/* Custom Admin Backoffice Design System: Colegio de Kinesiólogos SDE */
@import url('https://fonts.googleapis.com/css2?family=Nunito+Sans:wght@400;600;700;800&family=Open+Sans:wght@400;600;700&family=Raleway:wght@500;600;700&display=swap');

:root {
    --primary: #8C52FF;
    --primary-hover: #753bf0;
    --secondary: #3FAFB6;
    --tertiary: #5842AF;
    --dark: #1A2229;
    --light-bg: #F4F6FA;
    --white: #FFFFFF;
    --grey-100: #E5E7EB;
    --grey-200: #D1D5DB;
    --grey-500: #6B7280;
    --text-main: #374151;
    --success: #10B981;
    --danger: #EF4444;
    --warning: #F59E0B;
    
    --font-heading: 'Nunito Sans', sans-serif;
    --font-body: 'Open Sans', sans-serif;
    --font-label: 'Raleway', sans-serif;
    
    --sidebar-width: 260px;
    --shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
    --radius: 12px;
    --transition: all 0.3s ease;
}

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

body {
    font-family: var(--font-body);
    background-color: var(--light-bg);
    color: var(--text-main);
    display: flex;
    min-height: 100vh;
}

/* Sidebar Styling */
.sidebar {
    width: var(--sidebar-width);
    background-color: var(--dark);
    color: var(--white);
    position: fixed;
    height: 100vh;
    left: 0;
    top: 0;
    display: flex;
    flex-direction: column;
    z-index: 100;
    transition: var(--transition);
}

.sidebar-brand {
    padding: 25px 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.sidebar-title {
    font-family: var(--font-heading);
    font-size: 18px;
    font-weight: 800;
    color: var(--white);
}

.sidebar-subtitle {
    font-size: 11px;
    color: var(--secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-top: 3px;
}

.sidebar-menu {
    list-style: none;
    padding: 20px 10px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    flex-grow: 1;
}

.sidebar-item a {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 12px 15px;
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    font-family: var(--font-label);
    font-weight: 500;
    font-size: 15px;
    border-radius: 8px;
    transition: var(--transition);
}

.sidebar-item a:hover,
.sidebar-item.active a {
    color: var(--white);
    background-color: rgba(140, 82, 255, 0.15);
}

.sidebar-item.active a {
    background-color: var(--primary);
    box-shadow: 0 4px 12px rgba(140, 82, 255, 0.35);
}

.sidebar-footer {
    padding: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.logout-btn {
    display: flex;
    align-items: center;
    gap: 12px;
    color: rgba(255, 255, 255, 0.6);
    background: transparent;
    border: none;
    font-family: var(--font-label);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    width: 100%;
    padding: 10px;
    border-radius: 6px;
    transition: var(--transition);
}

.logout-btn:hover {
    color: var(--danger);
    background-color: rgba(239, 68, 68, 0.1);
}

/* Main Content Wrapper */
.main-wrapper {
    margin-left: var(--sidebar-width);
    flex-grow: 1;
    padding: 40px;
    min-height: 100vh;
}

.main-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 35px;
}

.page-title {
    font-size: 28px;
    color: var(--dark);
}

.user-badge {
    background-color: var(--white);
    padding: 8px 16px;
    border-radius: 30px;
    display: flex;
    align-items: center;
    gap: 10px;
    box-shadow: var(--shadow);
    font-size: 14px;
    font-weight: 600;
}

.user-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background-color: var(--primary);
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 14px;
}

/* Dashboard Cards Grid */
.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
    margin-bottom: 40px;
}

.dashboard-card {
    background-color: var(--white);
    padding: 25px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    display: flex;
    justify-content: space-between;
    align-items: center;
    border: 1px solid var(--grey-100);
}

.card-info h3 {
    font-size: 14px;
    color: var(--grey-500);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 5px;
}

.card-value {
    font-size: 32px;
    font-weight: 800;
    color: var(--dark);
}

.card-icon {
    width: 55px;
    height: 55px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
}

.icon-courses { background-color: rgba(140, 82, 255, 0.1); color: var(--primary); }
.icon-messages { background-color: rgba(63, 175, 182, 0.1); color: var(--secondary); }
.icon-professionals { background-color: rgba(88, 66, 175, 0.1); color: var(--tertiary); }

/* Message Panel */
.panel {
    background-color: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 30px;
    border: 1px solid var(--grey-100);
    margin-bottom: 40px;
}

.panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 25px;
}

.panel-title {
    font-size: 20px;
    color: var(--dark);
}

/* Custom Table Styling */
.table-responsive {
    width: 100%;
    overflow-x: auto;
}

.table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
}

.table th {
    padding: 15px;
    border-bottom: 2px solid var(--grey-100);
    color: var(--grey-500);
    font-family: var(--font-label);
    font-size: 14px;
    font-weight: 700;
}

.table td {
    padding: 15px;
    border-bottom: 1px solid var(--grey-100);
    font-size: 14px;
    vertical-align: middle;
}

.table tr:last-child td {
    border-bottom: none;
}

/* Badges & Actions */
.badge {
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    display: inline-block;
}

.badge-unread { background-color: rgba(245, 158, 11, 0.1); color: var(--warning); }
.badge-read { background-color: rgba(16, 185, 129, 0.1); color: var(--success); }

.badge-active { background-color: rgba(16, 185, 129, 0.1); color: var(--success); }
.badge-proximamente { background-color: rgba(140, 82, 255, 0.1); color: var(--primary); }
.badge-finalizado { background-color: rgba(107, 114, 128, 0.1); color: var(--grey-500); }
.badge-suspendido { background-color: rgba(239, 68, 68, 0.1); color: var(--danger); }

.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    border-radius: 6px;
    cursor: pointer;
    font-family: var(--font-label);
    font-weight: 600;
    font-size: 13px;
    border: none;
    text-decoration: none;
    transition: var(--transition);
}

.btn-primary {
    background-color: var(--primary);
    color: var(--white);
}

.btn-primary:hover {
    background-color: var(--primary-hover);
}

.btn-sm {
    padding: 6px 12px;
    font-size: 12px;
}

.btn-danger { background-color: rgba(239, 68, 68, 0.1); color: var(--danger); }
.btn-danger:hover { background-color: var(--danger); color: var(--white); }

.btn-edit { background-color: rgba(63, 175, 182, 0.1); color: var(--secondary); }
.btn-edit:hover { background-color: var(--secondary); color: var(--white); }

.btn-view { background-color: rgba(140, 82, 255, 0.1); color: var(--primary); }
.btn-view:hover { background-color: var(--primary); color: var(--white); }

/* Forms CRUD Styling */
.form-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group.full-width {
    grid-column: span 2;
}

.form-group label {
    display: block;
    font-family: var(--font-label);
    font-size: 13px;
    font-weight: 700;
    margin-bottom: 8px;
}

.form-control {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--grey-200);
    background-color: var(--white);
    border-radius: 8px;
    font-family: var(--font-body);
    font-size: 14px;
    color: var(--text-main);
    transition: var(--transition);
}

.form-control:focus {
    border-color: var(--primary);
    outline: none;
    box-shadow: 0 0 0 3px rgba(140, 82, 255, 0.15);
}

textarea.form-control {
    resize: vertical;
    min-height: 120px;
}

.form-actions {
    display: flex;
    gap: 15px;
    margin-top: 30px;
    border-top: 1px solid var(--grey-100);
    padding-top: 20px;
}

/* Message View Details */
.msg-meta {
    background-color: var(--light-bg);
    padding: 20px;
    border-radius: 8px;
    margin-bottom: 25px;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
}

.meta-item {
    font-size: 14px;
}

.meta-item strong {
    color: var(--dark);
    display: block;
    font-family: var(--font-label);
    font-size: 12px;
    text-transform: uppercase;
    color: var(--grey-500);
}

.msg-body {
    font-size: 15px;
    line-height: 1.7;
    white-space: pre-wrap;
    padding: 10px;
}

/* Course Upload Image Preview */
.image-preview {
    width: 120px;
    height: 120px;
    border-radius: 8px;
    overflow: hidden;
    margin-top: 10px;
    border: 2px dashed var(--grey-200);
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--light-bg);
}

.image-preview img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Alert Notifications */
.alert {
    padding: 15px 20px;
    border-radius: 8px;
    margin-bottom: 25px;
    font-size: 14px;
    font-weight: 500;
}

.alert-success {
    background-color: rgba(16, 185, 129, 0.15);
    color: #065F46;
    border: 1px solid rgba(16, 185, 129, 0.2);
}

/* Auth Login Styling */
.auth-wrapper {
    width: 100%;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: radial-gradient(circle at 10% 20%, rgba(240, 235, 255, 0.7) 0%, rgba(230, 248, 249, 0.6) 90%);
}

.auth-card {
    width: 100%;
    max-width: 420px;
    background-color: var(--white);
    padding: 40px;
    border-radius: 16px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.5);
    backdrop-filter: blur(10px);
}

.auth-header {
    text-align: center;
    margin-bottom: 30px;
}

.auth-logo {
    font-family: var(--font-heading);
    font-size: 24px;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
}

.auth-subtitle {
    font-size: 13px;
    color: var(--grey-500);
    margin-top: 5px;
}

/* Responsive Admin */
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
    }
    .main-wrapper {
        margin-left: 0;
        padding: 20px;
    }
    .dashboard-grid {
        grid-template-columns: 1fr;
    }
    .form-grid {
        grid-template-columns: 1fr;
    }
    .form-group.full-width {
        grid-column: span 1;
    }
}