/* =========================================================
   Word Order – English Practice
   Skinned with the Rafa~ Español brandbook:
   - Fraunces for headings / display
   - Quicksand for body, labels, buttons
   - Azul-caribe base, coral accent, mostarda support
   ========================================================= */

:root {
  /* Brand palette */
  --azul-caribe: #0B5D6B;
  --azul-noite: #0B2A30;
  --coral-vivo: #D94F4F;
  --coral-claro: #E85D5D;
  --mostarda: #F2A154;
  --areia: #F5B36B;
  --cream: #F6EFDC;
  --cream-dim: #E4DCC7;

  /* Semantic mapping */
  --bg: var(--azul-caribe);
  --bg-deep: var(--azul-noite);
  --surface: var(--cream);
  --surface-soft: #FBF7EC;
  --ink: var(--azul-noite);
  --ink-soft: #4C6E74;
  --border: rgba(11, 42, 48, 0.14);
  --accent: var(--coral-vivo);
  --accent-dark: #B93A3A;
  --accent-soft: #F7DEDE;
  --success: #1E8F6F;
  --success-soft: #DCEFE7;
  --error: var(--coral-vivo);
  --error-soft: #F7DEDE;

  --font-display: "Fraunces", Georgia, serif;
  --font-body: "Quicksand", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 10px;
  --radius-pill: 100px;
  --shadow: 0 1px 2px rgba(11, 42, 48, .12), 0 6px 20px rgba(11, 42, 48, .16);
  --max-width: 560px;
  font-size: 16px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  overflow-x: hidden;
  width: 100%;
}

body {
  background: var(--bg);
  background-image: radial-gradient(circle at 15% 0%, rgba(255,255,255,0.05), transparent 55%);
  color: var(--cream);
  font-family: var(--font-body);
  font-weight: 500;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

.app {
  max-width: var(--max-width);
  margin: 0 auto;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  padding: 0 20px 40px;
}

/* ===================== HEADER ===================== */

.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 0 18px;
}

.logo {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin: 0;
  color: var(--cream);
}

.logo-til {
  color: var(--coral-vivo);
  margin-left: 1px;
}

.stats {
  display: flex;
  gap: 10px;
}

.stat {
  font-family: var(--font-body);
  font-size: 0.76rem;
  font-weight: 600;
  color: var(--cream);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.16);
  padding: 6px 13px;
  border-radius: var(--radius-pill);
  letter-spacing: 0.03em;
  text-transform: uppercase;
  font-size: 0.68rem;
}

.stat strong {
  color: var(--areia);
  font-weight: 700;
  font-size: 0.85rem;
  text-transform: none;
  margin-left: 3px;
}

/* ===================== MAIN / SCREENS ===================== */

.app-main {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.screen {
  display: none;
  flex-direction: column;
  flex: 1;
  animation: fadeIn .25s ease;
}

.screen.active {
  display: flex;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ===================== LEVEL SELECT SCREEN ===================== */

.intro {
  padding: 20px 0 8px;
  text-align: left;
}

.intro h2 {
  font-family: var(--font-display);
  font-size: 1.9rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin: 0 0 10px;
  line-height: 1.2;
  color: var(--cream);
}

.subtitle {
  font-family: var(--font-body);
  color: var(--cream-dim);
  font-size: 0.98rem;
  font-weight: 500;
  margin: 0;
}

.level-grid {
  margin-top: 28px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.level-btn {
  background: var(--surface);
  border: 1px solid transparent;
  border-radius: var(--radius-lg);
  padding: 26px 18px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 4px;
  cursor: pointer;
  box-shadow: var(--shadow);
  transition: transform .15s ease, border-color .15s ease, background .15s ease;
  text-align: left;
}

.level-btn:hover {
  border-color: var(--coral-vivo);
  transform: translateY(-2px);
}

.level-btn:active {
  transform: translateY(0);
}

.level-code {
  font-family: var(--font-display);
  font-size: 1.7rem;
  font-weight: 700;
  color: var(--coral-vivo);
  letter-spacing: -0.01em;
}

.level-label {
  font-family: var(--font-body);
  font-size: 0.82rem;
  color: var(--ink-soft);
  font-weight: 600;
}

/* ===================== GAME SCREEN ===================== */

.game-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 0 14px;
}

.level-badge {
  background: var(--coral-vivo);
  color: var(--cream);
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 0.76rem;
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.progress-text {
  font-family: var(--font-body);
  font-size: 0.85rem;
  color: var(--cream-dim);
  font-weight: 600;
}

.sentence-zone {
  min-height: 130px;
  background: rgba(255, 255, 255, 0.06);
  border: 1.5px dashed rgba(255, 255, 255, 0.22);
  border-radius: var(--radius-lg);
  padding: 16px;
  display: flex;
  flex-wrap: wrap;
  align-content: flex-start;
  gap: 10px;
  transition: border-color .2s ease, background .2s ease;
}

.sentence-zone.correct {
  border-color: var(--success);
  background: rgba(30, 143, 111, 0.16);
  border-style: solid;
}

.sentence-zone.incorrect {
  border-color: var(--coral-vivo);
  background: rgba(217, 79, 79, 0.14);
  border-style: solid;
}

.sentence-placeholder {
  font-family: var(--font-body);
  color: var(--cream-dim);
  opacity: 0.7;
  font-size: 0.95rem;
  align-self: center;
  padding: 8px 4px;
}

/* Word chip (shared style for bank + sentence) */
.word-chip {
  background: var(--surface);
  border: 1.5px solid transparent;
  border-radius: var(--radius-md);
  padding: 12px 16px;
  font-family: var(--font-body);
  font-size: 1.02rem;
  font-weight: 700;
  color: var(--ink);
  cursor: pointer;
  user-select: none;
  box-shadow: var(--shadow);
  transition: transform .12s ease, border-color .12s ease, background .12s ease;
  touch-action: manipulation;
  -webkit-user-drag: element;
}

.word-chip:hover {
  border-color: var(--mostarda);
}

.word-chip:active {
  transform: scale(0.96);
}

.sentence-zone .word-chip {
  background: var(--coral-vivo);
  border-color: var(--coral-vivo);
  color: var(--cream);
}

.sentence-zone .word-chip:hover {
  border-color: var(--accent-dark);
  background: var(--accent-dark);
}

.word-chip.dragging {
  opacity: 0.4;
}

/* Feedback */
.feedback {
  min-height: 28px;
  text-align: center;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.1rem;
  margin-top: 14px;
  transition: opacity .2s ease;
}

.feedback.show-correct { color: var(--areia); }
.feedback.show-incorrect { color: var(--coral-claro); }

/* Hint box */
.hint-box {
  min-height: 0;
  text-align: center;
  font-family: var(--font-body);
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--azul-noite);
  background: var(--mostarda);
  border-radius: var(--radius-sm);
  padding: 0;
  margin: 0;
  overflow: hidden;
  max-height: 0;
  opacity: 0;
  transition: all .2s ease;
}

.hint-box.visible {
  padding: 10px 14px;
  margin-top: 12px;
  max-height: 100px;
  opacity: 1;
}

/* Word bank */
.word-bank {
  margin-top: 22px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  min-height: 56px;
}

/* Buttons */
.actions-primary {
  margin-top: 26px;
}

.btn {
  border: none;
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-weight: 700;
  cursor: pointer;
  transition: transform .1s ease, background .15s ease, opacity .15s ease;
  touch-action: manipulation;
}

.btn:active {
  transform: scale(0.98);
}

.btn-primary {
  width: 100%;
  background: var(--coral-vivo);
  color: var(--cream);
  font-size: 1.05rem;
  padding: 17px;
  letter-spacing: 0.02em;
  box-shadow: 0 4px 14px rgba(217, 79, 79, 0.35);
}

.btn-primary:hover {
  background: var(--accent-dark);
}

.btn-primary:disabled {
  background: rgba(255, 255, 255, 0.18);
  box-shadow: none;
  cursor: not-allowed;
}

.btn-next {
  background: var(--success);
  box-shadow: 0 4px 14px rgba(30, 143, 111, 0.32);
}

.btn-next:hover {
  background: #16755a;
}

.actions-secondary {
  margin-top: 14px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.btn-ghost {
  flex: 1;
  min-width: 80px;
  background: rgba(255, 255, 255, 0.08);
  color: var(--cream);
  border: 1px solid rgba(255, 255, 255, 0.18);
  padding: 13px 10px;
  font-size: 0.86rem;
}

.btn-ghost:hover {
  border-color: var(--mostarda);
  color: var(--areia);
}

.btn-ghost:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

/* ===================== SUMMARY SCREEN ===================== */

#screen-summary {
  align-items: center;
  justify-content: center;
  flex: 1;
}

.summary-card {
  background: var(--surface);
  border: 1px solid transparent;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  padding: 40px 28px;
  width: 100%;
  text-align: center;
}

.summary-card h2 {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 700;
  margin: 0 0 18px;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.summary-line {
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 600;
  color: var(--ink-soft);
  margin: 6px 0;
}

.summary-line strong {
  color: var(--coral-vivo);
  font-weight: 700;
}

.summary-actions {
  margin-top: 28px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.summary-actions .btn-ghost {
  background: transparent;
  color: var(--ink-soft);
  border: 1px solid var(--border);
}

.summary-actions .btn-ghost:hover {
  border-color: var(--coral-vivo);
  color: var(--coral-vivo);
}

/* ===================== RESPONSIVE ===================== */

@media (min-width: 640px) {
  :root { font-size: 17px; }
  .app { padding: 0 32px 48px; }
}

@media (max-width: 360px) {
  .level-grid { gap: 10px; }
  .level-btn { padding: 20px 12px; }
}

/* ===================== FOOTER ===================== */

.app-footer {
  text-align: center;
  padding: 18px 0 4px;
}

.app-footer p {
  font-family: var(--font-body);
  font-size: 0.76rem;
  font-weight: 600;
  color: var(--cream-dim);
  opacity: 0.75;
  margin: 0;
  letter-spacing: 0.02em;
}

.app-footer a {
  color: var(--areia);
  font-weight: 700;
  text-decoration: none;
}

.app-footer a:hover {
  color: var(--coral-vivo);
  text-decoration: underline;
}