@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600&family=JetBrains+Mono:wght@400&display=swap');

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

:root {
    --canvas: #f7f7f4;
    --canvas-soft: #fafaf7;
    --surface-card: #ffffff;
    --surface-strong: #e6e5e0;
    --primary: #f54e00;
    --primary-active: #d04200;
    --on-primary: #ffffff;
    --ink: #26251e;
    --body: #5a5852;
    --body-strong: #26251e;
    --muted: #807d72;
    --muted-soft: #a09c92;
    --hairline: #e6e5e0;
    --hairline-soft: #efeee8;
    --hairline-strong: #cfcdc4;
    --semantic-success: #1f8a65;
    --semantic-error: #cf2d56;
    --rounded-xs: 4px;
    --rounded-sm: 6px;
    --rounded-md: 8px;
    --rounded-lg: 12px;
    --rounded-xl: 16px;
    --rounded-pill: 9999px;
}

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

body {
    background-color: var(--canvas);
    color: var(--body);
    font-family: 'Inter', system-ui, 'Helvetica Neue', Helvetica, Arial, sans-serif;
    font-size: 16px;
    font-weight: 400;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

a { color: var(--ink); text-decoration: none; }
a:hover { color: var(--primary); }

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

.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

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

.nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.nav-logo {
    font-size: 18px;
    font-weight: 600;
    color: var(--ink);
    letter-spacing: -0.3px;
    line-height: 1.4;
}

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

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
    list-style: none;
}

.nav-links a {
    font-size: 14px;
    font-weight: 500;
    color: var(--body);
    line-height: 1.4;
    transition: color 0.15s;
}

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

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

.nav-hamburger span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--ink);
    border-radius: 2px;
    transition: all 0.2s;
}

.hero-band {
    padding: 80px 0;
    background: var(--canvas);
}

.hero-band h1 {
    font-size: 72px;
    font-weight: 400;
    line-height: 1.1;
    letter-spacing: -2.16px;
    color: var(--ink);
    max-width: 800px;
    margin-bottom: 24px;
}

.hero-band .hero-sub {
    font-size: 18px;
    font-weight: 400;
    line-height: 1.5;
    color: var(--body);
    max-width: 560px;
    margin-bottom: 40px;
}

.badge-pill {
    display: inline-block;
    background: var(--surface-strong);
    color: var(--ink);
    font-size: 11px;
    font-weight: 600;
    line-height: 1.4;
    letter-spacing: 0.88px;
    text-transform: uppercase;
    border-radius: var(--rounded-pill);
    padding: 4px 10px;
}

.section { padding: 80px 0; }

.section-label {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.88px;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 16px;
}

.section-title {
    font-size: 36px;
    font-weight: 400;
    line-height: 1.2;
    letter-spacing: -0.72px;
    color: var(--ink);
    margin-bottom: 16px;
}

.section-body {
    font-size: 16px;
    font-weight: 400;
    line-height: 1.5;
    color: var(--body);
    max-width: 640px;
}

.divider { border: none; border-top: 1px solid var(--hairline); }

.cards-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin-top: 40px;
}

.cards-grid-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    margin-top: 40px;
}

.feature-card {
    background: var(--surface-card);
    border: 1px solid var(--hairline);
    border-radius: var(--rounded-lg);
    padding: 24px;
}

.feature-card h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--ink);
    line-height: 1.4;
    margin-bottom: 12px;
}

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

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

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

.article-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.article-card-body { padding: 20px; }

.article-card-body .badge-pill { margin-bottom: 12px; }

.article-card-body h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--ink);
    line-height: 1.4;
    margin-bottom: 8px;
}

.article-card-body p {
    font-size: 14px;
    line-height: 1.5;
    color: var(--body);
    margin-bottom: 16px;
}

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

.btn-primary {
    display: inline-block;
    background: var(--primary);
    color: var(--on-primary);
    font-size: 14px;
    font-weight: 500;
    line-height: 1.0;
    padding: 10px 18px;
    height: 40px;
    border-radius: var(--rounded-md);
    border: none;
    cursor: pointer;
    transition: background 0.15s;
    text-align: center;
    display: inline-flex;
    align-items: center;
}

.btn-primary:hover { background: var(--primary-active); color: var(--on-primary); }

.btn-secondary {
    display: inline-flex;
    align-items: center;
    background: var(--surface-card);
    color: var(--ink);
    font-size: 14px;
    font-weight: 500;
    line-height: 1.0;
    padding: 10px 18px;
    height: 40px;
    border-radius: var(--rounded-md);
    border: 1px solid var(--hairline-strong);
    cursor: pointer;
    transition: border-color 0.15s;
}

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

.hero-image-block {
    margin-top: 48px;
    border-radius: var(--rounded-lg);
    overflow: hidden;
    border: 1px solid var(--hairline);
}

.hero-image-block img {
    width: 100%;
    height: 420px;
    object-fit: cover;
}

.article-hero {
    width: 100%;
    height: 400px;
    object-fit: cover;
    border-radius: var(--rounded-lg);
    border: 1px solid var(--hairline);
    margin-bottom: 40px;
}

.article-content { max-width: 760px; }

.article-content h2 {
    font-size: 26px;
    font-weight: 400;
    line-height: 1.25;
    letter-spacing: -0.325px;
    color: var(--ink);
    margin: 40px 0 16px;
}

.article-content h3 {
    font-size: 22px;
    font-weight: 400;
    line-height: 1.3;
    letter-spacing: -0.11px;
    color: var(--ink);
    margin: 32px 0 12px;
}

.article-content p {
    font-size: 16px;
    line-height: 1.6;
    color: var(--body);
    margin-bottom: 20px;
}

.article-content ul, .article-content ol {
    padding-left: 24px;
    margin-bottom: 20px;
}

.article-content li {
    font-size: 16px;
    line-height: 1.6;
    color: var(--body);
    margin-bottom: 8px;
}

.article-content a { color: var(--primary); }
.article-content a:hover { color: var(--primary-active); }

.article-meta {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 32px;
    flex-wrap: wrap;
}

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

.info-box {
    background: var(--surface-card);
    border: 1px solid var(--hairline);
    border-left: 3px solid var(--primary);
    border-radius: var(--rounded-md);
    padding: 20px 24px;
    margin: 32px 0;
}

.info-box p {
    font-size: 15px;
    line-height: 1.6;
    color: var(--body);
    margin: 0;
}

.info-box strong { color: var(--ink); }

.related-articles {
    border-top: 1px solid var(--hairline);
    padding-top: 48px;
    margin-top: 48px;
}

.contact-form-wrap {
    background: var(--surface-card);
    border: 1px solid var(--hairline);
    border-radius: var(--rounded-lg);
    padding: 40px;
    max-width: 600px;
}

.form-group { margin-bottom: 20px; }

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    color: var(--ink);
    margin-bottom: 8px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    background: var(--surface-card);
    color: var(--ink);
    font-family: 'Inter', system-ui, sans-serif;
    font-size: 16px;
    font-weight: 400;
    padding: 12px 16px;
    height: 44px;
    border: 1px solid var(--hairline-strong);
    border-radius: var(--rounded-md);
    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: var(--ink); }

.form-group input.error,
.form-group textarea.error { border-color: var(--semantic-error); }

.form-message { display: none; margin-top: 16px; padding: 12px 16px; border-radius: var(--rounded-md); font-size: 14px; font-weight: 500; }
.form-message.success { background: #e8f5f1; color: var(--semantic-success); display: block; }
.form-message.error-msg { background: #fde8ec; color: var(--semantic-error); display: block; }

.page-footer {
    background: var(--canvas);
    border-top: 1px solid var(--hairline);
    padding: 48px 0 32px;
}

.footer-inner {
    display: grid;
    grid-template-columns: 2fr repeat(4, 1fr);
    gap: 32px;
    margin-bottom: 40px;
}

.footer-brand { max-width: 240px; }
.footer-brand .nav-logo { font-size: 16px; margin-bottom: 12px; }
.footer-brand p { font-size: 14px; line-height: 1.5; color: var(--body); }

.footer-col h4 {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.88px;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 16px;
}

.footer-col ul { list-style: none; }
.footer-col ul li { margin-bottom: 8px; }
.footer-col ul li a { font-size: 14px; color: var(--body); transition: color 0.15s; }
.footer-col ul li a:hover { color: var(--ink); }

.footer-bottom {
    border-top: 1px solid var(--hairline);
    padding-top: 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
}

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

.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--ink);
    color: var(--canvas);
    padding: 16px 24px;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
}

.cookie-banner p { font-size: 14px; line-height: 1.5; color: var(--canvas); max-width: 680px; }
.cookie-banner a { color: #f7f7f4; text-decoration: underline; }

.cookie-actions { display: flex; gap: 12px; flex-shrink: 0; }

.btn-cookie-accept {
    background: var(--primary);
    color: var(--on-primary);
    font-size: 14px;
    font-weight: 500;
    padding: 8px 16px;
    border-radius: var(--rounded-md);
    border: none;
    cursor: pointer;
    transition: background 0.15s;
}

.btn-cookie-accept:hover { background: var(--primary-active); }

.btn-cookie-reject {
    background: transparent;
    color: var(--canvas);
    font-size: 14px;
    font-weight: 500;
    padding: 8px 16px;
    border-radius: var(--rounded-md);
    border: 1px solid rgba(247,247,244,0.4);
    cursor: pointer;
    transition: border-color 0.15s;
}

.btn-cookie-reject:hover { border-color: var(--canvas); }

.breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 16px 0;
    flex-wrap: wrap;
}

.breadcrumb a, .breadcrumb span {
    font-size: 13px;
    color: var(--muted);
}

.breadcrumb a:hover { color: var(--ink); }
.breadcrumb .sep { color: var(--muted-soft); }
.breadcrumb .current { color: var(--body); }

.page-hero {
    padding: 48px 0 32px;
    border-bottom: 1px solid var(--hairline);
    margin-bottom: 48px;
}

.page-hero h1 {
    font-size: 48px;
    font-weight: 400;
    line-height: 1.15;
    letter-spacing: -1.2px;
    color: var(--ink);
    margin-bottom: 16px;
    max-width: 720px;
}

.page-hero p {
    font-size: 16px;
    line-height: 1.5;
    color: var(--body);
    max-width: 560px;
}

.prose h2 {
    font-size: 26px;
    font-weight: 400;
    line-height: 1.25;
    letter-spacing: -0.325px;
    color: var(--ink);
    margin: 40px 0 16px;
}

.prose h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--ink);
    margin: 28px 0 12px;
}

.prose p {
    font-size: 16px;
    line-height: 1.6;
    color: var(--body);
    margin-bottom: 20px;
}

.prose ul, .prose ol { padding-left: 24px; margin-bottom: 20px; }
.prose li { font-size: 16px; line-height: 1.6; color: var(--body); margin-bottom: 8px; }
.prose a { color: var(--primary); }
.prose a:hover { color: var(--primary-active); }

.img-caption {
    font-size: 13px;
    color: var(--muted);
    text-align: center;
    margin-top: 8px;
}

.two-col-layout {
    display: grid;
    grid-template-columns: 1fr 340px;
    gap: 48px;
    align-items: start;
}

.sidebar-card {
    background: var(--surface-card);
    border: 1px solid var(--hairline);
    border-radius: var(--rounded-lg);
    padding: 24px;
    margin-bottom: 20px;
}

.sidebar-card h4 {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.88px;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 16px;
}

.sidebar-card ul { list-style: none; }
.sidebar-card ul li { margin-bottom: 10px; }
.sidebar-card ul li a { font-size: 14px; color: var(--body); line-height: 1.4; }
.sidebar-card ul li a:hover { color: var(--primary); }

@media (max-width: 1024px) {
    .hero-band h1 { font-size: 56px; letter-spacing: -1.4px; }
    .two-col-layout { grid-template-columns: 1fr; }
    .sidebar { order: -1; }
    .footer-inner { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    .hero-band h1 { font-size: 36px; letter-spacing: -0.9px; }
    .hero-band { padding: 48px 0; }
    .section { padding: 48px 0; }
    .section-title { font-size: 28px; }
    .cards-grid { grid-template-columns: 1fr; }
    .cards-grid-2 { grid-template-columns: 1fr; }
    .page-hero h1 { font-size: 32px; letter-spacing: -0.8px; }
    .nav-links { display: none; }
    .nav-hamburger { display: flex; }
    .nav-links.open { display: flex; flex-direction: column; position: absolute; top: 64px; left: 0; right: 0; background: var(--canvas); border-bottom: 1px solid var(--hairline); padding: 16px 24px; gap: 16px; z-index: 99; }
    .footer-inner { grid-template-columns: 1fr; }
    .footer-bottom { flex-direction: column; align-items: flex-start; }
    .contact-form-wrap { padding: 24px; }
    .cookie-banner { flex-direction: column; align-items: flex-start; }
    .article-hero { height: 240px; }
}

@media (max-width: 640px) {
    .hero-band h1 { font-size: 32px; letter-spacing: -0.8px; }
    .hero-image-block img { height: 260px; }
}