/* Interactive components: buttons, inputs, list items, modals.
   Styling aligned with the bcstiles.com design system — clean, softly shadowed, blue-accented. */

/* Mode selector buttons */
.mode-btn {
    flex: 1;
    padding: 10px 12px;
    border: 1px solid var(--border-input);
    background: var(--bg-panel);
    color: var(--text-secondary);
    border-radius: var(--radius-btn);
    cursor: pointer;
    font-weight: 600;
    font-size: 13px;
    font-family: inherit;
    transition: all 0.18s ease;
}

.mode-btn:hover {
    border-color: var(--brand-start);
    color: var(--brand-start);
    background: var(--brand-soft-bg);
}

.mode-btn.active {
    background: var(--brand-start);
    color: var(--text-on-brand);
    border-color: var(--brand-start);
    box-shadow: 0 2px 8px var(--brand-soft-shadow);
}

/* Form inputs */
.input-group {
    margin-bottom: 14px;
}

.input-group label {
    display: block;
    font-size: 12px;
    color: var(--text-secondary);
    margin-bottom: 6px;
    font-weight: 600;
}

.input-group input,
.input-group select {
    width: 100%;
    padding: 9px 12px;
    border: 1px solid var(--border-input);
    border-radius: var(--radius-btn);
    font-size: 14px;
    font-family: inherit;
    background: var(--bg-input);
    color: var(--text-primary);
    transition: border-color 0.18s ease, box-shadow 0.18s ease;
}

.input-group input:focus,
.input-group select:focus {
    outline: none;
    border-color: var(--brand-start);
    box-shadow: 0 0 0 3px var(--brand-soft-shadow);
}

.dimension-input {
    display: flex;
    gap: 8px;
}

.dimension-input input {
    width: calc(50% - 4px);
}

/* Primary / secondary buttons */
.btn {
    width: 100%;
    padding: 10px 16px;
    border: none;
    border-radius: var(--radius-btn);
    font-weight: 600;
    font-family: inherit;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.18s ease;
}

.btn-primary {
    background: var(--brand-start);
    color: var(--text-on-brand);
}

.btn-primary:hover {
    background: var(--brand-end);
    box-shadow: 0 4px 14px var(--brand-hover-shadow);
}

.btn-secondary {
    background: var(--bg-btn-secondary);
    color: var(--text-primary);
    margin-top: 8px;
}

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

/* Toolbar buttons (canvas header) */
.toolbar-btn {
    padding: 7px 14px;
    border: 1px solid var(--border-input);
    background: var(--bg-panel);
    color: var(--text-primary);
    border-radius: var(--radius-btn);
    cursor: pointer;
    font-size: 13px;
    font-weight: 500;
    font-family: inherit;
    transition: all 0.15s ease;
}

.toolbar-btn:hover:not(:disabled) {
    border-color: var(--brand-start);
    color: var(--brand-start);
    background: var(--brand-soft-bg);
}

.toolbar-btn:disabled {
    opacity: 0.45;
    cursor: not-allowed;
}

.toolbar-btn.active {
    background: var(--brand-start);
    color: var(--text-on-brand);
    border-color: var(--brand-start);
}

/* Item list entries (walls, furniture, doors) */
.item-list {
    margin-top: 14px;
}

.item {
    background: var(--bg-section);
    padding: 10px 12px;
    border-radius: var(--radius-btn);
    margin-bottom: 8px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border: 1px solid transparent;
    transition: all 0.18s ease;
}

.item:hover {
    border-color: var(--brand-start);
    background: var(--bg-section-hover);
}

.item.selected {
    border-color: var(--brand-start);
    background: var(--bg-section-selected);
    box-shadow: 0 1px 4px var(--brand-soft-shadow);
}

.item-info {
    flex: 1;
    min-width: 0;
}

.item-name {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 14px;
}

.item-dimensions {
    font-size: 12px;
    color: var(--text-secondary);
    margin-top: 2px;
}

.item-actions {
    display: flex;
    gap: 6px;
    align-items: center;
}

.icon-btn {
    width: 30px;
    height: 30px;
    border: none;
    border-radius: var(--radius-sm);
    background: var(--bg-panel);
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.15s ease;
    font-size: 15px;
    border: 1px solid var(--border-soft);
}

.icon-btn:hover {
    background: var(--brand-start);
    color: var(--text-on-brand);
    border-color: var(--brand-start);
}

.icon-btn.delete:hover {
    background: var(--accent-danger);
    border-color: var(--accent-danger);
}

/* Zoom controls */
.zoom-btn {
    width: 38px;
    height: 38px;
    border: 1px solid var(--border-input);
    background: var(--bg-panel);
    color: var(--brand-start);
    border-radius: var(--radius-btn);
    cursor: pointer;
    font-size: 17px;
    font-weight: 600;
    box-shadow: var(--shadow-overlay);
    transition: all 0.15s ease;
}

.zoom-btn:hover {
    background: var(--brand-start);
    color: var(--text-on-brand);
    border-color: var(--brand-start);
}

/* Misc */
.empty-state {
    text-align: center;
    padding: 22px 16px;
    color: var(--text-muted);
    font-size: 13px;
    background: var(--bg-section);
    border-radius: var(--radius-btn);
    border: 1px dashed var(--border-input);
}

.help-text {
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 8px;
    line-height: 1.55;
}

/* Keyboard focus outline (accessibility) */
button:focus-visible,
input:focus-visible,
select:focus-visible,
a:focus-visible {
    outline: 3px solid var(--brand-soft-shadow);
    outline-offset: 2px;
}

/* Modal surface */
.modal-scrim {
    position: fixed;
    inset: 0;
    background: var(--bg-modal-scrim);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 100;
    backdrop-filter: blur(2px);
}

.modal-scrim[hidden] {
    display: none;
}

.modal {
    background: var(--bg-panel);
    color: var(--text-primary);
    border-radius: var(--radius-card);
    padding: 26px 28px;
    max-width: 460px;
    width: calc(100% - 40px);
    box-shadow: 0 20px 60px rgba(20, 30, 50, 0.28);
    border: 1px solid var(--border-soft);
}

.modal h2 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 14px;
    letter-spacing: -0.01em;
}

.modal-close {
    float: right;
    background: transparent;
    border: none;
    font-size: 22px;
    cursor: pointer;
    color: var(--text-muted);
    line-height: 1;
    padding: 2px 6px;
    border-radius: var(--radius-sm);
    transition: all 0.15s ease;
}

.modal-close:hover {
    color: var(--text-primary);
    background: var(--bg-section);
}

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

.shortcut-table td {
    padding: 8px 6px;
    border-bottom: 1px solid var(--border-soft);
    vertical-align: top;
}

.shortcut-table td:first-child {
    white-space: nowrap;
    color: var(--text-secondary);
    width: 45%;
}

kbd {
    display: inline-block;
    padding: 2px 8px;
    background: var(--bg-section);
    border: 1px solid var(--border-input);
    border-radius: var(--radius-sm);
    font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
    font-size: 12px;
    color: var(--text-primary);
    min-width: 20px;
    text-align: center;
    box-shadow: 0 1px 0 var(--border-panel);
}

/* Autosave indicator in toolbar */
.autosave-indicator {
    font-size: 12px;
    color: var(--text-muted);
    padding: 0 4px;
    align-self: center;
    white-space: nowrap;
}

/* Dropdown menu trigger wrapper */
.menu-wrapper {
    position: relative;
}

.menu-btn {
    white-space: nowrap;
}

.menu-dropdown {
    position: absolute;
    top: calc(100% + 6px);
    left: 0;
    background: var(--bg-panel);
    border: 1px solid var(--border-panel);
    border-radius: var(--radius-btn);
    box-shadow: 0 10px 28px rgba(20, 30, 50, 0.14);
    min-width: 200px;
    z-index: 200;
    padding: 6px 0;
}

.menu-dropdown[hidden] {
    display: none;
}

.menu-item {
    display: flex;
    align-items: center;
    width: 100%;
    padding: 9px 16px 9px 12px;
    background: transparent;
    border: none;
    text-align: left;
    font-size: 13px;
    font-family: inherit;
    color: var(--text-primary);
    cursor: pointer;
    gap: 6px;
    transition: background 0.12s ease;
    white-space: nowrap;
}

.menu-item::before {
    content: '';
    display: inline-block;
    width: 14px;
    flex-shrink: 0;
    color: var(--brand-start);
    font-weight: 700;
}

.menu-item[data-checked="true"]::before {
    content: '✓';
}

.menu-item:hover {
    background: var(--brand-soft-bg);
    color: var(--brand-end);
}

.menu-item.menu-danger {
    color: var(--accent-danger);
}

.menu-item.menu-danger:hover {
    background: rgba(239, 68, 68, 0.10);
    color: var(--accent-danger-hover);
}

.menu-divider {
    height: 1px;
    background: var(--border-soft);
    margin: 5px 0;
}

/* Projects modal */
.modal-wide {
    max-width: 640px;
}

.projects-toolbar {
    margin: 10px 0 14px;
}

.projects-list {
    max-height: 460px;
    overflow-y: auto;
    border-top: 1px solid var(--border-soft);
    padding-top: 10px;
}

.project-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 12px 14px;
    border-radius: var(--radius-btn);
    border: 1px solid var(--border-soft);
    background: var(--bg-section);
    margin-bottom: 8px;
    transition: all 0.18s ease;
}

.project-item:hover {
    border-color: var(--brand-start);
    background: var(--bg-section-hover);
}

.project-item.current {
    border-color: var(--brand-start);
    background: var(--bg-section-selected);
}

.project-info {
    flex: 1;
    min-width: 0;
}

.project-name {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 14px;
    overflow: hidden;
    text-overflow: ellipsis;
}

.project-badge {
    display: inline-block;
    margin-left: 6px;
    padding: 2px 9px;
    border-radius: var(--radius-pill);
    background: var(--brand-soft-bg);
    color: var(--brand-end);
    font-size: 11px;
    font-weight: 600;
    vertical-align: middle;
    letter-spacing: 0.02em;
}

.project-meta {
    font-size: 12px;
    color: var(--text-secondary);
    margin-top: 3px;
}

.project-actions {
    display: flex;
    gap: 6px;
    flex-shrink: 0;
}

/* Measurement result panel */
.measure-result {
    background: var(--brand-soft-bg);
    border: 1px solid rgba(33, 150, 243, 0.2);
    border-radius: var(--radius-card);
    padding: 14px 12px 12px;
    margin: 14px 0 10px;
    text-align: center;
}

.measure-label {
    font-size: 10px;
    color: var(--brand-end);
    text-transform: uppercase;
    letter-spacing: 0.14em;
    font-weight: 700;
    margin-bottom: 4px;
}

.measure-value {
    font-size: 28px;
    font-weight: 700;
    color: var(--brand-end);
    line-height: 1.1;
    letter-spacing: -0.015em;
}

/* Color picker swatch inside item action rows */
.item-color-picker {
    width: 28px;
    height: 28px;
    border: 1px solid var(--border-input);
    border-radius: var(--radius-sm);
    cursor: pointer;
    padding: 0;
    background: none;
    flex-shrink: 0;
    transition: border-color 0.15s ease, transform 0.15s ease;
}

.item-color-picker:hover {
    border-color: var(--brand-start);
    transform: scale(1.08);
}

.item-color-picker::-webkit-color-swatch-wrapper {
    padding: 2px;
}

.item-color-picker::-webkit-color-swatch {
    border: none;
    border-radius: 3px;
}

/* Export image modal */
.format-toggle {
    display: flex;
    gap: 8px;
    margin-top: 6px;
}

.format-btn {
    flex: 1;
    padding: 9px 16px;
    border: 1px solid var(--border-input);
    background: var(--bg-panel);
    color: var(--text-secondary);
    border-radius: var(--radius-btn);
    cursor: pointer;
    font-weight: 600;
    font-size: 13px;
    font-family: inherit;
    transition: all 0.15s ease;
}

.format-btn.active {
    background: var(--brand-start);
    color: var(--text-on-brand);
    border-color: var(--brand-start);
}

.export-section {
    margin-bottom: 16px;
}

.export-label {
    display: block;
    font-size: 11px;
    font-weight: 700;
    color: var(--brand-start);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 8px;
}

.export-select {
    width: 100%;
    padding: 9px 12px;
    border: 1px solid var(--border-input);
    border-radius: var(--radius-btn);
    font-size: 14px;
    font-family: inherit;
    background: var(--bg-input);
    color: var(--text-primary);
    cursor: pointer;
    transition: border-color 0.18s ease;
}

.export-select:focus {
    outline: none;
    border-color: var(--brand-start);
    box-shadow: 0 0 0 3px var(--brand-soft-shadow);
}

.radio-group {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 4px;
}

.radio-pill {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    border: 1px solid var(--border-input);
    border-radius: var(--radius-pill);
    cursor: pointer;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
    transition: all 0.15s ease;
    user-select: none;
}

.radio-pill:has(input:checked) {
    border-color: var(--brand-start);
    background: var(--brand-soft-bg);
    color: var(--brand-end);
}

.radio-pill input[type="radio"] {
    display: none;
}

.export-checkbox-row {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--text-primary);
    cursor: pointer;
    margin-bottom: 8px;
    user-select: none;
}

.export-checkbox-row input[type="checkbox"] {
    width: 15px;
    height: 15px;
    accent-color: var(--brand-start);
    cursor: pointer;
}

.export-actions {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    margin-top: 20px;
    padding-top: 16px;
    border-top: 1px solid var(--border-soft);
}

.export-opts {
    /* Container for format-specific option panels */
}

/* Template selection grid */
.template-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 12px;
    margin-top: 16px;
    max-height: 460px;
    overflow-y: auto;
}

.template-card {
    border: 1px solid var(--border-panel);
    border-radius: var(--radius-card);
    padding: 14px 10px 12px;
    cursor: pointer;
    transition: all 0.2s ease;
    background: var(--bg-panel);
    box-shadow: var(--shadow-card);
    text-align: center;
    user-select: none;
}

.template-card:hover,
.template-card:focus-visible {
    border-color: var(--brand-start);
    transform: translateY(-3px);
    box-shadow: var(--shadow-card-hover);
    outline: none;
}

.template-card-preview {
    color: var(--brand-start);
    margin-bottom: 10px;
    display: flex;
    justify-content: center;
    padding: 6px;
    background: var(--brand-soft-bg);
    border-radius: var(--radius-btn);
}

.template-card-name {
    font-weight: 600;
    font-size: 13px;
    color: var(--text-primary);
}

.template-card-desc {
    font-size: 11px;
    color: var(--text-secondary);
    margin-top: 3px;
}

/* ── Floating context menu (long-press / right-click) ─────────────────────── */
.context-menu {
    position: fixed;
    z-index: 200;
    min-width: 180px;
    padding: 6px;
    background: var(--bg-panel);
    border: 1px solid var(--border-panel);
    border-radius: var(--radius-btn);
    box-shadow: 0 12px 32px rgba(20, 30, 50, 0.18);
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.context-menu[hidden] { display: none; }

.context-menu-item {
    padding: 10px 14px;
    border: none;
    background: transparent;
    color: var(--text-primary);
    text-align: left;
    font-size: 14px;
    font-family: inherit;
    border-radius: 6px;
    cursor: pointer;
    transition: background 0.12s ease, color 0.12s ease;
    /* Larger tap target on touch */
    min-height: 40px;
}

.context-menu-item:hover,
.context-menu-item:focus-visible {
    background: var(--brand-soft-bg);
    color: var(--brand-start);
    outline: none;
}

.context-menu-danger { color: #ef4444; }
.context-menu-danger:hover,
.context-menu-danger:focus-visible {
    background: rgba(239, 68, 68, 0.1);
    color: #dc2626;
}