:root {
    --bg-deep: #05080a;
    --card-bg: #0d1216;
    --accent: #10b981;
    --accent-glow: rgba(16, 185, 129, 0.2);
    --text-main: #e2e8f0;
}

body {
    font-family: 'Outfit', sans-serif;
    background-color: var(--bg-deep);
    background-image: radial-gradient(circle at 50% -20%, #11221a 0%, transparent 50%);
    color: var(--text-main);
}

h1, h2, h3, .font-heading {
    font-family: 'Space Grotesk', sans-serif;
}

/* ── Glass Panel ── */
.glass-panel {
    background: var(--card-bg);
    border: 1px solid rgba(255, 255, 255, 0.05);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    border-radius: 24px;
}

/* ── Range Sliders ── */
input[type=range] {
    accent-color: var(--accent);
    cursor: pointer;
    width: 100%;
    height: 6px;
    background: #1e293b;
    border-radius: 5px;
}

/* ── Neon Button ── */
.neon-btn {
    background: var(--accent);
    color: #022c22;
    box-shadow: 0 0 15px var(--accent-glow);
    transition: all 0.3s ease;
}

.neon-btn:hover:not(:disabled) {
    box-shadow: 0 0 25px var(--accent);
    transform: translateY(-2px);
}

/* ── Nav Links ── */
.nav-link {
    transition: all 0.3s ease;
    border: 1px solid rgba(255, 255, 255, 0.05);
    background: rgba(255, 255, 255, 0.02);
}

.nav-link:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: rgba(16, 185, 129, 0.05);
}

/* ── FAQ Cards ── */
.faq-card {
    background: rgba(255, 255, 255, 0.02);
    border-left: 4px solid var(--accent);
    transition: 0.3s;
}

.faq-card:hover {
    background: rgba(255, 255, 255, 0.05);
}

/* ── Knob Labels ── */
.knob-label {
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: #94a3b8;
}

/* ── Drop Zone ── */
.drop-zone {
    transition: all 0.3s ease;
}

.drop-zone.drag-over {
    border-color: var(--accent) !important;
    background: rgba(16, 185, 129, 0.08) !important;
    transform: scale(1.01);
}

/* ── Format Badges ── */
.format-badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 999px;
    font-size: 11px;
    font-weight: 700;
    background: rgba(16, 185, 129, 0.08);
    border: 1px solid rgba(16, 185, 129, 0.2);
    color: #10b981;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

/* ── Error State ── */
#status.error {
    color: #f87171 !important;
}