:root {
  color-scheme: dark;
  --bg: #080912;
  --bg-soft: #101221;
  --panel: rgba(255, 255, 255, 0.08);
  --panel-strong: rgba(255, 255, 255, 0.12);
  --line: rgba(255, 255, 255, 0.14);
  --text: #f8fbff;
  --muted: #aeb7c7;
  --green: #35f58b;
  --cyan: #48d7ff;
  --violet: #8b5cf6;
  --pink: #ff4fd8;
  --shadow: 0 28px 90px rgba(0, 0, 0, 0.38);
}

:root[data-theme="light"] {
  color-scheme: light;
  --bg: #f6f8ff;
  --bg-soft: #ffffff;
  --panel: rgba(255, 255, 255, 0.78);
  --panel-strong: rgba(255, 255, 255, 0.92);
  --line: rgba(24, 31, 48, 0.13);
  --text: #101525;
  --muted: #667085;
  --shadow: 0 24px 70px rgba(55, 65, 95, 0.14);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at top left, rgba(53, 245, 139, 0.18), transparent 34rem),
    radial-gradient(circle at top right, rgba(139, 92, 246, 0.22), transparent 36rem),
    var(--bg);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
}
button, input { font: inherit; }
button { cursor: pointer; }
a { color: inherit; }

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  min-height: 72px;
  padding: 0 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  backdrop-filter: blur(18px);
  background: rgba(8, 9, 18, 0.76);
  border-bottom: 1px solid var(--line);
}
:root[data-theme="light"] .topbar { background: rgba(246, 248, 255, 0.76); }
.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  border: 0;
  background: transparent;
  color: var(--text);
  font-weight: 900;
  font-size: 1.08rem;
  letter-spacing: -0.03em;
}
.brand-mark {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--green), var(--cyan));
  color: #06110b;
  box-shadow: 0 14px 30px rgba(53, 245, 139, 0.22);
}
.top-links {
  display: flex;
  align-items: center;
  gap: 0.55rem;
}
.top-links button,
.footer button {
  border: 1px solid var(--line);
  color: var(--text);
  background: var(--panel);
  padding: 0.65rem 0.9rem;
  border-radius: 999px;
  backdrop-filter: blur(14px);
}
.top-links button:hover,
.footer button:hover { border-color: rgba(53, 245, 139, 0.6); }

.hero-shell {
  position: relative;
  overflow: hidden;
  padding: 5rem 1rem 3rem;
}
.aurora {
  position: absolute;
  width: 24rem;
  height: 24rem;
  border-radius: 999px;
  filter: blur(60px);
  opacity: 0.38;
  pointer-events: none;
}
.aurora-one { top: 3rem; left: -8rem; background: var(--green); }
.aurora-two { right: -7rem; bottom: 0; background: var(--violet); }
.hero-grid {
  position: relative;
  max-width: 1180px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(280px, 0.75fr);
  gap: 1.4rem;
  align-items: stretch;
}
.hero-copy,
.tool-switcher,
.panel,
.steps article,
.feature-grid article,
.prose-card,
.faq-stack details {
  background: linear-gradient(180deg, var(--panel-strong), var(--panel));
  border: 1px solid var(--line);
  border-radius: 30px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(22px);
}
.hero-copy { padding: clamp(1.2rem, 4vw, 3rem); }
.eyebrow {
  margin: 0 0 0.8rem;
  color: var(--green);
  text-transform: uppercase;
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.16em;
}
.center { text-align: center; }
h1, h2, h3 { letter-spacing: -0.045em; line-height: 1.08; }
h1 { margin: 0; font-size: clamp(2.6rem, 7vw, 5.8rem); max-width: 780px; }
h2 { margin: 0; font-size: clamp(2rem, 4vw, 3.3rem); }
h3 { margin: 0; }
.hero-lead {
  max-width: 760px;
  color: var(--muted);
  font-size: clamp(1rem, 2vw, 1.18rem);
  margin: 1.25rem 0 2rem;
}
.command-bar {
  display: grid;
  grid-template-columns: auto 1fr auto auto;
  gap: 0.5rem;
  padding: 0.45rem;
  border-radius: 22px;
  background: rgba(0, 0, 0, 0.2);
  border: 1px solid var(--line);
}
.command-bar input {
  min-width: 0;
  border: 0;
  outline: 0;
  background: transparent;
  color: var(--text);
  padding: 0.85rem 0.75rem;
}
.command-bar input::placeholder { color: var(--muted); }
.mode-button,
.paste-button,
.run-button,
.ghost-button {
  border: 0;
  border-radius: 17px;
  padding: 0.85rem 1rem;
  font-weight: 900;
  color: var(--text);
}
.mode-button,
.paste-button,
.ghost-button { background: var(--panel-strong); border: 1px solid var(--line); }
.run-button {
  background: linear-gradient(135deg, var(--green), var(--cyan));
  color: #05110a;
}
.trust-row {
  margin-top: 1rem;
  display: flex;
  gap: 0.65rem;
  flex-wrap: wrap;
  color: var(--muted);
  font-size: 0.92rem;
}
.trust-row span,
.panel-head span {
  border: 1px solid var(--line);
  background: var(--panel);
  border-radius: 999px;
  padding: 0.35rem 0.65rem;
}
.tool-switcher {
  padding: 1rem;
  display: grid;
  gap: 0.75rem;
}
.tool-switcher button {
  border: 1px solid var(--line);
  color: var(--text);
  background: rgba(255, 255, 255, 0.05);
  border-radius: 22px;
  padding: 1rem;
  text-align: left;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0 0.75rem;
  align-items: center;
}
.tool-switcher button span {
  width: 42px;
  height: 42px;
  grid-row: span 2;
  display: grid;
  place-items: center;
  border-radius: 15px;
  background: rgba(53, 245, 139, 0.13);
  color: var(--green);
  font-size: 1.2rem;
}
.tool-switcher small { color: var(--muted); }
.tool-switcher button.active,
.tool-switcher button:hover { border-color: rgba(53, 245, 139, 0.7); transform: translateY(-1px); }

.workspace,
.section,
.page {
  max-width: 1180px;
  margin: 0 auto;
  padding: 2.5rem 1rem;
}
.status-panel {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.4rem;
  margin-bottom: 1.2rem;
}
.results-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(280px, 0.9fr);
  gap: 1.2rem;
}
.panel { padding: 1.25rem; }
.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1rem;
}
.panel-head h2 { font-size: 1.3rem; }
#raw-output {
  min-height: 320px;
  max-height: 520px;
  overflow: auto;
  white-space: pre-wrap;
  margin: 0;
  background: rgba(0, 0, 0, 0.26);
  border-radius: 20px;
  padding: 1rem;
  color: var(--muted);
}
.tracks-list { display: grid; gap: 0.8rem; }
.empty-state {
  min-height: 220px;
  display: grid;
  place-items: center;
  text-align: center;
  color: var(--muted);
  border: 1px dashed var(--line);
  border-radius: 22px;
}
.track-card {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 1rem;
  align-items: center;
  padding: 1rem;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.05);
  border-radius: 22px;
}
.track-index {
  width: 44px;
  height: 44px;
  border-radius: 16px;
  display: grid;
  place-items: center;
  background: rgba(72, 215, 255, 0.13);
  color: var(--cyan);
  font-weight: 900;
}
.track-card p { margin: 0.3rem 0 0; color: var(--muted); }
.track-meta { display: grid; justify-items: end; gap: 0.35rem; color: var(--muted); }
.track-meta a {
  text-decoration: none;
  background: linear-gradient(135deg, var(--green), var(--cyan));
  color: #06110b;
  border-radius: 999px;
  padding: 0.45rem 0.75rem;
  font-weight: 900;
}
.steps,
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 1.4rem;
}
.feature-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.steps article,
.feature-grid article { padding: 1.25rem; }
.steps span {
  display: inline-grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 16px;
  background: rgba(255, 79, 216, 0.14);
  color: var(--pink);
  font-weight: 900;
  margin-bottom: 1rem;
}
.steps p,
.feature-grid p,
.prose-card p,
.faq-stack p,
.footer p { color: var(--muted); }
.page { min-height: 62vh; }
.page h1 { text-align: center; margin-bottom: 1.2rem; }
.prose-card { max-width: 760px; margin: 0 auto; padding: 1.5rem; }
.faq-stack { max-width: 860px; margin: 0 auto; display: grid; gap: 0.85rem; }
.faq-stack details { padding: 1.1rem 1.25rem; }
.faq-stack summary { cursor: pointer; font-weight: 900; }
.footer {
  max-width: 1180px;
  margin: 2rem auto 0;
  padding: 2rem 1rem 3rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.footer > div:last-child { display: flex; gap: 0.6rem; flex-wrap: wrap; }
.footer-brand { padding: 0; }

@media (max-width: 900px) {
  .hero-grid,
  .results-grid,
  .steps,
  .feature-grid { grid-template-columns: 1fr; }
  .command-bar { grid-template-columns: 1fr; }
  .mode-button { justify-self: stretch; }
  .topbar { gap: 1rem; }
  .track-card { grid-template-columns: 1fr; }
  .track-meta { justify-items: start; }
  .footer { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 560px) {
  .top-links button:not(#theme-toggle) { display: none; }
  .hero-shell { padding-top: 2.2rem; }
  h1 { font-size: 2.5rem; }
  .hero-copy, .tool-switcher, .panel, .steps article, .feature-grid article { border-radius: 22px; }
}