:root {
  color-scheme: dark;
  --panel: rgba(17, 21, 31, 0.92);
  --panel-strong: rgba(22, 27, 40, 0.98);
  --ink: #f7f8fb;
  --soft: #d8deec;
  --muted: #a9b0c3;
  --line: rgba(255, 255, 255, 0.14);
  --pink: #ff4fa3;
  --purple: #9d6cff;
  --cyan: #31d7d3;
  --gold: #f6be4f;
  --green: #78d978;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background:
    radial-gradient(circle at 12% 8%, rgba(255, 79, 163, 0.16), transparent 28rem),
    radial-gradient(circle at 88% 14%, rgba(49, 215, 211, 0.13), transparent 30rem),
    linear-gradient(180deg, #07090f 0%, #10131b 100%);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

button,
textarea {
  font: inherit;
}

button {
  cursor: pointer;
}

button:focus-visible,
textarea:focus-visible,
a:focus-visible,
pre:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

.skip-link {
  position: absolute;
  top: 0.5rem;
  left: 0.5rem;
  z-index: 20;
  transform: translateY(-150%);
  border-radius: 0.45rem;
  background: var(--cyan);
  color: #021114;
  padding: 0.6rem 0.8rem;
  font-weight: 900;
}

.skip-link:focus {
  transform: translateY(0);
}

.app-shell {
  width: min(1240px, calc(100% - 1.25rem));
  margin: 0 auto;
  padding: 1.25rem;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.25rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  color: var(--ink);
  font-weight: 950;
  text-decoration: none;
}

.brand-mark {
  display: inline-grid;
  place-items: center;
  width: 2.35rem;
  height: 2.35rem;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 0.5rem;
  background: linear-gradient(135deg, rgba(255, 79, 163, 0.24), rgba(49, 215, 211, 0.18));
  box-shadow: 0 0 24px rgba(255, 79, 163, 0.15);
}

.top-action,
.button {
  min-height: 2.5rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  border-radius: 0.45rem;
  background: rgba(255, 255, 255, 0.07);
  color: var(--ink);
  padding: 0 0.9rem;
  font-weight: 850;
  text-decoration: none;
}

.button.primary {
  border-color: var(--cyan);
  background: var(--cyan);
  color: #021114;
}

.button.secondary {
  border-color: rgba(157, 108, 255, 0.55);
  background: rgba(157, 108, 255, 0.15);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(17rem, 0.65fr);
  gap: 1rem;
  align-items: stretch;
  margin-bottom: 1rem;
}

.hero-copy,
.hero-panel,
.tool-card,
.begin-panel,
.begin-card,
.upload-panel,
.conversation-panel,
.roadmap-panel,
.final-output {
  border: 1px solid var(--line);
  border-radius: 0.5rem;
  background: var(--panel);
  box-shadow: 0 1rem 2.5rem rgba(0, 0, 0, 0.18);
}

.hero-copy {
  padding: clamp(1.25rem, 4vw, 2.25rem);
}

.hero-copy h1 {
  margin: 0.3rem 0 0.75rem;
  font-size: clamp(2.25rem, 7vw, 5rem);
  line-height: 0.95;
  max-width: 14ch;
}

.hero-copy p,
.hero-panel p,
.message p,
.roadmap-panel p,
.final-output p {
  color: var(--muted);
  line-height: 1.55;
}

.educational-note {
  max-width: 58rem;
  border-left: 3px solid var(--gold);
  padding-left: 0.85rem;
}

.hero-panel {
  padding: 1.25rem;
}

.hero-panel h2,
.roadmap-header h2,
.final-header h2 {
  margin: 0.3rem 0 0.5rem;
}

.eyebrow {
  margin: 0 0 0.25rem;
  color: var(--cyan);
  font-size: 0.72rem;
  font-weight: 950;
  letter-spacing: 0;
  text-transform: uppercase;
}

.prototype-shell {
  display: grid;
  grid-template-columns: minmax(0, 0.64fr) minmax(18rem, 0.36fr);
  gap: 1rem;
  align-items: start;
}

.tool-directory {
  margin-bottom: 1rem;
}

.section-heading {
  margin-bottom: 1rem;
}

.section-heading h2 {
  margin: 0.3rem 0 0.5rem;
  font-size: clamp(1.6rem, 4vw, 2.7rem);
  line-height: 1.05;
}

.tool-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.75rem;
}

.tool-card {
  min-height: 12rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  color: var(--ink);
  padding: 1rem;
  text-align: left;
}

.tool-card:hover {
  border-color: var(--pink);
  transform: translateY(-1px);
}

.tool-card span {
  width: fit-content;
  border-radius: 999px;
  border: 1px solid rgba(49, 215, 211, 0.35);
  color: var(--cyan);
  padding: 0.2rem 0.55rem;
  font-weight: 950;
  font-size: 0.78rem;
}

.tool-card h3 {
  margin: 0.3rem 0 0.5rem;
}

.tool-card p,
.section-heading p,
.tool-context p {
  color: var(--muted);
  line-height: 1.5;
}

.tool-directory[hidden],
.discovery-experience[hidden],
.begin-panel[hidden],
.upload-panel[hidden] {
  display: none;
}

.tool-context {
  display: flex;
  gap: 1rem;
  align-items: start;
  margin-bottom: 1rem;
  border: 1px solid var(--line);
  border-radius: 0.5rem;
  background: var(--panel-strong);
  padding: 1rem;
}

.tool-context h2 {
  margin: 0.2rem 0 0.35rem;
}

.begin-panel {
  margin-bottom: 1rem;
  padding: 1rem;
}

.begin-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 0.75rem;
}

.begin-card {
  min-height: 8.5rem;
  display: grid;
  align-content: space-between;
  gap: 0.65rem;
  color: var(--ink);
  padding: 1rem;
  text-align: left;
}

.begin-card:hover {
  border-color: var(--cyan);
  transform: translateY(-1px);
}

.begin-card span {
  color: var(--soft);
  font-weight: 950;
}

.begin-card p,
.upload-panel p {
  margin: 0;
  color: var(--muted);
  line-height: 1.45;
}

.upload-panel {
  display: grid;
  gap: 0.75rem;
  margin-top: 0.85rem;
  padding: 1rem;
}

.upload-panel label {
  color: var(--soft);
  font-weight: 850;
}

.upload-panel input {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 0.45rem;
  background: rgba(0, 0, 0, 0.25);
  color: var(--soft);
  padding: 0.75rem;
}

.conversation-panel,
.roadmap-panel,
.final-output {
  padding: 1rem;
}

.conversation-log {
  display: grid;
  gap: 0.75rem;
  max-height: 34rem;
  overflow: auto;
  padding-right: 0.25rem;
}

.message {
  max-width: 86%;
  border: 1px solid var(--line);
  border-radius: 0.5rem;
  padding: 0.9rem;
}

.message p {
  margin: 0;
}

.message p + p,
.message h3 {
  margin-top: 0.75rem;
}

.message.assistant {
  justify-self: start;
  background: rgba(49, 215, 211, 0.09);
}

.message.patient {
  justify-self: end;
  background: rgba(255, 79, 163, 0.11);
}

.message .why {
  border-left: 3px solid var(--gold);
  padding-left: 0.75rem;
  color: var(--soft);
}

.composer {
  display: grid;
  gap: 0.6rem;
  margin-top: 1rem;
}

.composer[hidden] {
  display: none;
}

.composer label {
  color: var(--soft);
  font-weight: 850;
}

textarea {
  width: 100%;
  min-height: 8rem;
  border: 1px solid var(--line);
  border-radius: 0.5rem;
  background: rgba(0, 0, 0, 0.25);
  color: var(--ink);
  padding: 0.85rem;
  resize: vertical;
}

.composer-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.live-roadmap {
  display: grid;
  gap: 0.65rem;
}

.live-roadmap article {
  border: 1px solid rgba(255, 255, 255, 0.11);
  border-radius: 0.5rem;
  background: rgba(255, 255, 255, 0.04);
  padding: 0.75rem;
}

.live-roadmap h3 {
  margin: 0 0 0.35rem;
  color: var(--soft);
}

.live-roadmap p {
  margin: 0;
}

.final-output {
  margin-top: 1rem;
  background: var(--panel-strong);
}

.final-output[hidden] {
  display: none;
}

.final-roadmap {
  min-height: 16rem;
  border: 1px solid rgba(49, 215, 211, 0.28);
  border-radius: 0.5rem;
  background: rgba(0, 0, 0, 0.25);
  color: var(--soft);
  padding: 1rem;
  white-space: pre-wrap;
  line-height: 1.55;
  font-family: inherit;
}

@media (max-width: 980px) {
  .hero,
  .prototype-shell,
  .tool-grid,
  .begin-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .app-shell {
    width: min(100% - 0.75rem, 1240px);
    padding: 0.75rem 0.4rem;
  }

  .topbar {
    align-items: flex-start;
    flex-direction: column;
  }

  .tool-context {
    flex-direction: column;
  }

  .message {
    max-width: 100%;
  }
}

@media print {
  body {
    background: #fff;
    color: #111;
  }

  .topbar,
  .hero,
  .prototype-shell,
  .composer-actions,
  .skip-link {
    display: none !important;
  }

  .app-shell {
    width: 100%;
    padding: 0;
  }

  .final-output {
    display: block !important;
    border: 0;
    box-shadow: none;
    background: #fff;
    color: #111;
  }

  .final-roadmap {
    border: 0;
    background: #fff;
    color: #111;
  }
}