@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;
    --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;
}

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

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

a { color: inherit; text-decoration: none; }
a:hover { color: var(--ink); }
img { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; }

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

/* TOP NAV */
.site-nav {
    background: var(--canvas);
    border-bottom: 1px solid var(--hairline);
    height: 64px;
    position: sticky;
    top: 0;
    z-index: 100;
}
.site-nav .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}
.nav-logo {
    font-size: 18px;
    font-weight: 600;
    color: var(--ink);
    letter-spacing: -0.01em;
}
.nav-logo span { color: var(--primary); }
.nav-links {
    display: flex;
    gap: 32px;
    align-items: center;
}
.nav-links a {
    font-size: 14px;
    font-weight: 500;
    color: var(--body);
    transition: color 0.15s;
}
.nav-links a:hover, .nav-links a.active { color: var(--ink); }
.nav-hamburger {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    flex-direction: column;
    gap: 5px;
}
.nav-hamburger span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--ink);
    border-radius: 2px;
}
.nav-mobile {
    display: none;
    background: var(--canvas);
    border-bottom: 1px solid var(--hairline);
    padding: 16px 24px;
}
.nav-mobile a {
    display: block;
    padding: 10px 0;
    font-size: 14px;
    font-weight: 500;
    color: var(--body);
    border-bottom: 1px solid var(--hairline-soft);
}
.nav-mobile a:last-child { border-bottom: none; }
.nav-mobile.open { display: block; }

/* HERO */
.hero {
    padding: 80px 0;
    border-bottom: 1px solid var(--hairline);
}
.hero-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
}
.hero-content {}
.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);
    padding: 4px 10px;
    border-radius: 9999px;
    margin-bottom: 24px;
}
.hero h1 {
    font-size: 52px;
    font-weight: 400;
    line-height: 1.1;
    letter-spacing: -1.2px;
    color: var(--ink);
    margin-bottom: 20px;
}
.hero-lead {
    font-size: 18px;
    line-height: 1.6;
    color: var(--body);
    margin-bottom: 32px;
    max-width: 480px;
}
.hero-image {
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid var(--hairline);
}
.hero-image img {
    width: 100%;
    height: 380px;
    object-fit: cover;
}

/* SECTIONS */
.section { padding: 80px 0; }
.section-alt { background: var(--canvas-soft); }
.section-border { border-top: 1px solid var(--hairline); }

.section-label {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.88px;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 12px;
}
.section-title {
    font-size: 36px;
    font-weight: 400;
    letter-spacing: -0.72px;
    color: var(--ink);
    line-height: 1.2;
    margin-bottom: 16px;
}
.section-sub {
    font-size: 16px;
    color: var(--body);
    max-width: 560px;
    line-height: 1.6;
    margin-bottom: 48px;
}

/* CARDS */
.card-grid { display: grid; gap: 24px; }
.card-grid-3 { grid-template-columns: repeat(3, 1fr); }
.card-grid-2 { grid-template-columns: repeat(2, 1fr); }

.card {
    background: var(--surface-card);
    border: 1px solid var(--hairline);
    border-radius: 12px;
    padding: 24px;
    transition: border-color 0.15s;
}
.card:hover { border-color: var(--hairline-strong); }

.card-img {
    border-radius: 8px;
    overflow: hidden;
    margin-bottom: 16px;
    border: 1px solid var(--hairline-soft);
}
.card-img img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}
.card-meta {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.88px;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 8px;
}
.card-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--ink);
    line-height: 1.3;
    margin-bottom: 10px;
}
.card-title a:hover { color: var(--primary); }
.card-excerpt {
    font-size: 14px;
    color: var(--body);
    line-height: 1.6;
    margin-bottom: 16px;
}
.card-link {
    font-size: 14px;
    font-weight: 500;
    color: var(--ink);
    border-bottom: 1px solid var(--hairline-strong);
    padding-bottom: 2px;
    transition: color 0.15s, border-color 0.15s;
}
.card-link:hover { color: var(--primary); border-color: var(--primary); }

/* ARTICLE PAGE */
.article-header {
    padding: 64px 0 48px;
    border-bottom: 1px solid var(--hairline);
}
.article-header .container { max-width: 800px; }
.breadcrumb {
    font-size: 13px;
    color: var(--muted);
    margin-bottom: 20px;
}
.breadcrumb a { color: var(--muted); }
.breadcrumb a:hover { color: var(--ink); }
.breadcrumb span { margin: 0 6px; }
.article-header h1 {
    font-size: 42px;
    font-weight: 400;
    letter-spacing: -0.8px;
    color: var(--ink);
    line-height: 1.15;
    margin-bottom: 16px;
}
.article-header .lead {
    font-size: 18px;
    color: var(--body);
    line-height: 1.65;
    margin-bottom: 24px;
}
.article-meta {
    display: flex;
    gap: 24px;
    align-items: center;
    flex-wrap: wrap;
}
.article-meta-item {
    font-size: 13px;
    color: var(--muted);
}
.article-meta-item strong { color: var(--body); }

.article-body {
    padding: 48px 0 80px;
}
.article-body .container {
    max-width: 800px;
    display: grid;
    grid-template-columns: 1fr 280px;
    gap: 64px;
    align-items: start;
}
.article-content h2 {
    font-size: 26px;
    font-weight: 400;
    letter-spacing: -0.325px;
    color: var(--ink);
    line-height: 1.25;
    margin-top: 48px;
    margin-bottom: 16px;
}
.article-content h2:first-child { margin-top: 0; }
.article-content h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--ink);
    margin-top: 32px;
    margin-bottom: 12px;
}
.article-content p {
    font-size: 16px;
    line-height: 1.7;
    color: var(--body);
    margin-bottom: 18px;
}
.article-content ul, .article-content ol {
    list-style: disc;
    margin-left: 20px;
    margin-bottom: 18px;
}
.article-content ol { list-style: decimal; }
.article-content li {
    font-size: 16px;
    line-height: 1.7;
    color: var(--body);
    margin-bottom: 6px;
}
.article-content a { color: var(--ink); border-bottom: 1px solid var(--hairline-strong); }
.article-content a:hover { color: var(--primary); border-color: var(--primary); }

.article-figure {
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid var(--hairline);
    margin: 32px 0;
}
.article-figure img {
    width: 100%;
    height: 320px;
    object-fit: cover;
}
.article-figure figcaption {
    font-size: 13px;
    color: var(--muted);
    padding: 10px 16px;
    background: var(--surface-card);
    border-top: 1px solid var(--hairline-soft);
}

.info-box {
    background: var(--surface-card);
    border: 1px solid var(--hairline);
    border-left: 3px solid var(--primary);
    border-radius: 8px;
    padding: 20px;
    margin: 28px 0;
}
.info-box p {
    font-size: 15px;
    color: var(--body);
    margin: 0;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    margin: 28px 0;
    font-family: 'JetBrains Mono', monospace;
    font-size: 13px;
}
.data-table th {
    background: var(--surface-strong);
    color: var(--ink);
    font-weight: 600;
    text-align: left;
    padding: 10px 14px;
    border: 1px solid var(--hairline);
}
.data-table td {
    color: var(--body);
    padding: 9px 14px;
    border: 1px solid var(--hairline-soft);
}
.data-table tr:nth-child(even) td { background: var(--canvas-soft); }

.article-sidebar {}
.sidebar-card {
    background: var(--surface-card);
    border: 1px solid var(--hairline);
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 20px;
    position: sticky;
    top: 84px;
}
.sidebar-title {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.88px;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 14px;
}
.sidebar-links { display: flex; flex-direction: column; gap: 10px; }
.sidebar-links a {
    font-size: 14px;
    color: var(--body);
    padding: 8px 0;
    border-bottom: 1px solid var(--hairline-soft);
    transition: color 0.15s;
}
.sidebar-links a:last-child { border-bottom: none; }
.sidebar-links a:hover { color: var(--ink); }
.sidebar-links a span {
    font-size: 11px;
    color: var(--muted);
    display: block;
    margin-top: 2px;
}

/* RELATED ARTICLES */
.related-section {
    padding: 64px 0;
    border-top: 1px solid var(--hairline);
}

/* CONTACT FORM */
.form-section { padding: 80px 0; border-top: 1px solid var(--hairline); }
.form-wrap { max-width: 560px; margin: 0 auto; }
.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);
    border: 1px solid var(--hairline-strong);
    border-radius: 8px;
    padding: 12px 16px;
    font-size: 16px;
    color: var(--ink);
    font-family: inherit;
    height: 44px;
    transition: border-color 0.15s;
    outline: none;
}
.form-group textarea { height: auto; min-height: 110px; 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-error-msg {
    font-size: 13px;
    color: var(--semantic-error);
    margin-top: 4px;
    display: none;
}
.form-error-msg.visible { display: block; }

.btn-primary {
    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;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: background 0.15s;
}
.btn-primary:hover { background: var(--primary-active); }
.btn-primary:disabled { opacity: 0.6; cursor: not-allowed; }

.form-status {
    display: none;
    padding: 14px 18px;
    border-radius: 8px;
    font-size: 15px;
    margin-top: 16px;
}
.form-status.success {
    display: block;
    background: #e8f5f0;
    color: var(--semantic-success);
    border: 1px solid #b4ddd0;
}

/* STATS ROW */
.stats-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1px;
    background: var(--hairline);
    border: 1px solid var(--hairline);
    border-radius: 12px;
    overflow: hidden;
    margin-bottom: 48px;
}
.stat-item {
    background: var(--surface-card);
    padding: 28px 24px;
}
.stat-num {
    font-size: 32px;
    font-weight: 400;
    letter-spacing: -0.5px;
    color: var(--ink);
    margin-bottom: 4px;
}
.stat-label { font-size: 13px; color: var(--muted); }

/* PAGE HEADER */
.page-header {
    padding: 64px 0 48px;
    border-bottom: 1px solid var(--hairline);
}
.page-header h1 {
    font-size: 42px;
    font-weight: 400;
    letter-spacing: -0.8px;
    color: var(--ink);
    margin-bottom: 12px;
}
.page-header .lead {
    font-size: 17px;
    color: var(--body);
    max-width: 560px;
    line-height: 1.6;
}

/* PROSE */
.prose { max-width: 720px; }
.prose h2 {
    font-size: 26px;
    font-weight: 400;
    letter-spacing: -0.325px;
    color: var(--ink);
    margin-top: 48px;
    margin-bottom: 14px;
}
.prose h2:first-child { margin-top: 0; }
.prose h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--ink);
    margin-top: 28px;
    margin-bottom: 10px;
}
.prose p {
    font-size: 16px;
    line-height: 1.7;
    color: var(--body);
    margin-bottom: 16px;
}
.prose ul { list-style: disc; margin-left: 20px; margin-bottom: 16px; }
.prose li { font-size: 16px; line-height: 1.7; color: var(--body); margin-bottom: 4px; }
.prose a { color: var(--ink); border-bottom: 1px solid var(--hairline-strong); }
.prose a:hover { color: var(--primary); border-color: var(--primary); }

/* FOOTER */
.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 .nav-logo { font-size: 16px; margin-bottom: 12px; display: block; }
.footer-brand p { font-size: 14px; color: var(--body); line-height: 1.6; max-width: 260px; }
.footer-col-title {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.88px;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 14px;
}
.footer-links { display: flex; flex-direction: column; gap: 8px; }
.footer-links a { font-size: 14px; color: var(--body); transition: color 0.15s; }
.footer-links a:hover { color: var(--ink); }
.footer-bottom {
    padding-top: 24px;
    border-top: 1px solid var(--hairline-soft);
    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-links { display: flex; gap: 20px; }
.footer-bottom-links a { font-size: 13px; color: var(--muted); transition: color 0.15s; }
.footer-bottom-links a:hover { color: var(--ink); }

/* COOKIE BANNER */
#cookie-banner {
    position: fixed;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--ink);
    color: var(--canvas);
    border-radius: 12px;
    padding: 20px 24px;
    max-width: 560px;
    width: calc(100% - 48px);
    display: flex;
    gap: 20px;
    align-items: center;
    box-shadow: 0 4px 24px rgba(38,37,30,0.18);
    z-index: 999;
}
#cookie-banner.hidden { display: none; }
#cookie-banner p { font-size: 14px; line-height: 1.5; color: var(--canvas-soft); flex: 1; }
#cookie-banner p a { color: var(--canvas); border-bottom: 1px solid rgba(247,247,244,0.35); }
.cookie-actions { display: flex; gap: 10px; flex-shrink: 0; }
.cookie-btn {
    font-size: 13px;
    font-weight: 500;
    padding: 8px 16px;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    height: 36px;
    white-space: nowrap;
}
.cookie-accept { background: var(--primary); color: var(--on-primary); }
.cookie-accept:hover { background: var(--primary-active); }
.cookie-reject { background: transparent; color: var(--canvas); border: 1px solid rgba(247,247,244,0.3); }
.cookie-reject:hover { border-color: rgba(247,247,244,0.6); }

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

/* RESPONSIVE */
@media (max-width: 1024px) {
    .hero h1 { font-size: 40px; }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
    .article-body .container { grid-template-columns: 1fr; gap: 40px; }
    .article-sidebar { display: none; }
    .card-grid-3 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
    .nav-links { display: none; }
    .nav-hamburger { display: flex; }
    .hero-inner { grid-template-columns: 1fr; }
    .hero h1 { font-size: 32px; letter-spacing: -0.6px; }
    .hero-image { margin-top: 0; }
    .hero-image img { height: 260px; }
    .section-title { font-size: 28px; }
    .card-grid-3, .card-grid-2 { grid-template-columns: 1fr; }
    .stats-row { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; gap: 24px; }
    .footer-bottom { flex-direction: column; align-items: flex-start; }
    .article-header h1 { font-size: 30px; }
    #cookie-banner { flex-direction: column; bottom: 16px; }
    .cookie-actions { width: 100%; }
    .cookie-btn { flex: 1; text-align: center; }
    .page-header h1 { font-size: 30px; }
}
@media (max-width: 480px) {
    .container { padding: 0 16px; }
    .section { padding: 56px 0; }
    .hero { padding: 48px 0; }
}