*, *::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;
    --on-primary: #ffffff;
    --ink: #26251e;
    --body: #5a5852;
    --body-strong: #26251e;
    --muted: #807d72;
    --muted-soft: #a09c92;
    --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;
}

html { scroll-behavior: smooth; }

body {
    background: 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;
    -webkit-font-smoothing: antialiased;
}

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

.nav-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    font-size: 18px;
    font-weight: 600;
    color: var(--ink);
    letter-spacing: -0.3px;
    flex-shrink: 0;
}

.nav-logo:hover { color: var(--primary); }

.nav-menu {
    display: flex;
    align-items: center;
    gap: 8px;
    list-style: none;
}

.nav-link {
    font-size: 14px;
    font-weight: 500;
    color: var(--body);
    padding: 6px 12px;
    border-radius: var(--radius-sm);
    transition: color 0.15s, background 0.15s;
    line-height: 1.4;
}

.nav-link:hover { color: var(--ink); background: var(--hairline-soft); }
.nav-link--active { color: var(--ink); }

.nav-burger {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    width: 36px;
    height: 36px;
}

.nav-burger span {
    display: block;
    width: 20px;
    height: 2px;
    background: var(--ink);
    border-radius: 2px;
    transition: transform 0.2s;
}

.hero {
    padding: 80px 0;
    border-bottom: 1px solid var(--hairline);
}

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

.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: var(--radius-pill);
    margin-bottom: 24px;
}

.hero h1 {
    font-size: 72px;
    font-weight: 400;
    line-height: 1.1;
    letter-spacing: -2.16px;
    color: var(--ink);
    max-width: 820px;
    margin-bottom: 24px;
}

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

.hero-image {
    border-radius: var(--radius-lg);
    border: 1px solid var(--hairline);
    overflow: hidden;
    max-height: 480px;
    object-fit: cover;
    width: 100%;
}

.section { padding: 80px 0; }
.section--alt { background: var(--canvas-soft); }
.section--dark { background: var(--ink); }

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

.section-label--light { color: var(--muted-soft); }

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

.section-title--light { color: var(--canvas); }

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

.section-sub--light { color: var(--muted-soft); }

.cards-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

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

.card-tag {
    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: var(--radius-pill);
    display: inline-block;
    margin-bottom: 16px;
}

.card h3 {
    font-size: 22px;
    font-weight: 400;
    letter-spacing: -0.11px;
    color: var(--ink);
    margin-bottom: 12px;
    line-height: 1.3;
}

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

.articles-list { display: flex; flex-direction: column; gap: 1px; }

.article-row {
    display: grid;
    grid-template-columns: 1fr auto;
    align-items: center;
    gap: 24px;
    padding: 24px 0;
    border-bottom: 1px solid var(--hairline);
}

.article-row:first-child { border-top: 1px solid var(--hairline); }

.article-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 8px;
}

.article-tag {
    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: var(--radius-pill);
}

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

.article-row h3 {
    font-size: 22px;
    font-weight: 400;
    letter-spacing: -0.11px;
    color: var(--ink);
    margin-bottom: 8px;
    line-height: 1.3;
}

.article-row h3 a { color: var(--ink); }
.article-row h3 a:hover { color: var(--primary); }

.article-row p {
    font-size: 14px;
    color: var(--body);
    line-height: 1.5;
    max-width: 580px;
}

.article-arrow {
    font-size: 20px;
    color: var(--muted);
    flex-shrink: 0;
}

.info-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    align-items: start;
}

.info-image {
    border-radius: var(--radius-lg);
    border: 1px solid var(--hairline);
    overflow: hidden;
    aspect-ratio: 4/3;
    object-fit: cover;
    width: 100%;
}

.info-content h2 {
    font-size: 36px;
    font-weight: 400;
    letter-spacing: -0.72px;
    color: var(--ink);
    margin-bottom: 20px;
    line-height: 1.2;
}

.info-content p {
    font-size: 16px;
    color: var(--body);
    line-height: 1.5;
    margin-bottom: 16px;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
    margin: 24px 0;
}

.data-table th {
    background: var(--surface-strong);
    color: var(--ink);
    font-weight: 600;
    font-size: 11px;
    letter-spacing: 0.88px;
    text-transform: uppercase;
    padding: 12px 16px;
    text-align: left;
    border-bottom: 1px solid var(--hairline-strong);
}

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

.data-table tr:last-child td { border-bottom: none; }
.data-table tr:hover td { background: var(--canvas-soft); }

.data-table-wrap {
    border: 1px solid var(--hairline);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.page-hero {
    padding: 80px 0 48px;
    border-bottom: 1px solid var(--hairline);
}

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

.page-hero p {
    font-size: 16px;
    color: var(--body);
    max-width: 600px;
    line-height: 1.5;
}

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

.article-content {
    max-width: 740px;
    margin: 0 auto;
}

.article-content h2 {
    font-size: 26px;
    font-weight: 400;
    letter-spacing: -0.325px;
    color: var(--ink);
    margin: 48px 0 16px;
    line-height: 1.25;
}

.article-content h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--ink);
    margin: 32px 0 12px;
    line-height: 1.3;
}

.article-content p {
    font-size: 16px;
    color: var(--body);
    line-height: 1.6;
    margin-bottom: 20px;
}

.article-content ul, .article-content ol {
    margin: 16px 0 20px 24px;
}

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

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

.article-content img {
    border-radius: var(--radius-lg);
    border: 1px solid var(--hairline);
    margin: 32px 0;
    width: 100%;
}

.article-content .note {
    background: var(--canvas-soft);
    border: 1px solid var(--hairline);
    border-left: 4px solid var(--hairline-strong);
    border-radius: var(--radius-md);
    padding: 16px 20px;
    margin: 24px 0;
    font-size: 14px;
    color: var(--body);
    line-height: 1.5;
}

.article-content .caption {
    font-size: 13px;
    color: var(--muted);
    margin-top: -24px;
    margin-bottom: 32px;
    line-height: 1.4;
}

.article-sidebar {
    position: sticky;
    top: 80px;
    width: 260px;
    flex-shrink: 0;
}

.toc {
    background: var(--surface-card);
    border: 1px solid var(--hairline);
    border-radius: var(--radius-lg);
    padding: 20px;
}

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

.toc-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.toc-list a {
    font-size: 14px;
    color: var(--body);
    line-height: 1.4;
    transition: color 0.15s;
}

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

.article-layout {
    display: flex;
    gap: 48px;
    align-items: flex-start;
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 24px;
}

.contact-form-section { padding: 80px 0; }

.form-card {
    background: var(--surface-card);
    border: 1px solid var(--hairline);
    border-radius: var(--radius-lg);
    padding: 40px;
    max-width: 560px;
}

.form-title {
    font-size: 26px;
    font-weight: 400;
    letter-spacing: -0.325px;
    color: var(--ink);
    margin-bottom: 8px;
}

.form-sub {
    font-size: 14px;
    color: var(--muted);
    margin-bottom: 32px;
    line-height: 1.5;
}

.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: var(--radius-md);
    padding: 12px 16px;
    height: 44px;
    font-size: 16px;
    font-family: inherit;
    color: var(--ink);
    transition: border-color 0.15s;
    outline: none;
}

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

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

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

.btn-primary {
    background: var(--primary);
    color: var(--on-primary);
    border: none;
    border-radius: var(--radius-md);
    padding: 10px 18px;
    height: 40px;
    font-size: 14px;
    font-weight: 500;
    font-family: inherit;
    cursor: pointer;
    transition: background 0.15s;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

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

.form-msg {
    margin-top: 16px;
    font-size: 14px;
    padding: 12px 16px;
    border-radius: var(--radius-md);
    display: none;
}

.form-msg--success {
    background: #e8f7f2;
    color: var(--semantic-success);
    border: 1px solid #a8dcc8;
}

.form-msg--error {
    background: #fde8ed;
    color: var(--semantic-error);
    border: 1px solid #f3aab8;
}

.cookie-banner {
    position: fixed;
    bottom: 24px;
    left: 24px;
    right: 24px;
    max-width: 520px;
    background: var(--ink);
    color: var(--canvas);
    border-radius: var(--radius-lg);
    padding: 20px 24px;
    z-index: 1000;
    display: none;
    box-shadow: 0 4px 24px rgba(38,37,30,0.18);
}

.cookie-banner.visible { display: block; }

.cookie-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--canvas);
    margin-bottom: 6px;
}

.cookie-text {
    font-size: 13px;
    color: var(--muted-soft);
    margin-bottom: 16px;
    line-height: 1.5;
}

.cookie-text a { color: var(--muted-soft); text-decoration: underline; }

.cookie-actions {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.btn-cookie-accept {
    background: var(--primary);
    color: var(--on-primary);
    border: none;
    border-radius: var(--radius-md);
    padding: 8px 16px;
    font-size: 13px;
    font-weight: 500;
    font-family: inherit;
    cursor: pointer;
    transition: background 0.15s;
}

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

.btn-cookie-reject {
    background: transparent;
    color: var(--muted-soft);
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: var(--radius-md);
    padding: 8px 16px;
    font-size: 13px;
    font-weight: 500;
    font-family: inherit;
    cursor: pointer;
    transition: border-color 0.15s, color 0.15s;
}

.btn-cookie-reject:hover { border-color: rgba(255,255,255,0.4); color: var(--canvas); }

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

.footer-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 48px;
}

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

.footer-tagline {
    font-size: 14px;
    color: var(--body);
    line-height: 1.5;
    max-width: 260px;
}

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

.site-footer ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.site-footer ul a {
    font-size: 14px;
    color: var(--body);
    line-height: 1.4;
    transition: color 0.15s;
}

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

.footer-bottom {
    max-width: 1200px;
    margin: 0 auto;
    padding: 24px 24px 0;
    border-top: 1px solid var(--hairline);
}

.footer-bottom p {
    font-size: 13px;
    color: var(--muted);
    line-height: 1.5;
    margin-bottom: 8px;
}

.footer-disclaimer {
    font-size: 12px;
    color: var(--muted-soft);
    line-height: 1.5;
}

.page-content {
    max-width: 800px;
    margin: 0 auto;
    padding: 64px 24px;
}

.page-content h2 {
    font-size: 26px;
    font-weight: 400;
    letter-spacing: -0.325px;
    color: var(--ink);
    margin: 40px 0 16px;
    line-height: 1.25;
}

.page-content h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--ink);
    margin: 28px 0 12px;
}

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

.page-content ul, .page-content ol {
    margin: 12px 0 16px 24px;
}

.page-content li {
    font-size: 16px;
    color: var(--body);
    line-height: 1.6;
    margin-bottom: 6px;
}

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

@media (max-width: 1024px) {
    .hero h1 { font-size: 56px; letter-spacing: -1.5px; }
    .cards-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-inner { grid-template-columns: 1fr 1fr; gap: 32px; }
    .info-grid { grid-template-columns: 1fr; }
    .article-layout { flex-direction: column; }
    .article-sidebar { position: static; width: 100%; }
}

@media (max-width: 768px) {
    .nav-burger { display: flex; }
    .nav-menu {
        display: none;
        position: absolute;
        top: 64px;
        left: 0;
        right: 0;
        background: var(--canvas);
        border-bottom: 1px solid var(--hairline);
        flex-direction: column;
        padding: 16px 24px;
        gap: 4px;
    }
    .nav-menu.open { display: flex; }
    .hero h1 { font-size: 36px; letter-spacing: -0.8px; }
    .section { padding: 48px 0; }
    .hero { padding: 48px 0; }
    .cards-grid { grid-template-columns: 1fr; }
    .article-row { grid-template-columns: 1fr; }
    .article-arrow { display: none; }
    .section-title { font-size: 28px; }
    .form-card { padding: 24px; }
}

@media (max-width: 640px) {
    .footer-inner { grid-template-columns: 1fr; gap: 32px; }
    .hero h1 { font-size: 32px; letter-spacing: -0.5px; }
    .page-hero h1 { font-size: 32px; }
    .cookie-banner { left: 16px; right: 16px; bottom: 16px; }
}