/* ==========================================================================
   Ambulancias Vida ERP — Hoja de estilos principal
   Paleta institucional: rojo #dc2626
   ========================================================================== */

:root {
    --rojo: #dc2626;
    --rojo-hover: #b91c1c;
    --rojo-oscuro: #991b1b;
    --rojo-claro: #fef2f2;
    --verde: #15803d;
    --verde-claro: #f0fdf4;
    --naranja: #ea580c;
    --naranja-claro: #fff7ed;
    --azul: #0891b2;
    --gris-900: #111827;
    --gris-700: #374151;
    --gris-500: #6b7280;
    --gris-300: #d1d5db;
    --gris-200: #e5e7eb;
    --gris-100: #f3f4f6;
    --gris-50: #f9fafb;
    --sidebar-bg: #0d0505;
    --sidebar-w: 240px;
    --radio: 8px;
    --sombra: 0 1px 3px rgba(0, 0, 0, .1);
    --sombra-md: 0 4px 12px rgba(0, 0, 0, .08);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    font-size: 14px;
    color: var(--gris-900);
    background: #f5f7fa;
    -webkit-font-smoothing: antialiased;
}

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

/* ==================== LAYOUT ==================== */
.layout { display: flex; min-height: 100vh; }

.sidebar {
    width: var(--sidebar-w);
    background: var(--sidebar-bg);
    color: #fff;
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0; left: 0; bottom: 0;
    z-index: 100;
    transition: transform .2s ease;
    overflow-y: auto;
}
.sidebar.collapsed { transform: translateX(-100%); }

.sidebar-brand {
    height: 64px;
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 0 14px;
    border-bottom: 2px solid var(--rojo);
    flex-shrink: 0;
}
.brand-logo {
    width: 40px; height: 40px;
    object-fit: contain;
    background: #fff;
    border-radius: 50%;
    padding: 2px;
}
.brand-text { font-size: 12px; font-weight: 700; line-height: 1.25; letter-spacing: .5px; }
.brand-text strong { color: #ef4444; }

.sidebar-nav { padding: 12px 0; flex: 1; }

.nav-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 16px;
    color: rgba(255, 255, 255, .7);
    font-size: 13.5px;
    transition: background .15s, color .15s;
}
.nav-item:hover { background: rgba(220, 38, 38, .15); color: #fff; text-decoration: none; }
.nav-item.active { background: var(--rojo); color: #fff; font-weight: 500; }
.nav-icon { font-size: 15px; width: 20px; text-align: center; }
.nav-badge {
    margin-left: auto;
    background: var(--naranja);
    color: #fff;
    font-size: 11px;
    padding: 1px 7px;
    border-radius: 10px;
    font-weight: 600;
}

.nav-group { margin-top: 8px; }
.nav-group-title {
    padding: 8px 16px 4px;
    font-size: 10.5px;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: rgba(255, 255, 255, .4);
    font-weight: 600;
}

.main { flex: 1; margin-left: var(--sidebar-w); transition: margin .2s ease; }
.main.expanded { margin-left: 0; }

/* ==================== TOPBAR ==================== */
.topbar {
    height: 64px;
    background: #fff;
    border-bottom: 1px solid var(--gris-200);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 20px;
    position: sticky;
    top: 0;
    z-index: 50;
}
.topbar-right { display: flex; align-items: center; gap: 14px; }

.btn-icon {
    background: none;
    border: none;
    font-size: 18px;
    cursor: pointer;
    padding: 8px;
    border-radius: var(--radio);
    line-height: 1;
    position: relative;
}
.btn-icon:hover { background: var(--gris-100); }

/* Notificaciones */
.notif-wrapper { position: relative; }
.notif-badge {
    position: absolute;
    top: 2px; right: 2px;
    background: var(--rojo);
    color: #fff;
    font-size: 10px;
    font-weight: 700;
    min-width: 17px;
    height: 17px;
    border-radius: 9px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 4px;
}
.notif-dropdown {
    position: absolute;
    top: 46px; right: 0;
    width: 360px;
    max-height: 440px;
    background: #fff;
    border: 1px solid var(--gris-200);
    border-radius: var(--radio);
    box-shadow: var(--sombra-md);
    overflow: hidden;
    display: flex;
    flex-direction: column;
}
.notif-header {
    padding: 12px 14px;
    border-bottom: 1px solid var(--gris-200);
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.notif-list { overflow-y: auto; flex: 1; }
.notif-item {
    padding: 11px 14px;
    border-bottom: 1px solid var(--gris-100);
    cursor: pointer;
    display: flex;
    gap: 10px;
}
.notif-item:hover { background: var(--gris-50); }
.notif-item.no-leida { background: #eff6ff; }
.notif-item-icon { font-size: 18px; }
.notif-item-titulo { font-weight: 600; font-size: 13px; }
.notif-item-msg { font-size: 12.5px; color: var(--gris-500); margin-top: 2px; }
.notif-item-fecha { font-size: 11px; color: var(--gris-500); margin-top: 3px; }
.notif-empty { padding: 28px; text-align: center; color: var(--gris-500); font-size: 13px; }

.link-btn { background: none; border: none; color: var(--rojo); font-size: 12px; cursor: pointer; }

/* Menú de usuario */
.user-menu { position: relative; }
.user-trigger {
    display: flex;
    align-items: center;
    gap: 9px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px 8px;
    border-radius: var(--radio);
}
.user-trigger:hover { background: var(--gris-100); }
.avatar {
    width: 36px; height: 36px;
    background: var(--rojo);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 15px;
}
.user-info { display: flex; flex-direction: column; align-items: flex-start; line-height: 1.25; }
.user-name { font-size: 13px; font-weight: 500; }
.user-role { font-size: 11.5px; color: var(--gris-500); }

.user-dropdown {
    position: absolute;
    top: 50px; right: 0;
    min-width: 190px;
    background: #fff;
    border: 1px solid var(--gris-200);
    border-radius: var(--radio);
    box-shadow: var(--sombra-md);
    padding: 6px 0;
}
.user-dropdown a {
    display: block;
    padding: 9px 14px;
    color: var(--gris-700);
    font-size: 13px;
}
.user-dropdown a:hover { background: var(--gris-100); text-decoration: none; }
.user-dropdown a.danger { color: var(--rojo); }
.user-dropdown hr { border: none; border-top: 1px solid var(--gris-200); margin: 5px 0; }

/* ==================== CONTENIDO ==================== */
.content { padding: 22px; }

.page-header {
    background: #fff;
    padding: 15px 20px;
    margin-bottom: 20px;
    border-radius: var(--radio);
    border-left: 4px solid var(--rojo);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 14px;
    flex-wrap: wrap;
}
.page-header h1 { font-size: 19px; font-weight: 600; }
.page-header .subtitle { font-size: 12.5px; color: var(--gris-500); margin-top: 2px; }
.page-actions { display: flex; gap: 8px; }

/* ==================== KPI CARDS ==================== */
.kpi-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(215px, 1fr));
    gap: 15px;
    margin-bottom: 22px;
}
.kpi-card {
    background: #fff;
    padding: 16px;
    border-radius: var(--radio);
    border-top: 3px solid transparent;
    box-shadow: var(--sombra);
    transition: transform .15s, box-shadow .15s, border-color .15s;
}
.kpi-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--sombra-md);
    border-top-color: var(--rojo);
}
.kpi-label { font-size: 11.5px; color: var(--gris-500); text-transform: uppercase; letter-spacing: .4px; }
.kpi-value { font-size: 23px; font-weight: 600; margin-top: 5px; }
.kpi-value.rojo { color: var(--rojo); }
.kpi-value.verde { color: var(--verde); }
.kpi-value.naranja { color: var(--naranja); }
.kpi-value.azul { color: var(--azul); }
.kpi-sub { font-size: 12px; color: var(--gris-500); margin-top: 3px; }

/* ==================== CARDS / PANELES ==================== */
.card {
    background: #fff;
    border-radius: var(--radio);
    box-shadow: var(--sombra);
    margin-bottom: 20px;
    overflow: hidden;
}
.card-header {
    padding: 14px 18px;
    border-bottom: 1px solid var(--gris-200);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
}
.card-header h2 { font-size: 15px; font-weight: 600; }
.card-body { padding: 18px; }
.card-body.no-pad { padding: 0; }

.grid-2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(340px, 1fr)); gap: 20px; }
.grid-3 { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 16px; }

/* ==================== TABLAS ==================== */
.table-wrap { overflow-x: auto; }
table.tabla {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}
table.tabla thead th {
    background: var(--gris-50);
    padding: 10px 12px;
    text-align: left;
    font-weight: 600;
    font-size: 11.5px;
    text-transform: uppercase;
    letter-spacing: .4px;
    color: var(--gris-700);
    border-bottom: 2px solid var(--gris-200);
    white-space: nowrap;
}
table.tabla tbody td {
    padding: 10px 12px;
    border-bottom: 1px solid var(--gris-100);
    vertical-align: middle;
}
table.tabla tbody tr:hover { background: var(--gris-50); }
table.tabla tbody tr.cancelada { background: var(--rojo-claro); color: var(--rojo-oscuro); }
.text-right { text-align: right !important; }
.text-center { text-align: center !important; }
.nowrap { white-space: nowrap; }

/* ==================== BADGES ==================== */
.badge {
    display: inline-block;
    padding: 3px 9px;
    border-radius: 12px;
    font-size: 11.5px;
    font-weight: 500;
    white-space: nowrap;
}
.badge-verde { background: var(--verde-claro); color: var(--verde); }
.badge-rojo { background: var(--rojo-claro); color: var(--rojo); }
.badge-naranja { background: var(--naranja-claro); color: var(--naranja); }
.badge-azul { background: #ecfeff; color: var(--azul); }
.badge-gris { background: var(--gris-100); color: var(--gris-700); }
.badge-morado { background: #f5f3ff; color: #7c3aed; }

/* ==================== BOTONES ==================== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 15px;
    border-radius: 6px;
    border: 1px solid transparent;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: background .15s, border-color .15s;
    text-decoration: none;
    line-height: 1.4;
}
.btn:hover { text-decoration: none; }
.btn-primary { background: var(--rojo); color: #fff; }
.btn-primary:hover { background: var(--rojo-hover); }
.btn-secondary { background: #fff; color: var(--gris-700); border-color: var(--gris-300); }
.btn-secondary:hover { background: var(--gris-50); }
.btn-success { background: var(--verde); color: #fff; }
.btn-success:hover { background: #166534; }
.btn-danger { background: #fff; color: var(--rojo); border-color: var(--rojo); }
.btn-danger:hover { background: var(--rojo-claro); }
.btn-sm { padding: 5px 10px; font-size: 12px; }
.btn:disabled { opacity: .5; cursor: not-allowed; }

/* ==================== FORMULARIOS ==================== */
.form-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 15px; }
.form-group { display: flex; flex-direction: column; gap: 5px; }
.form-group.full { grid-column: 1 / -1; }
.form-group label { font-size: 12.5px; font-weight: 500; color: var(--gris-700); }
.form-group label .req { color: var(--rojo); }
.form-group .hint { font-size: 11.5px; color: var(--gris-500); }

input[type=text], input[type=email], input[type=password], input[type=number],
input[type=date], input[type=datetime-local], input[type=search], select, textarea {
    padding: 8px 11px;
    border: 1px solid var(--gris-300);
    border-radius: 6px;
    font-size: 13.5px;
    font-family: inherit;
    background: #fff;
    width: 100%;
}
input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: var(--rojo);
    box-shadow: 0 0 0 3px rgba(220, 38, 38, .1);
}
input[readonly], input:disabled, select:disabled {
    background: var(--gris-100);
    color: var(--gris-500);
    cursor: not-allowed;
}
textarea { resize: vertical; min-height: 68px; }

.checkbox-inline { display: flex; align-items: center; gap: 7px; font-size: 13px; }
.checkbox-inline input { width: auto; }

.filtros {
    display: flex;
    gap: 11px;
    flex-wrap: wrap;
    align-items: flex-end;
}
.filtros .form-group { min-width: 150px; }

/* ==================== ALERTAS ==================== */
.messages { margin-bottom: 18px; }
.alert {
    padding: 12px 16px;
    border-radius: var(--radio);
    margin-bottom: 10px;
    font-size: 13.5px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
}
.alert-success { background: var(--verde-claro); color: var(--verde); border-left: 3px solid var(--verde); }
.alert-error, .alert-danger { background: var(--rojo-claro); color: var(--rojo-oscuro); border-left: 3px solid var(--rojo); }
.alert-warning { background: var(--naranja-claro); color: var(--naranja); border-left: 3px solid var(--naranja); }
.alert-info { background: #eff6ff; color: #1e40af; border-left: 3px solid #3b82f6; }
.alert-close { background: none; border: none; font-size: 18px; cursor: pointer; color: inherit; opacity: .6; }
.alert-close:hover { opacity: 1; }

/* ==================== MODAL ==================== */
.modal-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, .45);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 200;
    padding: 20px;
}
.modal {
    background: #fff;
    border-radius: 10px;
    width: 100%;
    max-width: 620px;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    box-shadow: 0 20px 50px rgba(0, 0, 0, .3);
}
.modal.wide { max-width: 860px; }
.modal-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--gris-200);
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.modal-header h3 { font-size: 16px; font-weight: 600; }
.modal-body { padding: 20px; overflow-y: auto; flex: 1; }
.modal-footer {
    padding: 14px 20px;
    border-top: 1px solid var(--gris-200);
    display: flex;
    justify-content: flex-end;
    gap: 9px;
}
.modal-close { background: none; border: none; font-size: 22px; cursor: pointer; color: var(--gris-500); }

/* ==================== TOASTS ==================== */
.toast-container {
    position: fixed;
    top: 20px; right: 20px;
    z-index: 300;
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.toast {
    background: #fff;
    border-radius: var(--radio);
    box-shadow: 0 8px 24px rgba(0, 0, 0, .15);
    padding: 13px 16px;
    min-width: 300px;
    max-width: 390px;
    border-left: 4px solid var(--rojo);
    display: flex;
    gap: 11px;
    animation: slideIn .25s ease;
    cursor: pointer;
}
.toast.verde { border-left-color: var(--verde); }
.toast.naranja { border-left-color: var(--naranja); }
.toast-icon { font-size: 19px; }
.toast-titulo { font-weight: 600; font-size: 13.5px; }
.toast-msg { font-size: 12.5px; color: var(--gris-500); margin-top: 2px; }

@keyframes slideIn {
    from { transform: translateX(110%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

/* ==================== PAGINACIÓN ==================== */
.paginacion {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 13px 18px;
    border-top: 1px solid var(--gris-200);
    font-size: 13px;
    flex-wrap: wrap;
    gap: 10px;
}
.paginacion .paginas { display: flex; gap: 5px; }
.paginacion a, .paginacion span.actual {
    padding: 5px 11px;
    border: 1px solid var(--gris-300);
    border-radius: 5px;
    color: var(--gris-700);
}
.paginacion a:hover { background: var(--gris-100); text-decoration: none; }
.paginacion span.actual { background: var(--rojo); color: #fff; border-color: var(--rojo); }

/* ==================== EMPTY STATE ==================== */
.empty-state { padding: 46px 20px; text-align: center; color: var(--gris-500); }
.empty-state .icon { font-size: 40px; margin-bottom: 10px; opacity: .45; }

/* ==================== LOGIN ==================== */
.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    background:
        radial-gradient(circle at 20% 30%, rgba(255,255,255,.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(255,255,255,.08) 0%, transparent 50%),
        linear-gradient(135deg, var(--rojo) 0%, var(--rojo-oscuro) 100%);
}
.login-card {
    background: #fff;
    border-radius: 12px;
    padding: 34px;
    width: 100%;
    max-width: 410px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, .4);
}
.login-logo { text-align: center; margin-bottom: 24px; }
.login-logo img { width: 110px; height: 110px; object-fit: contain; }
.login-logo h1 { color: var(--rojo); font-size: 24px; margin-top: 12px; font-weight: 700; }
.login-logo p { color: var(--gris-500); font-size: 13.5px; margin-top: 3px; }
.login-form { display: flex; flex-direction: column; gap: 15px; }
.login-form .btn { justify-content: center; padding: 11px; font-size: 14px; }
.login-footer { text-align: center; margin-top: 20px; font-size: 11.5px; color: var(--gris-500); }

/* ==================== UTILIDADES ==================== */
.mt-0 { margin-top: 0; }
.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.text-verde { color: var(--verde); }
.text-rojo { color: var(--rojo); }
.text-naranja { color: var(--naranja); }
.text-muted { color: var(--gris-500); }
.fw-600 { font-weight: 600; }
.small { font-size: 12px; }
.mono { font-family: 'SF Mono', Consolas, monospace; font-size: 12.5px; }

/* Scrollbar */
::-webkit-scrollbar { width: 9px; height: 9px; }
::-webkit-scrollbar-track { background: var(--gris-100); }
::-webkit-scrollbar-thumb { background: var(--gris-300); border-radius: 5px; }
::-webkit-scrollbar-thumb:hover { background: var(--gris-500); }

/* ==================== RESPONSIVE ==================== */
@media (max-width: 992px) {
    .sidebar { transform: translateX(-100%); }
    .sidebar.open { transform: translateX(0); }
    .main { margin-left: 0; }
    .content { padding: 15px; }
    .user-info { display: none; }
}

@media print {
    .sidebar, .topbar, .page-actions, .filtros, .paginacion { display: none !important; }
    .main { margin-left: 0; }
    .content { padding: 0; }
    .card { box-shadow: none; border: 1px solid #ddd; }
}