:root {
  --ink: #173057;
  --ink-soft: #49627e;
  --surface: rgba(255, 253, 246, 0.88);
  --surface-strong: #fff8d9;
  --sun: #ffd64d;
  --sun-deep: #ffba08;
  --sky: #65c8ff;
  --sky-deep: #2c7edb;
  --accent: #ff6b4a;
  --shadow: 0 22px 50px rgba(29, 54, 89, 0.18);
  --radius-xl: 28px;
  --radius-lg: 20px;
  --radius-md: 14px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Trebuchet MS", "Gill Sans", "Avenir Next", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at top left, rgba(255, 214, 77, 0.7), transparent 28%),
    radial-gradient(circle at top right, rgba(101, 200, 255, 0.55), transparent 30%),
    linear-gradient(145deg, #ffe97d 0%, #ffd64d 38%, #fff3bf 100%);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.2;
  background-image: linear-gradient(rgba(23, 48, 87, 0.1) 1px, transparent 1px);
  background-size: 100% 24px;
}

.app-shell {
  width: min(1120px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 2rem 0 3rem;
}

.hero,
.translator-panel,
.examples-panel,
.phrasebook-panel {
  position: relative;
  overflow: hidden;
  background: var(--surface);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.55);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow);
}

.hero {
  padding: 2.5rem;
  margin-bottom: 1.5rem;
  background:
    radial-gradient(circle at right top, rgba(44, 126, 219, 0.18), transparent 30%),
    linear-gradient(135deg, rgba(255, 248, 217, 0.95), rgba(255, 255, 255, 0.82));
}

.hero h1 {
  margin: 0.35rem 0 0.8rem;
  max-width: 10ch;
  font-size: clamp(2.6rem, 5vw, 4.8rem);
  line-height: 0.95;
  letter-spacing: -0.04em;
}

.hero-copy,
.status-message,
.phrasebook-item,
textarea,
.output-text {
  font-size: 1rem;
  line-height: 1.6;
}

.hero-copy {
  max-width: 58ch;
  margin: 0;
  color: var(--ink-soft);
}

.eyebrow,
.panel-kicker {
  margin: 0;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.72rem;
  font-weight: 800;
  color: var(--sky-deep);
}

.translator-panel,
.examples-panel,
.phrasebook-panel {
  padding: 1.5rem;
  margin-bottom: 1.5rem;
}

.panel-heading,
.section-heading,
.action-row,
.output-header,
.card-heading,
.card-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.panel-heading h2,
.section-heading h2 {
  margin: 0.25rem 0 0;
  font-size: clamp(1.7rem, 3vw, 2.4rem);
}

.translator-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  margin: 1.35rem 0 1rem;
}

.text-card {
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
  min-height: 100%;
  padding: 1rem;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(23, 48, 87, 0.08);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.95), rgba(255, 248, 217, 0.85));
}

.card-label {
  font-size: 0.88rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

.card-heading,
.output-header {
  width: 100%;
}

textarea {
  width: 100%;
  min-height: 220px;
  resize: vertical;
  border: none;
  outline: none;
  color: var(--ink);
  background: transparent;
  font-family: inherit;
}

.output-card {
  justify-content: space-between;
}

.output-text {
  margin: 0;
  white-space: pre-wrap;
}

.chip-row,
.phrasebook-grid {
  display: grid;
  gap: 0.85rem;
}

.chip-row {
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  margin-top: 1rem;
}

.phrasebook-grid {
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  margin-top: 1rem;
}

.phrasebook-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.95rem 1rem;
  border-radius: var(--radius-md);
  background: linear-gradient(120deg, rgba(101, 200, 255, 0.16), rgba(255, 214, 77, 0.24));
  border: 1px solid rgba(23, 48, 87, 0.08);
}

.phrasebook-english {
  font-weight: 700;
}

.phrasebook-divider {
  color: var(--ink-soft);
}

.phrasebook-mionese {
  font-weight: 800;
  color: var(--accent);
}

button {
  border: none;
  cursor: pointer;
  font: inherit;
  transition: transform 180ms ease, box-shadow 180ms ease, background-color 180ms ease;
}

button:hover {
  transform: translateY(-1px);
}

button:active {
  transform: translateY(0);
}

.primary-button,
.secondary-button,
.ghost-button,
.example-chip {
  border-radius: 999px;
}

.primary-button,
.secondary-button,
.ghost-button {
  padding: 0.85rem 1.2rem;
  font-weight: 800;
}

.card-button {
  padding: 0.65rem 0.95rem;
  font-size: 0.92rem;
}

.primary-button {
  color: #132645;
  background: linear-gradient(135deg, var(--sun), var(--sun-deep));
  box-shadow: 0 12px 24px rgba(255, 186, 8, 0.28);
}

.secondary-button {
  color: white;
  background: linear-gradient(135deg, var(--sky), var(--sky-deep));
}

.ghost-button {
  color: var(--ink);
  background: rgba(23, 48, 87, 0.08);
}

.example-chip {
  padding: 1rem 1.1rem;
  text-align: left;
  font-weight: 700;
  color: var(--ink);
  background: rgba(255, 255, 255, 0.82);
  border: 1px solid rgba(23, 48, 87, 0.08);
}

.status-message {
  margin: 0;
  color: var(--ink-soft);
}

@media (max-width: 840px) {
  .translator-grid {
    grid-template-columns: 1fr;
  }

  .panel-heading,
  .section-heading,
  .action-row,
  .card-heading,
  .output-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .card-actions {
    width: 100%;
  }

  .primary-button,
  .secondary-button,
  .card-button {
    width: 100%;
    justify-content: center;
  }
}