/* ================================
   Teknik Servis Kayıt Sistemi
   Modern Dark Theme
================================ */

:root {
    /* Colors */
    --bg-primary: #0a0a0f;
    --bg-secondary: #12121a;
    --bg-tertiary: #1a1a25;
    --bg-card: #15151f;
    --bg-hover: #1f1f2e;
    
    --text-primary: #ffffff;
    --text-secondary: #a0a0b0;
    --text-muted: #606070;
    
    --accent-blue: #3b82f6;
    --accent-blue-glow: rgba(59, 130, 246, 0.3);
    --accent-green: #22c55e;
    --accent-green-glow: rgba(34, 197, 94, 0.3);
    --accent-orange: #f97316;
    --accent-orange-glow: rgba(249, 115, 22, 0.3);
    --accent-purple: #a855f7;
    --accent-purple-glow: rgba(168, 85, 247, 0.3);
    --accent-red: #ef4444;
    
    --border-color: #2a2a3a;
    --border-light: #3a3a4a;
    
    /* Spacing */
    --sidebar-width: 260px;
    --header-height: 80px;
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
    --transition-slow: 400ms ease;
    
    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
    
    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
}

/* Background Pattern */
body::before {
    content: '';
    position: fixed;
    inset: 0;
    background: 
        radial-gradient(ellipse 80% 50% at 50% -20%, rgba(59, 130, 246, 0.15), transparent),
        radial-gradient(ellipse 60% 40% at 100% 100%, rgba(168, 85, 247, 0.1), transparent);
    pointer-events: none;
    z-index: -1;
}

/* App Container */
.app-container {
    display: flex;
    min-height: 100vh;
}

/* ================================
   Sidebar
================================ */
.sidebar {
    width: var(--sidebar-width);
    background: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    z-index: 100;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 24px;
    border-bottom: 1px solid var(--border-color);
}

.logo-icon {
    width: 42px;
    height: 42px;
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 16px rgba(59, 130, 246, 0.3);
}

.logo-icon svg {
    width: 22px;
    height: 22px;
    color: white;
}

.logo span {
    font-weight: 600;
    font-size: 1.1rem;
    letter-spacing: -0.02em;
}

.nav-menu {
    flex: 1;
    padding: 16px 12px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 16px;
    background: transparent;
    border: none;
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-family: inherit;
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-align: left;
    width: 100%;
}

.nav-item svg {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

.nav-item:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.nav-item.active {
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.15), rgba(168, 85, 247, 0.1));
    color: var(--text-primary);
    box-shadow: inset 0 0 0 1px rgba(59, 130, 246, 0.3);
}

.nav-item.active svg {
    color: var(--accent-blue);
}

.sidebar-footer {
    padding: 20px;
    border-top: 1px solid var(--border-color);
}

.week-info {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.week-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.week-number {
    font-family: 'JetBrains Mono', monospace;
    font-size: 1.5rem;
    font-weight: 600;
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ================================
   Main Content
================================ */
.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    padding: 32px 40px;
    min-height: 100vh;
}

.view {
    display: none;
    animation: fadeIn 0.3s ease;
}

.view.active {
    display: block;
}

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

/* View Header */
.view-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 32px;
}

.header-left h1 {
    font-size: 2rem;
    font-weight: 700;
    letter-spacing: -0.03em;
    margin-bottom: 4px;
}

.subtitle {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* Week Navigator */
.week-navigator {
    display: flex;
    align-items: center;
    gap: 8px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 6px;
}

.week-btn {
    width: 36px;
    height: 36px;
    background: transparent;
    border: none;
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

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

.week-btn svg {
    width: 18px;
    height: 18px;
}

.week-display {
    padding: 0 16px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.9rem;
    font-weight: 500;
    min-width: 140px;
    text-align: center;
}

/* ================================
   Stats Row
================================ */
.stats-row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-bottom: 32px;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 16px;
    transition: all var(--transition-normal);
}

.stat-card:hover {
    border-color: var(--border-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.stat-card.highlight {
    background: linear-gradient(135deg, rgba(168, 85, 247, 0.1), rgba(59, 130, 246, 0.05));
    border-color: rgba(168, 85, 247, 0.3);
}

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

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

.stat-icon.blue {
    background: rgba(59, 130, 246, 0.15);
    color: var(--accent-blue);
    box-shadow: 0 0 20px var(--accent-blue-glow);
}

.stat-icon.green {
    background: rgba(34, 197, 94, 0.15);
    color: var(--accent-green);
    box-shadow: 0 0 20px var(--accent-green-glow);
}

.stat-icon.orange {
    background: rgba(249, 115, 22, 0.15);
    color: var(--accent-orange);
    box-shadow: 0 0 20px var(--accent-orange-glow);
}

.stat-icon.purple {
    background: rgba(168, 85, 247, 0.15);
    color: var(--accent-purple);
    box-shadow: 0 0 20px var(--accent-purple-glow);
}

.stat-info {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.stat-value {
    font-family: 'JetBrains Mono', monospace;
    font-size: 1.5rem;
    font-weight: 600;
}

.stat-label {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

/* ================================
   Table
================================ */
.table-container {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.table-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 24px;
    border-bottom: 1px solid var(--border-color);
}

.table-header h3 {
    font-size: 1.1rem;
    font-weight: 600;
}

.btn-refresh {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 16px;
    background: var(--bg-hover);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-family: inherit;
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
}

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

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

.table-wrapper {
    overflow-x: auto;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}

.data-table thead {
    background: var(--bg-tertiary);
}

.data-table th {
    padding: 14px 16px;
    text-align: left;
    font-weight: 600;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-secondary);
    white-space: nowrap;
    border-bottom: 1px solid var(--border-color);
}

.data-table td {
    padding: 14px 16px;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-secondary);
}

.data-table tbody tr {
    transition: background var(--transition-fast);
}

.data-table tbody tr:hover {
    background: var(--bg-hover);
}

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

.data-table td:first-child {
    font-family: 'JetBrains Mono', monospace;
    font-weight: 500;
    color: var(--accent-blue);
}

.data-table td:nth-child(8),
.data-table td:nth-child(9) {
    font-family: 'JetBrains Mono', monospace;
    color: var(--text-secondary);
}

.data-table td:last-child {
    font-family: 'JetBrains Mono', monospace;
    font-weight: 600;
    color: var(--accent-green);
}

.table-empty {
    display: none;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 60px 20px;
    color: var(--text-muted);
}

.table-empty.show {
    display: flex;
}

.table-empty svg {
    width: 64px;
    height: 64px;
    margin-bottom: 16px;
    opacity: 0.5;
}

.table-empty p {
    font-size: 0.95rem;
}

/* ================================
   Form
================================ */
.record-form {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 32px;
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    margin-bottom: 32px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

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

.form-group label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 500;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.form-group label svg {
    width: 16px;
    height: 16px;
    color: var(--text-muted);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 14px 16px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.95rem;
    transition: all var(--transition-fast);
}

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

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

.form-group select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%23606070' stroke-width='2'%3E%3Cpolyline points='6,9 12,15 18,9'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    background-size: 18px;
    padding-right: 40px;
}

.form-group textarea {
    resize: vertical;
    min-height: 80px;
}

.input-hint {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.total-display {
    padding: 14px 16px;
    background: linear-gradient(135deg, rgba(34, 197, 94, 0.1), rgba(34, 197, 94, 0.05));
    border: 1px solid rgba(34, 197, 94, 0.3);
    border-radius: var(--radius-md);
    font-family: 'JetBrains Mono', monospace;
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--accent-green);
}

/* Form Actions */
.form-actions {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    padding-top: 24px;
    border-top: 1px solid var(--border-color);
}

.btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 14px 24px;
    border: none;
    border-radius: var(--radius-md);
    font-family: inherit;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn svg {
    width: 18px;
    height: 18px;
}

.btn-secondary {
    background: var(--bg-hover);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
}

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

.btn-primary {
    background: linear-gradient(135deg, var(--accent-blue), #2563eb);
    color: white;
    box-shadow: 0 4px 16px var(--accent-blue-glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 24px var(--accent-blue-glow);
}

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

/* ================================
   Toast Notification
================================ */
.toast {
    position: fixed;
    bottom: 32px;
    right: 32px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 16px 20px;
    box-shadow: var(--shadow-lg);
    transform: translateY(100px);
    opacity: 0;
    transition: all var(--transition-normal);
    z-index: 1000;
}

.toast.show {
    transform: translateY(0);
    opacity: 1;
}

.toast.success {
    border-color: rgba(34, 197, 94, 0.3);
    background: linear-gradient(135deg, var(--bg-card), rgba(34, 197, 94, 0.05));
}

.toast.error {
    border-color: rgba(239, 68, 68, 0.3);
    background: linear-gradient(135deg, var(--bg-card), rgba(239, 68, 68, 0.05));
}

.toast-content {
    display: flex;
    align-items: center;
    gap: 12px;
}

.toast-icon {
    width: 24px;
    height: 24px;
    display: none;
}

.toast.success .toast-icon.success {
    display: block;
    color: var(--accent-green);
}

.toast.error .toast-icon.error {
    display: block;
    color: var(--accent-red);
}

.toast-message {
    font-weight: 500;
}

/* ================================
   Responsive
================================ */
@media (max-width: 1200px) {
    .stats-row {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 992px) {
    .sidebar {
        width: 72px;
    }
    
    .logo span,
    .nav-item span,
    .week-info {
        display: none;
    }
    
    .logo {
        justify-content: center;
        padding: 20px 12px;
    }
    
    .nav-item {
        justify-content: center;
        padding: 14px;
    }
    
    .main-content {
        margin-left: 72px;
        padding: 24px;
    }
    
    .form-grid {
        grid-template-columns: 1fr;
    }
    
    .view-header {
        flex-direction: column;
        gap: 20px;
    }
}

@media (max-width: 768px) {
    .stats-row {
        grid-template-columns: 1fr;
    }
    
    .week-navigator {
        width: 100%;
        justify-content: space-between;
    }
    
    .data-table {
        font-size: 0.8rem;
    }
    
    .data-table th,
    .data-table td {
        padding: 10px 12px;
    }
}

/* Loading State */
.loading {
    position: relative;
    pointer-events: none;
}

.loading::after {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(10, 10, 15, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: inherit;
}

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

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

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

::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

/* Badge for Technician */
.badge {
    display: inline-block;
    padding: 4px 10px;
    background: var(--bg-tertiary);
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
}

.badge.ibrahim { background: rgba(59, 130, 246, 0.2); color: var(--accent-blue); }
.badge.mehmet { background: rgba(34, 197, 94, 0.2); color: var(--accent-green); }
.badge.enes { background: rgba(249, 115, 22, 0.2); color: var(--accent-orange); }
.badge.ortak { background: rgba(168, 85, 247, 0.2); color: var(--accent-purple); }

/* ================================
   Action Buttons
================================ */
.action-buttons {
    display: flex;
    gap: 8px;
}

.btn-icon {
    width: 32px;
    height: 32px;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

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

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

.btn-icon.edit:hover {
    background: rgba(59, 130, 246, 0.15);
    color: var(--accent-blue);
    border-color: var(--accent-blue);
}

.btn-icon.delete:hover {
    background: rgba(239, 68, 68, 0.15);
    color: var(--accent-red);
    border-color: var(--accent-red);
}

/* ================================
   Modal
================================ */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
}

.modal-overlay.show {
    opacity: 1;
    visibility: visible;
}

.modal {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    width: 90%;
    max-width: 600px;
    max-height: 90vh;
    overflow-y: auto;
    transform: scale(0.9) translateY(20px);
    transition: all var(--transition-normal);
}

.modal-overlay.show .modal {
    transform: scale(1) translateY(0);
}

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

.modal-header h2 {
    font-size: 1.25rem;
    font-weight: 600;
}

.modal-close {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.modal-close:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.modal-close svg {
    width: 20px;
    height: 20px;
}

.modal-form {
    padding: 24px;
}

.modal-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    margin-bottom: 24px;
}

.modal-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
}

.modal-actions-right {
    display: flex;
    gap: 12px;
}

.btn-danger {
    background: rgba(239, 68, 68, 0.15);
    color: var(--accent-red);
    border: 1px solid rgba(239, 68, 68, 0.3);
}

.btn-danger:hover {
    background: rgba(239, 68, 68, 0.25);
    border-color: var(--accent-red);
}

/* Table last column fix for action buttons */
.data-table td:last-child {
    font-family: inherit;
    font-weight: normal;
    color: inherit;
}

.data-table td:nth-child(10) {
    font-family: 'JetBrains Mono', monospace;
    font-weight: 600;
    color: var(--accent-green);
}