/* =============================================================================
   DSK ReLoop — style.css
   Neon-but-pro audio tool. Tokens forked from the Vokal/Parkour design system.
   Themes: dark (default, asphalt) / light via body.light-theme.
   ========================================================================== */

/* ----------------------------- THEME TOKENS ------------------------------ */
:root {
    --font-ui: "Chakra Petch", "Segoe UI", system-ui, sans-serif;
    --font-mono: "Chakra Petch", ui-monospace, "SFMono-Regular", monospace;

    --fw-light: 300; --fw-reg: 400; --fw-med: 500; --fw-semi: 600; --fw-bold: 700;
    --ls-label: 1.5px; --ls-wide: 2.5px;

    --radius-xs: 4px; --radius-sm: 6px; --radius-md: 10px;
    --radius-lg: 14px; --radius-xl: 20px; --radius-pill: 999px;

    --dur-fast: 120ms; --dur-base: 200ms; --dur-slow: 360ms;
    --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
    --ease-pop: cubic-bezier(0.34, 1.56, 0.64, 1);

    --space-1: 4px; --space-2: 8px; --space-3: 12px; --space-4: 16px;
    --space-5: 20px; --space-6: 24px; --space-8: 32px; --space-touch: 44px;

    /* fixed neon signal colors (consistent meaning across themes) */
    --neon-green: #00ff7a;   /* go / success / buffer active */
    --neon-cyan:  #39e6d6;   /* UI accent / what to tap */
    --neon-amber: #ffd24a;   /* active / reward */
    --neon-red:   #ff4d5e;   /* danger / record */
    --neon-violet:#5ef08a;   /* secondary data */
}

/* ---- DARK (asphalt) — default ---- */
:root {
    --bg:        #16181a;
    --bg-2:      #1d2023;
    --surface:   #232629;
    --raised:    #2b2f33;
    --line:      #34393e;
    --line-soft: #2a2e32;
    --text:      #f2f5f4;
    --text-mut:  #9aa3a1;
    --text-faint:#646d6b;
    --accent:    var(--neon-green);
    --good:      var(--neon-green);
    --warn:      var(--neon-amber);
    --bad:       var(--neon-red);
    --roll-bg:   #16191c;
    --glow: 0.55;
    --shadow-1: 0 2px 8px rgba(0,0,0,0.45);
    --shadow-2: 0 8px 28px rgba(0,0,0,0.55);
    --shadow-3: 0 18px 50px rgba(0,0,0,0.65);
    --scrim: rgba(8,10,11,0.82);
    --on-accent: #05201d;

    /* ---- Legacy variable mapping (used by JS canvas + old rules) ---- */
    --bg-gradient-start: var(--bg);
    --bg-gradient-end: var(--bg-2);
    --app-container-bg: var(--surface);
    --app-container-border: 1px solid var(--line);
    --app-container-shadow: var(--shadow-1);
    --text-color: var(--text);
    --title-color: var(--text);
    --file-name-color: var(--text-mut);
    --canvas-bg: var(--roll-bg);
    --canvas-border: 1px solid var(--line);
    --canvas-shadow: var(--shadow-1);
    --group-bg: var(--bg-2);
    --group-border: 1px solid var(--line-soft);
    --group-shadow: none;
    --button-bg: var(--raised);
    --button-hover-bg: #353a3f;
    --button-disabled-bg: var(--bg-2);
    --button-disabled-color: var(--text-faint);
    --secondary-button-bg: transparent;
    --secondary-button-hover-bg: var(--raised);
    --purple-accent: var(--accent);
    --purple-accent-hover: #4dff9a;
    --red-accent: #4a2a2e;
    --red-accent-hover: #63343a;
    --progress-bar-bg: var(--bg);
    --progress-thumb-color: var(--accent);
    --progress-thumb-shadow: 0 0 8px rgba(0,255,122,calc(var(--glow)*0.7));
    --progress-thumb-disabled: var(--text-faint);
    --loop-span-bg: var(--bg);
    --loop-span-color: var(--text-mut);
    --effect-group-bg: var(--bg-2);
    --effect-group-border: 1px solid var(--line-soft);
    --effect-group-shadow: none;
    --toggle-off-bg: var(--line);
    --toggle-on-bg: var(--good);
    --toggle-circle-color: var(--text-mut);
    --footer-color: var(--text-faint);
    --modal-bg: var(--scrim);
    --modal-content-bg: var(--surface);
    --modal-content-border: 1px solid var(--line);
    --modal-content-shadow: var(--shadow-3);
    --modal-input-bg: var(--bg);
    --modal-input-border: 1px solid var(--line);
    --modal-input-focus-border: var(--accent);
    --modal-input-focus-shadow: 0 0 0 2px rgba(0,255,122,0.35);
    --radio-label-bg: var(--bg-2);
    --radio-label-border: 1px solid var(--line);
    --radio-label-hover-bg: var(--raised);
    --radio-label-checked-bg: var(--accent);
    --radio-label-checked-border: var(--accent);
    --radio-label-checked-color: var(--on-accent);
}

/* ---- LIGHT ---- */
body.light-theme, html.light-theme {
    --bg:        #eef1f0;
    --bg-2:      #e4e8e7;
    --surface:   #f7f9f8;
    --raised:    #ffffff;
    --line:      #d3dad8;
    --line-soft: #e2e7e5;
    --text:      #14201d;
    --text-mut:  #5a6764;
    --text-faint:#8b9794;
    --accent:    #0a9d52;
    --good:      #04a35a;
    --warn:      #c98800;
    --bad:       #e23044;
    --roll-bg:   #f1f4f3;
    --glow: 0.18;
    --shadow-1: 0 2px 8px rgba(60,80,75,0.14);
    --shadow-2: 0 10px 28px rgba(60,80,75,0.18);
    --shadow-3: 0 18px 46px rgba(60,80,75,0.22);
    --scrim: rgba(40,55,52,0.45);
    --on-accent: #ffffff;

    --button-hover-bg: #f0f3f2;
    --purple-accent-hover: #0c8543;
    --red-accent: #f3d6d9;
    --red-accent-hover: #ecc2c7;
    --progress-thumb-shadow: 0 0 6px rgba(10,157,82,0.4);
    --modal-input-focus-shadow: 0 0 0 2px rgba(10,157,82,0.3);
}

/* -------------------------------- RESET ---------------------------------- */
*, *::before, *::after { box-sizing: border-box; }

/* Improve scroll behavior: allow normal scroll but prevent pull-to-refresh */
html, body {
    overscroll-behavior-y: contain;
    touch-action: pan-x pan-y;
    -webkit-text-size-adjust: 100%;
}

/* Disable text selection and iOS callout globally */
body {
    user-select: none;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    -webkit-touch-callout: none;
    -webkit-tap-highlight-color: transparent;
}

/* Re-enable selection and callout for editable fields */
input, textarea, [contenteditable="true"] {
    user-select: text !important;
    -webkit-user-select: text !important;
    -moz-user-select: text !important;
    -ms-user-select: text !important;
    -webkit-touch-callout: default;
    font-family: inherit;
}

button { font-family: inherit; }

/* Class to block body scrolling when a modal is open */
body.modal-open {
    overflow: hidden;
}

body {
    margin: 0;
    font-family: var(--font-ui);
    background: var(--bg);
    color: var(--text);
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 16px;
    box-sizing: border-box;
    overflow-y: auto;
    touch-action: manipulation;
}

/* ----------------------------- APP CONTAINER ----------------------------- */
.app-container {
    background: var(--surface);
    border-radius: var(--radius-lg);
    padding: var(--space-5) var(--space-4);
    box-shadow: var(--shadow-2);
    border: 1px solid var(--line);
    display: flex;
    flex-direction: column;
    gap: 10px;
    width: 100%;
    max-width: 400px;
    text-align: center;
}

/* ------------------------------- HEADER ---------------------------------- */
.app-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--space-2);
    margin-bottom: 2px;
    width: 100%;
    padding-bottom: var(--space-2);
    border-bottom: 1px solid var(--line);
}

.app-container h1 {
    color: var(--text);
    margin: 0;
    font-size: 17px;
    font-weight: var(--fw-bold);
    letter-spacing: var(--ls-wide);
    text-transform: uppercase;
    line-height: 1;
    flex-grow: 1;
    text-align: left;
    text-shadow: 0 0 12px rgba(0,255,122,calc(var(--glow)*0.4));
}

.header-icon-btn {
    width: 38px;
    height: 38px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    background: var(--raised);
    border: 1px solid var(--line);
    color: var(--text);
    font-size: 16px;
    cursor: pointer;
    flex-shrink: 0;
    transition: transform var(--dur-fast) var(--ease-out), border-color var(--dur-fast), background var(--dur-fast);
}

.header-icon-btn:hover {
    border-color: var(--accent);
}

.header-icon-btn:active {
    transform: scale(0.92);
}

#audioFile {
    display: none;
}

.file-name-display {
    font-size: 11px;
    letter-spacing: 0.5px;
    color: var(--text-mut);
    word-break: break-all;
    margin-bottom: 8px;
    text-align: center;
}

/* ------------------------------ WAVEFORM ---------------------------------- */
.waveform-container {
    position: relative;
    width: 100%;
    margin-bottom: 10px;
}

#waveformCanvas {
    width: 100%;
    height: 220px; /* taller working area for touch editing (was ~180px via 2:1 attribute ratio) */
    background: var(--roll-bg);
    border-radius: var(--radius-lg);
    border: 1px solid var(--line);
    box-shadow: var(--shadow-1);
    display: block;
    touch-action: none; /* let JS handle all touch gestures on the waveform */
}

.visualizer-toggle-btn,
.waveform-zoom-btn,
.waveform-action-btn {
    position: absolute;
    background: rgba(0,0,0,0.45);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    color: var(--text);
    border: 1px solid var(--line-soft);
    border-radius: var(--radius-sm);
    padding: 6px 9px;
    font-size: 11px;
    font-weight: var(--fw-semi);
    letter-spacing: var(--ls-label);
    text-transform: uppercase;
    cursor: pointer;
    z-index: 10;
    transition: border-color var(--dur-fast), color var(--dur-fast), background var(--dur-fast), transform var(--dur-fast);
}

body.light-theme .visualizer-toggle-btn,
body.light-theme .waveform-zoom-btn,
body.light-theme .waveform-action-btn {
    background: rgba(255,255,255,0.78);
}

.visualizer-toggle-btn { top: 8px; right: 8px; }

.visualizer-toggle-btn:hover,
.waveform-zoom-btn:hover,
.waveform-action-btn:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.visualizer-toggle-btn:active,
.waveform-zoom-btn:active,
.waveform-action-btn:active {
    transform: scale(0.92);
}

.visualizer-toggle-btn:disabled,
.waveform-zoom-btn:disabled,
.waveform-action-btn:disabled {
    opacity: 0.28;
    color: var(--text-faint);
    border-color: var(--line-soft);
    cursor: not-allowed;
    pointer-events: none;
}

.waveform-zoom-btn.zoom-out { left: 8px; top: 8px; }
.waveform-zoom-btn.zoom-in  { left: 8px; bottom: 8px; }

.waveform-action-btn {
    display: flex;
    align-items: center;
    gap: 5px;
}

.waveform-action-btn.buffer-toggle {
    right: 8px;
    bottom: 8px;
}

.waveform-action-btn.buffer-toggle.active {
    border-color: var(--good);
    color: var(--good);
    box-shadow: 0 0 14px rgba(0,255,122,calc(var(--glow)*0.5));
}

.waveform-action-btn.buffer-toggle.active i {
    color: var(--good);
    text-shadow: 0 0 8px var(--good);
}

/* ------------------------------- GROUPS ----------------------------------- */
.controls-group, .settings-group, .loop-controls-group, .effects-group {
    background: var(--bg-2);
    border-radius: var(--radius-md);
    padding: var(--space-3);
    border: 1px solid var(--line-soft);
    box-shadow: none;
}

.main-controls {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-bottom: var(--space-3);
    align-items: center;
}

/* ------------------------------- BUTTONS ---------------------------------- */
.control-btn, .loop-btn, .speed-adj-btn {
    background: var(--raised);
    color: var(--text);
    border: 1px solid var(--line);
    padding: 10px 14px;
    min-height: 42px;
    border-radius: var(--radius-md);
    cursor: pointer;
    font-size: 13px;
    font-weight: var(--fw-bold);
    letter-spacing: var(--ls-label);
    text-transform: uppercase;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 7px;
    transition: transform var(--dur-fast) var(--ease-out), border-color var(--dur-fast), filter var(--dur-fast), background var(--dur-fast);
    flex-grow: 1;
    max-width: 120px;
}

.control-btn:hover:not(:disabled), .loop-btn:hover:not(:disabled), .speed-adj-btn:hover:not(:disabled) {
    border-color: var(--accent);
    filter: brightness(1.08);
}

.control-btn:active:not(:disabled), .loop-btn:active:not(:disabled), .speed-adj-btn:active:not(:disabled) {
    transform: translateY(2px);
}

.control-btn:disabled, .loop-btn:disabled, .speed-adj-btn:disabled {
    opacity: 0.3;
    background: var(--bg-2);
    color: var(--text-faint);
    border-color: var(--line-soft);
    cursor: not-allowed;
}

.control-btn.recording {
    background: var(--bad);
    border-color: transparent;
    color: #fff;
    box-shadow: 0 0 16px rgba(255,77,94,calc(var(--glow)));
    animation: recpulse 1.4s ease-in-out infinite;
}

@keyframes recpulse {
    50% { box-shadow: 0 0 28px rgba(255,77,94,1); }
}

/* ------------------------------ TRANSPORT --------------------------------- */
.transport-bar {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

#progressBar {
    width: 100%;
    -webkit-appearance: none;
    appearance: none;
    height: 8px;
    background: var(--bg);
    border: 1px solid var(--line);
    border-radius: var(--radius-pill);
    outline: none;
    transition: background var(--dur-base);
}

#progressBar::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 20px;
    height: 20px;
    background: var(--accent);
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 0 0 8px rgba(0,255,122,calc(var(--glow)*0.7));
    transition: background var(--dur-base), transform var(--dur-fast);
}

#progressBar::-webkit-slider-thumb:hover {
    background: var(--purple-accent-hover);
}

#progressBar:disabled::-webkit-slider-thumb {
    background: var(--text-faint);
    box-shadow: none;
    cursor: not-allowed;
}

.time-display {
    font-size: 12px;
    font-variant-numeric: tabular-nums;
    letter-spacing: 0.5px;
    color: var(--text-mut);
}

/* Loop shift buttons beneath progress bar */
.loop-shift-buttons {
    display: flex;
    justify-content: center;
    gap: 5px;
    margin-top: 4px;
    flex-wrap: wrap;
}

.shift-btn {
    background: var(--bg);
    color: var(--text-mut);
    border: 1px solid var(--line);
    padding: 5px 6px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 11px;
    font-weight: var(--fw-semi);
    min-width: 39px;
    min-height: 32px;
    transition: border-color var(--dur-fast), color var(--dur-fast), transform var(--dur-fast);
}

.shift-btn:hover:not(:disabled) {
    border-color: var(--accent);
    color: var(--text);
}

.shift-btn:active:not(:disabled) {
    transform: scale(0.92);
}

.shift-btn:disabled {
    opacity: 0.28;
    color: var(--text-faint);
    cursor: not-allowed;
}

/* ------------------------------- SLIDERS ---------------------------------- */
.slider-control {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px;
}

.slider-control label {
    flex-basis: 70px;
    text-align: right;
    font-size: 10px;
    font-weight: var(--fw-semi);
    letter-spacing: var(--ls-label);
    text-transform: uppercase;
    color: var(--text-faint);
}

.slider-control label span {
    color: var(--text);
    font-variant-numeric: tabular-nums;
}

.speed-control {
    flex-direction: column;
    align-items: center;
    gap: 5px;
}

.speed-control label {
    text-align: center;
    flex-basis: auto;
}

.speed-adjust-group {
    display: flex;
    align-items: center;
    gap: 8px;
    width: 100%;
}

.speed-adj-btn {
    padding: 6px 10px;
    font-size: 14px;
    min-width: 40px;
    min-height: 36px;
    flex-shrink: 0;
    max-width: 50px;
}

.slider-control input[type="range"] {
    flex-grow: 1;
    height: 6px;
    background: var(--bg);
    border: 1px solid var(--line-soft);
    border-radius: var(--radius-pill);
    -webkit-appearance: none;
    appearance: none;
    outline: none;
}

.slider-control input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 17px;
    height: 17px;
    background: var(--accent);
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 0 0 6px rgba(0,255,122,calc(var(--glow)*0.6));
    transition: background var(--dur-base), transform var(--dur-fast);
}

.slider-control input[type="range"]::-webkit-slider-thumb:hover {
    background: var(--purple-accent-hover);
}

.slider-control input[type="range"]:disabled::-webkit-slider-thumb {
    background: var(--text-faint);
    box-shadow: none;
    cursor: not-allowed;
}

/* ----------------------------- SECTION TITLES ----------------------------- */
.loop-controls-group h3, .effects-group h3 {
    margin-top: 0;
    margin-bottom: var(--space-3);
    color: var(--text-faint);
    font-size: 10px;
    font-weight: var(--fw-semi);
    letter-spacing: var(--ls-wide);
    text-transform: uppercase;
}

/* ------------------------------ LOOP POINTS ------------------------------- */
/* Two compact columns: A on the left, B on the right */
.loop-points {
    display: flex;
    flex-direction: row;
    justify-content: center;
    gap: 8px;
    margin-bottom: var(--space-3);
    flex-wrap: nowrap;
}

.loop-point-group {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    flex: 1 1 0;
    min-width: 0;
    max-width: none;
    padding: var(--space-2);
    border: 1px solid var(--line-soft);
    border-radius: var(--radius-md);
    background: var(--bg);
}

.loop-point-main {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 100%;
    gap: 4px;
}

.loop-point-controls {
    display: flex;
    justify-content: center;
    width: 100%;
    gap: 4px;
}

.loop-points .loop-btn {
    width: 100%;
    flex-shrink: 0;
    font-size: 11px;
    padding: 8px 6px;
    min-height: 36px;
    max-width: none;
    border-color: var(--accent);
    color: var(--accent);
    background: transparent;
}

.loop-points .loop-btn:hover:not(:disabled) {
    background: var(--raised);
}

.loop-points .loop-btn:disabled {
    border-color: var(--line-soft);
    color: var(--text-faint);
}

.loop-btn span {
    color: inherit;
}

.loop-points span {
    font-size: 12px;
    font-variant-numeric: tabular-nums;
    color: var(--text-mut);
    text-align: center;
    width: 100%;
}

.loop-adj-btn, .clear-single-loop-btn {
    padding: 6px 4px;
    font-size: 11px;
    min-height: 34px;
    max-width: none;
    flex: 1 1 0;
    min-width: 0;
}

.clear-single-loop-btn {
    background: var(--red-accent);
    border-color: transparent;
    color: var(--bad);
}

.clear-single-loop-btn:hover:not(:disabled) {
    background: var(--red-accent-hover);
    border-color: var(--bad);
}

.loop-actions {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: var(--space-3);
    flex-wrap: wrap;
}

.loop-actions .control-btn {
    width: auto;
    max-width: 180px;
    flex-grow: 1;
}

/* ------------------------------- EFFECTS ---------------------------------- */
.effects-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.effect-control-group {
    background: var(--bg);
    border-radius: var(--radius-md);
    padding: 10px;
    border: 1px solid var(--line-soft);
    box-shadow: none;
}

.effect-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
    padding-bottom: 6px;
    border-bottom: 1px solid var(--line-soft);
}

/* Collapsible effect header: title acts as a toggle */
.effect-title-toggle {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-grow: 1;
    cursor: pointer;
    background: transparent;
    border: none;
    color: var(--text);
    padding: 0;
    text-align: left;
    font: inherit;
}

.effect-collapse-icon {
    font-size: 11px;
    color: var(--text-mut);
    transition: transform var(--dur-base) var(--ease-out);
    flex-shrink: 0;
    width: 12px;
    text-align: center;
}

.effect-control-group.collapsed .effect-collapse-icon {
    transform: rotate(-90deg);
}

.effect-control-group.collapsed .effect-params,
.effect-control-group.collapsed .effect-presets {
    display: none;
}

/* Custom preset selector (own dropdown, not native) */
.effect-presets {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 10px;
}

.effect-presets .preset-label {
    font-size: 9.5px;
    letter-spacing: var(--ls-label);
    text-transform: uppercase;
    color: var(--text-faint);
    font-weight: var(--fw-semi);
    flex-shrink: 0;
}

.preset-select {
    position: relative;
    flex-grow: 1;
}

.preset-select-btn {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 6px;
    width: 100%;
    min-height: 34px;
    padding: 0 10px;
    border-radius: var(--radius-sm);
    background: var(--bg);
    border: 1px solid var(--line);
    color: var(--text);
    font-size: 12px;
    font-weight: var(--fw-semi);
    cursor: pointer;
    transition: border-color var(--dur-fast);
}

.preset-select-btn:hover { border-color: var(--accent); }
.preset-select.open .preset-select-btn { border-color: var(--accent); }
.preset-select-btn .caret { font-size: 10px; opacity: 0.7; transition: transform var(--dur-fast); }
.preset-select.open .preset-select-btn .caret { transform: rotate(180deg); }

.preset-menu {
    position: absolute;
    top: calc(100% + 4px);
    left: 0;
    right: 0;
    z-index: 30;
    max-height: 220px;
    overflow-y: auto;
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-3);
    padding: 4px;
    display: none;
}

.preset-select.open .preset-menu { display: block; }

.preset-opt {
    display: block;
    width: 100%;
    text-align: left;
    min-height: 36px;
    padding: 0 12px;
    border-radius: var(--radius-sm);
    background: transparent;
    border: none;
    color: var(--text);
    font-size: 12.5px;
    font-weight: var(--fw-med);
    cursor: pointer;
}

.preset-opt:hover { background: var(--raised); }
.preset-opt.sel { background: var(--accent); color: var(--on-accent); font-weight: var(--fw-bold); }

/* Danger / reset button in settings */
.setting-row-full {
    width: 100%;
    margin-bottom: var(--space-3);
}

.setting-row-full .control-btn {
    width: 100%;
    max-width: none;
    flex-grow: 0;
}

.danger-btn {
    width: 100%;
    max-width: none;
    background: var(--red-accent);
    border-color: transparent;
    color: var(--bad);
}

.danger-btn:hover:not(:disabled) {
    background: var(--red-accent-hover);
    border-color: var(--bad);
}

/* Save-location modal radios reuse .radio-options-group */

/* Spinner shown while exporting / encoding */
.dsk-spinner {
    width: 38px;
    height: 38px;
    margin: 6px auto 14px;
    border: 3px solid var(--line);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: dskspin 0.8s linear infinite;
}

@keyframes dskspin {
    to { transform: rotate(360deg); }
}

.effect-params {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

/* Custom toggle switch styling (Vokal .switch style) */
.effect-toggle-switch {
    display: none;
}

.toggle-label {
    position: relative;
    display: inline-block;
    width: 46px;
    height: 27px;
    background-color: var(--line);
    border: 1px solid var(--line);
    border-radius: var(--radius-pill);
    cursor: pointer;
    transition: background-color var(--dur-base), border-color var(--dur-base);
    vertical-align: middle;
    flex-shrink: 0;
}

.toggle-label::after {
    content: '';
    position: absolute;
    width: 21px;
    height: 21px;
    border-radius: 50%;
    background-color: var(--text-mut);
    top: 2px;
    left: 2px;
    transition: transform var(--dur-base) var(--ease-out), background-color var(--dur-base), box-shadow var(--dur-base);
}

.effect-toggle-switch:checked + .toggle-label {
    background-color: color-mix(in srgb, var(--good) 35%, var(--bg));
    border-color: var(--good);
}

.effect-toggle-switch:checked + .toggle-label::after {
    transform: translateX(19px);
    background-color: var(--good);
    box-shadow: 0 0 8px var(--good);
}

.effect-toggle-switch:disabled + .toggle-label {
    opacity: 0.4;
    cursor: not-allowed;
}

.effects-actions {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: 5px;
    flex-wrap: wrap;
}

.effects-actions .control-btn {
    width: auto;
    max-width: 220px;
    flex-grow: 1;
}

/* -------------------------------- FOOTER ---------------------------------- */
.app-footer {
    margin-top: var(--space-5);
    font-size: 11px;
    color: var(--text-faint);
    text-align: center;
}

.app-footer a {
    color: var(--accent);
    text-decoration: none;
    font-weight: var(--fw-bold);
    transition: color var(--dur-fast);
}

.app-footer a:hover {
    text-decoration: underline;
}

/* -------------------------------- MODALS ---------------------------------- */
.modal-overlay {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: var(--scrim);
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    justify-content: center;
    align-items: center;
}

/* Secondary modals open on top of the settings modal */
#resetConfirmModal,
#saveFormatModal,
#messageModal,
#progressModal {
    z-index: 1100;
}

.modal-content {
    background: var(--surface);
    border-radius: var(--radius-xl);
    padding: var(--space-5);
    box-shadow: var(--shadow-3);
    border: 1px solid var(--line);
    width: 90%;
    max-width: 360px;
    color: var(--text);
    text-align: center;
    animation: pop var(--dur-base) var(--ease-pop);
    position: relative;
    display: flex;
    flex-direction: column;
    max-height: 90vh;
}

@keyframes pop {
    from { opacity: 0; transform: scale(0.96); }
    to { opacity: 1; transform: scale(1); }
}

@keyframes fadeIn {
    from { opacity: 0; transform: scale(0.95); }
    to { opacity: 1; transform: scale(1); }
}

.modal-content h2 {
    color: var(--text);
    margin-top: 0;
    margin-bottom: var(--space-4);
    font-size: 17px;
    font-weight: var(--fw-bold);
    letter-spacing: 0.5px;
    flex-shrink: 0;
}

.modal-close-btn {
    position: absolute;
    top: 12px;
    right: 12px;
    width: 34px;
    height: 34px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    color: var(--text-mut);
    font-size: 15px;
    cursor: pointer;
    border-radius: var(--radius-sm);
    transition: background var(--dur-fast), color var(--dur-fast);
}

.modal-close-btn:hover {
    background: var(--raised);
    color: var(--accent);
}

.modal-close-btn:active {
    background: var(--bg-2);
}

.modal-body {
    margin-bottom: var(--space-4);
    flex-grow: 1;
    overflow-y: auto;
    padding-right: 5px;
    line-height: 1.55;
    font-size: 13.5px;
    text-align: left;
}

.modal-body p {
    margin-bottom: 1em;
    color: var(--text-mut);
}

.modal-body h3 {
    color: var(--text);
    font-size: 12px;
    font-weight: var(--fw-bold);
    letter-spacing: var(--ls-label);
    text-transform: uppercase;
    margin-top: 1.5em;
    margin-bottom: 0.8em;
}

.modal-body ul {
    list-style-type: none;
    padding-left: 0;
    margin-bottom: 1em;
}

.modal-body ul li {
    position: relative;
    padding-left: 1.5em;
    margin-bottom: 0.5em;
    color: var(--text-mut);
}

.modal-body ul li::before {
    content: '\2022';
    color: var(--accent);
    position: absolute;
    left: 0;
    top: 0;
}

.modal-body i {
    color: var(--accent);
    margin-right: 0.2em;
}

.modal-body label {
    display: block;
    margin-bottom: 8px;
    font-size: 13.5px;
    font-weight: var(--fw-med);
}

.modal-body input[type="number"] {
    width: calc(100% - 20px);
    padding: 10px;
    margin-bottom: 10px;
    border-radius: var(--radius-md);
    border: 1px solid var(--line);
    background: var(--bg);
    color: var(--text);
    font-size: 14px;
    font-variant-numeric: tabular-nums;
    text-align: center;
    user-select: text;
    -webkit-user-select: text;
    -moz-user-select: text;
    -ms-user-select: text;
    transition: border-color var(--dur-fast), box-shadow var(--dur-fast);
}

.modal-body input[type="number"]:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: var(--modal-input-focus-shadow);
}

.modal-info {
    font-size: 11.5px;
    color: var(--text-faint);
    margin-top: 5px;
}

/* Radio button groups within modals (Vokal .opt style) */
.radio-options-group {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 8px;
    margin-bottom: var(--space-3);
}

.radio-options-group input[type="radio"] {
    display: none;
}

.radio-options-group label {
    background: var(--bg-2);
    padding: 9px 14px;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: border-color var(--dur-fast), background var(--dur-fast), color var(--dur-fast);
    border: 1px solid var(--line);
    font-size: 12px;
    font-weight: var(--fw-semi);
    letter-spacing: 0.5px;
    text-align: center;
    color: var(--text-mut);
}

.radio-options-group label:hover {
    background: var(--raised);
}

.repetitions-options label {
    flex-grow: 1;
    max-width: 80px;
}

.radio-options-group input[type="radio"]:checked + label {
    background: var(--accent);
    border-color: var(--accent);
    color: var(--on-accent);
    font-weight: var(--fw-bold);
}

#customRepetitionsInput {
    margin-top: 10px;
    width: calc(100% - 20px);
}

/* Settings modal rows */
#settingsModal .modal-body .setting-row {
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin-bottom: var(--space-3);
    width: 100%;
}

#settingsModal .modal-body .setting-label {
    margin: 0;
    font-size: 10px;
    font-weight: var(--fw-semi);
    letter-spacing: var(--ls-label);
    text-transform: uppercase;
    color: var(--text-faint);
    flex-shrink: 0;
    white-space: nowrap;
}

#settingsModal .modal-body .setting-row .radio-options-group {
    margin-bottom: 0;
    flex-grow: 1;
    justify-content: flex-end;
}

/* Loop adjustment step control in settings modal */
.loop-adjust-container {
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin-bottom: var(--space-3);
    width: 100%;
}

.loop-adjust-label {
    margin: 0;
    font-size: 10px;
    font-weight: var(--fw-semi);
    letter-spacing: var(--ls-label);
    text-transform: uppercase;
    color: var(--text-faint);
    flex-shrink: 0;
}

.loop-adjust-controls {
    display: flex;
    align-items: center;
    gap: 8px;
    justify-content: center;
    width: auto;
    flex-grow: 0;
}

.loop-adjust-controls input[type="number"] {
    width: 80px;
    padding: 8px;
    border-radius: var(--radius-md);
    border: 1px solid var(--line);
    background: var(--bg);
    color: var(--text);
    font-size: 14px;
    font-variant-numeric: tabular-nums;
    text-align: center;
    user-select: text;
    -webkit-user-select: text;
    -moz-user-select: text;
    -ms-user-select: text;
    margin-bottom: 0;
}

.reset-value-btn {
    background: var(--raised);
    color: var(--text);
    border: 1px solid var(--line);
    padding: 8px 10px;
    border-radius: var(--radius-md);
    cursor: pointer;
    font-size: 12px;
    min-width: 36px;
    height: 38px;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-shrink: 0;
    transition: border-color var(--dur-fast), transform var(--dur-fast);
}

.reset-value-btn:hover {
    border-color: var(--accent);
}

.reset-value-btn:active {
    transform: scale(0.92);
}

.modal-buttons {
    display: flex;
    justify-content: flex-end;
    gap: var(--space-2);
    flex-shrink: 0;
    margin-top: var(--space-3);
    flex-wrap: wrap;
}

.modal-buttons .control-btn {
    flex-grow: 1;
    max-width: 150px;
    padding: 10px 15px;
}

/* Primary (confirm) buttons in modals get accent fill */
#exportConfirmBtn, #settingsSaveBtn, #messageModalOkBtn, #helpOkBtn {
    background: var(--accent);
    border-color: transparent;
    color: var(--on-accent);
}

#exportConfirmBtn:hover:not(:disabled), #settingsSaveBtn:hover:not(:disabled),
#messageModalOkBtn:hover:not(:disabled), #helpOkBtn:hover:not(:disabled) {
    border-color: transparent;
    filter: brightness(1.08);
}

.secondary-btn {
    background: transparent;
}

.secondary-btn:hover:not(:disabled) {
    background: var(--raised);
}

#messageModalText {
    user-select: text;
    -webkit-user-select: text;
    -moz-user-select: text;
    -ms-user-select: text;
}

/* ----------------------------- REDUCED MOTION ----------------------------- */
@media (prefers-reduced-motion: reduce) {
    * { animation-duration: 0.01ms !important; }
}

/* -------------------------------- MOBILE ---------------------------------- */
@media (max-width: 480px) {
    body {
        justify-content: flex-start;
        padding: 10px;
    }

    .app-container {
        padding: var(--space-4) var(--space-3);
        gap: 10px;
    }

    .app-container h1 {
        font-size: 15px;
    }

    #waveformCanvas {
        height: 200px;
    }

    .main-controls {
        flex-direction: row;
        gap: 8px;
    }

    .control-btn {
        width: auto;
        max-width: 120px;
    }

    .speed-control {
        flex-direction: column;
        align-items: center;
    }
    .speed-adjust-group {
        width: 100%;
    }
    .speed-adj-btn {
        min-width: unset;
        flex-basis: 40px;
    }

    /* Loop points: keep the two compact columns (A | B) also on mobile */
    .loop-points {
        gap: 8px;
    }

    .loop-point-group {
        padding: 6px;
    }

    .loop-actions .control-btn {
        max-width: none;
    }

    .modal-content {
        width: 95%;
        padding: var(--space-4);
    }

    .modal-buttons {
        gap: 8px;
    }

    .effects-actions {
        flex-direction: column;
    }
    .effects-actions .control-btn {
        max-width: none;
    }
}