/* =============================================
   ระบบแจ้งซ่อม - Custom Styles
   Modern, Clean & Mobile First
   ============================================= */

:root {
    --primary: #4361ee;
    --primary-dark: #3a0ca3;
    --primary-light: #7209b7;
    --secondary: #4cc9f0;
    --success: #06d6a0;
    --warning: #ffd166;
    --danger: #ef476f;
    --info: #118ab2;
    --dark: #2b2d42;
    --light-bg: #f8f9fc;
    --card-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
    --card-hover-shadow: 0 8px 25px rgba(0, 0, 0, 0.12);
    --border-radius: 0.875rem;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
    transition: background-color 0.2s ease, border-color 0.2s ease;
}

body {
    font-family: 'Segoe UI', -apple-system, BlinkMacSystemFont, sans-serif;
    background-color: var(--light-bg);
    min-height: 100vh;
    color: var(--dark);
}

/* =============================================
   Navbar
   ============================================= */
.navbar {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%) !important;
    box-shadow: 0 2px 15px rgba(67, 97, 238, 0.3);
    padding: 0.5rem 1rem;
}

.navbar-brand {
    font-weight: 700;
    font-size: 1.1rem;
    letter-spacing: -0.5px;
}

.navbar-brand i {
    font-size: 1.3rem;
}

.nav-link {
    font-weight: 500;
    padding: 0.5rem 0.75rem !important;
    border-radius: 0.5rem;
    margin: 0 0.1rem;
    transition: var(--transition);
}

.nav-link:hover {
    background: rgba(255, 255, 255, 0.15);
}

.navbar .badge {
    font-size: 0.65rem;
    padding: 0.2rem 0.4rem;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

/* =============================================
   Login Page
   ============================================= */
.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
    background-size: 200% 200%;
    animation: gradientShift 8s ease infinite;
    padding: 1rem;
}

@keyframes gradientShift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

.login-card {
    width: 100%;
    max-width: 420px;
    padding: 2.5rem;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: 1.25rem;
    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.3);
    animation: fadeInUp 0.6s ease;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.login-card .logo {
    width: 90px;
    height: 90px;
    margin: 0 auto 1rem;
    display: block;
    border-radius: 50%;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.15);
}

.login-card h3 {
    font-weight: 700;
    color: var(--dark);
}

.login-card .form-control {
    border-radius: 0.5rem;
    padding: 0.6rem 0.75rem;
    border: 1.5px solid #e0e0e0;
    transition: var(--transition);
}

.login-card .form-control:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(67, 97, 238, 0.15);
}

.login-card .btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    border: none;
    border-radius: 0.5rem;
    font-weight: 600;
    letter-spacing: 0.3px;
    transition: var(--transition);
}

.login-card .btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(67, 97, 238, 0.4);
}

/* =============================================
   Dashboard Cards
   ============================================= */
.stat-card {
    border: none;
    border-radius: var(--border-radius);
    box-shadow: var(--card-shadow);
    transition: var(--transition);
    overflow: hidden;
    position: relative;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 100px;
    height: 100px;
    border-radius: 50%;
    opacity: 0.05;
    transform: translate(20%, -20%);
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--card-hover-shadow);
}

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

.stat-card .stat-icon {
    font-size: 2.5rem;
    opacity: 0.7;
}

.stat-card .stat-number {
    font-size: 2.2rem;
    font-weight: 800;
    line-height: 1;
    margin-bottom: 0.25rem;
}

.stat-card .text-muted {
    font-size: 0.8rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* =============================================
   Status & Priority Badges
   ============================================= */
.badge {
    font-weight: 600;
    padding: 0.35rem 0.65rem;
    border-radius: 0.4rem;
    font-size: 0.75rem;
    letter-spacing: 0.3px;
}

.badge-pending { 
    background: linear-gradient(135deg, #ffd166, #f4a261); 
    color: #000; 
}
.badge-assigned { 
    background: linear-gradient(135deg, #4cc9f0, #4895ef); 
    color: #fff; 
}
.badge-in_progress { 
    background: linear-gradient(135deg, #4361ee, #3a0ca3); 
    color: #fff; 
}
.badge-completed { 
    background: linear-gradient(135deg, #06d6a0, #059669); 
    color: #fff; 
}
.badge-cancelled { 
    background: linear-gradient(135deg, #ef476f, #d90429); 
    color: #fff; 
}

/* Priority side borders */
.priority-low { border-left: 4px solid var(--success); }
.priority-medium { border-left: 4px solid var(--warning); }
.priority-high { border-left: 4px solid #f77f00; }
.priority-urgent { border-left: 4px solid var(--danger); }

/* =============================================
   Cards General
   ============================================= */
.card {
    border: none;
    border-radius: var(--border-radius);
    box-shadow: var(--card-shadow);
    transition: var(--transition);
}

.card-header {
    background: white;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    padding: 1rem 1.25rem;
    font-weight: 600;
}

.card-header h5, .card-header h6 {
    font-weight: 700;
}

/* =============================================
   Request Cards (list)
   ============================================= */
.request-card {
    border: none;
    border-radius: var(--border-radius);
    box-shadow: var(--card-shadow);
    margin-bottom: 0.75rem;
    transition: var(--transition);
    cursor: pointer;
}

.request-card:hover {
    transform: translateX(5px);
    box-shadow: var(--card-hover-shadow);
}

/* =============================================
   Image Upload
   ============================================= */
.upload-preview {
    width: 100px;
    height: 100px;
    border: 2px dashed #d0d0d0;
    border-radius: 0.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    overflow: hidden;
    position: relative;
    transition: var(--transition);
    background: #fafafa;
}

.upload-preview:hover {
    border-color: var(--primary);
    background: rgba(67, 97, 238, 0.03);
}

.upload-preview img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.upload-preview .remove-btn {
    position: absolute;
    top: 4px;
    right: 4px;
    background: rgba(239, 71, 111, 0.9);
    color: white;
    border: none;
    border-radius: 50%;
    width: 24px;
    height: 24px;
    font-size: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
}

.upload-preview .remove-btn:hover {
    transform: scale(1.2);
    background: var(--danger);
}

/* =============================================
   Timeline
   ============================================= */
.timeline {
    position: relative;
    padding-left: 2rem;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 0.5rem;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom, var(--primary), var(--secondary));
    border-radius: 1px;
}

.timeline-item {
    position: relative;
    padding-bottom: 1.5rem;
    animation: fadeInUp 0.4s ease;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -1.65rem;
    top: 0.25rem;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--primary);
    border: 3px solid white;
    box-shadow: 0 0 0 2px var(--primary), 0 2px 5px rgba(0,0,0,0.1);
}

.timeline-item.completed::before {
    background: var(--success);
    box-shadow: 0 0 0 2px var(--success), 0 2px 5px rgba(0,0,0,0.1);
}

/* =============================================
   Tables
   ============================================= */
.table-responsive {
    border-radius: var(--border-radius);
    box-shadow: var(--card-shadow);
    overflow: hidden;
}

.table {
    margin-bottom: 0;
}

.table thead th {
    border-bottom: 2px solid rgba(67, 97, 238, 0.1);
    font-weight: 700;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: #666;
    padding: 0.85rem 1rem;
}

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

.table tbody tr:hover {
    background: rgba(67, 97, 238, 0.03);
}

.table tbody td {
    padding: 0.75rem 1rem;
    vertical-align: middle;
}

/* =============================================
   Buttons
   ============================================= */
.btn {
    border-radius: 0.5rem;
    font-weight: 600;
    transition: var(--transition);
    letter-spacing: 0.2px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    border: none;
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary));
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(67, 97, 238, 0.3);
}

.btn-success {
    background: linear-gradient(135deg, var(--success), #059669);
    border: none;
}

.btn-success:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(6, 214, 160, 0.3);
}

.btn-danger {
    background: linear-gradient(135deg, var(--danger), #d90429);
    border: none;
}

.btn-info {
    background: linear-gradient(135deg, var(--secondary), var(--info));
    border: none;
}

.btn-outline-primary {
    border: 1.5px solid var(--primary);
    color: var(--primary);
}

.btn-outline-primary:hover {
    background: var(--primary);
    transform: translateY(-1px);
}

/* =============================================
   Forms
   ============================================= */
.form-control, .form-select {
    border-radius: 0.5rem;
    border: 1.5px solid #e0e0e0;
    padding: 0.6rem 0.9rem;
    transition: var(--transition);
}

.form-control:focus, .form-select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(67, 97, 238, 0.1);
}

.form-label {
    font-weight: 600;
    font-size: 0.875rem;
    color: #555;
    margin-bottom: 0.4rem;
}

.input-group-text {
    background: linear-gradient(135deg, #f8f9fa, #e9ecef);
    border: 1.5px solid #e0e0e0;
    border-radius: 0.5rem;
}

/* =============================================
   Alerts
   ============================================= */
.alert {
    border: none;
    border-radius: 0.75rem;
    font-weight: 500;
    animation: fadeInUp 0.3s ease;
}

.alert-success {
    background: rgba(6, 214, 160, 0.1);
    color: #065f46;
    border-left: 4px solid var(--success);
}

.alert-danger {
    background: rgba(239, 71, 111, 0.1);
    color: #9b1c31;
    border-left: 4px solid var(--danger);
}

.alert-warning {
    background: rgba(255, 209, 102, 0.15);
    color: #92400e;
    border-left: 4px solid var(--warning);
}

.alert-info {
    background: rgba(76, 201, 240, 0.1);
    color: #0e5a78;
    border-left: 4px solid var(--secondary);
}

/* =============================================
   Page Title
   ============================================= */
h4 {
    font-weight: 800;
    color: var(--dark);
    letter-spacing: -0.5px;
}

/* =============================================
   Nav Tabs
   ============================================= */
.nav-tabs {
    border: none;
    background: white;
    border-radius: var(--border-radius);
    padding: 0.3rem;
    box-shadow: var(--card-shadow);
}

.nav-tabs .nav-link {
    border: none;
    border-radius: 0.6rem;
    font-weight: 600;
    color: #666;
    padding: 0.6rem 1rem;
    transition: var(--transition);
}

.nav-tabs .nav-link.active {
    background: var(--primary);
    color: white;
    box-shadow: 0 2px 8px rgba(67, 97, 238, 0.3);
}

.nav-tabs .nav-link:hover:not(.active) {
    background: rgba(67, 97, 238, 0.05);
    color: var(--primary);
}

/* =============================================
   Modal
   ============================================= */
.modal-content {
    border: none;
    border-radius: var(--border-radius);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
}

.modal-header {
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    padding: 1.25rem 1.5rem;
}

.modal-footer {
    border-top: 1px solid rgba(0, 0, 0, 0.05);
}

/* =============================================
   Empty State
   ============================================= */
.empty-state {
    text-align: center;
    padding: 3rem 1rem;
    color: #999;
}

.empty-state i {
    font-size: 4rem;
    opacity: 0.3;
    margin-bottom: 1rem;
    display: block;
}

.empty-state p {
    font-size: 1rem;
    font-weight: 500;
}

/* =============================================
   Duration Badge
   ============================================= */
.duration-badge {
    font-size: 0.75rem;
    padding: 0.25rem 0.5rem;
    border-radius: 0.3rem;
    font-weight: 600;
}

/* =============================================
   Action Buttons
   ============================================= */
.action-btns .btn {
    padding: 0.3rem 0.5rem;
    font-size: 0.8rem;
    border-radius: 0.4rem;
}

.action-btns .btn i {
    font-size: 0.85rem;
}

/* =============================================
   Scrollbar
   ============================================= */
::-webkit-scrollbar {
    width: 6px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: rgba(0, 0, 0, 0.15);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(0, 0, 0, 0.3);
}

/* =============================================
   Utility classes
   ============================================= */
.fade-in {
    animation: fadeInUp 0.5s ease;
}

.text-gradient {
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* =============================================
   Responsive - Mobile
   ============================================= */
@media (max-width: 768px) {
    .container-fluid {
        padding-left: 0.75rem;
        padding-right: 0.75rem;
    }

    .stat-card .stat-number {
        font-size: 1.6rem;
    }

    .stat-card .stat-icon {
        font-size: 2rem;
    }

    .stat-card .card-body {
        padding: 1rem;
    }

    .navbar-brand {
        font-size: 0.95rem;
    }

    .table thead th {
        font-size: 0.7rem;
        padding: 0.6rem 0.5rem;
    }

    .table tbody td {
        padding: 0.6rem 0.5rem;
        font-size: 0.85rem;
    }

    .btn {
        font-size: 0.85rem;
    }

    .upload-preview {
        width: 85px;
        height: 85px;
    }

    .card-header {
        padding: 0.75rem 1rem;
    }

    h4 {
        font-size: 1.25rem;
    }

    .nav-tabs .nav-link {
        padding: 0.5rem 0.7rem;
        font-size: 0.85rem;
    }
}

@media (max-width: 576px) {
    .login-card {
        margin: 0.5rem;
        padding: 1.75rem;
    }

    h1, .h1 { font-size: 1.4rem; }
    h2, .h2 { font-size: 1.2rem; }

    .request-card .card-body {
        padding: 0.75rem !important;
    }
}

/* =============================================
   Loading
   ============================================= */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.9);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    backdrop-filter: blur(3px);
}

.spinner-grow-sm {
    width: 0.5rem;
    height: 0.5rem;
}

/* =============================================
   Print
   ============================================= */
@media print {
    .navbar, .btn, .nav-tabs, .action-btns {
        display: none !important;
    }
    .card {
        box-shadow: none;
        border: 1px solid #ddd;
    }
}