/**
 * Attention Mechanism Visualizer Styles
 * Visualization-specific styles only. Common styles are in visualizations.css.
 */

/* ============================================
   CSS Custom Properties
   ============================================ */
:root {
    /* Q/K/V projection colors */
    --attn-q-bg: rgba(21, 101, 192, 0.12);
    --attn-q-border: #1565c0;
    --attn-q-fill: #1565c0;
    --attn-q-text: #1565c0;
    --attn-k-bg: rgba(198, 40, 40, 0.10);
    --attn-k-border: #c62828;
    --attn-k-fill: #c62828;
    --attn-k-text: #c62828;
    --attn-v-bg: rgba(106, 27, 154, 0.10);
    --attn-v-border: #6a1b9a;
    --attn-v-fill: #6a1b9a;
    --attn-v-text: #6a1b9a;

    /* Token pills */
    --attn-token-bg: #e8f5e9;
    --attn-token-border: #43a047;
    --attn-token-text: #2e7d32;

    /* Embedding bars */
    --attn-embed-pos: #42a5f5;
    --attn-embed-neg: #ef5350;

    /* Score matrix */
    --attn-cell-bg: #f5f5f5;
    --attn-cell-border: #e0e0e0;
    --attn-cell-text: #333;
    --attn-active-glow: rgba(255, 152, 0, 0.5);
    --attn-active-border: #ff9800;

    /* Heatmap gradient (blue → green) */
    --attn-heat-cool: #e8f4f8;
    --attn-heat-mid: #4da8da;
    --attn-heat-warm: #10b981;

    /* Output vectors */
    --attn-output-fill: #66bb6a;
    --attn-output-border: #43a047;
    --attn-output-text: #2e7d32;

    /* General */
    --attn-section-title: #666;
    --attn-label-color: #555;
    --attn-canvas-text: #333;
    --attn-arrow-color: #ff9800;
    --attn-arrow-glow: rgba(255, 152, 0, 0.3);
    --attn-dashed-line: rgba(255, 152, 0, 0.4);
    --attn-divider: #e0e0e0;
    --attn-scale-label: #ff9800;

    /* Head colors (BertViz-style) */
    --attn-head-0: #1f77b4;
    --attn-head-1: #ff7f0e;
    --attn-head-2: #2ca02c;
    --attn-head-3: #d62728;
    --attn-head-4: #9467bd;
    --attn-head-5: #8c564b;
    --attn-head-6: #e377c2;
    --attn-head-7: #7f7f7f;
}

[data-theme="gruvbox-dark"] {
    /* Q/K/V projection colors */
    --attn-q-bg: rgba(131, 165, 152, 0.15);
    --attn-q-border: #83a598;
    --attn-q-fill: #83a598;
    --attn-q-text: #83a598;
    --attn-k-bg: rgba(251, 73, 52, 0.15);
    --attn-k-border: #fb4934;
    --attn-k-fill: #fb4934;
    --attn-k-text: #fb4934;
    --attn-v-bg: rgba(211, 134, 155, 0.15);
    --attn-v-border: #d3869b;
    --attn-v-fill: #d3869b;
    --attn-v-text: #d3869b;

    /* Token pills */
    --attn-token-bg: rgba(184, 187, 38, 0.15);
    --attn-token-border: #b8bb26;
    --attn-token-text: #b8bb26;

    /* Embedding bars */
    --attn-embed-pos: #83a598;
    --attn-embed-neg: #fb4934;

    /* Score matrix */
    --attn-cell-bg: rgba(168, 153, 132, 0.1);
    --attn-cell-border: rgba(168, 153, 132, 0.25);
    --attn-cell-text: #ebdbb2;
    --attn-active-glow: rgba(254, 128, 25, 0.5);
    --attn-active-border: #fe8019;

    /* Heatmap gradient (blue → green) */
    --attn-heat-cool: #3c3836;
    --attn-heat-mid: #458588;
    --attn-heat-warm: #50d67a;

    /* Output vectors */
    --attn-output-fill: #b8bb26;
    --attn-output-border: #98971a;
    --attn-output-text: #b8bb26;

    /* General */
    --attn-section-title: #a89984;
    --attn-label-color: #a89984;
    --attn-canvas-text: #ebdbb2;
    --attn-arrow-color: #fe8019;
    --attn-arrow-glow: rgba(254, 128, 25, 0.3);
    --attn-dashed-line: rgba(254, 128, 25, 0.4);
    --attn-divider: rgba(168, 153, 132, 0.3);
    --attn-scale-label: #fe8019;

    /* Head colors (BertViz-style) */
    --attn-head-0: #83a598;
    --attn-head-1: #fe8019;
    --attn-head-2: #b8bb26;
    --attn-head-3: #fb4934;
    --attn-head-4: #d3869b;
    --attn-head-5: #8ec07c;
    --attn-head-6: #fabd2f;
    --attn-head-7: #a89984;
}

/* ============================================
   SVG Container
   ============================================ */
.attn-svg-container {
    width: 100%;
    background: var(--viz-canvas-bg);
}

.attn-svg-container svg {
    display: block;
    width: 100%;
    height: auto;
}

/* ============================================
   Controls Panel
   ============================================ */
.attn-controls-panel {
    display: flex;
    gap: 20px;
}

.attn-options-col {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.attn-actions-col {
    width: 150px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    justify-content: center;
}

.attn-actions-col .btn-toolbar {
    display: flex;
    gap: 6px;
    flex-direction: column;
}

.attn-input-row {
    display: flex;
    align-items: center;
    gap: 8px;
}

.attn-input-row label {
    white-space: nowrap;
    margin: 0;
    font-weight: 600;
    font-size: 12px;
    min-width: 85px;
}

.attn-input-row .form-control {
    flex: 1;
}

.attn-stepper {
    display: flex;
    align-items: center;
    gap: 4px;
}

.attn-stepper .btn {
    padding: 2px 8px;
    font-size: 11px;
    line-height: 1.4;
}

.attn-stepper .stepper-value {
    min-width: 28px;
    text-align: center;
    font-weight: 600;
    font-size: 13px;
}

#custom-sentence-row {
    display: none;
}

#custom-sentence-row.visible {
    display: flex;
}

/* Custom sentence synthetic hint */
.attn-custom-hint {
    display: none;
    font-size: 10px;
    color: var(--attn-scale-label);
    padding: 4px 8px;
    background: rgba(255, 152, 0, 0.08);
    border-radius: 3px;
    margin-left: 90px;
}

.attn-custom-hint.visible {
    display: block;
}

.attn-custom-hint i {
    margin-right: 4px;
}

/* ============================================
   Speed Control
   ============================================ */
.speed-control {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 12px;
    color: var(--viz-text-muted);
}

/* ============================================
   Legend Overrides
   ============================================ */
.legend-color.attn-q-vec {
    background-color: var(--attn-q-bg);
    border: 2px solid var(--attn-q-border);
}

.legend-color.attn-k-vec {
    background-color: var(--attn-k-bg);
    border: 2px solid var(--attn-k-border);
}

.legend-color.attn-v-vec {
    background-color: var(--attn-v-bg);
    border: 2px solid var(--attn-v-border);
}

.legend-color.attn-token-pill {
    background-color: var(--attn-token-bg);
    border: 2px solid var(--attn-token-border);
}

.legend-dot.attn-heatmap-dot {
    background: linear-gradient(90deg, var(--attn-heat-cool), var(--attn-heat-mid), var(--attn-heat-warm));
}

.legend-color.attn-output-vec {
    background-color: rgba(102, 187, 106, 0.15);
    border: 2px solid var(--attn-output-border);
}

/* ============================================
   Head Color Bar (BertViz-style overlay control)
   ============================================ */
.attn-head-color-bar {
    display: none;
    flex-wrap: wrap;
    align-items: center;
    gap: 4px;
    padding: 6px 10px;
    border-bottom: 1px solid var(--attn-divider);
    background: var(--viz-canvas-bg);
}

.attn-head-color-bar.visible {
    display: flex;
}

.attn-head-color-bar-label {
    font-size: 11px;
    font-weight: 600;
    color: var(--viz-text-muted);
    margin-right: 4px;
}

.attn-head-btn {
    width: 24px;
    height: 24px;
    border: 2px solid transparent;
    border-radius: 4px;
    cursor: pointer;
    opacity: 0.35;
    transition: opacity 0.15s, border-color 0.15s;
    padding: 0;
}

.attn-head-btn.active {
    opacity: 1;
    border-color: var(--attn-cell-text);
}

.attn-head-btn:hover {
    opacity: 0.85;
}

/* Head button tooltip */
.attn-head-btn {
    position: relative;
}

.attn-head-tooltip {
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    background: var(--attn-cell-bg);
    border: 1px solid var(--attn-cell-border);
    border-radius: 4px;
    padding: 6px 10px;
    font-size: 10px;
    font-family: inherit;
    color: var(--attn-cell-text);
    white-space: nowrap;
    pointer-events: none;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.15s, visibility 0.15s;
    z-index: 100;
    box-shadow: 0 2px 8px rgba(0,0,0,0.15);
    margin-bottom: 6px;
    text-align: left;
    line-height: 1.4;
}

.attn-head-tooltip::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    border: 5px solid transparent;
    border-top-color: var(--attn-cell-border);
}

.attn-head-btn:hover .attn-head-tooltip {
    opacity: 1;
    visibility: visible;
}

.attn-head-tooltip .tooltip-stats {
    color: var(--viz-text-muted);
}

.attn-head-btn-all {
    width: auto;
    height: 24px;
    padding: 0 8px;
    border: 1px solid var(--attn-cell-border);
    border-radius: 4px;
    background: var(--attn-cell-bg);
    color: var(--attn-cell-text);
    font-size: 10px;
    font-weight: 600;
    cursor: pointer;
    margin-left: 4px;
}

.attn-head-btn-all:hover {
    border-color: var(--attn-active-border);
}

/* ============================================
   View Mode Bar (Lines / Heatmap toggle)
   ============================================ */
.attn-view-mode-bar {
    display: none;
    align-items: center;
    gap: 8px;
    padding: 4px 10px;
    border-bottom: 1px solid var(--attn-divider);
    background: var(--viz-canvas-bg);
}

.attn-view-mode-bar.visible {
    display: flex;
}

.attn-view-mode-label {
    font-size: 11px;
    font-weight: 600;
    color: var(--viz-text-muted);
}

.attn-layer-compare-btn {
    margin-left: 12px;
}

.attn-layer-compare-btn.active {
    background: var(--attn-active-border);
    border-color: var(--attn-active-border);
    color: #fff;
}

/* Layer comparison cell hover */
.layer-cell:hover rect:first-child {
    fill: var(--attn-active-border) !important;
    opacity: 0.1 !important;
}

/* ============================================
   View Toggle
   ============================================ */
.attn-view-toggle {
    display: flex;
    gap: 0;
}

.attn-view-toggle .btn {
    border-radius: 0;
    font-size: 11px;
    padding: 3px 10px;
}

.attn-view-toggle .btn:first-child {
    border-radius: 3px 0 0 3px;
}

.attn-view-toggle .btn:last-child {
    border-radius: 0 3px 3px 0;
}

.attn-view-toggle .btn.active {
    background: var(--attn-active-border);
    border-color: var(--attn-active-border);
    color: #fff;
}

/* ============================================
   Equation Bar Chips
   ============================================ */
.eq-chip { cursor: pointer; }
.eq-chip .eq-chip-border { opacity: 1; }
.eq-chip:hover .eq-chip-bg { opacity: 0.18; }
.eq-chip:hover .eq-chip-border { opacity: 1; }
.eq-chip.active .eq-chip-bg { opacity: 0.22; }
.eq-chip.active .eq-chip-border { opacity: 1; stroke-width: 2.5; }
.eq-chip.active .eq-chip-underline { opacity: 1; }
.eq-chip.locked { cursor: default; opacity: 0.3; }
.eq-chip.locked:hover .eq-chip-bg { opacity: 0; }
.eq-chip.locked:hover .eq-chip-border { opacity: 0.5; }

/* Toggle hint hover state */
.toggle-hint { cursor: pointer; }
.toggle-hint text { transition: opacity 0.15s, fill 0.15s; }
.toggle-hint:hover text { opacity: 1 !important; fill: var(--attn-active-border); }

/* ============================================
   Heading Controls (Dim / Heads / Layer)
   ============================================ */
.attn-heading-controls {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-left: auto;
}

.attn-heading-control {
    display: flex;
    align-items: center;
    gap: 4px;
}

.attn-heading-label {
    font-size: 11px;
    font-weight: 600;
    color: var(--viz-text-muted);
    white-space: nowrap;
}

.attn-heading-hint {
    font-size: 10px;
    color: var(--viz-text-muted);
}

/* ============================================
   BERT Mode
   ============================================ */
/* Disabled stepper styling for BERT mode */
.attn-stepper.disabled .btn {
    opacity: 0.4;
    pointer-events: none;
}
.attn-stepper.disabled .stepper-value {
    opacity: 0.6;
}

/* ============================================
   Run Button Pulse (IDLE state)
   ============================================ */
@keyframes pulse-ready {
    0%, 100% { box-shadow: 0 0 0 0 rgba(76, 175, 80, 0.5); }
    50% { box-shadow: 0 0 0 6px rgba(76, 175, 80, 0); }
}

.btn.pulse-ready {
    animation: pulse-ready 2s ease-in-out infinite;
}

[data-theme="gruvbox-dark"] .btn.pulse-ready {
    animation-name: pulse-ready-dark;
}

@keyframes pulse-ready-dark {
    0%, 100% { box-shadow: 0 0 0 0 rgba(184, 187, 38, 0.5); }
    50% { box-shadow: 0 0 0 6px rgba(184, 187, 38, 0); }
}

/* ============================================
   Layer Animation Play Button
   ============================================ */
.attn-layer-play-btn {
    margin-left: 6px;
    padding: 2px 6px;
}

.attn-layer-play-btn.active {
    background: var(--attn-active-border);
    border-color: var(--attn-active-border);
    color: #fff;
}

.attn-layer-anim-indicator {
    font-family: 'SF Mono','Menlo','Monaco','Consolas','Courier New',monospace;
    font-size: 10px;
    font-weight: 600;
    color: var(--attn-active-border);
    margin-left: 4px;
    min-width: 32px;
    display: inline-block;
}

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 992px) {
    .attn-controls-panel {
        flex-direction: column;
    }

    .attn-actions-col {
        width: 100%;
    }

    .attn-actions-col .btn-toolbar {
        flex-direction: row;
        justify-content: center;
    }

    .attn-head-color-bar {
        justify-content: center;
    }

    .attn-head-card {
        min-width: clamp(4rem, 18vw, 6rem);
    }

    .attn-mini-heatmap-cell {
        width: clamp(5px, 2vw, 8px);
        height: clamp(5px, 2vw, 8px);
    }
}