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

:root {
    --color-canvas: #f7f7f4;
    --color-canvas-soft: #fafaf7;
    --color-surface-card: #ffffff;
    --color-surface-strong: #e6e5e0;
    --color-primary: #f54e00;
    --color-primary-active: #d04200;
    --color-ink: #26251e;
    --color-body: #5a5852;
    --color-body-strong: #26251e;
    --color-muted: #807d72;
    --color-muted-soft: #a09c92;
    --color-hairline: #e6e5e0;
    --color-hairline-soft: #efeee8;
    --color-hairline-strong: #cfcdc4;
    --color-on-primary: #ffffff;
    --color-success: #1f8a65;
    --color-error: #cf2d56;
    --font-sans: 'Inter', system-ui, 'Helvetica Neue', Helvetica, Arial, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
    --radius-xs: 4px;
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-pill: 9999px;
    --space-xxs: 4px;
    --space-xs: 8px;
    --space-sm: 12px;
    --space-base: 16px;
    --space-md: 20px;
    --space-lg: 24px;
    --space-xl: 32px;
    --space-xxl: 48px;
    --space-section: 80px;
}

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

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

body {
    font-family: var(--font-sans);
    font-size: 16px;
    font-weight: 400;
    line-height: 1.5;
    color: var(--color-body);
    background-color: var(--color-canvas);
    -webkit-font-smoothing: antialiased;
}

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

/* TYPOGRAPHY */
.display-mega {
    font-size: 72px;
    font-weight: 400;
    line-height: 1.1;
    letter-spacing: -2.16px;
    color: var(--color-ink);
}
.display-lg {
    font-size: 36px;
    font-weight: 400;
    line-height: 1.2;
    letter-spacing: -0.72px;
    color: var(--color-ink);
}
.display-md {
    font-size: 26px;
    font-weight: 400;
    line-height: 1.25;
    letter-spacing: -0.325px;
    color: var(--color-ink);
}
.display-sm {
    font-size: 22px;
    font-weight: 400;
    line-height: 1.3;
    letter-spacing: -0.11px;
    color: var(--color-ink);
}
.title-md {
    font-size: 18px;
    font-weight: 600;
    line-height: 1.4;
    color: var(--color-ink);
}
.title-sm {
    font-size: 16px;
    font-weight: 600;
    line-height: 1.4;
    color: var(--color-ink);
}
.body-md {
    font-size: 16px;
    font-weight: 400;
    line-height: 1.5;
    color: var(--color-body);
}
.body-sm {
    font-size: 14px;
    font-weight: 400;
    line-height: 1.5;
    color: var(--color-body);
}
.caption {
    font-size: 13px;
    font-weight: 400;
    line-height: 1.4;
    color: var(--color-muted);
}
.caption-upper {
    font-size: 11px;
    font-weight: 600;
    line-height: 1.4;
    letter-spacing: 0.88px;
    text-transform: uppercase;
    color: var(--color-muted);
}

/* NAVIGATION */
.site-nav {
    background: var(--color-canvas);
    border-bottom: 1px solid var(--color-hairline);
    height: 64px;
    position: sticky;
    top: 0;
    z-index: 100;
}
.nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}
.nav-logo {
    font-size: 18px;
    font-weight: 600;
    color: var(--color-ink);
    letter-spacing: -0.3px;
}
.nav-logo span { color: var(--color-primary); }
.nav-links {
    display: flex;
    gap: var(--space-xl);
    align-items: center;
}
.nav-links a {
    font-size: 14px;
    font-weight: 500;
    color: var(--color-body);
    transition: color 0.15s;
}
.nav-links a:hover { color: var(--color-ink); }
.nav-links a.active { color: var(--color-ink); }
.nav-hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: var(--space-xs);
    background: none;
    border: none;
}
.nav-hamburger span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--color-ink);
    border-radius: 2px;
    transition: all 0.2s;
}
.nav-mobile {
    display: none;
    flex-direction: column;
    background: var(--color-canvas);
    border-bottom: 1px solid var(--color-hairline);
    padding: var(--space-base) var(--space-lg);
    gap: var(--space-base);
}
.nav-mobile.open { display: flex; }
.nav-mobile a {
    font-size: 15px;
    font-weight: 500;
    color: var(--color-body);
    padding: var(--space-xs) 0;
    border-bottom: 1px solid var(--color-hairline-soft);
}
.nav-mobile a:last-child { border-bottom: none; }

/* HERO */
.hero-band {
    padding: var(--space-section) 0 calc(var(--space-section) * 0.75);
    border-bottom: 1px solid var(--color-hairline);
}
.hero-content {
    max-width: 760px;
}
.hero-band .badge-pill {
    margin-bottom: var(--space-lg);
}
.hero-band h1 {
    font-size: 56px;
    font-weight: 400;
    line-height: 1.1;
    letter-spacing: -1.5px;
    color: var(--color-ink);
    margin-bottom: var(--space-lg);
}
.hero-band .subhead {
    font-size: 18px;
    line-height: 1.55;
    color: var(--color-body);
    max-width: 560px;
    margin-bottom: var(--space-xxl);
}
.hero-meta {
    display: flex;
    gap: var(--space-xl);
    flex-wrap: wrap;
}
.hero-meta-item {
    display: flex;
    flex-direction: column;
    gap: var(--space-xxs);
}
.hero-meta-item .val {
    font-size: 28px;
    font-weight: 400;
    letter-spacing: -0.5px;
    color: var(--color-ink);
    line-height: 1;
}
.hero-meta-item .lbl {
    font-size: 13px;
    color: var(--color-muted);
}

/* BADGE PILL */
.badge-pill {
    display: inline-flex;
    align-items: center;
    background: var(--color-surface-strong);
    color: var(--color-ink);
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.88px;
    text-transform: uppercase;
    padding: 4px 10px;
    border-radius: var(--radius-pill);
}

/* SECTIONS */
.section {
    padding: var(--space-section) 0;
}
.section-header {
    margin-bottom: var(--space-xxl);
}
.section-label {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.88px;
    text-transform: uppercase;
    color: var(--color-muted);
    margin-bottom: var(--space-sm);
}
.section-title {
    font-size: 36px;
    font-weight: 400;
    line-height: 1.2;
    letter-spacing: -0.72px;
    color: var(--color-ink);
}
.section-desc {
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-body);
    max-width: 600px;
    margin-top: var(--space-base);
}
.section-divider {
    border: none;
    border-top: 1px solid var(--color-hairline);
    margin: 0;
}

/* CARDS */
.card {
    background: var(--color-surface-card);
    border: 1px solid var(--color-hairline);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
}
.card-img {
    width: 100%;
    height: 220px;
    object-fit: cover;
    border-radius: var(--radius-md);
    margin-bottom: var(--space-base);
}
.card-label {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.88px;
    text-transform: uppercase;
    color: var(--color-primary);
    margin-bottom: var(--space-xs);
}
.card-title {
    font-size: 18px;
    font-weight: 600;
    line-height: 1.35;
    color: var(--color-ink);
    margin-bottom: var(--space-sm);
}
.card-excerpt {
    font-size: 14px;
    line-height: 1.6;
    color: var(--color-body);
    margin-bottom: var(--space-base);
}
.card-link {
    font-size: 14px;
    font-weight: 500;
    color: var(--color-ink);
    border-bottom: 1px solid var(--color-hairline-strong);
    padding-bottom: 2px;
    transition: border-color 0.15s, color 0.15s;
}
.card-link:hover {
    color: var(--color-primary);
    border-color: var(--color-primary);
}

/* GRID */
.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
}
.grid-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-lg);
}

/* FEATURE CARD */
.feature-card {
    background: var(--color-surface-card);
    border: 1px solid var(--color-hairline);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
}
.feature-card-icon {
    width: 40px;
    height: 40px;
    background: var(--color-canvas);
    border: 1px solid var(--color-hairline);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-base);
    font-size: 20px;
}
.feature-card h3 {
    font-size: 17px;
    font-weight: 600;
    color: var(--color-ink);
    margin-bottom: var(--space-xs);
}
.feature-card p {
    font-size: 14px;
    line-height: 1.6;
    color: var(--color-body);
}

/* ARTICLE PAGE */
.article-layout {
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: var(--space-section);
    padding-top: var(--space-section);
    padding-bottom: var(--space-section);
}
.article-body h1 {
    font-size: 42px;
    font-weight: 400;
    line-height: 1.15;
    letter-spacing: -1px;
    color: var(--color-ink);
    margin-bottom: var(--space-lg);
}
.article-body h2 {
    font-size: 26px;
    font-weight: 400;
    line-height: 1.25;
    letter-spacing: -0.3px;
    color: var(--color-ink);
    margin-top: var(--space-section);
    margin-bottom: var(--space-base);
}
.article-body h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--color-ink);
    margin-top: var(--space-xxl);
    margin-bottom: var(--space-sm);
}
.article-body p {
    font-size: 16px;
    line-height: 1.7;
    color: var(--color-body);
    margin-bottom: var(--space-base);
}
.article-body ul {
    list-style: disc;
    padding-left: var(--space-lg);
    margin-bottom: var(--space-base);
}
.article-body ul li {
    font-size: 16px;
    line-height: 1.65;
    color: var(--color-body);
    margin-bottom: var(--space-xs);
}
.article-body a {
    color: var(--color-ink);
    border-bottom: 1px solid var(--color-hairline-strong);
}
.article-body a:hover { color: var(--color-primary); border-color: var(--color-primary); }
.article-meta {
    display: flex;
    align-items: center;
    gap: var(--space-base);
    flex-wrap: wrap;
    padding: var(--space-base) 0;
    border-top: 1px solid var(--color-hairline);
    border-bottom: 1px solid var(--color-hairline);
    margin-bottom: var(--space-xxl);
}
.article-meta span {
    font-size: 13px;
    color: var(--color-muted);
}
.article-meta .dot { color: var(--color-hairline-strong); }
.article-hero-img {
    width: 100%;
    height: 420px;
    object-fit: cover;
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-xxl);
    border: 1px solid var(--color-hairline);
}
.article-sidebar {
    position: sticky;
    top: 80px;
    align-self: start;
}
.sidebar-block {
    background: var(--color-surface-card);
    border: 1px solid var(--color-hairline);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    margin-bottom: var(--space-base);
}
.sidebar-block h4 {
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    color: var(--color-muted);
    margin-bottom: var(--space-base);
}
.sidebar-toc {
    list-style: none;
    padding: 0;
}
.sidebar-toc li a {
    font-size: 14px;
    color: var(--color-body);
    line-height: 1.5;
    display: block;
    padding: 5px 0;
    border-bottom: 1px solid var(--color-hairline-soft);
    transition: color 0.15s;
}
.sidebar-toc li:last-child a { border-bottom: none; }
.sidebar-toc li a:hover { color: var(--color-ink); }
.sidebar-related li a {
    font-size: 14px;
    font-weight: 500;
    color: var(--color-ink);
    display: block;
    padding: 6px 0;
    border-bottom: 1px solid var(--color-hairline-soft);
    transition: color 0.15s;
}
.sidebar-related li:last-child a { border-bottom: none; }
.sidebar-related li a:hover { color: var(--color-primary); }

.info-box {
    background: var(--color-canvas-soft);
    border: 1px solid var(--color-hairline);
    border-left: 3px solid var(--color-primary);
    border-radius: var(--radius-md);
    padding: var(--space-base) var(--space-lg);
    margin: var(--space-xxl) 0;
}
.info-box p { margin-bottom: 0; font-size: 15px; }

.data-table {
    width: 100%;
    border-collapse: collapse;
    margin: var(--space-xxl) 0;
    font-size: 14px;
}
.data-table th {
    background: var(--color-canvas);
    border: 1px solid var(--color-hairline);
    padding: var(--space-sm) var(--space-base);
    text-align: left;
    font-weight: 600;
    color: var(--color-ink);
    font-size: 13px;
}
.data-table td {
    border: 1px solid var(--color-hairline);
    padding: var(--space-sm) var(--space-base);
    color: var(--color-body);
}
.data-table tr:nth-child(even) td { background: var(--color-canvas-soft); }

/* CONTACT FORM */
.contact-section {
    background: var(--color-surface-card);
    border: 1px solid var(--color-hairline);
    border-radius: var(--radius-lg);
    padding: var(--space-xxl);
    max-width: 560px;
}
.form-group {
    margin-bottom: var(--space-lg);
}
.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    color: var(--color-ink);
    margin-bottom: var(--space-xs);
}
.form-group input,
.form-group textarea {
    width: 100%;
    background: var(--color-surface-card);
    border: 1px solid var(--color-hairline-strong);
    border-radius: var(--radius-md);
    padding: 12px 16px;
    font-size: 15px;
    font-family: var(--font-sans);
    color: var(--color-ink);
    height: 44px;
    transition: border-color 0.15s;
    outline: none;
}
.form-group textarea {
    height: 120px;
    resize: vertical;
}
.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--color-ink);
}
.form-group input.error,
.form-group textarea.error {
    border-color: var(--color-error);
}
.field-error {
    font-size: 12px;
    color: var(--color-error);
    margin-top: 4px;
    display: none;
}
.btn-primary {
    background: var(--color-primary);
    color: var(--color-on-primary);
    border: none;
    border-radius: var(--radius-md);
    padding: 10px 18px;
    font-size: 14px;
    font-weight: 500;
    font-family: var(--font-sans);
    height: 40px;
    cursor: pointer;
    transition: background 0.15s;
}
.btn-primary:hover { background: var(--color-primary-active); }
.btn-primary:disabled { opacity: 0.6; cursor: not-allowed; }
.form-success {
    display: none;
    background: var(--color-canvas-soft);
    border: 1px solid var(--color-hairline);
    border-left: 3px solid var(--color-success);
    border-radius: var(--radius-md);
    padding: var(--space-base) var(--space-lg);
    font-size: 15px;
    color: var(--color-success);
    margin-top: var(--space-base);
}

/* BREADCRUMB */
.breadcrumb {
    display: flex;
    gap: var(--space-xs);
    align-items: center;
    flex-wrap: wrap;
    padding: var(--space-base) 0;
    border-bottom: 1px solid var(--color-hairline);
    margin-bottom: var(--space-section);
}
.breadcrumb a {
    font-size: 13px;
    color: var(--color-muted);
    transition: color 0.15s;
}
.breadcrumb a:hover { color: var(--color-ink); }
.breadcrumb .sep {
    font-size: 13px;
    color: var(--color-hairline-strong);
}
.breadcrumb .current {
    font-size: 13px;
    color: var(--color-body);
}

/* COOKIE BANNER */
.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--color-ink);
    color: var(--color-canvas);
    padding: var(--space-base) var(--space-lg);
    z-index: 999;
    display: none;
}
.cookie-banner.show { display: block; }
.cookie-inner {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-lg);
    flex-wrap: wrap;
}
.cookie-text {
    font-size: 14px;
    color: var(--color-canvas);
    flex: 1;
}
.cookie-text a { color: var(--color-primary); border-bottom: none; }
.cookie-actions {
    display: flex;
    gap: var(--space-sm);
    flex-shrink: 0;
}
.btn-cookie-accept {
    background: var(--color-primary);
    color: var(--color-on-primary);
    border: none;
    border-radius: var(--radius-md);
    padding: 8px 16px;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.15s;
    font-family: var(--font-sans);
}
.btn-cookie-accept:hover { background: var(--color-primary-active); }
.btn-cookie-reject {
    background: transparent;
    color: var(--color-canvas);
    border: 1px solid rgba(247,247,244,0.3);
    border-radius: var(--radius-md);
    padding: 8px 16px;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: border-color 0.15s;
    font-family: var(--font-sans);
}
.btn-cookie-reject:hover { border-color: rgba(247,247,244,0.6); }

/* FOOTER */
.site-footer {
    background: var(--color-canvas);
    border-top: 1px solid var(--color-hairline);
    padding: 64px 0 48px;
}
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--space-section);
    margin-bottom: var(--space-xxl);
}
.footer-brand .logo {
    font-size: 18px;
    font-weight: 600;
    color: var(--color-ink);
    margin-bottom: var(--space-base);
}
.footer-brand .logo span { color: var(--color-primary); }
.footer-brand p {
    font-size: 14px;
    line-height: 1.6;
    color: var(--color-body);
    max-width: 260px;
}
.footer-col h4 {
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    color: var(--color-ink);
    margin-bottom: var(--space-base);
}
.footer-col ul li a {
    font-size: 14px;
    color: var(--color-body);
    display: block;
    padding: 4px 0;
    transition: color 0.15s;
}
.footer-col ul li a:hover { color: var(--color-ink); }
.footer-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: var(--space-base);
    padding-top: var(--space-lg);
    border-top: 1px solid var(--color-hairline);
}
.footer-bottom p {
    font-size: 13px;
    color: var(--color-muted);
}

/* PAGE HERO */
.page-hero {
    padding: var(--space-xxl) 0;
    border-bottom: 1px solid var(--color-hairline);
}
.page-hero h1 {
    font-size: 42px;
    font-weight: 400;
    line-height: 1.15;
    letter-spacing: -1px;
    color: var(--color-ink);
    margin-bottom: var(--space-base);
}
.page-hero p {
    font-size: 18px;
    line-height: 1.55;
    color: var(--color-body);
    max-width: 560px;
}

/* ABOUT PAGE */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-section);
    align-items: start;
}
.about-img {
    width: 100%;
    height: 360px;
    object-fit: cover;
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-hairline);
}

/* PRIVACY/TERMS */
.legal-body h2 {
    font-size: 22px;
    font-weight: 400;
    color: var(--color-ink);
    margin-top: var(--space-section);
    margin-bottom: var(--space-base);
    letter-spacing: -0.2px;
}
.legal-body p {
    font-size: 15px;
    line-height: 1.7;
    color: var(--color-body);
    margin-bottom: var(--space-base);
}
.legal-body ul {
    list-style: disc;
    padding-left: var(--space-lg);
    margin-bottom: var(--space-base);
}
.legal-body ul li {
    font-size: 15px;
    line-height: 1.65;
    color: var(--color-body);
    margin-bottom: var(--space-xs);
}

/* RESPONSIVE */
@media (max-width: 1024px) {
    .hero-band h1 { font-size: 42px; }
    .grid-3 { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: var(--space-xxl); }
    .article-layout { grid-template-columns: 1fr; gap: var(--space-xxl); }
    .article-sidebar { position: static; }
    .about-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
    .nav-links { display: none; }
    .nav-hamburger { display: flex; }
    .hero-band h1 { font-size: 34px; letter-spacing: -0.8px; }
    .hero-band { padding: var(--space-xxl) 0; }
    .section { padding: var(--space-xxl) 0; }
    .grid-3 { grid-template-columns: 1fr; }
    .grid-2 { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; gap: var(--space-xl); }
    .article-body h1 { font-size: 30px; }
    .article-hero-img { height: 260px; }
    .contact-section { padding: var(--space-lg); }
    .cookie-inner { flex-direction: column; align-items: flex-start; }
    .display-lg { font-size: 28px; }
}

@media (max-width: 480px) {
    .container { padding: 0 var(--space-base); }
    .hero-band h1 { font-size: 28px; }
    .page-hero h1 { font-size: 30px; }
}