/* ==========================================================================
   mrbeat.css
   ========================================================================== */


/* ==========================================================================
   1. PAGE LAYOUT
========================================================================== */
.mrbeat-page {
    flex: 1;
    display: flex;
    flex-direction: column;
    background: var(--page-bg);
    overflow: hidden;
}


/* ==========================================================================
   2. TOP BAR
========================================================================== */
.mrbeat-topbar {
    flex-shrink: 0;
    padding: 0.75rem 1.25rem 0.5rem;
}

.mrbeat-pulse {
    height: 3px;
    border-radius: 2px;
}

/* Pulse bar */
.mrbeat-pulse-fill {
    height: 100%;
    width: 100%;
    border-radius: 2px;
    background-color: var(--border);
    --pulse-time: 0.1s;
}

.mrbeat-pulse-fill.beat-fill     { animation: beat-fill var(--pulse-time); }
.mrbeat-pulse-fill.downbeat-fill { animation: downbeat-fill var(--pulse-time); }

/* Full page flash */
.mrbeat-page.beat-fill     { animation: fullscreen-beat 0.2s; }
.mrbeat-page.downbeat-fill { animation: fullscreen-downbeat 0.2s; }

.mrbeat-brand {
    font-size: 0.95rem;
    font-weight: 700;
    letter-spacing: 0.5px;
    color: var(--text);
    line-height: 1;
    text-transform: uppercase;
    text-align: center;
}

.mrbeat-brand span {
    color: var(--golden);
}


/* ==========================================================================
   3. STAGE
========================================================================== */
.mrbeat-stage {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    overflow-y: auto;
}


/* ==========================================================================
   4. METRONOME CONTAINER
========================================================================== */
.metronome-container {
    --knob-gradient-1: var(--page-bg);
    --knob-gradient-2: var(--panel-bg);
    --knob-shadow-1: rgba(0, 0, 0, 0.4);
    --knob-shadow-2: rgba(255, 255, 255, 0.02);
    --pulse-time: 0.1s;

    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    background-color: var(--panel-bg);
    border: 1px solid var(--border);
    border-radius: var(--border-radius);
    width: 300px;
    padding: 20px;
    box-shadow: 0 10px 30px var(--shadow-color);
}


/* ==========================================================================
   5. TOP CONTROLS
========================================================================== */
.top-controls {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 5px 0;
    box-sizing: border-box;
}

/* Bottone help/scorciatoie (occupa lo slot che era della skin-toggle) */
.help-toggle {
    background: none;
    border: none;
    color: var(--muted);
    font-size: 18px;
    cursor: pointer;
    padding: 0;
    line-height: 1;
    transition: color 0.2s ease;
}

.help-toggle:hover {
    color: var(--golden);
}

.settings-toggle {
    background: none;
    border: none;
    color: var(--muted);
    font-size: 18px;
    cursor: pointer;
    padding: 0;
    line-height: 1;
    transition: color 0.2s ease, transform 0.2s ease;
}

.settings-toggle:hover {
    color: var(--golden);
    transform: rotate(45deg);
}


/* ==========================================================================
   6. VOLUME
========================================================================== */
.volume-container {
    position: relative;
    flex: 1;
    max-width: 50%;
    display: flex;
}

.volume-container input[type="range"] {
    width: 100%;
    cursor: pointer;
    -webkit-appearance: none;
    appearance: none;
    height: 4px;
    border-radius: 3px;
    outline: none;
    background: var(--border);
    transition: background 0.2s ease;
}

.volume-container input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--golden);
    cursor: pointer;
    border: none;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
    transition: transform 0.1s ease;
}

.volume-container input[type="range"]::-webkit-slider-thumb:hover {
    transform: scale(1.2);
}

.volume-container input[type="range"]::-moz-range-thumb {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--golden);
    cursor: pointer;
    border: none;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

.volume-tooltip {
    opacity: 0;
    position: absolute;
    color: var(--text);
    background: var(--page-bg);
    border: 1px solid var(--border);
    padding: 2px 6px;
    border-radius: var(--border-radius);
    font-size: 10px;
    font-weight: 700;
    transform: translateX(-50%);
    pointer-events: none;
    top: -24px;
    text-align: center;
    min-width: 22px;
    transition: opacity 0.2s ease;
    font-variant-numeric: tabular-nums;
}

.volume-tooltip.active {
    opacity: 1;
}


/* ==========================================================================
   7. BPM DISPLAY
========================================================================== */
.bpm-display {
    margin: 20px 0 10px;
    font-size: 42px;
    font-weight: 700;
    color: var(--text);
    font-variant-numeric: tabular-nums;
    letter-spacing: -1px;
}

/* Flash in training mode quando il BPM cambia automaticamente */
.bpm-display.flash-up   { animation: bpm-flash-up   0.8s ease-out; }
.bpm-display.flash-down { animation: bpm-flash-down 0.8s ease-out; }


/* ==========================================================================
   8. TIME SIGNATURE
========================================================================== */
.time-signature {
    display: flex;
    align-items: center;
    color: var(--text);
    margin-bottom: 5px;
}

.time-signature > div {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
}

.time-signature span {
    margin: 0 8px;
    font-size: 18px;
    color: var(--muted);
}

.time-signature-btn {
    color: var(--muted);
    background: none;
    border: none;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 26px;
    height: 20px;
    font-size: 16px;
    font-weight: 700;
    line-height: 1;
    cursor: pointer;
    transition: color 0.2s;
    padding: 0;
}

.time-signature-btn:hover { color: var(--golden); }
.time-signature-btn:disabled { opacity: 0.3; cursor: not-allowed; }

.time-signature-display {
    text-align: center;
    min-width: 30px;
    font-size: 22px;
    font-weight: 700;
    color: var(--text);
    font-variant-numeric: tabular-nums;
}


/* ==========================================================================
   9. VISUAL STAGE (LED + DOTS senza spostamenti)
   - Stage con altezza fissa
   - LED e dots entrambi nel DOM, switch via visibility
   - Dots SEMPRE in singola riga (no wrap), max 12 (limite forzato anche lato JS)
   - Le dimensioni del dot si adattano via JS attraverso var --dot-size
========================================================================== */
.visual-stage {
    position: relative;
    width: 100%;
    height: 30px;
    margin: 6px 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.led-container,
.beat-visual {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    visibility: hidden;
}

.visual-stage.mode-led  .led-container { visibility: visible; }
.visual-stage.mode-dots .beat-visual   { visibility: visible; }

.led {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background-color: var(--border);
}

.led-beat-pulse     { animation: beat-pulse var(--pulse-time); }
.led-downbeat-pulse { animation: downbeat-pulse var(--pulse-time); }

/* Dots */
.beat-visual {
    --dot-size: 10px;
    --dot-gap: 8px;

    flex-wrap: nowrap;
    gap: var(--dot-gap);
    width: 100%;
    overflow: hidden;
}

.beat-dot {
    background-color: var(--border);
    width: var(--dot-size);
    height: var(--dot-size);
    min-width: var(--dot-size);
    min-height: var(--dot-size);
    flex-shrink: 0;
    border-radius: 50%;
    transition: transform 0.1s, background-color 0.1s;
    will-change: transform;
}

.beat-dot.active   { animation: beat-pulse 0.2s ease-out; }
.beat-dot.downbeat { animation: downbeat-pulse 0.2s ease-out; }


/* ==========================================================================
   10. KNOB
========================================================================== */
.knob-container {
    position: relative;
    width: 200px;
    height: 200px;
    margin: 15px 0;
    cursor: grab;
}

.bpm-btn {
    color: var(--muted);
    font-size: 22px;
    font-weight: 400;
    line-height: 1;
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    cursor: pointer;
    border: none;
    background: none;
    width: 32px;
    height: 32px;
    z-index: 2;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color 0.2s;
}

.bpm-btn:hover { color: var(--golden); }
.bpm-btn.right { right: 0; }
.bpm-btn.left  { left: 0; }

.knob {
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background: linear-gradient(145deg, var(--knob-gradient-1), var(--knob-gradient-2));
    box-shadow: 5px 5px 10px var(--knob-shadow-1), -5px -5px 10px var(--knob-shadow-2);
}

.knob-indicator {
    position: absolute;
    width: 4px;
    height: 40%;
    background-color: var(--golden);
    border-radius: 100px;
    top: 10%;
    left: calc(50% - 2px);
    transform-origin: center bottom;
    box-shadow: 0 0 8px rgba(255, 193, 7, 0.4);
}

.dragging { user-select: none; -webkit-user-select: none; }


/* ==========================================================================
   11. DOWNBEAT TOGGLE
========================================================================== */
.downbeat-container {
    font-size: 14px;
    font-weight: 500;
    color: var(--text);
    display: flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
    margin-top: 10px;
}

.downbeat {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: var(--border);
    transition: background-color 0.3s, box-shadow 0.3s;
}

.downbeat.active {
    background-color: var(--success);
    box-shadow: 0 0 6px var(--success);
}


/* ==========================================================================
   12. CONTROLS (Start + Tap)
========================================================================== */
.controls {
    display: flex;
    gap: 12px;
    align-items: center;
    margin-top: 20px;
    width: 100%;
    justify-content: space-around;
}

.controls button {
    flex: 1;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 10px 20px;
    font-size: 15px;
    font-weight: 700;
    font-family: var(--font-sans-serif);
    background-color: var(--golden);
    color: #000;
    border: 1px solid var(--golden);
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: background-color 0.2s, color 0.2s, border-color 0.2s;
}

.controls button:hover {
    background-color: var(--golden-hover);
    border-color: var(--golden-hover);
}

#startStop.is-playing {
    background-color: transparent;
    color: var(--golden);
}

#startStop.is-playing:hover {
    background-color: rgba(255, 193, 7, 0.1);
}

button:focus { outline: none; }

#tap.tapped { animation: tapPulse 0.3s; }


/* ==========================================================================
   13. VISUAL SWITCH
========================================================================== */
.visual-switch {
    font-size: 12px;
    font-family: var(--font-sans-serif);
    font-weight: 600;
    border: 1px solid var(--border);
    border-radius: 100px;
    margin-top: 15px;
    padding: 6px 14px;
    color: var(--muted);
    background-color: transparent;
    cursor: pointer;
    transition: color 0.2s, border-color 0.2s;
}

.visual-switch:hover {
    color: var(--golden);
    border-color: var(--golden);
}


/* ==========================================================================
   14. SETTINGS PANEL + BACKDROP
========================================================================== */
.settings-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
    z-index: 999;
}

.settings-backdrop.open {
    opacity: 1;
    visibility: visible;
}

.settings-panel {
    position: fixed;
    top: 0;
    right: 0;
    width: 360px;
    max-width: 100%;
    height: 100vh;
    height: 100dvh;
    background: var(--panel-bg);
    border-left: 1px solid var(--border);
    box-shadow: -8px 0 24px var(--shadow-color);
    padding: 1.5rem 1.5rem 1.5rem;
    overflow-y: auto;
    z-index: 1000;
    transform: translateX(100%);
    transition: transform 0.3s ease;
}

.settings-panel.open { transform: translateX(0); }

.settings-panel h2 {
    font-size: 1rem;
    color: var(--golden);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin: 0 0 1.25rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--border);
}

.bottom-border-row {
    padding: 0.85rem 0;
    border-bottom: 1px solid var(--border);
}

.bottom-border-row:last-of-type { border-bottom: none; }

.setting-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.setting-row.ai-start { align-items: flex-start; }
.setting-row.jc-end   { justify-content: flex-end; margin-top: 1rem; }

.switch-label {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text);
    cursor: pointer;
}

.text-end {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 0.35rem;
}


/* ==========================================================================
   15. TOGGLE SWITCH
========================================================================== */
.switch {
    position: relative;
    display: inline-block;
    width: 42px;
    height: 24px;
    flex-shrink: 0;
}

.switch input { opacity: 0; width: 0; height: 0; }

.slider {
    position: absolute;
    cursor: pointer;
    inset: 0;
    background-color: var(--border);
    transition: background-color 0.25s ease;
}

.slider:before {
    position: absolute;
    content: "";
    height: 18px;
    width: 18px;
    left: 3px;
    bottom: 3px;
    background-color: var(--muted);
    transition: transform 0.25s ease, background-color 0.25s ease;
}

.slider.round { border-radius: 100px; }
.slider.round:before { border-radius: 50%; }

input:checked + .slider { background-color: rgba(255, 193, 7, 0.3); }
input:checked + .slider:before {
    transform: translateX(18px);
    background-color: var(--golden);
}


/* ==========================================================================
   16. THREE-STATE SWITCH
========================================================================== */
.three-state-switch {
    position: relative;
    width: 72px;
    height: 24px;
    background-color: var(--border);
    border-radius: 100px;
    cursor: pointer;
    transition: background-color 0.25s ease;
}

.three-state-slider {
    position: absolute;
    top: 3px;
    left: 3px;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background-color: var(--muted);
    transition: transform 0.25s ease, background-color 0.25s ease;
}

.three-state-switch[data-state="1"] { background-color: rgba(255, 193, 7, 0.3); }
.three-state-switch[data-state="1"] .three-state-slider {
    transform: translateX(24px);
    background-color: var(--golden);
}

.three-state-switch[data-state="2"] { background-color: rgba(255, 193, 7, 0.3); }
.three-state-switch[data-state="2"] .three-state-slider {
    transform: translateX(48px);
    background-color: var(--golden);
    box-shadow: 0 0 8px var(--golden);
}

.training-mode {
    font-size: 0.7rem;
    font-weight: 700;
    color: var(--golden);
    letter-spacing: 1px;
    text-transform: uppercase;
    min-width: 60px;
    text-align: right;
}


/* ==========================================================================
   17. TRAINING / DROPBEAT INPUTS
========================================================================== */
.training-controls,
.dropbeat-controls {
    margin-top: 0.85rem;
    padding-left: 0.5rem;
    display: none;
    flex-direction: column;
    gap: 0.5rem;
}

.training-controls.show,
.dropbeat-controls.show { display: flex; }

.training-input-row {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.training-label {
    font-size: 0.85rem;
    color: var(--text);
    min-width: 70px;
}

.training-unit {
    font-size: 0.75rem;
    color: var(--muted);
}

.training-input {
    width: 56px;
    padding: 0.35rem 0.5rem;
    background: var(--page-bg);
    border: 1px solid var(--border);
    border-radius: var(--border-radius);
    color: var(--text);
    font-family: var(--font-sans-serif);
    font-size: 0.9rem;
    font-weight: 600;
    text-align: center;
    font-variant-numeric: tabular-nums;
    -webkit-appearance: textfield;
    -moz-appearance: textfield;
    appearance: textfield;
    transition: border-color 0.2s ease;
}

.training-input::-webkit-outer-spin-button,
.training-input::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.training-input:focus {
    outline: none;
    border-color: var(--golden);
}

.training-info {
    margin-top: 0.5rem;
    padding: 0.6rem 0.75rem;
    background: var(--page-bg);
    border: 1px solid var(--border);
    border-radius: var(--border-radius);
    font-size: 0.75rem;
    color: var(--muted);
    line-height: 1.5;
}

.training-info p { margin: 0; }
.training-info p + p { margin-top: 0.4rem; }
.training-info strong { color: var(--golden); font-weight: 700; }

.training-input-row.burst-only { display: none; }
.training-controls.show.is-burst .training-input-row.burst-only { display: flex; }


/* ==========================================================================
   18. SETTINGS CLOSE
========================================================================== */
.settings-close {
    padding: 0.5rem 1.25rem;
    background: none;
    color: var(--muted);
    border: 1px solid var(--border);
    border-radius: var(--border-radius);
    cursor: pointer;
    font-family: var(--font-sans-serif);
    font-size: 0.85rem;
    font-weight: 600;
    transition: color 0.2s, border-color 0.2s;
}

.settings-close:hover {
    color: var(--text);
    border-color: var(--text);
}


/* ==========================================================================
   19. PREMIUM MODAL (specifico)
========================================================================== */
.premium-modal {
    padding: 1.75rem 1.5rem 1.25rem;
    text-align: center;
}

.premium-modal-icon {
    width: 56px;
    height: 56px;
    margin: 0 auto 0.85rem;
    border-radius: 50%;
    background: rgba(255, 193, 7, 0.12);
    color: var(--golden);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.premium-modal h3 {
    margin: 0 0 0.5rem;
    font-size: 1.15rem;
    color: var(--text);
}

.premium-modal p {
    margin: 0 0 1.25rem;
    font-size: 0.85rem;
    color: var(--muted);
    line-height: 1.5;
}

.premium-modal-actions {
    display: flex;
    gap: 0.5rem;
}

.premium-modal-actions .btn-modal {
    flex: 1;
}


/* ==========================================================================
   20. RESPONSIVE
========================================================================== */
@media (max-width: 768px) {
    .mrbeat-topbar { padding: 0.4rem 1rem 0.3rem; }

    .mrbeat-brand { font-size: 0.85rem; }

    .mrbeat-stage { padding: 0.5rem; }

    .metronome-container {
        width: 100%;
        max-width: 280px;
        padding: 16px 18px;
    }

    .bpm-display { font-size: 32px; margin: 12px 0 6px; }

    .knob-container { width: 140px; height: 140px; margin: 8px 0; }

    .time-signature-display { font-size: 18px; }
    .time-signature span { font-size: 16px; }
    .visual-stage { height: 24px; margin: 4px 0; }

    .downbeat-container { margin-top: 6px; }
    .controls { margin-top: 12px; }
    .controls button { font-size: 14px; padding: 8px 14px; }

    .visual-switch { margin-top: 10px; padding: 5px 12px; }

    .beat-visual { max-width: 200px; }

    .settings-panel {
        width: 100%;
        border-left: none;
    }
}


/* ==========================================================================
   21. KEYFRAMES
========================================================================== */
@keyframes beat-pulse {
    0%   { transform: scale(1);   opacity: 1;   background-color: var(--danger);  box-shadow: 0 0 10px var(--danger); }
    50%  { transform: scale(1.5); opacity: 0.8; background-color: var(--danger);  box-shadow: 0 0 10px var(--danger); }
    100% { transform: scale(1);   opacity: 1;   background-color: var(--danger);  box-shadow: 0 0 10px var(--danger); }
}

@keyframes downbeat-pulse {
    0%   { transform: scale(1);   opacity: 1;   background-color: var(--success); box-shadow: 0 0 10px var(--success); }
    50%  { transform: scale(1.5); opacity: 0.8; background-color: var(--success); box-shadow: 0 0 10px var(--success); }
    100% { transform: scale(1);   opacity: 1;   background-color: var(--success); box-shadow: 0 0 10px var(--success); }
}

@keyframes downbeat-fill {
    0%   { opacity: 1;   background-color: var(--success); box-shadow: 0 0 10px var(--success); }
    50%  { opacity: 0.8; background-color: var(--success); box-shadow: 0 0 10px var(--success); }
    100% { opacity: 1;   background-color: var(--success); box-shadow: 0 0 10px var(--success); }
}

@keyframes beat-fill {
    0%   { opacity: 1;   background-color: var(--danger);  box-shadow: 0 0 10px var(--golden); }
    50%  { opacity: 0.8; background-color: var(--danger);  box-shadow: 0 0 10px var(--golden); }
    100% { opacity: 1;   background-color: var(--danger);  box-shadow: 0 0 10px var(--golden); }
}

@keyframes tapPulse {
    0%   { transform: scale(1);   box-shadow: 0 0 8px rgba(255, 193, 7, 0.6); }
    50%  { transform: scale(0.92); }
    100% { transform: scale(1); }
}

@keyframes fullscreen-beat {
    0%   { background-color: var(--danger); }
    100% { background-color: var(--page-bg); }
}

@keyframes fullscreen-downbeat {
    0%   { background-color: var(--success); }
    100% { background-color: var(--page-bg); }
}

@keyframes bpm-flash-up {
    0%   { color: var(--danger);  text-shadow: 0 0 12px var(--danger); }
    50%  { color: var(--golden);  text-shadow: 0 0 12px var(--golden); }
    100% { color: var(--text);    text-shadow: none; }
}

@keyframes bpm-flash-down {
    0%   { color: var(--success); text-shadow: 0 0 12px var(--success); }
    50%  { color: var(--golden);  text-shadow: 0 0 12px var(--golden); }
    100% { color: var(--text);    text-shadow: none; }
}

/* ==========================================================================
   22. LIE TO ME — reveal (occhio peek)
========================================================================== */
.bpm-row {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin: 20px 0 10px;
}

/* Il display perde il margin verticale: ora lo gestisce .bpm-row */
.bpm-row .bpm-display {
    margin: 0;
}

.lie-reveal {
    flex-shrink: 0;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: none;
    border: 1px solid var(--border);
    border-radius: 50%;
    color: var(--muted);
    font-size: 13px;
    cursor: pointer;
    padding: 0;
    transition: color 0.2s ease, border-color 0.2s ease;
    -webkit-user-select: none;
    user-select: none;
    -webkit-touch-callout: none;   /* niente menu contestuale su long-press iOS */
}

.lie-reveal:hover {
    color: var(--golden);
    border-color: var(--golden);
}

/* Stato "sto sbirciando": occhio aperto e dorato finché tieni premuto */
.lie-reveal:active {
    color: var(--golden);
    border-color: var(--golden);
    background: rgba(255, 193, 7, 0.12);
}

/* Il display mentre mostra il valore reale (durante il peek) */
.bpm-display.peeking {
    color: var(--golden);
    text-shadow: 0 0 12px rgba(255, 193, 7, 0.35);
}