/* ==============================================================
   ACREDITACOMPETENCIAS — SISTEMA DE DISEÑO
   Sobrio, minimalista, profesional. Sin gradientes ni tarjetas
   redondeadas genéricas: divisores finos, tipografía como jerarquía.
   ============================================================== */

:root {
    /* Color: tinta profunda + verde credencial + papel cálido neutro.
       Deliberadamente distinto del cliché "crema + terracota". */
    --ink: #182333;
    --ink-soft: #3A4657;
    --muted: #6B7280;
    --paper: #F7F6F3;
    --surface: #FFFFFF;
    --border: #E2E0D8;
    --border-strong: #C9C6BA;
    --accent: #0F6E56;
    --accent-dark: #084034;
    --accent-soft: #E7F2EE;
    --danger: #A3311B;
    --danger-soft: #F8EAE6;

    --serif: 'Source Serif 4', 'Georgia', serif;
    --sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

    --radius: 3px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    margin: 0;
    background: var(--paper);
    color: var(--ink);
    font-family: var(--sans);
    font-size: 16px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3 {
    font-family: var(--serif);
    font-weight: 600;
    line-height: 1.2;
    margin: 0 0 0.5em;
    color: var(--ink);
}

h1 { font-size: clamp(2rem, 4vw, 3rem); letter-spacing: -0.01em; }
h2 { font-size: 1.6rem; }
h3 { font-size: 1.15rem; }

p { margin: 0 0 1em; color: var(--ink-soft); max-width: 65ch; }

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

.container {
    max-width: 1040px;
    margin: 0 auto;
    padding: 0 24px;
}

.container-narrow {
    max-width: 560px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ---------- Navegación ---------- */
.site-header {
    border-bottom: 1px solid var(--border);
    background: var(--surface);
}

.site-header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.logo {
    font-family: var(--serif);
    font-weight: 600;
    font-size: 1.25rem;
    color: var(--ink);
}

.logo:hover { text-decoration: none; }

.nav-links {
    display: flex;
    align-items: center;
    gap: 28px;
    font-size: 0.95rem;
}

.nav-links a:not(.btn) { color: var(--ink-soft); }
.nav-links a:not(.btn):hover { color: var(--ink); text-decoration: none; }

/* ---------- Botones ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 11px 22px;
    font-family: var(--sans);
    font-size: 0.95rem;
    font-weight: 500;
    border-radius: var(--radius);
    border: 1px solid transparent;
    cursor: pointer;
    transition: background-color 0.15s ease, border-color 0.15s ease;
}

.btn:hover { text-decoration: none; }

.btn-primary {
    background: var(--ink);
    color: var(--surface);
}
.btn-primary:hover { background: var(--accent-dark); }

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

.btn-block { width: 100%; }

/* ---------- Formularios ---------- */
.field { margin-bottom: 18px; }

.field label {
    display: block;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--ink-soft);
    margin-bottom: 6px;
}

.field input:not([type="radio"]):not([type="checkbox"]), .field select {
    width: 100%;
    padding: 10px 12px;
    font-family: var(--sans);
    font-size: 1rem;
    color: var(--ink);
    background: var(--surface);
    border: 1px solid var(--border-strong);
    border-radius: var(--radius);
}

.field input[type="radio"], .field input[type="checkbox"] {
    width: 16px;
    height: 16px;
    flex: 0 0 auto;
}

.field input:focus, .field select:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-soft);
}

/* ---------- Superficies ---------- */
.panel {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px;
}

.alert {
    padding: 14px 16px;
    border-radius: var(--radius);
    font-size: 0.9rem;
    margin-bottom: 20px;
}
.alert-error { background: var(--danger-soft); color: var(--danger); }
.alert-success { background: var(--accent-soft); color: var(--accent-dark); }

/* ---------- Listado de catálogo (divisores, no tarjetas) ---------- */
.catalog-list { border-top: 1px solid var(--border); }

.catalog-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    padding: 24px 0;
    border-bottom: 1px solid var(--border);
}

.catalog-row-main { flex: 1; }

.catalog-marco {
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--accent-dark);
    font-weight: 600;
    margin-bottom: 4px;
}

.catalog-row h3 { margin-bottom: 4px; }
.catalog-row p { margin: 0; font-size: 0.92rem; }

.catalog-meta {
    text-align: right;
    white-space: nowrap;
    font-size: 0.9rem;
    color: var(--muted);
}

/* ---------- Hero ---------- */
.hero { padding: 96px 0 72px; }
.hero p.lead {
    font-size: 1.2rem;
    color: var(--ink-soft);
    max-width: 50ch;
}

/* ---------- Examen ---------- */
.exam-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 0;
    border-bottom: 1px solid var(--border);
    margin-bottom: 32px;
}

.exam-timer {
    font-variant-numeric: tabular-nums;
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--ink);
}

.exam-timer.exam-timer-warning { color: var(--danger); }

.exam-progress {
    font-size: 0.9rem;
    color: var(--muted);
}

.option-row {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 16px 18px;
    border: 1px solid var(--border-strong);
    border-radius: var(--radius);
    margin-bottom: 12px;
    cursor: pointer;
    transition: border-color 0.15s ease, background-color 0.15s ease;
}

.option-row:hover { border-color: var(--ink); }
.option-row.selected { border-color: var(--accent); background: var(--accent-soft); }

.option-row input { accent-color: var(--accent); }

/* ---------- Tabla de diplomas (dashboard) ---------- */
.diploma-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 0;
    border-bottom: 1px solid var(--border);
}

.badge {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 500;
    padding: 3px 10px;
    border-radius: 999px;
}
.badge-pagado { background: var(--accent-soft); color: var(--accent-dark); }
.badge-pendiente { background: #FBF3DC; color: #7A5A0A; }

/* ---------- Pie ---------- */
.site-footer {
    border-top: 1px solid var(--border);
    padding: 32px 0;
    margin-top: 80px;
    font-size: 0.85rem;
    color: var(--muted);
}

.site-footer .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
}

@media (max-width: 640px) {
    .catalog-row { flex-direction: column; align-items: flex-start; }
    .catalog-meta { text-align: left; }
    .nav-links { gap: 16px; font-size: 0.88rem; }
}