:root {
  --bg: #0F0A07;
  --bg-grad: radial-gradient(1200px 600px at 70% -10%, rgba(255,106,26,0.18), transparent 60%),
             radial-gradient(900px 500px at -10% 20%, rgba(255,179,71,0.08), transparent 60%),
             #0F0A07;
  --surface: #1A130D;
  --surface-2: #221912;
  --surface-3: #2B2017;
  --border: #2E2218;
  --border-hi: #3D2D1F;
  --text: #F5EDE6;
  --text-dim: #B8A99B;
  --text-mute: #7A6E63;
  --orange: #FF6A1A;
  --orange-hi: #FF8845;
  --orange-lo: #E5571A;
  --ember: #FFB347;
  --success: #6FCF8B;
  --warning: #FFC247;
  --danger: #FF5C5C;
  --radius: 12px;
  --radius-sm: 8px;
  --radius-lg: 18px;
  --shadow: 0 1px 0 rgba(255,255,255,0.04) inset, 0 8px 32px rgba(0,0,0,0.35);
  --shadow-orange: 0 0 0 1px rgba(255,106,26,0.4), 0 8px 28px rgba(255,106,26,0.18);
  --font: -apple-system, BlinkMacSystemFont, "Inter", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
}

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

body {
  background: var(--bg-grad);
  color: var(--text);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.55;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a { color: var(--orange-hi); text-decoration: none; }
a:hover { color: var(--ember); }

h1, h2, h3, h4 { margin: 0 0 .4em; line-height: 1.15; letter-spacing: -0.01em; }
h1 { font-size: clamp(2rem, 5vw, 3.4rem); font-weight: 700; }
h2 { font-size: clamp(1.5rem, 3.2vw, 2.1rem); font-weight: 700; }
h3 { font-size: 1.15rem; font-weight: 600; }

p { margin: 0 0 1em; color: var(--text-dim); }

.container { max-width: 1180px; margin: 0 auto; padding: 0 24px; }
.container-narrow { max-width: 820px; margin: 0 auto; padding: 0 24px; }

/* ───── Top notice strip ───── */
.notice {
  background: linear-gradient(90deg, rgba(255,106,26,0.18), rgba(255,136,69,0.08));
  border-bottom: 1px solid var(--border);
  font-size: 13px;
  color: var(--text-dim);
  text-align: center;
  padding: 8px 16px;
}
.notice a { color: var(--ember); text-decoration: underline; }

/* ───── Header / Nav ───── */
.site-header {
  position: sticky; top: 0; z-index: 30;
  backdrop-filter: blur(14px);
  background: rgba(15,10,7,0.72);
  border-bottom: 1px solid var(--border);
}
.nav {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 24px;
  max-width: 1280px; margin: 0 auto;
}
.brand { display: flex; align-items: center; gap: 10px; color: var(--text); font-weight: 700; letter-spacing: -0.01em; font-size: 18px; }
.brand-mark {
  width: 28px; height: 28px; border-radius: 8px;
  background: linear-gradient(135deg, var(--orange), var(--ember));
  display: grid; place-items: center; color: #1a0e05; font-weight: 800;
  box-shadow: 0 6px 18px rgba(255,106,26,0.35);
}
.nav-links { display: flex; gap: 4px; align-items: center; }
.nav-links a {
  color: var(--text-dim); padding: 8px 14px; border-radius: 8px;
  font-size: 14px; font-weight: 500;
}
.nav-links a:hover { color: var(--text); background: rgba(255,255,255,0.04); }
.nav-links a.active { color: var(--text); background: rgba(255,106,26,0.10); }

@media (max-width: 720px) {
  .nav-links a { padding: 6px 8px; font-size: 13px; }
  .nav-links a.hide-sm { display: none; }
}

/* ───── Buttons ───── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 11px 18px; border-radius: var(--radius-sm); font-weight: 600; font-size: 14px;
  cursor: pointer; border: 1px solid transparent;
  transition: transform .04s ease, background .12s ease, border-color .12s ease, color .12s ease;
  text-decoration: none;
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }
.btn-primary {
  background: linear-gradient(180deg, var(--orange-hi), var(--orange));
  color: #1a0e05; border-color: var(--orange);
  box-shadow: 0 6px 18px rgba(255,106,26,0.32);
}
.btn-primary:hover { background: linear-gradient(180deg, var(--orange), var(--orange-lo)); color: #1a0e05; }
.btn-ghost { background: transparent; color: var(--text); border-color: var(--border-hi); }
.btn-ghost:hover { background: var(--surface); border-color: var(--orange); color: var(--text); }
.btn-soft { background: rgba(255,106,26,0.12); color: var(--ember); border-color: rgba(255,106,26,0.25); }
.btn-soft:hover { background: rgba(255,106,26,0.18); color: var(--ember); }
.btn-danger { background: transparent; color: var(--danger); border-color: rgba(255,92,92,0.3); }
.btn-danger:hover { background: rgba(255,92,92,0.08); }
.btn-lg { padding: 14px 22px; font-size: 15px; }
.btn-sm { padding: 7px 12px; font-size: 13px; }
.btn-block { width: 100%; }
.btn[disabled] { opacity: .5; cursor: not-allowed; }

/* ───── Hero ───── */
.hero { padding: 80px 0 60px; text-align: center; position: relative; }
.hero .eyebrow {
  display: inline-block; padding: 6px 12px; border-radius: 999px;
  background: rgba(255,106,26,0.12); color: var(--ember); border: 1px solid rgba(255,106,26,0.25);
  font-size: 12px; font-weight: 600; letter-spacing: 0.04em; text-transform: uppercase;
  margin-bottom: 22px;
}
.hero h1 { background: linear-gradient(180deg, #fff, #d6c4b3); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.hero p.lead { font-size: clamp(1rem, 1.6vw, 1.18rem); max-width: 640px; margin: 0 auto 32px; color: var(--text-dim); }
.hero .ctas { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

/* ───── Stat strip ───── */
.stats {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px;
  background: var(--border); border: 1px solid var(--border); border-radius: var(--radius);
  overflow: hidden; margin: 48px auto;
}
.stats > div { background: var(--surface); padding: 22px; text-align: center; }
.stats .num { font-size: 28px; font-weight: 800; color: var(--ember); }
.stats .lbl { font-size: 12px; color: var(--text-mute); text-transform: uppercase; letter-spacing: 0.08em; }
@media (max-width: 600px) { .stats { grid-template-columns: 1fr; } }

/* ───── Feature grid ───── */
.section { padding: 64px 0; }
.section-head { text-align: center; max-width: 720px; margin: 0 auto 40px; }
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
@media (max-width: 880px) { .feature-grid { grid-template-columns: 1fr; } }
.feature-card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: 24px; transition: transform .15s ease, border-color .15s ease;
}
.feature-card:hover { transform: translateY(-2px); border-color: var(--border-hi); }
.feature-icon {
  width: 38px; height: 38px; border-radius: 10px; display: grid; place-items: center;
  background: rgba(255,106,26,0.12); color: var(--orange-hi); margin-bottom: 14px;
}

/* ───── Cards / panels ───── */
.card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 20px;
}
.panel { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 22px; }

/* ───── Forms ───── */
label { display: block; font-size: 13px; color: var(--text-dim); margin-bottom: 6px; font-weight: 500; }
.input, .select, .textarea {
  width: 100%; padding: 10px 12px; border-radius: var(--radius-sm);
  background: var(--surface-2); color: var(--text);
  border: 1px solid var(--border-hi);
  font-family: inherit; font-size: 14px;
  transition: border-color .12s ease, background .12s ease;
}
.input:focus, .select:focus, .textarea:focus {
  outline: none; border-color: var(--orange); background: var(--surface-3);
}
.textarea { resize: vertical; min-height: 80px; }
.field { margin-bottom: 14px; }
.help { font-size: 12px; color: var(--text-mute); margin-top: 4px; }
.row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
@media (max-width: 600px) { .row { grid-template-columns: 1fr; } }

/* ───── Pricing ───── */
.plans { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; max-width: 880px; margin: 0 auto; }
@media (max-width: 720px) { .plans { grid-template-columns: 1fr; } }
.plan {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: 28px; position: relative;
}
.plan.featured { border-color: var(--orange); box-shadow: var(--shadow-orange); }
.plan .badge {
  position: absolute; top: -12px; left: 22px;
  background: var(--orange); color: #1a0e05; font-size: 11px; font-weight: 700;
  padding: 4px 10px; border-radius: 999px; letter-spacing: 0.04em; text-transform: uppercase;
}
.plan h3 { font-size: 18px; margin-bottom: 4px; }
.plan .price { font-size: 38px; font-weight: 800; margin: 8px 0 4px; }
.plan .price .per { font-size: 14px; color: var(--text-mute); font-weight: 500; }
.plan ul { list-style: none; padding: 0; margin: 18px 0 22px; }
.plan li { padding: 8px 0; color: var(--text-dim); border-bottom: 1px dashed var(--border); display: flex; gap: 10px; align-items: flex-start; }
.plan li:last-child { border-bottom: none; }
.plan li::before { content: "✓"; color: var(--orange); font-weight: 700; }

/* ───── App workspace ───── */
.workspace {
  display: grid; grid-template-columns: 380px 1fr; gap: 18px;
  padding: 24px; max-width: 1280px; margin: 0 auto;
}
@media (max-width: 980px) { .workspace { grid-template-columns: 1fr; } }

.section-title {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 14px;
}
.section-title h3 { margin: 0; font-size: 13px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--text-mute); }

/* Knob display */
.knobs { display: grid; grid-template-columns: repeat(auto-fill, minmax(96px, 1fr)); gap: 14px; margin: 18px 0; }
.knob { text-align: center; }
.knob-dial {
  width: 78px; height: 78px; margin: 0 auto;
  border-radius: 50%;
  background: radial-gradient(circle at 50% 30%, #2d2118, #15100b);
  border: 1px solid var(--border-hi);
  position: relative;
  box-shadow: 0 6px 18px rgba(0,0,0,0.4), 0 0 0 4px #0f0a07;
}
.knob-indicator {
  position: absolute; left: 50%; top: 8px;
  width: 3px; height: 22px;
  background: linear-gradient(180deg, var(--ember), var(--orange));
  border-radius: 2px;
  transform-origin: 50% 30px;
  transform: translateX(-50%) rotate(0deg);
  box-shadow: 0 0 8px rgba(255,106,26,0.6);
}
.knob-label { font-size: 11px; color: var(--text-mute); text-transform: uppercase; letter-spacing: 0.08em; margin-top: 8px; }
.knob-value { font-size: 18px; font-weight: 700; color: var(--ember); margin-top: 4px; font-variant-numeric: tabular-nums; }

/* Result block */
.result { display: none; }
.result.show { display: block; animation: fadein .25s ease; }
@keyframes fadein { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; transform: none; } }

.confidence {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 12px; border-radius: 999px; font-size: 12px; font-weight: 600;
}
.confidence.high { background: rgba(111,207,139,0.12); color: var(--success); border: 1px solid rgba(111,207,139,0.25); }
.confidence.med { background: rgba(255,194,71,0.12); color: var(--warning); border: 1px solid rgba(255,194,71,0.25); }
.confidence.low { background: rgba(255,92,92,0.12); color: var(--danger); border: 1px solid rgba(255,92,92,0.25); }

.tip-list { list-style: none; padding: 0; margin: 0; }
.tip-list li {
  padding: 12px 14px; background: var(--surface-2); border: 1px solid var(--border);
  border-radius: var(--radius-sm); margin-bottom: 8px; font-size: 14px; color: var(--text);
  display: flex; gap: 10px; align-items: flex-start;
}
.tip-list li::before { content: "→"; color: var(--orange); font-weight: 700; }

/* Saved tones */
.saved-list { display: grid; gap: 8px; }
.saved-item {
  background: var(--surface-2); border: 1px solid var(--border); border-radius: var(--radius-sm);
  padding: 10px 14px; display: flex; align-items: center; justify-content: space-between; gap: 8px;
}
.saved-item .meta { font-size: 12px; color: var(--text-mute); }
.saved-item-title { font-weight: 600; font-size: 14px; }
.icon-btn {
  background: transparent; border: 1px solid var(--border-hi); color: var(--text-dim);
  width: 30px; height: 30px; border-radius: 6px; cursor: pointer; display: grid; place-items: center;
}
.icon-btn:hover { color: var(--orange); border-color: var(--orange); }

/* Tabs */
.tabs { display: flex; border-bottom: 1px solid var(--border); margin-bottom: 16px; gap: 4px; }
.tab {
  padding: 10px 14px; cursor: pointer; font-size: 13px; font-weight: 600;
  color: var(--text-dim); border-bottom: 2px solid transparent; user-select: none;
  background: transparent; border-left: none; border-right: none; border-top: none;
}
.tab:hover { color: var(--text); }
.tab.active { color: var(--orange); border-bottom-color: var(--orange); }
.tab-panel { display: none; }
.tab-panel.active { display: block; }

/* Status indicators */
.status-dot { display: inline-block; width: 10px; height: 10px; border-radius: 50%; margin-right: 8px; }
.status-dot.ok { background: var(--success); box-shadow: 0 0 8px rgba(111,207,139,0.6); }
.status-dot.warn { background: var(--warning); box-shadow: 0 0 8px rgba(255,194,71,0.6); }
.status-dot.bad { background: var(--danger); box-shadow: 0 0 8px rgba(255,92,92,0.6); }

.status-row {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px; border: 1px solid var(--border); border-radius: var(--radius-sm);
  background: var(--surface-2); margin-bottom: 8px;
}

/* Reviews */
.review {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 16px; margin-bottom: 10px;
}
.review-head { display: flex; align-items: center; gap: 10px; margin-bottom: 6px; font-size: 13px; }
.review-head .author { font-weight: 600; color: var(--text); }
.review-head .date { color: var(--text-mute); font-size: 12px; }
.stars { color: var(--ember); letter-spacing: 2px; }

.empty {
  text-align: center; padding: 40px 20px; color: var(--text-mute);
  border: 1px dashed var(--border-hi); border-radius: var(--radius); background: rgba(255,255,255,0.01);
}

/* Footer */
.footer {
  border-top: 1px solid var(--border); padding: 40px 24px;
  margin-top: 80px;
}
.footer-grid { max-width: 1180px; margin: 0 auto; display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 28px; }
@media (max-width: 720px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
.footer h4 { font-size: 12px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--text-mute); margin-bottom: 12px; }
.footer ul { list-style: none; padding: 0; margin: 0; }
.footer li { margin-bottom: 8px; }
.footer a { color: var(--text-dim); font-size: 14px; }
.footer a:hover { color: var(--orange); }
.footer-bottom {
  border-top: 1px solid var(--border); margin-top: 32px; padding-top: 20px;
  display: flex; justify-content: space-between; align-items: center; font-size: 13px; color: var(--text-mute);
  max-width: 1180px; margin-left: auto; margin-right: auto; flex-wrap: wrap; gap: 10px;
}

/* Toast */
.toast {
  position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%) translateY(20px);
  background: var(--surface-3); border: 1px solid var(--orange); color: var(--text);
  padding: 12px 18px; border-radius: var(--radius-sm); box-shadow: var(--shadow-orange);
  opacity: 0; pointer-events: none; transition: all .2s ease; z-index: 100;
  font-size: 14px;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* Modal */
.modal-bg {
  position: fixed; inset: 0; background: rgba(0,0,0,0.7); z-index: 50;
  display: none; align-items: center; justify-content: center; padding: 20px;
  backdrop-filter: blur(4px);
}
.modal-bg.show { display: flex; }
.modal {
  background: var(--surface); border: 1px solid var(--border-hi); border-radius: var(--radius-lg);
  padding: 28px; max-width: 520px; width: 100%; box-shadow: var(--shadow);
}

/* Misc */
.muted { color: var(--text-mute); }
.dim { color: var(--text-dim); }
.center { text-align: center; }
.hr { height: 1px; background: var(--border); margin: 18px 0; border: none; }
.kbd { font-family: var(--mono); font-size: 12px; padding: 2px 6px; background: var(--surface-2); border: 1px solid var(--border); border-radius: 4px; }
.legal { max-width: 760px; margin: 0 auto; padding: 40px 24px; color: var(--text-dim); font-size: 15px; line-height: 1.7; }
.legal h2 { color: var(--text); margin-top: 32px; }
.legal h3 { color: var(--text); margin-top: 20px; }

.usage-bar {
  height: 6px; background: var(--surface-2); border-radius: 999px; overflow: hidden; margin: 6px 0 4px;
}
.usage-bar-fill { height: 100%; background: linear-gradient(90deg, var(--orange-hi), var(--orange)); transition: width .3s ease; }

.tag {
  display: inline-block; padding: 3px 8px; border-radius: 999px;
  font-size: 11px; font-weight: 600; letter-spacing: 0.04em;
  background: rgba(255,106,26,0.12); color: var(--ember); border: 1px solid rgba(255,106,26,0.2);
}

/* ───── Wizard ────────────────────────────────────────────────────────── */
.wizard {
  max-width: 980px; margin: 0 auto; padding: 28px 24px 60px;
}
.mode-toggle {
  display: inline-flex; padding: 4px; border-radius: 999px;
  background: var(--surface-2); border: 1px solid var(--border-hi);
  margin-bottom: 22px;
}
.mode-toggle button {
  background: transparent; border: none; color: var(--text-dim);
  padding: 8px 22px; border-radius: 999px; cursor: pointer;
  font-size: 14px; font-weight: 600; transition: all .15s ease;
}
.mode-toggle button.active {
  background: linear-gradient(180deg, var(--orange-hi), var(--orange));
  color: #1a0e05;
}

.stepper {
  display: flex; align-items: center; gap: 0;
  margin: 0 0 28px; max-width: 720px;
}
.step {
  display: flex; align-items: center; gap: 10px; flex: 1;
  cursor: pointer; user-select: none;
}
.step-num {
  width: 32px; height: 32px; border-radius: 50%;
  background: var(--surface-2); border: 1px solid var(--border-hi);
  display: grid; place-items: center; font-weight: 700; font-size: 14px;
  color: var(--text-mute); flex-shrink: 0;
  transition: all .2s ease;
}
.step-label {
  font-size: 13px; color: var(--text-mute); font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.06em;
}
.step.active .step-num {
  background: linear-gradient(180deg, var(--orange-hi), var(--orange));
  color: #1a0e05; border-color: var(--orange);
  box-shadow: 0 0 0 4px rgba(255,106,26,0.18);
}
.step.active .step-label { color: var(--text); }
.step.done .step-num { background: var(--orange-lo); color: #1a0e05; border-color: var(--orange-lo); }
.step.done .step-label { color: var(--text-dim); }
.step-line {
  flex: 1; height: 2px; background: var(--border); margin: 0 12px;
}
.step.done + .step-line { background: var(--orange-lo); }
@media (max-width: 600px) { .step-label { display: none; } }

.step-panel { display: none; animation: fadein .2s ease; }
.step-panel.active { display: block; }

.step-actions {
  display: flex; gap: 10px; justify-content: space-between;
  margin-top: 24px; padding-top: 18px; border-top: 1px solid var(--border);
}
.step-actions-right { display: flex; gap: 10px; }

/* Pedals chips */
.pedal-chips {
  display: flex; flex-wrap: wrap; gap: 6px;
  max-height: 220px; overflow-y: auto; padding: 4px;
}
.pedal-chip {
  padding: 6px 12px; border-radius: 999px; cursor: pointer; user-select: none;
  background: var(--surface-2); border: 1px solid var(--border-hi);
  font-size: 12px; font-weight: 600; color: var(--text-dim);
  transition: all .12s ease;
}
.pedal-chip:hover { color: var(--text); border-color: var(--orange); }
.pedal-chip.selected {
  background: rgba(255,106,26,0.16); color: var(--ember);
  border-color: var(--orange);
}
.pedal-cat {
  font-size: 11px; color: var(--text-mute); text-transform: uppercase;
  letter-spacing: 0.06em; margin: 12px 0 6px; font-weight: 600;
}

/* Radio group */
.radio-group { display: flex; flex-wrap: wrap; gap: 6px; }
.radio-group input { position: absolute; opacity: 0; pointer-events: none; }
.radio-group label {
  padding: 8px 14px; border-radius: var(--radius-sm); cursor: pointer;
  background: var(--surface-2); border: 1px solid var(--border-hi);
  font-size: 13px; font-weight: 500; color: var(--text-dim); user-select: none;
  margin: 0; transition: all .12s ease;
}
.radio-group label:hover { color: var(--text); border-color: var(--orange-lo); }
.radio-group input:checked + label {
  background: rgba(255,106,26,0.16); color: var(--ember);
  border-color: var(--orange);
}

/* Trending list */
.trending-list { display: grid; gap: 6px; }
.trending-item {
  display: flex; align-items: center; gap: 12px;
  padding: 10px 14px; background: var(--surface-2); border: 1px solid var(--border);
  border-radius: var(--radius-sm); cursor: pointer; transition: all .12s ease;
}
.trending-item:hover { border-color: var(--orange); }
.trending-rank {
  width: 22px; height: 22px; border-radius: 50%; display: grid; place-items: center;
  background: var(--surface-3); color: var(--ember); font-size: 12px; font-weight: 700;
  flex-shrink: 0;
}
.trending-meta { font-size: 12px; color: var(--text-mute); margin-left: auto; }

/* Original tone panel */
.original-tone {
  background: var(--surface-2); border: 1px solid var(--border);
  border-radius: var(--radius-sm); padding: 14px; margin: 14px 0;
}
.original-tone-head {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 10px;
}
.original-tone-head h4 {
  margin: 0; font-size: 12px; text-transform: uppercase; letter-spacing: 0.08em;
  color: var(--text-mute);
}
.original-tone-knobs {
  display: flex; flex-wrap: wrap; gap: 14px; font-size: 13px; color: var(--text-dim);
}
.original-tone-knobs strong { color: var(--ember); font-variant-numeric: tabular-nums; }

/* External links row */
.ext-links {
  display: flex; gap: 10px; flex-wrap: wrap; margin-top: 14px;
}
.ext-link {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 8px 14px; border-radius: var(--radius-sm);
  background: var(--surface-2); border: 1px solid var(--border-hi);
  color: var(--text-dim); font-size: 13px; font-weight: 600;
  text-decoration: none; transition: all .12s ease;
}
.ext-link:hover { color: var(--ember); border-color: var(--orange); }