:root {
  --bg: #060909;
  --panel: rgba(8, 14, 14, 0.76);
  --panel-border: rgba(168, 255, 222, 0.18);
  --panel-strong: rgba(168, 255, 222, 0.3);
  --text: #ecfff6;
  --muted: #97b8ad;
  --accent: #8cffca;
  --accent-strong: #d1ff75;
  --danger: #ff8f7a;
  --shadow: 0 18px 60px rgba(0, 0, 0, 0.42);
  --page-width: 1240px;
  --terminal-font: "JetBrains Mono", "IBM Plex Mono", "SF Mono", Menlo, Consolas, monospace;
  --display-font: "Sora", "Avenir Next", "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  background:
    radial-gradient(circle at top left, rgba(120, 255, 208, 0.15), transparent 28rem),
    radial-gradient(circle at 85% 12%, rgba(209, 255, 117, 0.14), transparent 24rem),
    linear-gradient(180deg, #0a0f10 0%, #060909 48%, #050707 100%);
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  font-family: var(--terminal-font);
  line-height: 1.5;
  background:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 2.5rem 2.5rem;
}

a {
  color: var(--accent);
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.18em;
}

code,
textarea,
input,
select,
button {
  font: inherit;
}

.page-shell {
  width: min(calc(100% - 2rem), var(--page-width));
  margin: 0 auto;
  padding: 1.25rem 0 3rem;
}

.panel {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--panel-border);
  border-radius: 1.2rem;
  background: var(--panel);
  box-shadow: var(--shadow);
  backdrop-filter: blur(12px);
}

.panel::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(135deg, rgba(140, 255, 202, 0.08), transparent 45%),
    linear-gradient(315deg, rgba(209, 255, 117, 0.05), transparent 35%);
}

.hero {
  padding: 1.4rem;
  margin-bottom: 1rem;
}

.eyebrow,
.panel-label,
.state-label,
.panel-meta,
.footer,
.status,
.panel-note {
  color: var(--muted);
  font-size: 0.9rem;
}

.hero-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: minmax(0, 1.5fr) minmax(18rem, 1fr);
  align-items: end;
}

h1,
h2 {
  margin: 0;
  font-family: var(--display-font);
  letter-spacing: -0.04em;
}

h1 {
  font-size: clamp(2.4rem, 7vw, 4.8rem);
  line-height: 0.96;
  max-width: 12ch;
}

h2 {
  font-size: clamp(1.4rem, 3vw, 2rem);
}

.lede {
  max-width: 60ch;
  margin: 1rem 0 0;
  font-size: 1.02rem;
}

.lede-subtle {
  max-width: 60ch;
  margin: 0.85rem 0 0;
  color: var(--muted);
}

.hero-terminal {
  display: grid;
  gap: 0.6rem;
  padding: 1rem;
  border: 1px solid var(--panel-border);
  border-radius: 1rem;
  background:
    linear-gradient(180deg, rgba(5, 8, 8, 0.88), rgba(7, 11, 11, 0.8));
}

.terminal-line {
  display: flex;
  gap: 0.6rem;
  align-items: baseline;
}

.terminal-prompt {
  color: var(--accent-strong);
}

.hero-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.1rem;
}

.hero-links a,
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.75rem;
  padding: 0.65rem 1rem;
  border: 1px solid var(--panel-strong);
  border-radius: 999px;
  background: rgba(12, 22, 22, 0.82);
  color: var(--text);
  text-decoration: none;
  transition:
    transform 120ms ease,
    border-color 120ms ease,
    background 120ms ease;
}

.hero-links a:hover,
.button:hover {
  transform: translateY(-1px);
  border-color: var(--accent);
  background: rgba(15, 30, 28, 0.92);
}

.button {
  cursor: pointer;
}

.button:disabled {
  cursor: wait;
  opacity: 0.6;
}

.button-secondary {
  background: rgba(8, 14, 14, 0.85);
}

.main-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: minmax(0, 1.2fr) minmax(18rem, 0.9fr);
}

.panel-preview,
.panel-controls,
.panel-api,
.panel-notes {
  padding: 1.25rem;
}

.panel-api,
.panel-notes {
  grid-column: 1 / -1;
}

.panel-header {
  display: flex;
  gap: 1rem;
  align-items: end;
  justify-content: space-between;
  margin-bottom: 1rem;
}

.panel-meta {
  margin: 0;
  text-align: right;
}

.preview-toolbar {
  display: grid;
  gap: 0.75rem;
  grid-template-columns: auto auto minmax(0, 1fr);
  align-items: center;
  margin-bottom: 1rem;
}

.status {
  margin: 0;
  min-height: 2.75rem;
  min-width: 0;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  padding: 0 1rem;
  border: 1px solid rgba(168, 255, 222, 0.14);
  border-radius: 999px;
  background: rgba(6, 10, 10, 0.72);
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}

.status.error {
  color: var(--danger);
}

.status.ready {
  color: var(--accent);
}

.preview-frame-wrap {
  position: relative;
  min-height: 18rem;
  border: 1px solid var(--panel-border);
  border-radius: 1rem;
  background:
    radial-gradient(circle at top, rgba(129, 220, 190, 0.16), transparent 45%),
    linear-gradient(180deg, rgba(5, 8, 8, 0.95), rgba(7, 10, 10, 0.92));
}

.preview-grid-backdrop {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 1.5rem 1.5rem;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.95), transparent 88%);
}

.preview-scroll {
  position: relative;
  overflow: auto;
  padding: 1rem;
}

#preview-frame {
  display: block;
  border: 0;
  border-radius: 0.85rem;
  background:
    linear-gradient(45deg, rgba(255, 255, 255, 0.04) 25%, transparent 25%),
    linear-gradient(-45deg, rgba(255, 255, 255, 0.04) 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, rgba(255, 255, 255, 0.04) 75%),
    linear-gradient(-45deg, transparent 75%, rgba(255, 255, 255, 0.04) 75%);
  background-position: 0 0, 0 0.75rem, 0.75rem -0.75rem, -0.75rem 0;
  background-size: 1.5rem 1.5rem;
  box-shadow: 0 14px 40px rgba(0, 0, 0, 0.4);
}

.preview-empty {
  position: absolute;
  inset: auto 1rem 1rem 1rem;
  padding: 0.8rem 1rem;
  border: 1px dashed var(--panel-border);
  border-radius: 0.8rem;
  background: rgba(7, 11, 11, 0.82);
}

.panel-note {
  margin: 0.8rem 0 0;
}

.control-grid {
  display: grid;
  gap: 0.85rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.field {
  display: grid;
  gap: 0.45rem;
}

.field-wide {
  grid-column: 1 / -1;
}

.field span {
  color: var(--muted);
  font-size: 0.9rem;
}

.field input,
.field select,
.field textarea,
#api-url {
  width: 100%;
  border: 1px solid rgba(168, 255, 222, 0.2);
  border-radius: 0.8rem;
  padding: 0.8rem 0.9rem;
  color: var(--text);
  background: rgba(6, 10, 10, 0.92);
  resize: vertical;
}

.field input:focus,
.field select:focus,
.field textarea:focus,
#api-url:focus {
  outline: 1px solid var(--accent);
  border-color: var(--accent);
}

.state-grid,
.note-grid {
  display: grid;
  gap: 0.85rem;
}

.state-grid {
  margin-top: 1rem;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.state-card,
.api-example {
  padding: 0.9rem 1rem;
  border: 1px solid rgba(168, 255, 222, 0.14);
  border-radius: 0.9rem;
  background: rgba(6, 10, 10, 0.72);
}

.state-card code,
.api-example code {
  display: block;
  margin-top: 0.35rem;
  white-space: pre-wrap;
  word-break: break-word;
}

.api-example {
  display: grid;
  gap: 0.9rem;
}

.api-example-header {
  display: flex;
  gap: 0.75rem;
  align-items: end;
  justify-content: space-between;
}

.api-output-status {
  margin: 0;
  min-height: 2.25rem;
  display: inline-flex;
  align-items: center;
  justify-content: flex-end;
  padding: 0.2rem 0.85rem;
  border: 1px solid rgba(168, 255, 222, 0.14);
  border-radius: 999px;
  background: rgba(5, 8, 8, 0.72);
  text-align: right;
}

.api-output-status.error {
  color: var(--danger);
}

.api-output-status.ready {
  color: var(--accent);
}

.api-output-frame {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 18rem;
  padding: 1rem;
  border: 1px solid rgba(168, 255, 222, 0.14);
  border-radius: 0.9rem;
  background:
    linear-gradient(45deg, rgba(255, 255, 255, 0.04) 25%, transparent 25%),
    linear-gradient(-45deg, rgba(255, 255, 255, 0.04) 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, rgba(255, 255, 255, 0.04) 75%),
    linear-gradient(-45deg, transparent 75%, rgba(255, 255, 255, 0.04) 75%);
  background-position: 0 0, 0 0.75rem, 0.75rem -0.75rem, -0.75rem 0;
  background-size: 1.5rem 1.5rem;
}

#api-output-image {
  display: block;
  width: min(100%, 32rem);
  max-width: 100%;
  height: auto;
  border-radius: 0.75rem;
  box-shadow: 0 14px 40px rgba(0, 0, 0, 0.35);
  object-fit: contain;
  background: rgba(7, 11, 11, 0.9);
}

.panel-api .field {
  margin-bottom: 1rem;
}

#api-url {
  min-height: 7.5rem;
}

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

.footer {
  display: flex;
  gap: 0.75rem;
  justify-content: space-between;
  align-items: center;
  margin-top: 1rem;
  padding: 0 0.25rem;
}

.footer p {
  margin: 0;
}

.noscript-banner {
  position: fixed;
  left: 1rem;
  right: 1rem;
  bottom: 1rem;
  padding: 0.9rem 1rem;
  border: 1px solid rgba(255, 143, 122, 0.35);
  border-radius: 0.8rem;
  background: rgba(34, 10, 10, 0.92);
  color: #ffd9d2;
  box-shadow: var(--shadow);
}

@media (max-width: 960px) {
  .hero-grid,
  .main-grid,
  .note-grid,
  .state-grid {
    grid-template-columns: 1fr;
  }

  .panel-meta,
  .footer {
    text-align: left;
  }

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

  .preview-toolbar {
    grid-template-columns: auto auto;
  }

  .status {
    grid-column: 1 / -1;
    justify-content: flex-start;
  }

  .api-example-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .api-output-status {
    justify-content: flex-start;
    text-align: left;
  }
}

@media (max-width: 640px) {
  .page-shell {
    width: min(calc(100% - 1rem), var(--page-width));
    padding-top: 0.5rem;
  }

  .hero,
  .panel-preview,
  .panel-controls,
  .panel-api,
  .panel-notes {
    padding: 1rem;
  }

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

  .field-wide {
    grid-column: auto;
  }
}