/* ==========================================================================
   NetVera Admin Panel Modern Stilleri
   Responsive, Hızlı ve Temiz UI
   ========================================================================== */

:root {
    --adm-primary: #0284c7;
    --adm-primary-hover: #0369a1;
    --adm-sidebar-bg: #0f172a;
    --adm-sidebar-text: #94a3b8;
    --adm-sidebar-active: #38bdf8;
    --adm-sidebar-active-bg: rgba(56, 189, 248, 0.1);
    --adm-bg: #f8fafc;
    --adm-card-bg: #ffffff;
    --adm-text: #1e293b;
    --adm-muted: #64748b;
    --adm-border: #e2e8f0;
    --adm-success: #10b981;
    --adm-warning: #f59e0b;
    --adm-danger: #ef4444;
    --adm-info: #3b82f6;
    --adm-radius: 8px;
    --adm-shadow: 0 1px 3px rgba(0, 0, 0, 0.05), 0 1px 2px rgba(0, 0, 0, 0.03);
    --adm-shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.08), 0 2px 4px -1px rgba(0, 0, 0, 0.04);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    font-size: 14px;
    color: var(--adm-text);
    background-color: var(--adm-bg);
    line-height: 1.5;
}

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

a:hover {
    text-decoration: underline;
}

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

/* Sidebar */
.admin-sidebar {
    width: 260px;
    background-color: var(--adm-sidebar-bg);
    color: var(--adm-sidebar-text);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
    transition: transform 0.3s ease;
    z-index: 100;
}

.sidebar-header {
    padding: 20px 24px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.sidebar-brand {
    font-size: 17px;
    font-weight: 700;
    color: #ffffff;
    display: flex;
    align-items: center;
    gap: 10px;
}

.sidebar-brand span {
    color: var(--adm-sidebar-active);
}

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

.nav-section-title {
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: #475569;
    padding: 12px 12px 6px;
}

.nav-item {
    margin-bottom: 3px;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 14px;
    color: var(--adm-sidebar-text);
    border-radius: var(--adm-radius);
    font-weight: 500;
    transition: all 0.2s ease;
}

.nav-link:hover {
    background-color: rgba(255, 255, 255, 0.05);
    color: #ffffff;
    text-decoration: none;
}

.nav-link.active {
    background-color: var(--adm-sidebar-active-bg);
    color: var(--adm-sidebar-active);
    font-weight: 600;
}

.nav-link svg {
    width: 18px;
    height: 18px;
    stroke-width: 2;
    flex-shrink: 0;
}

.nav-badge {
    margin-left: auto;
    background-color: var(--adm-primary);
    color: #fff;
    font-size: 11px;
    padding: 2px 7px;
    border-radius: 12px;
    font-weight: 600;
}

/* Main Content Area */
.admin-main {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-width: 0;
}

/* Topbar */
.admin-topbar {
    height: 64px;
    background-color: #ffffff;
    border-bottom: 1px solid var(--adm-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 28px;
}

.topbar-left {
    display: flex;
    align-items: center;
    gap: 16px;
}

.menu-toggle-btn {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--adm-muted);
    display: none;
    padding: 6px;
}

.topbar-right {
    display: flex;
    align-items: center;
    gap: 20px;
}

.user-badge {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 500;
}

.user-avatar {
    width: 34px;
    height: 34px;
    border-radius: 50%;
    background-color: var(--adm-primary);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 13px;
}

.site-preview-link {
    display: flex;
    align-items: center;
    gap: 6px;
    color: var(--adm-muted);
    font-size: 13px;
}

/* Content Container */
.admin-content {
    padding: 28px;
    flex: 1;
}

/* Header & Breadcrumb */
.content-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    flex-wrap: wrap;
    gap: 16px;
}

.page-title {
    font-size: 22px;
    font-weight: 700;
    color: var(--adm-text);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    font-size: 13px;
    font-weight: 500;
    border-radius: var(--adm-radius);
    cursor: pointer;
    border: 1px solid transparent;
    transition: all 0.2s ease;
    text-decoration: none !important;
}

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

.btn-primary:hover {
    background-color: var(--adm-primary-hover);
}

.btn-secondary {
    background-color: #ffffff;
    border-color: var(--adm-border);
    color: var(--adm-text);
}

.btn-secondary:hover {
    background-color: #f1f5f9;
}

.btn-danger {
    background-color: var(--adm-danger);
    color: #ffffff;
}

.btn-danger:hover {
    background-color: #dc2626;
}

.btn-success {
    background-color: var(--adm-success);
    color: #ffffff;
}

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

/* Stat Cards / Widgets */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
    margin-bottom: 28px;
}

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

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

.stat-icon.primary { background-color: rgba(2, 132, 199, 0.1); color: var(--adm-primary); }
.stat-icon.success { background-color: rgba(16, 185, 129, 0.1); color: var(--adm-success); }
.stat-icon.warning { background-color: rgba(245, 158, 11, 0.1); color: var(--adm-warning); }
.stat-icon.danger  { background-color: rgba(239, 68, 68, 0.1); color: var(--adm-danger); }

.stat-content {
    flex: 1;
}

.stat-value {
    font-size: 24px;
    font-weight: 700;
    color: var(--adm-text);
    line-height: 1.2;
}

.stat-label {
    font-size: 13px;
    color: var(--adm-muted);
    margin-top: 2px;
}

/* Cards & Tables */
.card {
    background-color: var(--adm-card-bg);
    border: 1px solid var(--adm-border);
    border-radius: var(--adm-radius);
    box-shadow: var(--adm-shadow);
    margin-bottom: 24px;
    overflow: hidden;
}

.card-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--adm-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: #fafbfc;
}

.card-title {
    font-size: 15px;
    font-weight: 600;
    color: var(--adm-text);
}

.card-body {
    padding: 20px;
}

.table-responsive {
    width: 100%;
    overflow-x: auto;
}

table.data-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
}

table.data-table th {
    background-color: #f8fafc;
    color: #475569;
    font-weight: 600;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    padding: 12px 16px;
    border-bottom: 1px solid var(--adm-border);
}

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

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

table.data-table tr:hover td {
    background-color: #f8fafc;
}

/* Status Badges */
.badge {
    display: inline-block;
    padding: 4px 10px;
    font-size: 11px;
    font-weight: 600;
    border-radius: 9999px;
    text-transform: uppercase;
    letter-spacing: 0.02em;
}

.badge-success { background-color: #d1fae5; color: #065f46; }
.badge-warning { background-color: #fef3c7; color: #92400e; }
.badge-danger  { background-color: #fee2e2; color: #991b1b; }
.badge-info    { background-color: #e0f2fe; color: #075985; }
.badge-secondary { background-color: #f1f5f9; color: #475569; }

/* Form Controls */
.form-group {
    margin-bottom: 18px;
}

.form-label {
    display: block;
    font-weight: 500;
    margin-bottom: 6px;
    color: var(--adm-text);
}

.form-control {
    width: 100%;
    padding: 9px 13px;
    border: 1px solid var(--adm-border);
    border-radius: var(--adm-radius);
    font-size: 14px;
    background-color: #ffffff;
    color: var(--adm-text);
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.form-control:focus {
    outline: none;
    border-color: var(--adm-primary);
    box-shadow: 0 0 0 3px rgba(2, 132, 199, 0.15);
}

textarea.form-control {
    resize: vertical;
    min-height: 90px;
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 16px;
}

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

.form-check input[type="checkbox"] {
    width: 16px;
    height: 16px;
}

/* Tabs */
.tab-nav {
    display: flex;
    border-bottom: 1px solid var(--adm-border);
    gap: 8px;
    margin-bottom: 20px;
    overflow-x: auto;
}

.tab-link {
    padding: 10px 18px;
    color: var(--adm-muted);
    font-weight: 500;
    border-bottom: 2px solid transparent;
    text-decoration: none !important;
}

.tab-link:hover {
    color: var(--adm-text);
}

.tab-link.active {
    color: var(--adm-primary);
    border-bottom-color: var(--adm-primary);
    font-weight: 600;
}

/* Alerts */
.alert {
    padding: 14px 18px;
    border-radius: var(--adm-radius);
    margin-bottom: 20px;
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.alert-success { background-color: #d1fae5; border: 1px solid #6ee7b7; color: #065f46; }
.alert-error   { background-color: #fee2e2; border: 1px solid #fca5a5; color: #991b1b; }
.alert-info    { background-color: #e0f2fe; border: 1px solid #7dd3fc; color: #075985; }

/* Empty States */
.empty-state {
    text-align: center;
    padding: 48px 24px;
    color: var(--adm-muted);
}

.empty-state-icon {
    font-size: 40px;
    margin-bottom: 12px;
    opacity: 0.6;
}

.empty-state-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--adm-text);
    margin-bottom: 4px;
}

/* Calendar */
.calendar-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    border: 1px solid var(--adm-border);
    border-radius: var(--adm-radius);
    overflow: hidden;
}

.calendar-day-header {
    background-color: #f8fafc;
    padding: 10px;
    text-align: center;
    font-weight: 600;
    border-bottom: 1px solid var(--adm-border);
    border-right: 1px solid var(--adm-border);
}

.calendar-cell {
    min-height: 100px;
    padding: 8px;
    border-bottom: 1px solid var(--adm-border);
    border-right: 1px solid var(--adm-border);
    background-color: #ffffff;
}

.calendar-cell.other-month {
    background-color: #f8fafc;
    opacity: 0.6;
}

.calendar-date-number {
    font-weight: 600;
    margin-bottom: 6px;
}

.calendar-job-tag {
    display: block;
    background-color: var(--adm-sidebar-active-bg);
    color: var(--adm-primary);
    border: 1px solid rgba(2, 132, 199, 0.2);
    border-radius: 4px;
    padding: 3px 6px;
    font-size: 11px;
    margin-bottom: 4px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* Responsive Breakpoints */
@media (max-width: 992px) {
    .admin-sidebar {
        position: fixed;
        left: -260px;
        top: 0;
        bottom: 0;
    }

    .admin-sidebar.open {
        transform: translateX(260px);
    }

    .menu-toggle-btn {
        display: block;
    }

    .stats-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 600px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }

    .admin-topbar {
        padding: 0 16px;
    }

    .admin-content {
        padding: 16px;
    }

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