/* Admin Panel Styles */

:root {
    --primary: #ff4d00;
    --primary-dark: #cc3d00;
    --success: #28a745;
    --warning: #ffc107;
    --danger: #dc3545;
    --info: #17a2b8;
    --dark: #0a0a0a;
    --dark-secondary: #151515;
    --dark-tertiary: #1f1f1f;
    --light: #ffffff;
    --light-secondary: #b0b0b0;
    --gray: #2a2a2a;
    --border: #333;
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Roboto', sans-serif;
    background: var(--dark);
    color: var(--light);
    line-height: 1.6;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Oswald', sans-serif;
    font-weight: 700;
}

a {
    text-decoration: none;
    color: inherit;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.btn {
    display: inline-block;
    padding: 12px 24px;
    font-family: 'Oswald', sans-serif;
    font-size: 14px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    border-radius: 4px;
    cursor: pointer;
    transition: var(--transition);
    border: 2px solid transparent;
    background: var(--primary);
    color: var(--light);
}

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

.btn-sm {
    padding: 8px 16px;
    font-size: 12px;
}

.btn-outline {
    background: transparent;
    border-color: var(--light);
}

.btn-danger {
    background: var(--danger);
    border-color: var(--danger);
}

.btn-danger:hover {
    background: #c82333;
    border-color: #c82333;
}

/* Login Page */
.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--dark) 0%, var(--dark-secondary) 100%);
    padding: 20px;
}

.login-box {
    background: var(--dark-secondary);
    padding: 50px;
    border-radius: 8px;
    width: 100%;
    max-width: 400px;
    text-align: center;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
}

.login-header {
    margin-bottom: 40px;
}

.login-header i {
    font-size: 48px;
    color: var(--primary);
    margin-bottom: 16px;
}

.login-header h1 {
    font-size: 32px;
    margin-bottom: 8px;
}

.login-header p {
    color: var(--light-secondary);
}

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

.form-group label {
    display: block;
    font-family: 'Oswald', sans-serif;
    font-size: 14px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 8px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 14px;
    background: var(--dark-tertiary);
    border: 2px solid transparent;
    border-radius: 4px;
    color: var(--light);
    font-family: 'Roboto', sans-serif;
    font-size: 16px;
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
}

.login-box .btn {
    width: 100%;
    margin-top: 10px;
}

.login-hint {
    margin-top: 20px;
    font-size: 14px;
    color: var(--light-secondary);
}

/* OTP Form Styles */
.otp-info {
    text-align: center;
    padding: 15px;
    margin-bottom: 15px;
    background: var(--dark-tertiary);
    border-radius: 4px;
}

.otp-info i {
    font-size: 24px;
    color: var(--primary);
    margin-bottom: 8px;
}

.otp-info p {
    font-size: 14px;
    color: var(--light-secondary);
}

#otpForm .btn {
    width: 100%;
    margin-top: 10px;
}

#otpForm .btn-secondary {
    background: var(--dark-tertiary);
    border-color: var(--border);
    color: var(--light);
    margin-top: 8px;
}

#otpForm .btn-secondary:hover {
    background: var(--gray);
    border-color: var(--border);
}

#otpForm .btn-link {
    background: transparent;
    border: none;
    color: var(--light-secondary);
    font-size: 14px;
    margin-top: 15px;
    width: auto;
    padding: 8px;
}

#otpForm .btn-link:hover {
    color: var(--primary);
    background: transparent;
}

.back-link {
    display: inline-block;
    margin-top: 20px;
    color: var(--light-secondary);
    font-size: 14px;
    transition: var(--transition);
}

.back-link:hover {
    color: var(--primary);
}

/* Admin Wrapper */
.admin-wrapper {
    display: flex;
    min-height: 100vh;
}

/* Sidebar */
.sidebar {
    width: 260px;
    background: var(--dark-secondary);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    position: fixed;
    height: 100vh;
    z-index: 100;
    transition: var(--transition);
}

.sidebar-header {
    padding: 20px;
    border-bottom: 1px solid var(--border);
}

.sidebar .logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: 'Oswald', sans-serif;
    font-size: 24px;
    font-weight: 700;
}

.sidebar .logo i {
    color: var(--primary);
    font-size: 28px;
}

.sidebar-nav {
    flex: 1;
    padding: 20px 0;
    overflow-y: auto;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 20px;
    color: var(--light-secondary);
    transition: var(--transition);
    border-left: 3px solid transparent;
}

.nav-item:hover,
.nav-item.active {
    background: var(--dark-tertiary);
    color: var(--light);
    border-left-color: var(--primary);
}

.nav-item i {
    width: 20px;
    text-align: center;
}

.nav-item .badge {
    margin-left: auto;
    background: var(--primary);
    color: var(--light);
    padding: 2px 8px;
    border-radius: 10px;
    font-size: 12px;
}

.sidebar-footer {
    padding: 20px;
    border-top: 1px solid var(--border);
}

.logout-btn {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--light-secondary);
    padding: 12px;
    border-radius: 4px;
    transition: var(--transition);
}

.logout-btn:hover {
    background: var(--danger);
    color: var(--light);
}

/* Main Content */
.main-content {
    flex: 1;
    margin-left: 260px;
    padding: 20px;
    transition: var(--transition);
}

/* Top Bar */
.top-bar {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 20px;
    background: var(--dark-secondary);
    border-radius: 8px;
    margin-bottom: 30px;
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--light);
    font-size: 24px;
    cursor: pointer;
}

.top-bar h2 {
    flex: 1;
    font-size: 24px;
}

.top-bar-right {
    display: flex;
    align-items: center;
    gap: 12px;
}

.admin-name {
    color: var(--light-secondary);
}

.admin-avatar {
    width: 40px;
    height: 40px;
    background: var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: 'Oswald', sans-serif;
    font-weight: 700;
}

/* Content Sections */
.content-section {
    display: none;
}

.content-section.active {
    display: block;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
}

.section-header h3 {
    font-size: 28px;
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-bottom: 30px;
}

.stat-card {
    background: var(--dark-secondary);
    padding: 24px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    gap: 16px;
}

.stat-icon {
    width: 60px;
    height: 60px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.stat-icon i {
    font-size: 24px;
    color: var(--light);
}

.stat-info h3 {
    font-size: 32px;
    margin-bottom: 4px;
}

.stat-info p {
    color: var(--light-secondary);
    font-size: 14px;
}

/* Dashboard Grid */
.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.dashboard-card {
    background: var(--dark-secondary);
    border-radius: 8px;
    overflow: hidden;
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
    border-bottom: 1px solid var(--border);
}

.card-header h3 {
    font-size: 18px;
}

.card-body {
    padding: 20px;
}

/* Data Tables */
.data-table {
    width: 100%;
    border-collapse: collapse;
}

.data-table th,
.data-table td {
    padding: 14px;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

.data-table th {
    font-family: 'Oswald', sans-serif;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--light-secondary);
    background: var(--dark-tertiary);
}

.data-table td {
    font-size: 14px;
}

.data-table tr:hover {
    background: var(--dark-tertiary);
}

.action-btns {
    display: flex;
    gap: 8px;
}

.action-btn {
    width: 32px;
    height: 32px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.action-btn.edit {
    background: var(--info);
    color: var(--light);
}

.action-btn.delete {
    background: var(--danger);
    color: var(--light);
}

.action-btn:hover {
    opacity: 0.8;
}

/* Classes Grid */
.classes-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.class-admin-card {
    background: var(--dark-secondary);
    border-radius: 8px;
    overflow: hidden;
    transition: var(--transition);
}

.class-admin-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.class-admin-image {
    height: 150px;
    background: linear-gradient(135deg, var(--gray) 0%, var(--dark) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
}

.class-admin-image i {
    font-size: 48px;
    color: var(--primary);
    opacity: 0.5;
}

.class-admin-content {
    padding: 20px;
}

.class-admin-content h4 {
    font-size: 20px;
    margin-bottom: 8px;
}

.class-admin-content p {
    color: var(--light-secondary);
    font-size: 14px;
    margin-bottom: 12px;
}

.class-meta {
    display: flex;
    gap: 16px;
    font-size: 12px;
    color: var(--light-secondary);
    margin-bottom: 16px;
}

.class-meta span {
    display: flex;
    align-items: center;
    gap: 4px;
}

/* Trainers Grid */
.trainers-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.trainer-admin-card {
    background: var(--dark-secondary);
    border-radius: 8px;
    overflow: hidden;
    text-align: center;
}

.trainer-admin-image {
    height: 180px;
    background: linear-gradient(135deg, var(--gray) 0%, var(--dark) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
}

.trainer-admin-image i {
    font-size: 64px;
    color: var(--light-secondary);
    opacity: 0.3;
}

.trainer-admin-info {
    padding: 20px;
}

.trainer-admin-info h4 {
    font-size: 18px;
    margin-bottom: 4px;
}

.trainer-specialty {
    color: var(--primary);
    font-size: 14px;
    margin-bottom: 8px;
}

.trainer-experience {
    color: var(--light-secondary);
    font-size: 12px;
}

/* Messages List */
.messages-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.message-item {
    background: var(--dark-secondary);
    padding: 24px;
    border-radius: 8px;
    border-left: 4px solid var(--primary);
}

.message-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 12px;
}

.message-header h4 {
    font-size: 18px;
}

.message-date {
    color: var(--light-secondary);
    font-size: 12px;
}

.message-email {
    color: var(--primary);
    font-size: 14px;
    margin-bottom: 8px;
}

.message-subject {
    font-weight: 600;
    margin-bottom: 8px;
}

.message-body {
    color: var(--light-secondary);
    line-height: 1.6;
}

.message-actions {
    margin-top: 16px;
    display: flex;
    gap: 12px;
}

/* Settings */
.settings-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.settings-card {
    background: var(--dark-secondary);
    padding: 30px;
    border-radius: 8px;
}

.settings-card h3 {
    font-size: 22px;
    margin-bottom: 24px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border);
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    z-index: 1000;
    align-items: center;
    justify-content: center;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: var(--dark-secondary);
    border-radius: 8px;
    width: 100%;
    max-width: 500px;
    max-height: 90vh;
    overflow-y: auto;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
    border-bottom: 1px solid var(--border);
}

.modal-header h3 {
    font-size: 22px;
}

.modal-close {
    background: none;
    border: none;
    color: var(--light-secondary);
    font-size: 28px;
    cursor: pointer;
    transition: var(--transition);
}

.modal-close:hover {
    color: var(--light);
}

.modal-content form {
    padding: 20px;
}

/* Card */
.card {
    background: var(--dark-secondary);
    border-radius: 8px;
    overflow: hidden;
}

/* Responsive */
@media (max-width: 1024px) {
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .dashboard-grid {
        grid-template-columns: 1fr;
    }
    
    .classes-grid,
    .trainers-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .settings-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .sidebar {
        left: -260px;
    }
    
    .sidebar.active {
        left: 0;
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .menu-toggle {
        display: block;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .classes-grid,
    .trainers-grid {
        grid-template-columns: 1fr;
    }
    
    .top-bar h2 {
        font-size: 18px;
    }
}