/* ======================
   LIVE MORSE FEATURE OVERLAY
   ====================== */
.morse-feature-overlay {
    background: rgba(10, 10, 8, 0.75);
    padding: 0;
}

.morse-feature-content {
    position: relative;
    width: 100%;
    max-width: none;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.6rem;
    padding: var(--space-sm) var(--space-sm) var(--space-sm);
    border-radius: 0;
    transition: background var(--duration-medium), border-color var(--duration-medium), box-shadow var(--duration-medium);
}

/* Top bar: close + lamps + timer */
.morse-feature-topbar {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 0.2rem;
}

.morse-feature-lamps {
    display: flex;
    gap: 6px;
}

.morse-lamp {
    width: 6px;
    height: 6px;
    border-radius: var(--radius-full);
    transition: background var(--duration-normal), box-shadow var(--duration-normal);
}

.morse-feature-close {
    background: none;
    border: none;
    font-size: var(--text-caption);
    cursor: pointer;
    padding: 0;
    line-height: 1;
}

.morse-feature-timer {
    font-size: var(--text-detail);
    letter-spacing: var(--ls-button);
}

/* Char counter */
.morse-char-counter {
    font-size: var(--text-small);
    font-weight: 400;
    letter-spacing: 0.2em;
    margin: 0;
    transition: color var(--duration-normal), opacity var(--duration-normal);
}

.morse-char-counter.low {
    font-weight: 700;
}

/* Letter display — fixed height, letter & cursor overlap */
.morse-feature-display {
    width: 100%;
    height: 4.5rem;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.morse-feature-current {
    font-size: 5rem;
    font-weight: 700;
    letter-spacing: var(--ls-caption);
    line-height: 1;
    position: absolute;
}

.morse-feature-cursor {
    width: 0.5em;
    height: 0.85em;
    font-size: 3rem;
    animation: cursor-blink 1s step-end infinite;
    position: absolute;
}

@keyframes cursor-blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0; }
}

.morse-feature-sent {
    font-size: var(--text-detail);
    font-weight: 400;
    letter-spacing: 0.15em;
    word-break: break-all;
    max-width: 95%;
    min-height: 1.2em;
}

/* Flip switch */
.morse-mode-toggle {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    cursor: pointer;
    -webkit-tap-highlight-color: transparent;
    user-select: none;
    font-size: 0.5rem;
    letter-spacing: var(--ls-heading);
    text-transform: uppercase;
    align-self: flex-end;
    margin-right: 15%;
}

.morse-mode-label {
    opacity: 0.3;
    transition: opacity var(--duration-normal);
}

.morse-mode-label.active {
    opacity: 1;
}

.morse-flip-switch {
    width: 28px;
    height: 14px;
    border-radius: var(--radius-sm);
    position: relative;
    overflow: hidden;
    transition: background var(--duration-fast), border-color var(--duration-fast);
}

.morse-flip-switch::after {
    content: '';
    position: absolute;
    top: 1px;
    width: 12px;
    height: 12px;
    border-radius: 2px;
    transition: left var(--duration-fast), background var(--duration-fast);
}

/* Keyboard */
.morse-keyboard {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 5px;
    width: 100%;
}

.morse-kb-row {
    display: flex;
    justify-content: center;
    gap: 4px;
    width: 100%;
}

.morse-key {
    flex: 1;
    max-width: 42px;
    height: 36px;
    border-radius: 4px;
    font-size: var(--text-detail);
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    -webkit-tap-highlight-color: transparent;
    user-select: none;
    transition: background var(--duration-instant), border-color var(--duration-instant), color var(--duration-instant),
                box-shadow var(--duration-instant), transform var(--duration-instant);
}

.morse-key--space {
    flex: 4;
    max-width: 160px;
    border-radius: var(--radius-pill);
    font-size: 0.55rem;
    letter-spacing: 0.15em;
}

/* ═══════════════════════════════════════
   TERMINAL — nuclear submarine console
   ═══════════════════════════════════════ */
.mode-terminal {
    background: linear-gradient(180deg, rgba(18, 22, 15, 0.97), rgba(12, 15, 10, 0.97));
    border: 2px solid rgba(60, 160, 60, 0.2);
    box-shadow: inset 0 1px 0 rgba(80, 200, 80, 0.06),
                0 0 20px rgba(40, 120, 40, 0.08);
}

.mode-terminal .morse-feature-close {
    color: rgba(80, 200, 80, 0.4);
    font-family: 'Courier New', Courier, monospace;
    font-weight: 700;
}

.mode-terminal .morse-feature-timer {
    font-family: 'Courier New', Courier, monospace;
    color: rgba(80, 200, 80, 0.3);
}

.mode-terminal .morse-lamp {
    background: rgba(80, 200, 80, 0.6);
    box-shadow: 0 0 4px rgba(80, 200, 80, 0.4);
}

.mode-terminal .morse-lamp:nth-child(2) {
    background: rgba(80, 200, 80, 0.3);
    box-shadow: none;
}

.mode-terminal .morse-lamp:nth-child(3) {
    background: rgba(200, 60, 60, 0.15);
    box-shadow: none;
}

.mode-terminal .morse-feature-display {
    border: 1px solid rgba(80, 200, 80, 0.1);
    border-radius: var(--radius-md);
    background: rgba(0, 0, 0, 0.3);
}

.mode-terminal .morse-feature-current {
    font-family: 'Courier New', Courier, monospace;
    color: rgba(80, 200, 80, 0.9);
    text-shadow: 0 0 8px rgba(80, 200, 80, 0.3);
}

.mode-terminal .morse-feature-cursor {
    background: rgba(80, 200, 80, 0.8);
    box-shadow: 0 0 6px rgba(80, 200, 80, 0.3);
}

.mode-terminal .morse-char-counter {
    font-family: 'Courier New', Courier, monospace;
    color: rgba(80, 200, 80, 0.35);
}

.mode-terminal .morse-char-counter.low {
    color: rgba(255, 80, 60, 0.8);
    text-shadow: 0 0 6px rgba(255, 80, 60, 0.3);
}

.mode-terminal .morse-feature-sent {
    font-family: 'Courier New', Courier, monospace;
    color: rgba(80, 200, 80, 0.5);
}

.mode-terminal .morse-mode-label {
    font-family: 'Courier New', Courier, monospace;
    color: rgba(80, 200, 80, 0.6);
}

.mode-terminal .morse-flip-switch {
    background: rgba(30, 40, 25, 0.9);
    border: 1px solid rgba(80, 200, 80, 0.3);
}

.mode-terminal .morse-flip-switch::after {
    background: rgba(80, 200, 80, 0.7);
    left: 2px;
}

.mode-terminal .morse-key {
    border-radius: var(--radius-sm);
    border: 1px solid rgba(255, 255, 255, 0.08);
    background: rgba(255, 255, 255, 0.06);
    color: rgba(255, 255, 255, 0.45);
    font-family: 'Courier New', Courier, monospace;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.5);
}

.mode-terminal .morse-key:active,
.mode-terminal .morse-key.pressed {
    background: rgba(255, 255, 255, 0.12);
    border-color: rgba(255, 255, 255, 0.15);
    color: rgba(255, 255, 255, 0.7);
    box-shadow: 0 0 4px rgba(255, 255, 255, 0.05);
}

/* ═══════════════════════════════════════
   TYPEWRITER — brass steampunk
   ═══════════════════════════════════════ */
.mode-typewriter {
    background: linear-gradient(180deg, rgba(42, 34, 26, 0.97), rgba(30, 24, 18, 0.97));
    border: 2px solid rgba(160, 120, 70, 0.25);
    box-shadow: inset 0 1px 0 rgba(200, 170, 120, 0.08),
                0 0 20px rgba(100, 70, 30, 0.1);
}

.mode-typewriter .morse-feature-close {
    color: rgba(180, 150, 110, 0.5);
    font-family: 'Cormorant', Georgia, serif;
}

.mode-typewriter .morse-feature-timer {
    font-family: 'Cormorant', Georgia, serif;
    color: rgba(180, 150, 110, 0.3);
}

.mode-typewriter .morse-lamp {
    background: rgba(200, 160, 80, 0.5);
    box-shadow: 0 0 4px rgba(200, 160, 80, 0.3);
}

.mode-typewriter .morse-lamp:nth-child(2) {
    background: rgba(200, 160, 80, 0.25);
    box-shadow: none;
}

.mode-typewriter .morse-lamp:nth-child(3) {
    background: rgba(200, 80, 60, 0.15);
    box-shadow: none;
}

.mode-typewriter .morse-feature-display {
    border: 1px solid rgba(160, 120, 70, 0.12);
    border-radius: var(--radius-md);
    background: rgba(20, 15, 10, 0.3);
}

.mode-typewriter .morse-feature-current {
    font-family: 'Cormorant', Georgia, serif;
    font-weight: 300;
    color: rgba(240, 225, 200, 0.9);
}

/* No cursor in typewriter mode */
.mode-typewriter .morse-feature-cursor {
    display: none;
}

.mode-typewriter .morse-char-counter {
    font-family: 'Cormorant', Georgia, serif;
    color: rgba(180, 150, 110, 0.35);
}

.mode-typewriter .morse-char-counter.low {
    color: rgba(200, 80, 50, 0.8);
}

.mode-typewriter .morse-feature-sent {
    font-family: 'Cormorant', Georgia, serif;
    color: rgba(180, 150, 110, 0.55);
}

.mode-typewriter .morse-mode-label {
    font-family: 'Cormorant', Georgia, serif;
    color: rgba(180, 150, 110, 0.6);
}

.mode-typewriter .morse-flip-switch {
    background: rgba(50, 38, 25, 0.9);
    border: 1px solid rgba(160, 120, 70, 0.35);
}

.mode-typewriter .morse-flip-switch::after {
    background: rgba(200, 160, 80, 0.7);
    left: 14px;
}

.mode-typewriter .morse-key {
    border-radius: var(--radius-full);
    border: 1px solid rgba(160, 120, 70, 0.3);
    background: linear-gradient(180deg, rgba(60, 48, 35, 0.9), rgba(45, 35, 25, 0.9));
    color: rgba(240, 225, 200, 0.7);
    font-family: 'Cormorant', Georgia, serif;
    font-weight: 600;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.4),
                inset 0 1px 0 rgba(255, 255, 255, 0.06);
}

.mode-typewriter .morse-key:active,
.mode-typewriter .morse-key.pressed {
    background: linear-gradient(180deg, rgba(70, 55, 40, 0.9), rgba(50, 40, 30, 0.9));
    border-color: rgba(200, 160, 80, 0.5);
    color: rgba(240, 225, 200, 1);
    box-shadow: 0 1px 1px rgba(0, 0, 0, 0.4);
    transform: translateY(1px);
}