/* ============================================================
   estilos.css — Sistema TEC Certificados
   Fuente: Inter (Google Fonts)
   Temas: [data-theme="dark"] sidebar oscuro (default)
          [data-theme="light"] todo blanco
   Colores institucionales: azul #003087 · rojo #8b0000
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

/* ── Variables de tema ────────────────────────────────────── */
:root,
[data-theme="dark"] {
    --sb-bg:        #0f172a;
    --sb-border:    rgba(255,255,255,.07);
    --sb-text:      rgba(255,255,255,.55);
    --sb-text-act:  #ffffff;
    --sb-item-act:  #003087;
    --sb-item-hov:  rgba(255,255,255,.06);
    --sb-section:   rgba(255,255,255,.25);
    --sb-user-bg:   rgba(255,255,255,.05);

    --page-bg:      #f1f5f9;
    --card-bg:      #ffffff;
    --card-border:  #e2e8f0;
    --topbar-bg:    #ffffff;
    --topbar-border:#e2e8f0;
    --text-1:       #0f172a;
    --text-2:       #475569;
    --text-3:       #94a3b8;
    --input-bg:     #f8fafc;
    --input-border: #e2e8f0;
    --table-head:   #f8fafc;
    --table-hover:  #f8fafc;
    --divider:      #e2e8f0;
}

[data-theme="light"] {
    --sb-bg:        #ffffff;
    --sb-border:    #e2e8f0;
    --sb-text:      #64748b;
    --sb-text-act:  #003087;
    --sb-item-act:  #eff6ff;
    --sb-item-hov:  #f8fafc;
    --sb-section:   #94a3b8;
    --sb-user-bg:   #f8fafc;
}

/* ── Reset base ───────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }

body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    font-size: 13.5px;
    color: var(--text-1);
    background: var(--page-bg);
    margin: 0;
    -webkit-font-smoothing: antialiased;
}

/* ── Layout principal ─────────────────────────────────────── */
.sidebar {
    position: fixed;
    top: 0; left: 0;
    width: 230px;
    height: 100vh;
    background: var(--sb-bg);
    border-right: 1px solid var(--sb-border);
    display: flex;
    flex-direction: column;
    z-index: 100;
    transition: background .2s, border-color .2s;
}

.main-content {
    margin-left: 230px;
    min-height: 100vh;
    padding: 0;
}

/* ── Sidebar: logo ────────────────────────────────────────── */
.sidebar .logo-box {
    padding: 18px 16px 15px;
    border-bottom: 1px solid var(--sb-border);
    display: flex;
    align-items: center;
    gap: 10px;
}

.sidebar .logo-icon {
    width: 34px;
    height: 34px;
    background: #003087;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.sidebar .logo-icon img {
    width: 28px;
    height: 28px;
    object-fit: contain;
    border-radius: 5px;
}

.sidebar .logo-text strong {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--sb-text-act);
    line-height: 1.2;
}

.sidebar .logo-text small {
    font-size: 10.5px;
    color: var(--sb-text);
}

/* ── Sidebar: secciones y nav ─────────────────────────────── */
.sb-section {
    padding: 16px 16px 5px;
    font-size: 10px;
    font-weight: 600;
    letter-spacing: .08em;
    text-transform: uppercase;
    color: var(--sb-section);
}

.sidebar .nav { padding: 4px 8px; flex: 1; overflow-y: auto; }

.sidebar .nav-link {
    display: flex;
    align-items: center;
    gap: 9px;
    padding: 8px 10px;
    border-radius: 7px;
    color: var(--sb-text);
    font-size: 13px;
    font-weight: 400;
    text-decoration: none;
    transition: background .15s, color .15s;
    margin: 1px 0;
    border-left: none;
}

.sidebar .nav-link:hover {
    background: var(--sb-item-hov);
    color: var(--sb-text-act);
}

.sidebar .nav-link.active {
    background: var(--sb-item-act);
    color: var(--sb-text-act);
    font-weight: 500;
}

/* Punto de color junto al ítem */
.sb-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    flex-shrink: 0;
}

/* ── Sidebar: usuario + selector de tema ─────────────────── */
.sb-footer {
    padding: 10px;
    border-top: 1px solid var(--sb-border);
}

.sb-user {
    display: flex;
    align-items: center;
    gap: 9px;
    padding: 9px 10px;
    background: var(--sb-user-bg);
    border-radius: 8px;
    margin-bottom: 8px;
}

.sb-avatar {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background: #003087;
    color: #fff;
    font-size: 12px;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.sb-user-name {
    font-size: 12.5px;
    font-weight: 500;
    color: var(--sb-text-act);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.sb-user-role {
    font-size: 10.5px;
    color: var(--sb-text);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Selector de tema */
.theme-toggle {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 4px;
}

.theme-toggle span {
    font-size: 11px;
    color: var(--sb-text);
}

.theme-switch {
    position: relative;
    width: 38px;
    height: 20px;
}

.theme-switch input { opacity: 0; width: 0; height: 0; }

.theme-switch .slider {
    position: absolute;
    inset: 0;
    background: rgba(255,255,255,.15);
    border-radius: 20px;
    cursor: pointer;
    transition: .2s;
}

[data-theme="light"] .theme-switch .slider {
    background: #e2e8f0;
}

.theme-switch .slider::before {
    content: '';
    position: absolute;
    width: 14px;
    height: 14px;
    left: 3px;
    top: 3px;
    border-radius: 50%;
    background: #fff;
    transition: .2s;
}

.theme-switch input:checked + .slider::before {
    transform: translateX(18px);
}

.theme-switch input:checked + .slider {
    background: #003087;
}

/* ── Topbar ───────────────────────────────────────────────── */
.topbar {
    background: var(--topbar-bg);
    border-bottom: 1px solid var(--topbar-border);
    padding: 13px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 50;
}

.topbar h5 {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-1);
    margin: 0;
}

.topbar-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 12.5px;
    color: var(--text-2);
}

.topbar-meta .btn-logout {
    background: none;
    border: none;
    font-size: 12.5px;
    color: var(--text-2);
    cursor: pointer;
    padding: 0;
}

.topbar-meta .btn-logout:hover { color: #8b0000; }

/* ── Contenido ────────────────────────────────────────────── */
.page-content { padding: 24px; }

/* ── Tarjetas de estadísticas ─────────────────────────────── */
.stat-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 10px;
    padding: 18px 20px;
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    border-radius: 10px 10px 0 0;
}

.stat-card.azul::before   { background: #003087; }
.stat-card.verde::before  { background: #16a34a; }
.stat-card.amber::before  { background: #d97706; }
.stat-card.rojo::before   { background: #8b0000; }

.stat-label {
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .06em;
    color: var(--text-3);
    margin-bottom: 8px;
}

.stat-num {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-1);
    line-height: 1;
    margin-bottom: 4px;
}

.stat-sub {
    font-size: 11.5px;
    color: var(--text-3);
}

/* ── Cards generales ──────────────────────────────────────── */
.card {
    background: var(--card-bg) !important;
    border: 1px solid var(--card-border) !important;
    border-radius: 10px !important;
    box-shadow: none !important;
}

.card-header {
    background: var(--table-head) !important;
    border-bottom: 1px solid var(--card-border) !important;
    font-weight: 600 !important;
    color: var(--text-1) !important;
    padding: 12px 16px !important;
    border-radius: 10px 10px 0 0 !important;
}

.card-body { color: var(--text-1); }

/* ── Tablas ───────────────────────────────────────────────── */
.table {
    color: var(--text-1) !important;
    margin: 0 !important;
    font-size: 13px;
}

.table thead th {
    background: var(--table-head) !important;
    color: var(--text-2) !important;
    font-size: 11px !important;
    font-weight: 600 !important;
    text-transform: uppercase !important;
    letter-spacing: .06em !important;
    border-bottom: 1px solid var(--card-border) !important;
    padding: 10px 14px !important;
}

.table tbody td {
    padding: 11px 14px !important;
    border-color: var(--card-border) !important;
    vertical-align: middle;
}

.table-hover tbody tr:hover td {
    background: var(--table-hover) !important;
}

/* ── Formularios ──────────────────────────────────────────── */
.form-control, .form-select {
    background: var(--input-bg) !important;
    border: 1px solid var(--input-border) !important;
    border-radius: 7px !important;
    color: var(--text-1) !important;
    font-size: 13.5px !important;
    padding: 8px 12px !important;
    transition: border-color .15s, box-shadow .15s;
}

.form-control:focus, .form-select:focus {
    border-color: #003087 !important;
    box-shadow: 0 0 0 3px rgba(0,48,135,.1) !important;
    outline: none;
}

.form-label {
    font-size: 12.5px;
    font-weight: 500;
    color: var(--text-2);
    margin-bottom: 5px;
}

/* ── Botones ──────────────────────────────────────────────── */
.btn-primary {
    background: #003087 !important;
    border-color: #003087 !important;
    font-size: 13px !important;
    font-weight: 500 !important;
    border-radius: 7px !important;
    padding: 8px 16px !important;
    transition: background .15s, transform .1s;
}

.btn-primary:hover {
    background: #002266 !important;
    border-color: #002266 !important;
    transform: translateY(-1px);
}

.btn-primary:active { transform: translateY(0); }

.btn-outline-primary {
    color: #003087 !important;
    border-color: #003087 !important;
    font-size: 13px !important;
    font-weight: 500 !important;
    border-radius: 7px !important;
}

.btn-outline-primary:hover {
    background: #003087 !important;
    color: #fff !important;
}

.btn-outline-secondary {
    font-size: 13px !important;
    font-weight: 500 !important;
    border-radius: 7px !important;
    color: var(--text-2) !important;
    border-color: var(--card-border) !important;
}

.btn-outline-secondary:hover {
    background: var(--table-head) !important;
    color: var(--text-1) !important;
}

.btn-outline-danger {
    font-size: 13px !important;
    font-weight: 500 !important;
    border-radius: 7px !important;
}

.btn-success {
    background: #16a34a !important;
    border-color: #16a34a !important;
    font-size: 13px !important;
    font-weight: 500 !important;
    border-radius: 7px !important;
}

/* ── Badges ───────────────────────────────────────────────── */
.badge {
    font-size: 11px !important;
    font-weight: 500 !important;
    border-radius: 5px !important;
    padding: 3px 8px !important;
}

.badge.bg-success   { background: #dcfce7 !important; color: #166534 !important; }
.badge.bg-secondary { background: #f1f5f9 !important; color: #475569 !important; }
.badge.bg-primary   { background: #dbeafe !important; color: #1e40af !important; }
.badge.bg-warning   { background: #fef3c7 !important; color: #92400e !important; }
.badge.bg-danger    { background: #fee2e2 !important; color: #991b1b !important; }
.badge.bg-info      { background: #e0f2fe !important; color: #075985 !important; }

/* ── Alertas ──────────────────────────────────────────────── */
.alert {
    border-radius: 8px !important;
    border: 1px solid transparent !important;
    font-size: 13.5px !important;
}

.alert-success {
    background: #f0fdf4 !important;
    border-color: #bbf7d0 !important;
    color: #166534 !important;
}

.alert-danger {
    background: #fef2f2 !important;
    border-color: #fecaca !important;
    color: #991b1b !important;
}

.alert-info {
    background: #eff6ff !important;
    border-color: #bfdbfe !important;
    color: #1e40af !important;
}

.alert-warning {
    background: #fffbeb !important;
    border-color: #fde68a !important;
    color: #92400e !important;
}

/* ── Breadcrumb ───────────────────────────────────────────── */
.breadcrumb {
    font-size: 12.5px;
    background: none;
    padding: 0;
    margin-bottom: 16px;
}

.breadcrumb-item a { color: #003087; text-decoration: none; }
.breadcrumb-item.active { color: var(--text-3); }

/* ── Nav tabs ─────────────────────────────────────────────── */
.nav-tabs {
    border-color: var(--card-border) !important;
}

.nav-tabs .nav-link {
    font-size: 13px;
    color: var(--text-2) !important;
    border: none !important;
    border-bottom: 2px solid transparent !important;
    border-radius: 0 !important;
    padding: 8px 16px !important;
}

.nav-tabs .nav-link.active {
    color: #003087 !important;
    border-bottom-color: #003087 !important;
    background: none !important;
    font-weight: 500;
}

.nav-tabs .nav-link:hover {
    color: var(--text-1) !important;
    border-bottom-color: var(--card-border) !important;
}

/* ── Login ────────────────────────────────────────────────── */
.login-wrapper {
  
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #0f172a 0%, #1e3a5f 100%);
    padding: 20px;   
}

.login-card {
    width: 100%;
    max-width: 400px;
    background: rgba(255, 255, 255, 0.15);
    border: none;
    border-radius: 14px;
    box-shadow: 0 20px 60px rgba(0,0,0,.3);
    overflow: visible;   /* ← cambia hidden por visible */
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.25);
}

.login-card-header {
    background: rgba(0, 48, 135, 0.6);
    padding: 28px 32px 24px;
    text-align: center;
    border-radius: 14px 14px 0 0;
}


.login-card-header img {
    max-width: 130px;
    margin-bottom: 10px;
}

.login-card-header h1 {
    font-size: 14px;
    font-weight: 600;
    color: #fff;
    margin: 0 0 4px;
    line-height: 1.3;
}

.login-card-header p {
    font-size: 11.5px;
    color: rgba(255,255,255,.6);
    margin: 0;
}

.login-card-body { padding: 28px 32px 32px; }

.login-card-body .btn-primary {
    width: 100%;
    padding: 10px !important;
    font-size: 14px !important;
    font-weight: 600 !important;
    letter-spacing: .01em;
}

.login-card-body .form-label {
    color: #ffffff;
    font-weight: 600;
    text-shadow: 0 1px 3px rgba(0,0,0,0.5);
}
.login-card-body .text-center {
    color: rgba(255,255,255,0.8);
}
.login-card-body .text-center small,
.login-card-body .text-center {
    color: rgba(255, 255, 255, 0.85) !important;
}

/* ── Responsive ───────────────────────────────────────────── */
@media (max-width: 768px) {
    .sidebar { transform: translateX(-100%); transition: transform .25s; }
    .sidebar.show { transform: translateX(0); }
    .main-content { margin-left: 0; }
}

/* ── Sticky guardar ───────────────────────────────────────── */
.sticky-bottom {
    position: sticky;
    bottom: 0;
    z-index: 10;
    background: var(--card-bg);
    border-top: 1px solid var(--card-border) !important;
    padding: 12px !important;
}

/* ── Scrollbar ────────────────────────────────────────────── */
::-webkit-scrollbar { width: 5px; height: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--card-border); border-radius: 99px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-3); }