/* TuuSoft Gym Management System - Modern Professional Design */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

:root {
    --primary-color: #2563eb;
    --primary-dark: #1d4ed8;
    --primary-light: #3b82f6;
    --secondary-color: #f8fafc;
    --success-color: #10b981;
    --danger-color: #ef4444;
    --warning-color: #f59e0b;
    --info-color: #06b6d4;
    --dark-color: #1e293b;
    --light-color: #f1f5f9;
    --border-color: #e2e8f0;
    --text-primary: #0f172a;
    --text-secondary: #64748b;
    --text-muted: #94a3b8;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    --radius: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    color: var(--text-primary);
    line-height: 1.6;
    font-size: 14px;
    overflow-x: hidden;
}

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

::-webkit-scrollbar-track {
    background: var(--light-color);
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

/* Sidebar Styles */
.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    width: 280px;
    background: linear-gradient(180deg, #1e293b 0%, #0f172a 100%);
    color: white;
    z-index: 1000;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: var(--shadow-xl);
    border-right: 1px solid rgba(255, 255, 255, 0.1);
}

.sidebar.collapsed {
    transform: translateX(-280px);
}

.sidebar-header {
    padding: 2rem 1.5rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
}

.sidebar-header h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0;
    background: linear-gradient(135deg, #60a5fa, #34d399);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.sidebar-header p {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.7);
    margin: 0.25rem 0 0 0;
    font-weight: 400;
}

.sidebar-menu {
    list-style: none;
    padding: 1rem 0;
    margin: 0;
}

.sidebar-menu li {
    margin: 0.25rem 0;
}

.sidebar-menu a {
    display: flex;
    align-items: center;
    padding: 0.875rem 1.5rem;
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: all 0.2s ease;
    border-radius: 0;
    position: relative;
    font-weight: 500;
}

.sidebar-menu a:hover {
    background: rgba(255, 255, 255, 0.1);
    color: white;
    transform: translateX(4px);
}

.sidebar-menu a.active {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: white;
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

.sidebar-menu a.active::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    background: linear-gradient(180deg, #60a5fa, #34d399);
}

.sidebar-menu i {
    margin-right: 0.75rem;
    width: 20px;
    text-align: center;
    font-size: 1.1rem;
}

/* Main Content */
.main-content {
    margin-left: 280px;
    min-height: 100vh;
    transition: margin-left 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    background: transparent;
}

.main-content.expanded {
    margin-left: 0;
}

/* Top Navigation */
.top-nav {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    padding: 1rem 2rem;
    box-shadow: var(--shadow);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-toggle {
    background: none;
    border: none;
    font-size: 1.25rem;
    cursor: pointer;
    color: var(--text-primary);
    padding: 0.5rem;
    border-radius: var(--radius);
    transition: all 0.2s ease;
}

.nav-toggle:hover {
    background: var(--light-color);
    color: var(--primary-color);
}

.user-menu {
    position: relative;
}

.user-menu button {
    background: white;
    border: 1px solid var(--border-color);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all 0.2s ease;
    box-shadow: var(--shadow-sm);
    font-weight: 500;
}

.user-menu button:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-md);
    transform: translateY(-1px);
}

.user-dropdown {
    display: none;
    position: absolute;
    top: calc(100% + 0.5rem);
    right: 0;
    background: white;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    min-width: 220px;
    z-index: 1001;
    overflow: hidden;
}

.user-dropdown.show {
    display: block;
    animation: fadeInUp 0.2s ease;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.user-dropdown a {
    display: flex;
    align-items: center;
    padding: 0.875rem 1rem;
    color: var(--text-primary);
    text-decoration: none;
    border-bottom: 1px solid var(--border-color);
    transition: all 0.2s ease;
    font-weight: 500;
}

.user-dropdown a:last-child {
    border-bottom: none;
}

.user-dropdown a:hover {
    background: var(--light-color);
    color: var(--primary-color);
}

/* Content Area */
.content {
    padding: 2rem;
    max-width: 1400px;
    margin: 0 auto;
}

.page-header {
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.page-title {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0 0 0.5rem 0;
    display: flex;
    align-items: center;
}

.page-title i {
    margin-right: 0.75rem;
    color: var(--primary-color);
}

.breadcrumb {
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
}

/* Cards */
.card {
    background: white;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow);
    margin-bottom: 2rem;
    border: 1px solid var(--border-color);
    overflow: hidden;
    transition: all 0.2s ease;
}

.card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.card-header {
    padding: 1.5rem 2rem;
    border-bottom: 1px solid var(--border-color);
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    font-weight: 600;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.card-header h5 {
    margin: 0;
    font-size: 1.125rem;
    font-weight: 600;
    display: flex;
    align-items: center;
}

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

.card-body {
    padding: 2rem;
}

.card-footer {
    padding: 1rem 2rem;
    background: var(--light-color);
    border-top: 1px solid var(--border-color);
}

/* Stats Cards */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: white;
    padding: 2rem;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.stat-icon {
    width: 70px;
    height: 70px;
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    margin-right: 1.5rem;
    position: relative;
    overflow: hidden;
}

.stat-icon::before {
    content: '';
    position: absolute;
    inset: 0;
    background: inherit;
    opacity: 0.1;
}

.stat-icon.primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: white;
}

.stat-icon.success {
    background: linear-gradient(135deg, var(--success-color), #34d399);
    color: white;
}

.stat-icon.warning {
    background: linear-gradient(135deg, var(--warning-color), #fbbf24);
    color: white;
}

.stat-icon.danger {
    background: linear-gradient(135deg, var(--danger-color), #f87171);
    color: white;
}

.stat-icon.info {
    background: linear-gradient(135deg, var(--info-color), #22d3ee);
    color: white;
}

.stat-content h3 {
    margin: 0 0 0.25rem 0;
    font-size: 2.25rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1;
}

.stat-content p {
    margin: 0;
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
}

/* Tables */
.table-responsive {
    overflow-x: auto;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.table {
    width: 100%;
    border-collapse: collapse;
    background: white;
    margin: 0;
}

.table th,
.table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
    font-weight: 500;
}

.table th {
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.025em;
}

.table tbody tr {
    transition: all 0.2s ease;
}

.table tbody tr:hover {
    background: var(--light-color);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.625rem 1.25rem;
    border: none;
    border-radius: var(--radius);
    text-decoration: none;
    cursor: pointer;
    font-size: 0.875rem;
    font-weight: 600;
    transition: all 0.2s ease;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.2), rgba(255, 255, 255, 0));
    opacity: 0;
    transition: opacity 0.2s ease;
}

.btn:hover::before {
    opacity: 1;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: white;
    box-shadow: var(--shadow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-success {
    background: linear-gradient(135deg, var(--success-color), #34d399);
    color: white;
    box-shadow: var(--shadow);
}

.btn-danger {
    background: linear-gradient(135deg, var(--danger-color), #f87171);
    color: white;
    box-shadow: var(--shadow);
}

.btn-warning {
    background: linear-gradient(135deg, var(--warning-color), #fbbf24);
    color: white;
    box-shadow: var(--shadow);
}

.btn-info {
    background: linear-gradient(135deg, var(--info-color), #22d3ee);
    color: white;
    box-shadow: var(--shadow);
}

.btn-secondary {
    background: linear-gradient(135deg, #6b7280, #9ca3af);
    color: white;
    box-shadow: var(--shadow);
}

.btn-outline-primary {
    background: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

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

.btn:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-sm {
    padding: 0.375rem 0.75rem;
    font-size: 0.8rem;
}

.btn-lg {
    padding: 0.875rem 2rem;
    font-size: 1rem;
}

/* Forms */
.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.875rem;
}

.form-control {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 2px solid var(--border-color);
    border-radius: var(--radius);
    font-size: 0.875rem;
    transition: all 0.2s ease;
    background: white;
    color: var(--text-primary);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-select {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='m6 8 4 4 4-4'/%3e%3c/svg%3e");
    background-position: right 0.75rem center;
    background-repeat: no-repeat;
    background-size: 1.5em 1.5em;
    padding-right: 3rem;
}

/* Badges */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.375rem 0.75rem;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: var(--radius);
    text-transform: uppercase;
    letter-spacing: 0.025em;
}

.badge-success {
    background: linear-gradient(135deg, var(--success-color), #34d399);
    color: white;
}

.badge-danger {
    background: linear-gradient(135deg, var(--danger-color), #f87171);
    color: white;
}

.badge-warning {
    background: linear-gradient(135deg, var(--warning-color), #fbbf24);
    color: white;
}

.badge-info {
    background: linear-gradient(135deg, var(--info-color), #22d3ee);
    color: white;
}

.badge-secondary {
    background: linear-gradient(135deg, #6b7280, #9ca3af);
    color: white;
}

/* Alerts */
.alert {
    padding: 1rem 1.5rem;
    border-radius: var(--radius-lg);
    margin-bottom: 1.5rem;
    border: 1px solid;
    display: flex;
    align-items: center;
    font-weight: 500;
}

.alert i {
    margin-right: 0.75rem;
    font-size: 1.125rem;
}

.alert-success {
    background: linear-gradient(135deg, #ecfdf5, #d1fae5);
    color: #065f46;
    border-color: #a7f3d0;
}

.alert-danger {
    background: linear-gradient(135deg, #fef2f2, #fecaca);
    color: #991b1b;
    border-color: #fca5a5;
}

.alert-warning {
    background: linear-gradient(135deg, #fffbeb, #fed7aa);
    color: #92400e;
    border-color: #fcd34d;
}

.alert-info {
    background: linear-gradient(135deg, #f0f9ff, #bae6fd);
    color: #0c4a6e;
    border-color: #7dd3fc;
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-280px);
    }

    .sidebar.show {
        transform: translateX(0);
    }

    .main-content {
        margin-left: 0;
    }

    .content {
        padding: 1rem;
    }

    .stats-grid {
        grid-template-columns: 1fr;
    }

    .top-nav {
        padding: 1rem;
    }

    .page-title {
        font-size: 1.5rem;
    }

    .card-body {
        padding: 1.5rem;
    }
}

/* Loading Animations */
.spinner {
    border: 4px solid var(--border-color);
    border-top: 4px solid var(--primary-color);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    margin: 20px auto;
}

@keyframes spin {
    0% {
        transform: rotate(0deg);
    }

    100% {
        transform: rotate(360deg);
    }
}

/* Utility Classes */
.text-center {
    text-align: center;
}

.text-right {
    text-align: right;
}

.text-left {
    text-align: left;
}

.d-none {
    display: none;
}

.d-block {
    display: block;
}

.d-flex {
    display: flex;
}

.d-grid {
    display: grid;
}

.justify-content-between {
    justify-content: space-between;
}

.justify-content-center {
    justify-content: center;
}

.align-items-center {
    align-items: center;
}

.gap-2 {
    gap: 0.5rem;
}

.gap-3 {
    gap: 1rem;
}

.mt-1 {
    margin-top: 0.25rem;
}

.mt-2 {
    margin-top: 0.5rem;
}

.mt-3 {
    margin-top: 1rem;
}

.mt-4 {
    margin-top: 1.5rem;
}

.mb-1 {
    margin-bottom: 0.25rem;
}

.mb-2 {
    margin-bottom: 0.5rem;
}

.mb-3 {
    margin-bottom: 1rem;
}

.mb-4 {
    margin-bottom: 1.5rem;
}

.me-1 {
    margin-right: 0.25rem;
}

.me-2 {
    margin-right: 0.5rem;
}

.me-3 {
    margin-right: 1rem;
}

.ms-2 {
    margin-left: 0.5rem;
}

.p-1 {
    padding: 0.25rem;
}

.p-2 {
    padding: 0.5rem;
}

.p-3 {
    padding: 1rem;
}

.py-4 {
    padding-top: 1.5rem;
    padding-bottom: 1.5rem;
}

/* Custom Scrollbar for Cards */
.card-body::-webkit-scrollbar {
    width: 4px;
}

.card-body::-webkit-scrollbar-track {
    background: transparent;
}

.card-body::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 2px;
}

/* Glassmorphism Effect */
.glass {
    background: rgba(255, 255, 255, 0.25);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.18);
}

/* Hover Effects */
.hover-lift {
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.hover-lift:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* Professional Gradients */
.gradient-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
}

.gradient-success {
    background: linear-gradient(135deg, var(--success-color), #34d399);
}

.gradient-danger {
    background: linear-gradient(135deg, var(--danger-color), #f87171);
}

.gradient-warning {
    background: linear-gradient(135deg, var(--warning-color), #fbbf24);
}

.gradient-info {
    background: linear-gradient(135deg, var(--info-color), #22d3ee);
}