@import url("https://fonts.googleapis.com/css2?family=Rajdhani:wght@500;600;700&family=Share+Tech+Mono&display=swap");

:root {
    --bg: #0c0b0a;
    --device: #151518;
    --surface: #101012;
    --border: rgba(255, 255, 255, 0.08);

    --c1: linear-gradient(135deg, #ff2050, #c62259);
    /* kick */
    --c2: linear-gradient(135deg, #ffb000, #ff6000);
    /* snare */
    --c3: linear-gradient(135deg, #00c9a7, #00aaff);
    /* c.hat */
    --c4: linear-gradient(135deg, #e0589c, #ff6090);
    /* o.hat */
    --c5: linear-gradient(135deg, #8040ff, #c040ff);
    /* sample a */
    --c6: linear-gradient(135deg, #1eff5a, #01801c);
    /* sample b */

    --text: #e8e8ec;
    --muted: rgba(255, 255, 255, 0.35);

    --radius: 14px;
    --gap: 12px;
}

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

body {
    background: #f98410;
    color: var(--text);
    font-family: "Rajdhani", sans-serif;
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 28px 18px;
}

.app {
    width: min(860px, 100%);
    background: radial-gradient(900px 500px at 10% 0%, #23232a, #121216 55%, #0f0f12);
    border: 1px solid var(--border);
    border-radius: 20px;
    box-shadow: 0 30px 80px black;
    padding: 18px 18px 20px;
    display: grid;
    gap: 16px;
}

header {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 12px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border);
    flex-wrap: wrap;
}

header h1 {
    font-family: "Share Tech Mono", monospace;
    font-size: 0.85rem;
    font-weight: 400;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.7);
}

.sub {
    font-family: "Share Tech Mono", monospace;
    font-size: 0.65rem;
    letter-spacing: 0.06em;
    color: var(--muted);
    margin-top: 4px;
}

.controls {
    display: flex;
    gap: 8px;
}

.btn {
    font-family: "Share Tech Mono", monospace;
    font-size: 0.65rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    padding: 9px 16px;
    border-radius: 999px;
    border: 1px solid var(--border);
    background: rgba(255, 255, 255, 0.06);
    color: rgba(255, 255, 255, 0.85);
    cursor: pointer;
}

.btn:active {
    transform: scale(0.97);
}

.btn.danger {
    background: transparent;
    border-color: rgba(255, 64, 96, 0.45);
    color: #ff4060;
}

.btn.danger:hover {
    background: rgba(255, 40, 80, 0.1);
    border-color: rgba(255, 64, 96, 0.8);
}

main {
    display: grid;
    grid-template-columns: 1fr;
    gap: 14px;
}

/* Pads */
.pads {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--gap);
    width: 100%;
}

.pad {
    aspect-ratio: 1;
    border-radius: var(--radius);
    position: relative;
    overflow: hidden;
    cursor: pointer;
    user-select: none;
}

.pad:active {
    transform: scale(0.97);
}

.pad::before {
    content: "";
    position: absolute;
    inset: 0;
    background: var(--accent);
    opacity: 0.9;
}

.pad::after {
    content: "";
    position: absolute;
    inset: 5px;
    border-radius: calc(var(--radius) - 6px);
    background: #1c1c21;
}

.pad>* {
    position: relative;
    z-index: 2;
}

/* Hit flash */
.pulse {
    position: absolute;
    inset: 5px;
    border-radius: calc(var(--radius) - 6px);
    background: var(--accent);
    opacity: 0;
    transition: opacity 0.06s;
    z-index: 3;
    pointer-events: none;
}

.pad.active .pulse {
    opacity: 0.22;
}

/* Per-pad colors */
.pad[data-pad="1"] {
    --accent: var(--c1);
}

.pad[data-pad="2"] {
    --accent: var(--c2);
}

.pad[data-pad="3"] {
    --accent: var(--c3);
}

.pad[data-pad="4"] {
    --accent: var(--c4);
}

.pad[data-pad="5"] {
    --accent: var(--c5);
}

.pad[data-pad="6"] {
    --accent: var(--c6);
}

.label {
    position: absolute;
    top: 16px;
    left: 16px;
    right: 16px;
    display: grid;
    gap: 6px;
}

.name {
    font-family: "Share Tech Mono", monospace;
    font-size: 0.82rem;
    font-weight: 400;
    letter-spacing: 0.04em;
    color: rgba(255, 255, 255, 0.88);
}

.key,
.meta {
    font-family: "Share Tech Mono", monospace;
    font-size: 0.62rem;
    letter-spacing: 0.08em;
    color: rgba(255, 255, 255, 0.35);
}

.meta {
    letter-spacing: 0.04em;
    opacity: 0.85;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* File upload styles */

.panel {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--gap);
    padding-top: 10px;
    border-top: 1px solid var(--border);
    background: transparent;
    border-radius: 0;
    border: 0;
}

/* stack label + input cleanly */
.row {
    display: grid;
    gap: 8px;
}

.row label {
    font-family: "Share Tech Mono", monospace;
    font-size: 0.6rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--muted);
}

input[type="file"] {
    width: 100%;
    font-family: "Share Tech Mono", monospace;
    font-size: 0.65rem;
    color: var(--muted);
    border: 1px dashed rgba(255, 255, 255, 0.14);
    border-radius: 12px;
    padding: 8px 10px;
    background: rgba(255, 255, 255, 0.04);
    cursor: pointer;
}