/* Modern Tracker Styles */
:root {
    --primary: #4361ee;
    --primary-light: #4895ef;
    --secondary: #3f37c9;
    --accent: #f72585;
    --success: #4cc9f0;
    --warning: #f8961e;
    --danger: #ef233c;
    --light: #f8f9fa;
    --dark: #212529;
    --gray-100: #f8f9fa;
    --gray-200: #e9ecef;
    --gray-300: #dee2e6;
    --gray-400: #ced4da;
    --gray-500: #adb5bd;
    --gray-600: #6c757d;
    --gray-700: #495057;
    --gray-800: #343a40;
    --gray-900: #212529;
    
    --card-bg: #ffffff;
    --card-hover: #f8f9fa;
    --card-border: rgba(0, 0, 0, 0.05);
    --text-primary: #212529;
    --text-secondary: #6c757d;
}

/* Dark mode support */
[data-bs-theme="dark"] {
    --card-bg: #2b3035;
    --card-hover: #343a40;
    --card-border: #373b3e;
    --text-primary: #f8f9fa;
    --text-secondary: #adb5bd;
}

/* Base Styles */
.tracker-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 1.5rem;
}

/* Card Styles */
.tracker-card {
    background-color: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    margin-bottom: 1.5rem;
    overflow: hidden;
}

.tracker-card:hover {
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
    transform: translateY(-2px);
}

.tracker-card .card-header {
    background-color: transparent;
    border-bottom: 1px solid var(--card-border);
    padding: 1.25rem 1.5rem;
}

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

/* Form Elements */
.tracker-form .form-control,
.tracker-form .form-select,
.tracker-form .form-check-input {
    background-color: var(--card-bg);
    border: 1px solid var(--card-border);
    color: var(--text-primary);
    padding: 0.6rem 1rem;
    border-radius: 8px;
    transition: all 0.2s ease;
}

.tracker-form .form-control:focus,
.tracker-form .form-select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 0.25rem rgba(67, 97, 238, 0.25);
    background-color: var(--card-bg);
    color: var(--text-primary);
}

.tracker-form .form-label {
    color: var(--text-primary);
    font-weight: 500;
    margin-bottom: 0.5rem;
}

/* Buttons */
.btn-tracker {
    padding: 0.6rem 1.25rem;
    border-radius: 8px;
    font-weight: 500;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-tracker i {
    font-size: 1.1em;
}

/* Tables */
.tracker-table {
    --bs-table-bg: transparent;
    --bs-table-color: var(--text-primary);
    --bs-table-border-color: var(--card-border);
    margin-bottom: 0;
}

.tracker-table > :not(caption) > * > * {
    padding: 1rem 1.25rem;
    border-bottom-width: 1px;
}

.tracker-table thead th {
    background-color: rgba(67, 97, 238, 0.05);
    color: var(--primary);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.5px;
    border: none;
}

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

/* Badges */
.badge-meal {
    padding: 0.4em 0.8em;
    border-radius: 6px;
    font-weight: 500;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.badge-breakfast { background-color: #e3f2fd; color: #1565c0; }
.badge-lunch { background-color: #e8f5e9; color: #2e7d32; }
.badge-dinner { background-color: #f3e5f5; color: #7b1fa2; }
.badge-snack { background-color: #fff3e0; color: #ef6c00; }

/* Nutrition Labels */
.nutrition-label {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0.75rem;
    background-color: rgba(67, 97, 238, 0.1);
    border-radius: 6px;
    color: var(--primary);
    font-weight: 500;
    font-size: 0.85rem;
}

.nutrition-label i {
    font-size: 1.1em;
}

/* Empty State */
.empty-state {
    padding: 3rem 1rem;
    text-align: center;
    color: var(--text-secondary);
}

.empty-state i {
    font-size: 3rem;
    margin-bottom: 1rem;
    opacity: 0.3;
}

/* Responsive Adjustments */
@media (max-width: 768px) {
    .tracker-container {
        padding: 1rem;
    }
    
    .tracker-card .card-body {
        padding: 1.25rem;
    }
    
    .tracker-table > :not(caption) > * > * {
        padding: 0.75rem 0.5rem;
    }
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.fade-in {
    animation: fadeIn 0.3s ease-out forwards;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--card-bg);
}

::-webkit-scrollbar-thumb {
    background: var(--gray-500);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--gray-600);
}