/* =====================================================
   STOK PROGRAMI - STYLESHEET
   ===================================================== */

/* Variables */
:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --success: #16a34a;
    --danger: #dc2626;
    --warning: #d97706;
    --info: #0891b2;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    --sidebar-width: 250px;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-size: 14px;
    line-height: 1.5;
    color: var(--gray-800);
    background: var(--gray-100);
}

a {
    color: var(--primary);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

/* Layout */
.layout {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: var(--sidebar-width);
    background: var(--gray-800);
    color: white;
    display: flex;
    flex-direction: column;
    position: fixed;
    height: 100vh;
    overflow-y: auto;
}

.sidebar::-webkit-scrollbar {
    width: 6px;
}

.sidebar::-webkit-scrollbar-track {
    background: var(--gray-800);
}

.sidebar::-webkit-scrollbar-thumb {
    background: var(--gray-600);
    border-radius: 3px;
}

.sidebar::-webkit-scrollbar-thumb:hover {
    background: var(--gray-500);
}

.sidebar-header {
    padding: 18px 20px;
    border-bottom: 1px solid var(--gray-700);
    background: rgba(0, 0, 0, 0.1);
}

.logo {
    font-size: 16px;
    font-weight: 700;
    color: white;
    margin: 0;
}

.sidebar-nav {
    flex: 1;
    padding: 10px 0;
}

.nav-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 12px 10px 20px;
    color: var(--gray-300);
    text-decoration: none;
    transition: all 0.2s;
    font-size: 13px;
}

.nav-item:hover {
    background: var(--gray-700);
    color: white;
    text-decoration: none;
}

.nav-item.active {
    background: var(--primary);
    color: white;
}

.nav-item.sub {
    padding-left: 35px;
    font-size: 12px;
    color: var(--gray-400);
}

.nav-item.sub:hover {
    color: white;
}

.nav-divider {
    height: 1px;
    background: var(--gray-700);
    margin: 8px 0;
}

.nav-section-title {
    padding: 15px 20px 8px;
    font-size: 10px;
    text-transform: uppercase;
    color: var(--gray-500);
    letter-spacing: 1px;
    font-weight: 600;
}

/* Nav Badge (Menü Sayaçları) */
.nav-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 20px;
    padding: 2px 7px;
    font-size: 11px;
    font-weight: 600;
    border-radius: 10px;
    white-space: nowrap;
    flex-shrink: 0;
}

.nav-badge.warning {
    background: #ffc107;
    color: #212529;
}

.nav-badge.danger {
    background: #dc3545;
    color: #fff;
}

.nav-badge.info {
    background: #0dcaf0;
    color: #000;
}

.nav-badge.success {
    background: #28a745;
    color: #fff;
}

.nav-item.active .nav-badge.warning {
    background: #ffc107;
    color: #212529;
}

.nav-item.active .nav-badge.danger {
    background: #dc3545;
    color: #fff;
}

.nav-item.active .nav-badge.info {
    background: #0dcaf0;
    color: #000;
}

.nav-item.active .nav-badge.success {
    background: #28a745;
    color: #fff;
}

.sidebar-footer {
    padding: 15px 20px;
    border-top: 1px solid var(--gray-700);
    background: rgba(0, 0, 0, 0.1);
    font-size: 12px;
}

.user-info {
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.user-info::before {
    content: '\f007';
    font-family: 'Font Awesome 5 Free';
    font-weight: 900;
    width: 32px;
    height: 32px;
    background: var(--gray-700);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    color: var(--gray-400);
}

.user-info-text strong {
    display: block;
    font-size: 13px;
}

.user-info-text small {
    color: var(--gray-400);
    font-size: 11px;
}

.logout-form .btn {
    width: 100%;
    background: var(--gray-700);
    border-color: var(--gray-600);
    color: var(--gray-300);
    font-size: 12px;
}

.logout-form .btn:hover {
    background: var(--gray-600);
    color: white;
}

.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    min-height: 100vh;
}

.content-header {
    background: white;
    padding: 20px 30px;
    border-bottom: 1px solid var(--gray-200);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.content-header h2 {
    font-size: 20px;
    font-weight: 600;
    margin: 0;
}

.header-actions {
    display: flex;
    gap: 10px;
    align-items: center;
}

.serial-search-form .input-group {
    display: flex;
}

.serial-search-form .form-control {
    border-radius: 4px 0 0 4px;
}

.serial-search-form .btn {
    border-radius: 0 4px 4px 0;
}

.content-body {
    padding: 30px;
}

/* Guest Layout */
.guest-layout {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--gray-800) 0%, var(--gray-900) 100%);
}

.login-container {
    width: 100%;
    max-width: 400px;
    padding: 20px;
}

.login-box {
    background: white;
    padding: 40px;
    border-radius: 8px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.2);
}

.login-box h1 {
    text-align: center;
    margin-bottom: 10px;
    color: var(--primary);
}

.login-box h2 {
    text-align: center;
    font-size: 16px;
    color: var(--gray-500);
    margin-bottom: 30px;
    font-weight: normal;
}

/* Cards */
.card {
    background: white;
    border-radius: 8px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
    margin-bottom: 20px;
}

.card-header {
    padding: 15px 20px;
    border-bottom: 1px solid var(--gray-200);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.card-header h3 {
    font-size: 16px;
    font-weight: 600;
    margin: 0;
}

.card-body {
    padding: 20px;
}

.card-footer {
    padding: 15px 20px;
    border-top: 1px solid var(--gray-200);
    background: var(--gray-50);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 8px 16px;
    font-size: 14px;
    font-weight: 500;
    border: 1px solid var(--gray-300);
    border-radius: 6px;
    background: white;
    color: var(--gray-700);
    cursor: pointer;
    text-decoration: none;
    transition: all 0.2s;
}

/* Base btn hover - only for non-colored buttons */
.sidebar-footer .btn:hover,
.btn.btn-outline-secondary:hover {
    background: #424242;
    color: white;
    text-decoration: none;
}

/* Ensure Bootstrap colored buttons maintain their hover states */
.btn-success:hover { background-color: #138a3c !important; border-color: #138a3c !important; }
.btn-primary:hover { background-color: #1d4ed8 !important; border-color: #1d4ed8 !important; }
.btn-danger:hover { background-color: #b91c1c !important; border-color: #b91c1c !important; }
.btn-warning:hover { background-color: #d97706 !important; border-color: #d97706 !important; }
.btn-info:hover { background-color: #0891b2 !important; border-color: #0891b2 !important; }

.btn-primary,
a.btn-primary {
    background: var(--primary);
    border-color: var(--primary);
    color: white !important;
}

.btn-primary:hover,
a.btn-primary:hover {
    background: var(--primary-dark);
    color: white !important;
    text-decoration: none;
}

.btn-success,
a.btn-success {
    background: var(--success);
    border-color: var(--success);
    color: white !important;
}

.btn-success:hover,
a.btn-success:hover {
    color: white !important;
    text-decoration: none;
}

.btn-danger,
a.btn-danger {
    background: var(--danger);
    border-color: var(--danger);
    color: white !important;
}

.btn-danger:hover,
a.btn-danger:hover {
    color: white !important;
    text-decoration: none;
}

.btn-warning,
a.btn-warning {
    background: var(--warning);
    border-color: var(--warning);
    color: white !important;
}

.btn-warning:hover,
a.btn-warning:hover {
    color: white !important;
    text-decoration: none;
}

.btn-info,
a.btn-info {
    background: var(--info);
    border-color: var(--info);
    color: white !important;
}

.btn-info:hover,
a.btn-info:hover {
    color: white !important;
    text-decoration: none;
}

.btn-secondary {
    background: var(--gray-200);
    border-color: var(--gray-200);
}

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

.btn-block {
    display: block;
    width: 100%;
}

.btn-group {
    display: flex;
    gap: 5px;
}

/* Forms */
.form-group {
    margin-bottom: 15px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: 500;
    color: var(--gray-700);
}

.form-control {
    display: block;
    width: 100%;
    padding: 8px 12px;
    font-size: 14px;
    border: 1px solid var(--gray-300);
    border-radius: 6px;
    transition: border-color 0.2s;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-control.is-invalid {
    border-color: var(--danger);
}

.invalid-feedback {
    color: var(--danger);
    font-size: 12px;
    margin-top: 5px;
}

.form-row {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

.form-row .form-group {
    flex: 1;
    min-width: 200px;
}

.form-check {
    display: flex;
    align-items: center;
    gap: 8px;
}

.form-check-input {
    width: 18px;
    height: 18px;
}

.form-actions {
    padding-top: 20px;
    border-top: 1px solid var(--gray-200);
    display: flex;
    gap: 10px;
}

/* Tables */
.table {
    width: 100%;
    border-collapse: collapse;
}

.table th,
.table td {
    padding: 12px 15px;
    text-align: left;
    border-bottom: 1px solid var(--gray-200);
}

.table th {
    background: var(--gray-50);
    font-weight: 600;
    color: var(--gray-600);
    font-size: 12px;
    text-transform: uppercase;
}

.table tbody tr:hover {
    background: var(--gray-50);
}

.table-sm th,
.table-sm td {
    padding: 8px 10px;
}

.table-details th {
    width: 150px;
    color: var(--gray-500);
    font-weight: normal;
}

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

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

.text-muted {
    color: var(--gray-500);
}

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

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

/* Alerts */
.alert {
    padding: 12px 20px;
    border-radius: 6px;
    margin-bottom: 20px;
}

.alert-success {
    background: #dcfce7;
    color: #166534;
    border: 1px solid #86efac;
}

.alert-danger {
    background: #fee2e2;
    color: #991b1b;
    border: 1px solid #fca5a5;
}

.alert-warning {
    background: #fef3c7;
    color: #92400e;
    border: 1px solid #fcd34d;
}

.alert-info {
    background: #e0f2fe;
    color: #075985;
    border: 1px solid #7dd3fc;
}

/* Badges */
.badge {
    display: inline-block;
    padding: 3px 8px;
    font-size: 11px;
    font-weight: 600;
    border-radius: 4px;
    text-transform: uppercase;
}

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

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

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

.badge-info {
    background: #e0f2fe;
    color: #075985;
}

.badge-secondary {
    background: var(--gray-200);
    color: var(--gray-700);
}

/* Stats */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stat-card {
    background: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

.stat-value {
    font-size: 32px;
    font-weight: 700;
    color: var(--gray-800);
}

.stat-label {
    color: var(--gray-500);
    font-size: 14px;
}

.stat-card.warning .stat-value {
    color: var(--warning);
}

/* Dashboard Grid */
.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 20px;
}

/* Quick Actions */
.quick-actions {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

/* Page Header */
.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.page-header-actions {
    display: flex;
    gap: 10px;
}

/* Filter Form */
.filter-form .form-row {
    align-items: flex-end;
}

/* Row/Col Grid */
.row {
    display: flex;
    flex-wrap: wrap;
    margin: 0 -10px;
}

.col-md-4 {
    flex: 0 0 33.333%;
    max-width: 33.333%;
    padding: 0 10px;
}

.col-md-6 {
    flex: 0 0 50%;
    max-width: 50%;
    padding: 0 10px;
}

.col-md-8 {
    flex: 0 0 66.666%;
    max-width: 66.666%;
    padding: 0 10px;
}

/* Reports */
.reports-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.report-list {
    list-style: none;
}

.report-list li {
    border-bottom: 1px solid var(--gray-200);
}

.report-list li:last-child {
    border-bottom: none;
}

.report-list a {
    display: block;
    padding: 15px 0;
    color: var(--gray-800);
}

.report-list a:hover {
    text-decoration: none;
    color: var(--primary);
}

.report-list a strong {
    display: block;
    margin-bottom: 5px;
}

.report-list a span {
    font-size: 13px;
    color: var(--gray-500);
}

/* Error Page */
.error-page {
    text-align: center;
    padding: 100px 20px;
}

.error-page h1 {
    font-size: 120px;
    color: var(--gray-300);
    line-height: 1;
}

.error-page h2 {
    margin: 20px 0;
    color: var(--gray-600);
}

/* Sticky */
.sticky-top {
    position: sticky;
    top: 20px;
}

/* Margins */
.mb-3 {
    margin-bottom: 20px;
}

.mt-3 {
    margin-top: 20px;
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 20px;
    color: var(--gray-700);
    cursor: pointer;
    padding: 5px 10px;
    margin-right: 10px;
}

.mobile-menu-toggle:hover {
    color: var(--primary);
}

/* Header Left */
.header-left {
    display: flex;
    align-items: center;
}

.header-left h2 {
    margin: 0;
}

/* Sidebar Overlay */
.sidebar-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 999;
    opacity: 0;
    transition: opacity 0.3s;
}

.sidebar-overlay.active {
    opacity: 1;
}

/* Responsive */
@media (max-width: 992px) {
    .col-md-4, .col-md-6, .col-md-8 {
        flex: 0 0 100%;
        max-width: 100%;
    }
}

@media (max-width: 768px) {
    /* Mobile Menu Toggle */
    .mobile-menu-toggle {
        display: block;
    }

    /* Sidebar */
    .sidebar {
        position: fixed;
        left: -250px;
        z-index: 1000;
        transition: left 0.3s ease;
    }

    .sidebar.open {
        left: 0;
    }

    /* Overlay */
    .sidebar-overlay {
        display: block;
        pointer-events: none;
    }

    .sidebar-overlay.active {
        pointer-events: auto;
    }

    /* Main Content */
    .main-content {
        margin-left: 0;
    }

    /* Content Header */
    .content-header {
        padding: 15px 20px;
        flex-wrap: wrap;
        gap: 10px;
    }

    .content-header h2 {
        font-size: 18px;
    }

    /* Hide search on mobile */
    .serial-search-form {
        display: none;
    }

    /* Content Body */
    .content-body {
        padding: 15px;
    }

    /* Stats Grid */
    .stats-grid {
        grid-template-columns: 1fr 1fr;
    }

    /* Dashboard Grid */
    .dashboard-grid {
        grid-template-columns: 1fr;
    }

    /* Tables */
    .table {
        font-size: 13px;
    }

    .table th,
    .table td {
        padding: 8px 10px;
    }

    /* Buttons */
    .btn {
        padding: 6px 12px;
        font-size: 13px;
    }

    .btn-sm {
        padding: 4px 8px;
        font-size: 11px;
    }

    /* Cards */
    .card-body {
        padding: 15px;
    }

    /* Page Header */
    .page-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }

    .page-header-actions {
        width: 100%;
    }

    .page-header-actions .btn {
        flex: 1;
    }
}

@media (max-width: 576px) {
    /* Stats Grid - single column on very small screens */
    .stats-grid {
        grid-template-columns: 1fr;
    }

    /* Form Row */
    .form-row {
        flex-direction: column;
    }

    .form-row .form-group {
        min-width: 100%;
    }

    /* Tables - horizontal scroll */
    .table-responsive {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    /* Alerts */
    .alert {
        padding: 10px 15px;
        font-size: 13px;
    }
}