/* =====================================================
   BARAN ELEKTRONİK - Teknik Servis Takip Sistemi
   Açık Tema - Modern & Responsive
   ===================================================== */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&display=swap');

:root {
    --primary: #2563eb;
    --primary-light: #3b82f6;
    --primary-dark: #1d4ed8;
    --primary-bg: #eff6ff;
    --secondary: #64748b;
    --success: #10b981;
    --success-bg: #ecfdf5;
    --warning: #f59e0b;
    --warning-bg: #fffbeb;
    --danger: #ef4444;
    --danger-bg: #fef2f2;
    --info: #06b6d4;
    --info-bg: #ecfeff;
    --dark: #0f172a;
    --body-bg: #f1f5f9;
    --card-bg: #ffffff;
    --border: #e2e8f0;
    --text: #334155;
    --text-light: #94a3b8;
    --text-muted: #64748b;
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.04);
    --shadow: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.07), 0 2px 4px -1px rgba(0,0,0,0.04);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.07), 0 4px 6px -2px rgba(0,0,0,0.03);
    --radius: 10px;
    --radius-lg: 16px;
    --transition: all 0.2s ease;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
    font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--body-bg);
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
}

/* ===== LAYOUT ===== */
.app-wrapper {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: 260px;
    background: var(--card-bg);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 100;
    transition: transform 0.3s ease;
}

.sidebar-brand {
    padding: 24px 20px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    gap: 12px;
}

.sidebar-brand .brand-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 18px;
    flex-shrink: 0;
}

.sidebar-brand h2 {
    font-size: 14px;
    font-weight: 700;
    color: var(--dark);
    line-height: 1.3;
}

.sidebar-brand small {
    font-size: 11px;
    color: var(--text-light);
    font-weight: 400;
}

.sidebar-nav {
    flex: 1;
    padding: 16px 12px;
    overflow-y: auto;
}

.nav-label {
    font-size: 10px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.2px;
    color: var(--text-light);
    padding: 12px 12px 8px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    border-radius: 8px;
    color: var(--text-muted);
    text-decoration: none;
    font-size: 13.5px;
    font-weight: 500;
    transition: var(--transition);
    margin-bottom: 2px;
}

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

.nav-item.active {
    background: var(--primary-bg);
    color: var(--primary);
    font-weight: 600;
}

.nav-item i {
    font-size: 16px;
    width: 20px;
    text-align: center;
}

.sidebar-footer {
    padding: 16px 20px;
    border-top: 1px solid var(--border);
}

.user-info {
    display: flex;
    align-items: center;
    gap: 10px;
}

.user-avatar {
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, var(--primary-light), var(--primary));
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-weight: 700;
    font-size: 14px;
    flex-shrink: 0;
}

.user-details {
    flex: 1;
    min-width: 0;
}

.user-details .name {
    font-size: 13px;
    font-weight: 600;
    color: var(--dark);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.user-details .role {
    font-size: 11px;
    color: var(--text-light);
}

/* Main Content */
.main-content {
    flex: 1;
    margin-left: 260px;
    padding: 0;
    min-height: 100vh;
}

.top-bar {
    background: var(--card-bg);
    border-bottom: 1px solid var(--border);
    padding: 16px 32px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 50;
}

.top-bar h1 {
    font-size: 18px;
    font-weight: 700;
    color: var(--dark);
}

.mobile-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 22px;
    color: var(--text);
    cursor: pointer;
    padding: 4px;
}

.content-area {
    padding: 28px 32px;
}

/* ===== CARDS ===== */
.card {
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
    margin-bottom: 24px;
    overflow: hidden;
}

.card-header {
    padding: 18px 24px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.card-header h3 {
    font-size: 15px;
    font-weight: 700;
    color: var(--dark);
}

.card-body {
    padding: 24px;
}

/* ===== STATS GRID ===== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 28px;
}

.stat-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 22px 24px;
    display: flex;
    align-items: flex-start;
    gap: 16px;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
}

.stat-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-1px);
}

.stat-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    flex-shrink: 0;
}

.stat-icon.blue { background: var(--primary-bg); color: var(--primary); }
.stat-icon.green { background: var(--success-bg); color: var(--success); }
.stat-icon.orange { background: var(--warning-bg); color: var(--warning); }
.stat-icon.red { background: var(--danger-bg); color: var(--danger); }
.stat-icon.cyan { background: var(--info-bg); color: var(--info); }

.stat-info h4 {
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-light);
    margin-bottom: 4px;
}

.stat-info .number {
    font-size: 28px;
    font-weight: 800;
    color: var(--dark);
    line-height: 1.1;
}

/* ===== TABLE ===== */
.table-wrapper {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

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

table th {
    padding: 12px 16px;
    text-align: left;
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-light);
    background: var(--body-bg);
    border-bottom: 1px solid var(--border);
    white-space: nowrap;
}

table td {
    padding: 14px 16px;
    font-size: 13.5px;
    border-bottom: 1px solid var(--border);
    vertical-align: middle;
}

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

table tbody tr:hover {
    background: #f8fafc;
}

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

/* ===== BADGES ===== */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 10px;
    border-radius: 6px;
    font-size: 11.5px;
    font-weight: 600;
    white-space: nowrap;
}

.badge-info { background: var(--info-bg); color: #0891b2; }
.badge-primary { background: var(--primary-bg); color: var(--primary); }
.badge-warning { background: var(--warning-bg); color: #d97706; }
.badge-secondary { background: #f1f5f9; color: var(--secondary); }
.badge-success { background: var(--success-bg); color: #059669; }
.badge-dark { background: #1e293b; color: #fff; }
.badge-danger { background: var(--danger-bg); color: var(--danger); }

.priority-low { color: var(--secondary); }
.priority-normal { color: var(--primary); }
.priority-high { color: var(--warning); font-weight: 700; }
.priority-urgent { color: var(--danger); font-weight: 700; }

/* ===== BUTTONS ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 9px 18px;
    border: none;
    border-radius: 8px;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    white-space: nowrap;
    font-family: inherit;
}

.btn-primary {
    background: var(--primary);
    color: #fff;
}

.btn-primary:hover {
    background: var(--primary-dark);
    box-shadow: 0 4px 12px rgba(37,99,235,0.3);
}

.btn-success { background: var(--success); color: #fff; }
.btn-success:hover { background: #059669; }

.btn-warning { background: var(--warning); color: #fff; }
.btn-warning:hover { background: #d97706; }

.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { background: #dc2626; }

.btn-outline {
    background: transparent;
    border: 1.5px solid var(--border);
    color: var(--text-muted);
}

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

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

.btn-lg {
    padding: 12px 28px;
    font-size: 15px;
}

/* ===== FORMS ===== */
.form-group {
    margin-bottom: 18px;
}

.form-group label {
    display: block;
    font-size: 12.5px;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 6px;
}

.form-group label .required {
    color: var(--danger);
}

.form-control {
    width: 100%;
    padding: 10px 14px;
    border: 1.5px solid var(--border);
    border-radius: 8px;
    font-size: 13.5px;
    font-family: inherit;
    color: var(--text);
    background: var(--card-bg);
    transition: var(--transition);
    outline: none;
}

.form-control:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37,99,235,0.1);
}

.form-control::placeholder {
    color: var(--text-light);
}

select.form-control {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2394a3b8' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 36px;
}

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

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 16px;
}

.form-row .form-group {
    margin-bottom: 0;
}

/* ===== ALERTS ===== */
.alert {
    padding: 14px 18px;
    border-radius: var(--radius);
    margin-bottom: 20px;
    font-size: 13.5px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.alert-success { background: var(--success-bg); color: #065f46; border: 1px solid #a7f3d0; }
.alert-danger { background: var(--danger-bg); color: #991b1b; border: 1px solid #fecaca; }
.alert-warning { background: var(--warning-bg); color: #92400e; border: 1px solid #fde68a; }
.alert-info { background: var(--info-bg); color: #155e75; border: 1px solid #a5f3fc; }

/* ===== LOGIN PAGE ===== */
.login-wrapper {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #e0f2fe 0%, #f1f5f9 50%, #ede9fe 100%);
    padding: 20px;
}

.login-card {
    width: 100%;
    max-width: 420px;
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
}

.login-header {
    text-align: center;
    padding: 40px 40px 28px;
}

.login-header .logo-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    border-radius: 16px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 28px;
    margin-bottom: 18px;
    box-shadow: 0 8px 24px rgba(37,99,235,0.3);
}

.login-header h1 {
    font-size: 20px;
    font-weight: 800;
    color: var(--dark);
    margin-bottom: 6px;
}

.login-header p {
    color: var(--text-light);
    font-size: 13px;
}

.login-body {
    padding: 0 40px 40px;
}

.login-body .form-control {
    padding: 12px 16px;
    font-size: 14px;
}

.login-body .btn {
    width: 100%;
    padding: 13px;
    font-size: 15px;
    justify-content: center;
    margin-top: 6px;
}

/* ===== TRACKING PAGE ===== */
.tracking-wrapper {
    min-height: 100vh;
    background: linear-gradient(135deg, #e0f2fe 0%, #f1f5f9 50%, #ede9fe 100%);
    padding: 40px 20px;
}

.tracking-container {
    max-width: 700px;
    margin: 0 auto;
}

.tracking-header {
    text-align: center;
    margin-bottom: 32px;
}

.tracking-header .logo-icon {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    border-radius: 14px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 24px;
    margin-bottom: 16px;
    box-shadow: 0 6px 20px rgba(37,99,235,0.25);
}

.tracking-header h1 {
    font-size: 22px;
    font-weight: 800;
    color: var(--dark);
}

.tracking-header p {
    color: var(--text-light);
    font-size: 14px;
    margin-top: 4px;
}

.tracking-search {
    display: flex;
    gap: 10px;
    margin-bottom: 32px;
}

.tracking-search .form-control {
    padding: 14px 18px;
    font-size: 15px;
    border-radius: var(--radius);
    letter-spacing: 1px;
    text-transform: uppercase;
}

.tracking-search .btn {
    padding: 14px 28px;
    font-size: 15px;
    border-radius: var(--radius);
}

/* Timeline */
.timeline {
    position: relative;
    padding-left: 32px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 11px;
    top: 8px;
    bottom: 8px;
    width: 2px;
    background: var(--border);
}

.timeline-item {
    position: relative;
    padding-bottom: 24px;
}

.timeline-item:last-child {
    padding-bottom: 0;
}

.timeline-dot {
    position: absolute;
    left: -32px;
    top: 4px;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--card-bg);
    border: 3px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
}

.timeline-dot.active {
    border-color: var(--primary);
    background: var(--primary);
}

.timeline-dot.active::after {
    content: '';
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #fff;
}

.timeline-dot.completed {
    border-color: var(--success);
    background: var(--success);
    color: #fff;
    font-size: 12px;
}

.timeline-content h4 {
    font-size: 14px;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 2px;
}

.timeline-content p {
    font-size: 12.5px;
    color: var(--text-light);
}

/* ===== MODAL ===== */
.modal-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(15,23,42,0.4);
    backdrop-filter: blur(4px);
    z-index: 1000;
    justify-content: center;
    align-items: flex-start;
    padding: 40px 20px;
    overflow-y: auto;
}

.modal-overlay.active {
    display: flex;
}

.modal {
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    width: 100%;
    max-width: 640px;
    animation: modalIn 0.25s ease;
}

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

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

.modal-header h3 {
    font-size: 16px;
    font-weight: 700;
}

.modal-close {
    background: none;
    border: none;
    font-size: 20px;
    color: var(--text-light);
    cursor: pointer;
    padding: 4px;
    line-height: 1;
}

.modal-body {
    padding: 24px;
}

.modal-footer {
    padding: 16px 24px;
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: flex-end;
    gap: 10px;
}

/* ===== UTILITY ===== */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-muted { color: var(--text-light); }
.text-small { font-size: 12px; }
.text-primary { color: var(--primary); }
.mt-2 { margin-top: 8px; }
.mt-4 { margin-top: 16px; }
.mb-2 { margin-bottom: 8px; }
.mb-4 { margin-bottom: 16px; }
.d-flex { display: flex; }
.gap-2 { gap: 8px; }
.gap-3 { gap: 12px; }
.align-center { align-items: center; }
.justify-between { justify-content: space-between; }
.flex-wrap { flex-wrap: wrap; }

.empty-state {
    text-align: center;
    padding: 48px 24px;
    color: var(--text-light);
}

.empty-state i {
    font-size: 48px;
    margin-bottom: 16px;
    opacity: 0.3;
}

.empty-state h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-muted);
    margin-bottom: 6px;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
    .stats-grid {
        grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    }
}

@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
    }

    .sidebar.open {
        transform: translateX(0);
        box-shadow: 0 0 40px rgba(0,0,0,0.15);
    }

    .mobile-toggle {
        display: block;
    }

    .main-content {
        margin-left: 0;
    }

    .top-bar {
        padding: 14px 20px;
    }

    .content-area {
        padding: 20px 16px;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }

    .stat-card {
        padding: 16px;
        flex-direction: column;
        gap: 10px;
    }

    .stat-info .number {
        font-size: 22px;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .card-body {
        padding: 16px;
    }

    .tracking-search {
        flex-direction: column;
    }

    .login-body, .login-header {
        padding-left: 24px;
        padding-right: 24px;
    }

    .modal {
        margin: 10px;
    }

    .btn-responsive-hide {
        display: none;
    }
}

@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }

    .top-bar h1 {
        font-size: 15px;
    }
}

/* ===== SIDEBAR OVERLAY ===== */
.sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.3);
    z-index: 99;
}

.sidebar-overlay.active {
    display: block;
}

/* Print */
@media print {
    .sidebar, .top-bar, .btn, .mobile-toggle { display: none !important; }
    .main-content { margin-left: 0 !important; }
    .content-area { padding: 0 !important; }
}