@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;
    --rounded-xs: 4px;
    --rounded-sm: 6px;
    --rounded-md: 8px;
    --rounded-lg: 12px;
    --rounded-xl: 16px;
    --rounded-pill: 9999px;
    --section: 80px;
}

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

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

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

a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

h1, h2, h3, h4 {
    color: var(--ink);
    font-weight: 400;
    letter-spacing: -0.02em;
    line-height: 1.2;
}
h1 { font-size: clamp(32px, 5vw, 72px); letter-spacing: -0.03em; line-height: 1.1; }
h2 { font-size: clamp(24px, 3vw, 36px); letter-spacing: -0.02em; }
h3 { font-size: clamp(20px, 2.5vw, 26px); letter-spacing: -0.0125em; }
h4 { font-size: 22px; font-weight: 400; }

p { color: var(--body); line-height: 1.6; margin-bottom: 1rem; }
p:last-child { margin-bottom: 0; }

ul, ol { padding-left: 1.5rem; color: var(--body); line-height: 1.6; }
li { margin-bottom: 0.4rem; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.container--narrow { max-width: 800px; }

.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: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}
.nav-logo {
    text-decoration: none;
    display: flex;
    flex-direction: column;
    line-height: 1.2;
    flex-shrink: 0;
}
.logo-text {
    font-size: 16px;
    font-weight: 600;
    color: var(--ink);
    letter-spacing: -0.01em;
}
.logo-sub {
    font-size: 11px;
    color: var(--muted);
    letter-spacing: 0.05em;
    text-transform: uppercase;
    font-weight: 600;
}
.nav-menu {
    display: flex;
    list-style: none;
    padding: 0;
    gap: 8px;
    flex-wrap: wrap;
}
.nav-link {
    font-size: 14px;
    font-weight: 500;
    color: var(--body);
    padding: 6px 12px;
    border-radius: var(--rounded-sm);
    text-decoration: none;
    transition: color 0.15s, background 0.15s;
}
.nav-link:hover { color: var(--ink); background: var(--hairline-soft); text-decoration: none; }
.nav-link--active { color: var(--ink); font-weight: 600; }
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}
.nav-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--ink);
    border-radius: 2px;
    transition: transform 0.2s;
}

.hero {
    padding: var(--section) 0 60px;
    background: var(--canvas);
    border-bottom: 1px solid var(--hairline);
}
.hero__label {
    display: inline-block;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.88px;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 20px;
}
.hero__title { margin-bottom: 20px; }
.hero__lead {
    font-size: 18px;
    color: var(--body);
    max-width: 580px;
    margin-bottom: 0;
}

.section { padding: var(--section) 0; }
.section--gray { background: var(--canvas-soft); border-top: 1px solid var(--hairline); border-bottom: 1px solid var(--hairline); }

.section-label {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.88px;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 12px;
}
.section-title { margin-bottom: 12px; }
.section-lead { font-size: 18px; color: var(--body); max-width: 600px; margin-bottom: 40px; }

.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }

.card {
    background: var(--surface-card);
    border: 1px solid var(--hairline);
    border-radius: var(--rounded-lg);
    padding: 24px;
}
.card__label {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.88px;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 12px;
}
.card__title {
    font-size: 18px;
    font-weight: 600;
    color: var(--ink);
    margin-bottom: 10px;
    line-height: 1.3;
}
.card__title a { color: inherit; text-decoration: none; }
.card__title a:hover { color: var(--primary); text-decoration: none; }
.card__text { font-size: 14px; color: var(--body); margin-bottom: 0; }

.article-card {
    background: var(--surface-card);
    border: 1px solid var(--hairline);
    border-radius: var(--rounded-lg);
    overflow: hidden;
}
.article-card__img { width: 100%; height: 200px; object-fit: cover; }
.article-card__body { padding: 24px; }
.article-card__label {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.88px;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 8px;
    display: block;
}
.article-card__title {
    font-size: 20px;
    font-weight: 400;
    color: var(--ink);
    margin-bottom: 10px;
    letter-spacing: -0.01em;
}
.article-card__title a { color: inherit; text-decoration: none; }
.article-card__title a:hover { color: var(--primary); }
.article-card__text { font-size: 14px; color: var(--body); }

.btn {
    display: inline-block;
    font-size: 14px;
    font-weight: 500;
    line-height: 1;
    padding: 10px 18px;
    height: 40px;
    border-radius: var(--rounded-md);
    border: none;
    cursor: pointer;
    text-decoration: none;
    transition: background 0.15s, color 0.15s;
    white-space: nowrap;
    vertical-align: middle;
}
.btn--primary { background: var(--primary); color: var(--on-primary); }
.btn--primary:hover { background: var(--primary-active); text-decoration: none; color: var(--on-primary); }
.btn--secondary { background: var(--surface-card); color: var(--ink); border: 1px solid var(--hairline-strong); }
.btn--secondary:hover { background: var(--canvas-soft); text-decoration: none; }

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

.article-header { padding: var(--section) 0 40px; border-bottom: 1px solid var(--hairline); }
.article-header__meta {
    font-size: 13px;
    color: var(--muted);
    margin-bottom: 16px;
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}
.article-header__title { margin-bottom: 20px; }
.article-header__lead { font-size: 20px; color: var(--body); max-width: 700px; }

.article-body { padding: 60px 0; }
.article-body h2 { margin-top: 40px; margin-bottom: 16px; font-size: 26px; }
.article-body h3 { margin-top: 32px; margin-bottom: 12px; font-size: 20px; }
.article-body p { margin-bottom: 1.2rem; font-size: 16px; }
.article-body ul, .article-body ol { margin-bottom: 1.2rem; }
.article-body li { margin-bottom: 0.5rem; font-size: 16px; color: var(--body); }
.article-body img { border-radius: var(--rounded-lg); margin: 32px 0; border: 1px solid var(--hairline); }
.article-body figcaption { font-size: 13px; color: var(--muted); margin-top: 8px; }
.article-body figure { margin: 32px 0; }

.data-box {
    background: var(--surface-card);
    border: 1px solid var(--hairline);
    border-radius: var(--rounded-lg);
    padding: 24px;
    margin: 32px 0;
}
.data-box__title { font-size: 14px; font-weight: 600; color: var(--ink); margin-bottom: 12px; text-transform: uppercase; letter-spacing: 0.05em; }

.ref-list { list-style: none; padding: 0; }
.ref-list li { padding: 10px 0; border-bottom: 1px solid var(--hairline-soft); font-size: 14px; color: var(--body); }
.ref-list li:last-child { border-bottom: none; }
.ref-list a { color: var(--primary); word-break: break-word; }

.contact-form { max-width: 560px; }
.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 {
    display: block;
    width: 100%;
    background: var(--surface-card);
    border: 1px solid var(--hairline-strong);
    border-radius: var(--rounded-md);
    padding: 12px 16px;
    height: 44px;
    font-size: 16px;
    font-family: inherit;
    color: var(--ink);
    transition: border-color 0.15s;
}
.form-group textarea { height: auto; min-height: 120px; resize: vertical; }
.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
}
.form-message { display: none; font-size: 14px; margin-top: 12px; padding: 12px 16px; border-radius: var(--rounded-md); }
.form-message--success { background: #d4f0e6; color: #1f5d43; border: 1px solid #a8dcc6; }
.form-spinner { display: none; font-size: 14px; color: var(--muted); margin-top: 8px; }

.page-hero { padding: var(--section) 0 48px; border-bottom: 1px solid var(--hairline); }
.page-hero__title { margin-bottom: 16px; }
.page-hero__lead { font-size: 18px; color: var(--body); max-width: 600px; }

.page-body { padding: 60px 0; }
.page-body h2 { margin-top: 40px; margin-bottom: 14px; font-size: 24px; }
.page-body h3 { margin-top: 28px; margin-bottom: 10px; font-size: 20px; }
.page-body p { margin-bottom: 1.1rem; font-size: 16px; }
.page-body ul, .page-body ol { margin-bottom: 1.1rem; }
.page-body li { font-size: 16px; color: var(--body); margin-bottom: 0.4rem; }

.site-footer {
    background: var(--canvas);
    border-top: 1px solid var(--hairline);
    padding: 64px 24px 48px;
}
.footer-inner {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr 1fr;
    gap: 40px;
}
.footer-logo { font-size: 16px; font-weight: 600; color: var(--ink); display: block; margin-bottom: 8px; }
.footer-tagline { font-size: 14px; color: var(--body); line-height: 1.5; }
.footer-col-title { font-size: 11px; font-weight: 600; letter-spacing: 0.88px; text-transform: uppercase; color: var(--muted); margin-bottom: 12px; }
.footer-col ul { list-style: none; padding: 0; }
.footer-col ul li { margin-bottom: 8px; }
.footer-col ul a { font-size: 14px; color: var(--body); text-decoration: none; }
.footer-col ul a:hover { color: var(--ink); }
.footer-disclaimer { font-size: 12px; color: var(--muted-soft); margin-top: 12px; line-height: 1.4; }
.footer-bottom {
    max-width: 1200px;
    margin: 32px auto 0;
    padding-top: 24px;
    border-top: 1px solid var(--hairline);
    font-size: 13px;
    color: var(--muted);
}

.cookie-banner {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--ink);
    color: var(--canvas);
    z-index: 200;
    border-top: 1px solid rgba(255,255,255,0.1);
}
.cookie-banner__inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 16px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    flex-wrap: wrap;
}
.cookie-banner p { color: var(--canvas); font-size: 14px; margin: 0; }
.cookie-banner a { color: var(--canvas); text-decoration: underline; }
.cookie-banner__actions { display: flex; gap: 10px; flex-shrink: 0; }

.breadcrumb {
    font-size: 13px;
    color: var(--muted);
    margin-bottom: 16px;
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
    align-items: center;
}
.breadcrumb a { color: var(--muted); text-decoration: none; }
.breadcrumb a:hover { color: var(--ink); }
.breadcrumb__sep { color: var(--muted-soft); }

.tag {
    display: inline-block;
    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(--rounded-pill);
}

.two-col-layout { display: grid; grid-template-columns: 1fr 340px; gap: 48px; align-items: start; }
.sidebar-card {
    background: var(--surface-card);
    border: 1px solid var(--hairline);
    border-radius: var(--rounded-lg);
    padding: 24px;
    margin-bottom: 24px;
}
.sidebar-card__title { font-size: 14px; font-weight: 600; color: var(--ink); margin-bottom: 12px; text-transform: uppercase; letter-spacing: 0.05em; }
.sidebar-card ul { list-style: none; padding: 0; }
.sidebar-card ul li { padding: 6px 0; border-bottom: 1px solid var(--hairline-soft); font-size: 14px; }
.sidebar-card ul li:last-child { border-bottom: none; }
.sidebar-card ul a { color: var(--body); text-decoration: none; }
.sidebar-card ul a:hover { color: var(--ink); }

@media (max-width: 1024px) {
    .grid-3 { grid-template-columns: repeat(2, 1fr); }
    .footer-inner { grid-template-columns: 1fr 1fr; }
    .two-col-layout { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
    :root { --section: 48px; }
    .nav-toggle { 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.is-open { display: flex; }
    .grid-3, .grid-2 { grid-template-columns: 1fr; }
    .footer-inner { grid-template-columns: 1fr 1fr; gap: 24px; }
}
@media (max-width: 480px) {
    .footer-inner { grid-template-columns: 1fr; }
    .cookie-banner__inner { flex-direction: column; align-items: flex-start; }
}