@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:wght@400;600;700&family=DM+Sans:opsz,wght@9..40,400;9..40,500;9..40,600&display=swap');

/* ─── Tokens ───────────────────────────────────────────── */
:root {
  --sand:        #F5F0E8;
  --sand-dark:   #EDE8DF;
  --teal:        #2A6B6E;
  --teal-light:  #3A8E91;
  --teal-dark:   #1E5052;
  --coral:       #E07B5A;
  --coral-dark:  #C96845;
  --text:        #2C2423;
  --text-muted:  #7A706A;
  --card:        #FDFAF5;
  --border:      #E2DAD0;
  --pass:        #2E7D52;
  --pass-bg:     #E8F5EE;
  --close:       #B85C00;
  --close-bg:    #FFF3E0;
  --wrong:       #C0392B;
  --wrong-bg:    #FDECEA;
  --radius:      20px;
  --radius-sm:   12px;
  --shadow:      0 4px 24px rgba(42,107,110,0.10);
  --shadow-sm:   0 2px 8px rgba(42,107,110,0.07);
}

/* ─── Reset ────────────────────────────────────────────── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}

html {
  height: 100%;
}

body {
  font-family: 'DM Sans', system-ui, sans-serif;
  background: var(--sand);
  color: var(--text);
  min-height: 100%;
  min-height: 100dvh;
  max-width: 480px;
  margin: 0 auto;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

/* ─── Buttons ───────────────────────────────────────────── */
.btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  min-height: 56px;
  padding: 14px 24px;
  border: none;
  border-radius: var(--radius-sm);
  font-family: 'DM Sans', sans-serif;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s, transform 0.1s, opacity 0.15s;
  user-select: none;
}

.btn:active { transform: scale(0.98); }
.btn:disabled { opacity: 0.55; cursor: not-allowed; transform: none; }

.btn-primary {
  background: var(--coral);
  color: #fff;
}
.btn-primary:hover:not(:disabled) { background: var(--coral-dark); }

.btn-secondary {
  background: transparent;
  color: var(--teal);
  border: 2px solid var(--teal);
}
.btn-secondary:hover:not(:disabled) { background: rgba(42,107,110,0.06); }

/* ─── AUTH PAGE ─────────────────────────────────────────── */
body.auth-page {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px 20px;
  min-height: 100dvh;
  background: linear-gradient(160deg, #F5F0E8 0%, #EAE3D8 100%);
}

.auth-container {
  width: 100%;
  max-width: 400px;
}

.auth-header {
  text-align: center;
  margin-bottom: 36px;
}

.auth-logo {
  font-size: 3rem;
  margin-bottom: 12px;
  display: block;
  filter: drop-shadow(0 2px 8px rgba(42,107,110,0.15));
}

.auth-header h1 {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: 2rem;
  font-weight: 700;
  color: var(--teal-dark);
  letter-spacing: -0.02em;
  margin-bottom: 4px;
}

.auth-header .subtitle {
  font-size: 0.9rem;
  color: var(--text-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 500;
}

.auth-card {
  background: var(--card);
  border-radius: var(--radius);
  padding: 32px 28px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
}

.auth-tabs {
  display: flex;
  border-radius: var(--radius-sm);
  background: var(--sand-dark);
  padding: 4px;
  margin-bottom: 28px;
  gap: 4px;
}

.tab-btn {
  flex: 1;
  padding: 10px;
  border: none;
  border-radius: 9px;
  background: transparent;
  font-family: 'DM Sans', sans-serif;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-muted);
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}

.tab-btn.active {
  background: var(--card);
  color: var(--teal-dark);
  font-weight: 600;
  box-shadow: var(--shadow-sm);
}

.form-group {
  margin-bottom: 18px;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 6px;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.form-group input {
  width: 100%;
  padding: 14px 16px;
  border: 2px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--sand);
  font-family: 'DM Sans', sans-serif;
  font-size: 1rem;
  color: var(--text);
  transition: border-color 0.15s;
  -webkit-appearance: none;
}

.form-group input:focus {
  outline: none;
  border-color: var(--teal);
  background: #fff;
}

.error-msg {
  font-size: 0.875rem;
  color: var(--wrong);
  margin-bottom: 16px;
  padding: 10px 14px;
  background: var(--wrong-bg);
  border-radius: 8px;
}

/* ─── APP LAYOUT ────────────────────────────────────────── */
body.app-page {
  display: flex;
  flex-direction: column;
  min-height: 100dvh;
}

.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px 12px;
  position: sticky;
  top: 0;
  background: var(--sand);
  z-index: 10;
}

.pack-name {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--teal-dark);
  letter-spacing: -0.01em;
}

.sign-out-btn {
  background: none;
  border: none;
  font-family: 'DM Sans', sans-serif;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-muted);
  cursor: pointer;
  padding: 6px 10px;
  border-radius: 8px;
  transition: color 0.15s, background 0.15s;
}
.sign-out-btn:hover { color: var(--teal); background: rgba(42,107,110,0.06); }

/* ─── PROGRESS BAR ──────────────────────────────────────── */
.progress-track {
  height: 4px;
  background: var(--border);
  position: sticky;
  top: 57px;
  z-index: 9;
}

.progress-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--teal) 0%, var(--teal-light) 100%);
  transition: width 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  width: 0%;
  border-radius: 0 2px 2px 0;
}

/* ─── SCREENS ───────────────────────────────────────────── */
.screen {
  flex: 1;
  display: flex;
  flex-direction: column;
  padding: 24px 20px 32px;
}

/* ─── LOADING ───────────────────────────────────────────── */
#screen-loading {
  align-items: center;
  justify-content: center;
  gap: 16px;
}

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

.spinner {
  width: 44px;
  height: 44px;
  border: 3px solid var(--border);
  border-top-color: var(--teal);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin: 0 auto 16px;
}

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

.loading-content p {
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* ─── PRACTICE SCREEN ───────────────────────────────────── */
#screen-practice {
  gap: 0;
}

.phrase-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 28px;
}

.category-tag {
  display: inline-block;
  padding: 5px 14px;
  background: rgba(42,107,110,0.10);
  color: var(--teal-dark);
  border-radius: 99px;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.phrase-count {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 500;
}

.prompt-section {
  margin-bottom: 36px;
}

.prompt-label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.prompt-text {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--teal-dark);
  line-height: 1.25;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
}

.hear-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: none;
  border: 2px solid var(--teal);
  border-radius: 99px;
  padding: 9px 20px;
  font-family: 'DM Sans', sans-serif;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--teal);
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}

.hear-btn:hover { background: var(--teal); color: #fff; }
.hear-btn:active { transform: scale(0.97); }

.hear-icon { font-size: 1rem; }

/* ─── ANSWER SECTION ────────────────────────────────────── */
.answer-section {
  margin-bottom: 24px;
  flex: 1;
}

.input-group {
  display: flex;
  gap: 10px;
  align-items: stretch;
}

#answer-input {
  flex: 1;
  padding: 16px 18px;
  border: 2px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--card);
  font-family: 'DM Sans', sans-serif;
  font-size: 1rem;
  color: var(--text);
  transition: border-color 0.15s;
  -webkit-appearance: none;
  min-height: 56px;
}

#answer-input:focus {
  outline: none;
  border-color: var(--teal);
  background: #fff;
}

#answer-input::placeholder { color: var(--text-muted); }

.mic-btn {
  width: 56px;
  height: 56px;
  flex-shrink: 0;
  border: 2px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--card);
  font-size: 1.3rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: border-color 0.15s, background 0.15s;
  position: relative;
}

.mic-btn:hover { border-color: var(--teal); background: rgba(42,107,110,0.05); }

.mic-btn.listening {
  border-color: var(--coral);
  background: var(--wrong-bg);
  animation: pulse-border 1s ease-in-out infinite;
}

@keyframes pulse-border {
  0%, 100% { box-shadow: 0 0 0 0 rgba(224,123,90,0.4); }
  50% { box-shadow: 0 0 0 6px rgba(224,123,90,0); }
}

.listening-status {
  font-size: 0.8rem;
  color: var(--coral);
  font-weight: 500;
  margin-top: 8px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.listening-status::before {
  content: '';
  width: 7px;
  height: 7px;
  background: var(--coral);
  border-radius: 50%;
  animation: blink 1s ease-in-out infinite;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.2; }
}

/* ─── RESULT SCREEN ─────────────────────────────────────── */
.result-card {
  display: flex;
  flex-direction: column;
  gap: 0;
  flex: 1;
}

.result-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 22px;
  border-radius: 99px;
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 28px;
  align-self: flex-start;
}

.result-badge::before {
  font-size: 1.1rem;
}

.result-badge.pass {
  background: var(--pass-bg);
  color: var(--pass);
}
.result-badge.pass::before { content: '✓'; }

.result-badge.close {
  background: var(--close-bg);
  color: var(--close);
}
.result-badge.close::before { content: '~'; }

.result-badge.wrong {
  background: var(--wrong-bg);
  color: var(--wrong);
}
.result-badge.wrong::before { content: '✗'; }

.correct-answer-section {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 22px;
  margin-bottom: 20px;
}

.correct-label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 6px;
}

.correct-text {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--teal-dark);
  margin-bottom: 14px;
}

.feedback-section {
  margin-bottom: 32px;
  flex: 1;
}

.feedback-text {
  font-size: 1rem;
  color: var(--text);
  line-height: 1.6;
  margin-bottom: 10px;
}

.note-text {
  font-size: 0.875rem;
  color: var(--text-muted);
  background: var(--sand-dark);
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--teal-light);
  line-height: 1.5;
}

/* ─── PHONETIC ──────────────────────────────────────────── */
.phrase-audio-row {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}

.btn-phonetic {
  font-size: 0.8rem;
  padding: 8px 14px;
  color: var(--text-muted);
  border-color: var(--border);
  letter-spacing: 0.02em;
}

.btn-phonetic[aria-expanded="true"] {
  color: var(--teal);
  border-color: var(--teal);
  background: rgba(42,107,110,0.06);
}

.phonetic-text {
  font-family: 'DM Sans', sans-serif;
  font-size: 1rem;
  font-weight: 500;
  color: var(--teal);
  letter-spacing: 0.04em;
  line-height: 1.5;
  background: rgba(42,107,110,0.07);
  border-radius: var(--radius-sm);
  padding: 10px 16px;
  margin-bottom: 20px;
}

.phonetic-result {
  font-size: 0.9rem;
  margin-top: 4px;
  margin-bottom: 12px;
  padding: 7px 12px;
}

.result-actions {
  display: flex;
  gap: 12px;
  margin-top: auto;
}

.result-actions .btn {
  flex: 1;
}

/* ─── COMPLETE SCREEN ───────────────────────────────────── */
#screen-complete {
  align-items: center;
  justify-content: center;
  text-align: center;
}

.complete-card {
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0;
}

.complete-icon {
  font-size: 3.5rem;
  margin-bottom: 20px;
  filter: drop-shadow(0 4px 12px rgba(42,107,110,0.2));
}

#screen-complete h2 {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--teal-dark);
  letter-spacing: -0.02em;
  margin-bottom: 4px;
}

.complete-subtitle {
  font-size: 0.85rem;
  color: var(--text-muted);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-weight: 500;
  margin-bottom: 36px;
}

.stats-grid {
  display: flex;
  gap: 12px;
  width: 100%;
  margin-bottom: 36px;
}

.stat {
  flex: 1;
  padding: 18px 12px;
  border-radius: var(--radius);
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

.stat.pass  { background: var(--pass-bg); }
.stat.close { background: var(--close-bg); }
.stat.wrong { background: var(--wrong-bg); }

.stat-count {
  font-size: 2.2rem;
  font-weight: 700;
  font-family: 'Playfair Display', Georgia, serif;
  line-height: 1;
}

.stat.pass  .stat-count { color: var(--pass); }
.stat.close .stat-count { color: var(--close); }
.stat.wrong .stat-count { color: var(--wrong); }

.stat-label {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.stat.pass  .stat-label { color: var(--pass); }
.stat.close .stat-label { color: var(--close); }
.stat.wrong .stat-label { color: var(--wrong); }

#screen-complete .btn {
  max-width: 300px;
}