:root {
    color-scheme: dark;
    --bg: #090c12;
    --panel: #121722;
    --panel-soft: #0d131d;
    --ink: #ffd990;
    --accent: #ffb547;
    --accent-2: #ff6f6f;
    --text: #f2f4ff;
    --muted: #9aa7c4;
    --grid: rgba(255, 217, 144, 0.22);
    --flap: #1b2130;
    --flap-edge: #2c3449;
    --flap-light: #293246;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: "IBM Plex Mono", "Segoe UI", "Helvetica Neue", Arial, monospace;
    background: radial-gradient(circle at top, #1e2535, #090c12 60%);
    color: var(--text);
}

.shell {
    max-width: 1200px;
    margin: 0 auto;
    padding: 32px 24px 48px;
}

.hero {
    margin-bottom: 24px;
}

.back {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--muted);
    text-decoration: none;
    font-size: 0.95rem;
    margin-bottom: 12px;
}

.back:hover {
    color: var(--text);
}

.badge {
    display: inline-block;
    padding: 6px 12px;
    border: 1px solid rgba(255, 217, 144, 0.35);
    color: var(--ink);
    text-transform: uppercase;
    letter-spacing: 0.12em;
    font-size: 0.7rem;
    margin-bottom: 12px;
}

.hero h1 {
    font-size: 2.4rem;
    margin: 0 0 8px;
}

.subtitle {
    color: var(--muted);
    margin: 0;
}

.workbench {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 24px;
}

.panel {
    background: linear-gradient(160deg, rgba(22, 28, 41, 0.96), rgba(9, 13, 20, 0.96));
    border: 1px solid rgba(255, 217, 144, 0.15);
    border-radius: 18px;
    padding: 20px;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.35);
}

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

.panel-header h2 {
    margin: 0;
    font-size: 1.1rem;
}

.meter {
    color: var(--muted);
    font-size: 0.85rem;
}

.board {
    --cols: 22;
    display: grid;
    grid-template-columns: repeat(var(--cols), minmax(16px, 1fr));
    gap: 6px;
    padding: 16px;
    border-radius: 14px;
    background: rgba(8, 10, 14, 0.8);
    border: 1px solid rgba(255, 217, 144, 0.2);
    min-height: 220px;
    align-content: center;
}

.flap {
    position: relative;
    height: 32px;
    border-radius: 6px;
    display: grid;
    place-items: center;
    font-size: 0.95rem;
    color: var(--ink);
    background: linear-gradient(180deg, var(--flap-light), var(--flap));
    border: 1px solid var(--flap-edge);
    text-shadow: 0 0 12px rgba(255, 201, 112, 0.4);
    letter-spacing: 0.08em;
    font-variant-ligatures: none;
    transition: transform 120ms ease;
}

.flap::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    top: 50%;
    height: 1px;
    background: rgba(255, 255, 255, 0.12);
}

.flap.flip {
    animation: flip 160ms ease;
}

@keyframes flip {
    0% {
        transform: rotateX(0deg);
        filter: brightness(1);
    }
    50% {
        transform: rotateX(25deg);
        filter: brightness(1.2);
    }
    100% {
        transform: rotateX(0deg);
        filter: brightness(1);
    }
}

.board-foot {
    margin-top: 12px;
    color: var(--muted);
    font-size: 0.9rem;
}

.console {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.field {
    display: flex;
    flex-direction: column;
    gap: 6px;
    font-size: 0.85rem;
    color: var(--muted);
}

.field input {
    background: var(--panel-soft);
    border: 1px solid rgba(255, 217, 144, 0.2);
    border-radius: 10px;
    padding: 10px 12px;
    font-size: 0.95rem;
    color: var(--text);
    text-transform: uppercase;
}

.controls {
    display: grid;
    gap: 12px;
}

.control-row {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.btn {
    border: none;
    background: var(--accent);
    color: #1b1405;
    padding: 10px 16px;
    border-radius: 999px;
    font-weight: 600;
    cursor: pointer;
    letter-spacing: 0.02em;
}

.btn.ghost,
.chip.ghost {
    background: transparent;
    border: 1px solid rgba(255, 217, 144, 0.4);
    color: var(--text);
}

.chip {
    border: none;
    background: rgba(255, 217, 144, 0.2);
    color: var(--text);
    padding: 8px 14px;
    border-radius: 999px;
    cursor: pointer;
    font-size: 0.85rem;
}

.slider {
    display: grid;
    gap: 8px;
}

.slider-label {
    display: flex;
    align-items: center;
    justify-content: space-between;
    color: var(--muted);
    font-size: 0.85rem;
}

.slider input {
    width: 100%;
}

.presets {
    display: grid;
    gap: 10px;
}

.preset-title {
    margin: 0;
    font-size: 0.9rem;
    color: var(--muted);
}

.preset-grid {
    display: grid;
    gap: 10px;
}

.tips {
    background: rgba(8, 11, 18, 0.6);
    border-radius: 14px;
    padding: 12px 14px;
    color: var(--muted);
    font-size: 0.88rem;
}

.tips ul {
    margin: 8px 0 0 18px;
    padding: 0;
}

.footer {
    text-align: center;
    color: var(--muted);
    margin-top: 32px;
    font-size: 0.9rem;
}

@media (max-width: 700px) {
    .board {
        grid-template-columns: repeat(var(--cols), minmax(12px, 1fr));
        gap: 4px;
        padding: 12px;
    }

    .flap {
        height: 28px;
        font-size: 0.8rem;
    }
}