:root {
  --ink: #142a28;
  --ink-soft: #3a4a48;
  --mist: #e7f0ee;
  --foam: #f4f7f5;
  --pine: #0f4c45;
  --teal: #1f7a6e;
  --flare: #d97706;
  --line: rgba(15, 76, 69, 0.14);
  --shadow: 0 24px 60px rgba(20, 42, 40, 0.12);
  --font-display: "Fraunces", Georgia, serif;
  --font-body: "Sora", sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, monospace;
}

* {
  box-sizing: border-box;
}

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

body {
  color: var(--ink);
  font-family: var(--font-body);
  background: var(--foam);
  line-height: 1.5;
}

.atmosphere {
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(900px 480px at 12% -10%, rgba(31, 122, 110, 0.28), transparent 60%),
    radial-gradient(700px 420px at 90% 8%, rgba(217, 119, 6, 0.16), transparent 55%),
    linear-gradient(165deg, #dfece9 0%, #f5f3ec 42%, #e8f2f4 100%);
  animation: drift 18s ease-in-out infinite alternate;
}

.atmosphere::after {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0.22;
  background-image:
    linear-gradient(rgba(15, 76, 69, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(15, 76, 69, 0.08) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(circle at 40% 20%, black 20%, transparent 75%);
}

@keyframes drift {
  from { transform: scale(1) translate3d(0, 0, 0); }
  to { transform: scale(1.04) translate3d(-1.5%, 1%, 0); }
}

.shell {
  width: min(920px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 4.5rem 0 5rem;
}

.hero {
  animation: rise 0.9s cubic-bezier(0.2, 0.8, 0.2, 1) both;
}

@keyframes rise {
  from { opacity: 0; transform: translateY(18px); }
  to { opacity: 1; transform: none; }
}

.brand {
  margin: 0 0 1.1rem;
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 8vw, 4.6rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 0.95;
  color: var(--pine);
  animation: brandIn 1.1s cubic-bezier(0.2, 0.8, 0.2, 1) both;
}

@keyframes brandIn {
  from { opacity: 0; letter-spacing: 0.08em; filter: blur(4px); }
  to { opacity: 1; letter-spacing: -0.03em; filter: none; }
}

.headline {
  margin: 0 0 0.85rem;
  max-width: 18ch;
  font-family: var(--font-display);
  font-size: clamp(1.55rem, 3.4vw, 2.15rem);
  font-weight: 500;
  line-height: 1.2;
  color: var(--ink);
}

.lede {
  margin: 0 0 1.75rem;
  max-width: 54ch;
  color: var(--ink-soft);
  font-size: 1.02rem;
}

.compose {
  display: grid;
  gap: 0.9rem;
  animation: rise 1.05s 0.08s cubic-bezier(0.2, 0.8, 0.2, 1) both;
}

.field {
  display: grid;
  gap: 0.35rem;
}

.field span,
.controls label {
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--pine);
}

input[type="text"],
input[type="number"],
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 0;
  background: rgba(255, 255, 255, 0.72);
  color: var(--ink);
  font: inherit;
  padding: 0.85rem 0.95rem;
  outline: none;
  transition: border-color 0.2s ease, background 0.2s ease, transform 0.2s ease;
}

textarea {
  resize: vertical;
  min-height: 5.5rem;
  font-family: var(--font-mono);
  font-size: 0.9rem;
}

input:focus,
textarea:focus {
  border-color: var(--teal);
  background: rgba(255, 255, 255, 0.92);
}

.controls {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: end;
}

.controls label {
  display: grid;
  gap: 0.3rem;
  min-width: 5.5rem;
}

.controls input {
  width: 5.8rem;
  padding: 0.7rem 0.75rem;
}

.cta-group {
  margin-left: auto;
  display: flex;
  gap: 0.55rem;
  align-items: stretch;
}

.cta {
  border: 0;
  background: var(--pine);
  color: #f7fffc;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 1rem;
  padding: 0.9rem 1.5rem;
  cursor: pointer;
  transition: transform 0.18s ease, background 0.18s ease, box-shadow 0.18s ease, opacity 0.18s ease;
  box-shadow: 0 10px 24px rgba(15, 76, 69, 0.22);
}

.cta:hover:not(:disabled) {
  background: var(--teal);
  transform: translateY(-1px);
}

.cta:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.cta-stop {
  background: transparent;
  color: var(--pine);
  border: 1px solid var(--pine);
  box-shadow: none;
}

.cta-stop:hover:not(:disabled) {
  background: rgba(180, 35, 24, 0.08);
  color: #b42318;
  border-color: #b42318;
  transform: translateY(-1px);
}

.cta-stop:not(:disabled) {
  animation: stopReady 1.4s ease-in-out infinite;
}

@keyframes stopReady {
  0%, 100% { border-color: var(--pine); }
  50% { border-color: #b42318; }
}

.provider-line {
  margin: 1rem 0 0;
  font-size: 0.86rem;
  color: var(--ink-soft);
}

.provider-line strong {
  color: var(--pine);
  font-weight: 600;
}

.stream-panel,
.results,
.history {
  margin-top: 2.75rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--line);
  animation: rise 0.55s ease both;
}

.phase-row {
  display: flex;
  gap: 0.75rem;
  align-items: center;
  margin-bottom: 0.85rem;
}

.phase-pill {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--pine);
  background: rgba(31, 122, 110, 0.12);
  padding: 0.28rem 0.55rem;
  position: relative;
}

.phase-pill.live::after {
  content: "";
  display: inline-block;
  width: 0.45rem;
  height: 0.45rem;
  margin-left: 0.45rem;
  border-radius: 50%;
  background: var(--flare);
  animation: pulse 1.1s ease-in-out infinite;
  vertical-align: middle;
}

@keyframes pulse {
  0%, 100% { opacity: 0.35; transform: scale(0.85); }
  50% { opacity: 1; transform: scale(1.15); }
}

.status-text {
  color: var(--ink-soft);
  font-size: 0.92rem;
}

.token-stream {
  margin: 0 0 1rem;
  min-height: 4.5rem;
  max-height: 12rem;
  overflow: auto;
  padding: 1rem;
  background: rgba(20, 42, 40, 0.92);
  color: #d7ebe6;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  white-space: pre-wrap;
  word-break: break-word;
}

.event-log,
.runs-list,
#ranked-list,
#trends-list,
#export-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.event-log li,
.runs-list li,
#ranked-list li,
#trends-list li,
#export-list li {
  padding: 0.7rem 0;
  border-bottom: 1px solid var(--line);
  font-size: 0.92rem;
  animation: slideIn 0.35s ease both;
}

@keyframes slideIn {
  from { opacity: 0; transform: translateX(-8px); }
  to { opacity: 1; transform: none; }
}

.event-log .meta,
.mono {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--ink-soft);
}

.event-ok { color: var(--teal); }
.event-bad { color: #b42318; }

h2 {
  margin: 0 0 0.8rem;
  font-family: var(--font-display);
  font-size: 1.45rem;
  font-weight: 500;
  color: var(--pine);
}

.result-block + .result-block {
  margin-top: 1.75rem;
}

.summary {
  color: var(--ink-soft);
  max-width: 65ch;
}

#ranked-list li a {
  color: var(--pine);
  text-decoration: none;
  font-weight: 500;
}

#ranked-list li a:hover {
  text-decoration: underline;
}

.score {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--flare);
  margin-right: 0.5rem;
}

.export-meta {
  color: var(--ink-soft);
  font-size: 0.9rem;
}

#export-list code {
  font-family: var(--font-mono);
  font-size: 0.82rem;
}

#export-list li {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem 1rem;
  align-items: baseline;
}

.download-link {
  color: var(--teal);
  font-weight: 600;
  font-size: 0.9rem;
  text-decoration: none;
  border-bottom: 1px solid rgba(31, 122, 110, 0.35);
}

.download-link:hover {
  color: var(--pine);
  border-bottom-color: var(--pine);
}

.history h2 {
  margin-bottom: 0.6rem;
}

.runs-list button {
  border: 0;
  background: transparent;
  color: var(--pine);
  font: inherit;
  padding: 0;
  cursor: pointer;
  text-align: left;
}

.runs-list button:hover {
  text-decoration: underline;
}

@media (max-width: 640px) {
  .shell {
    padding-top: 2.5rem;
  }

  .cta-group {
    margin-left: 0;
    width: 100%;
  }

  .cta,
  .cta-stop {
    flex: 1;
  }

  .controls {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
  }

  .controls label input {
    width: 100%;
  }

  .controls .cta-group {
    grid-column: 1 / -1;
  }
}