/**
 * ==========================================================================
 * DGPEST — Sistema de diseño institucional académico
 * Archivos de Gestión | Gobierno / Educación
 * ==========================================================================
 */

/* --------------------------------------------------------------------------
   1. TIPOGRAFÍA — Google Fonts Inter
   -------------------------------------------------------------------------- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

/* --------------------------------------------------------------------------
   2. PALETA Y VARIABLES GLOBALES
   -------------------------------------------------------------------------- */
:root {
    /* Colores institucionales */
    --dg-navy: #0a1628;
    --dg-blue: #1a237e;
    --dg-blue-light: #1565c0;
    --dg-gold: #ffd700;
    --dg-gold-soft: rgba(255, 215, 0, 0.35);
    --dg-white: #ffffff;
    --dg-bg: #f0f4f8;
    --dg-text: #333333;
    --dg-text-label: #555555;
    --dg-muted: #64748b;
    --dg-border: #e2e8f0;

    /* Semánticos */
    --dg-success: #2e7d32;
    --dg-error: #c62828;
    --dg-warning: #f57f17;

    /* Tipografía */
    --dg-font: 'Inter', system-ui, -apple-system, sans-serif;
    --dg-fs-body: 0.9375rem;   /* 15px */
    --dg-fs-label: 0.8125rem;  /* 13px */
    --dg-fs-title: 1.375rem;   /* 22px */
    --dg-fs-title-lg: 1.5rem;  /* 24px */

    /* Espaciado y forma */
    --dg-radius-card: 10px;
    --dg-radius-btn: 6px;
    --dg-radius-badge: 20px;
    --dg-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
    --dg-shadow-lg: 0 8px 28px rgba(0, 0, 0, 0.12);

    /* Layout */
    --dg-sidebar-w: 260px;

    /* Breakpoints (referencia) */
    /* mobile: < 768px | tablet: 768–1024px | desktop: > 1024px */
}

/* --------------------------------------------------------------------------
   3. RESET Y BASE
   -------------------------------------------------------------------------- */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
}

body {
    font-family: var(--dg-font);
    font-size: var(--dg-fs-body);
    font-weight: 400;
    color: var(--dg-text);
    line-height: 1.5;
    background: var(--dg-bg);
    min-height: 100vh;
}

a {
    color: var(--dg-blue-light);
    transition: color 0.15s ease;
}

a:hover {
    color: var(--dg-blue);
}

img {
    max-width: 100%;
    height: auto;
}

/* --------------------------------------------------------------------------
   4. TIPOGRAFÍA
   -------------------------------------------------------------------------- */
.dg-section-title,
.page-title,
.sa-topbar-title,
.sa-card-title,
.inst-section-title {
    font-size: var(--dg-fs-title);
    font-weight: 700;
    color: var(--dg-navy);
    line-height: 1.3;
}

h1.dg-title-lg,
.login-card .titulo {
    font-size: var(--dg-fs-title-lg);
    font-weight: 700;
    color: var(--dg-navy);
}

h2 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--dg-blue);
}

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

/* Línea decorativa dorada bajo títulos principales */
.dg-gold-line,
.linea-dorada {
    width: 64px;
    height: 3px;
    margin: 0.75rem auto 1.5rem;
    background: linear-gradient(90deg, transparent, var(--dg-gold), transparent);
    border-radius: 2px;
    box-shadow: 0 0 10px var(--dg-gold-soft);
}

.dg-gold-line-left {
    margin-left: 0;
    margin-right: auto;
}

.dg-title-block {
    margin-bottom: 1.25rem;
}

.dg-title-block .dg-gold-line,
.dg-title-block .linea-dorada {
    margin-left: 0;
    margin-bottom: 0;
}

/* --------------------------------------------------------------------------
   5. ELEMENTOS DECORATIVOS
   -------------------------------------------------------------------------- */
/* Sello / escudo gubernamental (login) */
.login-sello,
.escudo {
    display: block;
    width: 88px;
    height: 88px;
    margin: 0 auto 1.25rem;
    filter: drop-shadow(0 4px 12px rgba(10, 22, 40, 0.25));
}

.login-sello-wrap {
    position: relative;
    display: inline-block;
    margin-bottom: 0.5rem;
}

.login-logo {
    display: block;
    width: auto;
    max-width: 140px;
    max-height: 120px;
    height: auto;
    margin: 0 auto 1rem;
    object-fit: contain;
    filter: drop-shadow(0 4px 12px rgba(10, 22, 40, 0.2));
}

.login-sello-wrap::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 50%;
    transform: translateX(-50%);
    width: 70%;
    height: 4px;
    background: var(--dg-gold);
    border-radius: 2px;
    opacity: 0.85;
}

/* --------------------------------------------------------------------------
   6. BOTONES
   -------------------------------------------------------------------------- */
.btn,
.sa-btn,
.inst-btn-upload,
.btn-ingresar {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    padding: 0.55rem 1rem;
    font-family: var(--dg-font);
    font-size: var(--dg-fs-body);
    font-weight: 600;
    border: none;
    border-radius: var(--dg-radius-btn);
    cursor: pointer;
    text-decoration: none;
    transition: background 0.2s ease, transform 0.1s ease, box-shadow 0.2s ease;
}

.btn-primary,
.sa-btn-view,
.inst-btn-upload,
.btn-ingresar {
    background: var(--dg-blue);
    color: var(--dg-white);
    box-shadow: 0 2px 8px rgba(26, 35, 126, 0.25);
}

.btn-primary:hover,
.sa-btn-view:hover,
.inst-btn-upload:hover:not(:disabled),
.btn-ingresar:hover {
    background: var(--dg-blue-light);
}

.btn-primary:active,
.btn-ingresar:active {
    transform: translateY(1px);
}

.sa-btn-add {
    background: var(--dg-success);
    color: var(--dg-white);
}

.sa-btn-edit {
    background: var(--dg-warning);
    color: #1a1a1a;
}

.sa-btn-delete {
    background: var(--dg-error);
    color: var(--dg-white);
}

.btn-outline {
    background: transparent;
    color: var(--dg-blue);
    border: 1px solid var(--dg-blue);
}

.btn-outline:hover {
    background: rgba(21, 101, 192, 0.08);
}

.btn-block {
    width: 100%;
}

.btn-sm,
.sa-btn-sm {
    padding: 0.4rem 0.7rem;
    font-size: 0.8125rem;
}

/* --------------------------------------------------------------------------
   7. FORMULARIOS
   -------------------------------------------------------------------------- */
.form-group label,
.field-group label,
.sa-form-group label {
    display: block;
    font-size: var(--dg-fs-label);
    font-weight: 600;
    color: var(--dg-text-label);
    margin-bottom: 0.4rem;
}

.form-group input,
.form-group select,
.form-group textarea,
.field-group input,
.sa-form-group input,
.sa-form-group select,
.sa-form-group textarea {
    width: 100%;
    padding: 0.6rem 0.75rem;
    font-family: var(--dg-font);
    font-size: var(--dg-fs-body);
    color: var(--dg-text);
    background: var(--dg-white);
    border: 1px solid var(--dg-border);
    border-radius: var(--dg-radius-btn);
    transition: border-color 0.2s, box-shadow 0.2s;
}

.form-group input:focus,
.field-group input:focus,
.sa-form-group input:focus,
.sa-form-group select:focus {
    outline: none;
    border-color: var(--dg-blue-light);
    box-shadow: 0 0 0 3px rgba(21, 101, 192, 0.15);
}

/* --------------------------------------------------------------------------
   8. CARDS Y CONTENEDORES
   -------------------------------------------------------------------------- */
.card,
.sa-card,
.inst-card,
.stat-card,
.sa-stat-card,
.login-card {
    background: var(--dg-white);
    border-radius: var(--dg-radius-card);
    box-shadow: var(--dg-shadow);
}

.card,
.sa-card,
.inst-card {
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.25rem;
}

/* --------------------------------------------------------------------------
   9. TABLAS — thead azul marino, texto blanco
   -------------------------------------------------------------------------- */
.data-table,
.sa-table,
.inst-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.875rem;
    background: var(--dg-white);
    border-radius: var(--dg-radius-card);
    overflow: hidden;
    box-shadow: var(--dg-shadow);
}

.data-table thead,
.sa-table thead,
.inst-table thead {
    background: var(--dg-navy);
}

.data-table th,
.sa-table th,
.inst-table th {
    padding: 0.75rem 1rem;
    text-align: left;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--dg-white);
    border: none;
}

.data-table td,
.sa-table td,
.inst-table td {
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--dg-border);
    color: var(--dg-text);
}

.data-table tbody tr:nth-child(even),
.sa-table tbody tr:nth-child(even),
.inst-table tbody tr:nth-child(even) {
    background: #f8fafc;
}

.data-table tbody tr:hover td,
.sa-table tbody tr:hover td,
.inst-table tbody tr:hover td {
    background: #eef2f7;
}

.sa-table-wrap,
.inst-table-wrap,
.dg-table-wrap {
    overflow-x: auto;
    border-radius: var(--dg-radius-card);
}

/* Matriz permisos: thead institucional */
.sa-matrix thead {
    background: var(--dg-navy);
}

.sa-matrix th {
    color: var(--dg-white);
    font-weight: 600;
    font-size: 0.75rem;
    text-transform: uppercase;
}

.sa-matrix tbody th,
.sa-matrix td:first-child {
    background: var(--dg-white);
    color: var(--dg-text);
}

/* --------------------------------------------------------------------------
   10. BADGES — redondeados, colores semánticos
   -------------------------------------------------------------------------- */
.badge,
.sa-badge,
.inst-badge {
    display: inline-block;
    padding: 0.25rem 0.65rem;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: var(--dg-radius-badge);
    line-height: 1.3;
}

.badge-pendiente,
.sa-badge-pendiente,
.inst-badge-pendiente {
    background: #fff8e1;
    color: var(--dg-warning);
}

.badge-revisado,
.sa-badge-revisado,
.inst-badge-revisado {
    background: #e3f2fd;
    color: var(--dg-blue-light);
}

.badge-aprobado,
.sa-badge-aprobado,
.sa-badge-success,
.inst-badge-aprobado {
    background: #e8f5e9;
    color: var(--dg-success);
}

.badge-rechazado,
.sa-badge-rechazado,
.inst-badge-rechazado {
    background: #ffebee;
    color: var(--dg-error);
}

.sa-badge-muted {
    background: #f1f5f9;
    color: var(--dg-muted);
}

/* Badge premium / institución (dorado en borde) */
.sa-badge-inst {
    border: 1px solid rgba(255, 215, 0, 0.4);
}

.sa-badge-inst.sa-badge-blue { background: #e3f2fd; color: var(--dg-blue-light); }
.sa-badge-inst.sa-badge-teal { background: #e0f2f1; color: #00695c; }
.sa-badge-inst.sa-badge-purple { background: #f3e5f5; color: #7b1fa2; }
.sa-badge-inst.sa-badge-orange { background: #fff3e0; color: #e65100; }
.sa-badge-inst.sa-badge-indigo { background: #e8eaf6; color: var(--dg-blue); }
.sa-badge-inst.sa-badge-rose { background: #fce4ec; color: #c2185b; }

/* --------------------------------------------------------------------------
   11. ALERTAS
   -------------------------------------------------------------------------- */
.alert,
.sa-alert,
.inst-alert {
    display: flex;
    align-items: flex-start;
    gap: 0.65rem;
    padding: 0.85rem 1rem;
    border-radius: var(--dg-radius-btn);
    margin-bottom: 1rem;
    font-size: 0.875rem;
}

.alert-success,
.sa-alert-success,
.inst-alert-success {
    background: #e8f5e9;
    color: var(--dg-success);
    border: 1px solid #a5d6a7;
}

.alert-error,
.sa-alert-error,
.inst-alert-error {
    background: #ffebee;
    color: var(--dg-error);
    border: 1px solid #ef9a9a;
}

.alert-warning,
.inst-alert-warning {
    background: #fff8e1;
    color: var(--dg-warning);
    border: 1px solid #ffe082;
}

/* --------------------------------------------------------------------------
   12. PÁGINA DE LOGIN
   -------------------------------------------------------------------------- */
body.login-page-body {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 1.25rem;
    background: linear-gradient(145deg, var(--dg-navy) 0%, #0d1f3c 42%, var(--dg-blue) 100%);
    position: relative;
    overflow-x: hidden;
}

body.login-page-body::before {
    content: '';
    position: fixed;
    inset: 0;
    background:
        radial-gradient(ellipse 80% 50% at 50% -10%, rgba(255, 215, 0, 0.08) 0%, transparent 55%),
        radial-gradient(circle at 8% 88%, rgba(26, 35, 126, 0.45) 0%, transparent 42%),
        radial-gradient(circle at 92% 78%, rgba(10, 22, 40, 0.55) 0%, transparent 45%);
    pointer-events: none;
    z-index: 0;
}

.login-particles {
    position: fixed;
    inset: 0;
    overflow: hidden;
    pointer-events: none;
    z-index: 0;
}

.login-particles span {
    position: absolute;
    border: 1px solid rgba(255, 215, 0, 0.12);
    background: rgba(255, 255, 255, 0.02);
    animation: dgFloatShape 18s ease-in-out infinite;
}

.login-particles span:nth-child(1) { width: 80px; height: 80px; top: 12%; left: 8%; border-radius: 50%; }
.login-particles span:nth-child(2) { width: 120px; height: 120px; top: 58%; left: 4%; transform: rotate(45deg); animation-delay: -4s; }
.login-particles span:nth-child(3) { width: 56px; height: 56px; top: 22%; right: 10%; border-radius: 4px; animation-delay: -2s; }
.login-particles span:nth-child(4) { width: 96px; height: 96px; bottom: 14%; right: 8%; border-radius: 50%; animation-delay: -6s; }
.login-particles span:nth-child(5) { width: 40px; height: 40px; top: 44%; left: 44%; transform: rotate(30deg); animation-delay: -8s; }
.login-particles span:nth-child(6) { width: 68px; height: 68px; bottom: 28%; left: 18%; border-radius: 50%; animation-delay: -3s; }

@keyframes dgFloatShape {
    0%, 100% { transform: translateY(0) rotate(0deg); opacity: 0.35; }
    50% { transform: translateY(-18px) rotate(6deg); opacity: 0.65; }
}

.login-page {
    width: 100%;
    max-width: 440px;
    position: relative;
    z-index: 1;
}

.login-card {
    padding: 2.5rem 2rem 2rem;
    text-align: center;
    box-shadow: var(--dg-shadow-lg);
    animation: dgFadeInUp 0.5s ease forwards;
}

.login-card .subtitulo {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--dg-muted);
    margin-bottom: 0.25rem;
}

.form-login {
    text-align: left;
}

.field-group {
    margin-bottom: 1.1rem;
}

.login-hint {
    margin: 0.45rem 0 0;
    font-size: 0.75rem;
    line-height: 1.4;
    color: rgba(255, 255, 255, 0.65);
}

.login-hint strong {
    color: var(--dg-gold, #ffd700);
    font-weight: 600;
}

.input-wrap {
    position: relative;
}

.input-wrap .field-icon {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--dg-muted);
    font-size: 0.95rem;
    pointer-events: none;
}

.input-wrap input {
    padding-left: 2.65rem;
}

.input-wrap.dg-password-field input {
    padding-right: 2.75rem;
}

.pw-toggle {
    position: absolute;
    right: 0.6rem;
    top: 50%;
    transform: translateY(-50%);
    border: none;
    background: transparent;
    color: var(--dg-muted);
    cursor: pointer;
    padding: 0.35rem 0.4rem;
    line-height: 1;
    border-radius: 4px;
    z-index: 2;
}

.pw-toggle:hover,
.pw-toggle:focus-visible {
    color: var(--dg-navy);
    outline: none;
    background: rgba(26, 35, 126, 0.06);
}

.pw-toggle[aria-pressed="true"] {
    color: var(--dg-navy-mid, #3949ab);
}

.btn-ingresar {
    width: 100%;
    margin-top: 0.5rem;
    padding: 0.75rem;
}

.pie-login {
    margin-top: 1.75rem;
    padding-top: 1.25rem;
    border-top: 1px solid var(--dg-border);
    font-size: 0.75rem;
    color: var(--dg-muted);
}

.pie-credit {
    margin-top: 0.75rem;
    font-size: 0.7rem;
    color: var(--dg-muted);
    letter-spacing: 0.02em;
}

.pie-credit a {
    color: var(--dg-blue);
    font-weight: 600;
    text-decoration: none;
}

.pie-credit a:hover {
    color: var(--dg-blue-light);
    text-decoration: underline;
}

.pie-ecosistema {
    margin-top: 0.5rem;
    font-size: 0.68rem;
    color: var(--dg-muted);
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.pie-ecosistema a {
    color: var(--dg-navy, #1a237e);
    font-weight: 700;
    text-decoration: none;
    text-transform: none;
    letter-spacing: 0.02em;
}

.pie-ecosistema a:hover {
    color: var(--dg-blue);
    text-decoration: underline;
}

/* --------------------------------------------------------------------------
   13. ANIMACIONES
   -------------------------------------------------------------------------- */
@keyframes dgFadeInUp {
    from {
        opacity: 0;
        transform: translateY(14px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in,
.sa-card,
.sa-stat-card,
.sa-mini-stat,
.inst-card,
.inst-upload-card,
.stat-card {
    animation: dgFadeInUp 0.45s ease forwards;
}

/* --------------------------------------------------------------------------
   14. UTILIDADES
   -------------------------------------------------------------------------- */
.mt-1 { margin-top: 1rem; }
.mb-1 { margin-bottom: 1rem; }

.grid-2 {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 1.5rem;
}

.stats-grid,
.sa-stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.25rem;
    margin-bottom: 1.5rem;
}

/* --------------------------------------------------------------------------
   15. RESPONSIVE — Mobile / Tablet / Desktop
   -------------------------------------------------------------------------- */

/* Tablet */
@media (max-width: 1024px) {
    .sa-content,
    .inst-content {
        padding: 1.25rem;
    }

    .grid-2 {
        grid-template-columns: 1fr;
    }
}

/* Mobile — sidebar drawer */
@media (max-width: 767px) {
    :root {
        --dg-fs-title: 1.25rem;
    }

    .login-card {
        padding: 2rem 1.35rem 1.75rem;
    }

    .login-sello,
    .escudo {
        width: 72px;
        height: 72px;
    }

    .login-card .titulo {
        font-size: 1.15rem;
        letter-spacing: 0.08em;
    }

    .sa-stats-grid,
    .stats-grid {
        grid-template-columns: 1fr;
    }

    .data-table,
    .sa-table,
    .inst-table {
        font-size: 0.8125rem;
    }

    .data-table th,
    .data-table td,
    .sa-table th,
    .sa-table td {
        padding: 0.6rem 0.75rem;
    }
}

/* Desktop amplio */
@media (min-width: 1025px) {
    .login-page {
        max-width: 460px;
    }

    .login-card {
        padding: 3rem 2.5rem 2.25rem;
    }
}

/* --------------------------------------------------------------------------
   16. LEGACY — header/footer antiguo (includes/header.php)
   -------------------------------------------------------------------------- */
.site-header {
    background: var(--dg-navy);
    color: var(--dg-white);
    box-shadow: var(--dg-shadow);
}

.site-footer {
    background: var(--dg-navy);
    color: rgba(255, 255, 255, 0.75);
    padding: 1rem;
    font-size: 0.85rem;
    text-align: center;
}

.main-nav a {
    color: rgba(255, 255, 255, 0.9);
    text-decoration: none;
}

.main-nav a:hover {
    color: var(--dg-gold);
}

.page-login .main-content {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: calc(100vh - 120px);
}

.login-wrapper {
    width: 100%;
    max-width: 420px;
    padding: 1rem;
}

.stat-card {
    padding: 1.25rem;
    border-left: 4px solid var(--dg-blue);
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--dg-navy);
}

.stat-label {
    font-size: 0.85rem;
    color: var(--dg-muted);
}