:root {
    --block-red: #B71234;
    --block-green: #009947;
    --block-blue: #0046AD;
    --block-yellow: #FFD500;
    --block-orange: #FF5900;
    --block-purple: #5F00FF;
    --block-none: #4D4D4D;

    --bg-primary: #1a1a2e;
    --bg-secondary: #16213e;
    --bg-card: #0f3460;
    --bg-input: #1a1a3e;
    --text-primary: #e0e0e0;
    --text-secondary: #a0a0b0;
    --text-muted: #707080;
    --accent: #e94560;
    --accent-hover: #ff6b81;
    --border: #2a2a4e;
    --success: #00c853;
    --warning: #ffd600;
    --danger: #ff1744;
    --sidebar-width: 240px;
    --header-height: 56px;
}

*, *::before, *::after {
    box-sizing: border-box;
}

html, body {
    margin: 0;
    padding: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    font-size: 14px;
    background: var(--bg-primary);
    color: var(--text-primary);
    height: 100%;
}

#app {
    height: 100%;
}

h1, h2, h3, h4, h5, h6 {
    margin-top: 0;
    color: var(--text-primary);
}

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

a:hover {
    color: var(--accent-hover);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    border: 1px solid var(--border);
    border-radius: 6px;
    background: var(--bg-card);
    color: var(--text-primary);
    cursor: pointer;
    font-size: 13px;
    transition: background 0.15s, border-color 0.15s;
}

.btn:hover {
    background: var(--bg-secondary);
    border-color: var(--accent);
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

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

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

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

.btn-danger:hover {
    background: #ff4569;
    border-color: #ff4569;
}

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

.btn-icon {
    padding: 6px;
    min-width: 32px;
    justify-content: center;
}

/* Cards */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 16px;
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
}

.card-title {
    font-size: 16px;
    font-weight: 600;
    margin: 0;
}

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

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

label {
    display: block;
    font-size: 12px;
    color: var(--text-secondary);
    margin-bottom: 4px;
    font-weight: 500;
}

.form-group {
    margin-bottom: 12px;
}

.form-row {
    display: flex;
    gap: 12px;
}

.form-row > * {
    flex: 1;
}

/* Checkbox */
.checkbox-label {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    font-size: 13px;
}

.checkbox-label input[type="checkbox"] {
    width: 16px;
    height: 16px;
    accent-color: var(--accent);
}

/* Tables */
table {
    width: 100%;
    border-collapse: collapse;
}

th {
    text-align: left;
    padding: 10px 12px;
    font-size: 12px;
    text-transform: uppercase;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border);
}

td {
    padding: 10px 12px;
    border-bottom: 1px solid var(--border);
}

tr:hover {
    background: rgba(255, 255, 255, 0.03);
}

/* Grid layout helpers */
.grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.grid-3 {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 16px;
}

/* Stat cards */
.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 20px;
    text-align: center;
}

.stat-value {
    font-size: 32px;
    font-weight: 700;
    color: var(--accent);
}

.stat-label {
    font-size: 12px;
    color: var(--text-secondary);
    text-transform: uppercase;
    margin-top: 4px;
}

/* Badge */
.badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 12px;
    font-size: 11px;
    font-weight: 600;
}

.badge-success {
    background: rgba(0, 200, 83, 0.2);
    color: var(--success);
}

.badge-warning {
    background: rgba(255, 214, 0, 0.2);
    color: var(--warning);
}

.badge-danger {
    background: rgba(255, 23, 68, 0.2);
    color: var(--danger);
}

/* Toolbar */
.toolbar {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 16px;
    flex-wrap: wrap;
}

.toolbar-separator {
    width: 1px;
    height: 24px;
    background: var(--border);
    margin: 0 4px;
}

/* Page header */
.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
}

.page-header h1 {
    font-size: 24px;
    margin: 0;
}

/* Color dot for stats */
.color-dot {
    display: inline-block;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    margin-right: 6px;
    vertical-align: middle;
}

/* Modal overlay */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.modal-content {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 24px;
    min-width: 400px;
    max-width: 600px;
    max-height: 80vh;
    overflow-y: auto;
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 8px;
    margin-top: 20px;
}

/* Calendar grid */
.calendar-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 4px;
}

.calendar-header-cell {
    text-align: center;
    font-size: 11px;
    font-weight: 600;
    color: var(--text-secondary);
    padding: 8px 4px;
}

.calendar-day {
    min-height: 100px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 6px;
}

.calendar-day.empty {
    background: transparent;
    border-color: transparent;
}

.calendar-day-number {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 4px;
}

/* Editor layout */
.editor-layout {
    display: grid;
    grid-template-columns: 240px 1fr 280px;
    gap: 16px;
    height: calc(100vh - var(--header-height) - 48px);
}

.editor-sidebar {
    overflow-y: auto;
}

.editor-main {
    display: flex;
    flex-direction: column;
    gap: 16px;
    overflow-y: auto;
    align-items: center;
    padding-top: 16px;
}

.editor-properties {
    overflow-y: auto;
}

/* Scrollbar styling */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

/* Cell colors for board grid */
.cell-red { background: var(--block-red); }
.cell-green { background: var(--block-green); }
.cell-blue { background: var(--block-blue); }
.cell-yellow { background: var(--block-yellow); color: #333; }
.cell-orange { background: var(--block-orange); }
.cell-purple { background: var(--block-purple); }
.cell-none { background: var(--block-none); }
.cell-empty { background: #222; border-style: dashed !important; }

/* Loading spinner */
.loading {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px;
    color: var(--text-secondary);
}

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