:root {
    --bg: #0b0d10;
    --surface: #12161b;
    --surface-2: #171c22;
    --surface-3: #1d232b;
    --border: #2a3038;
    --border-strong: #39414b;
    --text: #edf1f5;
    --muted: #9aa4af;
    --accent: #d4d8de;
    --accent-ink: #0f1318;
    --success: #66bb8a;
    --danger: #ef8c8c;
    --shadow: 0 20px 48px rgba(0, 0, 0, 0.28);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --space-1: 4px;
    --space-2: 8px;
    --space-3: 12px;
    --space-4: 16px;
    --space-5: 24px;
    --space-6: 32px;
}

html {
    scroll-behavior: smooth;
}

body {
    background: var(--bg);
    color: var(--text);
    font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    letter-spacing: -0.01em;
}

.shell-header {
    background: rgba(11, 13, 16, 0.88);
    backdrop-filter: blur(12px);
}

.navbar-brand {
    letter-spacing: -0.03em;
}

.panel {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
}

.inset-panel {
    background: var(--surface-2);
    box-shadow: none;
}

.hero-panel {
    position: relative;
    overflow: hidden;
}

.hero-panel::after {
    content: "";
    position: absolute;
    inset: 0;
    border: 1px solid rgba(255, 255, 255, 0.03);
    border-radius: inherit;
    pointer-events: none;
}

.display-title {
    font-size: clamp(2rem, 3vw, 3.5rem);
    line-height: 1.02;
    font-weight: 650;
    max-width: 12ch;
    letter-spacing: -0.05em;
}

.eyebrow,
.small-label {
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: 0.12em;
    font-size: 0.72rem;
    font-weight: 600;
}

.lead,
.text-secondary,
.form-text,
.form-label,
.form-control::placeholder,
textarea::placeholder {
    color: var(--muted) !important;
}

.meta-pills,
.control-stack {
    display: grid;
    gap: var(--space-3);
}

.chip,
.badge-soft,
.value-pill,
.gamepad-state {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    border: 1px solid var(--border-strong);
    background: rgba(255, 255, 255, 0.02);
    color: var(--text);
    border-radius: 999px;
    padding: 0.5rem 0.8rem;
    font-size: 0.85rem;
}

.badge-soft {
    padding: 0.45rem 0.7rem;
}

.spec-list {
    display: grid;
    gap: var(--space-3);
}

.spec-list > div {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
    padding-bottom: var(--space-2);
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.spec-list > div:last-child {
    border-bottom: 0;
    padding-bottom: 0;
}

.spec-list span,
.mini-stat span,
.preset-metrics span {
    color: var(--muted);
    font-size: 0.82rem;
}

.spec-list.compact {
    gap: var(--space-2);
}

.status-dot {
    width: 10px;
    height: 10px;
    border-radius: 999px;
    display: inline-block;
    margin-top: 4px;
}

.status-live {
    background: var(--success);
    box-shadow: 0 0 0 8px rgba(102, 187, 138, 0.12);
}

.status-idle {
    background: #66707a;
    box-shadow: 0 0 0 8px rgba(102, 112, 122, 0.12);
}

.recliner-stage {
    position: relative;
    background: #101419;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    min-height: 360px;
    overflow: hidden;
}

.grid-fade {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(to right, rgba(255, 255, 255, 0.04) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
    background-size: 36px 36px;
    mask-image: linear-gradient(180deg, rgba(0,0,0,0.65), transparent 95%);
}

.axis-label {
    position: absolute;
    top: 18px;
    color: var(--muted);
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.axis-label-left { left: 18px; }
.axis-label-right { right: 18px; }

.recliner-figure {
    position: absolute;
    left: 50%;
    bottom: 48px;
    width: 320px;
    height: 230px;
    transform: translateX(calc(-50% - (var(--angle) * 0.18px))) translateY(calc(var(--angle) * 0.06px));
}

.recliner-shadow,
.recliner-seat,
.recliner-arm,
.recliner-back,
.recliner-head,
.recliner-leg,
.recliner-base {
    position: absolute;
    background: var(--surface-3);
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.recliner-shadow {
    left: 78px;
    right: 26px;
    bottom: 6px;
    height: 18px;
    border: 0;
    background: rgba(0, 0, 0, 0.32);
    filter: blur(14px);
    border-radius: 999px;
}

.recliner-seat {
    left: 92px;
    bottom: 78px;
    width: 130px;
    height: 52px;
    border-radius: 14px 14px 10px 10px;
}

.recliner-arm {
    left: 120px;
    bottom: 118px;
    width: 82px;
    height: 20px;
    border-radius: 10px;
}

.recliner-back {
    left: 106px;
    bottom: 108px;
    width: 34px;
    height: 116px;
    border-radius: 14px;
    transform-origin: 18px calc(100% - 10px);
    transform: rotate(calc(-92deg + (var(--angle) * 0.5deg)));
}

.recliner-head {
    left: 90px;
    bottom: 188px;
    width: 48px;
    height: 30px;
    border-radius: 14px;
    transform: rotate(calc(-14deg + (var(--angle) * 0.1deg)));
}

.recliner-leg {
    left: 202px;
    bottom: 88px;
    width: 24px;
    height: 96px;
    border-radius: 14px;
    transform-origin: 12px 10px;
    transform: rotate(calc(10deg + (var(--angle) * 0.42deg)));
}

.recliner-base {
    left: 112px;
    bottom: 44px;
    width: 112px;
    height: 14px;
    border-radius: 999px;
}

.angle-indicator {
    position: absolute;
    right: 12px;
    top: 16px;
    display: inline-flex;
    flex-direction: column;
    align-items: flex-end;
    padding: 12px 14px;
    border: 1px solid var(--border-strong);
    border-radius: var(--radius-sm);
    background: rgba(11, 13, 16, 0.74);
}

.angle-indicator span {
    font-size: 1.85rem;
    font-weight: 650;
    line-height: 1;
}

.angle-indicator small {
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: 0.09em;
    margin-top: 4px;
}

.stat-row {
    margin-top: -4px;
}

.mini-stat {
    height: 100%;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 14px;
}

.mini-stat strong {
    display: block;
    margin-top: 6px;
    font-size: 1rem;
}

.control-group {
    padding-bottom: var(--space-3);
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.control-group:last-child {
    padding-bottom: 0;
    border-bottom: 0;
}

.form-range::-webkit-slider-runnable-track {
    background: #242a32;
    height: 4px;
    border-radius: 999px;
}

.form-range::-webkit-slider-thumb {
    margin-top: -6px;
    width: 16px;
    height: 16px;
    background: var(--accent);
    border: 0;
}

.form-range::-moz-range-track {
    background: #242a32;
    height: 4px;
    border-radius: 999px;
}

.form-range::-moz-range-thumb {
    width: 16px;
    height: 16px;
    border: 0;
    background: var(--accent);
}

.form-control,
.form-select,
textarea {
    background: #0f1318 !important;
    border: 1px solid var(--border-strong) !important;
    color: var(--text) !important;
    border-radius: 10px !important;
    padding: 0.75rem 0.9rem !important;
}

.form-control:focus,
.form-select:focus,
textarea:focus,
.btn:focus,
.form-range:focus {
    box-shadow: 0 0 0 0.2rem rgba(212, 216, 222, 0.12) !important;
    border-color: #58616d !important;
}

.btn {
    border-radius: 10px;
    padding: 0.78rem 1rem;
    font-weight: 600;
    letter-spacing: -0.01em;
}

.btn-light {
    background: var(--accent);
    color: var(--accent-ink);
    border-color: var(--accent);
}

.btn-light:hover,
.btn-light:focus {
    background: #e3e7eb;
    border-color: #e3e7eb;
    color: var(--accent-ink);
}

.btn-accent {
    background: #e6eaef;
    color: #11151a;
    border: 1px solid #e6eaef;
}

.btn-accent:hover,
.btn-accent:focus {
    background: #f2f4f6;
    border-color: #f2f4f6;
    color: #11151a;
}

.btn-outline-light {
    border-color: var(--border-strong);
}

.btn-link {
    color: #cdd3db;
}

.btn-link:hover,
.btn-link:focus {
    color: #f0f3f6;
}

.preset-list {
    display: grid;
    gap: var(--space-3);
}

.preset-card,
.empty-state {
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 16px;
    background: rgba(255, 255, 255, 0.02);
}

.preset-card.is-active {
    border-color: #5c6570;
    background: rgba(255, 255, 255, 0.03);
}

.preset-metrics {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.alert-danger {
    background: rgba(239, 140, 140, 0.12);
    color: #ffd9d9;
}

code {
    color: #f4f7fa;
}

.preset-detail-specs > div {
    padding: 12px 0;
}

footer {
    background: rgba(255, 255, 255, 0.01);
}

@media (max-width: 991.98px) {
    .display-title {
        max-width: none;
    }

    .recliner-stage {
        min-height: 320px;
    }

    .recliner-figure {
        width: 280px;
        height: 220px;
    }

    .recliner-seat {
        left: 76px;
        width: 122px;
    }

    .recliner-base {
        left: 92px;
    }
}

@media (max-width: 575.98px) {
    .recliner-stage {
        min-height: 280px;
    }

    .recliner-figure {
        width: 240px;
        height: 200px;
        bottom: 36px;
    }

    .recliner-seat {
        left: 58px;
        bottom: 72px;
        width: 112px;
        height: 46px;
    }

    .recliner-back {
        left: 68px;
        bottom: 98px;
        height: 104px;
    }

    .recliner-head {
        left: 56px;
        bottom: 170px;
    }

    .recliner-leg {
        left: 168px;
        height: 86px;
    }

    .recliner-base {
        left: 76px;
        width: 100px;
    }

    .angle-indicator {
        right: 8px;
        top: 8px;
        padding: 10px 12px;
    }
}