*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: #f4f6f9;
  color: #222;
  min-height: 100vh;
}

/* ── Loading Screen ── */
#loading-screen {
  position: fixed;
  inset: 0;
  background: #1a1a2e;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 999;
  color: #fff;
}

.loading-content {
  text-align: center;
}

.loading-content h2 {
  font-size: 2rem;
  margin-bottom: 0.5rem;
}

.loading-content p {
  font-size: 1rem;
  opacity: 0.7;
  margin-bottom: 1.5rem;
}

.spinner {
  width: 48px;
  height: 48px;
  border: 5px solid rgba(255,255,255,0.2);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin: 0 auto;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ── Utilities ── */
.hidden {
  display: none !important;
}

/* ── App Layout ── */
#app {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* ── Header ── */
header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1.5rem;
  background: #1a1a2e;
  color: #fff;
  position: sticky;
  top: 0;
  z-index: 10;
}

.back-link {
  color: #a0c4ff;
  text-decoration: none;
  font-size: 1rem;
  font-weight: 600;
}

.back-link:hover {
  text-decoration: underline;
}

.stats {
  display: flex;
  gap: 1.5rem;
  font-size: 1rem;
  font-weight: 600;
}

#score-display {
  color: #a0ffb0;
}

#timer-display {
  color: #ffd6a0;
  font-variant-numeric: tabular-nums;
  font-family: monospace;
  font-size: 1.1rem;
}

/* ── Main ── */
main {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 2rem 1rem 3rem;
  gap: 1.5rem;
}

/* ── Word Display ── */
#word-display {
  font-size: 3rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: #1a1a2e;
  min-height: 3.5rem;
}

/* ── Input ── */
.input-wrapper {
  position: relative;
  width: 100%;
  max-width: 420px;
  display: flex;
  gap: 0.5rem;
}

#ipa-input {
  width: 100%;
  padding: 0.65rem 1rem;
  font-size: 1.4rem;
  border: 2px solid #ccc;
  border-radius: 8px;
  outline: none;
  transition: border-color 0.2s, background 0.2s;
  font-family: inherit;
  text-align: center;
}

#ipa-input:focus {
  border-color: #4a90e2;
}

#ipa-input.error {
  border-color: #e74c3c;
  background: #fdecea;
}

#ipa-input.success {
  border-color: #27ae60;
  background: #eafaf1;
}

#give-up-btn {
  padding: 0 1rem;
  font-size: 0.9rem;
  font-weight: 600;
  background: #e74c3c;
  color: #fff;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: background 0.2s;
  white-space: nowrap;
}

#give-up-btn:hover {
  background: #c0392b;
}

/* ── Flying +1 ── */
.flying-plus {
  position: absolute;
  top: -10px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 1.5rem;
  font-weight: 800;
  color: #27ae60;
  pointer-events: none;
  animation: flyUp 0.9s ease-out forwards;
}

@keyframes flyUp {
  0%   { opacity: 1; transform: translateX(-50%) translateY(0); }
  100% { opacity: 0; transform: translateX(-50%) translateY(-60px); }
}

/* ── Tables ── */
.table-container {
  width: 100%;
  max-width: 900px;
  overflow-x: auto;
}

table {
  border-collapse: collapse;
  width: 100%;
  background: #fff;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0,0,0,0.08);
  font-size: 0.9rem;
}

th, td {
  border: 1px solid #ddd;
  padding: 0.45rem 0.6rem;
  text-align: center;
  vertical-align: middle;
}

thead th {
  background: #1a1a2e;
  color: #fff;
  font-weight: 600;
  font-size: 0.82rem;
}

td.manner {
  text-align: left;
  font-style: italic;
  font-size: 0.82rem;
  color: #555;
  white-space: nowrap;
  background: #f0f0f5;
}

/* ── IPA Buttons ── */
.ipa-btn {
  display: inline-block;
  padding: 0.2rem 0.35rem;
  margin: 0.1rem;
  font-size: 1.15rem;
  color: #1a1a2e;
  text-decoration: none;
  border-radius: 4px;
  transition: background 0.15s, color 0.15s;
  cursor: pointer;
  font-family: 'Noto Sans', 'DejaVu Sans', serif;
}

.ipa-btn:hover {
  background: #1a1a2e;
  color: #fff;
}

/* ── Vowel table single-row ── */
#vowel-table thead th {
  font-size: 0.9rem;
}

#vowel-table td {
  padding: 0.6rem 1rem;
}

/* ── Settings ── */
.settings-wrapper {
  margin-top: 1rem;
  padding: 1rem;
  background: #fff;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.08);
  font-size: 0.95rem;
  color: #444;
}

.settings-wrapper label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  cursor: help;
}

.settings-wrapper input[type="checkbox"] {
  cursor: pointer;
  width: 1.1rem;
  height: 1.1rem;
}

.settings-wrapper p, .settings-wrapper hr {
  margin: 10px 0 !important;
}