/* ───────────────────────────────────────────────────────────────────────────
   SAADS · Portal Moderno — sistema de diseño (Indigo / Inter)
   Portado del mockup aprobado (portal_moderno_saads_adi.html).
   ─────────────────────────────────────────────────────────────────────────── */
:root {
    --primary-color: #4f46e5;
    --primary-hover: #4338ca;
    --primary-light: #e0e7ff;
    --bg-body: #f3f4f6;
    --bg-surface: #ffffff;
    --text-main: #1f2937;
    --text-muted: #6b7280;
    --border-color: #e5e7eb;
    --radius-md: 12px;
    --radius-lg: 16px;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-hover: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

body {
    background-color: var(--bg-body);
    font-family: 'Inter', sans-serif;
    color: var(--text-main);
}

h1, h2, h3, h4, h5, h6 { font-weight: 600; letter-spacing: -0.025em; }
.text-muted { color: var(--text-muted) !important; }
.fw-medium { font-weight: 500; }
.min-vh-75 { min-height: 75vh; }

/* Botones */
.btn { border-radius: 8px; font-weight: 500; padding: 0.5rem 1rem; transition: all 0.2s; }
.btn-primary { background-color: var(--primary-color); border-color: var(--primary-color); }
.btn-primary:hover { background-color: var(--primary-hover); border-color: var(--primary-hover); transform: translateY(-1px); }
.btn-outline-primary { color: var(--primary-color); border-color: var(--primary-color); }
.btn-outline-primary:hover { background-color: var(--primary-color); border-color: var(--primary-color); }
.btn-light { background-color: #f9fafb; border-color: var(--border-color); color: var(--text-main); }
.btn-light:hover { background-color: #f3f4f6; }
.text-primary { color: var(--primary-color) !important; }

/* Inputs */
.form-control, .form-select {
    border-radius: 8px; border-color: var(--border-color);
    padding: 0.6rem 1rem; box-shadow: var(--shadow-sm);
}
.form-control:focus, .form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.25rem var(--primary-light);
}

/* Layout */
.app-shell { display: flex; }
.sidebar {
    width: 280px; --bs-offcanvas-width: 280px; background-color: var(--bg-surface);
    border-right: 1px solid var(--border-color);
    display: flex; flex-direction: column;
}
/* Escritorio (lg+): sidebar fijo y pegajoso. En <lg se comporta como offcanvas (Bootstrap):
   NO fijar z-index en el base, o pisaría el z-index del offcanvas (1045) y el backdrop (1040)
   quedaría encima del menú bloqueando los clics. El z-index solo aplica en escritorio. */
@media (min-width: 992px) {
    .sidebar { height: 100vh; position: sticky; top: 0; z-index: 20; }
}
.sidebar-brand {
    display: flex; align-items: center; padding: 1.5rem;
    color: var(--primary-color); font-size: 1.25rem; font-weight: 700; letter-spacing: -0.025em;
}
.sidebar-brand i { font-size: 1.75rem; margin-right: 0.75rem; }
.sidebar .nav-link {
    color: var(--text-muted); padding: 0.75rem 1.25rem; border-radius: 8px;
    margin: 0.2rem 1rem; font-weight: 500; display: flex; align-items: center; transition: all 0.2s ease;
}
.sidebar .nav-link i { margin-right: 0.75rem; font-size: 1.2rem; transition: transform 0.2s; }
.sidebar .nav-link:hover { color: var(--primary-color); background-color: #f9fafb; }
.sidebar .nav-link:hover i { transform: scale(1.1); }
.sidebar .nav-link.active { color: var(--primary-color); background-color: var(--primary-light); font-weight: 600; }
.nav-section { font-size: 0.65rem; letter-spacing: 0.5px; }

.main-content { flex-grow: 1; min-height: 100vh; overflow-y: auto; display: flex; flex-direction: column; }
.topbar {
    padding: 0.75rem 1rem; display: flex; justify-content: space-between; align-items: center;
    position: sticky; top: 0; z-index: 10; backdrop-filter: blur(10px);
    background-color: rgba(243, 244, 246, 0.8);
}
@media (min-width: 992px) { .topbar { padding: 1rem 2rem; } }

/* Cards */
.kepler-card {
    background: var(--bg-surface); border: 1px solid var(--border-color);
    border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); margin-bottom: 1.5rem;
    transition: transform 0.2s, box-shadow 0.2s;
}
.kepler-card.hover-lift:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.kepler-card .card-body { padding: 1.5rem; }
.card-header-soft {
    background-color: transparent; border-bottom: 1px solid var(--border-color);
    padding: 1.25rem 1.5rem; font-weight: 600; color: var(--text-main);
}

/* Tablas */
.kepler-table { margin-bottom: 0; }
.kepler-table th {
    text-transform: uppercase; font-size: 0.75rem; letter-spacing: 0.05em; color: var(--text-muted);
    border-bottom: 1px solid var(--border-color); background-color: #f9fafb; padding: 1rem; font-weight: 600;
}
.kepler-table td { padding: 1rem; vertical-align: middle; color: var(--text-main); border-bottom: 1px solid var(--border-color); }
.kepler-table tbody tr { transition: background-color 0.2s; }
.kepler-table tbody tr:hover { background-color: #f9fafb; }

/* Badges suaves */
.badge-soft { padding: 0.4em 0.8em; border-radius: 6px; font-weight: 500; font-size: 0.75rem; }
.badge-soft-success { background-color: #d1fae5; color: #065f46; }
.badge-soft-warning { background-color: #fef3c7; color: #92400e; }
.badge-soft-danger { background-color: #fee2e2; color: #991b1b; }
.badge-soft-primary { background-color: var(--primary-light); color: var(--primary-hover); }
.badge-soft-secondary { background-color: #f3f4f6; color: #374151; }

/* Stepper */
.stepper-modern { display: flex; justify-content: space-between; position: relative; margin-bottom: 3rem; }
.stepper-modern::before {
    content: ''; position: absolute; top: 20px; left: 0; right: 0; height: 2px;
    background-color: var(--border-color); z-index: 1;
}
.step-item { position: relative; z-index: 2; display: flex; flex-direction: column; align-items: center; }
.step-circle {
    width: 40px; height: 40px; border-radius: 50%; background-color: var(--bg-surface);
    border: 2px solid var(--border-color); display: flex; align-items: center; justify-content: center;
    font-weight: 600; color: var(--text-muted); transition: all 0.3s;
}
.step-label { margin-top: 0.5rem; font-size: 0.85rem; color: var(--text-muted); font-weight: 500; }
.step-item.active .step-circle { background-color: var(--primary-color); border-color: var(--primary-color); color: white; box-shadow: 0 0 0 4px var(--primary-light); }
.step-item.active .step-label { color: var(--primary-color); font-weight: 600; }
.step-item.completed .step-circle { background-color: var(--primary-color); border-color: var(--primary-color); color: white; }

/* Utilidades */
.avatar-circle {
    width: 40px; height: 40px; border-radius: 50%; background-color: var(--primary-light);
    color: var(--primary-color); display: flex; align-items: center; justify-content: center;
    font-weight: 600; font-size: 1.2rem;
}
.icon-box { width: 48px; height: 48px; border-radius: 12px; display: flex; align-items: center; justify-content: center; font-size: 1.5rem; }
.bg-light-primary { background-color: var(--primary-light); color: var(--primary-color); }
.bg-light-warning { background-color: #fef3c7; color: #d97706; }
.bg-light-success { background-color: #d1fae5; color: #059669; }
.bg-light-secondary { background-color: #f3f4f6; color: #6b7280; }

.grade-input { width: 70px; text-align: center; border: 1px solid transparent; background: #f3f4f6; font-weight: 600; }
.grade-input:focus { background: white; border-color: var(--primary-color); }

/* Animación de entrada de página */
.page-fade { animation: slideUpFade 0.4s cubic-bezier(0.16, 1, 0.3, 1); }
@keyframes slideUpFade { from { opacity: 0; transform: translateY(15px); } to { opacity: 1; transform: translateY(0); } }

/* Toasts */
.toast-container { z-index: 1100; }

/* ───────────────────────────────────────────────────────────────────────────
   Landing pública (/portal) — secciones aditivas.
   Reutiliza los tokens del sistema; NO altera tipografía ni estilos base.
   ─────────────────────────────────────────────────────────────────────────── */
.cta-panel {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-hover) 100%);
    color: #ffffff; border-radius: var(--radius-lg); box-shadow: var(--shadow-md);
}
.cta-panel h2, .cta-panel p { color: #ffffff; }
.cta-panel .btn-light { color: var(--primary-hover); font-weight: 600; border-color: #ffffff; }
.cta-panel .btn-light:hover { background-color: #ffffff; transform: translateY(-1px); }

/* Número de paso de admisión (landing) */
.step-number {
    width: 52px; height: 52px; border-radius: 50%;
    background-color: var(--primary-light); color: var(--primary-color);
    display: flex; align-items: center; justify-content: center;
    font-weight: 700; font-size: 1.25rem;
}

.landing-footer { border-top: 1px solid var(--border-color); }

/* ───────────────────────────────────────────────────────────────────────────
   Ajustes responsive (tablet / móvil)
   ─────────────────────────────────────────────────────────────────────────── */
@media (max-width: 575.98px) {
    /* Stepper del asistente de admisión: más compacto en móvil */
    .stepper-modern { margin-bottom: 2rem; }
    .stepper-modern::before { top: 16px; }
    .step-circle { width: 32px; height: 32px; font-size: 0.85rem; }
    .step-label { font-size: 0.7rem; }
    /* Paneles y tarjetas con menos aire en pantallas pequeñas */
    .cta-panel { padding: 1.5rem !important; }
    .kepler-card .card-body { padding: 1.15rem; }
}

/* Tablas de datos → tarjetas apiladas en móvil/tablet-portrait (<768px).
   Solo afecta a las tablas marcadas con .responsive-cards. */
@media (max-width: 767.98px) {
    table.kepler-table.responsive-cards thead { display: none; }
    table.kepler-table.responsive-cards tbody { display: block; }
    table.kepler-table.responsive-cards tbody tr {
        display: block; background: var(--bg-surface);
        border: 1px solid var(--border-color); border-radius: var(--radius-md);
        padding: 0.25rem 0.9rem; margin-bottom: 0.85rem;
    }
    table.kepler-table.responsive-cards tbody tr:hover { background: var(--bg-surface); }
    table.kepler-table.responsive-cards tbody td {
        display: flex; align-items: center; justify-content: space-between; gap: 1rem;
        text-align: right; padding: 0.55rem 0; border: 0;
        border-bottom: 1px dashed var(--border-color);
    }
    table.kepler-table.responsive-cards tbody tr td:last-child { border-bottom: 0; }
    table.kepler-table.responsive-cards tbody td::before {
        content: attr(data-label);
        font-weight: 600; font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.03em;
        color: var(--text-muted); text-align: left; white-space: nowrap; flex-shrink: 0;
    }
    /* Celdas con controles de formulario: etiqueta arriba, control a lo ancho */
    table.kepler-table.responsive-cards tbody td:has(.form-control, .form-select) {
        flex-direction: column; align-items: stretch; text-align: left; gap: 0.3rem;
    }
}