:root {
    color-scheme: dark;
    --bg: #070a12;
    --surface: rgba(17, 24, 39, 0.82);
    --surface-strong: rgba(31, 41, 55, 0.94);
    --line: rgba(148, 163, 184, 0.22);
    --text: #f8fafc;
    --muted: #a7b0c0;
    --accent: #ff4f8b;
    --accent-strong: #ff7a45;
    --accent-cool: #42d7c8;
    --shadow: rgba(0, 0, 0, 0.42);
}

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

html {
    min-height: 100%;
    background: var(--bg);
}

body {
    min-height: 100vh;
    font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    color: var(--text);
    background:
        radial-gradient(circle at 18% 20%, rgba(66, 215, 200, 0.22), transparent 31rem),
        radial-gradient(circle at 82% 18%, rgba(255, 79, 139, 0.2), transparent 29rem),
        linear-gradient(135deg, #070a12 0%, #111827 46%, #1c1020 100%);
}

body::before {
    content: "";
    position: fixed;
    inset: 0;
    pointer-events: none;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
    background-size: 44px 44px;
    mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.85), transparent);
}

.shell {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 32px;
}

.soundboard {
    width: min(100%, 860px);
    display: grid;
    justify-items: center;
    gap: 24px;
    padding: clamp(32px, 7vw, 72px);
    text-align: center;
    background: linear-gradient(145deg, var(--surface), rgba(13, 18, 31, 0.92));
    border: 1px solid var(--line);
    border-radius: 8px;
    box-shadow: 0 28px 90px var(--shadow);
    backdrop-filter: blur(18px);
}

.eyebrow {
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--accent-cool);
}

h1 {
    font-size: clamp(3.4rem, 13vw, 8.6rem);
    line-height: 0.86;
    font-weight: 800;
}

.subtitle {
    max-width: 560px;
    color: var(--muted);
    font-size: clamp(1rem, 2.2vw, 1.2rem);
    line-height: 1.6;
}

.oh-no-button {
    position: relative;
    isolation: isolate;
    width: min(78vw, 360px);
    aspect-ratio: 1;
    display: grid;
    place-items: center;
    gap: 12px;
    margin-top: 18px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    color: white;
    cursor: pointer;
    background:
        radial-gradient(circle at 32% 25%, rgba(255, 255, 255, 0.34), transparent 27%),
        linear-gradient(145deg, var(--accent), var(--accent-strong));
    box-shadow:
        0 24px 60px rgba(255, 79, 139, 0.34),
        inset 0 -18px 34px rgba(83, 15, 37, 0.32),
        inset 0 2px 12px rgba(255, 255, 255, 0.28);
    font: inherit;
    transition: transform 180ms ease, box-shadow 180ms ease, filter 180ms ease;
}

.oh-no-button:hover {
    transform: translateY(-4px) scale(1.015);
    filter: saturate(1.08);
    box-shadow:
        0 30px 74px rgba(255, 79, 139, 0.42),
        inset 0 -18px 34px rgba(83, 15, 37, 0.32),
        inset 0 2px 12px rgba(255, 255, 255, 0.3);
}

.oh-no-button:active,
.oh-no-button.is-playing {
    transform: translateY(2px) scale(0.97);
}

.oh-no-button:focus-visible {
    outline: 3px solid var(--accent-cool);
    outline-offset: 8px;
}

.button-glow {
    position: absolute;
    inset: 10%;
    z-index: -1;
    border-radius: inherit;
    background: rgba(255, 255, 255, 0.15);
    filter: blur(28px);
}

.button-icon {
    width: clamp(60px, 14vw, 96px);
    aspect-ratio: 1;
    display: grid;
    place-items: center;
    border: 3px solid rgba(255, 255, 255, 0.9);
    border-radius: 50%;
    font-size: clamp(2.8rem, 9vw, 5rem);
    font-weight: 800;
    line-height: 1;
}

.button-label {
    font-size: clamp(2.2rem, 8vw, 4rem);
    font-weight: 800;
    line-height: 1;
}

.status {
    min-height: 1.6em;
    padding: 8px 14px;
    border: 1px solid var(--line);
    border-radius: 999px;
    color: var(--muted);
    background: rgba(15, 23, 42, 0.72);
    font-size: 0.95rem;
}

.status.is-active {
    color: var(--text);
    border-color: rgba(66, 215, 200, 0.45);
    background: rgba(20, 184, 166, 0.12);
}

.custom-panel,
.custom-sounds {
    width: min(100%, 680px);
    display: grid;
    gap: 18px;
    margin-top: 12px;
    padding: 22px;
    text-align: left;
    background: rgba(15, 23, 42, 0.72);
    border: 1px solid var(--line);
    border-radius: 8px;
}

.panel-copy {
    display: grid;
    gap: 6px;
}

h2 {
    color: var(--text);
    font-size: clamp(1.25rem, 3vw, 1.65rem);
    line-height: 1.1;
}

.panel-copy p {
    color: var(--muted);
    line-height: 1.55;
}

.sound-form {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr) auto;
    gap: 14px;
    align-items: end;
}

.sound-form label {
    display: grid;
    gap: 8px;
    color: var(--muted);
    font-size: 0.9rem;
    font-weight: 700;
}

.sound-form input {
    width: 100%;
    min-height: 46px;
    border: 1px solid rgba(148, 163, 184, 0.28);
    border-radius: 8px;
    color: var(--text);
    background: rgba(2, 6, 23, 0.64);
    font: inherit;
}

.sound-form input[type="text"] {
    padding: 0 14px;
}

.sound-form input[type="file"] {
    padding: 10px;
}

.sound-form input:focus-visible,
.create-button:focus-visible,
.sound-chip:focus-visible,
.delete-sound:focus-visible {
    outline: 3px solid var(--accent-cool);
    outline-offset: 3px;
}

.create-button {
    min-height: 46px;
    padding: 0 18px;
    border: 0;
    border-radius: 8px;
    color: #071019;
    background: linear-gradient(135deg, var(--accent-cool), #8af0d2);
    cursor: pointer;
    font: inherit;
    font-weight: 800;
    white-space: nowrap;
    transition: transform 160ms ease, filter 160ms ease;
}

.create-button:hover {
    filter: brightness(1.05);
    transform: translateY(-1px);
}

.custom-sounds {
    text-align: center;
}

.sound-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
    gap: 12px;
}

.sound-card {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 8px;
    align-items: stretch;
}

.sound-chip,
.delete-sound {
    border: 1px solid rgba(255, 255, 255, 0.16);
    border-radius: 8px;
    color: var(--text);
    background: var(--surface-strong);
    cursor: pointer;
    font: inherit;
    transition: transform 160ms ease, border-color 160ms ease, background 160ms ease;
}

.sound-chip {
    min-height: 58px;
    padding: 10px 14px;
    overflow-wrap: anywhere;
    font-weight: 800;
}

.sound-chip:hover,
.sound-chip.is-playing {
    border-color: rgba(255, 79, 139, 0.66);
    background: linear-gradient(145deg, rgba(255, 79, 139, 0.24), rgba(31, 41, 55, 0.94));
    transform: translateY(-1px);
}

.delete-sound {
    width: 42px;
    font-size: 1.25rem;
    color: var(--muted);
}

.delete-sound:hover {
    color: var(--text);
    border-color: rgba(255, 122, 69, 0.58);
    background: rgba(255, 122, 69, 0.12);
}

.empty-state {
    color: var(--muted);
    line-height: 1.5;
    padding: 10px;
}

@media (max-width: 560px) {
    .shell {
        padding: 18px;
    }

    .soundboard {
        gap: 20px;
    }

    .sound-form {
        grid-template-columns: 1fr;
    }

    .create-button {
        width: 100%;
    }
}