:root {
    --void: #050508;
    --deep: #0a0a12;
    --panel: #0f0f1a;
    --border: #1a1a2e;
    --accent: #7c3aed;
    --accent2: #06b6d4;
    --accent3: #f59e0b;
    --glow: rgba(124, 58, 237, 0.4);
    --glow2: rgba(6, 182, 212, 0.3);
    --text: #e2e8f0;
    --muted: #64748b;
    --dim: #1e1e32;
    --green: #22c55e;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    background: var(--void);
    color: var(--text);
    font-family: 'Rajdhani', sans-serif;
    min-height: 100vh;
    overflow-x: hidden;
}

/* BG */
.bg-grid {
    position: fixed;
    inset: 0;
    z-index: 0;
    background-image: linear-gradient(rgba(124, 58, 237, 0.04) 1px, transparent 1px), linear-gradient(90deg, rgba(124, 58, 237, 0.04) 1px, transparent 1px);
    background-size: 40px 40px;
    animation: gridDrift 20s linear infinite;
}

@keyframes gridDrift {
    to {
        background-position: 40px 40px;
    }
}

.bg-orb {
    position: fixed;
    border-radius: 50%;
    filter: blur(80px);
    pointer-events: none;
    z-index: 0;
}

.o1 {
    width: 500px;
    height: 500px;
    background: rgba(124, 58, 237, 0.1);
    top: -100px;
    left: -100px;
    animation: of1 12s ease-in-out infinite;
}

.o2 {
    width: 400px;
    height: 400px;
    background: rgba(6, 182, 212, 0.07);
    bottom: -100px;
    right: -100px;
    animation: of2 15s ease-in-out infinite;
}

@keyframes of1 {

    0%,
    100% {
        transform: translate(0, 0)
    }

    50% {
        transform: translate(60px, 40px)
    }
}

@keyframes of2 {

    0%,
    100% {
        transform: translate(0, 0)
    }

    50% {
        transform: translate(-40px, -60px)
    }
}

/* ══ SPLASH SCREEN ══ */
.splash {
    position: fixed;
    inset: 0;
    z-index: 1000;
    background: var(--void);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.6s ease;
}

.splash.gone {
    opacity: 0;
    pointer-events: none;
}

.splash-card {
    max-width: 560px;
    width: 90%;
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 40px;
    position: relative;
    overflow: hidden;
}

.splash-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--accent), var(--accent2), var(--accent3));
}

.splash-logo {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 52px;
    letter-spacing: 0.08em;
    background: linear-gradient(135deg, #fff 20%, var(--accent) 60%, var(--accent2) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
}

.splash-sub {
    font-size: 13px;
    letter-spacing: 0.2em;
    color: var(--muted);
    text-transform: uppercase;
    margin-bottom: 28px;
}

.splash-what {
    font-size: 18px;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 8px;
}

.splash-desc {
    font-size: 15px;
    color: var(--muted);
    line-height: 1.7;
    margin-bottom: 28px;
}

.how-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 14px;
    margin-bottom: 32px;
}

.how-list li {
    display: flex;
    align-items: flex-start;
    gap: 14px;
}

.how-num {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--accent);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
    font-weight: 700;
    flex-shrink: 0;
    margin-top: 1px;
}

.how-text {
    font-size: 15px;
    color: var(--muted);
    line-height: 1.5;
}

.how-text strong {
    color: var(--text);
}

.splash-btn {
    width: 100%;
    padding: 16px;
    background: var(--accent);
    border: none;
    border-radius: 12px;
    color: #fff;
    font-family: 'Bebas Neue', sans-serif;
    font-size: 22px;
    letter-spacing: 0.1em;
    cursor: pointer;
    transition: all 0.25s;
}

.splash-btn:hover {
    background: #6d28d9;
    box-shadow: 0 8px 30px var(--glow);
    transform: translateY(-2px);
}

.splash-note {
    text-align: center;
    margin-top: 12px;
    font-size: 12px;
    color: var(--muted);
    letter-spacing: 0.05em;
}

/* ══ APP ══ */
.app {
    position: relative;
    z-index: 1;
    max-width: 980px;
    margin: 0 auto;
    padding: 32px 20px 60px;
}

/* Header */
.header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 28px;
    flex-wrap: wrap;
    gap: 16px;
}

.logo-block .logo {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 40px;
    letter-spacing: 0.08em;
    background: linear-gradient(135deg, #fff 20%, var(--accent) 60%, var(--accent2) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
}

.logo-block .tagline {
    font-size: 12px;
    letter-spacing: 0.18em;
    color: var(--muted);
    text-transform: uppercase;
}

.help-btn {
    padding: 8px 18px;
    background: transparent;
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--muted);
    font-family: 'Rajdhani', sans-serif;
    font-size: 13px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    gap: 8px;
}

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

/* Big MIC section */
.mic-hero {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 28px;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 28px;
}

.mic-btn-wrap {
    flex-shrink: 0;
    text-align: center;
}

.mic-btn {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    border: 2px solid var(--accent);
    background: transparent;
    cursor: pointer;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    position: relative;
}

.mic-btn::before {
    content: '';
    position: absolute;
    inset: -8px;
    border-radius: 50%;
    border: 1px solid rgba(124, 58, 237, 0.3);
    transition: all 0.3s;
}

.mic-btn:hover {
    box-shadow: 0 0 28px var(--glow);
    border-color: var(--accent2);
}

.mic-btn.active {
    background: var(--accent);
    border-color: var(--accent);
    box-shadow: 0 0 50px var(--glow);
    animation: mpulse 1.5s ease-in-out infinite;
}

.mic-btn.active::before {
    animation: ring 1.5s ease-out infinite;
}

@keyframes mpulse {

    0%,
    100% {
        box-shadow: 0 0 40px var(--glow)
    }

    50% {
        box-shadow: 0 0 70px var(--glow)
    }
}

@keyframes ring {
    0% {
        inset: -8px;
        opacity: 1
    }

    100% {
        inset: -24px;
        opacity: 0
    }
}

.mic-label {
    font-size: 11px;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--muted);
    margin-top: 8px;
}

.mic-label.on {
    color: var(--green);
}

.mic-info {
    flex: 1;
}

.mic-info h2 {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 26px;
    letter-spacing: 0.05em;
    margin-bottom: 6px;
}

.mic-info p {
    font-size: 14px;
    color: var(--muted);
    line-height: 1.6;
    max-width: 480px;
}

.mic-info .steps {
    display: flex;
    gap: 20px;
    margin-top: 14px;
    flex-wrap: wrap;
}

.step-pill {
    display: flex;
    align-items: center;
    gap: 8px;
    background: var(--dim);
    border-radius: 8px;
    padding: 8px 14px;
    font-size: 13px;
    color: var(--muted);
}

.step-pill .n {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--accent);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 11px;
    font-weight: 700;
    color: #fff;
    flex-shrink: 0;
}

/* Visualizer */
.viz-wrap {
    background: var(--deep);
    border: 1px solid var(--border);
    border-radius: 12px;
    overflow: hidden;
    margin-bottom: 20px;
    position: relative;
}

#vizCanvas {
    display: block;
    width: 100%;
    height: 140px;
}

.viz-idle {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    pointer-events: none;
    transition: opacity 0.4s;
}

.viz-idle.hidden {
    opacity: 0;
}

.viz-idle span {
    font-size: 13px;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--muted);
}

/* Pitch strip */
.pitch-strip {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 16px 22px;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 24px;
    flex-wrap: wrap;
}

.pitch-block {
    min-width: 80px;
}

.pitch-title {
    font-size: 10px;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 4px;
}

.pitch-val {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 38px;
    color: var(--accent2);
    line-height: 1;
    filter: drop-shadow(0 0 10px var(--glow2));
}

.pitch-hz {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 22px;
    color: var(--text);
}

.pitch-cents {
    font-size: 12px;
    color: var(--muted);
    margin-top: 2px;
}

.tuner-wrap {
    flex: 1;
    min-width: 180px;
}

.tuner-label {
    font-size: 10px;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 6px;
}

#tunerCanvas {
    display: block;
    width: 100%;
    height: 44px;
    border-radius: 6px;
}

/* FX Toggles */
.fx-section {
    margin-bottom: 20px;
}

.sec-title {
    font-size: 11px;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.sec-title::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--border);
}

.fx-row {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.fx-card {
    flex: 1;
    min-width: 110px;
    background: var(--dim);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 12px 14px;
    cursor: pointer;
    transition: all 0.2s;
    text-align: left;
}

.fx-card:hover {
    border-color: var(--accent);
    transform: translateY(-2px);
}

.fx-card.on {
    border-color: var(--accent2);
    background: rgba(6, 182, 212, 0.08);
}

.fx-card-head {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 4px;
}

.fx-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--border);
    transition: all 0.2s;
    flex-shrink: 0;
}

.fx-card.on .fx-dot {
    background: var(--accent2);
    box-shadow: 0 0 6px var(--accent2);
}

.fx-name {
    font-size: 14px;
    font-weight: 700;
    letter-spacing: 0.05em;
    color: var(--text);
}

.fx-card.on .fx-name {
    color: var(--accent2);
}

.fx-desc {
    font-size: 11px;
    color: var(--muted);
    line-height: 1.4;
}

/* Presets */
.presets-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: 10px;
    margin-bottom: 20px;
}

.preset-btn {
    background: var(--dim);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 12px;
    cursor: pointer;
    text-align: left;
    transition: all 0.2s;
    color: var(--text);
    font-family: 'Rajdhani', sans-serif;
}

.preset-btn:hover {
    border-color: var(--accent);
    transform: translateY(-2px);
}

.preset-btn.active {
    border-color: var(--accent);
    background: rgba(124, 58, 237, 0.12);
    box-shadow: 0 0 16px rgba(124, 58, 237, 0.15);
}

.preset-btn .emoji {
    font-size: 22px;
    display: block;
    margin-bottom: 6px;
}

.preset-btn .pname {
    font-size: 14px;
    font-weight: 700;
    display: block;
}

.preset-btn .pdesc {
    font-size: 11px;
    color: var(--muted);
    display: block;
    margin-top: 2px;
    line-height: 1.3;
}

/* Controls grid */
.controls {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 20px;
}

.ctrl-panel {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 20px;
    position: relative;
    overflow: hidden;
}

.ctrl-panel::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
}

.ctrl-panel.purple::before {
    background: linear-gradient(90deg, transparent, var(--accent), transparent);
}

.ctrl-panel.cyan::before {
    background: linear-gradient(90deg, transparent, var(--accent2), transparent);
}

.ctrl-panel.amber::before {
    background: linear-gradient(90deg, transparent, var(--accent3), transparent);
}

.ctrl-panel.green::before {
    background: linear-gradient(90deg, transparent, var(--green), transparent);
}

.ctrl-title {
    font-size: 10px;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.ctrl-title::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--border);
}

.ctrl-title .icon {
    font-size: 14px;
}

.sl-group {
    margin-bottom: 14px;
}

.sl-group:last-child {
    margin-bottom: 0;
}

.sl-head {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    margin-bottom: 6px;
}

.sl-name {
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.08em;
    color: var(--muted);
}

.sl-val {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 16px;
    color: var(--text);
}

.sl-hint {
    font-size: 10px;
    color: var(--border);
    margin-top: 2px;
    letter-spacing: 0.05em;
}

input[type=range] {
    -webkit-appearance: none;
    width: 100%;
    height: 4px;
    border-radius: 2px;
    background: var(--dim);
    outline: none;
    cursor: pointer;
}

input[type=range].p::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--accent);
    box-shadow: 0 0 8px var(--glow);
    cursor: grab;
}

input[type=range].c::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--accent2);
    box-shadow: 0 0 8px var(--glow2);
    cursor: grab;
}

input[type=range].a::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--accent3);
    box-shadow: 0 0 8px rgba(245, 158, 11, 0.4);
    cursor: grab;
}

input[type=range].g::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--green);
    box-shadow: 0 0 8px rgba(34, 197, 94, 0.4);
    cursor: grab;
}

/* Footer */
.footer {
    text-align: center;
    padding: 20px;
    font-size: 11px;
    letter-spacing: 0.15em;
    color: var(--muted);
    text-transform: uppercase;
}

.footer a {
    color: var(--accent);
    text-decoration: none;
}

/* Tooltip */
[data-tip] {
    position: relative;
    cursor: help;
}

[data-tip]::after {
    content: attr(data-tip);
    position: absolute;
    bottom: calc(100% + 8px);
    left: 50%;
    transform: translateX(-50%);
    background: #1a1a2e;
    color: var(--text);
    font-size: 12px;
    padding: 6px 10px;
    border-radius: 6px;
    white-space: nowrap;
    border: 1px solid var(--border);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s;
    z-index: 100;
    letter-spacing: 0.03em;
    font-weight: 400;
}

[data-tip]:hover::after {
    opacity: 1;
}

/* ABOUT SECTION */
.about-section {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 28px;
    margin-bottom: 20px;
    position: relative;
    overflow: hidden;
}

.about-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--accent), var(--accent2), var(--accent3));
}

.about-grid {
    display: flex;
    gap: 32px;
    align-items: flex-start;
    margin-bottom: 28px;
    flex-wrap: wrap;
}

.about-main {
    flex: 1;
    min-width: 240px;
}

.about-desc {
    font-size: 15px;
    color: var(--muted);
    line-height: 1.75;
    margin-bottom: 18px;
}

.about-desc strong {
    color: var(--text);
}

.about-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.badge {
    background: var(--dim);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 5px 14px;
    font-size: 12px;
    font-weight: 600;
    color: var(--muted);
    letter-spacing: 0.05em;
}

.about-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    flex-shrink: 0;
}

.stat-card {
    background: var(--dim);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 16px;
    text-align: center;
}

.stat-num {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 32px;
    color: var(--accent2);
    line-height: 1;
    filter: drop-shadow(0 0 8px var(--glow2));
}

.stat-label {
    font-size: 11px;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--muted);
    margin-top: 4px;
}

.chain-title {
    font-size: 11px;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 14px;
}

.chain {
    display: flex;
    align-items: center;
    gap: 6px;
    flex-wrap: wrap;
    overflow-x: auto;
    padding-bottom: 4px;
}

.chain-node {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 5px;
    background: var(--dim);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 10px 12px;
    font-size: 18px;
    min-width: 72px;
    flex-shrink: 0;
    transition: border-color 0.2s;
}

.chain-node:hover {
    border-color: var(--accent);
}

.chain-node span {
    font-size: 10px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--muted);
    white-space: nowrap;
}

.chain-arrow {
    color: var(--border);
    font-size: 18px;
    flex-shrink: 0;
}

@media(max-width:640px) {
    .controls {
        grid-template-columns: 1fr;
    }

    .mic-hero {
        flex-direction: column;
        text-align: center;
    }

    .mic-info .steps {
        justify-content: center;
    }

    .pitch-strip {
        flex-direction: column;
        align-items: flex-start;
    }

    .about-stats {
        grid-template-columns: repeat(4, 1fr);
    }

    .chain-node {
        min-width: 60px;
        padding: 8px;
    }
}