/* Modern Design System - Shared Styles */

/* CSS Variables */
:root {
    /* Colors */
    --primary-color: #007bff;
    --primary-dark: #0056b3;
    --primary-light: #4dabff;
    --secondary-color: #6c757d;
    --success-color: #28a745;
    --success-light: #d4edda;
    --danger-color: #dc3545;
    --danger-light: #f8d7da;
    --warning-color: #ffc107;
    --warning-light: #fff3cd;
    --info-color: #17a2b8;
    --info-light: #d1ecf1;
    
    /* Surfaces */
    --surface: #ffffff;
    --background: #f8f9fa;
    --surface-hover: #f5f5f5;
    --border-color: #e0e0e0;
    
    /* Text */
    --text-primary: #333333;
    --text-secondary: #666666;
    --text-muted: #999999;
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);
    --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.16);
    
    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* Dark Mode Variables */
[data-theme="dark"] {
    --surface: #2d2d2d;
    --background: #1a1a1a;
    --surface-hover: #3a3a3a;
    --border-color: #444444;
    --text-primary: #f0f0f0;
    --text-secondary: #b0b0b0;
    --text-muted: #888888;
}

/* ==================== MODERN BUTTONS ==================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 20px;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: all var(--transition-normal);
    white-space: nowrap;
}

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

.btn:active {
    transform: translateY(0);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
}

.btn-primary:hover {
    box-shadow: 0 8px 20px rgba(0, 123, 255, 0.3);
}

.btn-secondary {
    background: var(--surface);
    color: var(--text-primary);
    border: 2px solid var(--border-color);
}

.btn-secondary:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.btn-success {
    background: linear-gradient(135deg, var(--success-color) 0%, #1e7e34 100%);
    color: white;
}

.btn-danger {
    background: linear-gradient(135deg, var(--danger-color) 0%, #c82333 100%);
    color: white;
}

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

.btn-ghost:hover {
    background: var(--surface-hover);
}

.btn-sm {
    padding: 6px 12px;
    font-size: 12px;
}

.btn-lg {
    padding: 14px 28px;
    font-size: 16px;
}

/* ==================== MODERN INPUTS ==================== */

.modern-input,
.modern-select,
.modern-textarea {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-sm);
    background: var(--surface);
    color: var(--text-primary);
    font-size: 14px;
    transition: all var(--transition-fast);
}

.modern-input:focus,
.modern-select:focus,
.modern-textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.1);
}

.modern-input::placeholder,
.modern-textarea::placeholder {
    color: var(--text-muted);
}

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

/* Input with Icon */
.input-wrapper {
    position: relative;
}

.input-wrapper .modern-input {
    padding-left: 44px;
}

.input-icon {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    pointer-events: none;
}

/* Select Wrapper */
.select-wrapper {
    position: relative;
}

.select-wrapper::after {
    content: '▼';
    position: absolute;
    right: 16px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    pointer-events: none;
    font-size: 10px;
}

.select-wrapper .modern-select {
    appearance: none;
    padding-right: 44px;
}

/* ==================== MODERN FORMS ==================== */

.modern-form-container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 24px;
}

.form-header {
    background: linear-gradient(135deg, #9aeb02 0%, #6ba206 100%);
    border-radius: var(--radius-lg);
    padding: 32px;
    margin-bottom: 24px;
    color: white;
    box-shadow: var(--shadow-lg);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 16px;
}

.header-icon {
    width: 56px;
    height: 56px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(10px);
}

.page-title {
    font-size: 28px;
    font-weight: 700;
    margin: 0;
}

.page-subtitle {
    font-size: 14px;
    opacity: 0.9;
    margin: 4px 0 0 0;
}

.form-card {
    background: var(--surface);
    border-radius: var(--radius-lg);
    padding: 32px;
    margin-bottom: 24px;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
}

.form-card:hover {
    box-shadow: var(--shadow-md);
}

.card-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 24px;
    padding-bottom: 20px;
    border-bottom: 2px solid var(--border-color);
}

.card-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    color: white;
}

.card-title {
    font-size: 20px;
    font-weight: 600;
    margin: 0;
    color: var(--text-primary);
}

.card-subtitle {
    font-size: 14px;
    color: var(--text-secondary);
    margin: 4px 0 0 0;
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
}

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

.modern-label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.required-star {
    color: var(--danger-color);
    margin-left: 2px;
}

.form-navigation {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    margin-top: 32px;
    padding-top: 24px;
    border-top: 2px solid var(--border-color);
}

.form-navigation .btn {
    min-width: 120px;
}

/* ==================== PROGRESS STEPS ==================== */

.form-progress {
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 32px;
    padding: 24px;
    background: var(--surface);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.progress-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.step-number {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--border-color);
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 16px;
    transition: all var(--transition-normal);
}

.progress-step.active .step-number {
    background: var(--primary-color);
    color: white;
    box-shadow: 0 4px 12px rgba(0, 123, 255, 0.3);
}

.step-label {
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
}

.progress-step.active .step-label {
    color: var(--primary-color);
    font-weight: 600;
}

.progress-line {
    flex: 1;
    height: 2px;
    background: var(--border-color);
    margin: 0 16px;
    margin-bottom: 24px;
    border-radius: 2px;
    max-width: 100px;
}

/* ==================== MODERN CARDS ==================== */

.modern-card {
    background: var(--surface);
    border-radius: var(--radius-lg);
    padding: 24px;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
}

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

.modern-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.modern-card-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

/* ==================== MODERN TABLES ==================== */

.modern-table-container {
    background: var(--surface);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

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

.modern-table thead {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
}

.modern-table thead th {
    padding: 16px;
    text-align: left;
    font-weight: 600;
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.modern-table tbody tr {
    border-bottom: 1px solid var(--border-color);
    transition: background var(--transition-fast);
}

.modern-table tbody tr:hover {
    background: var(--surface-hover);
}

.modern-table tbody td {
    padding: 16px;
    color: var(--text-primary);
}

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

/* ==================== MODERN MODALS ==================== */

.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    padding: 20px;
}

.modal-card {
    background: var(--surface);
    border-radius: var(--radius-xl);
    max-width: 500px;
    width: 100%;
    box-shadow: var(--shadow-xl);
    animation: modalSlideIn 0.3s ease;
}

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

.modal-header {
    padding: 24px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 16px;
}

.modal-icon {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

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

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

.modal-icon.danger {
    background: var(--danger-light);
    color: var(--danger-color);
}

.modal-header h2 {
    font-size: 20px;
    font-weight: 600;
    margin: 0;
    color: var(--text-primary);
}

.modal-body {
    padding: 24px;
    color: var(--text-secondary);
}

.modal-footer {
    padding: 24px;
    border-top: 1px solid var(--border-color);
    display: flex;
    gap: 12px;
    justify-content: flex-end;
}

/* ==================== MODERN BADGES ==================== */

.badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    gap: 6px;
}

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

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

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

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

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

.badge-secondary {
    background: var(--surface-hover);
    color: var(--text-secondary);
}

/* ==================== MODERN ALERTS ==================== */

.modern-alert {
    padding: 16px 20px;
    border-radius: var(--radius-sm);
    margin-bottom: 16px;
    display: flex;
    align-items: flex-start;
    gap: 12px;
}

.alert-icon {
    width: 24px;
    height: 24px;
    flex-shrink: 0;
}

.alert-content {
    flex: 1;
}

.alert-title {
    font-weight: 600;
    margin-bottom: 4px;
}

.alert-message {
    font-size: 14px;
}

.alert-success {
    background: var(--success-light);
    color: var(--success-color);
}

.alert-danger {
    background: var(--danger-light);
    color: var(--danger-color);
}

.alert-warning {
    background: var(--warning-light);
    color: var(--warning-color);
}

.alert-info {
    background: var(--info-light);
    color: var(--info-color);
}

/* ==================== PRODUCT GRID ==================== */

.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 12px;
    margin-top: 12px;
}

.product-card {
    display: block;
    cursor: pointer;
}

.product-card input[type="checkbox"] {
    display: none;
}

.product-content {
    background: var(--surface);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 16px;
    display: flex;
    align-items: center;
    gap: 12px;
    transition: all var(--transition-fast);
}

.product-card input[type="checkbox"]:checked + .product-content {
    border-color: var(--primary-color);
    background: rgba(0, 123, 255, 0.05);
}

.product-checkbox {
    width: 24px;
    height: 24px;
    border: 2px solid var(--border-color);
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    transition: all var(--transition-fast);
}

.product-card input[type="checkbox"]:checked + .product-content .product-checkbox {
    background: var(--primary-color);
    border-color: var(--primary-color);
}

.product-checkbox svg {
    opacity: 0;
}

.product-card input[type="checkbox"]:checked + .product-content .product-checkbox svg {
    opacity: 1;
}

.product-name {
    font-weight: 500;
    color: var(--text-primary);
}

/* ==================== MODERN CHECKBOX ==================== */

.modern-checkbox {
    display: flex;
    align-items: center;
    gap: 12px;
    cursor: pointer;
}

.modern-checkbox input[type="checkbox"] {
    width: 20px;
    height: 20px;
    accent-color: var(--primary-color);
    cursor: pointer;
}

.checkbox-label {
    color: var(--text-primary);
    user-select: none;
}

/* ==================== RESPONSIVE DESIGN ==================== */

@media (max-width: 768px) {
    .modern-form-container {
        padding: 16px;
    }
    
    .form-header {
        padding: 24px;
    }
    
    .page-title {
        font-size: 24px;
    }
    
    .form-grid {
        grid-template-columns: 1fr;
    }
    
    .form-navigation {
        flex-direction: column;
    }
    
    .form-navigation .btn {
        width: 100%;
    }
    
    .form-progress {
        flex-wrap: wrap;
        gap: 12px;
    }
    
    .progress-line {
        display: none;
    }
    
    .modal-card {
        margin: 16px;
    }
    
    .modal-footer {
        flex-direction: column;
    }
    
    .modal-footer .btn {
        width: 100%;
    }
    
    .product-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .btn {
        padding: 8px 16px;
        font-size: 13px;
    }
    
    .btn-lg {
        padding: 12px 24px;
        font-size: 14px;
    }
    
    .form-card {
        padding: 20px;
    }
    
    .card-header {
        flex-direction: column;
        align-items: flex-start;
    }
}

/* ==================== ANIMATIONS ==================== */

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

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

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

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

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

.animate-slide-up {
    animation: slideInUp 0.4s ease;
}

.animate-slide-down {
    animation: slideInDown 0.4s ease;
}

.animate-scale-in {
    animation: scaleIn 0.3s ease;
}

/* ==================== UTILITY CLASSES ==================== */

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

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

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

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

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

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

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

.font-bold {
    font-weight: 700;
}

.font-semibold {
    font-weight: 600;
}

.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mt-4 { margin-top: 32px; }

.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }
.mb-4 { margin-bottom: 32px; }

.p-1 { padding: 8px; }
.p-2 { padding: 16px; }
.p-3 { padding: 24px; }
.p-4 { padding: 32px; }

.d-flex {
    display: flex;
}

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

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

.gap-1 { gap: 8px; }
.gap-2 { gap: 16px; }
.gap-3 { gap: 24px; }