/**
 * Pet-Trax Unified Design System
 * A modern, clean, and consistent design language across all pages
 */

:root {
    /* Primary Color Palette - Subdued & Professional */
    --primary-gradient: linear-gradient(135deg, #6c7ae0 0%, #9aa5f4 100%);
    --secondary-gradient: linear-gradient(135deg, #69b7a3 0%, #7ab8c1 100%);
    --accent-gradient: linear-gradient(135deg, #a384c1 0%, #c999d1 100%);
    --success-gradient: linear-gradient(135deg, #7eb069 0%, #8cc98c 100%);
    --warning-gradient: linear-gradient(135deg, #e5a36b 0%, #f0b48a 100%);
    --danger-gradient: linear-gradient(135deg, #e57373 0%, #ef9a9a 100%);
    --nature-gradient: linear-gradient(135deg, #69b7a3 0%, #7ab8c1 100%);

    /* Shadows - Consistent Elevation */
    --shadow-xs: 0 1px 3px rgba(0, 0, 0, 0.06);
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.15);
    --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.18);

    /* Border Radius - Consistent Rounding */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --radius-pill: 50px;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;

    /* Typography */
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
}

/* ============================================
   Page Headers - Unified Style
   ============================================ */
.page-header {
    background: var(--primary-gradient);
    color: white;
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.page-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, rgba(255, 255, 255, 0.05), transparent);
    pointer-events: none;
}

.page-header h1 {
    position: relative;
    z-index: 1;
    margin-bottom: var(--spacing-sm);
    font-weight: var(--font-weight-bold);
}

.page-header p {
    position: relative;
    z-index: 1;
    opacity: 0.9;
}

/* Header Variants */
.page-header.header-primary { background: var(--primary-gradient); }
.page-header.header-secondary { background: var(--secondary-gradient); }
.page-header.header-success { background: var(--success-gradient); }
.page-header.header-warning { background: var(--warning-gradient); }
.page-header.header-danger { background: var(--danger-gradient); }
.page-header.header-nature { background: var(--nature-gradient); }

/* ============================================
   Cards - Unified Style
   ============================================ */
.card-modern {
    border: none;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
    overflow: hidden;
}

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

.card-modern .card-header {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border-bottom: none;
    font-weight: var(--font-weight-semibold);
    padding: 1.25rem 1.5rem;
}

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

/* ============================================
   Badges - Unified Style
   ============================================ */
.badge-modern {
    background: rgba(255, 255, 255, 0.2);
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: var(--radius-pill);
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
    font-weight: var(--font-weight-semibold);
    box-shadow: var(--shadow-xs);
    backdrop-filter: blur(10px);
}

.badge-gradient-primary {
    background: var(--primary-gradient);
    border: 2px solid white;
    color: white;
}

.badge-gradient-success {
    background: var(--success-gradient);
    border: 2px solid white;
    color: white;
}

.badge-gradient-warning {
    background: var(--warning-gradient);
    border: 2px solid white;
    color: white;
}

/* ============================================
   Buttons - Enhanced Consistency
   ============================================ */
.btn-gradient-primary {
    background: var(--primary-gradient);
    border: none;
    color: white;
    font-weight: var(--font-weight-semibold);
    transition: all 0.3s ease;
}

.btn-gradient-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    color: white;
}

.btn-gradient-success {
    background: var(--success-gradient);
    border: none;
    color: white;
    font-weight: var(--font-weight-semibold);
    transition: all 0.3s ease;
}

.btn-gradient-success:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    color: white;
}

/* ============================================
   Alerts & Info Boxes - Modern Style
   ============================================ */
.alert-modern {
    border: none;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    border-left: 4px solid;
}

.alert-modern.alert-info {
    background: linear-gradient(135deg, #e3f2fd 0%, #f1f8ff 100%);
    border-left-color: #2196f3;
}

.alert-modern.alert-success {
    background: linear-gradient(135deg, #e8f5e9 0%, #f1f8f4 100%);
    border-left-color: #4caf50;
}

.alert-modern.alert-warning {
    background: linear-gradient(135deg, #fff3e0 0%, #fef7f0 100%);
    border-left-color: #ff9800;
}

.alert-modern.alert-danger {
    background: linear-gradient(135deg, #ffebee 0%, #fef5f5 100%);
    border-left-color: #f44336;
}

/* ============================================
   Forms - Consistent Styling
   ============================================ */
.form-modern .form-label {
    font-weight: var(--font-weight-medium);
    color: #495057;
    margin-bottom: 0.5rem;
}

.form-modern .form-control,
.form-modern .form-select {
    border: 2px solid #e9ecef;
    border-radius: var(--radius-sm);
    padding: 0.625rem 1rem;
    transition: all 0.2s ease;
}

.form-modern .form-control:focus,
.form-modern .form-select:focus {
    border-color: #6c7ae0;
    box-shadow: 0 0 0 0.2rem rgba(108, 122, 224, 0.1);
}

/* ============================================
   Tables - Clean & Modern
   ============================================ */
.table-modern {
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.table-modern thead {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

.table-modern thead th {
    font-weight: var(--font-weight-semibold);
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 0.5px;
    color: #6c757d;
    border-bottom: 2px solid #dee2e6;
}

.table-modern tbody tr {
    transition: background-color 0.2s ease;
}

.table-modern tbody tr:hover {
    background-color: #f8f9fa;
}

/* ============================================
   Utility Classes
   ============================================ */
.text-gradient {
    background: linear-gradient(45deg, #6c7ae0, #9aa5f4);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

.hover-lift:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.icon-circle {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto;
}

/* ============================================
   Responsive Adjustments
   ============================================ */
@media (max-width: 768px) {
    .page-header {
        padding: var(--spacing-md);
    }

    .card-modern .card-body {
        padding: 1.25rem;
    }

    .table-modern {
        font-size: 0.9rem;
    }
}

/* ============================================
   Animations
   ============================================ */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.5s ease-out;
}

.fade-in-up-delay-1 {
    animation: fadeInUp 0.5s ease-out 0.1s both;
}

.fade-in-up-delay-2 {
    animation: fadeInUp 0.5s ease-out 0.2s both;
}

.fade-in-up-delay-3 {
    animation: fadeInUp 0.5s ease-out 0.3s both;
}