/* Command Center Dark Theme */
:root {
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-card: #1e293b;
    --bg-hover: #334155;
    --bg-input: #0f172a;
    --border: #334155;
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --accent: #3b82f6;
    --accent-hover: #2563eb;
    --danger: #ef4444;
    --success: #10b981;
    --warning: #f59e0b;
    --high: #ef4444;
    --medium: #f59e0b;
    --low: #3b82f6;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
}

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

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

.sidebar {
    width: 240px;
    background: var(--bg-secondary);
    border-right: 1px solid var(--border);
    padding: 1.5rem 0;
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    overflow-y: auto;
    z-index: 50;
}

.sidebar-logo {
    padding: 0 1.5rem 1.5rem;
    border-bottom: 1px solid var(--border);
    margin-bottom: 1rem;
}

.sidebar-logo h1 {
    font-size: 1.1rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.sidebar-logo span {
    color: var(--accent);
}

.nav-section {
    padding: 0.5rem 0;
}

.nav-section-title {
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-muted);
    padding: 0.5rem 1.5rem;
    font-weight: 600;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.6rem 1.5rem;
    color: var(--text-secondary);
    font-size: 0.875rem;
    transition: all 0.15s;
}

.nav-link:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.nav-link.active {
    background: var(--bg-hover);
    color: var(--accent);
    border-right: 2px solid var(--accent);
}

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

.nav-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    flex-shrink: 0;
}

.main-content {
    flex: 1;
    margin-left: 240px;
    padding: 2rem;
    min-height: 100vh;
}

/* Page header */
.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.page-header h2 {
    font-size: 1.5rem;
    font-weight: 700;
}

/* Cards */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 0.75rem;
    padding: 1.5rem;
    transition: border-color 0.15s;
}

.card:hover {
    border-color: var(--text-muted);
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 1.25rem;
}

/* Stats row inside project card */
.stats-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.75rem;
    margin-top: 1rem;
}

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

.stat-value {
    font-size: 1.25rem;
    font-weight: 700;
}

.stat-label {
    font-size: 0.7rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Totals bar */
.totals-bar {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 1rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 0.75rem;
    padding: 1.25rem 1.5rem;
    margin-bottom: 2rem;
}

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

.total-value {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--accent);
}

.total-label {
    font-size: 0.7rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Project card header */
.project-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.5rem;
}

.project-color {
    width: 4px;
    height: 32px;
    border-radius: 2px;
}

.project-name {
    font-weight: 600;
    font-size: 1rem;
}

.project-url {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    border-radius: 0.5rem;
    font-size: 0.875rem;
    font-weight: 500;
    border: none;
    cursor: pointer;
    transition: all 0.15s;
}

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

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

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

.btn-ghost:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.btn-danger {
    background: var(--danger);
    color: white;
}

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

.btn-sm {
    padding: 0.35rem 0.75rem;
    font-size: 0.8rem;
}

/* Forms */
input, select, textarea {
    background: var(--bg-input);
    border: 1px solid var(--border);
    color: var(--text-primary);
    padding: 0.6rem 0.75rem;
    border-radius: 0.5rem;
    font-size: 0.875rem;
    width: 100%;
    outline: none;
    transition: border-color 0.15s;
}

input:focus, select:focus, textarea:focus {
    border-color: var(--accent);
}

select {
    cursor: pointer;
}

/* Tables */
.table-wrap {
    overflow-x: auto;
}

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

th {
    text-align: left;
    padding: 0.75rem 1rem;
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    border-bottom: 1px solid var(--border);
    font-weight: 600;
}

td {
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--border);
    font-size: 0.875rem;
}

tr:hover td {
    background: var(--bg-hover);
}

/* Badges */
.badge {
    display: inline-block;
    padding: 0.15rem 0.5rem;
    border-radius: 9999px;
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.badge-high { background: rgba(239,68,68,0.15); color: var(--high); }
.badge-medium { background: rgba(245,158,11,0.15); color: var(--medium); }
.badge-low { background: rgba(59,130,246,0.15); color: var(--low); }
.badge-backlog { background: rgba(148,163,184,0.15); color: var(--text-secondary); }
.badge-in_progress { background: rgba(59,130,246,0.15); color: var(--accent); }
.badge-done { background: rgba(16,185,129,0.15); color: var(--success); }

/* Kanban */
.kanban-board {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.25rem;
    min-height: 400px;
}

.kanban-column {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 0.75rem;
    padding: 1rem;
    min-height: 300px;
}

.kanban-column-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--border);
}

.kanban-column-title {
    font-weight: 600;
    font-size: 0.875rem;
}

.kanban-count {
    font-size: 0.75rem;
    color: var(--text-muted);
    background: var(--bg-primary);
    padding: 0.15rem 0.5rem;
    border-radius: 9999px;
}

.kanban-card {
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: 0.5rem;
    padding: 0.75rem;
    margin-bottom: 0.5rem;
    cursor: grab;
    transition: border-color 0.15s;
}

.kanban-card:hover {
    border-color: var(--text-muted);
}

.kanban-card.sortable-ghost {
    opacity: 0.4;
}

.kanban-card-title {
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.kanban-card-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* Priority sections */
.priority-section {
    margin-bottom: 2rem;
}

.priority-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    border-radius: 0.5rem;
    margin-bottom: 0.75rem;
    font-weight: 600;
    font-size: 0.875rem;
}

.priority-header.high { background: rgba(239,68,68,0.1); color: var(--high); border-left: 3px solid var(--high); }
.priority-header.medium { background: rgba(245,158,11,0.1); color: var(--medium); border-left: 3px solid var(--medium); }
.priority-header.low { background: rgba(59,130,246,0.1); color: var(--low); border-left: 3px solid var(--low); }

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

.login-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 1rem;
    padding: 2.5rem;
    width: 100%;
    max-width: 380px;
}

.login-card h1 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    text-align: center;
}

.login-card p {
    color: var(--text-muted);
    text-align: center;
    margin-bottom: 1.5rem;
    font-size: 0.875rem;
}

.login-card .error {
    background: rgba(239,68,68,0.1);
    color: var(--danger);
    padding: 0.75rem;
    border-radius: 0.5rem;
    font-size: 0.85rem;
    margin-bottom: 1rem;
    text-align: center;
}

.login-card input {
    margin-bottom: 1rem;
}

.login-card .btn {
    width: 100%;
    justify-content: center;
    padding: 0.75rem;
}

/* Filters bar */
.filters-bar {
    display: flex;
    gap: 0.75rem;
    align-items: center;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
}

.filters-bar select {
    width: auto;
    min-width: 160px;
}

/* Inline add form */
.inline-add {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.inline-add input {
    flex: 1;
}

/* Checkbox */
.task-checkbox {
    width: 18px;
    height: 18px;
    cursor: pointer;
    accent-color: var(--accent);
}

/* Toast notifications */
.toast-container {
    position: fixed;
    bottom: 1.5rem;
    right: 1.5rem;
    z-index: 1000;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.toast {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    color: var(--text-primary);
    padding: 0.75rem 1.25rem;
    border-radius: 0.5rem;
    font-size: 0.875rem;
    animation: slideIn 0.3s ease;
    box-shadow: 0 4px 12px rgba(0,0,0,0.3);
}

.toast.success { border-left: 3px solid var(--success); }
.toast.error { border-left: 3px solid var(--danger); }

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

/* Tabs */
.tabs {
    display: flex;
    gap: 0;
    border-bottom: 1px solid var(--border);
    margin-bottom: 1.5rem;
}

.tab {
    padding: 0.75rem 1.25rem;
    font-size: 0.875rem;
    color: var(--text-muted);
    cursor: pointer;
    border-bottom: 2px solid transparent;
    transition: all 0.15s;
}

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

.tab.active {
    color: var(--accent);
    border-bottom-color: var(--accent);
}

/* Uptime dots */
.uptime-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    flex-shrink: 0;
}

.uptime-dot.up {
    background: var(--success);
    box-shadow: 0 0 6px rgba(16,185,129,0.5);
}

.uptime-dot.down {
    background: var(--danger);
    box-shadow: 0 0 6px rgba(239,68,68,0.5);
    animation: pulse 1.5s infinite;
}

.uptime-dot.unknown {
    background: var(--text-muted);
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

/* Mobile hamburger menu */
.mobile-menu-btn {
    display: none;
    position: fixed;
    top: 0.75rem;
    left: 0.75rem;
    z-index: 100;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 0.5rem;
    padding: 0.5rem;
    color: var(--text-primary);
    cursor: pointer;
}

/* Responsive */
@media (max-width: 768px) {
    .mobile-menu-btn { display: block; }
    .sidebar {
        display: none;
        position: fixed;
        z-index: 90;
    }
    .sidebar.open { display: block; }
    .main-content { margin-left: 0; padding: 1rem; padding-top: 3.5rem; }
    .kanban-board { grid-template-columns: 1fr; }
    .card-grid { grid-template-columns: 1fr; }
    .inline-add { flex-wrap: wrap; }
    .page-header { flex-wrap: wrap; gap: 0.5rem; }
    .totals-bar { grid-template-columns: repeat(2, 1fr); }
    .filters-bar { flex-direction: column; align-items: stretch; }
    .filters-bar select { width: 100%; }
}