:root {
  --paper: #070809;
  --paper-2: #090a0d;
  --ink: #ece7de;
  --muted: #a9a39a;
  --line: rgba(241, 235, 224, 0.1);
  --line-strong: rgba(241, 235, 224, 0.22);
  --shadow-soft: 0 26px 70px rgba(0, 0, 0, 0.42);

  --bg-0: #050608;
  --bg-1: #07080b;
  --bg-2: #090a0d;
  --bg-3: #0b0c10;
  --cream: #ece4d7;
  --cream-dim: #9e978c;
  --line-dark: rgba(236, 228, 215, 0.14);
  --line-dark-strong: rgba(236, 228, 215, 0.27);
  --accent-1: #ff8f65;
  --accent-2: #f5bf5f;
  --accent-3: #8ccfb7;
  --error: #ff9f90;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

html {
  scroll-behavior: smooth;
}

body {
  color: var(--ink);
  font-family: "Space Grotesk", sans-serif;
  background:
    radial-gradient(1200px 800px at 20% 10%, rgba(68, 98, 173, 0.16), transparent 63%),
    radial-gradient(1000px 760px at 72% 4%, rgba(61, 88, 167, 0.1), transparent 66%),
    linear-gradient(180deg, var(--paper), var(--paper-2));
  position: relative;
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: -8% -8%;
  pointer-events: none;
  z-index: -1;
  opacity: 0.75;
  background:
    radial-gradient(950px 220px at 6% 44%, rgba(108, 152, 255, 0.28), transparent 70%),
    radial-gradient(900px 220px at 30% 37%, rgba(108, 152, 255, 0.23), transparent 70%),
    radial-gradient(860px 220px at 56% 30%, rgba(108, 152, 255, 0.19), transparent 70%),
    radial-gradient(820px 220px at 79% 24%, rgba(108, 152, 255, 0.15), transparent 70%),
    radial-gradient(760px 220px at 94% 20%, rgba(108, 152, 255, 0.1), transparent 70%);
  filter: blur(4px);
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
  background: radial-gradient(ellipse at center, transparent 55%, rgba(0, 0, 0, 0.62) 100%);
}

.grain {
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.34;
  background-image:
    radial-gradient(rgba(214, 223, 255, 0.18) 0.6px, transparent 0.8px),
    radial-gradient(rgba(214, 223, 255, 0.14) 0.6px, transparent 0.8px);
  background-size: 13px 13px, 13px 13px;
  background-position: 0 0, 6px 6px;
}

.page {
  position: relative;
  width: min(1120px, calc(100vw - 2rem));
  margin: 1.1rem auto 2rem;
  display: grid;
  gap: 1rem;
}

.hero {
  border: 1px solid transparent;
  border-radius: 1.1rem;
  padding: 1.1rem 1.15rem 1.25rem;
  background: transparent;
  backdrop-filter: none;
  box-shadow: none;
  min-height: calc(100vh - 2.2rem);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  transition: transform 620ms cubic-bezier(0.22, 1, 0.36, 1), opacity 620ms ease;
}

.hero-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.8rem;
}

.kicker {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #9f988d;
}

h1 {
  margin: 0.7rem 0 0.55rem;
  font-family: "Instrument Serif", serif;
  font-size: clamp(2rem, 6vw, 4.5rem);
  line-height: 0.96;
  font-weight: 400;
  letter-spacing: -0.02em;
  color: #f1ece3;
}

.em {
  font-style: italic;
}

.hero p {
  margin: 0;
  max-width: 60ch;
  color: #b4aea4;
  line-height: 1.45;
}

.hero-copy {
  display: grid;
  justify-items: center;
  gap: 0.4rem;
}

.hero-badge {
  border: 1px solid rgba(236, 228, 215, 0.16);
  border-radius: 999px;
  padding: 0.22rem 0.58rem;
  color: #9f988d;
  font-size: 0.64rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-family: "JetBrains Mono", monospace;
  background: rgba(255, 255, 255, 0.02);
}

.hero-gradient {
  font-style: italic;
  background: linear-gradient(90deg, #ffbe65 0%, #ff7a67 45%, #a078f6 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.1rem;
  margin-top: 1.25rem;
  text-decoration: none;
}

.btn {
  appearance: none;
  border: 1px solid transparent;
  border-radius: 0.82rem;
  padding: 0.62rem 0.9rem;
  font: inherit;
  font-size: 0.88rem;
  cursor: pointer;
  transition: transform 170ms ease, opacity 170ms ease, border-color 170ms ease, background-color 170ms ease;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn:not(:disabled):active {
  transform: translateY(1px);
}

.btn-primary {
  background: linear-gradient(95deg, var(--accent-1), var(--accent-2));
  color: #291b12;
  font-weight: 700;
}

.btn-ghost {
  background: rgba(236, 228, 215, 0.08);
  border-color: var(--line-dark);
  color: var(--cream);
}

.arrow {
  margin-left: 0.32rem;
}

.playground {
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-radius: 1rem;
  background:
    radial-gradient(560px 330px at 88% -8%, rgba(255, 143, 101, 0.15), transparent 70%),
    linear-gradient(180deg, var(--bg-0), var(--bg-1) 34%, var(--bg-2));
  color: var(--cream);
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.25);
  overflow: hidden;
  transition: transform 620ms cubic-bezier(0.22, 1, 0.36, 1);
}

.playground.load-moving {
  transform: translateY(12px);
}

.stage {
  padding: 1rem;
}

.stage-enter {
  animation: stageEnter 760ms cubic-bezier(0.2, 0.95, 0.2, 1) both;
}

.select-stage {
  min-height: calc(100vh - 2.2rem);
  display: grid;
  align-content: center;
  justify-items: center;
  gap: 0.9rem;
  padding-top: 2rem;
  padding-bottom: 2rem;
  background: transparent;
}

#selectView {
  background: transparent !important;
}

#loadingView,
#chatView,
#errorView {
  min-height: calc(100vh - 2.2rem);
  display: grid;
  align-content: center;
}

.page.cta-moving .hero {
  transform: translateY(-22px);
  opacity: 0.92;
}

.page.cta-moving .playground {
  transform: translateY(22px);
}

.select-stage.cta-enter {
  animation: sectionEnter 760ms cubic-bezier(0.2, 0.95, 0.2, 1) both;
}

.hidden {
  display: none !important;
}

.select-head h2,
.pg-title {
  margin: 0;
  font-family: "Instrument Serif", serif;
  font-size: clamp(1.65rem, 3vw, 2.2rem);
  font-weight: 400;
  line-height: 1;
  letter-spacing: -0.01em;
}

.select-head p {
  margin: 0.45rem 0 0;
  color: var(--cream-dim);
  max-width: 64ch;
  line-height: 1.4;
  text-align: center;
}

.model-grid {
  margin-top: 0.85rem;
  display: grid;
  grid-template-columns: repeat(3, minmax(220px, 1fr));
  gap: 0.7rem;
  width: min(980px, 100%);
  background: transparent;
}

.model-card {
  appearance: none;
  -webkit-appearance: none;
  position: relative;
  border: 1px solid var(--line-dark);
  border-radius: 0.9rem;
  background: transparent !important;
  color: inherit;
  text-align: left;
  padding: 0.82rem;
}

.model-card:hover {
  border-color: var(--line-dark-strong);
}

.model-card.selected {
  border-color: rgba(245, 191, 95, 0.95);
  box-shadow: inset 0 0 0 1px rgba(245, 191, 95, 0.14);
}

.model-card.disabled {
  opacity: 0.62;
}

.model-card .check {
  width: 24px;
  height: 24px;
  border-radius: 999px;
  border: 1px solid var(--line-dark);
  display: inline-block;
  background: transparent;
}

.model-card.selected .check {
  border-color: rgba(245, 191, 95, 0.9);
  background: radial-gradient(circle, #f8d591 62%, transparent 64%);
}

.mc-size {
  margin-top: 0.72rem;
  font-size: 1.38rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.mc-size .gb {
  margin-left: 0.45rem;
  font-size: 0.78rem;
  color: var(--cream-dim);
  font-family: "JetBrains Mono", monospace;
}

.mc-name {
  margin-top: 0.34rem;
  font-weight: 600;
}

.mc-blurb {
  margin-top: 0.22rem;
  font-size: 0.84rem;
  color: var(--cream-dim);
  line-height: 1.36;
}

.mc-ribbon {
  position: absolute;
  top: 0.66rem;
  right: 0.66rem;
  border: 1px solid var(--line-dark);
  border-radius: 999px;
  padding: 0.15rem 0.4rem;
  font-size: 0.64rem;
  font-family: "JetBrains Mono", monospace;
  color: var(--cream-dim);
}

.select-actions {
  margin-top: 0.92rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.7rem;
  flex-wrap: wrap;
}

.note {
  font-size: 0.75rem;
  color: var(--cream-dim);
  font-family: "JetBrains Mono", monospace;
}

.load-card {
  margin: 1.5rem auto;
  width: min(460px, calc(100% - 1rem));
  border: 1px solid var(--line-dark);
  border-radius: 0.92rem;
  background: rgba(255, 255, 255, 0.03);
  padding: 1.12rem;
  text-align: center;
}

.label {
  color: var(--cream-dim);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.69rem;
  font-family: "JetBrains Mono", monospace;
}

.load-card h3 {
  margin: 0.58rem 0 0.7rem;
  font-family: "Instrument Serif", serif;
  font-size: clamp(1.45rem, 4vw, 2rem);
  font-weight: 400;
}

.progress {
  border: 1px solid var(--line-dark);
  border-radius: 999px;
  overflow: hidden;
  height: 0.54rem;
  background: rgba(255, 255, 255, 0.04);
}

.fill {
  width: 0;
  height: 100%;
  background: linear-gradient(90deg, var(--accent-1), var(--accent-2), var(--accent-3));
  transition: width 180ms linear;
}

.load-row {
  margin-top: 0.58rem;
  display: flex;
  justify-content: space-between;
  gap: 0.4rem;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.74rem;
  color: var(--cream-dim);
}

.error-text {
  color: var(--error);
  margin: 0.5rem 0 0.9rem;
  line-height: 1.35;
}

.prism {
  width: 34px;
  height: 34px;
  margin: 0 auto;
  clip-path: polygon(50% 4%, 100% 100%, 0% 100%);
  background:
    radial-gradient(circle at 50% 18%, rgba(255, 255, 255, 0.34), transparent 28%),
    linear-gradient(180deg, var(--accent-2), var(--accent-1) 42%, #b17be8 100%);
  filter: drop-shadow(0 0 18px rgba(255, 184, 77, 0.2));
}

.spin {
  animation: spin 8s linear infinite;
}

.pg-header-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.7rem;
  margin-bottom: 0.84rem;
  flex-wrap: wrap;
}

.pg-mini {
  display: flex;
  gap: 0.46rem;
  flex-wrap: wrap;
}

.chip {
  border: 1px solid var(--line-dark);
  border-radius: 999px;
  padding: 0.22rem 0.56rem;
  font-size: 0.73rem;
  color: var(--cream);
  display: inline-flex;
  align-items: center;
  gap: 0.38rem;
}

.chip .k {
  color: var(--cream-dim);
  text-transform: uppercase;
  font-size: 0.66rem;
  font-family: "JetBrains Mono", monospace;
}

.chat {
  border: 1px solid var(--line-dark);
  border-radius: 0.92rem;
  overflow: hidden;
  background: rgba(0, 0, 0, 0.08);
  width: min(1100px, 100%);
  margin-inline: auto;
  height: min(84vh, 920px);
  display: grid;
  grid-template-rows: auto 1fr auto;
}

.chat-bar {
  padding: 0.56rem 0.7rem;
  border-bottom: 1px solid var(--line-dark);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.7rem;
}

.chat-bar .left {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.76rem;
  font-family: "JetBrains Mono", monospace;
  color: var(--cream-dim);
  text-transform: uppercase;
}

.dots {
  display: inline-flex;
  align-items: center;
  gap: 0.2rem;
}

.dots span {
  width: 7px;
  height: 7px;
  border-radius: 999px;
  background: rgba(236, 228, 215, 0.3);
}

.chat-bar .right {
  display: inline-flex;
  align-items: baseline;
  gap: 0.4rem;
}

.tps-value {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.92rem;
  color: #f5cb74;
}

.tps-label {
  font-size: 0.69rem;
  color: var(--cream-dim);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-family: "JetBrains Mono", monospace;
}

.messages {
  min-height: 260px;
  max-height: min(56vh, 600px);
  overflow: auto;
  padding: 0.75rem;
}

.empty-state {
  min-height: 210px;
  display: grid;
  place-content: center;
  gap: 0.4rem;
  text-align: center;
}

.empty-title {
  font-family: "Instrument Serif", serif;
  font-size: clamp(1.7rem, 4.4vw, 2.15rem);
  line-height: 1;
}

.empty-sub {
  font-size: 0.71rem;
  color: var(--cream-dim);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-family: "JetBrains Mono", monospace;
}

.message {
  margin-bottom: 0.72rem;
  animation: lift 220ms ease;
}

.message:last-child {
  margin-bottom: 0;
}

.role {
  display: inline-block;
  margin-bottom: 0.28rem;
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--cream-dim);
  font-family: "JetBrains Mono", monospace;
}

.bubble {
  border: 1px solid var(--line-dark);
  border-radius: 0.75rem;
  padding: 0.58rem 0.66rem;
  line-height: 1.5;
  white-space: pre-wrap;
}

.message.user .bubble {
  background: rgba(140, 207, 183, 0.08);
}

.message.assistant .bubble {
  background: rgba(255, 191, 95, 0.08);
}

.message.system .bubble {
  background: rgba(255, 143, 101, 0.07);
}

.streaming::after {
  content: "|";
  margin-left: 0.07rem;
  color: #f5cb74;
  animation: blink 860ms step-end infinite;
}

.composer {
  border-top: 1px solid var(--line-dark);
  padding: 0.7rem;
}

textarea {
  width: 100%;
  border-radius: 0.75rem;
  border: 1px solid var(--line-dark);
  background: rgba(255, 255, 255, 0.025);
  color: var(--cream);
  padding: 0.62rem 0.7rem;
  min-height: 52px;
  max-height: 220px;
  resize: vertical;
  font: inherit;
}

textarea:focus-visible {
  outline: 2px solid rgba(245, 191, 95, 0.55);
  outline-offset: 1px;
}

.composer-actions {
  margin-top: 0.58rem;
  display: flex;
  gap: 0.45rem;
  justify-content: flex-end;
  flex-wrap: wrap;
}

.status-pill {
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  padding: 0.22rem 0.52rem;
  font-size: 0.72rem;
  font-family: "JetBrains Mono", monospace;
}

.status-pill.waiting {
  color: #d3b267;
  border-color: rgba(213, 170, 84, 0.35);
  background: rgba(68, 53, 22, 0.46);
}

.status-pill.ok {
  color: #88d5bd;
  border-color: rgba(70, 166, 137, 0.4);
  background: rgba(16, 51, 43, 0.48);
}

.status-pill.error {
  color: #ffb2a2;
  border-color: rgba(182, 70, 56, 0.42);
  background: rgba(67, 20, 16, 0.5);
}

.repo-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.repo-row a {
  color: #d9cec1;
  text-decoration: none;
  border: 1px solid rgba(236, 228, 215, 0.14);
  border-radius: 999px;
  padding: 0.32rem 0.55rem;
  background: rgba(255, 255, 255, 0.04);
  font-size: 0.78rem;
}

.repo-row a:hover {
  border-color: var(--line-strong);
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

.reveal {
  animation: reveal 340ms ease both;
}

@keyframes blink {
  50% {
    opacity: 0;
  }
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

@keyframes lift {
  from {
    opacity: 0;
    transform: translateY(4px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes reveal {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes sectionEnter {
  from {
    opacity: 0.62;
    transform: translateY(36px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes stageEnter {
  from {
    opacity: 0.58;
    transform: translateY(38px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 760px) {
  .page {
    width: min(100vw - 1rem, 1120px);
    margin-top: 0.5rem;
  }

  .hero {
    padding: 0.95rem;
    min-height: 88svh;
    justify-content: center;
  }

  .stage {
    padding: 0.85rem;
  }

  .select-stage {
    min-height: auto;
    align-content: start;
    padding-top: 1rem;
    padding-bottom: 1rem;
  }

  #loadingView,
  #chatView,
  #errorView {
    min-height: auto;
    align-content: start;
  }

  .model-grid {
    grid-template-columns: 1fr;
  }

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

  .messages {
    min-height: 220px;
  }

  .chat {
    height: auto;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .hero,
  .playground {
    transition: none;
  }

  .select-stage.cta-enter {
    animation: none;
  }

  .stage-enter {
    animation: none;
  }
}