.intro-text {
    margin-bottom: 2rem;
    line-height: 1.7;
}

/* Tap pad */
.tap-pad {
    width: 100%;
    height: 280px;
    border: 2px solid var(--surface-b);
    border-radius: 12px;
    background: var(--mantle);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    user-select: none;
    transition: border-color 0.2s, background 0.2s, box-shadow 0.2s;
    outline: none;
    position: relative;
    overflow: hidden;
}

.tap-pad:hover {
    border-color: var(--surface-a);
    background: var(--crust);
}

.tap-pad:focus {
    border-color: var(--purple);
    box-shadow: 0 0 0 3px rgba(147, 107, 229, 0.2);
}

.tap-pad-prompt {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
    color: var(--overlay-b);
    pointer-events: none;
}

.tap-pad-prompt .keys {
    display: flex;
    gap: 1rem;
    font-size: 1.5rem;
}

.tap-pad-prompt .key {
    width: 56px;
    height: 56px;
    border: 2px solid var(--surface-b);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: 'Monaco', 'Consolas', 'Courier New', monospace;
    font-weight: 700;
    font-size: 1.4rem;
    color: var(--overlay-a);
    background: var(--base);
    box-shadow: 0 2px 0 var(--surface-c);
}

.tap-pad-prompt .hint {
    font-size: 0.9rem;
    color: var(--overlay-a);
}

/* Progress section */
.progress-section {
    margin-top: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.progress-row {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.progress-label {
    font-size: 0.85rem;
    color: var(--subtext-a);
    min-width: 80px;
    text-align: right;
    font-family: 'Monaco', 'Consolas', 'Courier New', monospace;
}

.progress-bar-track {
    flex: 1;
    height: 24px;
    background: var(--mantle);
    border-radius: 12px;
    border: 1px solid var(--surface-b);
    overflow: hidden;
    position: relative;
}

.progress-bar-fill {
    height: 100%;
    border-radius: 12px;
    transition: width 0.3s ease;
}

.progress-bar-fill.timer {
    width: 100%;
    background: linear-gradient(90deg, var(--teal), var(--blue));
}

.progress-bar-fill.flips {
    width: 0%;
    background: linear-gradient(90deg, var(--purple), var(--pink));
}

.progress-value {
    font-size: 0.85rem;
    color: var(--subtext-b);
    min-width: 56px;
    font-family: 'Monaco', 'Consolas', 'Courier New', monospace;
}

/* Pulse animation on keypress */
@keyframes pad-pulse {
    0% { background: var(--crust); }
    100% { background: var(--mantle); }
}

.tap-pad.pulse {
    animation: pad-pulse 0.15s ease-out;
}

/* Active state: hide prompt, show "recording" look */
.tap-pad.active {
    border-color: var(--purple);
    box-shadow: 0 0 0 3px rgba(147, 107, 229, 0.2);
}

/* Results section */
.results {
    margin-top: 2.5rem;
}

.results h2 {
    margin-bottom: 0.5rem;
}

.sequence-block {
    margin-bottom: 1.5rem;
}

.sequence-block h3 {
    margin-bottom: 0.4rem;
    font-size: 1rem;
    color: var(--subtext-b);
}

.grid-wrapper {
    position: relative;
}

.grid-copy {
    position: absolute;
    top: 0.5rem;
    right: 0.5rem;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--overlay-a);
    padding: 4px;
    display: flex;
    align-items: center;
    border-radius: 4px;
    transition: color 0.2s, background 0.2s;
}

.grid-copy:hover {
    color: var(--purple);
    background: var(--surface-b);
}

.grid-copy.copied {
    color: var(--green);
}

.flip-grid {
    font-family: 'Monaco', 'Consolas', 'Courier New', monospace;
    font-size: 1rem;
    line-height: 1.6;
    letter-spacing: 0.15em;
    background: var(--mantle);
    border: 1px solid var(--surface-b);
    border-radius: 8px;
    padding: 1rem 1.25rem;
    margin: 0;
    overflow-x: auto;
}

/* Answer row with obfuscated spoiler */
.answer-row {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    margin-top: 0.5rem;
}

.answer-text {
    cursor: default;
    font-family: 'Monaco', 'Consolas', 'Courier New', monospace;
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--text);
}

.answer-obscured,
.answer-real {
    display: inline-block;
    min-width: 1ch;
    text-align: center;
}

.answer-obscured {
    color: var(--overlay-b);
}

.answer-real {
    color: var(--text);
}

.copy-icon {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--overlay-a);
    padding: 2px;
    display: flex;
    align-items: center;
    transition: color 0.2s;
}

.copy-icon:hover {
    color: var(--purple);
}

.copy-status {
    font-size: 0.8rem;
    color: var(--green);
}

.share-row {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    margin-top: 1rem;
    font-size: 0.95rem;
    color: var(--subtext-a);
}

.hidden {
    display: none;
}

/* Finished state */
.tap-pad.done {
    border-color: var(--green);
    box-shadow: 0 0 0 3px rgba(64, 160, 43, 0.15);
    cursor: default;
}