/* shingles.page — Evidence-anchored health information */
/* Uses design tokens from tokens.css — include tokens.css first */

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

body {
    font-family: var(--font-body);
    font-size: 17px;
    line-height: 1.7;
    color: var(--color-text);
    background: var(--color-bg);
}

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

/* Header */
.site-header {
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-line);
    padding: 1rem 1.5rem;
    position: sticky; top: 0; z-index: 100;
}
.header-inner {
    max-width: 820px; margin: 0 auto;
    display: flex; align-items: center; justify-content: space-between;
    flex-wrap: wrap; gap: 0.5rem;
}
.site-logo {
    font-size: 1.5rem; font-weight: 700; color: var(--color-brand);
    letter-spacing: -0.02em;
}
.site-logo span { color: var(--color-accent); }

/* Nav */
.site-nav { display: flex; gap: 0.25rem; flex-wrap: wrap; }
.site-nav a {
    padding: 0.35rem 0.75rem; border-radius: var(--radius-sm);
    font-size: 0.88rem; font-weight: 500; color: var(--color-text-muted);
    transition: background 0.15s;
}
.site-nav a:hover, .site-nav a.active { background: var(--color-info-bg); color: var(--color-brand); text-decoration: none; }

/* Main */
.container { max-width: 820px; margin: 0 auto; padding: 2rem 1.5rem; }

/* Hero */
.hero {
    background: var(--color-brand);
    color: var(--white); padding: 3rem 2rem; text-align: center; border-radius: var(--radius-sm);
    margin-bottom: 2rem;
}
.hero h1 { font-size: 2.2rem; margin-bottom: 0.75rem; letter-spacing: -0.03em; }
.hero p { font-size: 1.1rem; opacity: 0.9; max-width: 600px; margin: 0 auto; line-height: 1.6; }

/* Cards */
.card-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 1.25rem; margin: 2rem 0; }
.card {
    background: var(--color-surface); border: 1px solid var(--color-line);
    border-radius: var(--radius-sm); padding: 1.5rem;
    transition: box-shadow 0.2s;
}
.card:hover { box-shadow: 0 2px 12px rgba(15,51,48,0.08); }
.card h3 { font-size: 1.1rem; margin-bottom: 0.5rem; color: var(--color-brand); }
.card p { font-size: 0.93rem; color: var(--color-text-muted); line-height: 1.5; }
.card.red-flag { border-left: 4px solid var(--color-urgent); }
.card.red-flag h3 { color: var(--color-urgent); }

/* Disclaimer */
.disclaimer {
    background: var(--color-info-bg); border-left: 4px solid var(--color-brand);
    padding: 1rem 1.25rem; border-radius: var(--radius-sm); margin: 2rem 0;
    font-size: 0.9rem; color: var(--color-text-muted);
}
.disclaimer.urgent, .callout--urgent {
    background: var(--color-urgent-bg); border-left-color: var(--color-urgent);
    color: var(--petrol-900);
}
.note--disclaimer { background: var(--color-info-bg); border-radius: var(--radius-md); }

/* Facts */
.fact-list { list-style: none; margin: 2rem 0; }
.fact-list li {
    background: var(--color-surface); border: 1px solid var(--color-line);
    border-radius: var(--radius-sm); padding: 1.25rem 1.5rem; margin-bottom: 0.75rem;
}
.fact-list li .fact-label { font-weight: 600; color: var(--color-brand); font-size: 0.82rem; text-transform: uppercase; letter-spacing: 0.05em; }
.fact-list li .fact-strength {
    display: inline-block; font-size: 0.75rem; padding: 0.15rem 0.5rem;
    border-radius: 4px; margin-left: 0.5rem; font-weight: 500;
}
.strength-strong { background: #d4edda; color: #155724; }
.strength-moderate { background: #fff3cd; color: #856404; }
.strength-limited { background: #f8d7da; color: #721c24; }

/* Content page */
.content-page h1 { font-size: 1.9rem; margin-bottom: 0.5rem; }
.content-page .subtitle { font-size: 1.1rem; color: var(--color-text-muted); margin-bottom: 2rem; }
.content-page h2 { font-size: 1.3rem; margin: 2rem 0 0.75rem; color: var(--color-brand); }
.content-page p { margin-bottom: 1rem; }
.content-page ul, .content-page ol { margin: 0.5rem 0 1rem 1.5rem; }
.content-page li { margin-bottom: 0.4rem; }

/* Sources */
.source-list { font-size: 0.85rem; color: var(--color-text-muted); margin-top: 3rem; padding-top: 1.5rem; border-top: 1px solid var(--color-line); }
.source-list h3 { font-size: 1rem; color: var(--color-text); margin-bottom: 0.5rem; }
.source-list li { margin-bottom: 0.3rem; }

/* Footer */
.site-footer {
    background: var(--color-surface); border-top: 1px solid var(--color-line);
    padding: 2rem 1.5rem; text-align: center; font-size: 0.85rem; color: var(--color-text-muted);
    margin-top: 3rem;
}
.site-footer a { color: var(--color-brand); }
.site-footer .footer-links { display: flex; justify-content: center; gap: 1.5rem; flex-wrap: wrap; margin-bottom: 1rem; }

/* Buttons */
.btn {
    display: inline-block; padding: 0.6rem 1.4rem; border-radius: var(--radius-sm);
    font-weight: 600; font-size: 0.95rem; transition: all 0.15s;
    cursor: pointer; border: none;
}
.btn-primary { background: var(--color-brand); color: var(--white); }
.btn-primary:hover { background: var(--color-brand-ink); text-decoration: none; }

/* Breadcrumb */
.breadcrumb { font-size: 0.85rem; color: var(--color-text-muted); margin-bottom: 1.5rem; }
.breadcrumb a { color: var(--color-text-muted); }
.breadcrumb span { color: var(--color-text); }

/* Responsive */
@media (max-width: 600px) {
    .site-header { padding: 0.75rem 1rem; }
    .header-inner { flex-direction: column; align-items: flex-start; }
    .hero { padding: 2rem 1rem; }
    .hero h1 { font-size: 1.6rem; }
    .container { padding: 1.25rem 1rem; }
    .card-grid { grid-template-columns: 1fr; }
}

/* Auth & Forum */
.header-right { display:flex; align-items:center; gap:1rem; }
#login-btn { padding:0.4rem 1rem; border-radius:var(--radius-sm); font-weight:600; font-size:0.9rem; color:var(--color-brand); background:var(--color-info-bg); border:none; cursor:pointer; display:flex; align-items:center; gap:0.5rem; text-decoration:none; }
#login-btn:hover { background:var(--color-surface-sunken); text-decoration:none; }
.avatar { width:32px; height:32px; border-radius:50%; background:var(--color-brand); color:var(--white); display:flex; align-items:center; justify-content:center; font-size:0.8rem; font-weight:700; }

.modal-overlay { position:fixed; inset:0; background:rgba(15,51,48,0.4); z-index:1000; display:flex; align-items:center; justify-content:center; }
.modal { background:var(--color-surface); padding:2rem; border-radius:12px; width:100%; max-width:420px; position:relative; box-shadow:0 8px 32px rgba(15,51,48,0.15); }
.modal-close { position:absolute; top:0.75rem; right:1rem; background:none; border:none; font-size:1.5rem; cursor:pointer; color:var(--color-text-muted); }
.modal h2 { margin-bottom:1.25rem; }
.modal label { display:block; margin-bottom:0.75rem; font-size:0.9rem; color:var(--color-text-muted); }
.modal input, .modal textarea, .modal select { width:100%; padding:0.5rem 0.75rem; border:1px solid var(--color-line); border-radius:6px; font-family:inherit; font-size:0.95rem; margin-top:0.2rem; }
.modal .btn { width:100%; margin-top:1rem; }
.form-error { color:var(--color-urgent); font-size:0.85rem; margin-top:0.5rem; padding:0.4rem; background:var(--color-urgent-bg); border-radius:4px; }

/* Accent rule */
.accent-rule { width: 132px; height: 6px; background: var(--color-accent); border: 0; }