/**
 * Thikaa Shared Components CSS
 * Unified styles for language switcher, buttons, and common UI elements
 * Used across all pages for consistency
 */

/* ============================================
   CSS Variables - Theme Colors
   ============================================ */
:root {
    --tk-primary: #3b82f6;
    --tk-primary-dark: #2563eb;
    --tk-secondary: #10b981;
    --tk-accent: #8b5cf6;
    --tk-success: #22c55e;
    --tk-warning: #f59e0b;
    --tk-danger: #ef4444;
    --tk-dark: #1f2937;
    --tk-light: #f3f4f6;
    --tk-white: #ffffff;
    --tk-text: #374151;
    --tk-text-muted: #6b7280;
    --tk-border: #e5e7eb;
    --tk-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --tk-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --tk-radius: 8px;
    --tk-radius-lg: 12px;
    --tk-radius-full: 9999px;
    --tk-transition: all 0.2s ease;
}

/* ============================================
   Language Switcher - Unified Component
   ============================================ */
.tk-lang-switcher {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    padding: 4px;
    border-radius: var(--tk-radius-full);
    border: 1px solid rgba(255, 255, 255, 0.15);
}

/* Light theme variant */
.tk-lang-switcher.light {
    background: var(--tk-light);
    border-color: var(--tk-border);
}

.tk-lang-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    font-size: 13px;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    border-radius: var(--tk-radius-full);
    transition: var(--tk-transition);
    cursor: pointer;
    border: none;
    background: transparent;
}

.tk-lang-switcher.light .tk-lang-btn {
    color: var(--tk-text-muted);
}

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

.tk-lang-switcher.light .tk-lang-btn:hover {
    color: var(--tk-text);
    background: rgba(0, 0, 0, 0.05);
}

.tk-lang-btn.active {
    background: var(--tk-primary);
    color: var(--tk-white);
    box-shadow: 0 2px 4px rgba(59, 130, 246, 0.3);
}

.tk-lang-switcher.light .tk-lang-btn.active {
    background: var(--tk-primary);
    color: var(--tk-white);
}

.tk-lang-btn img.flag {
    width: 18px;
    height: 13px;
    border-radius: 2px;
    object-fit: cover;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

/* RTL Support */
[dir="rtl"] .tk-lang-btn {
    flex-direction: row-reverse;
}

/* ============================================
   Loading Overlay Component
   ============================================ */
.tk-loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    opacity: 0;
    visibility: hidden;
    transition: var(--tk-transition);
}

.tk-loading-overlay.active {
    opacity: 1;
    visibility: visible;
}

.tk-loading-box {
    background: var(--tk-white);
    padding: 24px 32px;
    border-radius: var(--tk-radius-lg);
    display: flex;
    align-items: center;
    gap: 12px;
    box-shadow: var(--tk-shadow-lg);
}

.tk-loading-spinner {
    width: 24px;
    height: 24px;
    border: 3px solid var(--tk-light);
    border-top-color: var(--tk-primary);
    border-radius: 50%;
    animation: tk-spin 0.8s linear infinite;
}

@keyframes tk-spin {
    to { transform: rotate(360deg); }
}

.tk-loading-text {
    font-size: 14px;
    font-weight: 500;
    color: var(--tk-text);
}

/* ============================================
   Button Styles - Unified
   ============================================ */
.tk-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 20px;
    font-size: 14px;
    font-weight: 500;
    border-radius: var(--tk-radius);
    border: none;
    cursor: pointer;
    transition: var(--tk-transition);
    text-decoration: none;
}

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

.tk-btn-primary:hover {
    background: var(--tk-primary-dark);
    transform: translateY(-1px);
    box-shadow: var(--tk-shadow);
}

.tk-btn-secondary {
    background: var(--tk-light);
    color: var(--tk-text);
}

.tk-btn-secondary:hover {
    background: var(--tk-border);
}

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

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

.tk-btn-outline {
    background: transparent;
    border: 1px solid var(--tk-border);
    color: var(--tk-text);
}

.tk-btn-outline:hover {
    background: var(--tk-light);
    border-color: var(--tk-text-muted);
}

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

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

/* ============================================
   Card Component
   ============================================ */
.tk-card {
    background: var(--tk-white);
    border-radius: var(--tk-radius-lg);
    border: 1px solid var(--tk-border);
    box-shadow: var(--tk-shadow);
    overflow: hidden;
}

.tk-card-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--tk-border);
    background: var(--tk-light);
}

.tk-card-body {
    padding: 20px;
}

.tk-card-footer {
    padding: 16px 20px;
    border-top: 1px solid var(--tk-border);
    background: var(--tk-light);
}

/* ============================================
   Status Badges
   ============================================ */
.tk-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 10px;
    font-size: 12px;
    font-weight: 500;
    border-radius: var(--tk-radius-full);
}

.tk-badge-success {
    background: #dcfce7;
    color: #166534;
}

.tk-badge-warning {
    background: #fef3c7;
    color: #92400e;
}

.tk-badge-danger {
    background: #fee2e2;
    color: #991b1b;
}

.tk-badge-info {
    background: #dbeafe;
    color: #1e40af;
}

/* ============================================
   Responsive Adjustments
   ============================================ */
@media (max-width: 768px) {
    .tk-lang-switcher {
        padding: 3px;
    }

    .tk-lang-btn {
        padding: 5px 10px;
        font-size: 12px;
    }

    .tk-lang-btn img.flag {
        width: 16px;
        height: 11px;
    }

    .tk-btn {
        padding: 8px 16px;
        font-size: 13px;
    }
}

/* ============================================
   Dark Mode Support
   ============================================ */
@media (prefers-color-scheme: dark) {
    .tk-card {
        background: #1f2937;
        border-color: #374151;
    }

    .tk-card-header,
    .tk-card-footer {
        background: #111827;
        border-color: #374151;
    }
}

/* ============================================
   Animation Utilities
   ============================================ */
.tk-fade-in {
    animation: tk-fadeIn 0.3s ease;
}

@keyframes tk-fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.tk-pulse {
    animation: tk-pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

@keyframes tk-pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}