@font-face {
    font-family: 'PrintChar21';
    src: url('../../../fonts/pr/PrintChar21.ttf') format('truetype');
}

:root {
    --amber:        #ff8c00;
    --amber-bright: #ffaf4d;
    --amber-dim:    #8b4513;
    --bg:           #000000;
    --font:         'PrintChar21', 'Courier New', monospace;
    --fs:           13px;
    --lh:           1.4;
}

*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html, body {
    width: 100%;
    height: 100%;
    background: var(--bg);
    color: var(--amber);
    font-family: var(--font);
    font-size: var(--fs);
    line-height: var(--lh);
    overflow: hidden;
}

#terminal {
    display: flex;
    flex-direction: column;
    width: 100%;
    height: 100%;
    padding: 4px 8px;
}

#controls-bar {
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    gap: 2px;
    padding-bottom: 3px;
    margin-bottom: 3px;
    border-bottom: 1px solid var(--amber-dim);
    white-space: nowrap;
    font-family: var(--font);
    font-size: var(--fs);
    color: var(--amber);
}

.ctrl-row {
    display: flex;
    align-items: center;
    gap: 16px;
}

#controls-bar button {
    background: none;
    border: 1px solid var(--amber-dim);
    color: var(--amber);
    font-family: var(--font);
    font-size: var(--fs);
    padding: 0 4px;
    cursor: pointer;
}

#controls-bar button:hover {
    border-color: var(--amber);
    color: var(--amber-bright);
}

#controls-bar button.btn-mode {
    border-color: var(--amber-dim);
    color: var(--amber-dim);
}

#controls-bar button.btn-mode.selected {
    background: var(--amber);
    border-color: var(--amber-bright);
    color: #000;
}

#controls-bar button.btn-mode:not(.selected):hover {
    border-color: var(--amber);
    color: var(--amber-bright);
}

.ctrl-sep {
    color: var(--amber-dim);
    padding: 0 2px;
}

.ctrl-group {
    display: flex;
    align-items: center;
    gap: 6px;
}

#controls-bar input[type="range"] {
    width: 80px;
    accent-color: var(--amber);
    cursor: pointer;
}

.ctrl-hint {
    color: var(--amber-dim);
    font-size: 11px;
}

.ctrl-check {
    display: flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
    color: var(--amber);
}

.ctrl-check input[type="checkbox"] {
    accent-color: var(--amber);
    cursor: pointer;
}

#stats-header {
    flex-shrink: 0;
    color: var(--amber-bright);
    border-bottom: 1px solid var(--amber-dim);
    padding-bottom: 3px;
    margin-bottom: 3px;
    white-space: pre;
    font-family: var(--font);
    font-size: var(--fs);
    line-height: var(--lh);
}

#program-list {
    flex: 1;
    overflow: auto;
}

.prog-row {
    white-space: pre;
    overflow: hidden;
    text-overflow: clip;
    color: var(--amber);
    font-family: var(--font);
    font-size: var(--fs);
    line-height: var(--lh);
}

.prog-row.top {
    color: var(--amber-bright);
}

.prog-row.singleton {
    color: var(--amber-dim);
}

.prog-row.injected          { color: #00c8c8; }
.prog-row.top.injected      { color: #00ffff; }
.prog-row.singleton.injected { color: #006060; }

/* injector pattern highlight colors (spans inside tape rows) */
.rep-0 { color: #00ffff; }   /* cyan    — [<,}] */
.rep-1 { color: #ff00ff; }   /* magenta — [>.{] */
.rep-2 { color: #aaff00; }   /* lime    — [+.}] */
.rep-3 { color: #4488ff; }   /* blue    — [-,{] */
.rep-4 { color: #ffee00; }   /* yellow  — [>,{] */

/* injector buttons row */
.btn-inj {
    border-width: 1px;
    border-style: solid;
    font-family: var(--font);
    font-size: var(--fs);
    padding: 0 6px;
    cursor: pointer;
    color: #000;
    font-weight: bold;
}
.btn-inj:hover { filter: brightness(1.25); }
.btn-inj-0 { background: #00ffff; border-color: #00bbbb; }
.btn-inj-1 { background: #ff00ff; border-color: #bb00bb; }
.btn-inj-2 { background: #aaff00; border-color: #77bb00; }
.btn-inj-3 { background: #4488ff; border-color: #2255cc; }
.btn-inj-4 { background: #ffee00; border-color: #ccbb00; }