/*
 * Gym Tracker - Main Stylesheet
 * Clean, modern, responsive design
 */

/* ==================== CSS Variables ==================== */
:root {
    /* Colors */
    --color-primary: #3b82f6;
    --color-primary-dark: #2563eb;
    --color-primary-light: #dbeafe;
    
    --color-success: #10b981;
    --color-success-light: #d1fae5;
    
    --color-warning: #f59e0b;
    --color-warning-light: #fef3c7;
    
    --color-danger: #ef4444;
    --color-danger-light: #fee2e2;
    
    --color-gray-50: #f9fafb;
    --color-gray-100: #f3f4f6;
    --color-gray-200: #e5e7eb;
    --color-gray-300: #d1d5db;
    --color-gray-400: #9ca3af;
    --color-gray-500: #6b7280;
    --color-gray-600: #4b5563;
    --color-gray-700: #374151;
    --color-gray-800: #1f2937;
    --color-gray-900: #111827;
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    
    /* 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: 0.25rem;
    --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), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
}

/* ==================== Reset & Base ==================== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-family);
    font-size: 1rem;
    line-height: 1.5;
    color: var(--color-gray-800);
    background-color: var(--color-gray-50);
    min-height: 100vh;
}

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--color-primary-dark);
    text-decoration: underline;
}

button {
    font-family: inherit;
    cursor: pointer;
}

input, textarea, select {
    font-family: inherit;
    font-size: inherit;
}

/* ==================== Layout ==================== */
.main-content {
    min-height: calc(100vh - 60px - 60px); /* navbar + footer */
    padding: var(--spacing-xl) 0;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* ==================== Navigation ==================== */
.navbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md) var(--spacing-xl);
    background: white;
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-brand a {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-gray-900);
    text-decoration: none;
}

.nav-logo {
    width: 28px;
    height: 28px;
    color: var(--color-primary);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: var(--spacing-xs);
}

.nav-links a {
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    color: var(--color-gray-600);
    font-weight: 500;
    transition: all var(--transition-fast);
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--color-primary);
    background: var(--color-primary-light);
    text-decoration: none;
}

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

.nav-user .username {
    font-weight: 500;
    color: var(--color-gray-600);
}

/* Dropdown */
.dropdown {
    position: relative;
}

.dropdown-toggle {
    background: none;
    border: none;
    padding: var(--spacing-sm);
    border-radius: var(--radius-md);
    transition: background var(--transition-fast);
}

.dropdown-toggle:hover {
    background: var(--color-gray-100);
}

.dropdown-toggle svg {
    width: 20px;
    height: 20px;
    color: var(--color-gray-600);
}

.dropdown-menu {
    display: none;
    position: absolute;
    right: 0;
    top: 100%;
    margin-top: var(--spacing-xs);
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    min-width: 200px;
    padding: var(--spacing-xs);
    z-index: 1000;
}

.dropdown.active .dropdown-menu,
.dropdown:hover .dropdown-menu {
    display: block;
}

.dropdown-menu a,
.dropdown-item-btn {
    display: block;
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--color-gray-700);
    border-radius: var(--radius-md);
    text-decoration: none;
    width: 100%;
    text-align: left;
    background: none;
    border: none;
    font-size: inherit;
}

.dropdown-menu a:hover,
.dropdown-item-btn:hover {
    background: var(--color-gray-100);
    text-decoration: none;
}

.dropdown-menu hr {
    border: none;
    border-top: 1px solid var(--color-gray-200);
    margin: var(--spacing-xs) 0;
}

/* ==================== Flash Messages ==================== */
.flash-messages {
    position: fixed;
    top: var(--spacing-lg);
    right: var(--spacing-lg);
    z-index: 1000;
    max-width: 400px;
}

.alert {
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-md);
    animation: slideIn 0.3s ease;
}

@keyframes slideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

.alert-success {
    background: var(--color-success-light);
    color: var(--color-success);
    border: 1px solid var(--color-success);
}

.alert-error {
    background: var(--color-danger-light);
    color: var(--color-danger);
    border: 1px solid var(--color-danger);
}

.alert-warning {
    background: var(--color-warning-light);
    color: var(--color-warning);
    border: 1px solid var(--color-warning);
}

.alert-info {
    background: var(--color-primary-light);
    color: var(--color-primary);
    border: 1px solid var(--color-primary);
}

.alert-close {
    background: none;
    border: none;
    font-size: 1.25rem;
    cursor: pointer;
    opacity: 0.5;
    transition: opacity var(--transition-fast);
}

.alert-close:hover {
    opacity: 1;
}

/* ==================== Typography ==================== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.25;
    color: var(--color-gray-900);
}

h1 { font-size: 2rem; }
h2 { font-size: 1.5rem; }
h3 { font-size: 1.25rem; }

.text-muted {
    color: var(--color-gray-500);
}

.text-danger {
    color: var(--color-danger);
}

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

.page-header h1 {
    margin-bottom: var(--spacing-xs);
}

.page-header p {
    color: var(--color-gray-500);
}

/* ==================== Cards ==================== */
.card {
    background: white;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

.card-header {
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--color-gray-100);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.card-header h2 {
    margin: 0;
}

.card-body {
    padding: var(--spacing-lg);
}

/* ==================== Buttons ==================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    font-weight: 500;
    font-size: 0.875rem;
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn:hover {
    text-decoration: none;
}

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

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

.btn-secondary {
    background: var(--color-gray-100);
    color: var(--color-gray-700);
}

.btn-secondary:hover {
    background: var(--color-gray-200);
    color: var(--color-gray-800);
}

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

.btn-success:hover {
    background: #059669;
}

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

.btn-danger:hover {
    background: #dc2626;
}

.btn-sm {
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: 0.75rem;
}

.btn-lg {
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: 1rem;
}

.btn-block {
    width: 100%;
}

.btn-icon {
    padding: var(--spacing-sm);
}

.btn-icon svg {
    width: 16px;
    height: 16px;
}

.btn-text {
    background: none;
    color: var(--color-primary);
}

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

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

.form-group label {
    display: block;
    margin-bottom: var(--spacing-sm);
    font-weight: 500;
    color: var(--color-gray-700);
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--color-gray-300);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-light);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--color-gray-400);
}

.form-hint {
    display: block;
    margin-top: var(--spacing-xs);
    font-size: 0.75rem;
    color: var(--color-gray-500);
}

.form-actions {
    display: flex;
    gap: var(--spacing-md);
    justify-content: flex-end;
    margin-top: var(--spacing-xl);
}

.form-select {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--color-gray-300);
    border-radius: var(--radius-md);
    background: white;
    font-size: 0.875rem;
    cursor: pointer;
}

/* ==================== Authentication ==================== */
.auth-container {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: var(--spacing-lg);
}

.auth-card {
    width: 100%;
    max-width: 400px;
    background: white;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    padding: var(--spacing-2xl);
}

.auth-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.auth-logo {
    width: 64px;
    height: 64px;
    margin: 0 auto var(--spacing-lg);
    background: var(--color-primary-light);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
}

.auth-logo svg {
    width: 32px;
    height: 32px;
    color: var(--color-primary);
}

.auth-header h1 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-xs);
}

.auth-header p {
    color: var(--color-gray-500);
}

.auth-form .form-group {
    margin-bottom: var(--spacing-md);
}

.auth-footer {
    text-align: center;
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--color-gray-200);
}

/* ==================== Dashboard ==================== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.stat-card {
    background: white;
    border-radius: var(--radius-xl);
    padding: var(--spacing-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    box-shadow: var(--shadow-sm);
}

.stat-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
}

.stat-icon svg {
    width: 24px;
    height: 24px;
}

.stat-icon-blue {
    background: var(--color-primary-light);
    color: var(--color-primary);
}

.stat-icon-green {
    background: var(--color-success-light);
    color: var(--color-success);
}

.stat-icon-orange {
    background: var(--color-warning-light);
    color: var(--color-warning);
}

.stat-content {
    display: flex;
    flex-direction: column;
}

.stat-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-gray-900);
}

.stat-label {
    font-size: 0.875rem;
    color: var(--color-gray-500);
}

.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

/* ==================== Workout List ==================== */
.workout-list {
    display: flex;
    flex-direction: column;
}

.workout-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--color-gray-100);
}

.workout-item:last-child {
    border-bottom: none;
}

.workout-item.detailed {
    flex-direction: column;
    align-items: stretch;
    gap: var(--spacing-md);
}

.workout-info h3 {
    font-size: 1rem;
    margin-bottom: var(--spacing-xs);
}

.workout-date {
    font-size: 0.875rem;
    color: var(--color-gray-500);
}

.workout-stats {
    display: flex;
    gap: var(--spacing-sm);
}

.badge {
    display: inline-flex;
    align-items: center;
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--color-gray-100);
    border-radius: var(--radius-md);
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--color-gray-600);
}

.badge-blue {
    background: var(--color-primary-light);
    color: var(--color-primary);
}

.badge-secondary {
    background: var(--color-gray-200);
    color: var(--color-gray-700);
}

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

.template-card {
    background: white;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    padding: var(--spacing-lg);
    display: flex;
    flex-direction: column;
}

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

.template-header h3 {
    font-size: 1.125rem;
    margin: 0;
}

.template-exercises {
    flex: 1;
    margin-bottom: var(--spacing-md);
}

.template-exercises ul {
    list-style: none;
    padding: 0;
}

.template-exercises li {
    padding: var(--spacing-xs) 0;
    font-size: 0.875rem;
    color: var(--color-gray-600);
}

.template-exercises li::before {
    content: "•";
    margin-right: var(--spacing-sm);
    color: var(--color-primary);
}

.template-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--color-gray-100);
}

/* Exercise Row in Form */
.exercise-row {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
    align-items: center;
}

.exercise-row input {
    flex: 1;
}

/* ==================== Active Workout ==================== */
.workout-active {
    max-width: 800px;
}

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

.workout-header h1 {
    margin-bottom: var(--spacing-xs);
}

.exercise-card {
    background: white;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    margin-bottom: var(--spacing-lg);
    overflow: hidden;
}

.exercise-header {
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--color-gray-50);
    border-bottom: 1px solid var(--color-gray-100);
}

.exercise-header h3 {
    font-size: 1.125rem;
    margin: 0;
}

.sets-table-wrapper {
    padding: var(--spacing-md);
}

.sets-table {
    width: 100%;
    border-collapse: collapse;
}

.sets-table th,
.sets-table td {
    padding: var(--spacing-sm) var(--spacing-md);
    text-align: left;
    border-bottom: 1px solid var(--color-gray-100);
}

.sets-table th {
    font-weight: 600;
    color: var(--color-gray-600);
    font-size: 0.75rem;
    text-transform: uppercase;
}

.add-set-form {
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--color-gray-50);
    border-top: 1px solid var(--color-gray-100);
}

.add-set-inputs {
    display: flex;
    gap: var(--spacing-md);
    align-items: flex-end;
}

.add-set-inputs .input-group {
    flex: 1;
}

.add-set-inputs label {
    display: block;
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--color-gray-600);
    margin-bottom: var(--spacing-xs);
}

.add-set-inputs input {
    width: 100%;
    padding: var(--spacing-sm);
    border: 1px solid var(--color-gray-300);
    border-radius: var(--radius-md);
}

.previous-data {
    margin-top: var(--spacing-sm);
    font-size: 0.875rem;
}

.workout-complete {
    background: white;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    padding: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

/* ==================== Workout Detail ==================== */
.workout-detail-header {
    flex-direction: column;
    align-items: flex-start;
}

.exercise-detail {
    padding: var(--spacing-md) 0;
}

.exercise-detail h3 {
    margin-bottom: var(--spacing-sm);
}

.sets-detail {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.set-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--color-gray-100);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
}

.set-number {
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-primary);
    color: white;
    border-radius: 50%;
    font-size: 0.75rem;
    font-weight: 600;
}

.exercise-summary {
    display: flex;
    gap: var(--spacing-md);
    font-size: 0.875rem;
}

.workout-stats-row {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-sm);
}

.stat-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--color-gray-100);
    border-radius: var(--radius-md);
    font-size: 0.75rem;
    color: var(--color-gray-600);
}

.stat-badge svg {
    width: 14px;
    height: 14px;
}

.workout-notes {
    margin-top: var(--spacing-sm);
    padding: var(--spacing-sm);
    background: var(--color-gray-50);
    border-radius: var(--radius-md);
    font-style: italic;
}

.workout-actions {
    display: flex;
    gap: var(--spacing-sm);
}

/* ==================== Empty State ==================== */
.empty-state {
    text-align: center;
    padding: var(--spacing-2xl);
}

.empty-state-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-lg);
    background: var(--color-gray-100);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.empty-state-icon svg {
    width: 40px;
    height: 40px;
    color: var(--color-gray-400);
}

.empty-state h2 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
}

.empty-state p {
    color: var(--color-gray-500);
    margin-bottom: var(--spacing-lg);
}

.empty-state-small {
    text-align: center;
    padding: var(--spacing-xl);
    color: var(--color-gray-500);
}

/* ==================== Pagination ==================== */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-md);
    margin-top: var(--spacing-xl);
}

.pagination-info {
    color: var(--color-gray-600);
    font-size: 0.875rem;
}

/* ==================== Modal ==================== */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-lg);
}

.modal.active {
    display: flex;
}

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

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--color-gray-100);
}

.modal-header h3 {
    margin: 0;
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--color-gray-500);
    cursor: pointer;
}

.modal-body {
    padding: var(--spacing-lg);
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-sm);
    padding: var(--spacing-lg);
    border-top: 1px solid var(--color-gray-100);
}

/* ==================== Footer ==================== */
.footer {
    text-align: center;
    padding: var(--spacing-lg);
    color: var(--color-gray-500);
    font-size: 0.875rem;
    border-top: 1px solid var(--color-gray-200);
}

/* ==================== Utilities ==================== */
.max-width-sm { max-width: 400px; }
.max-width-md { max-width: 600px; }
.max-width-lg { max-width: 800px; }

/* ==================== Mobile Menu Button ==================== */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    justify-content: space-around;
    width: 30px;
    height: 24px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: 10;
}

.mobile-menu-btn span {
    width: 100%;
    height: 3px;
    background: var(--color-gray-700);
    border-radius: 2px;
    transition: all 0.3s ease;
}

.mobile-menu-btn.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-btn.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-btn.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

/* ==================== Responsive ==================== */
@media (max-width: 768px) {
    .navbar {
        padding: var(--spacing-sm) var(--spacing-md);
    }
    
    .mobile-menu-btn {
        display: flex;
        order: 2;
    }
    
    .nav-links {
        display: none;
        width: 100%;
        order: 4;
        flex-direction: column;
        padding: var(--spacing-md) 0;
        margin-top: var(--spacing-md);
        border-top: 1px solid var(--color-gray-200);
    }
    
    .nav-links.active {
        display: flex;
    }
    
    .nav-links li {
        margin: var(--spacing-sm) 0;
    }
    
    .dashboard-grid {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .templates-grid {
        grid-template-columns: 1fr;
    }
    
    .workout-header {
        flex-direction: column;
        gap: var(--spacing-md);
    }
    
    .add-set-inputs {
        flex-direction: column;
    }
    
    .add-set-inputs .input-group {
        width: 100%;
    }
    
    .form-actions {
        flex-direction: column;
    }
    
    .page-header {
        flex-direction: column;
        align-items: flex-start;
    }
}

/* ==================== Print Styles ==================== */
@media print {
    .navbar,
    .footer,
    .btn {
        display: none !important;
    }
    
    .card {
        box-shadow: none;
        border: 1px solid var(--color-gray-200);
    }
}