/* TrainersEye Professional Platform Styles */
:root {
    /* Brand Colors */
    --primary-blue: #1e3a8a;
    --secondary-blue: #3b82f6;
    --accent-orange: #f97316;
    --success-green: #22c55e;
    --warning-yellow: #fbbf24;
    --error-red: #ef4444;
    
    /* Glassmorphic Colors */
    --glass-bg: rgba(255, 255, 255, 0.1);
    --glass-border: rgba(255, 255, 255, 0.2);
    --glass-shadow: rgba(0, 0, 0, 0.1);
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    
    /* Transitions */
    --transition-fast: 150ms ease-in-out;
    --transition-normal: 250ms ease-in-out;
    --transition-slow: 350ms ease-in-out;
}

/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    font-weight: var(--font-weight-normal);
    line-height: 1.6;
    color: white;
    background: linear-gradient(135deg, var(--primary-blue) 0%, #1e40af 50%, #1d4ed8 100%);
    background-attachment: fixed;
    min-height: 100vh;
    overflow-x: hidden;
}

/* Background Pattern */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(circle at 25% 25%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 75% 75%, rgba(255, 255, 255, 0.05) 0%, transparent 50%);
    pointer-events: none;
    z-index: -1;
}

/* Navigation */
.navbar {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
    padding: var(--spacing-md) 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow-lg);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: var(--font-weight-bold);
    font-size: 1.25rem;
    color: var(--accent-orange);
}

.logo-img {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
}

.nav-menu {
    display: flex;
    gap: var(--spacing-lg);
    align-items: center;
}

.nav-item {
    color: white;
    text-decoration: none;
    font-weight: var(--font-weight-medium);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    transition: var(--transition-normal);
    position: relative;
}

.nav-item:hover,
.nav-item.active {
    background: var(--glass-bg);
    color: var(--accent-orange);
    transform: translateY(-2px);
}

.user-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.user-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--accent-orange);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: var(--font-weight-bold);
    color: white;
    cursor: pointer;
    transition: var(--transition-normal);
}

.user-avatar:hover {
    transform: scale(1.1);
    box-shadow: var(--shadow-lg);
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-sm);
}

.hamburger {
    width: 25px;
    height: 3px;
    background: white;
    border-radius: 2px;
    transition: var(--transition-normal);
}

/* Main Container */
.main-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--spacing-xl) var(--spacing-lg);
}

/* Dashboard Header */
.dashboard-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.dashboard-title {
    font-size: 3rem;
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-sm);
    background: linear-gradient(135deg, white, var(--accent-orange));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.dashboard-subtitle {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.8);
    font-weight: var(--font-weight-medium);
}

/* Platform Tabs */
.platform-tabs {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-2xl);
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border-radius: var(--radius-xl);
    padding: var(--spacing-sm);
    border: 1px solid var(--glass-border);
}

.tab-btn {
    flex: 1;
    padding: var(--spacing-md) var(--spacing-lg);
    background: none;
    border: none;
    color: rgba(255, 255, 255, 0.7);
    font-weight: var(--font-weight-medium);
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: var(--transition-normal);
    font-size: 1rem;
}

.tab-btn.active,
.tab-btn:hover {
    background: var(--accent-orange);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* Tab Content */
.tab-content {
    display: none;
    animation: fadeIn 0.3s ease-in-out;
}

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

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Dashboard Grid */
.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-xl);
    align-items: start;
}

.full-width {
    grid-column: 1 / -1;
}

/* Glassmorphic Cards */
.card {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-xl);
    transition: var(--transition-normal);
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    border-color: rgba(255, 255, 255, 0.3);
}

.glassmorphic {
    position: relative;
    overflow: hidden;
}

.glassmorphic::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
}

/* Card Headers */
.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.card-title {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 1.25rem;
    font-weight: var(--font-weight-semibold);
    color: white;
}

.card-icon {
    font-size: 1.5rem;
}

.header-actions {
    display: flex;
    gap: var(--spacing-sm);
    align-items: center;
}

/* Statistics */
.stats-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.stat-box {
    text-align: center;
    padding: var(--spacing-lg);
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: var(--transition-normal);
}

.stat-box.clickable {
    cursor: pointer;
}

.stat-box.clickable:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-2px);
    border-color: var(--accent-orange);
}

.stat-number {
    display: block;
    font-size: 2rem;
    font-weight: var(--font-weight-bold);
    color: var(--accent-orange);
    margin-bottom: var(--spacing-xs);
}

.stat-label {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.8);
    font-weight: var(--font-weight-medium);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-lg);
    border: none;
    border-radius: var(--radius-lg);
    font-weight: var(--font-weight-medium);
    font-size: 0.875rem;
    cursor: pointer;
    transition: var(--transition-normal);
    text-decoration: none;
    min-height: 44px; /* Touch target size */
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.btn:hover::before {
    left: 100%;
}

.btn-primary {
    background: var(--accent-orange);
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    background: #ea580c;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: var(--success-green);
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-secondary:hover {
    background: #16a34a;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-outline {
    background: transparent;
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--accent-orange);
    color: var(--accent-orange);
}

.btn-large {
    padding: var(--spacing-lg) var(--spacing-xl);
    font-size: 1rem;
    min-height: 52px;
}

.btn-sm {
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 0.75rem;
    min-height: 36px;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none !important;
}

/* Action Grid */
.action-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
}

.action-buttons {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    margin-top: var(--spacing-lg);
}

/* Forms */
.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-label {
    display: block;
    margin-bottom: var(--spacing-sm);
    font-weight: var(--font-weight-medium);
    color: white;
    font-size: 0.875rem;
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: var(--spacing-md);
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-md);
    color: white;
    font-size: 1rem;
    transition: var(--transition-normal);
    min-height: 44px;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--accent-orange);
    background: rgba(255, 255, 255, 0.15);
    box-shadow: 0 0 0 3px rgba(249, 115, 22, 0.1);
}

.form-input::placeholder {
    color: rgba(255, 255, 255, 0.5);
}

.form-textarea {
    resize: vertical;
    min-height: 100px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
}

.form-help {
    display: block;
    margin-top: var(--spacing-xs);
    font-size: 0.75rem;
    color: rgba(255, 255, 255, 0.6);
}

.char-counter {
    text-align: right;
    margin-top: var(--spacing-xs);
    font-size: 0.75rem;
    color: rgba(255, 255, 255, 0.6);
}

.error-message {
    color: var(--error-red);
    font-size: 0.75rem;
    margin-top: var(--spacing-xs);
    display: none;
}

.form-group.error .error-message {
    display: block;
}

.form-group.error .form-input,
.form-group.error .form-select,
.form-group.error .form-textarea {
    border-color: var(--error-red);
}

/* Filter Section */
.filter-section {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
}

.filter-section .form-select,
.filter-section .form-input {
    flex: 1;
    min-width: 150px;
}

/* Lists */
.client-list,
.workout-list {
    max-height: 400px;
    overflow-y: auto;
    scrollbar-width: thin;
    scrollbar-color: var(--accent-orange) transparent;
}

.client-list::-webkit-scrollbar,
.workout-list::-webkit-scrollbar {
    width: 6px;
}

.client-list::-webkit-scrollbar-track,
.workout-list::-webkit-scrollbar-track {
    background: transparent;
}

.client-list::-webkit-scrollbar-thumb,
.workout-list::-webkit-scrollbar-thumb {
    background: var(--accent-orange);
    border-radius: 3px;
}

.client-item,
.workout-item {
    padding: var(--spacing-md);
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-sm);
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: var(--transition-normal);
    cursor: pointer;
}

.client-item:hover,
.workout-item:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--accent-orange);
    transform: translateX(5px);
}

.client-name,
.workout-type {
    font-weight: var(--font-weight-semibold);
    color: white;
    margin-bottom: var(--spacing-xs);
}

.client-info,
.workout-info {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.7);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* Progress Bars */
.progress-bar {
    width: 100%;
    height: 8px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
    overflow: hidden;
    margin-top: var(--spacing-sm);
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--success-green), var(--accent-orange));
    border-radius: 4px;
    transition: width 1s ease-in-out;
    width: var(--progress-width, 0%);
}

.satisfaction-meter {
    margin-top: var(--spacing-lg);
}

.satisfaction-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-sm);
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.8);
}

/* Charts */
.charts-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    margin-top: var(--spacing-lg);
}

.chart-wrapper {
    position: relative;
    height: 300px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
}

.chart-canvas {
    width: 100% !important;
    height: 100% !important;
}

/* Report Grid */
.report-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
}

/* Badges */
.badges-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    gap: var(--spacing-md);
}

.badge-item {
    text-align: center;
    padding: var(--spacing-md);
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: var(--transition-normal);
}

.badge-item:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-2px);
}

.badge-icon {
    font-size: 2rem;
    margin-bottom: var(--spacing-sm);
}

.badge-name {
    font-size: 0.75rem;
    color: rgba(255, 255, 255, 0.8);
    font-weight: var(--font-weight-medium);
}

/* Goals */
.goal-item {
    padding: var(--spacing-lg);
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.1);
    margin-bottom: var(--spacing-md);
    transition: var(--transition-normal);
}

.goal-item:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--accent-orange);
}

.goal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
}

.goal-title {
    font-weight: var(--font-weight-semibold);
    color: white;
}

.goal-status {
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: var(--font-weight-medium);
}

.goal-status.active {
    background: var(--success-green);
    color: white;
}

.goal-status.completed {
    background: var(--accent-orange);
    color: white;
}

.goal-progress {
    margin-bottom: var(--spacing-sm);
}

.goal-progress-text {
    display: flex;
    justify-content: space-between;
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: var(--spacing-xs);
}

/* Comparison */
.comparison-controls {
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
}

.vs-label {
    font-weight: var(--font-weight-bold);
    color: var(--accent-orange);
    padding: 0 var(--spacing-sm);
}

.comparison-results {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

.comparison-period {
    text-align: center;
    padding: var(--spacing-lg);
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.comparison-title {
    font-weight: var(--font-weight-semibold);
    color: white;
    margin-bottom: var(--spacing-md);
}

.comparison-metric {
    display: flex;
    justify-content: space-between;
    margin-bottom: var(--spacing-sm);
    font-size: 0.875rem;
}

.comparison-value {
    font-weight: var(--font-weight-semibold);
    color: var(--accent-orange);
}

/* Exercise Library */
.library-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-xl);
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.library-header h2 {
    font-size: 2rem;
    font-weight: var(--font-weight-bold);
    color: white;
}

.library-search {
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
    flex-wrap: wrap;
}

.library-search .form-input,
.library-search .form-select {
    min-width: 200px;
}

.exercise-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.exercise-card {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    padding: var(--spacing-lg);
    transition: var(--transition-normal);
    cursor: pointer;
}

.exercise-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-orange);
    box-shadow: var(--shadow-xl);
}

.exercise-image {
    width: 100%;
    height: 200px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    color: var(--accent-orange);
}

.exercise-name {
    font-size: 1.125rem;
    font-weight: var(--font-weight-semibold);
    color: white;
    margin-bottom: var(--spacing-sm);
}

.exercise-category {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--accent-orange);
    color: white;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: var(--font-weight-medium);
    margin-bottom: var(--spacing-sm);
}

.exercise-description {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.5;
}

/* Modals */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
    z-index: 2000;
    padding: var(--spacing-lg);
    overflow-y: auto;
}

.modal.active {
    display: flex;
    align-items: center;
    justify-content: center;
    animation: modalFadeIn 0.3s ease-in-out;
}

@keyframes modalFadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.modal-content {
    width: 100%;
    max-width: 500px;
    max-height: 90vh;
    overflow-y: auto;
    animation: modalSlideIn 0.3s ease-in-out;
}

.modal-large {
    max-width: 800px;
}

@keyframes modalSlideIn {
    from { transform: translateY(-50px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.modal-title {
    font-size: 1.5rem;
    font-weight: var(--font-weight-semibold);
    color: white;
}

.close-btn {
    background: none;
    border: none;
    color: rgba(255, 255, 255, 0.7);
    font-size: 1.5rem;
    cursor: pointer;
    padding: var(--spacing-sm);
    border-radius: var(--radius-md);
    transition: var(--transition-normal);
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.close-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    color: white;
}

/* Alerts */
.alert {
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
    border: 1px solid;
    display: none;
}

.alert.show {
    display: block;
    animation: alertSlideIn 0.3s ease-in-out;
}

@keyframes alertSlideIn {
    from { transform: translateY(-20px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

.alert-success {
    background: rgba(34, 197, 94, 0.1);
    border-color: var(--success-green);
    color: var(--success-green);
}

.alert-error {
    background: rgba(239, 68, 68, 0.1);
    border-color: var(--error-red);
    color: var(--error-red);
}

.alert-info {
    background: rgba(59, 130, 246, 0.1);
    border-color: var(--secondary-blue);
    color: var(--secondary-blue);
}

.alert-warning {
    background: rgba(251, 191, 36, 0.1);
    border-color: var(--warning-yellow);
    color: var(--warning-yellow);
}

/* Loading Spinner */
.loading-spinner {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-xl);
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.875rem;
}

.loading-spinner::after {
    content: '';
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top: 2px solid var(--accent-orange);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-left: var(--spacing-sm);
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Load More Button */
.load-more {
    width: 100%;
    margin-top: var(--spacing-md);
}

/* Footer */
.footer {
    margin-top: var(--spacing-2xl);
    padding: var(--spacing-xl) 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(0, 0, 0, 0.2);
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-lg);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.875rem;
}

.footer-logo-img {
    width: 30px;
    height: 30px;
    border-radius: var(--radius-sm);
}

.footer-links {
    display: flex;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
}

.footer-link {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    font-size: 0.875rem;
    transition: var(--transition-normal);
}

.footer-link:hover {
    color: var(--accent-orange);
}

/* Responsive Design */
@media (max-width: 768px) {
    .mobile-menu-btn {
        display: flex;
    }
    
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--glass-bg);
        backdrop-filter: blur(20px);
        border: 1px solid var(--glass-border);
        border-radius: var(--radius-lg);
        margin: var(--spacing-sm);
        padding: var(--spacing-md);
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .dashboard-title {
        font-size: 2rem;
    }
    
    .dashboard-grid {
        grid-template-columns: 1fr;
    }
    
    .platform-tabs {
        flex-direction: column;
    }
    
    .tab-btn {
        text-align: center;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .charts-container {
        grid-template-columns: 1fr;
    }
    
    .comparison-results {
        grid-template-columns: 1fr;
    }
    
    .action-grid {
        grid-template-columns: 1fr;
    }
    
    .report-grid {
        grid-template-columns: 1fr;
    }
    
    .library-header {
        flex-direction: column;
        align-items: stretch;
    }
    
    .library-search {
        flex-direction: column;
    }
    
    .library-search .form-input,
    .library-search .form-select {
        min-width: auto;
    }
    
    .exercise-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        flex-direction: column;
        text-align: center;
    }
    
    .footer-links {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .main-container {
        padding: var(--spacing-lg) var(--spacing-md);
    }
    
    .card {
        padding: var(--spacing-lg);
    }
    
    .stats-row {
        grid-template-columns: 1fr 1fr;
    }
    
    .modal {
        padding: var(--spacing-md);
    }
    
    .modal-content {
        max-height: 95vh;
    }
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
    :root {
        --glass-bg: rgba(255, 255, 255, 0.2);
        --glass-border: rgba(255, 255, 255, 0.4);
    }
    
    .card {
        border-width: 2px;
    }
    
    .btn-outline {
        border-width: 3px;
    }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .loading-spinner::after {
        animation: none;
    }
}

/* Print Styles */
@media print {
    .navbar,
    .footer,
    .btn,
    .modal {
        display: none !important;
    }
    
    .main-container {
        max-width: none;
        padding: 0;
    }
    
    .card {
        break-inside: avoid;
        box-shadow: none;
        border: 1px solid #000;
    }
    
    body {
        background: white !important;
        color: black !important;
    }
    
    .card,
    .stat-box,
    .client-item,
    .workout-item {
        background: white !important;
        color: black !important;
    }
}