@import url("https://fonts.googleapis.com/css2?family=Instrument+Serif:ital@0;1&family=JetBrains+Mono:wght@300;400;500&family=Geist:wght@300;400;500;600&display=swap");
@import "tailwindcss";

:root {
  --bg: #0c0b0a;
  --bg-2: #131210;
  --bg-3: #1a1815;
  --line: #2a2620;
  --line-2: #3a342c;
  --cream: #ebe5d8;
  --cream-dim: #b8b1a3;
  --muted: #7a746a;
  --dim: #4a443d;
  --prism-1: #ff7a5c;
  --prism-2: #ffb84d;
  --prism-3: #c4d92e;
  --prism-4: #4dd0c4;
  --prism-5: #7c8ee8;
  --prism-6: #b67be8;
}

html,
body {
  background: var(--bg);
}

.prism-root {
  background: var(--bg);
  color: var(--cream);
  font-family: "Geist", "Helvetica Neue", sans-serif;
  font-weight: 400;
  letter-spacing: -0.005em;
  min-height: 100vh;
  overflow-x: hidden;
}
* {
  box-sizing: border-box;
}

.display {
  font-family: "Instrument Serif", Georgia, serif;
  font-weight: 400;
  letter-spacing: -0.02em;
}
.mono {
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-feature-settings: "tnum" 1;
}
.italic-d {
  font-style: italic;
}

/* ---------------- HERO ---------------- */
.hero {
  position: relative;
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.digit-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
}
.grain {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 2;
  opacity: 0.035;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='220' height='220'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/></filter><rect width='100%' height='100%' filter='url(%23n)' opacity='0.9'/></svg>");
}
.vignette {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 2;
  background: radial-gradient(
    ellipse at center,
    transparent 30%,
    rgba(12, 11, 10, 0.55) 75%,
    rgba(12, 11, 10, 0.96) 100%
  );
}

.hero-content {
  position: relative;
  z-index: 5;
  max-width: 960px;
  padding: 80px 36px;
  text-align: center;
  pointer-events: none;
  opacity: 0;
  transition: opacity 1.2s ease-out;
}
.hero-content.is-ready {
  opacity: 1;
}
.hero-content > * {
  pointer-events: auto;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 7px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-family: "JetBrains Mono", monospace;
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--cream-dim);
  text-transform: uppercase;
  margin-bottom: 36px;
  background: rgba(19, 18, 16, 0.5);
  backdrop-filter: blur(6px);
}

.hero h1 {
  font-family: "Instrument Serif", serif;
  font-weight: 400;
  font-size: clamp(58px, 9vw, 132px);
  line-height: 0.96;
  letter-spacing: -0.035em;
  margin: 0 0 28px;
  text-shadow:
    0 2px 8px rgba(0, 0, 0, 0.75),
    0 14px 28px rgba(0, 0, 0, 0.38);
}
.hero h1 .accent {
  font-style: italic;
  background: linear-gradient(
    110deg,
    var(--prism-2),
    var(--prism-1) 35%,
    var(--prism-6) 75%,
    var(--prism-5)
  );
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  padding-right: 0.05em;
  text-shadow: none;
}

.hero p.lede {
  font-size: 18px;
  line-height: 1.42;
  color: var(--cream-dim);
  max-width: 600px;
  margin: 0 auto 44px;
  text-shadow:
    0 2px 8px rgba(0, 0, 0, 0.8),
    0 10px 24px rgba(0, 0, 0, 0.32);
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 15px 26px;
  border-radius: 4px;
  font-size: 14px;
  letter-spacing: 0.005em;
  cursor: pointer;
  transition: all 0.25s ease;
  border: 1px solid transparent;
  font-family: "Geist", sans-serif;
  font-weight: 500;
}
.btn-primary {
  background: var(--cream);
  color: var(--bg);
}
.btn-primary:hover:not(:disabled) {
  background: #fff;
  transform: translateY(-1px);
  box-shadow: 0 12px 40px -8px rgba(255, 184, 77, 0.25);
}
.btn-primary:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}
.btn-primary .arrow {
  display: inline-block;
  transition: transform 0.25s;
  font-size: 16px;
}
.btn-primary:hover:not(:disabled) .arrow {
  transform: translateY(2px);
}

.hint-down {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 5;
  font-family: "JetBrains Mono", monospace;
  font-size: 10px;
  color: var(--muted);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  opacity: 0.7;
  animation: floaty 3s ease-in-out infinite;
}
@keyframes floaty {
  0%,
  100% {
    transform: translate(-50%, 0);
  }
  50% {
    transform: translate(-50%, 4px);
  }
}
.hint-down .line {
  width: 1px;
  height: 28px;
  background: var(--cream-dim);
  opacity: 0.5;
}

/* ---------------- PLAYGROUND ---------------- */
.playground {
  position: relative;
  height: 100vh;
  min-height: 700px;
  display: flex;
  flex-direction: column;
  padding: 56px 24px 28px;
  background: radial-gradient(
      ellipse 800px 400px at 50% 0%,
      rgba(255, 184, 77, 0.06),
      transparent 60%
    ),
    var(--bg);
  border-top: 1px solid var(--line);
}
.playground::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 1px;
  background: linear-gradient(
    90deg,
    transparent 0%,
    var(--prism-1) 14%,
    var(--prism-2) 28%,
    var(--prism-3) 42%,
    var(--prism-4) 56%,
    var(--prism-5) 70%,
    var(--prism-6) 84%,
    transparent 100%
  );
  opacity: 0.6;
}

/* ====== SELECT VIEW ====== */
.select-view {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  max-width: 1180px;
  margin: 0 auto;
  width: 100%;
  padding: 24px 12px;
}
.select-head {
  text-align: center;
  margin-bottom: 56px;
}
.select-head .eyebrow {
  font-family: "JetBrains Mono", monospace;
  font-size: 11px;
  color: var(--prism-2);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  margin-bottom: 14px;
  display: inline-flex;
  align-items: center;
  gap: 12px;
}
.select-head .eyebrow::before,
.select-head .eyebrow::after {
  content: "";
  width: 24px;
  height: 1px;
  background: var(--prism-2);
}
.select-head h2 {
  font-family: "Instrument Serif", serif;
  font-size: clamp(40px, 6vw, 72px);
  line-height: 1.02;
  letter-spacing: -0.025em;
  margin: 0 0 18px;
}
.select-head h2 .em {
  font-style: italic;
  color: var(--cream-dim);
}
.select-head p {
  font-size: 16px;
  line-height: 1.6;
  color: var(--cream-dim);
  max-width: 540px;
  margin: 0 auto;
}

.model-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-bottom: 40px;
}
@media (max-width: 880px) {
  .model-grid {
    grid-template-columns: 1fr;
  }
}
.model-card {
  position: relative;
  padding: 28px 26px;
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.25s ease;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  min-height: 260px;
}
.model-card:hover {
  border-color: var(--line-2);
  transform: translateY(-2px);
}
.model-card.selected {
  border-color: var(--cream-dim);
  background: var(--bg-3);
  box-shadow:
    0 0 0 1px var(--cream-dim),
    0 20px 60px -20px rgba(255, 184, 77, 0.12);
}
.model-card.disabled {
  cursor: not-allowed;
  opacity: 0.45;
  filter: grayscale(1);
}
.model-card.disabled:hover {
  border-color: var(--line);
  transform: none;
}
.mc-ribbon {
  position: absolute;
  top: 14px;
  left: 14px;
  padding: 4px 8px;
  border: 1px solid var(--line-2);
  border-radius: 4px;
  font-family: "JetBrains Mono", monospace;
  font-size: 9px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--cream-dim);
  background: var(--bg-3);
}
.model-card .check {
  position: absolute;
  top: 18px;
  right: 18px;
  width: 22px;
  height: 22px;
  border-radius: 999px;
  border: 1px solid var(--line-2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  color: var(--bg);
  background: transparent;
  transition: all 0.2s;
}
.model-card.selected .check {
  background: var(--cream);
  border-color: var(--cream);
}
.model-card .mc-size {
  font-family: "Instrument Serif", serif;
  font-size: 64px;
  line-height: 1;
  letter-spacing: -0.04em;
}
.model-card .mc-size .gb {
  font-family: "Geist", sans-serif;
  font-size: 16px;
  color: var(--muted);
  letter-spacing: 0.02em;
  margin-left: 8px;
}
.model-card .mc-name {
  margin-top: 14px;
  font-family: "JetBrains Mono", monospace;
  font-size: 12px;
  color: var(--cream-dim);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.model-card .mc-blurb {
  margin-top: 14px;
  font-family: "Instrument Serif", serif;
  font-style: italic;
  font-size: 18px;
  line-height: 1.4;
  color: var(--cream);
}
.model-card .mc-stats {
  margin-top: auto;
  padding-top: 22px;
  border-top: 1px dashed var(--line);
  display: grid;
  gap: 6px;
  font-family: "JetBrains Mono", monospace;
  font-size: 11px;
}
.model-card .mc-stat {
  display: flex;
  justify-content: space-between;
}
.model-card .mc-stat .k {
  color: var(--muted);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.model-card .mc-stat .v {
  color: var(--cream);
}

.select-actions {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
}
.select-actions .note {
  font-family: "JetBrains Mono", monospace;
  font-size: 10px;
  color: var(--muted);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

/* ====== LOADING VIEW ====== */
.load-view {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}
.load-card {
  width: 100%;
  max-width: 560px;
  text-align: center;
}
.load-card .label {
  font-family: "JetBrains Mono", monospace;
  font-size: 11px;
  color: var(--muted);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  margin-bottom: 12px;
}
.load-card h3 {
  font-family: "Instrument Serif", serif;
  font-size: 56px;
  line-height: 1;
  letter-spacing: -0.025em;
  margin: 0 0 38px;
}
.load-card h3 .em {
  font-style: italic;
  color: var(--cream-dim);
}
.progress {
  position: relative;
  height: 4px;
  background: var(--bg-3);
  border-radius: 2px;
  overflow: hidden;
  margin-bottom: 18px;
}
.progress .fill {
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  background: linear-gradient(
    90deg,
    var(--prism-4),
    var(--prism-3) 50%,
    var(--prism-2)
  );
  transition: width 0.12s linear;
  box-shadow: 0 0 14px rgba(255, 184, 77, 0.4);
}
.load-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: "JetBrains Mono", monospace;
  font-size: 11px;
  color: var(--cream-dim);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.load-row .pct {
  color: var(--cream);
  font-feature-settings: "tnum" 1;
}

/* ====== CHAT VIEW ====== */
.chat-view {
  flex: 1;
  display: flex;
  flex-direction: column;
  max-width: 880px;
  width: 100%;
  margin: 0 auto;
  min-height: 0;
}
.pg-header-bar {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
}
.pg-title {
  font-family: "Instrument Serif", serif;
  font-size: 32px;
  line-height: 1;
  letter-spacing: -0.025em;
  margin: 0;
}
.pg-title .em {
  font-style: italic;
  color: var(--cream-dim);
}
.pg-mini {
  display: flex;
  gap: 8px;
  font-family: "JetBrains Mono", monospace;
  font-size: 10px;
  color: var(--cream-dim);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  flex-wrap: wrap;
}
.pg-mini .chip {
  padding: 5px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--bg-2);
  display: inline-flex;
  align-items: center;
  gap: 7px;
}
.pg-mini .chip .dot {
  width: 6px;
  height: 6px;
  border-radius: 999px;
  background: var(--prism-3);
  box-shadow: 0 0 8px var(--prism-3);
}
.pg-mini .chip .k {
  color: var(--muted);
}

.chat {
  flex: 1;
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: 10px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: 0 30px 80px -20px rgba(0, 0, 0, 0.5);
  min-height: 0;
}
.chat-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
  border-bottom: 1px solid var(--line);
  background: var(--bg-3);
  flex: 0 0 auto;
}
.chat-bar .left {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: "JetBrains Mono", monospace;
  font-size: 11px;
  color: var(--cream-dim);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.chat-bar .dots {
  display: flex;
  gap: 6px;
}
.chat-bar .dots span {
  width: 9px;
  height: 9px;
  border-radius: 999px;
  background: var(--dim);
}
.chat-bar .dots span:first-child {
  background: var(--prism-1);
  opacity: 0.6;
}
.chat-bar .dots span:nth-child(2) {
  background: var(--prism-2);
  opacity: 0.6;
}
.chat-bar .dots span:nth-child(3) {
  background: var(--prism-3);
  opacity: 0.6;
}
.chat-bar .right {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  font-family: "JetBrains Mono", monospace;
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.chat-bar .right .tps-value {
  color: var(--cream);
  font-feature-settings: "tnum" 1;
  min-width: 28px;
  text-align: right;
}
.chat-bar .right .tps-label {
  color: var(--muted);
}

.messages {
  flex: 1;
  padding: 28px 26px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 22px;
  min-height: 0;
}
.messages::-webkit-scrollbar {
  width: 8px;
}
.messages::-webkit-scrollbar-track {
  background: transparent;
}
.messages::-webkit-scrollbar-thumb {
  background: var(--line-2);
  border-radius: 4px;
}

.message {
  display: flex;
  flex-direction: column;
  gap: 6px;
  max-width: 82%;
  animation: msgIn 0.35s cubic-bezier(0.2, 0.8, 0.2, 1);
}
@keyframes msgIn {
  from {
    opacity: 0;
    transform: translateY(6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
.message .role {
  font-family: "JetBrains Mono", monospace;
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}
.message.user {
  align-self: flex-end;
  align-items: flex-end;
}
.message.user .role {
  color: var(--cream-dim);
}
.message.assistant {
  align-self: flex-start;
  align-items: flex-start;
}
.message.assistant .role {
  background: linear-gradient(110deg, var(--prism-2), var(--prism-1) 60%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.bubble {
  padding: 14px 18px;
  border-radius: 8px;
  font-size: 15px;
  line-height: 1.45;
  overflow-wrap: break-word;
}
.message.user .bubble {
  background: var(--cream);
  color: var(--bg);
  border-bottom-right-radius: 2px;
  white-space: pre-wrap;
}
.message.assistant .bubble {
  background: transparent;
  color: var(--cream);
  border: 1px solid var(--line);
  border-bottom-left-radius: 2px;
  font-family: "Geist", "Helvetica Neue", sans-serif;
  font-size: 15px;
  line-height: 1.45;
  letter-spacing: -0.005em;
  white-space: normal;
}
.message.assistant .bubble .streamdown-content {
  overflow-wrap: anywhere;
}
.message.assistant .bubble .streamdown-content > :first-child {
  margin-top: 0;
}
.message.assistant .bubble .streamdown-content > :last-child {
  margin-bottom: 0;
}
.message.assistant .bubble .streamdown-content p,
.message.assistant .bubble .streamdown-content ul,
.message.assistant .bubble .streamdown-content ol,
.message.assistant .bubble .streamdown-content blockquote,
.message.assistant .bubble .streamdown-content pre,
.message.assistant .bubble .streamdown-content table,
.message.assistant .bubble .streamdown-content hr {
  margin: 0 0 0.7em;
}
.message.assistant .bubble .streamdown-content ul,
.message.assistant .bubble .streamdown-content ol {
  padding-left: 1.3em;
}
.message.assistant .bubble .streamdown-content li + li {
  margin-top: 0.18em;
}
.message.assistant .bubble .streamdown-content a {
  color: var(--prism-2);
}
.message.assistant .bubble .streamdown-content strong {
  color: #fff5df;
}
.message.assistant .bubble .streamdown-content blockquote {
  border-left: 2px solid var(--line-2);
  padding-left: 14px;
  color: var(--cream-dim);
}
.message.assistant .bubble .streamdown-content :not(pre) > code {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.92em;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 0.12em 0.35em;
}
.message.assistant .bubble .streamdown-content pre {
  overflow-x: auto;
  padding: 14px 16px;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 6px;
}
.message.assistant .bubble .streamdown-content pre code {
  font-family: "JetBrains Mono", monospace;
  font-size: 13px;
  line-height: 1.5;
}
.message.assistant .bubble .streamdown-content table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}
.message.assistant .bubble .streamdown-content th,
.message.assistant .bubble .streamdown-content td {
  border: 1px solid var(--line);
  padding: 8px 10px;
  text-align: left;
  vertical-align: top;
}
.message.assistant .bubble .streamdown-content th {
  color: #fff5df;
  background: rgba(255, 255, 255, 0.03);
}
.message.assistant .bubble .streamdown-content .katex-display {
  margin: 0.95em 0;
  overflow-x: auto;
  overflow-y: hidden;
}

.cursor {
  display: inline-block;
  width: 8px;
  height: 18px;
  background: var(--prism-2);
  margin-left: 2px;
  vertical-align: text-bottom;
  animation: blink 0.85s step-end infinite;
  box-shadow: 0 0 8px var(--prism-2);
}
@keyframes blink {
  50% {
    opacity: 0;
  }
}

.thinking {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  padding: 14px 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  border-bottom-left-radius: 2px;
  font-family: "JetBrains Mono", monospace;
  font-size: 11px;
  color: var(--muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.thinking .bits {
  display: inline-flex;
  gap: 4px;
}
.thinking .bits span {
  font-family: "JetBrains Mono", monospace;
  color: var(--cream);
  opacity: 0.4;
  animation: bitDance 0.6s ease-in-out infinite;
}
.thinking .bits span:nth-child(2) {
  animation-delay: 0.1s;
}
.thinking .bits span:nth-child(3) {
  animation-delay: 0.2s;
}
.thinking .bits span:nth-child(4) {
  animation-delay: 0.3s;
}
.thinking .bits span:nth-child(5) {
  animation-delay: 0.4s;
}
@keyframes bitDance {
  0%,
  100% {
    opacity: 0.3;
    transform: translateY(0);
  }
  50% {
    opacity: 1;
    transform: translateY(-2px);
    color: var(--prism-2);
  }
}

.composer {
  padding: 16px;
  border-top: 1px solid var(--line);
  background: var(--bg-3);
  display: flex;
  gap: 12px;
  align-items: flex-end;
  flex: 0 0 auto;
}
.composer textarea {
  flex: 1;
  background: var(--bg);
  color: var(--cream);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 12px 14px;
  font-family: "Geist", sans-serif;
  font-size: 14px;
  line-height: 1.5;
  resize: none;
  outline: none;
  min-height: 44px;
  max-height: 140px;
  transition: border-color 0.2s;
}
.composer textarea:focus {
  border-color: var(--cream-dim);
}
.composer textarea::placeholder {
  color: var(--muted);
}

.send {
  background: var(--cream);
  color: var(--bg);
  border: none;
  border-radius: 6px;
  padding: 0 18px;
  height: 44px;
  font-family: "Geist", sans-serif;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: all 0.2s;
}
.send .send-icon {
  width: 22px;
  height: 22px;
  border-radius: 999px;
  background: rgba(12, 11, 10, 0.08);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
}
.send .send-icon svg {
  width: 14px;
  height: 14px;
  display: block;
}
.send:hover:not(:disabled) {
  background: #fff;
}
.send:disabled {
  background: var(--line-2);
  color: var(--muted);
  cursor: not-allowed;
}
.send:disabled .send-icon {
  background: rgba(255, 255, 255, 0.06);
}