/* ============================================================
   OneClass - Hoja de estilos principal
   Login: gradiente Instagram/Facebook · Dashboard moderno
   ============================================================ */

:root {
    --oc-primary: #667eea;
    --oc-primary-dark: #5568d3;
    --oc-secondary: #764ba2;
    --oc-success: #10b981;
    --oc-warning: #f59e0b;
    --oc-danger: #ef4444;
    --oc-info: #3b82f6;
    --oc-bg: #f3f4f6;
    --oc-sidebar-bg: #1e293b;
    --oc-sidebar-text: #cbd5e1;
    --oc-sidebar-active: #667eea;
    --oc-text: #1f2937;
    --oc-muted: #6b7280;
    --oc-border: #e5e7eb;
    --oc-card-shadow: 0 1px 3px rgba(0,0,0,0.05), 0 1px 2px rgba(0,0,0,0.03);
}

* { box-sizing: border-box; }

body {
    font-family: 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--oc-bg);
    color: var(--oc-text);
    margin: 0;
    -webkit-font-smoothing: antialiased;
}

/* ============================================================
   LOGIN: estilo Instagram/Facebook con gradiente
   ============================================================ */
.oc-login-body {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
    background-size: 200% 200%;
    animation: oc-bg-animate 15s ease infinite;
    min-height: 100vh;
}

@@keyframes oc-bg-animate {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

.oc-login-wrapper {
    display: flex;
    min-height: 100vh;
}

/* Lateral con presentación de la marca */
.oc-login-side {
    flex: 1;
    align-items: center;
    justify-content: center;
    padding: 3rem;
}

.oc-login-hero {
    position: relative;
    color: #fff;
    max-width: 500px;
    text-align: center;
}

.oc-login-hero h1 {
    font-size: 3.5rem;
    font-weight: 800;
    margin: 1rem 0 0.5rem;
    text-shadow: 0 4px 20px rgba(0,0,0,0.2);
    letter-spacing: -1px;
}

.oc-login-hero p {
    font-size: 1.1rem;
    opacity: 0.95;
    line-height: 1.6;
}

.oc-login-logo {
    width: 100px;
    height: 100px;
    background: rgba(255,255,255,0.2);
    backdrop-filter: blur(10px);
    border-radius: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto;
    font-size: 3rem;
    box-shadow: 0 20px 50px rgba(0,0,0,0.2);
}

.oc-login-features {
    margin-top: 2rem;
    text-align: left;
    display: inline-block;
}

.oc-login-features div {
    margin: 0.6rem 0;
    font-size: 1rem;
}

.oc-login-features i {
    color: #4ade80;
    margin-right: 0.5rem;
}

/* Formulario lateral */
.oc-login-form-side {
    flex: 0 0 480px;
    background: #fff;
    padding: 3rem 2.5rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
    box-shadow: -10px 0 40px rgba(0,0,0,0.1);
}

@media (max-width: 991px) {
    .oc-login-form-side {
        flex: 1 1 100%;
        background: rgba(255,255,255,0.97);
        margin: 1rem;
        border-radius: 20px;
        max-width: 420px;
        align-self: center;
    }
}

.oc-login-card {
    width: 100%;
}

.oc-login-mobile-logo {
    text-align: center;
    margin-bottom: 1.5rem;
}

.oc-login-mobile-logo i {
    font-size: 3rem;
    background: linear-gradient(135deg, #667eea, #764ba2);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.oc-login-mobile-logo h2 {
    margin-top: 0.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, #667eea, #764ba2);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.oc-login-title {
    font-weight: 700;
    margin-bottom: 0.25rem;
    color: var(--oc-text);
}

.oc-login-subtitle {
    color: var(--oc-muted);
    margin-bottom: 2rem;
}

.oc-input-group {
    position: relative;
}

.oc-input-group > i:first-child {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--oc-muted);
    z-index: 2;
    pointer-events: none;
}

.oc-input-group .form-control {
    padding: 0.85rem 1rem 0.85rem 2.75rem;
    border-radius: 12px;
    border: 1.5px solid var(--oc-border);
    background: #fafafa;
    font-size: 0.95rem;
    transition: all 0.2s;
}

.oc-input-group .form-control:focus {
    background: #fff;
    border-color: var(--oc-primary);
    box-shadow: 0 0 0 4px rgba(102,126,234,0.1);
}

.oc-password-toggle {
    position: absolute;
    right: 0.5rem;
    top: 50%;
    transform: translateY(-50%);
    background: transparent;
    border: 0;
    color: var(--oc-muted);
    padding: 0.5rem;
    z-index: 2;
}

.oc-btn-login {
    width: 100%;
    padding: 0.85rem;
    margin-top: 1.5rem;
    background: linear-gradient(135deg, #667eea, #764ba2);
    border: 0;
    color: #fff;
    border-radius: 12px;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s;
    box-shadow: 0 4px 15px rgba(102,126,234,0.3);
}

.oc-btn-login:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(102,126,234,0.4);
}

.oc-login-divider {
    display: flex;
    align-items: center;
    margin: 1.5rem 0;
    color: var(--oc-muted);
    font-size: 0.85rem;
}

.oc-login-divider::before,
.oc-login-divider::after {
    content: "";
    flex: 1;
    height: 1px;
    background: var(--oc-border);
}

.oc-login-divider span {
    padding: 0 1rem;
}

.oc-login-footer {
    text-align: center;
    margin-top: 2rem;
    color: var(--oc-muted);
}

/* ============================================================
   LAYOUT DEL DASHBOARD: Sidebar + Topbar + Content
   ============================================================ */
.oc-app {
    display: flex;
    min-height: 100vh;
}

.oc-sidebar {
    width: 260px;
    background: var(--oc-sidebar-bg);
    color: var(--oc-sidebar-text);
    flex-shrink: 0;
    position: sticky;
    top: 0;
    height: 100vh;
    overflow-y: auto;
    transition: transform 0.3s;
    z-index: 100;
}

@media (max-width: 991px) {
    .oc-sidebar {
        position: fixed;
        transform: translateX(-100%);
    }
    body.oc-sidebar-open .oc-sidebar { transform: translateX(0); }
}

.oc-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1.5rem;
    color: #fff;
    font-size: 1.5rem;
    font-weight: 700;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.oc-brand i {
    color: var(--oc-primary);
    font-size: 1.8rem;
}

.oc-nav {
    padding: 1rem 0;
}

.oc-nav-section {
    padding: 0.75rem 1.5rem 0.5rem;
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: rgba(255,255,255,0.4);
    font-weight: 700;
}

.oc-nav-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.65rem 1.5rem;
    color: var(--oc-sidebar-text);
    text-decoration: none;
    transition: all 0.2s;
    border-left: 3px solid transparent;
}

.oc-nav-item:hover {
    background: rgba(255,255,255,0.05);
    color: #fff;
    border-left-color: var(--oc-primary);
}

.oc-nav-item.active {
    background: rgba(102,126,234,0.15);
    color: #fff;
    border-left-color: var(--oc-primary);
}

.oc-nav-item i {
    font-size: 1.1rem;
    width: 1.5rem;
    text-align: center;
}

/* MAIN */
.oc-main {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.oc-topbar {
    background: #fff;
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--oc-border);
    display: flex;
    align-items: center;
    gap: 1rem;
    position: sticky;
    top: 0;
    z-index: 50;
    box-shadow: 0 1px 3px rgba(0,0,0,0.04);
}

.oc-page-title {
    font-size: 1.1rem;
    font-weight: 600;
    flex: 1;
}

.oc-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    text-transform: uppercase;
}

.oc-avatar-lg {
    width: 90px;
    height: 90px;
    margin: 0 auto;
    border-radius: 50%;
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    font-weight: 700;
    text-transform: uppercase;
}

.oc-content {
    padding: 1.5rem;
    flex: 1;
}

.oc-page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}

.oc-page-header h4 {
    margin: 0;
    font-weight: 700;
}

/* Welcome Banner */
.oc-welcome {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: #fff;
    padding: 1.5rem;
    border-radius: 16px;
    margin-bottom: 1.5rem;
    box-shadow: var(--oc-card-shadow);
}

.oc-badge-rol {
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: #fff;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-weight: 600;
}

/* ============================================================
   KPI CARDS
   ============================================================ */
.oc-kpi-card {
    background: #fff;
    padding: 1.25rem;
    border-radius: 14px;
    box-shadow: var(--oc-card-shadow);
    display: flex;
    align-items: center;
    gap: 1rem;
    height: 100%;
    border-left: 4px solid var(--oc-primary);
    transition: transform 0.2s;
}

.oc-kpi-card:hover { transform: translateY(-2px); }

.oc-kpi-icon {
    width: 56px;
    height: 56px;
    border-radius: 14px;
    background: rgba(102,126,234,0.12);
    color: var(--oc-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.6rem;
    flex-shrink: 0;
}

.oc-kpi-value {
    font-size: 1.75rem;
    font-weight: 700;
    line-height: 1;
}

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

.oc-kpi-blue { border-left-color: #3b82f6; }
.oc-kpi-blue .oc-kpi-icon { background: rgba(59,130,246,0.12); color: #3b82f6; }
.oc-kpi-green { border-left-color: #10b981; }
.oc-kpi-green .oc-kpi-icon { background: rgba(16,185,129,0.12); color: #10b981; }
.oc-kpi-purple { border-left-color: #8b5cf6; }
.oc-kpi-purple .oc-kpi-icon { background: rgba(139,92,246,0.12); color: #8b5cf6; }
.oc-kpi-orange { border-left-color: #f59e0b; }
.oc-kpi-orange .oc-kpi-icon { background: rgba(245,158,11,0.12); color: #f59e0b; }

/* ============================================================
   CARDS
   ============================================================ */
.oc-card {
    border: 0;
    border-radius: 14px;
    box-shadow: var(--oc-card-shadow);
    background: #fff;
}

.oc-card .card-title {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--oc-text);
}

.oc-card .card-title i {
    color: var(--oc-primary);
    margin-right: 0.5rem;
}

.oc-card .card-footer {
    background: #fafafa;
    border-top: 1px solid var(--oc-border);
    padding: 1rem 1.25rem;
    border-radius: 0 0 14px 14px;
}

/* ============================================================
   TABLAS
   ============================================================ */
.oc-table {
    margin-bottom: 0;
}

.oc-table thead th {
    background: #f9fafb;
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--oc-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-bottom: 2px solid var(--oc-border);
    padding: 0.85rem 1rem;
}

.oc-table tbody td {
    padding: 0.85rem 1rem;
    vertical-align: middle;
    border-color: #f3f4f6;
}

.oc-table tbody tr:hover { background: #fafbfc; }

/* ============================================================
   TABS estilo formulario clásico (como las imágenes)
   ============================================================ */
.oc-tabs {
    background: #f8f9fa;
    border-bottom: 1px solid #d1d5db;
    padding: 0 0.5rem;
    margin-bottom: 0;
}

.oc-tabs .nav-link {
    color: #4b5563;
    border-radius: 8px 8px 0 0;
    border: 1px solid transparent;
    padding: 0.6rem 1rem;
    font-weight: 500;
}

.oc-tabs .nav-link.active {
    background: #fff;
    border-color: #d1d5db #d1d5db #fff;
    color: var(--oc-text);
    font-weight: 600;
}

.oc-subtabs {
    background: #f3f4f6;
    border-bottom: 1px solid #d1d5db;
    padding: 0 0.25rem;
}

.oc-subtabs .nav-link {
    font-size: 0.85rem;
    padding: 0.4rem 0.8rem;
    border-radius: 6px 6px 0 0;
    color: #6b7280;
}

.oc-subtabs .nav-link.active {
    background: #fff;
    color: var(--oc-primary);
    border-color: #d1d5db #d1d5db #fff;
}

.oc-tab-content {
    background: #fff;
    border: 1px solid #d1d5db;
    border-top: 0;
    border-radius: 0 0 12px 12px;
    padding: 1.25rem;
    margin-bottom: 1rem;
}

.oc-fieldset {
    border: 1px solid #d1d5db;
    border-radius: 8px;
    padding: 1rem;
    margin-bottom: 1rem;
    background: #fafafa;
}

.oc-fieldset legend {
    width: auto;
    padding: 0 0.5rem;
    background: #fff;
    border: 1px solid #d1d5db;
    border-radius: 4px;
    font-size: 0.9rem;
    font-weight: 600;
    color: #374151;
    margin-bottom: 0.5rem;
}

.oc-fieldset label {
    font-size: 0.85rem;
    margin-bottom: 0.15rem;
    color: #4b5563;
}

.oc-fieldset .form-control,
.oc-fieldset .form-select {
    font-size: 0.9rem;
}

/* ============================================================
   TOOLBAR ESTILO BARRA SUPERIOR (como Nuevo/Salvar/Editar)
   ============================================================ */
.oc-toolbar {
    display: flex;
    gap: 0.5rem;
    align-items: stretch;
    flex-wrap: wrap;
    padding: 0.5rem;
    background: #f3f4f6;
    border: 1px solid #d1d5db;
    border-radius: 8px;
}

.oc-tool-btn {
    background: #fff;
    border: 1px solid #d1d5db;
    border-radius: 6px;
    padding: 0.4rem 0.75rem;
    color: #374151;
    text-decoration: none;
    display: flex;
    flex-direction: column;
    align-items: center;
    min-width: 65px;
    font-size: 0.7rem;
    transition: all 0.2s;
}

.oc-tool-btn:hover {
    background: var(--oc-primary);
    color: #fff;
    border-color: var(--oc-primary);
}

.oc-tool-btn i {
    font-size: 1.2rem;
    margin-bottom: 0.15rem;
}

/* ============================================================
   DASHBOARD - HORARIOS DEL DÍA
   ============================================================ */
.oc-horarios-list {
    max-height: 280px;
    overflow-y: auto;
}

.oc-horario-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.75rem 0;
    border-bottom: 1px solid #f3f4f6;
}

.oc-horario-item:last-child { border-bottom: 0; }

.oc-horario-time {
    background: rgba(102,126,234,0.1);
    color: var(--oc-primary);
    padding: 0.4rem 0.75rem;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.85rem;
    min-width: 110px;
    text-align: center;
}

/* ============================================================
   CALENDARIO SEMANAL
   ============================================================ */
.oc-calendar td {
    height: 60px;
    vertical-align: top;
    padding: 0.25rem;
}

.oc-cal-item {
    background: linear-gradient(135deg, rgba(102,126,234,0.1), rgba(118,75,162,0.1));
    border-left: 3px solid var(--oc-primary);
    padding: 0.4rem;
    border-radius: 6px;
    margin-bottom: 0.25rem;
}

/* ============================================================
   PDF VIEWER / EXPEDIENTE
   ============================================================ */
.oc-pdf-viewer {
    border: 1px solid #d1d5db;
    border-radius: 8px;
    background: #f3f4f6;
    min-height: 400px;
}

/* ============================================================
   UTILIDADES
   ============================================================ */
.d-none-empty:empty { display: none !important; }

.oc-search-form .input-group { max-width: 500px; }

.alert { border-radius: 10px; border: 0; }
.btn { border-radius: 8px; }
.form-control, .form-select { border-radius: 8px; }

/* Botones primarios con gradiente */
.btn-primary {
    background: linear-gradient(135deg, #667eea, #764ba2);
    border-color: var(--oc-primary);
}

.btn-primary:hover {
    background: linear-gradient(135deg, #5568d3, #6a3f8f);
    border-color: var(--oc-primary-dark);
}

/* Scrollbar fino */
.oc-sidebar::-webkit-scrollbar { width: 6px; }
.oc-sidebar::-webkit-scrollbar-track { background: transparent; }
.oc-sidebar::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.1); border-radius: 3px; }