:root {
    /* Pure Minimal Dark & Carbon Palette */
    --bg-base: #090a0d;
    --card-bg: #111318;
    --panel-bg: #15181f;
    --panel-subtle: #1a1e27;
    
    --card-border: rgba(255, 255, 255, 0.08);
    --card-border-focus: rgba(255, 255, 255, 0.16);
    
    /* Single Signature Accent: Electric Lime (High Energy, Fresh, Music Tech Vibe) */
    --accent-sig: #10e760;
    --accent-sig-hover: #22f473;
    --accent-sig-glow: rgba(16, 231, 96, 0.28);
    --accent-sig-dim: rgba(16, 231, 96, 0.12);
    --accent-sig-border: rgba(16, 231, 96, 0.35);

    /* Neutral Monochrome Hierarchy */
    --text-primary: #ffffff;
    --text-secondary: #9aa1ad;
    --text-muted: #565d6b;
    --text-dim: #323842;

    /* Sequencer Track Accents (Cohesive Minimal Dark / Electric Lime) */
    --track-kick: #10e760;
    --track-snare: #f3f4f6;
    --track-hat-c: #9ca3af;
    --track-hat-o: #cbd5e1;
    --track-perc: #00c853;

    --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    user-select: none;
    -webkit-user-select: none;
}

body {
    background-color: var(--bg-base);
    background-image: 
        radial-gradient(ellipse 60% 30% at 50% 0%, rgba(16, 231, 96, 0.04) 0%, transparent 100%),
        linear-gradient(180deg, rgba(255, 255, 255, 0.01) 0%, transparent 100%);
    color: var(--text-primary);
    font-family: var(--font-sans);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
}

.app-container {
    max-width: 1200px;
    width: 100%;
    margin: 0 auto;
    padding: 18px 24px 40px;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    position: relative;
}

/* Header */
.app-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 14px 0 20px;
    border-bottom: 1px solid var(--card-border);
    margin-bottom: 24px;
    gap: 16px;
}

.header-left {
    display: flex;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    user-select: none;
}

.logo-text {
    font-weight: 800;
    font-size: 1.45rem;
    letter-spacing: -0.5px;
    color: #fff;
    font-family: var(--font-sans);
}

.accent-text {
    color: var(--accent-sig);
}

.header-right {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-left: auto;
}

/* Style Selector Nested Inside Card */
.genre-selector-wrapper.nested-in-card {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: rgba(16, 231, 96, 0.08);
    border: 1px solid var(--accent-sig-border);
    padding: 3px 10px;
    border-radius: 6px;
    transition: all 0.2s ease;
}

.genre-selector-wrapper.nested-in-card:hover,
.genre-selector-wrapper.nested-in-card:focus-within {
    border-color: var(--accent-sig);
    background: rgba(16, 231, 96, 0.14);
}

.genre-selector-wrapper.nested-in-card label {
    font-size: 0.72rem;
    color: var(--accent-sig);
    font-weight: 700;
    font-family: var(--font-mono);
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.genre-selector-wrapper.nested-in-card .genre-select {
    background: transparent;
    border: none;
    color: #fff;
    font-family: var(--font-sans);
    font-weight: 700;
    font-size: 0.76rem;
    cursor: pointer;
    outline: none;
    padding-right: 2px;
}

.genre-select option {
    background: #14171f;
    color: #fff;
    font-weight: 600;
}
}

/* Card Stage */
.card-stage {
    position: relative;
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}

.swipe-arrow-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: rgba(17, 19, 24, 0.85);
    border: 1px solid var(--card-border);
    color: var(--text-secondary);
    font-size: 1.6rem;
    line-height: 1;
    cursor: pointer;
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
    backdrop-filter: blur(10px);
}

.swipe-arrow-btn.left {
    left: -22px;
}

.swipe-arrow-btn.right {
    right: -22px;
}

.swipe-arrow-btn:hover {
    background: var(--panel-subtle);
    border-color: var(--accent-sig);
    color: #fff;
    transform: translateY(-50%) scale(1.08);
}

/* The Loop Card */
.loop-card {
    position: relative;
    overflow: hidden;
    width: 100%;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 16px;
    padding: 24px;
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.6), inset 0 1px 0 rgba(255, 255, 255, 0.05);
    transition: transform 0.3s cubic-bezier(0.2, 0.8, 0.2, 1), opacity 0.3s ease;
    touch-action: pan-y;
}

/* Card Cooking / Anti-Spam Overlay */
.card-cooking-overlay {
    position: absolute;
    inset: 0;
    background: rgba(9, 10, 13, 0.78);
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 60;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.25s ease;
}

.card-cooking-overlay.active {
    opacity: 1;
    pointer-events: all; /* Blocks all spam clicks/touches during load */
}

.cooking-badge {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 14px;
    background: #11141c;
    border: 1px solid var(--accent-sig-border);
    padding: 18px 32px;
    border-radius: 14px;
    box-shadow: 0 12px 35px rgba(0, 0, 0, 0.85), 0 0 25px var(--accent-sig-glow);
    animation: cookBadgePulse 2s ease-in-out infinite alternate;
}

@keyframes cookBadgePulse {
    0% { transform: scale(0.98); }
    100% { transform: scale(1.02); }
}

.cooking-spinner-bars {
    display: flex;
    align-items: center;
    gap: 5px;
    height: 32px;
}

.cooking-spinner-bars .bar {
    width: 4px;
    height: 100%;
    background: var(--accent-sig);
    border-radius: 3px;
    box-shadow: 0 0 10px var(--accent-sig-glow);
    animation: cookEqualizer 0.75s ease-in-out infinite alternate;
}

.cooking-spinner-bars .bar-1 { animation-delay: 0.1s; height: 40%; }
.cooking-spinner-bars .bar-2 { animation-delay: 0.3s; height: 95%; }
.cooking-spinner-bars .bar-3 { animation-delay: 0.45s; height: 65%; }
.cooking-spinner-bars .bar-4 { animation-delay: 0.18s; height: 100%; }
.cooking-spinner-bars .bar-5 { animation-delay: 0.35s; height: 50%; }

@keyframes cookEqualizer {
    0% {
        transform: scaleY(0.2);
        opacity: 0.5;
    }
    100% {
        transform: scaleY(1.0);
        opacity: 1;
    }
}

.cooking-text {
    font-family: var(--font-mono);
    font-size: 0.82rem;
    font-weight: 800;
    letter-spacing: 2px;
    color: var(--accent-sig);
    text-shadow: 0 0 12px var(--accent-sig-glow);
}

.loop-card.swiping-left {
    animation: swipeLeftOut 0.32s forwards cubic-bezier(0.4, 0, 0.2, 1);
}

.loop-card.swiping-right {
    animation: swipeRightOut 0.32s forwards cubic-bezier(0.4, 0, 0.2, 1);
}

.loop-card.enter-from-right {
    animation: swipeRightIn 0.32s forwards cubic-bezier(0.2, 0.8, 0.2, 1);
}

.loop-card.enter-from-left {
    animation: swipeLeftIn 0.32s forwards cubic-bezier(0.2, 0.8, 0.2, 1);
}

@keyframes swipeLeftOut {
    to {
        transform: translateX(-120%) rotate(-4deg);
        opacity: 0;
    }
}

@keyframes swipeRightOut {
    to {
        transform: translateX(120%) rotate(4deg);
        opacity: 0;
    }
}

@keyframes swipeRightIn {
    from {
        transform: translateX(100%) rotate(3deg);
        opacity: 0;
    }
    to {
        transform: translateX(0) rotate(0);
        opacity: 1;
    }
}

@keyframes swipeLeftIn {
    from {
        transform: translateX(-100%) rotate(-3deg);
        opacity: 0;
    }
    to {
        transform: translateX(0) rotate(0);
        opacity: 1;
    }
}

/* Card Header */
.card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 20px;
    flex-wrap: wrap;
    gap: 16px;
}

.beat-badges {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 8px;
    flex-wrap: wrap;
}

.genre-pill {
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid var(--card-border);
    color: #fff;
    padding: 3px 10px;
    border-radius: 6px;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.3px;
}

.bpm-pill {
    background: var(--accent-sig-dim);
    border: 1px solid var(--accent-sig-border);
    color: var(--accent-sig);
    padding: 3px 10px;
    border-radius: 6px;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 700;
}

.swing-pill {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--card-border);
    color: var(--text-secondary);
    padding: 3px 10px;
    border-radius: 6px;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 600;
}

.length-pill {
    background: transparent;
    border: 1px dashed var(--card-border);
    color: var(--text-muted);
    padding: 3px 10px;
    border-radius: 6px;
    font-size: 0.7rem;
    font-weight: 700;
    font-family: var(--font-mono);
}

/* 4-Bar / 8-Bar Interactive Switch */
.bars-toggle {
    display: inline-flex;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--card-border);
    border-radius: 6px;
    padding: 2px;
    gap: 2px;
}

.bar-toggle-opt {
    background: transparent;
    border: 1px solid transparent;
    color: var(--text-muted);
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 700;
    padding: 2px 8px;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.15s ease;
}

.bar-toggle-opt:hover {
    color: #fff;
}

.bar-toggle-opt.active {
    background: var(--accent-sig-dim);
    color: var(--accent-sig);
    border-color: var(--accent-sig-border);
}

.pro-tag-mini {
    background: rgba(255, 215, 0, 0.15);
    border: 1px solid rgba(255, 215, 0, 0.4);
    color: #ffd700;
    font-size: 0.58rem;
    font-weight: 800;
    padding: 1px 4px;
    border-radius: 3px;
    margin-left: 3px;
    letter-spacing: 0.3px;
}

.title-row {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
}

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

.btn-share {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-secondary);
    border: 1px solid var(--card-border);
}

.btn-share:hover {
    background: rgba(16, 231, 96, 0.1);
    color: var(--accent-sig);
    border-color: var(--accent-sig-border);
}

.loop-title {
    font-size: 1.7rem;
    font-weight: 800;
    letter-spacing: -0.5px;
    color: #fff;
}

.download-actions {
    display: flex;
    gap: 8px;
    align-items: center;
}

/* Button System */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 9px 16px;
    border-radius: 8px;
    font-family: var(--font-sans);
    font-weight: 700;
    font-size: 0.8rem;
    cursor: pointer;
    border: none;
    transition: all 0.15s ease;
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-secondary);
    border: 1px solid var(--card-border);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
    border-color: var(--card-border-focus);
}

.btn-download-mp3 {
    background: rgba(255, 255, 255, 0.06);
    color: var(--text-primary);
    border: 1px solid var(--card-border);
}

.btn-download-mp3:hover {
    background: rgba(255, 255, 255, 0.12);
    border-color: rgba(255, 255, 255, 0.25);
}

.btn-download-wav {
    background: rgba(255, 255, 255, 0.08);
    color: #fff;
    border: 1px solid var(--card-border-focus);
}

.btn-download-wav:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: #fff;
}

.btn-download-stems {
    background: var(--accent-sig);
    color: #000;
    font-weight: 800;
    box-shadow: 0 4px 14px var(--accent-sig-glow);
}

.btn-download-stems:hover {
    background: var(--accent-sig-hover);
    transform: translateY(-1px);
    box-shadow: 0 6px 18px rgba(16, 231, 96, 0.4);
}

.pro-tag {
    font-size: 0.6rem;
    background: #000;
    color: var(--accent-sig);
    padding: 1px 5px;
    border-radius: 3px;
    font-weight: 800;
    margin-left: 2px;
}

.btn-pro-badge {
    background: var(--accent-sig-dim);
    border: 1px solid var(--accent-sig-border);
    color: var(--accent-sig);
    font-weight: 800;
    letter-spacing: 0.5px;
}

.btn-pro-badge:hover {
    background: var(--accent-sig);
    color: #000;
}

.btn-pro-badge.unlocked {
    background: rgba(255, 255, 255, 0.06);
    border-color: rgba(255, 255, 255, 0.2);
    color: #fff;
}

/* Waveform Container */
.waveform-container {
    position: relative;
    background: #0d0f14;
    border: 1px solid var(--card-border);
    border-radius: 12px;
    padding: 12px;
    height: 130px;
    overflow: hidden;
    margin-bottom: 20px;
    cursor: pointer;
    transition: border-color 0.2s ease;
}

.waveform-container:hover {
    border-color: var(--card-border-focus);
}

.waveform-overlay-top {
    position: absolute;
    top: 8px;
    left: 14px;
    right: 14px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 5;
    pointer-events: none;
}

.counter-display {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    font-weight: 700;
    color: #fff;
    background: rgba(0, 0, 0, 0.7);
    padding: 3px 8px;
    border-radius: 4px;
    border: 1px solid var(--card-border);
    display: flex;
    gap: 6px;
    align-items: center;
}

.counter-display .divider {
    color: var(--accent-sig);
}

.time-display {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    color: var(--text-muted);
    background: rgba(0, 0, 0, 0.7);
    padding: 3px 8px;
    border-radius: 4px;
    border: 1px solid var(--card-border);
}

#waveformCanvas {
    width: 100%;
    height: 100%;
    display: block;
}

.playhead-scrubber {
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    width: 2px;
    background: var(--accent-sig);
    box-shadow: 0 0 8px var(--accent-sig);
    z-index: 4;
    pointer-events: none;
}

.bar-markers-grid {
    position: absolute;
    bottom: 4px;
    left: 12px;
    right: 12px;
    display: grid;
    grid-template-columns: repeat(8, 1fr);
    pointer-events: none;
}

.bar-col {
    border-left: 1px solid rgba(255, 255, 255, 0.05);
    padding-left: 4px;
    font-family: var(--font-mono);
    font-size: 0.65rem;
    color: var(--text-dim);
}

.bar-col:first-child {
    border-left: none;
}

/* Player Controls Row */
.player-controls-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--panel-bg);
    padding: 12px 18px;
    border-radius: 12px;
    border: 1px solid var(--card-border);
    margin-bottom: 24px;
    gap: 16px;
    flex-wrap: wrap;
}

.left-ctrls, .right-ctrls {
    display: flex;
    align-items: center;
    gap: 14px;
}

.play-btn {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: #fff;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #000;
    font-size: 1.2rem;
    transition: all 0.2s ease;
}

.play-btn:hover {
    transform: scale(1.06);
    background: var(--accent-sig);
}

.play-icon {
    margin-left: 2px;
}

.volume-control {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-muted);
}

#volumeSlider {
    width: 76px;
    accent-color: var(--accent-sig);
    cursor: pointer;
}

/* Center CTA Roll Button */
.center-cta {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
}

.roll-btn {
    background: var(--accent-sig);
    color: #000;
    padding: 12px 28px;
    border-radius: 24px;
    font-size: 0.95rem;
    font-weight: 800;
    letter-spacing: 0.5px;
    box-shadow: 0 4px 18px var(--accent-sig-glow);
}

.roll-btn:hover {
    background: var(--accent-sig-hover);
    transform: translateY(-1px);
    box-shadow: 0 6px 22px rgba(16, 231, 96, 0.45);
}

.roll-icon {
    font-size: 1.1rem;
}

.swipe-hint {
    font-size: 0.72rem;
    color: var(--text-muted);
    font-family: var(--font-mono);
}

/* Tempo Controls */
.tempo-control {
    display: flex;
    align-items: center;
    gap: 8px;
    background: rgba(0, 0, 0, 0.3);
    padding: 6px 12px;
    border-radius: 6px;
    border: 1px solid var(--card-border);
}

.tempo-control label {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-weight: 600;
}

#bpmValue {
    font-family: var(--font-mono);
    font-weight: 700;
    font-size: 0.95rem;
    color: #fff;
    min-width: 32px;
    text-align: center;
}

.btn-step {
    width: 22px;
    height: 22px;
    background: rgba(255, 255, 255, 0.08);
    border: none;
    border-radius: 4px;
    color: #fff;
    font-weight: bold;
    cursor: pointer;
}

.btn-step:hover {
    background: rgba(255, 255, 255, 0.2);
}

/* Sequencer Section */
.sequencer-section {
    background: var(--panel-bg);
    border: 1px solid var(--card-border);
    border-radius: 14px;
    padding: 18px;
    overflow: hidden;
}

.sequencer-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
    flex-wrap: wrap;
    gap: 12px;
}

.seq-title {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 700;
    font-size: 0.88rem;
    letter-spacing: 0.5px;
    color: #fff;
}

.seq-subtitle {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-weight: normal;
    margin-left: 8px;
}

/* Sequencer Legend */
.seq-legend {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.72rem;
    color: var(--text-muted);
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 5px;
}

.legend-box {
    width: 10px;
    height: 10px;
    border-radius: 2px;
}

.legend-box.accent {
    background: var(--accent-sig);
}

.legend-box.ghost {
    background: rgba(16, 231, 96, 0.45);
}

.legend-box.off {
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

/* Timeline Header above tracks */
.seq-timeline-header {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 0 12px 6px;
    min-width: 100%;
    box-sizing: border-box;
}

.timeline-spacer {
    width: 235px;
    flex-shrink: 0;
}

.timeline-bars-row {
    flex: 1;
    display: grid;
    gap: 6px;
    min-width: 0;
}

.timeline-bar-col {
    background: rgba(255, 255, 255, 0.02);
    border-bottom: 2px solid rgba(255, 255, 255, 0.08);
    padding: 4px 6px;
    text-align: center;
    font-family: var(--font-mono);
    font-size: 0.65rem;
    font-weight: 700;
    color: var(--text-muted);
    border-radius: 3px 3px 0 0;
    transition: all 0.15s ease;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.timeline-bar-col.playing {
    border-bottom-color: var(--accent-sig);
    color: var(--accent-sig);
    background: rgba(16, 231, 96, 0.06);
}

.timeline-bar-col .badge-mini {
    font-size: 0.55rem;
    color: var(--accent-sig);
    background: var(--accent-sig-dim);
    padding: 1px 4px;
    border-radius: 2px;
    margin-left: 3px;
}

/* Sequencer Grid */
.sequencer-grid {
    display: flex;
    flex-direction: column;
    gap: 8px;
    width: 100%;
    overflow-x: auto;
    overflow-y: hidden;
    padding-bottom: 4px;
}

.sequencer-grid::-webkit-scrollbar {
    height: 5px;
}

.sequencer-grid::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.03);
    border-radius: 3px;
}

.sequencer-grid::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.15);
    border-radius: 3px;
}

.sequencer-grid::-webkit-scrollbar-thumb:hover {
    background: var(--accent-sig);
}

.track-row {
    display: flex;
    align-items: center;
    gap: 12px;
    background: rgba(0, 0, 0, 0.25);
    padding: 7px 12px;
    border-radius: 8px;
    border: 1px solid var(--card-border);
    min-width: 100%;
    box-sizing: border-box;
}

.track-info {
    width: 235px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    gap: 10px;
}

.track-color-indicator {
    width: 3px;
    height: 36px;
    border-radius: 2px;
    background: var(--text-muted);
}

.track-meta {
    flex: 1;
    overflow: hidden;
    min-width: 0;
}

.track-name-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.track-label {
    font-weight: 700;
    font-size: 0.78rem;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    color: #fff;
    white-space: nowrap;
}

.track-sample-btn {
    background: transparent;
    border: none;
    font-family: var(--font-mono);
    font-size: 0.65rem;
    color: var(--text-muted);
    cursor: pointer;
    text-align: left;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    display: block;
    max-width: 95px;
}

.track-sample-btn:hover {
    color: var(--accent-sig);
    text-decoration: underline;
}

.track-controls-col {
    display: flex;
    flex-direction: column;
    gap: 5px;
    align-items: flex-end;
}

.track-actions {
    display: flex;
    gap: 4px;
}

.track-mini-sliders {
    display: flex;
    align-items: center;
    gap: 6px;
}

.mini-slider-wrap {
    display: flex;
    align-items: center;
    gap: 3px;
}

.mini-label {
    font-size: 0.58rem;
    font-family: var(--font-mono);
    color: var(--text-muted);
    font-weight: 700;
}

.mini-range {
    -webkit-appearance: none;
    appearance: none;
    width: 36px;
    height: 3px;
    background: rgba(255, 255, 255, 0.12);
    border-radius: 2px;
    outline: none;
    cursor: pointer;
}

.mini-range::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 9px;
    height: 9px;
    border-radius: 50%;
    background: #9ca3af;
    cursor: pointer;
    transition: background 0.15s ease, transform 0.15s ease;
}

.mini-range:hover::-webkit-slider-thumb,
.mini-range:active::-webkit-slider-thumb {
    background: var(--accent-sig);
    transform: scale(1.2);
}

.track-btn {
    width: 20px;
    height: 20px;
    border-radius: 4px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--card-border);
    color: var(--text-muted);
    font-size: 0.62rem;
    font-weight: bold;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}

.track-btn:hover {
    background: rgba(255, 255, 255, 0.15);
    color: #fff;
}

.track-btn.del-btn {
    font-size: 0.7rem;
    color: var(--text-muted);
}

.track-btn.del-btn:hover {
    background: rgba(239, 68, 68, 0.2);
    color: #ef4444;
    border-color: rgba(239, 68, 68, 0.4);
}

.track-btn.active {
    background: #fff;
    color: #000;
    border-color: #fff;
}

/* Panoramic Step Pads Timeline Grid */
.step-pads {
    flex: 1;
    min-width: 0;
    display: flex;
    align-items: center;
    gap: 2px;
}

.step-pads.bars-8 {
    gap: 1px;
}

.step-pad {
    flex: 1;
    min-width: 0;
    height: 32px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 3px;
    cursor: pointer;
    transition: background 0.08s ease, transform 0.08s ease;
    position: relative;
    overflow: hidden;
}

.step-pad:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: rgba(255, 255, 255, 0.3);
}

.step-pad.beat-downbeat {
    border-left: 1px solid rgba(255, 255, 255, 0.16);
}

.step-pad.bar-end {
    margin-right: 6px; /* Distinct gap between musical bars */
}

.step-pads.bars-8 .step-pad.bar-end {
    margin-right: 3px;
}

.step-pad.active {
    background: var(--track-color, var(--accent-sig));
    border-color: transparent;
    box-shadow: 0 0 8px var(--track-color, var(--accent-sig-glow));
}

.step-pad.active.ghost {
    background: var(--track-color, var(--accent-sig));
    opacity: 0.42 !important;
    box-shadow: none;
}

.step-pad.current-step {
    border-color: #fff !important;
    box-shadow: 0 0 14px #fff !important;
    transform: scaleY(1.15);
    z-index: 3;
}

.step-pad.active.current-step {
    filter: brightness(1.35);
}

/* History Drawer */
.history-drawer {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: 320px;
    background: #0f1117;
    border-left: 1px solid var(--card-border);
    z-index: 100;
    transform: translateX(100%);
    transition: transform 0.25s cubic-bezier(0.2, 0.8, 0.2, 1);
    display: flex;
    flex-direction: column;
    box-shadow: -10px 0 30px rgba(0, 0, 0, 0.7);
}

.history-drawer.open {
    transform: translateX(0);
}

.drawer-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    z-index: 99;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease;
}

.drawer-backdrop.open {
    opacity: 1;
    pointer-events: auto;
}

.history-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px;
    border-bottom: 1px solid var(--card-border);
}

.history-header h3 {
    font-size: 1rem;
    font-weight: 700;
}

.close-btn {
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-size: 1.2rem;
    cursor: pointer;
}

.close-btn:hover {
    color: #fff;
}

.history-list {
    flex: 1;
    overflow-y: auto;
    padding: 14px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.history-item {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--card-border);
    border-radius: 8px;
    padding: 10px 12px;
    cursor: pointer;
    transition: all 0.15s ease;
}

.history-item:hover, .history-item.active {
    background: rgba(16, 231, 96, 0.08);
    border-color: var(--accent-sig);
}

.history-item-title {
    font-weight: 700;
    font-size: 0.82rem;
    color: #fff;
    margin-bottom: 3px;
}

.history-item-meta {
    font-family: var(--font-mono);
    font-size: 0.68rem;
    color: var(--text-muted);
}

/* Pro Paywall Modal (High-End SaaS Feel) */
.pro-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 200;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease;
}

.pro-modal.open {
    opacity: 1;
    pointer-events: auto;
}

.pro-modal-content {
    background: #111319;
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 16px;
    max-width: 680px;
    width: 100%;
    padding: 26px 30px;
    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.9), 0 0 40px rgba(16, 231, 96, 0.08);
    position: relative;
    max-height: 90vh;
    overflow-y: auto;
    transform: scale(0.96);
    transition: transform 0.2s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.pro-modal.open .pro-modal-content {
    transform: scale(1);
}

.pro-close-btn {
    position: absolute;
    top: 18px;
    right: 18px;
    font-size: 1.2rem;
}

/* 10-Loop Milestone Modal */
.milestone-badge-top {
    display: inline-block;
    background: linear-gradient(135deg, rgba(255, 107, 0, 0.25), rgba(255, 215, 0, 0.25));
    border: 1px solid rgba(255, 165, 0, 0.5);
    color: #ff9d00;
    font-size: 0.72rem;
    font-weight: 800;
    font-family: var(--font-mono);
    padding: 4px 12px;
    border-radius: 20px;
    margin-bottom: 14px;
    letter-spacing: 0.5px;
}

.milestone-perks-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin: 20px 0 24px;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 12px;
    padding: 16px 18px;
}

.perk-row {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.perk-row span {
    font-size: 1.1rem;
    flex-shrink: 0;
}

.perk-row strong {
    color: #fff;
}

.milestone-actions {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.milestone-cta-btn {
    width: 100%;
    padding: 14px;
    font-size: 0.95rem;
    font-weight: 800;
    justify-content: center;
}

.btn-keep-rolling {
    width: 100%;
    padding: 10px;
    font-size: 0.82rem;
    color: var(--text-muted);
    background: transparent;
    border: 1px solid transparent;
    cursor: pointer;
    transition: all 0.15s ease;
}

.btn-keep-rolling:hover {
    color: #fff;
    border-color: rgba(255, 255, 255, 0.15);
}

.pro-header {
    text-align: center;
    margin-bottom: 22px;
}

.pro-crown-badge {
    font-size: 2.2rem;
    margin-bottom: 6px;
    color: var(--accent-sig);
}

.pro-header h2 {
    font-size: 1.5rem;
    font-weight: 800;
    color: #fff;
    margin-bottom: 6px;
}

.pro-subtitle {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.4;
    max-width: 480px;
    margin: 0 auto;
}

.pro-features-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
    margin-bottom: 22px;
    background: rgba(0, 0, 0, 0.35);
    padding: 14px;
    border-radius: 10px;
    border: 1px solid var(--card-border);
}

.pro-feature-item {
    display: flex;
    gap: 10px;
    font-size: 0.82rem;
}

.feat-check {
    color: var(--accent-sig);
    font-weight: bold;
    font-size: 1rem;
    line-height: 1.2;
}

.pro-feature-item strong {
    color: #fff;
    display: block;
    margin-bottom: 2px;
}

.pro-feature-item p {
    color: var(--text-muted);
    font-size: 0.72rem;
    line-height: 1.3;
}

/* Pricing Cards */
.pricing-plans {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    margin-bottom: 22px;
}

.plan-badge.launch-badge {
    background: #ffffff;
    color: #000000;
}

.plan-card {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--card-border);
    border-radius: 10px;
    padding: 14px 10px;
    text-align: center;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    position: relative;
    transition: all 0.15s ease;
}

.plan-card:hover {
    border-color: rgba(255, 255, 255, 0.2);
}

.plan-card.featured {
    background: var(--accent-sig-dim);
    border-color: var(--accent-sig-border);
    box-shadow: 0 0 20px rgba(16, 231, 96, 0.15);
}

.plan-badge {
    position: absolute;
    top: -9px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--accent-sig);
    color: #000;
    font-size: 0.58rem;
    font-weight: 800;
    padding: 1px 7px;
    border-radius: 8px;
    letter-spacing: 0.5px;
    white-space: nowrap;
}

.plan-name {
    font-weight: 700;
    font-size: 0.8rem;
    margin-bottom: 4px;
    color: #fff;
}

.plan-price {
    font-size: 1.5rem;
    font-weight: 800;
    color: #fff;
    margin-bottom: 4px;
    font-family: var(--font-mono);
}

.plan-price span {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.plan-desc {
    font-size: 0.68rem;
    color: var(--text-muted);
    margin-bottom: 12px;
    min-height: 26px;
}

.btn-plan {
    background: rgba(255, 255, 255, 0.08);
    color: #fff;
    border: 1px solid var(--card-border);
    padding: 7px 10px;
    border-radius: 6px;
    font-weight: 700;
    font-size: 0.72rem;
    cursor: pointer;
    width: 100%;
}

.btn-plan:hover {
    background: rgba(255, 255, 255, 0.15);
}

.btn-plan-featured {
    background: var(--accent-sig);
    color: #000;
    border: none;
    padding: 7px 10px;
    border-radius: 6px;
    font-weight: 800;
    font-size: 0.72rem;
    cursor: pointer;
    width: 100%;
    box-shadow: 0 3px 10px var(--accent-sig-glow);
}

.btn-plan-featured:hover {
    background: var(--accent-sig-hover);
}

/* Key Activation Section */
.pro-key-section {
    border-top: 1px solid var(--card-border);
    padding-top: 16px;
    text-align: center;
}

.key-header {
    font-size: 0.78rem;
    color: var(--text-secondary);
    margin-bottom: 8px;
    font-weight: 600;
}

.key-input-row {
    display: flex;
    gap: 8px;
    max-width: 340px;
    margin: 0 auto 8px;
}

#licenseKeyInput {
    flex: 1;
    background: rgba(0, 0, 0, 0.4);
    border: 1px solid var(--card-border);
    border-radius: 6px;
    padding: 7px 10px;
    color: #fff;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    text-transform: uppercase;
    outline: none;
}

#licenseKeyInput:focus {
    border-color: var(--accent-sig);
}

.btn-activate {
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid var(--card-border-focus);
    color: #fff;
    padding: 7px 12px;
    border-radius: 6px;
    font-weight: 700;
    font-size: 0.75rem;
    cursor: pointer;
}

.btn-activate:hover {
    background: var(--accent-sig);
    color: #000;
    border-color: var(--accent-sig);
}

.demo-key-hint {
    font-size: 0.7rem;
    color: var(--text-muted);
}

.demo-key-btn {
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.15);
    color: var(--accent-sig);
    padding: 1px 6px;
    border-radius: 4px;
    font-family: var(--font-mono);
    font-weight: bold;
    cursor: pointer;
}

.demo-key-btn:hover {
    background: var(--accent-sig);
    color: #000;
}

/* Header Auth Pill */
.btn-auth-pill {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--card-border);
    color: #fff;
    padding: 7px 14px;
    border-radius: 20px;
    font-size: 0.78rem;
    font-weight: 600;
    transition: all 0.15s ease;
}

.btn-auth-pill:hover {
    background: rgba(255, 255, 255, 0.12);
    border-color: var(--card-border-focus);
}

.user-avatar-icon {
    font-size: 0.9rem;
}

/* Title & Favorite Row */
.title-row {
    display: flex;
    align-items: center;
    gap: 14px;
}

.btn-fav {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--card-border);
    color: var(--text-muted);
    padding: 6px 12px;
    border-radius: 8px;
    font-size: 0.8rem;
    font-weight: 700;
    transition: all 0.15s ease;
}

.btn-fav:hover {
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
    border-color: rgba(255, 255, 255, 0.2);
}

.btn-fav.saved {
    background: rgba(16, 231, 96, 0.12);
    border-color: var(--accent-sig-border);
    color: var(--accent-sig);
}

.btn-fav.saved #favIcon {
    filter: drop-shadow(0 0 6px var(--accent-sig));
}

/* Drawer Library Tabs */
.drawer-tabs {
    display: flex;
    border-bottom: 1px solid var(--card-border);
    padding: 0 16px;
    background: rgba(0, 0, 0, 0.2);
}

.drawer-tab {
    flex: 1;
    background: transparent;
    border: none;
    border-bottom: 2px solid transparent;
    color: var(--text-muted);
    font-family: var(--font-sans);
    font-size: 0.75rem;
    font-weight: 700;
    padding: 12px 6px;
    cursor: pointer;
    transition: all 0.15s ease;
    text-align: center;
}

.drawer-tab:hover {
    color: #fff;
}

.drawer-tab.active {
    color: var(--accent-sig);
    border-bottom-color: var(--accent-sig);
}

/* Progressive Auth Modal Styles */
.auth-modal-content {
    max-width: 420px;
    text-align: center;
}

.auth-box {
    margin-top: 14px;
}

.btn-google {
    background: #fff;
    color: #1f2937;
    width: 100%;
    padding: 11px 16px;
    border-radius: 8px;
    font-weight: 700;
    font-size: 0.85rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    border: none;
    cursor: pointer;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
    transition: all 0.15s ease;
}

.btn-google:hover {
    background: #f3f4f6;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
}

.auth-divider {
    display: flex;
    align-items: center;
    text-align: center;
    margin: 18px 0;
    color: var(--text-muted);
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.auth-divider::before, .auth-divider::after {
    content: '';
    flex: 1;
    border-bottom: 1px solid var(--card-border);
}

.auth-divider span {
    padding: 0 10px;
}

.auth-email-form {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

#authEmailInput {
    background: rgba(0, 0, 0, 0.5);
    border: 1px solid var(--card-border);
    border-radius: 8px;
    padding: 11px 14px;
    color: #fff;
    font-size: 0.85rem;
    outline: none;
    width: 100%;
}

#authEmailInput:focus {
    border-color: var(--accent-sig);
}

.btn-auth-submit {
    background: var(--accent-sig);
    color: #000;
    font-weight: 800;
    padding: 11px 16px;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    font-size: 0.85rem;
    transition: all 0.15s ease;
}

.btn-auth-submit:hover {
    background: var(--accent-sig-hover);
}

.auth-terms {
    margin-top: 14px;
    font-size: 0.7rem;
    color: var(--text-muted);
}

/* Minimal 1-Line Trust & Legal Footer */
.app-footer {
    margin-top: 40px;
    padding: 20px 0 28px;
    border-top: 1px solid var(--card-border);
    text-align: center;
}

.footer-content {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    flex-wrap: wrap;
    font-size: 0.78rem;
    color: var(--text-muted);
}

.footer-dot {
    color: var(--card-border-focus);
}

.footer-badge-link {
    background: rgba(16, 231, 96, 0.08);
    border: 1px solid var(--accent-sig-border);
    color: var(--accent-sig);
    padding: 3px 10px;
    border-radius: 12px;
    font-weight: 700;
    cursor: pointer;
    font-size: 0.74rem;
    transition: all 0.15s ease;
}

.footer-badge-link:hover {
    background: rgba(16, 231, 96, 0.18);
    transform: translateY(-1px);
}

.footer-link {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    text-decoration: none;
    font-size: 0.78rem;
    transition: color 0.15s ease;
}

.footer-link:hover {
    color: #fff;
    text-decoration: underline;
}

/* Legal / Terms Modal */
.legal-modal-content {
    max-width: 580px;
    max-height: 85vh;
    overflow-y: auto;
    text-align: left;
}

.legal-body {
    margin-top: 18px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.legal-section h4 {
    font-size: 0.88rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 4px;
}

.legal-section p {
    font-size: 0.8rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* Toast */

.toast {
    position: fixed;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background: #141720;
    border: 1px solid var(--accent-sig-border);
    color: #fff;
    padding: 9px 18px;
    border-radius: 20px;
    font-size: 0.82rem;
    font-weight: 600;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.6), 0 0 15px var(--accent-sig-glow);
    z-index: 1000;
    transition: transform 0.25s cubic-bezier(0.2, 0.8, 0.2, 1);
    pointer-events: none;
}

.toast.show {
    transform: translateX(-50%) translateY(0);
}

/* Responsive adjustments */
@media (max-width: 900px) {
    .step-pads {
        gap: 3px;
    }
    .track-info {
        width: 130px;
    }
    .swipe-arrow-btn {
        display: none;
    }
    .app-header {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
        flex-wrap: wrap;
        gap: 12px;
    }
    .header-right {
        gap: 8px;
        flex-wrap: wrap;
        justify-content: flex-end;
    }
    .pricing-plans {
        grid-template-columns: 1fr;
    }
    .pro-features-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 650px) {
    .app-container {
        padding: 12px 14px 28px;
    }
    .loop-card {
        padding: 16px 12px;
        border-radius: 14px;
    }
    .card-header {
        flex-direction: column;
        align-items: stretch;
        gap: 12px;
    }
    .download-actions {
        width: 100%;
        display: grid;
        grid-template-columns: 1fr 1fr 1.2fr;
        gap: 6px;
    }
    .download-actions .btn {
        padding: 8px 6px;
        font-size: 0.72rem;
        justify-content: center;
    }
    .player-controls-row {
        flex-wrap: wrap;
        gap: 12px;
    }
    .center-cta {
        order: 1;
        width: 100%;
    }
    .left-ctrls {
        order: 2;
    }
    .right-ctrls {
        order: 3;
        margin-left: auto;
    }
    .track-info {
        width: 105px;
    }
    .track-name {
        font-size: 0.75rem;
    }
    .step-pad {
        height: 30px;
    }
}