:root {
  --bg: #fff4db;
  --bg-accent: #ffe1b4;
  --ink: #2b2b2b;
  --ink-soft: #5b4b3e;
  --primary: #ff6f3c;
  --secondary: #2f80ed;
  --card: #ffffff;
  --card-shadow: 0 12px 24px rgba(55, 39, 15, 0.12);
  --border: #f3c890;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Trebuchet MS", "Gill Sans", "Segoe UI", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at top left, #fff9ec 10%, transparent 60%),
    radial-gradient(circle at 90% 20%, #ffe2c2 0%, transparent 55%),
    linear-gradient(180deg, var(--bg) 0%, #fff 80%);
  min-height: 100vh;
}

h1,
h2 {
  font-family: "Trebuchet MS", "Gill Sans", "Segoe UI", sans-serif;
  margin: 0 0 0.6rem;
}

p {
  margin: 0;
  line-height: 1.5;
}

.hero {
  padding: 3.5rem 1.5rem 2.5rem;
  background: linear-gradient(120deg, #ffd8a8 0%, #ffecc2 45%, #fff 100%);
  border-bottom: 4px solid var(--border);
}

.hero__inner {
  max-width: 980px;
  margin: 0 auto;
}

.hero__eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.85rem;
  color: var(--ink-soft);
}

.hero__lead {
  max-width: 680px;
  font-size: 1.05rem;
  margin: 0.6rem 0 1.5rem;
}

.hero__actions {
  display: flex;
  gap: 0.8rem;
  flex-wrap: wrap;
}

.hero__note {
  margin-top: 1rem;
  font-size: 0.95rem;
  color: var(--ink-soft);
}

.hero__note--mono {
  font-family: \"Courier New\", Courier, monospace;
  font-size: 0.85rem;
  color: #7a5b33;
}

.layout {
  display: grid;
  gap: 1.5rem;
  padding: 2rem 1.5rem 3rem;
  max-width: 1100px;
  margin: 0 auto;
}

.panel {
  background: var(--card);
  padding: 1.5rem;
  border-radius: 18px;
  box-shadow: var(--card-shadow);
  border: 2px solid #f9ddae;
}

.panel--wide {
  position: relative;
}

.panel__header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 1.2rem;
}

.panel__hint {
  color: var(--ink-soft);
  font-size: 0.95rem;
}

.panel__controls {
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
}

.panel__footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 1.2rem;
  gap: 1rem;
  flex-wrap: wrap;
}

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

.category-grid {
  display: grid;
  gap: 0.8rem;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  margin-top: 1rem;
}

.category-btn {
  border: 2px solid transparent;
  background: #fff3dc;
  padding: 0.9rem 1rem;
  border-radius: 14px;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.category-btn:hover {
  transform: translateY(-2px);
  border-color: var(--primary);
}

.category-btn.is-active {
  background: #fff;
  border-color: var(--secondary);
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: 1rem;
}

.word-card {
  background: #fff;
  border-radius: 16px;
  padding: 1rem;
  border: 2px solid #ffe7c6;
  box-shadow: 0 8px 20px rgba(255, 167, 71, 0.15);
  display: grid;
  gap: 0.8rem;
  min-height: 150px;
  position: relative;
  overflow: hidden;
}

.word-card::after {
  content: "";
  position: absolute;
  inset: auto -40px -40px auto;
  width: 120px;
  height: 120px;
  background: radial-gradient(circle, rgba(255, 111, 60, 0.2), transparent 70%);
}

.word-card__emoji {
  font-size: 2rem;
}

.word-card__en {
  font-size: 1.2rem;
  font-weight: 700;
}

.word-card__no {
  font-size: 0.95rem;
  color: var(--ink-soft);
}

.word-card__actions {
  display: flex;
  gap: 0.5rem;
  align-items: center;
  flex-wrap: wrap;
}

.btn {
  border: 2px solid #ffd39c;
  background: #fff;
  padding: 0.6rem 1rem;
  border-radius: 999px;
  cursor: pointer;
  font-weight: 700;
  font-size: 0.95rem;
  transition: transform 0.15s ease, background 0.2s ease;
}

.btn:hover {
  transform: translateY(-1px);
  background: #fff5e4;
}

.btn--primary {
  background: var(--primary);
  color: #fff;
  border-color: transparent;
}

.btn--primary:hover {
  background: #ff5a1c;
}

.btn--ghost {
  background: #fff3dc;
  border-color: #ffd39c;
}

.footer {
  text-align: center;
  padding: 1.5rem;
  color: var(--ink-soft);
}

@media (max-width: 700px) {
  .hero {
    padding: 2.5rem 1.2rem;
  }

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