@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;
    --hairline: #e6e5e0;
    --hairline-soft: #efeee8;
    --hairline-strong: #cfcdc4;
    --ink: #26251e;
    --body: #5a5852;
    --body-strong: #26251e;
    --muted: #807d72;
    --muted-soft: #a09c92;
    --primary: #f54e00;
    --primary-active: #d04200;
    --on-primary: #ffffff;
    --success: #1f8a65;
    --error: #cf2d56;
}

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;
}

a { color: var(--ink); text-decoration: underline; text-underline-offset: 3px; }
a:hover { color: var(--primary); }

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

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

.site-header .container {
    display: flex;
    align-items: center;
    height: 100%;
    gap: 40px;
}

.site-logo {
    font-size: 18px;
    font-weight: 600;
    color: var(--ink);
    text-decoration: none;
    letter-spacing: -0.02em;
    white-space: nowrap;
    flex-shrink: 0;
}

.site-nav {
    display: flex;
    gap: 32px;
    align-items: center;
    flex: 1;
}

.site-nav a {
    font-size: 14px;
    font-weight: 500;
    line-height: 1.4;
    color: var(--body);
    text-decoration: none;
    white-space: nowrap;
    transition: color 0.15s;
}

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

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    margin-left: auto;
}

.nav-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background-color: var(--ink);
    border-radius: 2px;
    transition: transform 0.2s, opacity 0.2s;
}

.hero-band {
    padding: 80px 0;
    background-color: var(--canvas);
    border-bottom: 1px solid var(--hairline-soft);
}

.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: 16px;
    font-weight: 400;
    line-height: 1.5;
    color: var(--body);
    max-width: 560px;
    margin-bottom: 32px;
}

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

.section {
    padding: 80px 0;
}

.section-label {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.88px;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 20px;
}

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

.section-subtitle {
    font-size: 16px;
    font-weight: 400;
    line-height: 1.5;
    color: var(--body);
    max-width: 600px;
    margin-bottom: 48px;
}

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

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

.card {
    background-color: var(--surface-card);
    border: 1px solid var(--hairline);
    border-radius: 12px;
    padding: 24px;
    text-decoration: none;
    color: inherit;
    display: block;
    transition: border-color 0.15s;
}

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

.card-img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: 8px;
    margin-bottom: 20px;
    background-color: var(--surface-strong);
}

.card-label {
    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;
    line-height: 1.4;
    color: var(--ink);
    margin-bottom: 12px;
}

.card-excerpt {
    font-size: 14px;
    font-weight: 400;
    line-height: 1.5;
    color: var(--body);
}

.card-date {
    font-size: 13px;
    color: var(--muted);
    margin-top: 16px;
}

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

.article-header {
    padding: 64px 0 48px;
    border-bottom: 1px solid var(--hairline-soft);
}

.article-header h1 {
    font-size: 48px;
    font-weight: 400;
    line-height: 1.15;
    letter-spacing: -1.2px;
    color: var(--ink);
    max-width: 760px;
    margin-bottom: 20px;
}

.article-header .article-desc {
    font-size: 18px;
    font-weight: 400;
    line-height: 1.5;
    color: var(--body);
    max-width: 640px;
    margin-bottom: 24px;
}

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

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

.article-body {
    padding: 64px 0 80px;
}

.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: 48px 0 16px;
}

.article-content h3 {
    font-size: 18px;
    font-weight: 600;
    line-height: 1.4;
    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 figure {
    margin: 40px 0;
}

.article-content figure img {
    width: 100%;
    height: auto;
    border-radius: 8px;
    display: block;
    border: 1px solid var(--hairline);
}

.article-content figcaption {
    font-size: 13px;
    color: var(--muted);
    margin-top: 10px;
    line-height: 1.4;
}

.info-box {
    background-color: var(--surface-card);
    border: 1px solid var(--hairline);
    border-radius: 12px;
    padding: 24px;
    margin: 32px 0;
}

.info-box p {
    margin-bottom: 0;
}

.info-box .info-title {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.88px;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 12px;
}

.source-list {
    background-color: var(--canvas-soft);
    border: 1px solid var(--hairline-soft);
    border-radius: 8px;
    padding: 20px 24px;
    margin-top: 48px;
}

.source-list p.source-heading {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.88px;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 12px;
}

.source-list ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.source-list li {
    font-size: 13px;
    color: var(--muted);
    line-height: 1.6;
    margin-bottom: 4px;
}

.source-list a {
    color: var(--muted);
    font-size: 13px;
}

.badge {
    display: inline-block;
    background-color: 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;
}

.page-header {
    padding: 64px 0 48px;
    border-bottom: 1px solid var(--hairline-soft);
}

.page-header h1 {
    font-size: 48px;
    font-weight: 400;
    line-height: 1.15;
    letter-spacing: -1.2px;
    color: var(--ink);
    max-width: 700px;
    margin-bottom: 16px;
}

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

.page-body {
    padding: 64px 0 80px;
}

.page-body h2 {
    font-size: 26px;
    font-weight: 400;
    line-height: 1.25;
    letter-spacing: -0.325px;
    color: var(--ink);
    margin: 40px 0 14px;
}

.page-body p {
    font-size: 16px;
    line-height: 1.6;
    color: var(--body);
    margin-bottom: 18px;
    max-width: 720px;
}

.page-body ul {
    padding-left: 24px;
    margin-bottom: 18px;
    max-width: 720px;
}

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

.contact-form-wrap {
    background-color: var(--surface-card);
    border: 1px solid var(--hairline);
    border-radius: 12px;
    padding: 40px;
    max-width: 600px;
    margin-top: 48px;
}

.contact-form-wrap h2 {
    font-size: 22px;
    font-weight: 400;
    letter-spacing: -0.11px;
    color: var(--ink);
    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-color: var(--surface-card);
    color: var(--ink);
    border: 1px solid var(--hairline-strong);
    border-radius: 8px;
    padding: 12px 16px;
    height: 44px;
    font-family: inherit;
    font-size: 16px;
    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;
}

.btn-primary {
    display: inline-block;
    background-color: var(--primary);
    color: var(--on-primary);
    font-size: 14px;
    font-weight: 500;
    line-height: 1.0;
    padding: 10px 18px;
    height: 40px;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    text-decoration: none;
    transition: background-color 0.15s;
}

.btn-primary:hover { background-color: var(--primary-active); color: var(--on-primary); }
.btn-primary:disabled { opacity: 0.6; cursor: not-allowed; }

.form-message {
    font-size: 14px;
    margin-top: 16px;
    padding: 12px 16px;
    border-radius: 8px;
    display: none;
}

.form-message.success {
    background-color: #e8f5f0;
    color: var(--success);
    border: 1px solid #b5dece;
    display: block;
}

.form-message.error {
    background-color: #fceef1;
    color: var(--error);
    border: 1px solid #f0b9c4;
    display: block;
}

.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background-color: var(--surface-card);
    border-top: 1px solid var(--hairline);
    padding: 20px 24px;
    z-index: 200;
    display: flex;
    align-items: center;
    gap: 24px;
    flex-wrap: wrap;
}

.cookie-banner p {
    flex: 1;
    font-size: 14px;
    color: var(--body);
    min-width: 240px;
}

.cookie-banner p a {
    color: var(--body);
}

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

.btn-secondary {
    display: inline-block;
    background-color: 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;
    transition: border-color 0.15s;
}

.btn-secondary:hover { border-color: var(--ink); color: var(--ink); text-decoration: none; }

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

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 48px;
}

.footer-brand {
    font-size: 18px;
    font-weight: 600;
    color: var(--ink);
    margin-bottom: 12px;
    letter-spacing: -0.02em;
}

.footer-tagline {
    font-size: 14px;
    color: var(--body);
    line-height: 1.5;
}

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

.site-footer ul {
    list-style: none;
    padding: 0;
}

.site-footer li {
    margin-bottom: 10px;
}

.site-footer a {
    font-size: 14px;
    color: var(--body);
    text-decoration: none;
}

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

.footer-bottom {
    border-top: 1px solid var(--hairline-soft);
    padding-top: 24px;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 8px;
}

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

.footer-bottom a {
    font-size: 14px;
    color: var(--muted);
    text-decoration: none;
}

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

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

.related-section .section-title {
    font-size: 26px;
    margin-bottom: 32px;
}

@media (max-width: 1023px) {
    .hero-band h1 { font-size: 56px; letter-spacing: -1.4px; }
    .card-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 767px) {
    .hero-band { padding: 48px 0; }
    .hero-band h1 { font-size: 32px; letter-spacing: -0.5px; }
    .section { padding: 48px 0; }
    .section-title { font-size: 26px; }
    .card-grid { grid-template-columns: 1fr; }
    .card-grid-2 { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; gap: 32px; }
    .footer-bottom { flex-direction: column; }
    .article-header h1 { font-size: 32px; letter-spacing: -0.5px; }
    .page-header h1 { font-size: 32px; letter-spacing: -0.5px; }
    .contact-form-wrap { padding: 24px; }
    .site-nav {
        display: none;
        position: absolute;
        top: 64px;
        left: 0;
        right: 0;
        background-color: var(--canvas);
        border-bottom: 1px solid var(--hairline);
        flex-direction: column;
        gap: 0;
        padding: 8px 0;
    }
    .site-nav.open { display: flex; }
    .site-nav a {
        padding: 12px 24px;
        width: 100%;
    }
    .nav-toggle { display: flex; }
    .site-header { position: relative; }
    .cookie-banner { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 639px) {
    .hero-band h1 { font-size: 28px; }
}