@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 {
    --color-primary: #f54e00;
    --color-primary-active: #d04200;
    --color-canvas: #f7f7f4;
    --color-canvas-soft: #fafaf7;
    --color-surface-card: #ffffff;
    --color-surface-strong: #e6e5e0;
    --color-hairline: #e6e5e0;
    --color-hairline-soft: #efeee8;
    --color-hairline-strong: #cfcdc4;
    --color-ink: #26251e;
    --color-body: #5a5852;
    --color-body-strong: #26251e;
    --color-muted: #807d72;
    --color-muted-soft: #a09c92;
    --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;
}

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

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

a {
    color: inherit;
    text-decoration: none;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

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

/* ===== TOP NAV ===== */
.site-nav {
    background: var(--color-canvas);
    border-bottom: 1px solid var(--color-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-wordmark {
    font-family: var(--font-sans);
    font-size: 18px;
    font-weight: 600;
    color: var(--color-ink);
    letter-spacing: -0.3px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-wordmark .flame {
    color: var(--color-primary);
    font-size: 20px;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 28px;
    list-style: none;
}

.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: 8px;
    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-menu {
    display: none;
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--color-canvas);
    border-bottom: 1px solid var(--color-hairline);
    padding: 16px 24px;
    z-index: 99;
}

.nav-mobile-menu.open {
    display: block;
}

.nav-mobile-menu ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.nav-mobile-menu a {
    font-size: 15px;
    font-weight: 500;
    color: var(--color-ink);
}

/* ===== HERO ===== */
.hero {
    padding: 80px 0 64px;
    background: var(--color-canvas);
}

.hero-eyebrow {
    display: inline-block;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.88px;
    text-transform: uppercase;
    color: var(--color-muted);
    background: var(--color-surface-strong);
    padding: 4px 10px;
    border-radius: var(--radius-pill);
    margin-bottom: 24px;
}

.hero h1 {
    font-size: 64px;
    font-weight: 400;
    line-height: 1.1;
    letter-spacing: -2px;
    color: var(--color-ink);
    max-width: 720px;
    margin-bottom: 24px;
}

.hero h1 em {
    font-style: normal;
    color: var(--color-primary);
}

.hero-lead {
    font-size: 18px;
    font-weight: 400;
    line-height: 1.6;
    color: var(--color-body);
    max-width: 560px;
    margin-bottom: 40px;
}

.hero-image-wrap {
    margin-top: 56px;
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--color-hairline);
    max-height: 480px;
}

.hero-image-wrap img {
    width: 100%;
    height: 480px;
    object-fit: cover;
    object-position: center;
}

/* ===== SECTION LABELS ===== */
.section-label {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.88px;
    text-transform: uppercase;
    color: var(--color-muted);
    margin-bottom: 16px;
}

/* ===== SECTION HEADINGS ===== */
.section-heading {
    font-size: 36px;
    font-weight: 400;
    letter-spacing: -0.72px;
    color: var(--color-ink);
    margin-bottom: 16px;
    line-height: 1.2;
}

.section-subhead {
    font-size: 16px;
    color: var(--color-body);
    max-width: 560px;
    line-height: 1.6;
    margin-bottom: 48px;
}

/* ===== ARTICLES SECTION ===== */
.articles-section {
    padding: 80px 0;
    background: var(--color-canvas);
}

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

.article-card {
    background: var(--color-surface-card);
    border: 1px solid var(--color-hairline);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: border-color 0.15s;
}

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

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

.article-card-body {
    padding: 24px;
}

.article-card-tag {
    display: inline-block;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.88px;
    text-transform: uppercase;
    color: var(--color-muted);
    background: var(--color-surface-strong);
    padding: 3px 8px;
    border-radius: var(--radius-pill);
    margin-bottom: 12px;
}

.article-card-title {
    font-size: 20px;
    font-weight: 400;
    letter-spacing: -0.2px;
    color: var(--color-ink);
    line-height: 1.3;
    margin-bottom: 12px;
}

.article-card-excerpt {
    font-size: 14px;
    color: var(--color-body);
    line-height: 1.6;
    margin-bottom: 20px;
}

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

/* ===== INFO BANDS ===== */
.info-band {
    padding: 80px 0;
    background: var(--color-canvas-soft);
    border-top: 1px solid var(--color-hairline-soft);
    border-bottom: 1px solid var(--color-hairline-soft);
}

.info-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
}

.info-grid.reverse {
    direction: rtl;
}

.info-grid.reverse > * {
    direction: ltr;
}

.info-grid-content h2 {
    font-size: 32px;
    font-weight: 400;
    letter-spacing: -0.5px;
    color: var(--color-ink);
    margin-bottom: 16px;
    line-height: 1.25;
}

.info-grid-content p {
    font-size: 16px;
    color: var(--color-body);
    line-height: 1.7;
    margin-bottom: 16px;
}

.info-grid-content p:last-child {
    margin-bottom: 0;
}

.info-grid-img {
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--color-hairline);
}

.info-grid-img img {
    width: 100%;
    height: 320px;
    object-fit: cover;
}

/* ===== FEATURE CARDS ===== */
.features-section {
    padding: 80px 0;
    background: var(--color-canvas);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.feature-card {
    background: var(--color-surface-card);
    border: 1px solid var(--color-hairline);
    border-radius: var(--radius-lg);
    padding: 24px;
}

.feature-card-icon {
    font-size: 24px;
    margin-bottom: 16px;
    color: var(--color-primary);
}

.feature-card h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--color-ink);
    margin-bottom: 10px;
    line-height: 1.4;
}

.feature-card p {
    font-size: 15px;
    color: var(--color-body);
    line-height: 1.65;
}

/* ===== CONTACT FORM ===== */
.contact-section {
    padding: 80px 0;
    background: var(--color-canvas-soft);
    border-top: 1px solid var(--color-hairline-soft);
}

.contact-wrap {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: start;
}

.contact-info h2 {
    font-size: 32px;
    font-weight: 400;
    letter-spacing: -0.5px;
    color: var(--color-ink);
    margin-bottom: 16px;
}

.contact-info p {
    font-size: 16px;
    color: var(--color-body);
    line-height: 1.7;
    margin-bottom: 24px;
}

.contact-detail {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.contact-detail-item {
    font-size: 15px;
    color: var(--color-body);
    display: flex;
    gap: 10px;
    align-items: flex-start;
}

.contact-detail-item strong {
    color: var(--color-ink);
    min-width: 60px;
}

.contact-form-wrap {
    background: var(--color-surface-card);
    border: 1px solid var(--color-hairline);
    border-radius: var(--radius-lg);
    padding: 32px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    color: var(--color-ink);
    margin-bottom: 8px;
}

.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-family: var(--font-sans);
    font-size: 16px;
    color: var(--color-ink);
    outline: none;
    transition: border-color 0.15s;
    height: 44px;
}

.form-group textarea {
    height: auto;
    min-height: 120px;
    resize: vertical;
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--color-ink);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--color-muted-soft);
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--color-primary);
    color: var(--color-on-primary);
    font-family: var(--font-sans);
    font-size: 14px;
    font-weight: 500;
    padding: 10px 18px;
    height: 40px;
    border-radius: var(--radius-md);
    border: none;
    cursor: pointer;
    transition: background 0.15s;
    width: 100%;
}

.btn-primary:hover {
    background: var(--color-primary-active);
}

.btn-primary:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.form-status {
    margin-top: 16px;
    font-size: 14px;
    font-weight: 500;
    min-height: 20px;
}

.form-status.success {
    color: var(--color-success);
}

.form-status.loading {
    color: var(--color-muted);
}

/* ===== ARTICLE PAGE ===== */
.article-header {
    padding: 64px 0 48px;
    background: var(--color-canvas);
    border-bottom: 1px solid var(--color-hairline);
}

.article-breadcrumb {
    font-size: 14px;
    color: var(--color-muted);
    margin-bottom: 24px;
}

.article-breadcrumb a {
    color: var(--color-muted);
    transition: color 0.15s;
}

.article-breadcrumb a:hover {
    color: var(--color-ink);
}

.article-breadcrumb span {
    margin: 0 8px;
}

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

.article-meta {
    font-size: 14px;
    color: var(--color-muted);
    display: flex;
    gap: 20px;
    align-items: center;
    flex-wrap: wrap;
}

.article-meta-tag {
    background: var(--color-surface-strong);
    color: var(--color-muted);
    padding: 3px 10px;
    border-radius: var(--radius-pill);
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.88px;
    text-transform: uppercase;
}

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

.article-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 300px;
    gap: 64px;
    align-items: start;
}

.article-content h2 {
    font-size: 28px;
    font-weight: 400;
    letter-spacing: -0.4px;
    color: var(--color-ink);
    margin: 40px 0 16px;
    line-height: 1.25;
}

.article-content h2:first-child {
    margin-top: 0;
}

.article-content h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--color-ink);
    margin: 28px 0 12px;
}

.article-content p {
    font-size: 16px;
    color: var(--color-body);
    line-height: 1.75;
    margin-bottom: 20px;
}

.article-content ul,
.article-content ol {
    margin: 0 0 20px 24px;
}

.article-content li {
    font-size: 16px;
    color: var(--color-body);
    line-height: 1.7;
    margin-bottom: 8px;
}

.article-content strong {
    color: var(--color-ink);
    font-weight: 600;
}

.article-content a {
    color: var(--color-primary);
    text-decoration: underline;
    text-underline-offset: 3px;
}

.article-content a:hover {
    color: var(--color-primary-active);
}

.article-content .article-img {
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--color-hairline);
    margin: 32px 0;
}

.article-content .article-img img {
    width: 100%;
    height: 400px;
    object-fit: cover;
}

.article-content .article-img figcaption {
    padding: 12px 16px;
    font-size: 13px;
    color: var(--color-muted);
    background: var(--color-canvas-soft);
}

.info-box {
    background: var(--color-surface-card);
    border: 1px solid var(--color-hairline);
    border-left: 3px solid var(--color-primary);
    border-radius: var(--radius-md);
    padding: 20px 24px;
    margin: 24px 0;
}

.info-box p {
    margin-bottom: 0;
    font-size: 15px;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    margin: 24px 0;
    font-size: 15px;
}

.data-table th {
    background: var(--color-surface-strong);
    color: var(--color-ink);
    font-weight: 600;
    font-size: 13px;
    padding: 12px 16px;
    text-align: left;
    border-bottom: 1px solid var(--color-hairline);
}

.data-table td {
    padding: 12px 16px;
    border-bottom: 1px solid var(--color-hairline-soft);
    color: var(--color-body);
}

.data-table tr:last-child td {
    border-bottom: none;
}

.data-table tr:nth-child(even) td {
    background: var(--color-canvas-soft);
}

.article-sidebar {
    position: sticky;
    top: 80px;
}

.sidebar-box {
    background: var(--color-surface-card);
    border: 1px solid var(--color-hairline);
    border-radius: var(--radius-lg);
    padding: 24px;
    margin-bottom: 24px;
}

.sidebar-box h4 {
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.88px;
    text-transform: uppercase;
    color: var(--color-muted);
    margin-bottom: 16px;
}

.sidebar-box ul {
    list-style: none;
}

.sidebar-box ul li {
    border-bottom: 1px solid var(--color-hairline-soft);
    padding: 10px 0;
}

.sidebar-box ul li:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.sidebar-box ul li a {
    font-size: 14px;
    color: var(--color-body);
    transition: color 0.15s;
    line-height: 1.5;
}

.sidebar-box ul li a:hover {
    color: var(--color-ink);
}

.toc-list {
    list-style: none;
    counter-reset: toc;
}

.toc-list li {
    counter-increment: toc;
    border-bottom: 1px solid var(--color-hairline-soft);
    padding: 10px 0;
}

.toc-list li:last-child {
    border-bottom: none;
}

.toc-list a {
    font-size: 14px;
    color: var(--color-body);
    display: flex;
    gap: 10px;
    align-items: flex-start;
    line-height: 1.4;
}

.toc-list a::before {
    content: counter(toc) ".";
    color: var(--color-muted);
    min-width: 18px;
    font-size: 13px;
}

.toc-list a:hover {
    color: var(--color-ink);
}

/* ===== PAGE SECTIONS ===== */
.page-header {
    padding: 64px 0 48px;
    background: var(--color-canvas);
    border-bottom: 1px solid var(--color-hairline);
}

.page-header h1 {
    font-size: 44px;
    font-weight: 400;
    letter-spacing: -1px;
    color: var(--color-ink);
    margin-bottom: 16px;
}

.page-header p {
    font-size: 17px;
    color: var(--color-body);
    max-width: 560px;
    line-height: 1.65;
}

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

.page-content {
    max-width: 760px;
}

.page-content h2 {
    font-size: 26px;
    font-weight: 400;
    letter-spacing: -0.3px;
    color: var(--color-ink);
    margin: 36px 0 14px;
}

.page-content h2:first-child {
    margin-top: 0;
}

.page-content h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--color-ink);
    margin: 24px 0 10px;
}

.page-content p {
    font-size: 16px;
    color: var(--color-body);
    line-height: 1.75;
    margin-bottom: 18px;
}

.page-content ul, .page-content ol {
    margin: 0 0 18px 24px;
}

.page-content li {
    font-size: 16px;
    color: var(--color-body);
    line-height: 1.7;
    margin-bottom: 6px;
}

.page-content strong {
    color: var(--color-ink);
}

.page-content a {
    color: var(--color-primary);
    text-decoration: underline;
    text-underline-offset: 3px;
}

.divider {
    border: none;
    border-top: 1px solid var(--color-hairline);
    margin: 40px 0;
}

/* ===== 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: 40px;
    margin-bottom: 48px;
}

.footer-brand h3 {
    font-size: 16px;
    font-weight: 600;
    color: var(--color-ink);
    margin-bottom: 12px;
}

.footer-brand p {
    font-size: 14px;
    color: var(--color-body);
    line-height: 1.65;
    max-width: 260px;
}

.footer-col h4 {
    font-size: 13px;
    font-weight: 600;
    color: var(--color-ink);
    margin-bottom: 16px;
    letter-spacing: 0.2px;
}

.footer-col ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-col ul a {
    font-size: 14px;
    color: var(--color-body);
    transition: color 0.15s;
}

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

.footer-bottom {
    border-top: 1px solid var(--color-hairline);
    padding-top: 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
}

.footer-bottom p {
    font-size: 13px;
    color: var(--color-muted);
}

.footer-bottom-links {
    display: flex;
    gap: 20px;
    list-style: none;
}

.footer-bottom-links a {
    font-size: 13px;
    color: var(--color-muted);
    transition: color 0.15s;
}

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

/* ===== DISCLAIMER ===== */
.disclaimer-bar {
    background: var(--color-canvas-soft);
    border-top: 1px solid var(--color-hairline-soft);
    padding: 16px 0;
    font-size: 13px;
    color: var(--color-muted);
    text-align: center;
    line-height: 1.6;
}

/* ===== COOKIE BANNER ===== */
.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--color-ink);
    color: var(--color-canvas);
    padding: 20px 24px;
    z-index: 999;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    border-top: 1px solid rgba(255,255,255,0.1);
}

.cookie-banner.hidden {
    display: none;
}

.cookie-text {
    font-size: 14px;
    color: var(--color-canvas);
    line-height: 1.5;
    max-width: 640px;
}

.cookie-text a {
    color: var(--color-canvas);
    text-decoration: underline;
    text-underline-offset: 2px;
}

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

.cookie-btn-accept {
    background: var(--color-primary);
    color: var(--color-on-primary);
    border: none;
    border-radius: var(--radius-md);
    padding: 9px 16px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    font-family: var(--font-sans);
    transition: background 0.15s;
}

.cookie-btn-accept:hover {
    background: var(--color-primary-active);
}

.cookie-btn-reject {
    background: transparent;
    color: var(--color-canvas);
    border: 1px solid rgba(255,255,255,0.3);
    border-radius: var(--radius-md);
    padding: 9px 16px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    font-family: var(--font-sans);
    transition: border-color 0.15s;
}

.cookie-btn-reject:hover {
    border-color: rgba(255,255,255,0.6);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
    .hero h1 {
        font-size: 48px;
        letter-spacing: -1.4px;
    }

    .articles-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
    }

    .article-layout {
        grid-template-columns: 1fr;
    }

    .article-sidebar {
        position: static;
    }

    .contact-wrap {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .info-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .info-grid.reverse {
        direction: ltr;
    }
}

@media (max-width: 768px) {
    .hero h1 {
        font-size: 36px;
        letter-spacing: -0.8px;
    }

    .hero-lead {
        font-size: 16px;
    }

    .nav-links {
        display: none;
    }

    .nav-hamburger {
        display: flex;
    }

    .section-heading {
        font-size: 28px;
        letter-spacing: -0.4px;
    }

    .articles-grid {
        grid-template-columns: 1fr;
    }

    .features-grid {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 28px;
    }

    .footer-brand p {
        max-width: 100%;
    }

    .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }

    .article-header h1 {
        font-size: 32px;
        letter-spacing: -0.5px;
    }

    .page-header h1 {
        font-size: 32px;
    }

    .cookie-banner {
        flex-direction: column;
        align-items: flex-start;
    }

    .cookie-buttons {
        width: 100%;
    }

    .cookie-btn-accept,
    .cookie-btn-reject {
        flex: 1;
        text-align: center;
    }
}