:root {
    --color-text:    #111827;
    --color-muted:   #6b7280;
    --color-subtle:  #9ca3af;
    --color-border:  #e5e7eb;
    --color-bg:      #f9fafb;
    --color-card:    #ffffff;
    --color-primary: #2563eb;
    --font:          'Inter', system-ui, -apple-system, sans-serif;
}

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

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

body {
    font-family: var(--font);
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    margin: 0;
}

/* ── Header ── */
.site-header {
    background: #fff;
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 100;
}

.site-brand {
    font-size: 1rem;
    font-weight: 700;
    color: var(--color-text);
    text-decoration: none;
    letter-spacing: -0.02em;
}

.site-brand:hover { color: var(--color-primary); }

.nav-link-clean {
    font-size: 0.875rem;
    color: var(--color-muted);
    text-decoration: none;
}

.nav-link-clean:hover { color: var(--color-text); }

.btn-ghost {
    background: none;
    border: none;
    padding: 0;
    font-size: 0.875rem;
    color: var(--color-muted);
    cursor: pointer;
}

.btn-ghost:hover { color: var(--color-text); }

/* ── Main ── */
.site-main { flex: 1; }

/* ── Footer ── */
.site-footer {
    padding: 2rem 0;
    border-top: 1px solid var(--color-border);
    font-size: 0.8125rem;
    color: var(--color-muted);
}

.site-footer a {
    color: var(--color-muted);
    text-decoration: none;
}

.site-footer a:hover {
    color: var(--color-text);
    text-decoration: underline;
}

/* ── Focus ── */
.btn:focus, .form-control:focus, .form-check-input:focus {
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
    border-color: var(--color-primary);
    outline: none;
}

/* ── Hero (Index) ── */
.hero { padding: 4rem 0 2rem; }

.hero-title {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 700;
    letter-spacing: -0.03em;
    line-height: 1.2;
    color: var(--color-text);
}

.hero-lead {
    font-size: 1rem;
    color: var(--color-muted);
    max-width: 480px;
}

/* ── Search card ── */
.search-card {
    background: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    padding: 2rem;
}

/* ── How it works ── */
.how-it-works {
    background: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    padding: 1.5rem 2rem;
}

.how-it-works h2 {
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-subtle);
    margin-bottom: 1rem;
}

.how-it-works ol {
    padding-left: 1.25rem;
    margin: 0;
    color: var(--color-muted);
    font-size: 0.9rem;
}

.how-it-works li { margin-bottom: 0.4rem; }

/* ── Consulta page ── */
.result-header { padding: 2rem 0 1rem; }

.result-curp {
    font-size: 1.25rem;
    font-weight: 600;
    letter-spacing: -0.02em;
}

.progress-wrap { margin-bottom: 1.5rem; }

.progress-label {
    font-size: 0.8125rem;
    color: var(--color-muted);
}

/* Table clean */
#resultsTable {
    font-size: 0.875rem;
}

#resultsTable thead th {
    font-weight: 600;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-muted);
    background: var(--color-bg);
    border-bottom: 2px solid var(--color-border);
}


/* ── Trust strip (Index) ── */
.trust-strip {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1.5rem;
}

.trust-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
}

.trust-num {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--color-text);
    letter-spacing: -0.02em;
}

.trust-label {
    font-size: 0.75rem;
    color: var(--color-muted);
    text-align: center;
}

.trust-divider {
    width: 1px;
    height: 2rem;
    background: var(--color-border);
}

/* ── Result summary card ── */
.result-summary {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.25rem 1.5rem;
    border-radius: 10px;
    border: 1.5px solid var(--color-border);
    background: var(--color-card);
}

.result-summary--ok {
    border-color: #86efac;
    background: #f0fdf4;
}

.result-summary--warn {
    border-color: #fca5a5;
    background: #fff7f7;
}

.result-summary-icon {
    font-size: 2rem;
    line-height: 1;
    flex-shrink: 0;
}

.result-summary-main {
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--color-text);
    line-height: 1.3;
}

.result-summary-sub {
    font-size: 0.8125rem;
    color: var(--color-muted);
    margin-top: 2px;
}

/* ── Altán expandable ── */
.altan-toggle {
    color: var(--color-muted);
    font-size: 0.65rem;
    line-height: 1;
    vertical-align: middle;
    text-decoration: none;
}
.altan-toggle:hover { color: var(--color-text); }

.altan-op-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    padding: 4px 0;
}

.altan-op {
    font-size: 0.78rem;
    color: var(--color-muted);
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 4px;
    padding: 2px 8px;
    white-space: nowrap;
}

.altan-op--active {
    color: #166534;
    background: #f0fdf4;
    border-color: #86efac;
    font-weight: 500;
}

/* ── Utility ── */
.text-quiet { color: var(--color-muted); }