:root {
  --bg: #edf2f8;
  --surface: rgba(255, 255, 255, 0.92);
  --surface-strong: #ffffff;
  --line: rgba(77, 99, 128, 0.18);
  --ink: #182333;
  --muted: #64748b;
  --accent: #1d4ed8;
  --accent-soft: rgba(29, 78, 216, 0.08);
  --accent-strong: #0f3fb8;
  --success: #0f8a4b;
  --success-soft: rgba(15, 138, 75, 0.1);
  --danger: #b12b2b;
  --danger-soft: rgba(177, 43, 43, 0.1);
  --shadow: 0 18px 44px rgba(20, 31, 51, 0.1);
  color-scheme: light;
}

* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; }
body {
  font-family: "Segoe UI", system-ui, sans-serif;
  background:
    radial-gradient(circle at top right, rgba(29, 78, 216, 0.1), transparent 40%),
    linear-gradient(180deg, #f5f8fc 0%, var(--bg) 100%);
  color: var(--ink);
}

a { color: inherit; }
code {
  background: rgba(15, 23, 42, 0.06);
  border-radius: 8px;
  padding: 0.12rem 0.36rem;
}

.shell {
  width: min(1180px, 100%);
  margin: 0 auto;
  padding: 28px 18px 36px;
}

.shell-landing,
.shell-app {
  display: grid;
  gap: 18px;
}

.hero-card,
.panel-card,
.status-panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 24px;
  box-shadow: var(--shadow);
}

.hero-card,
.panel-card {
  padding: 22px;
}

.status-panel {
  padding: 14px 16px;
  color: var(--muted);
}

.status-panel.success {
  background: color-mix(in srgb, var(--success-soft) 70%, white 30%);
  color: var(--success);
}

.status-panel.error {
  background: color-mix(in srgb, var(--danger-soft) 72%, white 28%);
  color: var(--danger);
}

.eyebrow {
  font-size: 0.74rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
}

h1, h2 {
  margin: 8px 0 10px;
  line-height: 1.05;
  letter-spacing: -0.04em;
}

h1 { font-size: clamp(2rem, 4vw, 3.1rem); }
h2 { font-size: clamp(1.25rem, 2vw, 1.7rem); }

.lede,
.muted,
.panel-card p {
  color: var(--muted);
  line-height: 1.55;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 18px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 16px;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: var(--surface-strong);
  color: var(--ink);
  text-decoration: none;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}

.button.button-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  color: white;
  border-color: color-mix(in srgb, var(--accent) 70%, white 30%);
}

.button.button-quiet {
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: blur(12px);
}

.grid {
  display: grid;
  gap: 18px;
}

.grid-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.grid-4 {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.workspace-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(320px, 0.95fr);
  gap: 18px;
  align-items: start;
}

.workspace-sidebar {
  display: grid;
  gap: 18px;
}

.app-header {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 16px;
  align-items: start;
}

.assistant-panel {
  display: grid;
  gap: 14px;
}

.compact-actions {
  margin-top: 0;
}

.embed-card {
  display: grid;
  gap: 14px;
}

.embed-head {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 14px;
  align-items: center;
}

.panel-head-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
}

.field-stack {
  display: grid;
  gap: 8px;
}

.field-stack > span {
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

.legacy-frame {
  width: 100%;
  min-height: 78vh;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: #fff;
}

.voice-frame {
  width: 100%;
  min-height: 72vh;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: #fff;
}

.voice-context-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.context-card {
  padding: 18px;
}

.context-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 28px;
  padding: 0 10px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 700;
}

.context-pill.ended {
  background: rgba(15, 23, 42, 0.06);
  color: var(--muted);
}

.landing-shell {
  width: min(1240px, calc(100% - 32px));
  margin: 0 auto;
  padding: 28px 0 40px;
  display: grid;
  gap: 22px;
}

.landing-hero,
.landing-feature-card,
.landing-footer-card,
.landing-proof-card,
.landing-mini-card {
  border: 1px solid rgba(41, 61, 96, 0.12);
  box-shadow: 0 28px 70px rgba(16, 27, 48, 0.12);
}

.landing-hero {
  position: relative;
  overflow: hidden;
  padding: 28px;
  border-radius: 32px;
  background:
    radial-gradient(circle at 12% 18%, rgba(13, 148, 136, 0.18), transparent 28%),
    radial-gradient(circle at 88% 12%, rgba(59, 130, 246, 0.2), transparent 26%),
    linear-gradient(145deg, rgba(255, 255, 255, 0.94), rgba(242, 247, 255, 0.9));
}

.landing-topline {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
  margin-bottom: 22px;
}

.landing-badge,
.landing-domain {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  padding: 0 14px;
  border-radius: 999px;
  border: 1px solid rgba(24, 35, 51, 0.08);
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: blur(12px);
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.landing-badge {
  color: #0f172a;
}

.landing-domain {
  color: #0f766e;
}

.landing-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(320px, 0.9fr);
  gap: 22px;
  align-items: stretch;
}

.landing-copy {
  display: grid;
  gap: 14px;
}

.landing-kicker {
  margin: 0;
  color: #0f766e;
  font-size: 0.88rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.landing-copy h1,
.landing-proof-card h2,
.landing-feature-card h2 {
  font-family: "Iowan Old Style", "Palatino Linotype", "Book Antiqua", Georgia, serif;
}

.landing-copy h1 {
  margin: 0;
  font-size: clamp(2.8rem, 6vw, 5.2rem);
  line-height: 0.95;
  letter-spacing: -0.06em;
  max-width: 12ch;
}

.landing-lede {
  margin: 0;
  max-width: 62ch;
  color: #51647c;
  font-size: 1.03rem;
  line-height: 1.75;
}

.landing-actions {
  margin-top: 8px;
}

.landing-status {
  margin-top: 4px;
  max-width: fit-content;
}

.landing-aside {
  display: grid;
  gap: 16px;
}

.landing-proof-card {
  padding: 22px;
  border-radius: 28px;
  background: linear-gradient(160deg, rgba(8, 47, 73, 0.95), rgba(15, 23, 42, 0.97));
  color: #eff6ff;
}

.landing-proof-label,
.landing-mini-label {
  display: inline-flex;
  margin-bottom: 10px;
  color: rgba(191, 219, 254, 0.92);
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.landing-proof-card h2 {
  margin: 0 0 12px;
  font-size: clamp(1.7rem, 3vw, 2.5rem);
  line-height: 1;
}

.landing-proof-list {
  margin: 0;
  padding-left: 18px;
  display: grid;
  gap: 10px;
  color: rgba(226, 232, 240, 0.92);
  line-height: 1.55;
}

.landing-mini-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.landing-mini-card {
  padding: 18px;
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.74);
  backdrop-filter: blur(14px);
}

.landing-mini-card p,
.landing-feature-card p,
.landing-footer-note,
.landing-footer-copy {
  margin: 0;
  color: #5d7088;
  line-height: 1.6;
}

.landing-band {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.9fr) minmax(0, 0.9fr);
  gap: 18px;
}

.landing-feature-card,
.landing-footer-card {
  padding: 22px;
  border-radius: 26px;
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(14px);
}

.landing-feature-card h2 {
  margin: 8px 0 10px;
  font-size: clamp(1.45rem, 2.6vw, 2.2rem);
  line-height: 1;
}

.landing-footer-card {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 16px;
  align-items: center;
}

.landing-footer-copy strong {
  color: #162033;
}

.landing-footer-note {
  max-width: 38ch;
}

.segmented {
  display: flex;
  gap: 10px;
  margin-top: 16px;
}

.segment {
  min-height: 42px;
  padding: 0 16px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--surface-strong);
  color: var(--ink);
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}

.segment.active {
  background: var(--accent-soft);
  color: var(--accent);
  border-color: color-mix(in srgb, var(--accent) 45%, white 55%);
}

.form-stack {
  display: grid;
  gap: 14px;
  margin-top: 16px;
}

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

.field > span {
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--surface-strong);
  color: var(--ink);
  font: inherit;
  padding: 13px 14px;
}

textarea {
  min-height: 150px;
  resize: vertical;
}

input:focus,
select:focus,
textarea:focus {
  outline: 2px solid color-mix(in srgb, var(--accent) 28%, transparent 72%);
  border-color: color-mix(in srgb, var(--accent) 44%, white 56%);
}

.hidden {
  display: none !important;
}

.prompt-card-form {
  display: grid;
  gap: 16px;
}

.prompt-card-preview {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin-top: 18px;
}

.code-panel {
  min-height: 280px;
  margin: 10px 0 0;
  padding: 16px;
  overflow: auto;
  border-radius: 18px;
  border: 1px solid var(--line);
  background: rgba(15, 23, 42, 0.94);
  color: #e5eefb;
  font-size: 0.9rem;
  line-height: 1.45;
}

.nested-card {
  padding: 18px;
  min-height: 280px;
  box-shadow: none;
}

.prompt-card-item {
  display: grid;
  gap: 10px;
}

.prompt-card-item h3 {
  margin: 0;
  font-size: 1.1rem;
}

.pill-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.pill {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0 10px;
  border-radius: 999px;
  background: rgba(15, 23, 42, 0.06);
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 700;
}

.pill.ready {
  background: var(--success-soft);
  color: var(--success);
}

.pill.preview_only {
  background: var(--accent-soft);
  color: var(--accent);
}

.pill.provider_unavailable {
  background: color-mix(in srgb, var(--danger-soft) 62%, white 38%);
  color: var(--danger);
}

.mini-list {
  display: grid;
  gap: 12px;
}

.mini-row {
  padding-top: 12px;
  border-top: 1px solid var(--line);
}

.mini-row:first-child {
  padding-top: 0;
  border-top: 0;
}

.mini-title {
  font-weight: 700;
}

.mini-meta {
  margin-top: 4px;
  color: var(--muted);
  font-size: 0.9rem;
}

.mini-fields {
  margin-top: 8px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.mini-field {
  display: inline-flex;
  gap: 6px;
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(15, 23, 42, 0.04);
  color: var(--muted);
  font-size: 0.8rem;
}

.audio-orb {
  display: grid;
  justify-items: center;
  gap: 10px;
  text-align: center;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background:
    radial-gradient(circle at 50% 26%, rgba(29, 78, 216, 0.12), transparent 42%),
    var(--surface-strong);
}

.audio-orb.live .audio-dot {
  transform: scale(1.08);
  box-shadow: 0 0 0 16px rgba(177, 43, 43, 0.12);
}

.audio-dot {
  width: 22px;
  height: 22px;
  border-radius: 999px;
  background: var(--danger);
  box-shadow: 0 0 0 10px rgba(177, 43, 43, 0.12);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.audio-title {
  font-size: 1.05rem;
  font-weight: 800;
}

.summary-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 20px;
  box-shadow: var(--shadow);
  padding: 18px;
}

.summary-card.tone-critical {
  background: color-mix(in srgb, var(--danger-soft) 52%, white 48%);
}

.summary-card.tone-warm {
  background: color-mix(in srgb, rgba(245, 158, 11, 0.12) 54%, white 46%);
}

.summary-card.tone-accent {
  background: color-mix(in srgb, var(--accent-soft) 60%, white 40%);
}

.summary-label {
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

.summary-value {
  font-size: clamp(1.7rem, 4vw, 2.4rem);
  font-weight: 800;
  letter-spacing: -0.05em;
  margin-top: 6px;
}

.summary-hint {
  color: var(--muted);
  margin-top: 8px;
  font-size: 0.9rem;
}

.list-stack {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.list-row {
  padding: 12px 14px;
  border-radius: 16px;
  border: 1px solid var(--line);
  background: var(--surface-strong);
}

.list-title {
  font-weight: 700;
  line-height: 1.4;
}

.list-meta,
.list-empty {
  margin-top: 5px;
  color: var(--muted);
  font-size: 0.9rem;
}

@media (max-width: 860px) {
  .grid-2 {
    grid-template-columns: 1fr;
  }
  .grid-4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .workspace-grid {
    grid-template-columns: 1fr;
  }
  .voice-context-grid {
    grid-template-columns: 1fr;
  }
  .prompt-card-preview {
    grid-template-columns: 1fr;
  }
  .landing-hero-grid,
  .landing-band,
  .landing-mini-grid {
    grid-template-columns: 1fr;
  }
  .landing-copy h1 {
    max-width: none;
  }
}

@media (max-width: 560px) {
  .grid-4 {
    grid-template-columns: 1fr;
  }
  .landing-shell {
    width: min(100% - 20px, 1240px);
    padding: 18px 0 28px;
  }
  .landing-hero,
  .landing-feature-card,
  .landing-footer-card,
  .landing-proof-card,
  .landing-mini-card {
    border-radius: 22px;
  }
  .landing-hero {
    padding: 20px;
  }
}