/**
 * Markov Models & HMM Visualizer Styles
 *
 * Visualization-specific styles only. Common styles are in visualizations.css.
 */

/* ============================================
   CSS Custom Properties
   ============================================ */
:root {
    /* State colors */
    --markov-state-0: #2196F3;
    --markov-state-1: #FF9800;
    --markov-state-2: #9C27B0;
    --markov-state-3: #4CAF50;

    /* Current / visited highlights */
    --markov-current-bg: #FFF9C4;
    --markov-current-border: #FBC02D;
    --markov-visited-bg: rgba(33, 150, 243, 0.15);

    /* Transition arrows */
    --markov-arrow-color: #607d8b;
    --markov-arrow-active: #FBC02D;
    --markov-prob-text: #333;

    /* Matrix */
    --markov-matrix-bg: #ffffff;
    --markov-matrix-header: #f5f5f5;
    --markov-matrix-border: #dee2e6;
    --markov-matrix-hover: #e3f2fd;
    --markov-matrix-input-bg: #ffffff;
    --markov-matrix-input-border: #ced4da;

    /* Sequence strip */
    --markov-seq-bg: #f8f9fa;
    --markov-seq-border: #dee2e6;

    /* Emission */
    --markov-emission-0: #26C6DA;
    --markov-emission-1: #EF5350;
    --markov-emission-2: #66BB6A;
    --markov-emission-3: #FFA726;
}

[data-theme="gruvbox-dark"] {
    --markov-state-0: #83a598;
    --markov-state-1: #fe8019;
    --markov-state-2: #d3869b;
    --markov-state-3: #b8bb26;

    --markov-current-bg: rgba(250, 189, 47, 0.25);
    --markov-current-border: var(--gruvbox-yellow);
    --markov-visited-bg: rgba(131, 165, 152, 0.15);

    --markov-arrow-color: #665c54;
    --markov-arrow-active: var(--gruvbox-yellow);
    --markov-prob-text: var(--gruvbox-fg);

    --markov-matrix-bg: var(--gruvbox-bg);
    --markov-matrix-header: var(--gruvbox-bg1);
    --markov-matrix-border: var(--gruvbox-bg2);
    --markov-matrix-hover: rgba(131, 165, 152, 0.15);
    --markov-matrix-input-bg: var(--gruvbox-bg-dim);
    --markov-matrix-input-border: var(--gruvbox-bg2);

    --markov-seq-bg: var(--gruvbox-bg1);
    --markov-seq-border: var(--gruvbox-bg2);

    --markov-emission-0: #8ec07c;
    --markov-emission-1: #fb4934;
    --markov-emission-2: #b8bb26;
    --markov-emission-3: #fabd2f;
}

/* ============================================
   Canvas
   ============================================ */
#markov-canvas {
    display: block;
    width: 100%;
    cursor: default;
    background: var(--viz-canvas-bg);
}

.markov-mode-badge {
    transition: all 0.3s ease;
}

/* ============================================
   Legend Colors
   ============================================ */
.legend-color.markov-state-default {
    background-color: var(--markov-state-0);
}

.legend-color.markov-state-current {
    background-color: var(--markov-current-border);
}

.legend-color.markov-state-visited {
    background-color: var(--markov-visited-bg);
    border: 1px solid var(--markov-state-0);
}

.legend-line.markov-transition {
    background-color: var(--markov-arrow-color);
}

/* ============================================
   Controls Panel
   ============================================ */
.markov-controls-panel {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

.markov-options-col {
    flex: 1;
    min-width: 200px;
}

.markov-playback-col {
    display: flex;
    flex-direction: column;
    gap: 10px;
    min-width: 180px;
}

.option-row {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 8px;
}

.option-row label {
    font-size: 12px;
    font-weight: 600;
    white-space: nowrap;
    min-width: 100px;
    margin-bottom: 0;
}

.option-row .form-control {
    flex: 1;
}

.stepper-control {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.stepper-control span {
    font-family: var(--viz-mono-font);
    font-size: 13px;
    font-weight: 600;
    min-width: 28px;
    text-align: center;
}

.speed-control {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 12px;
}

.speed-control input[type="range"] {
    flex: 1;
    min-width: 80px;
}

.btn-toolbar {
    display: flex;
    gap: 4px;
    flex-wrap: wrap;
}

/* ============================================
   Inline Probability Editor
   ============================================ */
.inline-editor {
    position: absolute;
    z-index: 10;
    transform: translate(-50%, -50%);
}

.inline-editor-input {
    width: 60px;
    text-align: center;
    padding: 3px 6px;
    font-size: 12px;
    font-family: var(--viz-mono-font);
    font-weight: bold;
    border: 2px solid var(--markov-state-0);
    border-radius: 4px;
    background: var(--markov-matrix-input-bg);
    color: var(--viz-text);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
    outline: none;
}

.inline-editor-input:focus {
    border-color: var(--markov-current-border);
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.3), 0 0 0 2px rgba(251, 192, 45, 0.3);
}

/* Legend hint */
.legend-hint {
    font-size: 0.8em;
    color: var(--viz-text-muted);
    font-style: italic;
    margin-left: 8px;
}

/* ============================================
   Emission Matrix
   ============================================ */
.emission-container {
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px solid var(--markov-matrix-border);
}

.emission-title {
    font-size: 0.9em;
    font-weight: 600;
    margin: 0 0 8px 0;
    color: var(--viz-text);
}

.emission-table {
    font-size: 0.85em;
    margin-bottom: 0;
    background-color: var(--markov-matrix-bg);
    width: 100%;
    border-collapse: collapse;
}

.emission-table th {
    background-color: var(--markov-matrix-header);
    font-weight: 600;
    text-align: center;
    padding: 6px 8px;
    color: var(--viz-text);
    border: 1px solid var(--markov-matrix-border);
    font-size: 0.9em;
}

.emission-table td {
    text-align: center;
    padding: 4px 6px;
    vertical-align: middle;
    color: var(--viz-text);
    border: 1px solid var(--markov-matrix-border);
}

.emission-table .row-header {
    font-weight: 600;
    background-color: var(--markov-matrix-header);
    text-align: left;
    padding-left: 10px;
}

/* ============================================
   Sequence Display
   ============================================ */
.sequence-display {
    min-height: 40px;
}

.sequence-strip {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    align-items: center;
}

.seq-token {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 3px 8px;
    border-radius: 4px;
    font-size: 0.8em;
    font-weight: 600;
    color: #fff;
    min-width: 28px;
    text-align: center;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.seq-token.active {
    transform: scale(1.15);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.seq-token.dimmed {
    opacity: 0.4;
}

.seq-token.state-0 { background-color: var(--markov-state-0); }
.seq-token.state-1 { background-color: var(--markov-state-1); }
.seq-token.state-2 { background-color: var(--markov-state-2); }
.seq-token.state-3 { background-color: var(--markov-state-3); }

.seq-token.emission-0 { background-color: var(--markov-emission-0); color: #333; }
.seq-token.emission-1 { background-color: var(--markov-emission-1); }
.seq-token.emission-2 { background-color: var(--markov-emission-2); color: #333; }
.seq-token.emission-3 { background-color: var(--markov-emission-3); color: #333; }

.seq-arrow {
    color: var(--viz-text-muted);
    font-size: 0.7em;
    padding: 0 1px;
}

/* ============================================
   HMM Display
   ============================================ */
.hmm-display {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

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

.hmm-label {
    font-size: 0.8em;
    font-weight: 600;
    min-width: 60px;
    color: var(--viz-text);
}

.hmm-connector {
    display: flex;
    justify-content: center;
    padding: 0 2px;
}

.hmm-connector-line {
    width: 1px;
    height: 12px;
    background-color: var(--viz-text-muted);
    opacity: 0.4;
}

/* Viterbi path highlight */
.seq-token.viterbi-match {
    box-shadow: 0 0 0 2px #4CAF50, 0 2px 4px rgba(76, 175, 80, 0.3);
}

.seq-token.viterbi-mismatch {
    box-shadow: 0 0 0 2px #F44336, 0 2px 4px rgba(244, 67, 54, 0.3);
}

/* ============================================
   Info Tab Overrides
   ============================================ */
.tab-content pre {
    font-size: 0.85em;
    background-color: var(--markov-matrix-header);
    border-color: var(--markov-matrix-border);
    color: var(--viz-text);
}

.tab-content code {
    background-color: var(--markov-matrix-header);
    color: var(--viz-text);
}

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 768px) {
    .markov-controls-panel {
        flex-direction: column;
    }

    .markov-options-col,
    .markov-playback-col {
        min-width: 100%;
    }
}