*, *::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;
    --ink: #26251e;
    --body: #5a5852;
    --body-strong: #26251e;
    --muted: #807d72;
    --muted-soft: #a09c92;
    --on-primary: #ffffff;
    --hairline: #e6e5e0;
    --hairline-soft: #efeee8;
    --hairline-strong: #cfcdc4;
    --success: #1f8a65;
    --error: #cf2d56;
    --font-sans: 'Inter', system-ui, 'Helvetica Neue', Helvetica, Arial, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
}

html { font-size: 16px; scroll-behavior: smooth; }
body { background: var(--canvas); color: var(--body); font-family: var(--font-sans); font-weight: 400; line-height: 1.5; }

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

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

.site-header {
    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%;
}

.site-logo {
    font-size: 18px;
    font-weight: 600;
    color: var(--ink);
    letter-spacing: -0.02em;
}
.site-logo span { color: var(--primary); }

.site-nav { display: flex; gap: 28px; align-items: center; }
.site-nav a { font-size: 14px; font-weight: 500; color: var(--body); line-height: 1.4; }
.site-nav a:hover { color: var(--ink); }

.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(--ink); border-radius: 2px; }

.hero-band {
    padding: 80px 0 64px;
    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: 760px;
    margin-bottom: 20px;
}
.hero-band p {
    font-size: 16px;
    color: var(--body);
    max-width: 560px;
    line-height: 1.5;
    margin-bottom: 36px;
}

.hero-meta {
    display: flex;
    gap: 12px;
    align-items: center;
    flex-wrap: wrap;
    margin-bottom: 56px;
}

.badge-pill {
    background: var(--surface-strong);
    color: var(--ink);
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.88px;
    text-transform: uppercase;
    border-radius: 9999px;
    padding: 4px 10px;
    display: inline-block;
}

.section { padding: 80px 0; }
.section-alt { background: var(--canvas-soft); }
.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;
    letter-spacing: -0.72px;
    color: var(--ink);
    line-height: 1.2;
    margin-bottom: 16px;
}
.section-subtitle {
    font-size: 16px;
    color: var(--body);
    max-width: 560px;
    margin-bottom: 48px;
    line-height: 1.5;
}

.articles-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.article-card {
    background: var(--surface-card);
    border: 1px solid var(--hairline);
    border-radius: 12px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: border-color 0.15s;
}
.article-card:hover { border-color: var(--hairline-strong); }

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

.article-card-body {
    padding: 20px 24px 24px;
    flex: 1;
    display: flex;
    flex-direction: column;
}
.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: 10px;
}
.article-card-body p {
    font-size: 14px;
    color: var(--body);
    line-height: 1.5;
    flex: 1;
    margin-bottom: 16px;
}
.article-card-meta {
    font-size: 13px;
    color: var(--muted);
    display: flex;
    gap: 12px;
}

.article-link {
    display: block;
    font-size: 14px;
    font-weight: 500;
    color: var(--primary);
    margin-top: 4px;
}
.article-link:hover { color: var(--primary-active); }

.btn-primary {
    display: inline-block;
    background: var(--primary);
    color: var(--on-primary);
    font-size: 14px;
    font-weight: 500;
    padding: 10px 18px;
    height: 40px;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    line-height: 1.0;
    text-decoration: none;
}
.btn-primary:hover { background: var(--primary-active); color: var(--on-primary); }

.btn-secondary {
    display: inline-block;
    background: var(--surface-card);
    color: var(--ink);
    font-size: 14px;
    font-weight: 500;
    padding: 10px 18px;
    height: 40px;
    border-radius: 8px;
    border: 1px solid var(--hairline-strong);
    cursor: pointer;
    line-height: 1.0;
    text-decoration: none;
}
.btn-secondary:hover { border-color: var(--ink); color: var(--ink); }

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 48px;
}

.feature-card {
    background: var(--surface-card);
    border: 1px solid var(--hairline);
    border-radius: 12px;
    padding: 24px;
}
.feature-card h3 {
    font-size: 16px;
    font-weight: 600;
    color: var(--ink);
    margin-bottom: 8px;
}
.feature-card p { font-size: 14px; color: var(--body); line-height: 1.5; }

.article-layout {
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: 48px;
    align-items: start;
}

.article-main h1 {
    font-size: 36px;
    font-weight: 400;
    letter-spacing: -0.72px;
    color: var(--ink);
    line-height: 1.2;
    margin-bottom: 20px;
}

.article-meta {
    display: flex;
    gap: 16px;
    align-items: center;
    flex-wrap: wrap;
    margin-bottom: 32px;
    font-size: 13px;
    color: var(--muted);
    padding-bottom: 24px;
    border-bottom: 1px solid var(--hairline);
}

.article-main img.featured-image {
    width: 100%;
    height: 380px;
    object-fit: cover;
    border-radius: 12px;
    margin-bottom: 32px;
}

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

.article-content h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--ink);
    margin: 28px 0 12px;
}

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

.article-content ul, .article-content ol {
    padding-left: 24px;
    margin-bottom: 16px;
}
.article-content li {
    font-size: 16px;
    color: var(--body);
    line-height: 1.5;
    margin-bottom: 6px;
}

.article-content a {
    color: var(--primary);
    text-decoration: underline;
    text-underline-offset: 2px;
}
.article-content a:hover { color: var(--primary-active); }

.info-box {
    background: var(--canvas-soft);
    border: 1px solid var(--hairline);
    border-left: 4px solid var(--primary);
    border-radius: 8px;
    padding: 20px 24px;
    margin: 28px 0;
}
.info-box p { margin-bottom: 0; font-size: 15px; }
.info-box strong { color: var(--ink); }

.step-list { list-style: none; padding: 0; margin-bottom: 20px; }
.step-list li {
    display: flex;
    gap: 16px;
    margin-bottom: 20px;
    align-items: flex-start;
}
.step-num {
    min-width: 32px;
    height: 32px;
    background: var(--ink);
    color: var(--canvas);
    border-radius: 9999px;
    font-size: 13px;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    margin-top: 2px;
}
.step-content p { margin-bottom: 0; }
.step-content strong { color: var(--ink); font-size: 15px; }

.sidebar { position: sticky; top: 88px; }

.sidebar-card {
    background: var(--surface-card);
    border: 1px solid var(--hairline);
    border-radius: 12px;
    padding: 24px;
    margin-bottom: 24px;
}
.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; padding: 0; }
.sidebar-card ul li { margin-bottom: 8px; }
.sidebar-card ul li a { font-size: 14px; color: var(--body); }
.sidebar-card ul li a:hover { color: var(--primary); }
.sidebar-card p { font-size: 14px; color: var(--body); line-height: 1.5; }

.page-header {
    padding: 64px 0 48px;
    border-bottom: 1px solid var(--hairline);
    margin-bottom: 64px;
}
.page-header h1 {
    font-size: 36px;
    font-weight: 400;
    letter-spacing: -0.72px;
    color: var(--ink);
    margin-bottom: 12px;
}
.page-header p { font-size: 16px; color: var(--body); max-width: 560px; }

.prose h2 {
    font-size: 22px;
    font-weight: 400;
    color: var(--ink);
    margin: 40px 0 14px;
    letter-spacing: -0.11px;
}
.prose p { font-size: 16px; color: var(--body); line-height: 1.5; margin-bottom: 16px; }
.prose ul { padding-left: 24px; margin-bottom: 16px; }
.prose li { font-size: 16px; color: var(--body); line-height: 1.5; margin-bottom: 6px; }

.contact-form-wrap {
    background: var(--surface-card);
    border: 1px solid var(--hairline);
    border-radius: 12px;
    padding: 40px;
    max-width: 600px;
    margin: 0 auto;
}
.contact-form-wrap h2 {
    font-size: 22px;
    font-weight: 400;
    color: var(--ink);
    letter-spacing: -0.11px;
    margin-bottom: 24px;
}

.form-group { margin-bottom: 20px; }
.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    color: var(--ink);
    margin-bottom: 6px;
}
.form-group input,
.form-group textarea {
    width: 100%;
    background: var(--surface-card);
    color: var(--ink);
    border: 1px solid var(--hairline-strong);
    border-radius: 8px;
    padding: 12px 16px;
    font-family: var(--font-sans);
    font-size: 16px;
    height: 44px;
    outline: none;
    transition: border-color 0.15s;
}
.form-group input:focus,
.form-group textarea:focus { border-color: var(--ink); }
.form-group textarea { height: auto; min-height: 100px; resize: vertical; }

.form-msg {
    display: none;
    padding: 12px 16px;
    border-radius: 8px;
    font-size: 14px;
    margin-top: 16px;
}
.form-msg.success { background: #e6f7f1; color: var(--success); border: 1px solid #b3e6d4; }
.form-msg.error-msg { background: #fce8ec; color: var(--error); border: 1px solid #f5b8c4; }

.divider { border: none; border-top: 1px solid var(--hairline); margin: 48px 0; }

.site-footer {
    background: var(--canvas);
    border-top: 1px solid var(--hairline);
    padding: 64px 0 48px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 48px;
}

.footer-brand p { font-size: 14px; color: var(--body); margin-top: 12px; max-width: 260px; line-height: 1.5; }

.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; padding: 0; }
.footer-col ul li { margin-bottom: 8px; font-size: 14px; color: var(--body); }
.footer-col ul li a { color: var(--body); }
.footer-col ul li a:hover { color: var(--ink); }

.footer-bottom {
    border-top: 1px solid var(--hairline);
    padding-top: 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
}
.footer-bottom p { font-size: 13px; color: var(--muted); }
.footer-bottom a { color: var(--muted); text-decoration: underline; text-underline-offset: 2px; }
.footer-bottom a:hover { color: var(--ink); }

.cookie-banner {
    position: fixed;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%);
    width: calc(100% - 48px);
    max-width: 760px;
    background: var(--ink);
    color: var(--canvas);
    border-radius: 12px;
    padding: 20px 24px;
    display: none;
    z-index: 9999;
    box-shadow: 0 4px 24px rgba(0,0,0,0.12);
}
.cookie-banner.visible { display: block; }
.cookie-inner { display: flex; align-items: center; gap: 24px; flex-wrap: wrap; }
.cookie-inner p { font-size: 14px; color: var(--canvas); flex: 1; line-height: 1.5; }
.cookie-inner p a { color: var(--canvas); text-decoration: underline; }
.cookie-btns { display: flex; gap: 10px; flex-shrink: 0; }
.btn-accept {
    background: var(--primary);
    color: var(--on-primary);
    border: none;
    border-radius: 8px;
    padding: 8px 18px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
}
.btn-accept:hover { background: var(--primary-active); }
.btn-reject {
    background: transparent;
    color: var(--canvas);
    border: 1px solid rgba(247,247,244,0.3);
    border-radius: 8px;
    padding: 8px 18px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
}
.btn-reject:hover { border-color: rgba(247,247,244,0.6); }

.breadcrumb { font-size: 13px; color: var(--muted); margin-bottom: 24px; }
.breadcrumb a { color: var(--muted); text-decoration: underline; text-underline-offset: 2px; }
.breadcrumb a:hover { color: var(--ink); }
.breadcrumb span { margin: 0 6px; }

.materials-table { width: 100%; border-collapse: collapse; margin: 20px 0; }
.materials-table th, .materials-table td {
    padding: 12px 16px;
    text-align: left;
    border-bottom: 1px solid var(--hairline);
    font-size: 14px;
}
.materials-table th { font-weight: 600; color: var(--ink); background: var(--canvas-soft); }
.materials-table td { color: var(--body); }

@media (max-width: 1024px) {
    .hero-band h1 { font-size: 56px; letter-spacing: -1.5px; }
    .articles-grid { grid-template-columns: repeat(2, 1fr); }
    .features-grid { grid-template-columns: repeat(2, 1fr); }
    .article-layout { grid-template-columns: 1fr; }
    .sidebar { position: static; }
    .footer-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    .nav-toggle { display: flex; }
    .site-nav {
        display: none;
        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;
    }
    .site-nav.open { display: flex; }
    .hero-band { padding: 48px 0 40px; }
    .hero-band h1 { font-size: 32px; letter-spacing: -1px; }
    .articles-grid { grid-template-columns: 1fr; }
    .features-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; gap: 32px; }
    .footer-bottom { flex-direction: column; align-items: flex-start; }
    .article-main h1 { font-size: 28px; }
    .contact-form-wrap { padding: 24px; }
}

@media (max-width: 480px) {
    .cookie-banner { bottom: 0; left: 0; transform: none; width: 100%; border-radius: 12px 12px 0 0; }
    .section { padding: 48px 0; }
}