/* Dark theme CSS — matches GUI palette */
:root {
    --bg-primary: #1E1E1E;
    --bg-secondary: #252526;
    --bg-card: #2D2D2D;
    --bg-input: #3C3C3C;
    --border: #404040;
    --text-primary: #D4D4D4;
    --text-secondary: #808080;
    --accent: #4EC9B0;
    --accent-hover: #3DBEAA;
    --success: #4EC9B0;
    --warning: #D7BA7D;
    --error: #F44747;
    --info: #569CD6;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
}

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

.sidebar {
    width: 220px;
    background: var(--bg-secondary);
    border-right: 1px solid var(--border);
    padding: 20px 0;
    position: fixed;
    height: 100vh;
    overflow-y: auto;
}

.sidebar-brand {
    padding: 0 20px 20px;
    border-bottom: 1px solid var(--border);
    margin-bottom: 10px;
}

.sidebar-brand h2 {
    font-size: 18px;
    color: var(--accent);
    font-weight: 600;
}

.sidebar-brand small {
    color: var(--text-secondary);
    font-size: 12px;
}

.sidebar nav a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 20px;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
    transition: all 0.15s;
}

.sidebar nav a:hover,
.sidebar nav a.active {
    color: var(--text-primary);
    background: var(--bg-card);
}

.sidebar nav a.active {
    border-left: 3px solid var(--accent);
    padding-left: 17px;
}

.main-content {
    margin-left: 220px;
    flex: 1;
    padding: 30px;
    min-width: 0;
}

/* Page header */
.page-header {
    margin-bottom: 25px;
}

.page-header h1 {
    font-size: 24px;
    font-weight: 600;
}

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

/* Stat cards */
.stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 30px;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 20px;
}

.stat-card .label {
    color: var(--text-secondary);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.stat-card .value {
    font-size: 28px;
    font-weight: 700;
    margin-top: 4px;
    color: var(--accent);
}

/* Tables */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    overflow: hidden;
    margin-bottom: 20px;
}

.card-header {
    padding: 14px 20px;
    border-bottom: 1px solid var(--border);
    font-weight: 600;
    font-size: 14px;
}

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}

th {
    text-align: left;
    padding: 10px 16px;
    background: var(--bg-secondary);
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 1px solid var(--border);
}

td {
    padding: 10px 16px;
    border-bottom: 1px solid var(--border);
    white-space: nowrap;
}

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

tr:hover td {
    background: rgba(255, 255, 255, 0.02);
}

/* Status badges */
.badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.badge-success { background: rgba(78, 201, 176, 0.15); color: var(--success); }
.badge-warning { background: rgba(215, 186, 125, 0.15); color: var(--warning); }
.badge-error   { background: rgba(244, 71, 71, 0.15);  color: var(--error); }
.badge-info    { background: rgba(86, 156, 214, 0.15);  color: var(--info); }
.badge-pending { background: rgba(128, 128, 128, 0.15); color: var(--text-secondary); }

/* Forms */
.form-row {
    display: flex;
    gap: 12px;
    align-items: flex-end;
    margin-bottom: 16px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.form-group label {
    font-size: 12px;
    color: var(--text-secondary);
    font-weight: 500;
}

input[type="text"],
input[type="password"],
select {
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 8px 12px;
    color: var(--text-primary);
    font-size: 13px;
    outline: none;
    transition: border-color 0.15s;
    width: 100%;
}

input[type="text"]:focus,
input[type="password"]:focus,
select:focus {
    border-color: var(--accent);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    border: none;
    border-radius: 6px;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.15s;
    text-decoration: none;
}

.btn-primary {
    background: var(--accent);
    color: #1E1E1E;
}

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

.btn-danger {
    background: rgba(244, 71, 71, 0.15);
    color: var(--error);
}

.btn-danger:hover {
    background: rgba(244, 71, 71, 0.25);
}

.btn-sm {
    padding: 4px 10px;
    font-size: 12px;
}

.btn-ghost {
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border);
}

.btn-ghost:hover {
    color: var(--text-primary);
    border-color: var(--text-secondary);
}

/* Key display */
.key-cell {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.key-value {
    font-family: 'Consolas', 'Courier New', monospace;
    background: var(--bg-primary);
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 12px;
    white-space: nowrap;
}

.btn-copy {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: none;
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 4px;
    cursor: pointer;
    color: var(--text-secondary);
    transition: all 0.15s;
    flex-shrink: 0;
}

.btn-copy:hover {
    border-color: var(--accent);
    color: var(--accent);
}

/* Filters bar */
.filters {
    display: flex;
    gap: 12px;
    align-items: center;
    padding: 14px 20px;
    border-bottom: 1px solid var(--border);
    flex-wrap: wrap;
}

/* Pagination */
.pagination {
    display: flex;
    gap: 8px;
    align-items: center;
    justify-content: center;
    padding: 16px;
}

.pagination a {
    color: var(--text-secondary);
    text-decoration: none;
    padding: 4px 10px;
    border-radius: 4px;
    font-size: 13px;
}

.pagination a:hover {
    background: var(--bg-card);
    color: var(--text-primary);
}

.pagination .current {
    background: var(--accent);
    color: #1E1E1E;
    padding: 4px 10px;
    border-radius: 4px;
    font-size: 13px;
    font-weight: 600;
}

/* Empty state */
.empty-state {
    text-align: center;
    padding: 40px 20px;
    color: var(--text-secondary);
}

.empty-state p {
    font-size: 14px;
}

/* Sidebar footer (user + logout) */
.sidebar-footer {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 14px 20px;
    border-top: 1px solid var(--border);
    background: var(--bg-secondary);
}

.sidebar-user {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.sidebar-actions {
    display: flex;
    gap: 6px;
}

.sidebar-actions .btn {
    font-size: 11px;
    padding: 3px 8px;
}

/* Login page */
.login-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: var(--bg-primary);
}

.login-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 32px;
    width: 360px;
    max-width: 90vw;
}

.login-header {
    text-align: center;
    margin-bottom: 24px;
}

.login-header h2 {
    font-size: 20px;
    color: var(--accent);
    font-weight: 700;
}

.login-header small {
    color: var(--text-secondary);
    font-size: 12px;
}

/* Alerts */
.alert {
    padding: 10px 14px;
    border-radius: 6px;
    font-size: 13px;
    margin-bottom: 16px;
}

.alert-error {
    background: rgba(244, 71, 71, 0.12);
    color: var(--error);
    border: 1px solid rgba(244, 71, 71, 0.25);
}

.alert-success {
    background: rgba(78, 201, 176, 0.12);
    color: var(--success);
    border: 1px solid rgba(78, 201, 176, 0.25);
}

/* Table scroll wrapper — enables horizontal scroll on narrow screens */
.table-wrap {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

/* Hamburger button — hidden on desktop */
.hamburger {
    display: none;
    position: fixed;
    top: 12px;
    left: 12px;
    z-index: 1100;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 8px 9px;
    cursor: pointer;
    flex-direction: column;
    gap: 4px;
}

.hamburger span {
    display: block;
    width: 20px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 1px;
    transition: all 0.2s;
}

/* Overlay behind sidebar on mobile */
.sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 999;
}

/* Responsive */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }

    .sidebar {
        transform: translateX(-100%);
        transition: transform 0.25s ease;
        z-index: 1000;
    }

    .sidebar-open .sidebar {
        transform: translateX(0);
    }

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

    .sidebar-open .hamburger span:nth-child(1) {
        transform: rotate(45deg) translate(4px, 4px);
    }
    .sidebar-open .hamburger span:nth-child(2) {
        opacity: 0;
    }
    .sidebar-open .hamburger span:nth-child(3) {
        transform: rotate(-45deg) translate(4px, -4px);
    }

    .main-content {
        margin-left: 0;
        padding: 20px 14px;
        padding-top: 52px;
    }

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

    .page-header h1 {
        font-size: 20px;
    }

    .form-row {
        flex-direction: column;
        align-items: stretch;
    }

    .filters {
        flex-direction: column;
        align-items: stretch;
    }
}