:root {
  color-scheme: light;
  --bg: #f4f0e8;
  --panel: #fffdf8;
  --ink: #1e1b18;
  --muted: #6b6257;
  --accent: #d56f36;
  --accent-strong: #a94f22;
  --line: #ded3c5;
  --shadow: 0 20px 60px rgba(80, 55, 28, 0.12);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: Georgia, "Times New Roman", serif;
  color: var(--ink);
  background:
    radial-gradient(circle at top left, rgba(213, 111, 54, 0.18), transparent 28%),
    linear-gradient(180deg, #f8f2e8 0%, var(--bg) 100%);
}

.app-shell {
  width: min(960px, calc(100% - 32px));
  margin: 0 auto;
  padding: 40px 0 56px;
}

.hero {
  margin-bottom: 24px;
}

.eyebrow {
  margin: 0 0 8px;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.75rem;
  color: var(--accent-strong);
}

h1,
h2 {
  margin: 0;
  font-weight: 600;
}

h1 {
  font-size: clamp(2.3rem, 5vw, 4.4rem);
  line-height: 0.95;
}

.intro {
  max-width: 620px;
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 1.05rem;
  line-height: 1.6;
}

.scanner-card,
.result-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 28px;
  box-shadow: var(--shadow);
}

.scanner-card {
  padding: 18px;
}

.video-frame {
  position: relative;
  overflow: hidden;
  border-radius: 20px;
  background: #1a1612;
  aspect-ratio: 16 / 10;
}

video,
canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.scan-line {
  position: absolute;
  left: 8%;
  right: 8%;
  top: 18%;
  height: 2px;
  background: linear-gradient(90deg, transparent, #74ff87, transparent);
  box-shadow: 0 0 24px rgba(116, 255, 135, 0.9);
  animation: sweep 2.6s ease-in-out infinite;
}

.status-badge {
  position: absolute;
  left: 16px;
  bottom: 16px;
  padding: 10px 14px;
  border-radius: 999px;
  background: rgba(20, 20, 20, 0.72);
  color: #fff;
  font-size: 0.92rem;
}

.controls,
.result-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.controls {
  margin-top: 16px;
}

.compact-controls {
  justify-content: flex-start;
}

button {
  border: 0;
  border-radius: 999px;
  padding: 13px 18px;
  font: inherit;
  font-size: 0.98rem;
  cursor: pointer;
  background: var(--accent);
  color: #fff;
  transition: transform 140ms ease, background 140ms ease, opacity 140ms ease;
}

button:hover:not(:disabled) {
  transform: translateY(-1px);
  background: var(--accent-strong);
}

button:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

button.secondary {
  background: #efe4d7;
  color: var(--ink);
}

.result-card {
  margin-top: 24px;
  padding: 20px;
}

.field-label {
  display: block;
  margin-top: 16px;
  font-size: 0.95rem;
  font-weight: 600;
}

.pair-list-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.pair-list {
  display: grid;
  gap: 14px;
  margin-top: 12px;
}

.pair-card {
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: #fbf7f0;
}

.pair-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.pair-index {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--muted);
}

.pair-remove {
  padding: 10px 14px;
}

.text-input {
  width: 100%;
  margin-top: 8px;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: #fbf7f0;
  color: var(--ink);
  font: inherit;
}

.text-area {
  min-height: 120px;
  resize: vertical;
}

.compact-text-area {
  min-height: 88px;
}

.select-input {
  appearance: none;
}

.helper-text {
  margin: 12px 0 0;
  color: var(--muted);
  line-height: 1.5;
}

.response-summary {
  display: grid;
  gap: 12px;
  margin-top: 16px;
}

.response-summary.empty {
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: #fbf7f0;
  color: var(--muted);
}

.response-card {
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: #fbf7f0;
}

.response-card.success {
  border-color: #bfe2c7;
  background: #f3fbf5;
}

.response-card.error {
  border-color: #efc2c2;
  background: #fff5f5;
}

.response-card.pending {
  border-color: #f1d693;
  background: #fffaf0;
}

.response-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.response-title {
  font-size: 0.98rem;
  font-weight: 600;
}

.response-badge {
  padding: 7px 10px;
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 700;
}

.response-badge.success {
  background: #dff5e3;
  color: #1f6b34;
}

.response-badge.error {
  background: #f9dddd;
  color: #8f2020;
}

.response-badge.pending {
  background: #fde7bb;
  color: #6f4a00;
}

.response-meta {
  margin-top: 10px;
  color: var(--muted);
  line-height: 1.5;
}

.response-body {
  margin-top: 12px;
  padding: 14px;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: #fffdf8;
  white-space: pre-wrap;
  word-break: break-word;
  font-family: "Cascadia Code", Consolas, monospace;
  font-size: 0.9rem;
  line-height: 1.5;
}

.result-text {
  margin: 16px 0 0;
  min-height: 120px;
  padding: 18px;
  border-radius: 18px;
  background: #fbf7f0;
  border: 1px solid var(--line);
  color: var(--ink);
  white-space: pre-wrap;
  word-break: break-word;
  line-height: 1.55;
  font-family: "Cascadia Code", Consolas, monospace;
  font-size: 0.95rem;
}

.request-state {
  padding: 8px 12px;
  border-radius: 999px;
  font-size: 0.88rem;
  font-weight: 600;
}

.request-state.idle {
  background: #efe4d7;
  color: var(--ink);
}

.request-state.pending {
  background: #fde7bb;
  color: #6f4a00;
}

.request-state.success {
  background: #dff5e3;
  color: #1f6b34;
}

.request-state.error {
  background: #f9dddd;
  color: #8f2020;
}

@keyframes sweep {
  0% {
    top: 16%;
    opacity: 0.35;
  }
  50% {
    top: 82%;
    opacity: 1;
  }
  100% {
    top: 16%;
    opacity: 0.35;
  }
}

@media (max-width: 640px) {
  .app-shell {
    width: min(100% - 20px, 960px);
    padding-top: 24px;
  }

  .controls,
  .result-header,
  .pair-list-header,
  .pair-card-header {
    flex-direction: column;
    align-items: stretch;
  }
}