:root {
    --canvas: #f7f7f4;
    --canvas-soft: #fafaf7;
    --surface-card: #ffffff;
    --surface-strong: #e6e5e0;
    --primary: #f54e00;
    --primary-active: #d04200;
    --ink: #26251e;
    --body-color: #5a5852;
    --muted: #807d72;
    --muted-soft: #a09c92;
    --hairline: #e6e5e0;
    --hairline-soft: #efeee8;
    --hairline-strong: #cfcdc4;
    --on-primary: #ffffff;
    --success: #1f8a65;
    --error: #cf2d56;
}

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

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

body {
    background-color: var(--canvas);
    color: var(--body-color);
    font-family: 'Inter', system-ui, 'Helvetica Neue', Helvetica, Arial, sans-serif;
    font-size: 16px;
    font-weight: 400;
    line-height: 1.5;
}

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;
}

/* TYPOGRAPHY */
h1, h2, h3, h4 {
    font-weight: 400;
    color: var(--ink);
    letter-spacing: -0.02em;
}
h1 { font-size: 48px; line-height: 1.1; letter-spacing: -0.045em; }
h2 { font-size: 36px; line-height: 1.2; letter-spacing: -0.02em; }
h3 { font-size: 26px; line-height: 1.25; letter-spacing: -0.0125em; }
h4 { font-size: 22px; line-height: 1.3; letter-spacing: -0.005em; }

p { margin-bottom: 16px; }
p:last-child { margin-bottom: 0; }

.text-muted { color: var(--muted); }
.text-ink { color: var(--ink); }

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

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

.nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

.nav-logo {
    font-size: 20px;
    font-weight: 600;
    color: var(--ink);
    letter-spacing: -0.5px;
    display: flex;
    align-items: center;
    gap: 8px;
}

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

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
    list-style: none;
}

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

.nav-hamburger {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    flex-direction: column;
    gap: 5px;
}
.nav-hamburger span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--ink);
    transition: all 0.2s;
}

.nav-mobile {
    display: none;
    flex-direction: column;
    background: var(--canvas);
    border-bottom: 1px solid var(--hairline);
    padding: 16px 24px;
}
.nav-mobile.open { display: flex; }
.nav-mobile a {
    font-size: 15px;
    font-weight: 500;
    color: var(--ink);
    padding: 10px 0;
    border-bottom: 1px solid var(--hairline-soft);
}

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

.hero-band h1 {
    font-size: 56px;
    letter-spacing: -0.045em;
    color: var(--ink);
    max-width: 700px;
    margin-bottom: 20px;
}

.hero-band .hero-sub {
    font-size: 18px;
    color: var(--body-color);
    max-width: 560px;
    margin-bottom: 32px;
    line-height: 1.6;
}

.badge-pill {
    display: inline-block;
    background: var(--surface-strong);
    color: var(--ink);
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.88px;
    text-transform: uppercase;
    border-radius: 9999px;
    padding: 4px 10px;
    margin-bottom: 20px;
}

/* BUTTONS */
.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: 8px;
    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: 8px;
    border: 1px solid var(--hairline-strong);
    cursor: pointer;
    transition: border-color 0.15s;
    text-decoration: none;
}
.btn-secondary:hover { border-color: var(--muted); color: var(--ink); }

/* SECTIONS */
.section { padding: 80px 0; }
.section-alt { background: var(--canvas-soft); }

.section-head {
    margin-bottom: 48px;
}
.section-head h2 { margin-bottom: 12px; }
.section-head p { color: var(--body-color); font-size: 16px; max-width: 560px; }

/* CARDS */
.card-grid {
    display: grid;
    gap: 20px;
}
.card-grid-3 { grid-template-columns: repeat(3, 1fr); }
.card-grid-2 { grid-template-columns: repeat(2, 1fr); }

.feature-card {
    background: var(--surface-card);
    border: 1px solid var(--hairline);
    border-radius: 12px;
    padding: 24px;
}
.feature-card h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--ink);
    margin-bottom: 8px;
    letter-spacing: 0;
}
.feature-card p { color: var(--body-color); font-size: 15px; }

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

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

.article-card-body {
    padding: 20px 24px 24px;
}
.article-card-body .cat {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.88px;
    text-transform: uppercase;
    color: var(--primary);
    margin-bottom: 8px;
    display: block;
}
.article-card-body h3 {
    font-size: 20px;
    color: var(--ink);
    margin-bottom: 8px;
    font-weight: 400;
    letter-spacing: -0.01em;
}
.article-card-body p { font-size: 14px; color: var(--body-color); margin-bottom: 16px; }
.article-card-body a {
    font-size: 14px;
    font-weight: 500;
    color: var(--ink);
    text-decoration: underline;
    text-underline-offset: 3px;
}
.article-card-body a:hover { color: var(--primary); }

/* ARTICLE PAGE */
.article-header {
    padding: 64px 0 48px;
    border-bottom: 1px solid var(--hairline);
}
.article-header .cat {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.88px;
    text-transform: uppercase;
    color: var(--primary);
    margin-bottom: 16px;
    display: block;
}
.article-header h1 {
    font-size: 44px;
    color: var(--ink);
    max-width: 760px;
    margin-bottom: 16px;
}
.article-header .meta {
    font-size: 13px;
    color: var(--muted);
}

.article-body {
    padding: 48px 0 80px;
    max-width: 760px;
}
.article-body h2 { font-size: 28px; margin: 40px 0 16px; }
.article-body h3 { font-size: 22px; margin: 32px 0 12px; }
.article-body p { font-size: 16px; line-height: 1.7; margin-bottom: 20px; color: var(--body-color); }
.article-body ul, .article-body ol { margin: 0 0 20px 24px; color: var(--body-color); }
.article-body li { margin-bottom: 8px; line-height: 1.6; }
.article-body figure { margin: 32px 0; }
.article-body figure img { border-radius: 8px; width: 100%; }
.article-body figcaption {
    font-size: 13px;
    color: var(--muted);
    margin-top: 8px;
    line-height: 1.4;
}
.article-body .info-box {
    background: var(--surface-card);
    border: 1px solid var(--hairline);
    border-left: 3px solid var(--primary);
    border-radius: 0 8px 8px 0;
    padding: 20px 24px;
    margin: 28px 0;
}
.article-body .info-box p { font-size: 15px; color: var(--ink); margin-bottom: 0; }

.article-two-col {
    display: grid;
    grid-template-columns: 1fr 340px;
    gap: 64px;
    align-items: start;
}

.article-sidebar {
    padding-top: 48px;
}
.sidebar-card {
    background: var(--surface-card);
    border: 1px solid var(--hairline);
    border-radius: 12px;
    padding: 24px;
    margin-bottom: 20px;
}
.sidebar-card h4 {
    font-size: 14px;
    font-weight: 600;
    color: var(--ink);
    letter-spacing: 0;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--hairline);
}
.sidebar-card ul { list-style: none; }
.sidebar-card ul li {
    padding: 8px 0;
    border-bottom: 1px solid var(--hairline-soft);
    font-size: 14px;
}
.sidebar-card ul li:last-child { border-bottom: none; }
.sidebar-card ul li a { color: var(--body-color); }
.sidebar-card ul li a:hover { color: var(--primary); }

/* INFO TABLE */
.info-table {
    width: 100%;
    border-collapse: collapse;
    margin: 24px 0;
    font-size: 15px;
}
.info-table th {
    background: var(--surface-strong);
    color: var(--ink);
    font-weight: 600;
    text-align: left;
    padding: 10px 16px;
    font-size: 13px;
}
.info-table td {
    padding: 10px 16px;
    border-bottom: 1px solid var(--hairline-soft);
    color: var(--body-color);
}
.info-table tr:last-child td { border-bottom: none; }
.info-table tr:hover td { background: var(--canvas-soft); }

/* FORM */
.contact-form-wrap {
    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);
    color: var(--ink);
    border: 1px solid var(--hairline-strong);
    border-radius: 8px;
    padding: 12px 16px;
    font-size: 15px;
    font-family: inherit;
    transition: border-color 0.15s;
    outline: none;
}
.form-group input:focus,
.form-group textarea:focus { border-color: var(--primary); }
.form-group textarea { height: 120px; resize: vertical; }
.form-message {
    display: none;
    padding: 14px 18px;
    border-radius: 8px;
    font-size: 14px;
    margin-top: 16px;
}
.form-message.success {
    background: #e8f5f0;
    color: var(--success);
    border: 1px solid #b8dfd3;
    display: block;
}

/* COOKIE BANNER */
#cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 9999;
    background: var(--ink);
    color: var(--canvas);
    padding: 16px 24px;
    display: none;
}
.cookie-inner {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    flex-wrap: wrap;
}
.cookie-inner p {
    font-size: 14px;
    color: var(--canvas-soft);
    margin-bottom: 0;
}
.cookie-inner a { color: var(--primary); text-decoration: underline; }
.cookie-btns { display: flex; gap: 10px; flex-shrink: 0; }
.btn-cookie-accept {
    background: var(--primary);
    color: var(--on-primary);
    border: none;
    border-radius: 8px;
    padding: 8px 16px;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
}
.btn-cookie-reject {
    background: transparent;
    color: var(--canvas);
    border: 1px solid rgba(255,255,255,0.3);
    border-radius: 8px;
    padding: 8px 16px;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
}

/* FOOTER */
.site-footer {
    background: var(--canvas);
    border-top: 1px solid var(--hairline);
    padding: 48px 0 32px;
}
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}
.footer-brand p {
    font-size: 14px;
    color: var(--body-color);
    margin-top: 12px;
    line-height: 1.6;
    max-width: 280px;
}
.footer-col h4 {
    font-size: 13px;
    font-weight: 600;
    color: var(--ink);
    letter-spacing: 0;
    margin-bottom: 16px;
}
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 10px; }
.footer-col a { font-size: 14px; color: var(--body-color); }
.footer-col a:hover { color: var(--ink); }
.footer-bottom {
    padding-top: 24px;
    border-top: 1px solid var(--hairline);
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 13px;
    color: var(--muted);
    flex-wrap: wrap;
    gap: 12px;
}
.footer-bottom a { color: var(--muted); }
.footer-bottom a:hover { color: var(--ink); }

/* PAGE HERO (non-home) */
.page-hero {
    padding: 64px 0 48px;
    border-bottom: 1px solid var(--hairline);
}
.page-hero h1 { font-size: 44px; margin-bottom: 12px; }
.page-hero p { font-size: 17px; color: var(--body-color); max-width: 600px; }

/* DISCLAIMER */
.disclaimer-box {
    background: var(--surface-card);
    border: 1px solid var(--hairline);
    border-radius: 8px;
    padding: 16px 20px;
    margin: 24px 0;
    font-size: 14px;
    color: var(--muted);
    line-height: 1.6;
}

/* BREADCRUMB */
.breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--muted);
    margin-bottom: 24px;
}
.breadcrumb a { color: var(--muted); }
.breadcrumb a:hover { color: var(--ink); }
.breadcrumb span { color: var(--muted-soft); }

/* SCHEMA TABLE */
.grade-table { width: 100%; border-collapse: collapse; font-size: 14px; margin: 24px 0; }
.grade-table th { background: var(--ink); color: var(--canvas); padding: 10px 14px; text-align: left; font-weight: 600; font-size: 12px; letter-spacing: 0.5px; }
.grade-table td { padding: 10px 14px; border-bottom: 1px solid var(--hairline-soft); color: var(--body-color); }
.grade-table tr:last-child td { border-bottom: none; }
.grade-table tr:hover td { background: var(--canvas-soft); }

/* RESPONSIVE */
@media (max-width: 1024px) {
    h1 { font-size: 40px; }
    .hero-band h1 { font-size: 44px; }
    .card-grid-3 { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .article-two-col { grid-template-columns: 1fr; }
    .article-sidebar { padding-top: 0; }
}

@media (max-width: 768px) {
    h1 { font-size: 32px; }
    h2 { font-size: 26px; }
    h3 { font-size: 22px; }
    .hero-band { padding: 48px 0; }
    .hero-band h1 { font-size: 36px; }
    .hero-band .hero-sub { font-size: 16px; }
    .section { padding: 48px 0; }
    .nav-links { display: none; }
    .nav-hamburger { display: flex; }
    .card-grid-3 { grid-template-columns: 1fr; }
    .card-grid-2 { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; gap: 28px; }
    .article-header h1 { font-size: 30px; }
    .article-body { padding: 32px 0 48px; }
    .footer-bottom { flex-direction: column; text-align: center; }
}

@media (max-width: 480px) {
    .container { padding: 0 16px; }
    .hero-band h1 { font-size: 28px; }
    .cookie-inner { flex-direction: column; align-items: flex-start; }
}