:root {
  --bg: #050716;
  --bg-alt: #0b1024;
  --accent: #ff7af5;
  --accent-soft: rgba(255, 122, 245, 0.25);
  --accent-2: #7af5ff;
  --accent-3: #ffd27a;
  --text: #f5f7ff;
  --text-soft: #a6b0d8;
  --border-subtle: rgba(255, 255, 255, 0.06);
  --radius-lg: 18px;
  --radius-md: 12px;
  --shadow-soft: 0 24px 60px rgba(0, 0, 0, 0.7);
  --font-sans: system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Text", sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  height: 100%;
  font-family: var(--font-sans);
  color: var(--text);
  background: radial-gradient(circle at top, #1a1f3b 0, #050716 55%, #02030a 100%);
  overflow: hidden;
}

/* Starfield canvas */

#starfield {
  position: fixed;
  inset: 0;
  z-index: 0;
}

/* App shell */

.app-shell {
  position: relative;
  z-index: 1;
  max-width: 1120px;
  margin: 32px auto;
  padding: 24px 24px 18px;
  background: linear-gradient(145deg, rgba(7, 10, 30, 0.96), rgba(5, 7, 22, 0.98));
  border-radius: 24px;
  border: 1px solid rgba(255, 255, 255, 0.06);
  box-shadow: var(--shadow-soft);
  backdrop-filter: blur(18px);
  display: flex;
  flex-direction: column;
  gap: 18px;
}

/* Header */

.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
}

.gemma-orb {
  width: 32px;
  height: 32px;
  border-radius: 999px;
  background: conic-gradient(
    from 180deg,
    var(--accent),
    var(--accent-2),
    var(--accent-3),
    var(--accent)
  );
  box-shadow:
    0 0 18px rgba(255, 122, 245, 0.7),
    0 0 40px rgba(122, 245, 255, 0.4);
  position: relative;
  overflow: hidden;
}

.gemma-orb::after {
  content: "";
  position: absolute;
  inset: 4px;
  border-radius: inherit;
  background: radial-gradient(circle at 30% 20%, #ffffff, transparent 55%);
  opacity: 0.7;
}

.logo-text h1 {
  margin: 0;
  font-size: 1.25rem;
  letter-spacing: 0.04em;
}

.logo-text p {
  margin: 0;
  font-size: 0.8rem;
  color: var(--text-soft);
}

.header-meta {
  display: flex;
  align-items: center;
  gap: 8px;
}

/* Chips */

.chip {
  border-radius: 999px;
  border: 1px solid var(--border-subtle);
  padding: 4px 10px;
  font-size: 0.75rem;
  color: var(--text-soft);
  background: rgba(10, 14, 40, 0.9);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.chip-variant {
  border-color: rgba(122, 245, 255, 0.4);
  color: #dffcff;
}

.chip-status {
  border-color: rgba(255, 210, 122, 0.4);
}

.chip-prompt {
  cursor: pointer;
  transition: background 0.2s ease, transform 0.1s ease, border-color 0.2s ease;
}

.chip-prompt:hover {
  background: rgba(255, 122, 245, 0.08);
  border-color: rgba(255, 122, 245, 0.5);
  transform: translateY(-1px);
}

/* Main layout */

.app-main {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1.1fr);
  gap: 18px;
}

.panel {
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-subtle);
  background: radial-gradient(circle at top left, rgba(255, 122, 245, 0.08), transparent 55%),
    radial-gradient(circle at bottom right, rgba(122, 245, 255, 0.06), transparent 55%),
    rgba(7, 10, 30, 0.9);
  padding: 16px 16px 14px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.panel h2 {
  margin: 0;
  font-size: 1rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-soft);
}

.subtitle {
  margin: 0;
  font-size: 0.8rem;
  color: var(--text-soft);
}

/* Left panel */

.field-label {
  margin-top: 6px;
  font-size: 0.8rem;
  color: var(--text-soft);
}

.prompt-input {
  margin-top: 4px;
  width: 100%;
  resize: vertical;
  min-height: 120px;
  max-height: 260px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(5, 7, 22, 0.9);
  color: var(--text);
  padding: 10px 11px;
  font-size: 0.9rem;
  line-height: 1.4;
  outline: none;
  box-shadow: inset 0 0 0 1px transparent;
  transition: border 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.prompt-input:focus {
  border-color: rgba(255, 122, 245, 0.7);
  box-shadow: 0 0 0 1px rgba(255, 122, 245, 0.4);
  background: rgba(5, 7, 22, 0.98);
}

.controls-row {
  margin-top: 8px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.toggle-group {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.toggle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
}

.toggle input {
  display: none;
}

.toggle-slider {
  width: 34px;
  height: 18px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.12);
  position: relative;
  transition: background 0.2s ease;
}

.toggle-slider::after {
  content: "";
  position: absolute;
  top: 2px;
  left: 3px;
  width: 14px;
  height: 14px;
  border-radius: 999px;
  background: #ffffff;
  box-shadow: 0 0 8px rgba(0, 0, 0, 0.4);
  transition: transform 0.2s ease;
}

.toggle input:checked + .toggle-slider {
  background: var(--accent-soft);
}

.toggle input:checked + .toggle-slider::after {
  transform: translateX(14px);
}

.toggle-label {
  font-size: 0.8rem;
  color: var(--text);
}

.hint {
  font-size: 0.7rem;
  color: var(--text-soft);
}

.btn-primary {
  position: relative;
  border: none;
  border-radius: 999px;
  padding: 8px 18px;
  font-size: 0.85rem;
  font-weight: 500;
  color: #050716;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  cursor: pointer;
  overflow: hidden;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  box-shadow:
    0 0 18px rgba(255, 122, 245, 0.6),
    0 0 30px rgba(122, 245, 255, 0.4);
  transition: transform 0.1s ease, box-shadow 0.2s ease, filter 0.2s ease;
}

.btn-primary:hover {
  transform: translateY(-1px);
  filter: brightness(1.05);
}

.btn-primary:active {
  transform: translateY(0);
  box-shadow:
    0 0 10px rgba(255, 122, 245, 0.5),
    0 0 18px rgba(122, 245, 255, 0.3);
}

.btn-primary .btn-glow {
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 0 0, rgba(255, 255, 255, 0.4), transparent 55%);
  mix-blend-mode: screen;
  opacity: 0.6;
  pointer-events: none;
}

/* Prompt chips row */

.chips-row {
  margin-top: 8px;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

/* Right panel */

.response-container {
  margin-top: 4px;
  flex: 1;
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: radial-gradient(circle at top, rgba(122, 245, 255, 0.06), transparent 55%),
    rgba(5, 7, 22, 0.96);
  padding: 10px 11px;
  font-size: 0.86rem;
  line-height: 1.5;
  overflow: auto;
  max-height: 320px;
}

.response-container pre {
  margin: 0;
  white-space: pre-wrap;
  word-wrap: break-word;
  font-family: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono",
    "Courier New", monospace;
  font-size: 0.8rem;
}

.response-container .placeholder {
  text-align: center;
  color: var(--text-soft);
}

.placeholder-sub {
  font-size: 0.78rem;
  margin-top: 4px;
}

/* Streaming effect */

.token {
  opacity: 0;
  animation: fadeInToken 0.04s forwards;
}

@keyframes fadeInToken {
  to {
    opacity: 1;
  }
}

/* Footer */

.app-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.75rem;
  color: var(--text-soft);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding-top: 8px;
}

.app-footer .dot {
  opacity: 0.5;
}

/* Responsive */

@media (max-width: 900px) {
  .app-shell {
    margin: 16px;
    padding: 18px 14px 12px;
  }

  .app-main {
    grid-template-columns: minmax(0, 1fr);
  }

  .app-footer {
    flex-direction: column;
    gap: 4px;
    align-items: flex-start;
  }
}