/* Modern Admin Dashboard - GitHub Light Style */
:root {
    --color-canvas: #ffffff;
    --color-canvas-subtle: #f6f8fa;
    --color-border: #d0d7de;
    --color-border-muted: #e0e6eb;
    --color-fg-default: #1f2328;
    --color-fg-muted: #656d76;
    --color-accent: #0969da;
    --color-accent-emphasis: #0550ae;
    --color-success: #1a7f37;
    --color-success-emphasis: #116329;
    --color-danger: #cf222e;
    --sidebar-width: 260px;
    --header-height: 64px;
    --border-radius: 6px;
    --shadow-sm: 0 1px 0 rgba(31, 35, 40, 0.04);
    --font-stack: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Noto Sans', Helvetica, Arial, sans-serif;
}

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

body {
    font-family: var(--font-stack);
    font-size: 14px;
    line-height: 1.5;
    color: var(--color-fg-default);
    background-color: var(--color-canvas-subtle);
}

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

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

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

.sidebar-brand {
    font-size: 18px;
    font-weight: 600;
    color: var(--color-fg-default);
    text-decoration: none;
}

.sidebar-nav {
    flex: 1;
    padding: 16px 0;
}

.nav-item {
    list-style: none;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 20px;
    color: var(--color-fg-default);
    text-decoration: none;
    font-weight: 500;
    transition: background-color 0.15s;
    border-left: 3px solid transparent;
}

.nav-link:hover {
    background-color: var(--color-canvas-subtle);
}

.nav-link.active {
    background-color: var(--color-canvas-subtle);
    border-left-color: var(--color-accent);
    color: var(--color-accent);
}

/* Main Content */
.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    display: flex;
    flex-direction: column;
}

.header {
    height: var(--header-height);
    background-color: var(--color-canvas);
    border-bottom: 1px solid var(--color-border);
    padding: 0 32px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 90;
}

.header-title {
    font-size: 24px;
    font-weight: 600;
}

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

.content {
    padding: 32px;
    max-width: 1400px;
    width: 100%;
}

/* Cards */
.card {
    background-color: var(--color-canvas);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

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

.card-title {
    font-size: 16px;
    font-weight: 600;
}

.card-body {
    padding: 20px;
}

/* Search */
.search-box {
    margin-bottom: 20px;
}

.search-input {
    width: 100%;
    max-width: 400px;
    padding: 8px 12px 8px 36px;
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    font-size: 14px;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='%23656d76'%3E%3Cpath d='M10.68 11.74a6 6 0 0 1-7.922-8.982 6 6 0 0 1 8.982 7.922l3.04 3.04a.749.749 0 0 1-.326 1.275.749.749 0 0 1-.734-.215ZM11.5 7a4.5 4.5 0 1 0-8.997.002A4.5 4.5 0 0 0 11.5 7Z'%3E%3C/path%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: 8px center;
}

.search-input:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(9, 105, 218, 0.1);
}

/* Table */
.table-wrapper {
    overflow-x: auto;
}

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

thead {
    background-color: var(--color-canvas-subtle);
}

th {
    padding: 12px 16px;
    text-align: left;
    font-weight: 600;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--color-fg-muted);
    border-bottom: 1px solid var(--color-border);
}

td {
    padding: 12px 16px;
    border-bottom: 1px solid var(--color-border-muted);
}

tbody tr {
    transition: background-color 0.15s;
}

tbody tr:hover {
    background-color: var(--color-canvas-subtle);
}

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

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

.user-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: linear-gradient(135deg, #0969da, #1a7f37);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 600;
    font-size: 12px;
}

.user-details {
    display: flex;
    flex-direction: column;
}

.user-name {
    font-weight: 600;
    color: var(--color-fg-default);
}

.user-phone {
    font-size: 12px;
    color: var(--color-fg-muted);
    font-family: 'SF Mono', monospace;
}

.badge {
    display: inline-block;
    padding: 2px 8px;
    font-size: 12px;
    font-weight: 500;
    border-radius: 12px;
}

.badge-success {
    background-color: #dafbe1;
    color: var(--color-success-emphasis);
}

.badge-danger {
    background-color: #ffebe9;
    color: var(--color-danger);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 16px;
    font-size: 14px;
    font-weight: 500;
    border-radius: var(--border-radius);
    border: 1px solid var(--color-border);
    background-color: var(--color-canvas);
    color: var(--color-fg-default);
    cursor: pointer;
    text-decoration: none;
    transition: all 0.15s;
    box-shadow: var(--shadow-sm);
}

.btn:hover {
    background-color: var(--color-canvas-subtle);
}

.btn-primary {
    background-color: var(--color-success);
    color: white;
    border-color: rgba(31, 35, 40, 0.15);
}

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

.btn-danger {
    background-color: var(--color-danger);
    color: white;
    border-color: rgba(31, 35, 40, 0.15);
}

.btn-sm {
    padding: 4px 12px;
    font-size: 12px;
}

/* Forms */
.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    margin-bottom: 6px;
    font-weight: 600;
    font-size: 14px;
}

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

.form-control:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(9, 105, 218, 0.1);
}

.form-row {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

.form-actions {
    display: flex;
    gap: 12px;
    padding-top: 20px;
    border-top: 1px solid var(--color-border);
    margin-top: 20px;
}

/* Logs */
.log-container {
    background-color: #0d1117;
    border-radius: var(--border-radius);
    padding: 16px;
    max-height: 600px;
    overflow-y: auto;
}

.log-line {
    font-family: 'SF Mono', 'Monaco', 'Consolas', monospace;
    font-size: 12px;
    padding: 4px 8px;
    color: #e6edf3;
    white-space: pre-wrap;
    border-left: 2px solid transparent;
}

.log-line:hover {
    background-color: rgba(110, 118, 129, 0.1);
}

.log-line.log-error {
    border-left-color: #f85149;
    background-color: rgba(248, 81, 73, 0.1);
}

.log-line.log-warning {
    border-left-color: #d29922;
    background-color: rgba(187, 128, 9, 0.1);
}

.log-line.log-info {
    border-left-color: #58a6ff;
}

/* Pagination */
.pagination {
    display: flex;
    gap: 8px;
    justify-content: center;
    margin-top: 24px;
    list-style: none;
}

.page-item {
    list-style: none;
}

.page-link {
    padding: 8px 12px;
    border: 1px solid var(--color-border);
    background-color: var(--color-canvas);
    color: var(--color-fg-default);
    border-radius: var(--border-radius);
    text-decoration: none;
    font-weight: 500;
}

.page-link:hover {
    background-color: var(--color-canvas-subtle);
}

.page-item.disabled .page-link {
    opacity: 0.5;
    pointer-events: none;
}

/* Alert */
.alert {
    padding: 12px 16px;
    border-radius: var(--border-radius);
    border: 1px solid;
    margin-bottom: 20px;
}

.alert-success {
    background-color: #dafbe1;
    border-color: var(--color-success);
    color: var(--color-success-emphasis);
}

.alert-danger {
    background-color: #ffebe9;
    border-color: var(--color-danger);
    color: var(--color-danger);
}

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

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

    .content {
        padding: 20px;
    }

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

.text-muted { color: var(--color-fg-muted); }
.mt-2 { margin-top: 16px; }
.mb-2 { margin-bottom: 16px; }

/* Toast Notifications */
.toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.toast {
    min-width: 300px;
    max-width: 400px;
    padding: 16px;
    background: var(--color-canvas);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    box-shadow: 0 8px 24px rgba(140, 149, 159, 0.2);
    display: flex;
    align-items: flex-start;
    gap: 12px;
    animation: slideIn 0.3s ease-out;
}

.toast.toast-success {
    border-left: 4px solid var(--color-success);
}

.toast.toast-danger {
    border-left: 4px solid var(--color-danger);
}

.toast.toast-info {
    border-left: 4px solid var(--color-accent);
}

.toast-icon {
    font-size: 20px;
    line-height: 1;
}

.toast-content {
    flex: 1;
}

.toast-title {
    font-weight: 600;
    margin-bottom: 4px;
}

.toast-message {
    font-size: 13px;
    color: var(--color-fg-muted);
}

.toast-close {
    background: none;
    border: none;
    color: var(--color-fg-muted);
    cursor: pointer;
    padding: 0;
    font-size: 18px;
    line-height: 1;
}

.toast-close:hover {
    color: var(--color-fg-default);
}

@keyframes slideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

@keyframes slideOut {
    from {
        transform: translateX(0);
        opacity: 1;
    }
    to {
        transform: translateX(100%);
        opacity: 0;
    }
}

.toast.hiding {
    animation: slideOut 0.3s ease-out forwards;
}