-columns: 1fr; }
}

.article-card {
    background: var(--color-canvas);
    border-radius: var(--rounded-md);
    border: 1px solid var(--color-hairline);
    overflow: hidden;
    text-decoration: none;
    color: inherit;
    display: flex;
    flex-direction: column;
    transition: box-shadow .15s;
}

.article-card:hover {
    box-shadow: 0 4px 16px rgba(24,29,38,.08);
    text-decoration: none;
}

.article-card-img {
    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: 11px;
    font-weight: 500;
    letter-spacing: .08em;
    text-transform: uppercase;
    color: var(--color-muted);
}

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

.article-card-excerpt {
    font-size: 14px;
    color: var(--color-body);
    flex: 1;
}

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

.sig-coral-card {
    background: var(--color-sig-coral);
    border-radius: var(--rounded-lg);
    padding: var(--spacing-xxl);
    color: var(--color-on-primary);
    margin: var(--spacing-section) 0;
}

.sig-coral-card .section-h2 {
    color: var(--color-on-primary);
    font-size: 32px;
}

.sig-coral-card p {
    color: rgba(255,255,255,.88);
    max-width: 560px;
    margin-bottom: var(--spacing-xl);
}

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

.sig-dark-card .section-h2 {
    color: var(--color-on-primary);
}

.sig-dark-card p {
    color: rgba(255,255,255,.8);
    max-width: 560px;
    margin-bottom: var(--spacing-xl);
}

.sig-cream-band {
    background: var(--color-sig-cream);
    padding: var(--spacing-section) 0;
}

.sig-cream-band .section-h2 { color: var(--color-ink); }

.demo-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
}

@media (max-width: 1023px) {
    .demo-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 767px) {
    .demo-grid { grid-template-columns: 1fr; }
}

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

.demo-card:nth-child(1) { background: var(--color-sig-peach); }
.demo-card:nth-child(2) { background: var(--color-sig-mint); }
.demo-card:nth-child(3) { background: var(--color-sig-cream); }

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

.demo-card-label {
    font-size: 16px;
    font-weight: 500;
    color: var(--color-ink);
    margin-bottom: 4px;
}

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

.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);
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: background .15s;
}

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

.btn-secondary {
    display: inline-block;
    background: var(--color-canvas);
    color: var(--color-ink);
    font-size: 16px;
    font-weight: 500;
    line-height: 1.4;
    padding: 14px 22px;
    border-radius: var(--rounded-lg);
    border: 1px solid var(--color-hairline);
    text-decoration: none;
    cursor: pointer;
    transition: border-color .15s;
}

.btn-secondary:hover { text-decoration: none; border-color: #aaa; }

.btn-secondary-on-dark {
    display: inline-block;
    background: var(--color-canvas);
    color: var(--color-ink);
    font-size: 16px;
    font-weight: 500;
    padding: 14px 22px;
    border-radius: var(--rounded-lg);
    text-decoration: none;
}

.btn-secondary-on-dark:hover { text-decoration: none; }

.cta-band-light {
    background: var(--color-surface-strong);
    border-radius: var(--rounded-lg);
    padding: var(--spacing-xxl);
    text-align: center;
}

.cta-band-light .section-h2 { margin-bottom: var(--spacing-md); }

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

.contact-form {
    max-width: 560px;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.form-group { display: flex; flex-direction: column; gap: 6px; }

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

.form-group input,
.form-group textarea {
    font-family: var(--font-base);
    font-size: 14px;
    color: var(--color-ink);
    background: var(--color-canvas);
    border: 1px solid var(--color-hairline);
    border-radius: var(--rounded-sm);
    padding: 12px 16px;
    height: 44px;
    outline: none;
    transition: border-color .15s;
}

.form-group textarea { height: auto; min-height: 96px; resize: vertical; }

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

.page-hero {
    padding: var(--spacing-section) 0 64px;
    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);
}

@media (max-width: 767px) {
    .page-hero-h1 { font-size: 28px; }
}

.page-hero-lead {
    font-size: 16px;
    color: var(--color-body);
    max-width: 600px;
}

.prose {
    max-width: 720px;
    line-height: 1.75;
    color: var(--color-body);
}

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

.prose h3 {
    font-size: 18px;
    font-weight: 500;
    color: var(--color-ink);
    margin: var(--spacing-lg) 0 var(--spacing-sm);
}

.prose p { margin-bottom: var(--spacing-md); }
.prose ul, .prose ol { padding-left: 1.4em; margin-bottom: var(--spacing-md); }
.prose li { margin-bottom: 4px; }

.prose a {
    color: var(--color-link);
    text-decoration: underline;
}

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

.article-meta {
    font-size: 13px;
    color: var(--color-muted);
    margin-bottom: var(--spacing-lg);
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    align-items: center;
}

.article-tag {
    font-size: 11px;
    font-weight: 500;
    letter-spacing: .08em;
    text-transform: uppercase;
    background: var(--color-surface-soft);
    border-radius: var(--rounded-sm);
    padding: 3px 8px;
    color: var(--color-muted);
}

.article-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);
}

@media (max-width: 767px) {
    .article-h1 { font-size: 26px; }
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
    color: var(--color-muted);
    text-decoration: none;
    margin-bottom: var(--spacing-xl);
}

.back-link:hover { color: var(--color-ink); text-decoration: none; }

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

.articles-list-hero h1 {
    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);
}

.articles-list-hero p {
    font-size: 16px;
    color: rgba(255,255,255,.75);
    max-width: 520px;
}

@media (max-width: 767px) {
    .articles-list-hero h1 { font-size: 32px; }
}

.site-footer {
    background: var(--color-canvas);
    border-top: 1px solid var(--color-hairline);
    padding: var(--spacing-section) 0 var(--spacing-xl);
}

.footer-inner {}

.footer-cols {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

@media (max-width: 767px) {
    .footer-cols { grid-template-columns: 1fr; gap: var(--spacing-lg); }
}

.footer-brand {
    font-family: var(--font-display);
    font-size: 18px;
    font-weight: 500;
    color: var(--color-ink);
    margin-bottom: var(--spacing-sm);
}

.footer-desc {
    font-size: 14px;
    color: var(--color-muted);
    line-height: 1.6;
    margin-bottom: var(--spacing-md);
}

.footer-address {
    font-style: normal;
    font-size: 13px;
    color: var(--color-muted);
    line-height: 1.7;
}

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

.footer-col-title {
    font-size: 13px;
    font-weight: 500;
    letter-spacing: .06em;
    text-transform: uppercase;
    color: var(--color-muted);
    margin-bottom: var(--spacing-md);
}

.footer-col ul { list-style: none; }
.footer-col ul li { margin-bottom: 8px; }
.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 {
    border-top: 1px solid var(--color-hairline);
    padding-top: var(--spacing-lg);
}

.footer-bottom p {
    font-size: 13px;
    color: var(--color-muted);
    margin-bottom: 4px;
}

.footer-disclaimer {
    font-size: 12px;
    color: #9297a0;
}

.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);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-lg);
    z-index: 200;
    flex-wrap: wrap;
}

.cookie-banner p {
    font-size: 13px;
    color: rgba(255,255,255,.85);
    flex: 1;
    min-width: 240px;
}

.cookie-banner p a { color: rgba(255,255,255,.85); text-decoration: underline; }

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

.btn-cookie-accept {
    background: var(--color-link);
    color: #fff;
    font-size: 13.12px;
    font-weight: 600;
    padding: 12px 10px;
    border-radius: var(--rounded-xs);
    border: none;
    cursor: pointer;
}

.btn-cookie-reject {
    background: transparent;
    color: rgba(255,255,255,.7);
    font-size: 13.12px;
    font-weight: 600;
    padding: 12px 10px;
    border-radius: var(--rounded-xs);
    border: 1px solid rgba(255,255,255,.3);
    cursor: pointer;
}

.cookie-banner.hidden { display: none; }

.divider {
    border: none;
    border-top: 1px solid var(--color-hairline);
    margin: var(--spacing-xl) 0;
}

.text-muted { color: var(--color-muted); }
.text-ink { color: var(--color-ink); }
.mt-lg { margin-top: var(--spacing-lg); }
.mt-xl { margin-top: var(--spacing-xl); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mb-xl { margin-bottom: var(--spacing-xl); }