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

: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;
    --semantic-success: #1f8a65;
    --semantic-error: #cf2d56;
}

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

html {
    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;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

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

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

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

h1, h2, h3, h4 {
    color: var(--ink);
    font-weight: 400;
}

h1 {
    font-size: 72px;
    line-height: 1.1;
    letter-spacing: -2.16px;
}

h2 {
    font-size: 36px;
    line-height: 1.2;
    letter-spacing: -0.72px;
}

h3 {
    font-size: 26px;
    line-height: 1.25;
    letter-spacing: -0.325px;
}

h4 {
    font-size: 22px;
    line-height: 1.3;
    letter-spacing: -0.11px;
}

p {
    color: var(--body);
    line-height: 1.5;
}

code, pre {
    font-family: 'JetBrains Mono', monospace;
    font-size: 13px;
    line-height: 1.5;
}

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

.site-nav .container {
    display: flex;
    align-items: center;
    height: 100%;
    gap: 32px;
}

.nav-logo {
    font-size: 16px;
    font-weight: 600;
    color: var(--ink);
    letter-spacing: -0.2px;
    flex-shrink: 0;
}

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

.nav-links {
    display: flex;
    align-items: center;
    gap: 24px;
    list-style: none;
    margin-left: auto;
}

.nav-links a {
    font-size: 14px;
    font-weight: 500;
    color: var(--body);
    line-height: 1.4;
    transition: color 0.15s;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--ink);
}

.nav-hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
    margin-left: auto;
}

.nav-hamburger span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--ink);
    border-radius: 1px;
    transition: all 0.2s;
}

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

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

.nav-mobile a {
    display: block;
    font-size: 15px;
    font-weight: 500;
    color: var(--body);
    padding: 10px 0;
    border-bottom: 1px solid var(--hairline-soft);
}

.nav-mobile a:last-child {
    border-bottom: none;
}

.hero-band {
    padding: 80px 0;
    background: var(--canvas);
}

.hero-label {
    display: inline-block;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.88px;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 24px;
}

.hero-band h1 {
    max-width: 820px;
    margin-bottom: 24px;
}

.hero-sub {
    font-size: 16px;
    color: var(--body);
    max-width: 560px;
    margin-bottom: 48px;
    line-height: 1.5;
}

.hero-image {
    margin-top: 64px;
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid var(--hairline);
}

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

.section {
    padding: 80px 0;
}

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

.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;
    color: var(--body);
    max-width: 560px;
    line-height: 1.5;
    margin-bottom: 48px;
}

.divider {
    height: 1px;
    background: var(--hairline);
}

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

.article-card {
    background: var(--surface-card);
    border: 1px solid var(--hairline);
    border-radius: 12px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: border-color 0.15s;
}

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

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

.article-card-body {
    padding: 24px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.article-card-tag {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.88px;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 12px;
    display: block;
}

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

.article-card-excerpt {
    font-size: 14px;
    color: var(--body);
    line-height: 1.5;
    flex: 1;
    margin-bottom: 20px;
}

.article-card-link {
    font-size: 14px;
    font-weight: 500;
    color: var(--ink);
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.article-card-link::after {
    content: '\2192';
}

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

.article-hero-meta {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 24px;
}

.article-hero-tag {
    display: inline-block;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.88px;
    text-transform: uppercase;
    color: var(--muted);
    background: var(--surface-strong);
    border-radius: 9999px;
    padding: 4px 10px;
}

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

.article-hero h1 {
    font-size: 48px;
    line-height: 1.12;
    letter-spacing: -1.2px;
    margin-bottom: 20px;
    max-width: 800px;
}

.article-hero-sub {
    font-size: 18px;
    color: var(--body);
    max-width: 640px;
    line-height: 1.55;
}

.article-hero-image {
    margin-top: 48px;
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid var(--hairline);
}

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

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

.article-layout {
    display: grid;
    grid-template-columns: 1fr 280px;
    gap: 64px;
    align-items: start;
}

.article-content {
    min-width: 0;
}

.article-content h2 {
    font-size: 28px;
    font-weight: 400;
    letter-spacing: -0.5px;
    color: var(--ink);
    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;
    letter-spacing: 0;
}

.article-content p {
    font-size: 16px;
    color: var(--body);
    line-height: 1.65;
    margin-bottom: 20px;
}

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

.article-content ul,
.article-content ol {
    padding-left: 24px;
    margin-bottom: 20px;
}

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

.note-block {
    background: var(--surface-card);
    border: 1px solid var(--hairline);
    border-left: 3px solid var(--primary);
    border-radius: 0 8px 8px 0;
    padding: 16px 20px;
    margin: 24px 0;
}

.note-block p {
    margin-bottom: 0 !important;
    font-size: 14px !important;
}

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

.article-content th {
    text-align: left;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.88px;
    text-transform: uppercase;
    color: var(--muted);
    padding: 10px 16px;
    border-bottom: 1px solid var(--hairline-strong);
    background: var(--surface-card);
}

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

.article-content tr:last-child td {
    border-bottom: none;
}

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

.article-content a:hover {
    text-decoration-color: var(--ink);
}

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

.sidebar-card {
    background: var(--surface-card);
    border: 1px solid var(--hairline);
    border-radius: 12px;
    padding: 24px;
    margin-bottom: 24px;
}

.sidebar-card h4 {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.88px;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 16px;
}

.sidebar-card ul {
    list-style: none;
    padding: 0;
}

.sidebar-card li {
    padding: 8px 0;
    border-bottom: 1px solid var(--hairline-soft);
    font-size: 14px;
    color: var(--body);
}

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

.sidebar-card li a {
    color: var(--body);
}

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

.breadcrumb {
    padding: 14px 0;
    border-bottom: 1px solid var(--hairline-soft);
}

.breadcrumb ol {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--muted);
}

.breadcrumb li a {
    color: var(--muted);
}

.breadcrumb li a:hover {
    color: var(--body);
}

.breadcrumb li:not(:last-child)::after {
    content: '/';
    margin-left: 8px;
    color: var(--hairline-strong);
}

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

.page-hero h1 {
    font-size: 48px;
    line-height: 1.12;
    letter-spacing: -1.2px;
    margin-bottom: 16px;
    max-width: 720px;
}

.page-hero p {
    font-size: 16px;
    max-width: 540px;
    color: var(--body);
}

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

.page-content {
    max-width: 720px;
}

.page-content h2 {
    font-size: 24px;
    font-weight: 400;
    letter-spacing: -0.3px;
    color: var(--ink);
    margin-top: 40px;
    margin-bottom: 12px;
}

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

.page-content p {
    color: var(--body);
    line-height: 1.65;
    margin-bottom: 16px;
}

.page-content ul, .page-content ol {
    padding-left: 24px;
    margin-bottom: 16px;
}

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

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

.contact-form-wrap {
    background: var(--surface-card);
    border: 1px solid var(--hairline);
    border-radius: 12px;
    padding: 32px;
    margin-top: 48px;
    max-width: 720px;
}

.contact-form-wrap h2 {
    font-size: 26px;
    font-weight: 400;
    letter-spacing: -0.325px;
    color: var(--ink);
    margin-bottom: 8px;
}

.contact-form-wrap > p {
    font-size: 14px;
    color: var(--muted);
    margin-bottom: 28px;
}

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

.form-group label {
    display: block;
    font-size: 13px;
    font-weight: 500;
    color: var(--ink);
    margin-bottom: 6px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    background: var(--canvas);
    border: 1px solid var(--hairline-strong);
    border-radius: 8px;
    padding: 12px 16px;
    font-size: 16px;
    font-family: inherit;
    color: var(--ink);
    height: 44px;
    outline: none;
    transition: border-color 0.15s;
}

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

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

.form-group textarea {
    height: auto;
    min-height: 110px;
    resize: vertical;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.btn-submit {
    background: var(--primary);
    color: var(--on-primary);
    border: none;
    border-radius: 8px;
    padding: 10px 18px;
    height: 40px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.15s;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

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

.btn-submit:disabled {
    opacity: 0.65;
    cursor: not-allowed;
}

.form-success {
    display: none;
    background: #eaf5f0;
    border: 1px solid #9bcbb8;
    border-radius: 8px;
    padding: 14px 18px;
    color: var(--semantic-success);
    font-size: 14px;
    margin-top: 16px;
}

.form-success.visible {
    display: block;
}

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

.footer-brand span {
    color: var(--primary);
}

.footer-desc {
    font-size: 14px;
    color: var(--muted);
    line-height: 1.6;
    max-width: 240px;
}

.footer-col h5 {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.88px;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 16px;
}

.footer-col ul {
    list-style: none;
}

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

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

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

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

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

.footer-legal {
    display: flex;
    gap: 20px;
}

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

.footer-legal a:hover {
    color: var(--body);
}

.cookie-banner {
    position: fixed;
    bottom: 24px;
    left: 24px;
    max-width: 480px;
    background: var(--ink);
    color: var(--canvas);
    border-radius: 12px;
    padding: 20px 24px;
    z-index: 9999;
    display: none;
}

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

.cookie-banner p {
    font-size: 13px;
    line-height: 1.5;
    color: #ccc9c0;
    margin-bottom: 16px;
}

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

.cookie-actions {
    display: flex;
    gap: 10px;
}

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

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

.cookie-btn-reject {
    background: transparent;
    color: var(--canvas);
    border: 1px solid rgba(255,255,255,0.25);
    border-radius: 8px;
    padding: 8px 16px;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: border-color 0.15s;
}

.cookie-btn-reject:hover {
    border-color: rgba(255,255,255,0.5);
}

.disclaimer {
    background: var(--surface-card);
    border: 1px solid var(--hairline);
    border-radius: 8px;
    padding: 12px 16px;
    font-size: 12px;
    color: var(--muted);
    line-height: 1.5;
    margin-top: 48px;
}

@media (max-width: 1024px) {
    h1 { font-size: 56px; }
    .articles-grid { grid-template-columns: repeat(2, 1fr); }
    .article-layout { grid-template-columns: 1fr; }
    .article-sidebar { position: static; }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
    .article-hero h1 { font-size: 40px; }
    .page-hero h1 { font-size: 40px; }
}

@media (max-width: 768px) {
    h1 { font-size: 36px; letter-spacing: -0.8px; }
    .hero-band h1 { font-size: 32px; letter-spacing: -0.8px; }
    .nav-links { display: none; }
    .nav-hamburger { display: flex; }
    .hero-image img { height: 280px; }
    .articles-grid { grid-template-columns: 1fr; }
    .form-row { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .section { padding: 48px 0; }
    .hero-band { padding: 48px 0; }
    .article-hero { padding: 40px 0 32px; }
    .article-hero h1 { font-size: 28px; letter-spacing: -0.5px; }
    .article-hero-image img { height: 260px; }
    .article-body { padding: 40px 0; }
    .page-hero { padding: 40px 0 32px; }
    .page-hero h1 { font-size: 30px; letter-spacing: -0.5px; }
    .page-body { padding: 40px 0; }
}

@media (max-width: 640px) {
    .container { padding: 0 16px; }
    .footer-grid { grid-template-columns: 1fr; gap: 28px; }
    .cookie-banner { left: 16px; right: 16px; bottom: 16px; max-width: none; }
    .contact-form-wrap { padding: 24px 20px; }
}