/* =========================================================
   COMPONENTS — Controls, cards, buttons, tooltips, preview
   ========================================================= */

/* === Controls Panel === */
.controls-panel {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 1.5rem;
    height: fit-content;
    position: sticky;
    top: 1rem;
}

.controls-panel h2 {
    font-size: 1.1rem;
    margin-bottom: 1rem;
    color: var(--accent);
    border-bottom: 1px solid var(--border);
    padding-bottom: 0.5rem;
}

/* --- Control groups --- */
.control-group {
    margin-bottom: 0.85rem;
}

.control-group.half {
    margin-bottom: 0;
}

.control-group label {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-bottom: 0.25rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.control-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
    margin-bottom: 0.6rem;
}

.sensor-details {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 0.75rem;
    margin-bottom: 0.85rem;
}

/* --- Inputs & selects --- */
.control-group select,
.control-group input[type="number"],
.control-group input[type="text"] {
    width: 100%;
    padding: 0.45rem 0.6rem;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text-primary);
    font-size: 0.85rem;
    outline: none;
    transition: border-color 0.2s;
}

.control-group select:focus,
.control-group input[type="number"]:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 2px var(--accent-glow);
}

/* --- Range sliders --- */
.control-group input[type="range"] {
    width: 100%;
    accent-color: var(--accent);
    margin-top: 0.25rem;
}

/* --- Editable number input alongside sliders --- */
.range-value-edit {
    display: flex;
    align-items: center;
    gap: 0.35rem;
}

.range-num-input {
    width: 72px;
    padding: 0.2rem 0.4rem;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text-primary);
    font-size: 0.9rem;
    font-weight: 600;
    font-family: inherit;
    text-align: center;
    -moz-appearance: textfield; /* hide Firefox spinner */
}

.range-num-input:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 2px var(--accent-glow);
}

/* Keep spin buttons visible — they're useful for stepping */
.range-num-input::-webkit-inner-spin-button,
.range-num-input::-webkit-outer-spin-button {
    opacity: 1;
}

.range-unit {
    font-size: 0.8rem;
    color: var(--text-secondary);
    flex-shrink: 0;
}

.range-desc {
    font-size: 0.75rem;
    color: var(--text-secondary);
    flex-shrink: 0;
}

.range-value {
    display: inline-block;
    font-size: 0.85rem;
    color: var(--accent);
    font-weight: 600;
    margin-top: 0.15rem;
}

.range-labels {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.range-equiv {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

/* --- Checkbox --- */
.checkbox-label {
    display: flex !important;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    text-transform: none !important;
    font-size: 0.85rem !important;
    color: var(--text-primary) !important;
}

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

.section-subtitle {
    font-size: 0.8rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    margin-bottom: 0.6rem;
}

/* === Collapsible sections (hidden on desktop, visible on mobile) === */
.collapsible-header {
    display: none;
}

/* === Tooltip === */
.tooltip {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--border);
    color: var(--text-secondary);
    font-size: 0.6rem;
    font-weight: 700;
    cursor: help;
    position: relative;
    flex-shrink: 0;
}

.tooltip:hover::after,
.tooltip.active::after {
    content: attr(data-tip);
    position: absolute;
    bottom: 130%;
    left: 50%;
    transform: translateX(-50%);
    background: var(--bg-card);
    border: 1px solid var(--border);
    color: var(--text-primary);
    padding: 0.5rem 0.75rem;
    border-radius: 6px;
    font-size: 0.72rem;
    font-weight: 400;
    text-transform: none;
    letter-spacing: normal;
    line-height: 1.4;
    white-space: normal;
    width: 220px;
    z-index: 100;
    box-shadow: 0 4px 12px rgba(0,0,0,0.4);
    pointer-events: none;
}

/* === Results Panel === */
.results-panel {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.rule-results, .exposure-info, .info-section {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 1.5rem;
}

.disclaimer {
    font-size: 0.8rem;
    color: var(--text-secondary);
    opacity: 0.7;
    font-style: italic;
    margin-bottom: 1rem;
}

.rule-results h2, .exposure-info h2, .info-section h2 {
    font-size: 1.1rem;
    margin-bottom: 1rem;
    color: var(--accent);
}

/* === Rule Cards === */
.rule-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 1rem;
}

.rule-hint {
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
    text-align: center;
}

.rule-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 1rem;
    text-align: center;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.rule-card.clickable {
    cursor: pointer;
}

.rule-card.clickable:hover {
    border-color: rgba(99, 102, 241, 0.5);
    background: rgba(26, 34, 52, 0.8);
}

.rule-card.active {
    border-color: var(--accent);
    box-shadow: 0 0 12px var(--accent-glow);
}

.rule-card h3 {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.rule-value {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--text-primary);
    font-variant-numeric: tabular-nums;
}

.rule-desc {
    font-size: 0.7rem;
    color: var(--text-secondary);
    margin-top: 0.4rem;
}

.active-shutter {
    margin-top: 1rem;
    padding: 0.75rem 1rem;
    background: var(--bg-card);
    border: 1px solid var(--accent);
    border-radius: 8px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.95rem;
}

.active-shutter strong {
    color: var(--accent);
    font-size: 1.2rem;
}

/* === Exposure Cards === */
.exposure-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 1rem;
}

.exposure-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 1rem;
    text-align: center;
}

.exposure-label {
    display: block;
    font-size: 0.75rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    margin-bottom: 0.4rem;
}

.exposure-value {
    font-size: 1.3rem;
    font-weight: 700;
    font-variant-numeric: tabular-nums;
}

/* Sharpness colors (editable: change these for different severity indicators) */
.sharpness-pinpoint { color: var(--success); }
.sharpness-slight { color: var(--warning); }
.sharpness-trails { color: var(--danger); }

/* === Camera Readout — "what to dial in" summary above the preview === */
.camera-readout {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 0.6rem 0.75rem;
    margin-bottom: 0.75rem;
}

.readout-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    flex: 1;
    min-width: 60px;
}

.readout-label {
    font-size: 0.6rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.07em;
    margin-bottom: 0.1rem;
}

.readout-value {
    font-size: 1rem;
    font-weight: 700;
    color: var(--accent);
    white-space: nowrap;
}

/* === Sky Preview === */
.preview-container {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 1.5rem;
}

.preview-container h2 {
    font-size: 1.1rem;
    margin-bottom: 1rem;
    color: var(--accent);
}

.preview-wrapper {
    position: relative;
    border-radius: 8px;
    overflow: hidden;
    background: #000;
    aspect-ratio: 16/10;
}

#sky-preview {
    width: 100%;
    height: 100%;
    display: block;
}

.preview-overlay {
    position: absolute;
    inset: 0;
    pointer-events: none;
    transition: background-color 0.3s;
}

/* === Noise Canvas === */
#noise-canvas,
.noise-canvas-small {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    mix-blend-mode: screen;
    opacity: 0;
    transition: opacity 0.3s;
}

#noise-canvas.visible,
.noise-canvas-small.visible {
    opacity: 1;
}

/* === Comparison Grid === */
.comparison-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
}

.comparison-cell h3 {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    text-align: center;
}

.comparison-cell h3 span {
    color: var(--accent);
    font-weight: 700;
}

.preview-small {
    aspect-ratio: 16/10;
}

.preview-small svg {
    width: 100%;
    height: 100%;
    display: block;
}

/* === Info Section === */
.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
}

.info-block {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 1rem;
}

.info-block h3 {
    font-size: 0.9rem;
    color: var(--accent);
    margin-bottom: 0.5rem;
}

.info-block .formula {
    font-family: 'Consolas', 'Courier New', monospace;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 0.4rem 0.6rem;
    font-size: 0.8rem;
    color: var(--warning);
    margin-bottom: 0.5rem;
    display: block;
    overflow-x: auto;
}

.info-block p:last-child {
    font-size: 0.78rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* === Action Buttons === */
.action-buttons {
    display: flex;
    gap: 0.5rem;
}

.btn {
    flex: 1;
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--border);
    border-radius: 6px;
    background: var(--bg-card);
    color: var(--text-primary);
    font-size: 0.8rem;
    cursor: pointer;
    transition: all 0.2s;
    font-weight: 500;
}

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

.btn:active {
    transform: scale(0.97);
}

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

.btn-primary:hover {
    background: #5558e6;
    border-color: #5558e6;
}

.btn.copied {
    border-color: var(--success);
    color: var(--success);
}