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

:root {
    --canvas: #f7f7f4;
    --canvas-soft: #fafaf7;
    --surface-card: #ffffff;
    --surface-strong: #e6e5e0;
    --ink: #26251e;
    --body: #5a5852;
    --muted: #807d72;
    --muted-soft: #a09c92;
    --primary: #f54e00;
    --primary-active: #d04200;
    --on-primary: #ffffff;
    --hairline: #e6e5e0;
    --hairline-soft: #efeee8;
    --hairline-strong: #cfcdc4;
    --success: #1f8a65;
    --error: #cf2d56;
    --font-sans: 'Inter', system-ui, 'Helvetica Neue', Helvetica, Arial, sans-serif;
    --font-mono: 'JetBrains Mono', 'Courier New', 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 {
    background: var(--canvas);
    color: var(--body);
    font-family: var(--font-sans);
    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-header {
    background: var(--canvas);
    border-bottom: 1px solid var(--hairline);
    position: sticky;
    top: 0;
    z-index: 100;
    height: 64px;
    display: flex;
    align-items: center;
}

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

.wordmark {
    font-size: 18px;
    font-weight: 600;
    color: var(--ink);
    letter-spacing: -0.02em;
    flex-shrink: 0;
}

.primary-nav ul {
    display: flex;
    list-style: none;
    gap: 4px;
}

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

.nav-link:hover, .nav-link--active {
    color: var(--ink);
    background: var(--surface-strong);
}

.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: var(--ink);
    border-radius: 2px;
    transition: transform 0.2s, opacity 0.2s;
}

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

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

.hero-badge {
    display: inline-flex;
    align-items: center;
    background: var(--surface-strong);
    color: var(--ink);
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.88px;
    text-transform: uppercase;
    padding: 4px 10px;
    border-radius: var(--radius-pill);
    margin-bottom: 20px;
}

.hero h1 {
    font-size: 56px;
    font-weight: 400;
    line-height: 1.1;
    letter-spacing: -1.5px;
    color: var(--ink);
    margin-bottom: 20px;
}

.hero-sub {
    font-size: 18px;
    color: var(--body);
    line-height: 1.5;
    margin-bottom: 32px;
    max-width: 480px;
}

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

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

.btn-secondary {
    display: inline-flex;
    align-items: center;
    background: var(--surface-card);
    color: var(--ink);
    font-size: 14px;
    font-weight: 500;
    padding: 10px 18px;
    height: 40px;
    border-radius: var(--radius-md);
    border: 1px solid var(--hairline-strong);
    cursor: pointer;
    transition: background 0.15s;
    text-decoration: none;
}

.btn-secondary:hover { background: var(--surface-strong); color: var(--ink); }

.hero-ctas { display: flex; gap: 12px; flex-wrap: wrap; }

.hero-image-wrap {
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--hairline);
    background: var(--surface-card);
    aspect-ratio: 4/3;
}

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

.section { padding: 80px 0; }

.section--border { border-bottom: 1px solid var(--hairline); }

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

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

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

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

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

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

.feature-card__icon {
    font-size: 28px;
    margin-bottom: 16px;
}

.feature-card__title {
    font-size: 18px;
    font-weight: 600;
    color: var(--ink);
    margin-bottom: 8px;
    line-height: 1.4;
}

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

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

.article-card__image {
    aspect-ratio: 16/9;
    overflow: hidden;
    background: var(--surface-strong);
}

.article-card__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s;
}

.article-card:hover .article-card__image img { transform: scale(1.04); }

.article-card__body {
    padding: 20px 24px 24px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.article-card__category {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.88px;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 8px;
}

.article-card__title {
    font-size: 18px;
    font-weight: 600;
    color: var(--ink);
    line-height: 1.35;
    margin-bottom: 10px;
    letter-spacing: -0.1px;
}

.article-card__excerpt {
    font-size: 14px;
    color: var(--body);
    line-height: 1.5;
    flex: 1;
    margin-bottom: 16px;
}

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

.article-link {
    display: inline-flex;
    align-items: center;
    font-size: 14px;
    font-weight: 500;
    color: var(--primary);
    margin-top: 12px;
    gap: 4px;
}

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

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

.page-hero h1 {
    font-size: 48px;
    font-weight: 400;
    letter-spacing: -1px;
    color: var(--ink);
    line-height: 1.15;
    margin-bottom: 16px;
}

.page-hero__sub {
    font-size: 18px;
    color: var(--body);
    max-width: 600px;
}

.content-block {
    padding: 64px 0;
    border-bottom: 1px solid var(--hairline);
}

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

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

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

.content-body h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--ink);
    line-height: 1.3;
    margin-bottom: 12px;
    margin-top: 28px;
}

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

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

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

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

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

.code-block {
    background: var(--surface-card);
    border: 1px solid var(--hairline);
    border-radius: var(--radius-lg);
    padding: 20px;
    font-family: var(--font-mono);
    font-size: 13px;
    line-height: 1.5;
    color: var(--ink);
    overflow-x: auto;
    margin: 20px 0;
}

.info-box {
    background: var(--surface-card);
    border: 1px solid var(--hairline);
    border-left: 3px solid var(--primary);
    border-radius: var(--radius-md);
    padding: 16px 20px;
    margin: 20px 0;
}

.info-box p {
    margin: 0;
    font-size: 14px;
    color: var(--body);
}

.article-hero-image {
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--hairline);
    margin-bottom: 40px;
    max-height: 420px;
}

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

.article-meta {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 32px;
    flex-wrap: wrap;
}

.article-meta__tag {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.88px;
    text-transform: uppercase;
    background: var(--surface-strong);
    color: var(--ink);
    padding: 4px 10px;
    border-radius: var(--radius-pill);
}

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

.contact-section {
    background: var(--surface-card);
    border: 1px solid var(--hairline);
    border-radius: var(--radius-lg);
    padding: 40px;
    max-width: 600px;
}

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

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

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

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

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

.form-message--success {
    background: #e8f5f0;
    color: var(--success);
    border: 1px solid #b3ddd0;
}

.form-message--error {
    background: #fdeef2;
    color: var(--error);
    border: 1px solid #f4b8c6;
}

.loading-indicator {
    display: none;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: var(--muted);
    margin-top: 16px;
}

.spinner {
    width: 16px;
    height: 16px;
    border: 2px solid var(--hairline-strong);
    border-top-color: var(--ink);
    border-radius: 50%;
    animation: spin 0.7s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

.cookie-banner {
    position: fixed;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--ink);
    color: var(--canvas);
    padding: 16px 24px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    gap: 20px;
    max-width: 680px;
    width: calc(100% - 48px);
    z-index: 999;
    box-shadow: none;
    border: 1px solid rgba(255,255,255,0.08);
}

.cookie-banner p {
    font-size: 14px;
    line-height: 1.5;
    color: var(--canvas);
    flex: 1;
}

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

.cookie-actions {
    display: flex;
    gap: 8px;
    flex-shrink: 0;
}

.cookie-accept {
    background: var(--primary);
    color: var(--on-primary);
    border: none;
    border-radius: var(--radius-md);
    padding: 8px 16px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.15s;
    font-family: var(--font-sans);
}

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

.cookie-reject {
    background: transparent;
    color: var(--canvas);
    border: 1px solid rgba(255,255,255,0.3);
    border-radius: var(--radius-md);
    padding: 8px 16px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: border-color 0.15s;
    font-family: var(--font-sans);
}

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

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

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

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

.footer-brand .wordmark { font-size: 18px; font-weight: 600; color: var(--ink); }

.footer-tagline {
    font-size: 14px;
    color: var(--muted);
    line-height: 1.5;
    margin-top: 8px;
    max-width: 220px;
}

.footer-heading {
    font-size: 13px;
    font-weight: 600;
    color: var(--ink);
    letter-spacing: 0.02em;
    margin-bottom: 12px;
}

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

.footer-col li { margin-bottom: 8px; }

.footer-col a,
.footer-col p.body-sm {
    font-size: 14px;
    color: var(--muted);
    line-height: 1.5;
}

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

.footer-bottom {
    border-top: 1px solid var(--hairline);
    padding: 20px 0;
}

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

.body-sm { font-size: 14px; }
.muted { color: var(--muted); }

.two-col {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 64px;
    align-items: start;
}

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

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

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

.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; }

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

@media (max-width: 1024px) {
    .hero-inner { grid-template-columns: 1fr; gap: 40px; }
    .hero h1 { font-size: 48px; }
    .card-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-inner { grid-template-columns: repeat(3, 1fr); }
    .two-col { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
    .nav-toggle { display: flex; }
    .primary-nav {
        display: none;
        position: absolute;
        top: 64px;
        left: 0;
        right: 0;
        background: var(--canvas);
        border-bottom: 1px solid var(--hairline);
        padding: 16px 24px;
    }
    .primary-nav.is-open { display: block; }
    .primary-nav ul { flex-direction: column; gap: 0; }
    .nav-inner { position: relative; flex-wrap: wrap; }
    .hero { padding: 48px 0; }
    .hero h1 { font-size: 36px; letter-spacing: -0.8px; }
    .section { padding: 48px 0; }
    .section-title { font-size: 28px; }
    .page-hero h1 { font-size: 32px; }
    .card-grid, .card-grid--2 { grid-template-columns: 1fr; }
    .footer-inner { grid-template-columns: repeat(2, 1fr); }
    .cookie-banner { flex-direction: column; align-items: flex-start; gap: 12px; }
    .contact-section { padding: 24px; }
    .two-col { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
    .footer-inner { grid-template-columns: 1fr; }
    .hero h1 { font-size: 30px; }
    .cookie-banner { bottom: 16px; width: calc(100% - 32px); }
}