/* ProseAI App — matches landing page Easter palette */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --lavender:  #c084fc;
  --pink:      #f472b6;
  --coral:     #fb7185;
  --peach:     #fb923c;
  --gold:      #fbbf24;
  --plum:      #7e22ce;
  --deep:      #1e1035;
  --muted:     #7c6b9e;
  --easter:    linear-gradient(105deg, #ede9fe 0%, #fce7f3 28%, #ffe4cc 56%, #fef9c3 100%);
  --vivid:     linear-gradient(105deg, #c084fc, #f472b6, #fb923c, #fbbf24);
  --radius:    16px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  background: var(--easter);
  background-attachment: fixed;
  color: var(--deep);
  min-height: 100vh;
}

/* ── TOPBAR ── */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 32px;
  background: rgba(255,255,255,0.6);
  backdrop-filter: blur(24px);
  border-bottom: 1.5px solid rgba(255,255,255,0.8);
  position: sticky;
  top: 0;
  z-index: 10;
}

.logo {
  font-size: 1.3rem;
  font-weight: 900;
  letter-spacing: -0.04em;
  background: var(--vivid);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stats {
  display: flex;
  gap: 24px;
  align-items: center;
}

.stat {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--muted);
}

.stat .val {
  font-size: 1rem;
  font-weight: 900;
  color: var(--deep);
}

/* ── LAYOUT ── */
.app-wrap {
  max-width: 760px;
  margin: 0 auto;
  padding: 40px 24px 80px;
}

/* ── LOAD SCREEN ── */
.load-screen {
  text-align: center;
  padding: 80px 24px;
}

.load-screen h2 {
  font-size: 1.6rem;
  font-weight: 900;
  letter-spacing: -0.04em;
  margin-bottom: 8px;
  color: var(--deep);
}

.load-screen p { font-size: 0.88rem; color: var(--muted); margin-bottom: 32px; }

.progress-track {
  width: 100%;
  max-width: 400px;
  margin: 0 auto 12px;
  height: 8px;
  background: rgba(126,34,206,0.1);
  border-radius: 100px;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: var(--vivid);
  border-radius: 100px;
  transition: width 0.3s;
}

.progress-label {
  font-size: 0.75rem;
  color: var(--muted);
  font-weight: 600;
}

.device-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 16px;
  background: rgba(255,255,255,0.75);
  border: 1.5px solid rgba(192,132,252,0.3);
  color: var(--plum);
  padding: 5px 14px;
  border-radius: 100px;
  font-size: 0.75rem;
  font-weight: 700;
}

/* ── SKILL BADGE ── */
.skill-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255,255,255,0.75);
  border: 1.5px solid rgba(192,132,252,0.3);
  color: var(--plum);
  padding: 5px 14px;
  border-radius: 100px;
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 16px;
}

/* ── LESSON CARD ── */
.lesson-card {
  background: rgba(255,255,255,0.65);
  backdrop-filter: blur(24px) saturate(180%);
  border: 1.5px solid rgba(255,255,255,0.88);
  border-radius: 22px;
  padding: 36px;
  margin-bottom: 24px;
  box-shadow: 0 4px 24px rgba(126,34,206,0.07);
}

.lesson-prompt {
  font-size: 1.05rem;
  font-weight: 600;
  line-height: 1.6;
  color: var(--deep);
  margin-bottom: 28px;
  white-space: pre-wrap;
}

textarea {
  width: 100%;
  min-height: 140px;
  padding: 16px 18px;
  border-radius: 14px;
  border: 1.5px solid rgba(192,132,252,0.25);
  background: rgba(255,255,255,0.8);
  font-size: 0.98rem;
  font-family: inherit;
  color: var(--deep);
  line-height: 1.65;
  resize: vertical;
  transition: border-color 0.2s, box-shadow 0.2s;
  outline: none;
}

textarea:focus {
  border-color: rgba(244,114,182,0.5);
  box-shadow: 0 0 0 3px rgba(244,114,182,0.12);
}

textarea::placeholder { color: rgba(126,34,206,0.3); }

.submit-row {
  display: flex;
  justify-content: flex-end;
  margin-top: 16px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: 100px;
  font-weight: 800;
  font-size: 0.9rem;
  cursor: pointer;
  border: none;
  transition: all 0.22s;
}

.btn-primary {
  background: var(--vivid);
  color: #fff;
  box-shadow: 0 4px 20px rgba(244,114,182,0.4);
}

.btn-primary:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(244,114,182,0.5);
}

.btn-primary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-ghost {
  background: rgba(255,255,255,0.6);
  border: 1.5px solid rgba(192,132,252,0.25);
  color: var(--plum);
}

.btn-ghost:hover {
  background: rgba(255,255,255,0.9);
  transform: translateY(-1px);
}

/* ── FEEDBACK CARD ── */
.feedback-card {
  background: linear-gradient(135deg, rgba(192,132,252,0.1), rgba(244,114,182,0.07));
  border: 1.5px solid rgba(192,132,252,0.25);
  border-radius: 18px;
  padding: 28px;
  margin-bottom: 24px;
}

.feedback-label {
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  background: var(--vivid);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 10px;
}

.feedback-text {
  font-size: 0.95rem;
  line-height: 1.72;
  color: var(--deep);
}

/* ── XP TOAST ── */
.xp-toast {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: linear-gradient(135deg, rgba(251,146,60,0.15), rgba(251,191,36,0.15));
  border: 1.5px solid rgba(251,146,60,0.3);
  color: #c2410c;
  padding: 10px 20px;
  border-radius: 100px;
  font-size: 0.82rem;
  font-weight: 800;
  margin-top: 16px;
  animation: popIn 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

@keyframes popIn {
  from { transform: scale(0.7); opacity: 0; }
  to   { transform: scale(1);   opacity: 1; }
}

/* ── EXAMPLES ── */
.examples {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-top: 20px;
}

.example {
  border-radius: 12px;
  padding: 14px 16px;
  font-size: 0.83rem;
  line-height: 1.6;
}

.example.bad {
  background: rgba(251,113,133,0.08);
  border: 1.5px solid rgba(251,113,133,0.2);
}

.example.good {
  background: rgba(244,114,182,0.08);
  border: 1.5px solid rgba(244,114,182,0.2);
}

.example-label {
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 6px;
  color: var(--muted);
}

/* ── NEXT BUTTON ROW ── */
.next-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 24px;
}

/* ── THINKING DOTS ── */
.thinking {
  display: flex;
  gap: 6px;
  align-items: center;
  padding: 20px 0;
}

.thinking span {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--lavender);
  animation: blink 1.2s infinite;
}

.thinking span:nth-child(2) { animation-delay: 0.2s; background: var(--pink); }
.thinking span:nth-child(3) { animation-delay: 0.4s; background: var(--peach); }

@keyframes blink {
  0%, 80%, 100% { transform: scale(1); opacity: 0.5; }
  40% { transform: scale(1.4); opacity: 1; }
}

/* ── RESPONSIVE ── */
@media (max-width: 600px) {
  .topbar { padding: 14px 16px; }
  .stats { gap: 14px; }
  .app-wrap { padding: 24px 16px 60px; }
  .lesson-card { padding: 24px 20px; }
  .examples { grid-template-columns: 1fr; }
}