/* === Variables === */
:root {
    --bg-primary: #0d1117;
    --bg-secondary: #161b22;
    --bg-card: #1c2128;
    --bg-hover: #21262d;
    --border: #30363d;
    --text-primary: #e6edf3;
    --text-secondary: #8b949e;
    --text-muted: #484f58;
    --accent: #0099ff;
    --accent-hover: #1a8cd8;
    --accent-subtle: rgba(0, 153, 255, 0.15);
    --success: #3fb950;
    --success-subtle: rgba(63, 185, 80, 0.15);
    --warning: #d29922;
    --warning-subtle: rgba(210, 153, 34, 0.15);
    --danger: #f85149;
    --danger-subtle: rgba(248, 81, 73, 0.15);
    --sidebar-width: 260px;
    --radius: 8px;
    --radius-lg: 12px;
}

/* === Reset === */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { font-size: 14px; }
body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.5;
    min-height: 100vh;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

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

/* === Mobile Menu Toggle === */
.menu-toggle {
    display: none;
    position: fixed;
    top: 12px;
    left: 12px;
    z-index: 200;
    width: 40px;
    height: 40px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 8px;
    cursor: pointer;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 5px;
    padding: 0;
    -webkit-tap-highlight-color: transparent;
}
.menu-toggle span {
    display: block;
    width: 20px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: all 0.25s;
}
.menu-toggle.open span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}
.menu-toggle.open span:nth-child(2) {
    opacity: 0;
}
.menu-toggle.open span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* === Sidebar Overlay (mobile) === */
.sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 90;
    opacity: 0;
    transition: opacity 0.2s;
}
.sidebar-overlay.open {
    opacity: 1;
}

/* === Sidebar === */
.sidebar {
    width: var(--sidebar-width);
    background: var(--bg-secondary);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 100;
    overflow-y: auto;
}
.sidebar-brand {
    padding: 20px 20px 16px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    gap: 12px;
}
.sidebar-brand .logo {
    width: 36px;
    height: 36px;
    background: var(--accent);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.1rem;
    color: #fff;
    flex-shrink: 0;
}
.sidebar-brand .brand-text {
    font-weight: 600;
    font-size: 1.1rem;
    color: var(--text-primary);
}
.sidebar-brand .brand-sub {
    font-size: 0.78rem;
    color: var(--text-secondary);
}
.sidebar-nav {
    padding: 12px 10px;
    flex: 1;
}
.sidebar-nav a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 9px 14px;
    border-radius: 6px;
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.93rem;
    transition: all 0.15s;
    margin-bottom: 2px;
}
.sidebar-nav a:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
    text-decoration: none;
}
.sidebar-nav a.active {
    background: var(--accent-subtle);
    color: var(--accent);
}
.sidebar-nav .nav-icon {
    width: 20px;
    text-align: center;
    font-size: 1rem;
}
.sidebar-footer {
    padding: 16px 20px;
    border-top: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.sidebar-footer .user-info {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-secondary);
    font-size: 0.85rem;
}
.sidebar-footer .user-avatar {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--accent);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-weight: 600;
    font-size: 0.8rem;
}
.sidebar-footer a {
    color: var(--text-muted);
    font-size: 0.85rem;
}
.sidebar-footer a:hover { color: var(--danger); }

/* === Main Content === */
.main {
    margin-left: var(--sidebar-width);
    flex: 1;
    min-height: 100vh;
    min-width: 0;
}
.page-header {
    padding: 24px 32px 0;
}
.page-header h1 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 4px;
}
.page-header .subtitle {
    color: var(--text-secondary);
    font-size: 0.9rem;
}
.content {
    padding: 20px 32px 40px;
}

/* === Cards === */
.stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}
.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 20px;
}
.stat-card .stat-label {
    font-size: 0.82rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 6px;
}
.stat-card .stat-value {
    font-size: 1.8rem;
    font-weight: 700;
    line-height: 1.2;
}
.stat-card .stat-value.accent { color: var(--accent); }
.stat-card .stat-value.success { color: var(--success); }
.stat-card .stat-value.warning { color: var(--warning); }
.stat-card .stat-value.danger { color: var(--danger); }
.stat-card .stat-footer {
    margin-top: 8px;
    font-size: 0.8rem;
    color: var(--text-muted);
}

.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
}
.card-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border);
    font-weight: 600;
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    flex-wrap: wrap;
}
.card-body {
    padding: 20px;
}
.card-body.no-pad {
    padding: 0;
}

/* === Grid === */
.grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

/* === Tables === */
.table-wrap {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}
table {
    width: 100%;
    border-collapse: collapse;
}
th {
    text-align: left;
    padding: 10px 16px;
    font-weight: 600;
    font-size: 0.8rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 1px solid var(--border);
    white-space: nowrap;
}
td {
    padding: 10px 16px;
    border-bottom: 1px solid var(--border);
    font-size: 0.9rem;
    vertical-align: middle;
}
tr:hover td {
    background: var(--bg-hover);
}
tr:last-child td {
    border-bottom: none;
}

/* === Badges === */
.badge {
    display: inline-block;
    padding: 2px 10px;
    border-radius: 999px;
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.3px;
    white-space: nowrap;
}
.badge-open {
    background: var(--success-subtle);
    color: var(--success);
}
.badge-closed {
    background: var(--danger-subtle);
    color: var(--danger);
}
.badge-technical {
    background: var(--accent-subtle);
    color: var(--accent);
}
.badge-billing {
    background: var(--warning-subtle);
    color: var(--warning);
}
.badge-sales {
    background: rgba(163, 113, 247, 0.15);
    color: #a371f7;
}
.badge-general {
    background: rgba(139, 148, 158, 0.15);
    color: var(--text-secondary);
}

/* === Stars === */
.stars { color: #d29922; font-size: 0.95rem; letter-spacing: 1px; }
.stars-lg { font-size: 1.3rem; }

/* === Buttons === */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 7px 16px;
    border: 1px solid var(--border);
    border-radius: 6px;
    background: var(--bg-card);
    color: var(--text-primary);
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.15s;
    text-decoration: none;
    white-space: nowrap;
}
.btn:hover {
    background: var(--bg-hover);
    border-color: var(--text-muted);
    text-decoration: none;
}
.btn-primary {
    background: var(--accent);
    border-color: var(--accent);
    color: #fff;
}
.btn-primary:hover {
    background: var(--accent-hover);
    border-color: var(--accent-hover);
}
.btn-sm {
    padding: 4px 10px;
    font-size: 0.8rem;
}

/* === Forms / Filters === */
.filter-bar {
    display: flex;
    gap: 12px;
    align-items: center;
    margin-bottom: 20px;
    flex-wrap: wrap;
}
.filter-bar select,
.filter-bar input {
    padding: 7px 12px;
    border: 1px solid var(--border);
    border-radius: 6px;
    background: var(--bg-card);
    color: var(--text-primary);
    font-size: 0.85rem;
    outline: none;
}
.filter-bar select:focus,
.filter-bar input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-subtle);
}
.filter-bar input {
    min-width: 200px;
}

/* === Pagination === */
.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
    margin-top: 20px;
    flex-wrap: wrap;
}
.pagination a, .pagination span {
    padding: 6px 12px;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 0.85rem;
    color: var(--text-secondary);
}
.pagination a:hover {
    background: var(--bg-hover);
    text-decoration: none;
}
.pagination .active {
    background: var(--accent);
    border-color: var(--accent);
    color: #fff;
}

/* === Ticket Detail === */
.ticket-meta {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 16px;
}
.ticket-meta .meta-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
}
.ticket-meta .meta-label {
    font-size: 0.78rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.ticket-meta .meta-value {
    font-size: 0.95rem;
    font-weight: 500;
    word-break: break-word;
}

/* === Messages Timeline === */
.messages-list {
    display: flex;
    flex-direction: column;
    gap: 2px;
}
.msg {
    display: flex;
    gap: 12px;
    padding: 8px 16px;
    border-radius: 4px;
}
.msg:hover {
    background: var(--bg-hover);
}
.msg-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--bg-hover);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--accent);
    flex-shrink: 0;
}
.msg-avatar.bot {
    background: var(--accent-subtle);
}
.msg-avatar img {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    object-fit: cover;
}
.msg-content {
    flex: 1;
    min-width: 0;
}
.msg-header {
    display: flex;
    align-items: baseline;
    gap: 8px;
    margin-bottom: 2px;
    flex-wrap: wrap;
}
.msg-author {
    font-weight: 600;
    font-size: 0.9rem;
}
.msg-author.bot { color: var(--accent); }
.msg-time {
    font-size: 0.75rem;
    color: var(--text-muted);
}
.msg-text {
    font-size: 0.9rem;
    color: var(--text-secondary);
    word-wrap: break-word;
    overflow-wrap: break-word;
    line-height: 1.4;
}
.msg-embed {
    background: var(--bg-secondary);
    border-left: 3px solid var(--accent);
    border-radius: 4px;
    padding: 10px;
    margin-top: 6px;
    max-width: 500px;
}
.msg-embed-title {
    font-weight: 600;
    font-size: 0.88rem;
    margin-bottom: 4px;
}
.msg-embed-desc {
    font-size: 0.85rem;
    color: var(--text-secondary);
    word-wrap: break-word;
}
.msg-embed-field {
    margin-top: 6px;
}
.msg-embed-field-name {
    font-weight: 600;
    font-size: 0.82rem;
}
.msg-embed-field-value {
    font-size: 0.82rem;
    color: var(--text-secondary);
    word-wrap: break-word;
}

/* === Staff Card === */
.staff-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 16px;
}
.staff-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 20px;
}
.staff-card-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 14px;
}
.staff-card-avatar {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--accent-subtle);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent);
    font-weight: 700;
    font-size: 1.1rem;
    flex-shrink: 0;
}
.staff-card-avatar img {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    object-fit: cover;
}
.staff-card-name {
    font-weight: 600;
    font-size: 1rem;
}
.staff-card-sub {
    color: var(--text-secondary);
    font-size: 0.82rem;
}
.staff-card-stats {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 10px;
    margin-bottom: 14px;
}
.staff-stat {
    text-align: center;
}
.staff-stat-value {
    font-weight: 700;
    font-size: 1.2rem;
}
.staff-stat-label {
    font-size: 0.75rem;
    color: var(--text-secondary);
}
.staff-bar {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: 3px;
}
.staff-bar-track {
    flex: 1;
    height: 6px;
    background: var(--bg-hover);
    border-radius: 3px;
    overflow: hidden;
}
.staff-bar-fill {
    height: 100%;
    border-radius: 3px;
    background: var(--accent);
    transition: width 0.3s;
}
.staff-bar-fill.s5 { background: var(--success); }
.staff-bar-fill.s4 { background: #3fb950; }
.staff-bar-fill.s3 { background: var(--warning); }
.staff-bar-fill.s2 { background: #f0883e; }
.staff-bar-fill.s1 { background: var(--danger); }

/* === Settings === */
.settings-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 16px;
}
.setting-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 0;
    border-bottom: 1px solid var(--border);
    gap: 8px;
}
.setting-item:last-child { border-bottom: none; }
.setting-label {
    color: var(--text-secondary);
    font-size: 0.85rem;
    flex-shrink: 0;
}
.setting-value {
    font-weight: 500;
    font-size: 0.9rem;
    word-break: break-all;
    text-align: right;
}

/* === Chart Container === */
.chart-container {
    position: relative;
    height: 260px;
    width: 100%;
}

/* === Login Page === */
.login-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: var(--bg-primary);
    padding: 16px;
}
.login-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 40px;
    width: 100%;
    max-width: 380px;
}
.login-card h1 {
    text-align: center;
    font-size: 1.3rem;
    margin-bottom: 4px;
}
.login-card .login-sub {
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.85rem;
    margin-bottom: 28px;
}
.login-card .form-group {
    margin-bottom: 16px;
}
.login-card label {
    display: block;
    font-size: 0.82rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 6px;
}
.login-card input {
    width: 100%;
    padding: 9px 12px;
    border: 1px solid var(--border);
    border-radius: 6px;
    background: var(--bg-secondary);
    color: var(--text-primary);
    font-size: 0.9rem;
    outline: none;
}
.login-card input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-subtle);
}
.login-card .btn-login {
    width: 100%;
    padding: 10px;
    background: var(--accent);
    border: none;
    border-radius: 6px;
    color: #fff;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    margin-top: 8px;
}
.login-card .btn-login:hover { background: var(--accent-hover); }
.login-error {
    background: var(--danger-subtle);
    color: var(--danger);
    padding: 8px 12px;
    border-radius: 6px;
    font-size: 0.85rem;
    margin-bottom: 16px;
    text-align: center;
}

/* === Empty State === */
.empty {
    text-align: center;
    padding: 40px 20px;
    color: var(--text-muted);
}
.empty-icon { font-size: 2rem; margin-bottom: 10px; }

/* ======================================
   Responsive
   ====================================== */

/* Tablet */
@media (max-width: 1024px) {
    .grid-2 { grid-template-columns: 1fr; }
    .settings-grid { grid-template-columns: 1fr; }
}

/* Mobile */
@media (max-width: 768px) {
    /* Show hamburger */
    .menu-toggle {
        display: flex;
    }

    /* Show overlay when sidebar is open */
    .sidebar-overlay {
        display: block;
        pointer-events: none;
    }
    .sidebar-overlay.open {
        pointer-events: auto;
    }

    /* Sidebar off-screen by default */
    .sidebar {
        transform: translateX(-100%);
        transition: transform 0.25s ease;
    }
    .sidebar.open {
        transform: translateX(0);
    }

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

    /* Page header with room for hamburger */
    .page-header {
        padding: 16px 16px 0;
        padding-top: 60px;
    }
    .page-header h1 {
        font-size: 1.25rem;
    }

    .content {
        padding: 16px 16px 32px;
    }

    /* Stat cards: 2 columns */
    .stat-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
    }
    .stat-card {
        padding: 14px;
    }
    .stat-card .stat-value {
        font-size: 1.4rem;
    }

    /* Staff cards: single column */
    .staff-grid {
        grid-template-columns: 1fr;
    }

    /* Filter bar: stack */
    .filter-bar {
        gap: 8px;
    }
    .filter-bar select,
    .filter-bar input {
        width: 100%;
        min-width: 0;
    }

    /* Tables: smaller padding */
    th, td {
        padding: 8px 12px;
        font-size: 0.82rem;
    }

    /* Cards: reduce inner padding */
    .card-header {
        padding: 12px 16px;
        font-size: 0.9rem;
    }
    .card-body {
        padding: 16px;
    }

    /* Messages: tighter */
    .msg {
        padding: 8px 12px;
        gap: 10px;
    }
    .msg-avatar {
        width: 30px;
        height: 30px;
        font-size: 0.75rem;
    }
    .msg-avatar img {
        width: 30px;
        height: 30px;
    }

    /* Embeds: full width */
    .msg-embed {
        max-width: 100%;
    }

    /* Chart: shorter on mobile */
    .chart-container {
        height: 200px;
    }

    /* Pagination */
    .pagination {
        gap: 3px;
    }
    .pagination a, .pagination span {
        padding: 6px 10px;
        font-size: 0.8rem;
    }

    /* Ticket meta: 2 columns */
    .ticket-meta {
        grid-template-columns: 1fr 1fr;
        gap: 12px;
    }

    /* Login card smaller padding */
    .login-card {
        padding: 28px 24px;
    }

    /* Settings: value alignment */
    .setting-item {
        flex-wrap: wrap;
    }
    .setting-value {
        text-align: left;
    }
}

/* Small phone */
@media (max-width: 480px) {
    .stat-grid {
        grid-template-columns: 1fr 1fr;
        gap: 8px;
    }
    .stat-card {
        padding: 12px;
    }
    .stat-card .stat-label {
        font-size: 0.72rem;
    }
    .stat-card .stat-value {
        font-size: 1.2rem;
    }

    /* Ticket meta: single column on very small screens */
    .ticket-meta {
        grid-template-columns: 1fr;
    }

    /* Staff card: stats smaller */
    .staff-card {
        padding: 16px;
    }
    .staff-stat-value {
        font-size: 1rem;
    }

    .page-header h1 {
        font-size: 1.1rem;
    }
    .page-header .subtitle {
        font-size: 0.8rem;
    }

    /* Buttons: full width in filter */
    .filter-bar .btn {
        width: 100%;
        justify-content: center;
    }
}

/* === Utilities === */
.mt-16 { margin-top: 16px; }
.mt-20 { margin-top: 20px; }
.mb-20 { margin-bottom: 20px; }
.gap-16 { gap: 16px; }
.flex { display: flex; }
.flex-between { display: flex; justify-content: space-between; align-items: center; }
.text-muted { color: var(--text-secondary); }
.text-sm { font-size: 0.82rem; }
.mono { font-family: 'SF Mono', SFMono-Regular, Consolas, 'Liberation Mono', Menlo, monospace; }