/* Track-builder component styles.
   Global resets and :root vars are intentionally omitted here — they are
   defined in the host app's style.css when embedded, and in the standalone
   index.html <style> block when running via trunk serve in the submodule. */

:root {
    --bg:      #0a0a0f;
    --surface: #12121a;
    --bg2:     #1a1a24;
    --bg3:     #22222e;
    --border:  #2a2a3a;
    --accent:  #ffb700;
    --cyan:    #00e5ff;
    --success: #00ff88;
    --error:   #ff4466;
    --text:    #e8e8f0;
    --text1:   #a0a0c0;
    --muted:   #606080;
    --font-mono: 'DM Mono', monospace;
}

/* Standalone only — .app-root wraps header + tb-body when running as its own SPA */
.app-root {
    display: flex;
    flex-direction: column;
    height: 100vh;
    overflow: hidden;
    background: var(--bg);
    color: var(--text);
    font-family: var(--font-mono);
}

/* Embedded: .page-track fills remaining flex space between navbar padding and footer */
.page-track {
    display: flex;
    flex: 1;
    overflow: hidden;
    min-height: 0;
}

/* ── Header ─────────────────────────────────────────────────────────────────── */

.tb-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.65rem 1.25rem;
    background: rgba(10,10,15,0.9);
    border-bottom: 1px solid var(--border);
    flex-shrink: 0;
}

.tb-logo {
    font-weight: 700;
    font-size: 0.9rem;
    color: var(--accent);
}

.tb-title {
    font-size: 0.85rem;
    color: var(--text1);
}

/* ── Body ───────────────────────────────────────────────────────────────────── */

.tb-body {
    display: flex;
    flex: 1;
    overflow: hidden;
    gap: 0;
}

/* ── Canvas area ────────────────────────────────────────────────────────────── */

.track-canvas-wrap {
    flex: 1;
    position: relative;
    overflow: hidden;
    background: var(--bg);
    padding: 6px;
}

.track-canvas {
    width: 100%;
    height: 100%;
    display: block;
    cursor: crosshair;
}

.tb-canvas-hint {
    position: absolute;
    bottom: 0.6rem;
    left: 50%;
    transform: translateX(-50%);
    font-size: 0.65rem;
    color: var(--muted);
    background: rgba(10,10,15,0.7);
    padding: 0.2rem 0.6rem;
    border-radius: 3px;
    white-space: nowrap;
    pointer-events: none;
}

/* ── Side panel ─────────────────────────────────────────────────────────────── */

.track-panel {
    width: 260px;
    flex-shrink: 0;
    background: var(--surface);
    border-left: 1px solid var(--border);
    padding: 1.25rem;
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
    overflow-y: auto;
}

.track-panel-title {
    font-size: 0.65rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--muted);
    border-bottom: 1px solid var(--border);
    padding-bottom: 0.35rem;
}

.track-mode-btns {
    display: flex;
    gap: 0.4rem;
}

.track-mode-btn {
    flex: 1;
    padding: 0.4rem 0.3rem;
    font-size: 0.7rem;
    font-family: var(--font-mono);
    background: var(--bg2);
    border: 1px solid var(--border);
    border-radius: 4px;
    color: var(--text1);
    cursor: pointer;
    transition: border-color 0.15s, color 0.15s, background 0.15s;
}
.track-mode-btn:hover { border-color: var(--accent); color: var(--accent); }
.track-mode-btn--active {
    border-color: var(--accent);
    color: var(--accent);
    background: rgba(255,183,0,0.08);
}
.track-mode-btn--outer.track-mode-btn--active {
    border-color: var(--cyan);
    color: var(--cyan);
    background: rgba(0,229,255,0.08);
}

.track-undo-btn {
    width: 100%;
    padding: 0.35rem;
    font-size: 0.7rem;
    font-family: var(--font-mono);
    background: transparent;
    border: 1px solid var(--border);
    border-radius: 4px;
    color: var(--muted);
    cursor: pointer;
    transition: border-color 0.15s, color 0.15s;
}
.track-undo-btn:hover { border-color: var(--error); color: var(--error); }

.track-label {
    display: block;
    font-size: 0.68rem;
    color: var(--text1);
    margin-bottom: 0.2rem;
}

.track-input {
    width: 100%;
    background: var(--bg2);
    border: 1px solid var(--border);
    border-radius: 4px;
    color: var(--text);
    font-family: var(--font-mono);
    font-size: 0.75rem;
    padding: 0.35rem 0.55rem;
    outline: none;
    transition: border-color 0.15s;
}
.track-input:focus { border-color: var(--accent); }

.track-textarea {
    resize: vertical;
    min-height: 3.5rem;
    line-height: 1.4;
}

.track-save-btn {
    width: 100%;
    padding: 0.5rem;
    font-family: var(--font-mono);
    font-size: 0.78rem;
    background: transparent;
    border: 1px solid var(--accent);
    border-radius: 4px;
    color: var(--accent);
    cursor: pointer;
    transition: background 0.15s;
}
.track-save-btn:hover { background: rgba(255,183,0,0.1); }
.track-save-btn:disabled { opacity: 0.4; cursor: not-allowed; }

.track-status { font-size: 0.75rem; padding: 0.2rem 0; }
.track-status--ok    { color: var(--success); }
.track-status--error { color: var(--error); }
.track-status--saving { color: var(--cyan); }

/* ── Saved tracks list ───────────────────────────────────────────────────────── */

.track-list {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.track-list-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--bg2);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 0.4rem 0.55rem;
    cursor: pointer;
    transition: border-color 0.15s;
}
.track-list-row:hover { border-color: var(--accent); }

.track-list-name { font-size: 0.75rem; color: var(--text); }
.track-list-meta { font-size: 0.65rem; color: var(--muted); margin-top: 0.1rem; }

.lapsim-del-btn {
    background: none;
    border: none;
    color: var(--muted);
    font-size: 1rem;
    cursor: pointer;
    padding: 0;
    line-height: 1;
    flex-shrink: 0;
    transition: color 0.15s;
}
.lapsim-del-btn:hover { color: var(--error); }


/* ── Closed-spline toggle ────────────────────────────────────────────────────── */

.tb-closed-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
}

.tb-toggle {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    cursor: pointer;
    flex-shrink: 0;
}

.tb-toggle input[type="checkbox"] { display: none; }

.tb-toggle-slider {
    position: relative;
    display: inline-block;
    width: 2.2rem;
    height: 1.2rem;
    background: var(--bg3);
    border: 1px solid var(--border);
    border-radius: 1.3rem;
    cursor: pointer;
    transition: background 0.2s, border-color 0.2s;
    flex-shrink: 0;
}

.tb-toggle-slider::before {
    content: '';
    position: absolute;
    width: 0.9rem;
    height: 0.9rem;
    left: 0.13rem;
    top: 50%;
    transform: translateY(-50%);
    background: var(--muted);
    border-radius: 50%;
    transition: transform 0.2s, background 0.2s;
}

.tb-toggle input:checked + .tb-toggle-slider {
    background: rgba(255,183,0,0.15);
    border-color: var(--accent);
}
.tb-toggle input:checked + .tb-toggle-slider::before {
    transform: translateX(1.0rem) translateY(-50%);
    background: var(--accent);
}

.tb-toggle-val {
    font-family: var(--font-mono);
    font-size: 0.68rem;
    color: var(--muted);
    min-width: 1.6rem;
}
.tb-toggle input:checked ~ .tb-toggle-val { color: var(--accent); }

/* ── Scale bar ───────────────────────────────────────────────────────────────── */

.tb-scale-bar-wrap {
    position: absolute;
    bottom: 2rem;
    right: 1rem;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 3px;
    pointer-events: none;
}

.tb-scale-bar {
    height: 4px;
    background: rgba(255,255,255,0.7);
    border-radius: 2px;
    border-top: 1px solid rgba(0,0,0,0.3);
    border-bottom: 1px solid rgba(0,0,0,0.3);
    /* left/right end ticks */
    box-shadow: inset 1px 0 0 rgba(255,255,255,0.7), inset -1px 0 0 rgba(255,255,255,0.7);
    min-width: 40px;
    max-width: 300px;
}

.tb-scale-label {
    font-family: var(--font-mono);
    font-size: 0.62rem;
    color: rgba(255,255,255,0.75);
    text-shadow: 0 1px 3px #000;
}

/* ── Gates panel ─────────────────────────────────────────────────────────────── */

.tb-gates-info {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
}

.tb-gate-row {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.7rem;
    color: var(--muted);
    background: var(--bg2);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 0.3rem 0.5rem;
    transition: border-color 0.15s, color 0.15s;
}
.tb-gate-row--set { color: var(--text); border-color: transparent; }

.tb-gate-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    flex-shrink: 0;
}
.tb-gate-dot--start { background: #00ff88; }
.tb-gate-dot--end   { background: #ff4466; }

.tb-gate-clear {
    margin-left: auto;
    padding: 0 0.25rem;
    font-size: 0.8rem;
    line-height: 1;
    width: auto;
}