: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;
    --semantic-success: #1f8a65;
    --semantic-error: #cf2d56;
    --radius-xs: 4px;
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-pill: 9999px;
}

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

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

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

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;
}

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

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

.site-logo {
    font-size: 18px;
    font-weight: 600;
    color: var(--ink);
    letter-spacing: -0.5px;
    line-height: 1;
}
.site-logo span { color: var(--primary); }

.site-nav ul {
    display: flex;
    list-style: none;
    gap: 32px;
}

.site-nav a {
    font-size: 14px;
    font-weight: 500;
    color: var(--body);
    transition: color 0.15s;
}
.site-nav a:hover,
.site-nav a.active { 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;
    transition: all 0.2s;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: 500;
    line-height: 1;
    border-radius: var(--radius-md);
    border: none;
    cursor: pointer;
    transition: background 0.15s, color 0.15s;
    text-decoration: none;
}
.btn-primary {
    background: var(--primary);
    color: var(--on-primary);
    padding: 10px 18px;
    height: 40px;
}
.btn-primary:hover { background: var(--primary-active); color: var(--on-primary); }
.btn-secondary {
    background: var(--surface-card);
    color: var(--ink);
    border: 1px solid var(--hairline-strong);
    padding: 10px 18px;
    height: 40px;
}
.btn-secondary:hover { background: var(--surface-strong); color: var(--ink); }
.btn-ink {
    background: var(--ink);
    color: var(--canvas);
    padding: 12px 20px;
    height: 44px;
}
.btn-ink:hover { background: #3a3830; color: var(--canvas); }

.hero-band {
    padding: 80px 0;
    background: var(--canvas);
}
.hero-band .hero-label {
    display: inline-block;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.88px;
    text-transform: uppercase;
    color: var(--muted);
    background: var(--surface-strong);
    border-radius: var(--radius-pill);
    padding: 4px 10px;
    margin-bottom: 24px;
}
.hero-band h1 {
    font-size: 72px;
    font-weight: 400;
    letter-spacing: -2.16px;
    line-height: 1.1;
    color: var(--ink);
    max-width: 780px;
    margin-bottom: 24px;
}
.hero-band .hero-sub {
    font-size: 16px;
    color: var(--body);
    max-width: 540px;
    margin-bottom: 40px;
    line-height: 1.6;
}
.hero-actions { display: flex; gap: 16px; align-items: center; flex-wrap: wrap; }

.hero-image-wrap {
    margin-top: 64px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--hairline);
    overflow: hidden;
    background: var(--surface-card);
}
.hero-image-wrap img {
    width: 100%;
    height: 480px;
    object-fit: cover;
}

section.content-band { padding: 80px 0; }
section.content-band + section.content-band { border-top: 1px solid var(--hairline-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;
    line-height: 1.2;
    color: var(--ink);
    margin-bottom: 16px;
}
.section-sub {
    font-size: 16px;
    color: var(--body);
    max-width: 600px;
    line-height: 1.6;
}

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

.article-card {
    background: var(--surface-card);
    border: 1px solid var(--hairline);
    border-radius: var(--radius-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;
    display: block;
}
.article-card-body { padding: 24px; }
.article-card-tag {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.88px;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 12px;
}
.article-card-title {
    font-size: 22px;
    font-weight: 400;
    letter-spacing: -0.11px;
    line-height: 1.3;
    color: var(--ink);
    margin-bottom: 12px;
}
.article-card-excerpt {
    font-size: 14px;
    color: var(--body);
    line-height: 1.5;
    margin-bottom: 20px;
}
.article-card-link {
    font-size: 14px;
    font-weight: 500;
    color: var(--primary);
}

.feature-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: var(--radius-lg);
    padding: 24px;
}
.feature-card-icon {
    font-size: 24px;
    margin-bottom: 16px;
}
.feature-card-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--ink);
    margin-bottom: 8px;
    line-height: 1.4;
}
.feature-card-text {
    font-size: 14px;
    color: var(--body);
    line-height: 1.5;
}

.split-band {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
}
.split-band.reverse { direction: rtl; }
.split-band.reverse > * { direction: ltr; }

.split-img {
    border-radius: var(--radius-lg);
    border: 1px solid var(--hairline);
    overflow: hidden;
}
.split-img img {
    width: 100%;
    height: 360px;
    object-fit: cover;
    display: block;
}

.split-content h2 {
    font-size: 36px;
    font-weight: 400;
    letter-spacing: -0.72px;
    line-height: 1.2;
    color: var(--ink);
    margin-bottom: 20px;
}
.split-content p {
    font-size: 16px;
    color: var(--body);
    line-height: 1.6;
    margin-bottom: 16px;
}
.split-content ul {
    padding-left: 20px;
    margin-bottom: 16px;
}
.split-content ul li {
    font-size: 16px;
    color: var(--body);
    line-height: 1.6;
    margin-bottom: 8px;
}

article.article-page { padding: 80px 0; }
.article-header { margin-bottom: 48px; max-width: 800px; }
.article-header .article-tag {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.88px;
    text-transform: uppercase;
    color: var(--muted);
    background: var(--surface-strong);
    border-radius: var(--radius-pill);
    padding: 4px 10px;
    display: inline-block;
    margin-bottom: 20px;
}
.article-header h1 {
    font-size: 52px;
    font-weight: 400;
    letter-spacing: -1.5px;
    line-height: 1.1;
    color: var(--ink);
    margin-bottom: 20px;
}
.article-header .article-meta {
    font-size: 13px;
    color: var(--muted);
}
.article-hero-img {
    width: 100%;
    max-height: 480px;
    object-fit: cover;
    border-radius: var(--radius-lg);
    border: 1px solid var(--hairline);
    margin-bottom: 48px;
}
.article-body { max-width: 720px; }
.article-body h2 {
    font-size: 26px;
    font-weight: 400;
    letter-spacing: -0.325px;
    line-height: 1.25;
    color: var(--ink);
    margin: 48px 0 16px;
}
.article-body h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--ink);
    margin: 32px 0 12px;
    line-height: 1.3;
}
.article-body p {
    font-size: 16px;
    color: var(--body);
    line-height: 1.7;
    margin-bottom: 20px;
}
.article-body ul, .article-body ol {
    padding-left: 24px;
    margin-bottom: 20px;
}
.article-body li {
    font-size: 16px;
    color: var(--body);
    line-height: 1.7;
    margin-bottom: 8px;
}
.article-body .note-block {
    background: var(--surface-card);
    border: 1px solid var(--hairline);
    border-left: 3px solid var(--primary);
    border-radius: var(--radius-md);
    padding: 16px 20px;
    margin: 24px 0;
    font-size: 14px;
    color: var(--body);
    line-height: 1.6;
}
.article-body .data-table {
    width: 100%;
    border-collapse: collapse;
    margin: 24px 0;
    font-size: 14px;
}
.article-body .data-table th {
    background: var(--surface-strong);
    color: var(--ink);
    font-weight: 600;
    padding: 10px 16px;
    text-align: left;
    border-bottom: 1px solid var(--hairline-strong);
}
.article-body .data-table td {
    padding: 10px 16px;
    border-bottom: 1px solid var(--hairline-soft);
    color: var(--body);
}
.article-body .data-table tr:last-child td { border-bottom: none; }
.article-body .data-table-wrap {
    background: var(--surface-card);
    border: 1px solid var(--hairline);
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin: 24px 0;
}

.article-refs {
    margin-top: 48px;
    padding-top: 32px;
    border-top: 1px solid var(--hairline);
}
.article-refs h3 {
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.88px;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 16px;
}
.article-refs ul { list-style: none; padding: 0; }
.article-refs li { margin-bottom: 8px; font-size: 14px; }
.article-refs a { color: var(--primary); }

.contact-form-wrap {
    background: var(--surface-card);
    border: 1px solid var(--hairline);
    border-radius: var(--radius-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);
    border: 1px solid var(--hairline-strong);
    border-radius: var(--radius-md);
    padding: 12px 16px;
    font-size: 16px;
    font-family: inherit;
    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: 120px; resize: vertical; }
.form-message {
    display: none;
    padding: 12px 16px;
    border-radius: var(--radius-md);
    font-size: 14px;
    margin-top: 16px;
}
.form-message.success {
    background: #e8f5f0;
    color: var(--semantic-success);
    border: 1px solid #b8ddd0;
}

.page-hero {
    padding: 64px 0 48px;
    border-bottom: 1px solid var(--hairline-soft);
    margin-bottom: 64px;
}
.page-hero h1 {
    font-size: 52px;
    font-weight: 400;
    letter-spacing: -1.5px;
    line-height: 1.1;
    color: var(--ink);
    margin-bottom: 16px;
    max-width: 700px;
}
.page-hero p {
    font-size: 16px;
    color: var(--body);
    max-width: 560px;
    line-height: 1.6;
}

.prose h2 {
    font-size: 26px;
    font-weight: 400;
    letter-spacing: -0.325px;
    color: var(--ink);
    margin: 40px 0 16px;
    line-height: 1.25;
}
.prose h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--ink);
    margin: 28px 0 12px;
}
.prose p {
    font-size: 16px;
    color: var(--body);
    line-height: 1.7;
    margin-bottom: 20px;
    max-width: 720px;
}
.prose ul, .prose ol {
    padding-left: 24px;
    margin-bottom: 20px;
    max-width: 720px;
}
.prose li {
    font-size: 16px;
    color: var(--body);
    line-height: 1.7;
    margin-bottom: 8px;
}

.site-footer {
    background: var(--canvas);
    border-top: 1px solid var(--hairline);
    padding: 64px 0 0;
}
.footer-inner {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 48px;
    padding-bottom: 48px;
}
.footer-brand {
    font-size: 18px;
    font-weight: 600;
    color: var(--ink);
    letter-spacing: -0.5px;
    margin-bottom: 12px;
}
.footer-brand span { color: var(--primary); }
.footer-tagline {
    font-size: 14px;
    color: var(--body);
    line-height: 1.6;
}
.site-footer h4 {
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.88px;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 16px;
}
.site-footer ul { list-style: none; }
.site-footer ul li { margin-bottom: 10px; }
.site-footer ul a {
    font-size: 14px;
    color: var(--body);
    transition: color 0.15s;
}
.site-footer ul a:hover { color: var(--ink); }
.footer-bottom {
    border-top: 1px solid var(--hairline-soft);
    padding: 20px 0;
}
.footer-bottom .container {
    display: flex;
    justify-content: space-between;
    font-size: 13px;
    color: var(--muted);
    flex-wrap: wrap;
    gap: 8px;
}

.cookie-banner {
    display: none;
    position: fixed;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 999;
    width: calc(100% - 48px);
    max-width: 720px;
    background: var(--ink);
    color: var(--canvas);
    border-radius: var(--radius-lg);
    padding: 20px 24px;
}
.cookie-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    flex-wrap: wrap;
}
.cookie-banner p { font-size: 14px; line-height: 1.5; }
.cookie-banner a { color: var(--primary); }
.cookie-actions { display: flex; gap: 12px; flex-shrink: 0; }
.cookie-actions .btn-primary { background: var(--primary); }
.cookie-actions .btn-secondary {
    background: transparent;
    color: var(--canvas);
    border-color: rgba(255,255,255,0.3);
}
.cookie-actions .btn-secondary:hover { background: rgba(255,255,255,0.1); color: var(--canvas); }

.disclaimer-bar {
    background: var(--surface-strong);
    border-top: 1px solid var(--hairline);
    padding: 12px 0;
    font-size: 13px;
    color: var(--muted);
    text-align: center;
}

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

@media (max-width: 768px) {
    .site-nav { display: none; }
    .site-nav.open { display: block; position: absolute; top: 64px; left: 0; right: 0; background: var(--canvas); border-bottom: 1px solid var(--hairline); padding: 16px 24px; }
    .site-nav.open ul { flex-direction: column; gap: 0; }
    .site-nav.open ul li a { display: block; padding: 12px 0; border-bottom: 1px solid var(--hairline-soft); font-size: 16px; }
    .nav-toggle { display: flex; }
    .hero-band h1 { font-size: 36px; letter-spacing: -0.8px; }
    .hero-band { padding: 48px 0; }
    .hero-image-wrap img { height: 240px; }
    .split-band { grid-template-columns: 1fr; gap: 32px; }
    .split-band.reverse { direction: ltr; }
    .articles-grid { grid-template-columns: 1fr; }
    .feature-grid { grid-template-columns: 1fr; }
    .section-title { font-size: 28px; }
    .footer-inner { grid-template-columns: 1fr; gap: 32px; }
    .article-header h1 { font-size: 32px; letter-spacing: -0.5px; }
    .page-hero h1 { font-size: 36px; }
    content.content-band { padding: 48px 0; }
    section.content-band { padding: 48px 0; }
    .contact-form-wrap { padding: 24px; }
}

@media (max-width: 640px) {
    .hero-band h1 { font-size: 32px; }
}