/* =====================================================================
   English Flow — Duolingo-Style Gamified Practice Room (practice-flow.css)
   Pure light theme. High-dopamine, playful, clean, tactile.
   ===================================================================== */

:root {
  --ef-green: #58cc02;
  --ef-green-shadow: #58a700;
  --ef-green-light: #d7ffb8;
  --ef-green-bg: #eaf8df;
  --ef-blue: #1cb0f6;
  --ef-blue-shadow: #1899d6;
  --ef-blue-light: #ddf4ff;
  --ef-yellow: #ffc800;
  --ef-yellow-shadow: #e5a500;
  --ef-yellow-light: #fff5cc;
  --ef-orange: #ff9600;
  --ef-orange-shadow: #e07c00;
  --ef-red: #ff4b4b;
  --ef-red-shadow: #ea2b2b;
  --ef-red-light: #ffdfe0;
  --ef-red-bg: #ffe8e9;
  --ef-purple: #ce82ff;
  --ef-purple-shadow: #a568cc;
  --ef-ink: #3c3c3c;
  --ef-ink-muted: #777777;
  --ef-border: #e5e5e5;
  --ef-border-thick: #cecece;
  --ef-bg: #ffffff;
  --ef-bg-subtle: #f7f9fa;
  --ef-font: "Nunito", "DM Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

body.practice-page {
  background: var(--ef-bg-subtle);
  color: var(--ef-ink);
  font-family: var(--ef-font);
  margin: 0;
  padding: 0;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

.practice-page * {
  box-sizing: border-box;
}

.practice-page [hidden] {
  display: none !important;
}

/* ---------------- Practice Header ---------------- */
.practice-header {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 72px;
  padding: 10px max(24px, calc((100% - 1380px) / 2));
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(12px);
  border-bottom: 2px solid var(--ef-border);
}

.practice-header .brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 21px;
  font-weight: 800;
  color: var(--ef-ink);
  text-decoration: none;
}
.practice-header .brand b {
  color: var(--ef-green);
  font-weight: 900;
}
.practice-header .brand small {
  display: block;
  font-size: 9px;
  letter-spacing: 1.5px;
  color: var(--ef-ink-muted);
  font-weight: 800;
  margin-top: 2px;
}

.practice-header nav {
  display: flex;
  gap: 8px;
  align-items: center;
}
.practice-header nav a {
  color: var(--ef-ink-muted);
  font-weight: 800;
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 10px 14px;
  border-radius: 14px;
  text-decoration: none;
  transition: all 0.15s ease;
}
.practice-header nav a:hover {
  background: var(--ef-bg-subtle);
  color: var(--ef-ink);
}
.practice-header nav [aria-current] {
  color: var(--ef-blue);
  background: var(--ef-blue-light);
}
.nav-dot {
  display: inline-block;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--ef-blue);
  margin-left: 6px;
  box-shadow: 0 0 0 3px rgba(28, 176, 246, 0.25);
  animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.3); opacity: 0.7; }
}

/* Top stats in header */
.top-stats {
  display: flex;
  align-items: center;
  gap: 12px;
}
.top-stat {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border-radius: 12px;
  border: 2px solid var(--ef-border);
  background: #ffffff;
  font-weight: 900;
  font-size: 14px;
  cursor: default;
  transition: transform 0.1s;
}
.top-stat:hover {
  transform: translateY(-1px);
}
.top-stat.streak { color: var(--ef-orange); }
.top-stat.gems { color: var(--ef-blue); }
.top-stat.xp { color: var(--ef-yellow-shadow); }

.sound-toggle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--ef-font);
  font-size: 13px;
  font-weight: 800;
  color: var(--ef-ink);
  background: #ffffff;
  border: 2px solid var(--ef-border);
  box-shadow: 0 3px 0 var(--ef-border);
  border-radius: 14px;
  padding: 8px 14px;
  cursor: pointer;
  transition: all 0.1s ease;
}
.sound-toggle:hover {
  background: var(--ef-bg-subtle);
  transform: translateY(-1px);
  box-shadow: 0 4px 0 var(--ef-border);
}
.sound-toggle:active {
  transform: translateY(3px);
  box-shadow: 0 0 0 var(--ef-border);
}

/* ---------------- Main App Layout ---------------- */
.app-layout {
  display: grid;
  grid-template-columns: 240px minmax(0, 1fr) 320px;
  gap: 36px;
  max-width: 1380px;
  margin: 0 auto;
  padding: 32px 24px 60px;
}

/* ---------------- Left Sidebar ---------------- */
.learn-sidebar {
  border-right: 2px solid var(--ef-border);
  padding-right: 20px;
}
.learn-sidebar .overline {
  font-size: 11px;
  font-weight: 900;
  letter-spacing: 1.2px;
  color: var(--ef-ink-muted);
  margin: 0 0 16px 10px;
  text-transform: uppercase;
}
.side-link {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--ef-ink);
  font-size: 14px;
  font-weight: 800;
  padding: 12px 14px;
  margin-bottom: 6px;
  border-radius: 16px;
  text-decoration: none;
  border: 2px solid transparent;
  transition: all 0.15s ease;
}
.side-link:hover {
  background: #ffffff;
  border-color: var(--ef-border);
  transform: translateX(2px);
}
.side-link.active {
  background: var(--ef-blue-light);
  color: var(--ef-blue-shadow);
  border-color: #b8e7ff;
}
.side-link .side-icon {
  font-size: 20px;
  line-height: 1;
}
.side-link b {
  margin-left: auto;
  font-size: 11px;
  font-weight: 900;
  background: var(--ef-green-light);
  color: var(--ef-green-shadow);
  padding: 2px 7px;
  border-radius: 8px;
}

.sidebar-note {
  background: #ffffff;
  border: 2px solid var(--ef-border);
  border-radius: 18px;
  margin-top: 24px;
  padding: 18px 16px;
  box-shadow: 0 4px 0 var(--ef-border);
}
.sidebar-note .note-mark {
  font-size: 32px;
  line-height: 0.8;
  color: var(--ef-yellow);
  display: block;
}
.sidebar-note p {
  font-size: 14px;
  font-weight: 800;
  color: var(--ef-ink);
  margin: 6px 0 6px;
  line-height: 1.4;
}
.sidebar-note small {
  font-size: 12px;
  color: var(--ef-ink-muted);
  display: block;
}

.workbook-link {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--ef-yellow-light);
  border: 2px solid var(--ef-yellow-shadow);
  border-radius: 16px;
  padding: 14px 14px;
  margin-top: 16px;
  text-decoration: none;
  color: #5a4200;
  font-weight: 800;
  font-size: 13px;
  box-shadow: 0 4px 0 var(--ef-yellow-shadow);
  transition: transform 0.1s;
}
.workbook-link:hover {
  transform: translateY(-2px);
}
.workbook-link:active {
  transform: translateY(2px);
  box-shadow: 0 1px 0 var(--ef-yellow-shadow);
}
.workbook-link .wb-icon {
  font-size: 24px;
}
.workbook-link small {
  display: block;
  font-size: 11px;
  font-weight: 700;
  color: #795c00;
}

.local-note {
  font-size: 11px;
  color: var(--ef-ink-muted);
  text-align: center;
  margin-top: 14px;
}

/* ---------------- Center Area ---------------- */
main#practice {
  outline: none;
}

.page-heading {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}
.page-heading .overline {
  font-size: 11px;
  font-weight: 900;
  color: var(--ef-blue);
  letter-spacing: 1.5px;
  margin-bottom: 4px;
}
.page-heading h1 {
  font-size: 34px;
  font-weight: 900;
  margin: 0;
  color: var(--ef-ink);
}
.page-heading h1 em {
  color: var(--ef-green);
  font-style: normal;
}
.chapter-tag {
  background: #ffffff;
  border: 2px solid var(--ef-border);
  box-shadow: 0 3px 0 var(--ef-border);
  padding: 8px 14px;
  border-radius: 16px;
  font-size: 11px;
  font-weight: 800;
  color: var(--ef-ink-muted);
  text-align: right;
}
.chapter-tag b {
  color: var(--ef-ink);
}

.intro-text {
  font-size: 15px;
  color: var(--ef-ink-muted);
  margin-top: -8px;
  margin-bottom: 24px;
  font-weight: 600;
}

/* ---------------- Today Kickoff Card ---------------- */
.today-card {
  display: grid;
  grid-template-columns: 1.25fr 1fr;
  gap: 24px;
  background: #ffffff;
  border: 3px solid #d4f4b2;
  box-shadow: 0 6px 0 #b3e685, 0 16px 36px rgba(88, 204, 2, 0.12);
  border-radius: 28px;
  padding: 30px;
  margin-bottom: 36px;
  position: relative;
  overflow: visible;
}
.today-copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.today-copy .overline {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  font-weight: 900;
  letter-spacing: 1.2px;
  color: var(--ef-green-shadow);
  margin-bottom: 8px;
}
.live-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--ef-green);
  box-shadow: 0 0 0 3px rgba(88, 204, 2, 0.25);
  animation: pulse-dot 1.8s infinite;
}
.today-copy h2 {
  font-size: 28px;
  font-weight: 900;
  color: var(--ef-ink);
  margin: 0 0 10px;
  line-height: 1.2;
}
.today-copy p:not(.overline) {
  font-size: 14px;
  color: var(--ef-ink-muted);
  margin: 0 0 16px;
  font-weight: 600;
}
.lesson-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 12px;
  font-weight: 800;
  color: var(--ef-ink-muted);
  margin-bottom: 22px;
}
.lesson-meta span {
  background: var(--ef-bg-subtle);
  padding: 4px 10px;
  border-radius: 10px;
  border: 1px solid var(--ef-border);
}

/* 3D Primary Button */
.primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  background: var(--ef-green);
  box-shadow: 0 5px 0 var(--ef-green-shadow);
  color: #ffffff;
  font-family: var(--ef-font);
  font-size: 16px;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 16px 32px;
  border: none;
  border-radius: 20px;
  cursor: pointer;
  transition: transform 0.08s ease, box-shadow 0.08s ease, filter 0.15s ease;
  width: fit-content;
}
.primary:hover:not(:disabled) {
  filter: brightness(1.06);
  transform: translateY(-2px);
  box-shadow: 0 7px 0 var(--ef-green-shadow);
}
.primary:active:not(:disabled) {
  transform: translateY(4px);
  box-shadow: 0 1px 0 var(--ef-green-shadow);
}
.primary:disabled {
  background: #e5e5e5;
  box-shadow: 0 4px 0 #cecece;
  color: #afafaf;
  cursor: not-allowed;
  transform: none;
}
.today-copy small {
  display: block;
  font-size: 12px;
  font-weight: 700;
  color: var(--ef-ink-muted);
  margin-top: 12px;
}

/* Mentor zone on today-card */
.mentor-zone {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
  min-height: 220px;
}
.mentor-bubble {
  background: #ffffff;
  border: 2px solid var(--ef-border);
  box-shadow: 0 4px 0 var(--ef-border);
  padding: 12px 18px;
  border-radius: 18px;
  font-size: 13px;
  font-weight: 800;
  color: var(--ef-ink);
  position: relative;
  margin-bottom: 12px;
  max-width: 240px;
  text-align: center;
  animation: float-bubble 3s ease-in-out infinite;
}
.mentor-bubble::after {
  content: "";
  position: absolute;
  bottom: -9px;
  left: 50%;
  transform: translateX(-50%) rotate(45deg);
  width: 14px;
  height: 14px;
  background: #ffffff;
  border-right: 2px solid var(--ef-border);
  border-bottom: 2px solid var(--ef-border);
}

@keyframes float-bubble {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-4px); }
}

.mentor-companion {
  width: 130px;
  filter: drop-shadow(0 8px 16px rgba(88, 204, 2, 0.2));
}

.phrase-preview {
  display: none; /* Flo mascot is the hero! */
}

/* ---------------- Stepping Stone Path ---------------- */
.path-section-new {
  background: #ffffff;
  border: 2px solid var(--ef-border);
  box-shadow: 0 4px 0 var(--ef-border);
  border-radius: 28px;
  padding: 32px 24px;
}
.section-title {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 6px;
}
.section-title .overline {
  font-size: 11px;
  font-weight: 900;
  color: var(--ef-blue);
  letter-spacing: 1.2px;
}
.section-title h2 {
  font-size: 26px;
  font-weight: 900;
  color: var(--ef-ink);
  margin: 0;
}
.small-pill {
  background: var(--ef-green-light);
  color: var(--ef-green-shadow);
  font-size: 12px;
  font-weight: 900;
  padding: 6px 14px;
  border-radius: 16px;
  border: 1px solid #b7ed8c;
}
.path-help {
  font-size: 13px;
  color: var(--ef-ink-muted);
  font-weight: 700;
  margin: 4px 0 20px;
}

/* Unit tabs */
.unit-tabs {
  display: flex;
  gap: 10px;
  margin-bottom: 20px;
}
.unit-tabs button {
  flex: 1;
  font-family: var(--ef-font);
  font-size: 13px;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 12px;
  background: var(--ef-bg-subtle);
  border: 2px solid var(--ef-border);
  border-radius: 16px;
  color: var(--ef-ink-muted);
  cursor: pointer;
  transition: all 0.12s ease;
}
.unit-tabs button:hover {
  background: #ffffff;
  color: var(--ef-ink);
  transform: translateY(-1px);
}
.unit-tabs button[aria-pressed="true"] {
  background: var(--ef-blue);
  color: #ffffff;
  border-color: var(--ef-blue-shadow);
  box-shadow: 0 4px 0 var(--ef-blue-shadow);
  transform: translateY(-2px);
}

/* Unit heading banner */
.unit-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: linear-gradient(135deg, #1cb0f6, #0c88c7);
  color: #ffffff;
  padding: 20px 24px;
  border-radius: 20px;
  margin-bottom: 30px;
  box-shadow: 0 6px 0 var(--ef-blue-shadow);
}
.unit-heading h3 {
  font-size: 18px;
  font-weight: 900;
  margin: 0 0 4px;
  color: #ffffff !important;
}
.unit-heading p {
  font-size: 13px;
  margin: 0;
  opacity: 0.95;
  font-weight: 600;
}
.unit-heading > span {
  font-size: 28px;
}

/* Stepping Stones Winding Path */
.learning-path {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 28px;
  padding: 20px 0;
  position: relative;
}

.path-stop {
  display: flex;
  align-items: center;
  gap: 20px;
  position: relative;
  width: 320px;
  transition: transform 0.2s;
}

/* S-curve serpentine layout */
.path-stop:nth-child(6n+1) { transform: translateX(0); }
.path-stop:nth-child(6n+2) { transform: translateX(54px); }
.path-stop:nth-child(6n+3) { transform: translateX(96px); }
.path-stop:nth-child(6n+4) { transform: translateX(54px); }
.path-stop:nth-child(6n+5) { transform: translateX(0); }
.path-stop:nth-child(6n+6) { transform: translateX(-54px); }

/* Day Node (Duolingo Round 3D Stepping Stone) */
.day-node {
  width: 72px;
  height: 70px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-family: var(--ef-font);
  font-size: 24px;
  font-weight: 900;
  cursor: pointer;
  border: none;
  flex-shrink: 0;
  position: relative;
  transition: transform 0.1s ease, box-shadow 0.1s ease, filter 0.15s ease;
}

/* Current lesson: Pulsing glowing green with bounce */
.day-node.is-now {
  background: var(--ef-green);
  box-shadow: 0 7px 0 var(--ef-green-shadow), 0 0 0 6px var(--ef-green-light);
  color: #ffffff;
  animation: stone-bounce 2s ease-in-out infinite;
}
.day-node.is-now:hover {
  transform: translateY(-3px) scale(1.05);
  box-shadow: 0 10px 0 var(--ef-green-shadow), 0 0 0 8px var(--ef-green-light);
}

@keyframes stone-bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}

/* Completed lesson: Bright gold / green with checkmark */
.day-node.is-done {
  background: var(--ef-yellow);
  box-shadow: 0 6px 0 var(--ef-yellow-shadow);
  color: #553e00;
}
.day-node.is-done:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 0 var(--ef-yellow-shadow);
}

/* Locked lesson */
.day-node.is-locked {
  background: #e5e5e5;
  box-shadow: 0 6px 0 #cfcfcf;
  color: #9f9f9f;
  cursor: not-allowed;
}

.node-copy {
  display: flex;
  flex-direction: column;
}
.node-copy small {
  font-size: 10px;
  font-weight: 900;
  letter-spacing: 1px;
  color: var(--ef-ink-muted);
  text-transform: uppercase;
}
.node-copy strong {
  font-size: 15px;
  font-weight: 900;
  color: var(--ef-ink);
}
.node-copy span {
  font-size: 12px;
  font-weight: 700;
  color: var(--ef-ink-muted);
}
.path-stop.current .node-copy small {
  color: var(--ef-green-shadow);
}
.path-stop.current .node-copy strong {
  color: var(--ef-green-shadow);
}

.path-end {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-top: 36px;
  padding: 24px;
  border-top: 2px dashed var(--ef-border);
  text-align: center;
}
.path-end > span {
  font-size: 38px;
}
.path-end p {
  font-size: 14px;
  font-weight: 700;
  color: var(--ef-ink-muted);
  margin: 0;
}
.path-end b {
  color: var(--ef-ink);
  font-size: 15px;
}

/* ---------------- Right Sidebar (Gamification) ---------------- */
.progress-sidebar {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.stats-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}
.stats-row > div {
  background: #ffffff;
  border: 2px solid var(--ef-border);
  box-shadow: 0 4px 0 var(--ef-border);
  border-radius: 18px;
  padding: 14px 10px;
  text-align: center;
}
.stats-row .stat-icon {
  font-size: 24px;
  line-height: 1;
}
.stats-row strong {
  display: block;
  font-size: 20px;
  font-weight: 900;
  color: var(--ef-ink);
  margin-top: 4px;
}
.stats-row small {
  font-size: 11px;
  font-weight: 800;
  color: var(--ef-ink-muted);
  text-transform: uppercase;
}

.side-card {
  background: #ffffff;
  border: 2px solid var(--ef-border);
  box-shadow: 0 4px 0 var(--ef-border);
  border-radius: 22px;
  padding: 20px;
}
.side-card .card-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.side-card h2 {
  font-size: 17px;
  font-weight: 900;
  margin: 0;
  color: var(--ef-ink);
}
.side-card p:not(.overline) {
  font-size: 13px;
  color: var(--ef-ink-muted);
  margin: 8px 0 16px;
  font-weight: 600;
}
.sun-mark {
  font-size: 24px;
}

/* Progress bars */
.practice-page progress {
  appearance: none;
  border: 0;
  height: 14px;
  width: 100%;
  border-radius: 20px;
  overflow: hidden;
  background: var(--ef-border);
}
.practice-page progress::-webkit-progress-bar {
  background: var(--ef-border);
  border-radius: 20px;
}
.practice-page progress::-webkit-progress-value {
  background: var(--ef-green);
  border-radius: 20px;
  transition: width 0.4s cubic-bezier(0.2, 0.8, 0.2, 1);
}
.practice-page progress::-moz-progress-bar {
  background: var(--ef-green);
  border-radius: 20px;
}

.goal-progress {
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  font-weight: 800;
  color: var(--ef-ink-muted);
  margin-bottom: 8px;
}
.goal-progress b {
  color: var(--ef-green-shadow);
}

.week-dots {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 6px;
  margin: 18px 0 12px;
}
.week-day small {
  display: block;
  font-size: 11px;
  font-weight: 900;
  color: var(--ef-ink-muted);
  margin-bottom: 6px;
  text-align: center;
}
.week-day > span {
  display: grid;
  place-items: center;
  height: 32px;
  width: 32px;
  border-radius: 50%;
  font-size: 13px;
  font-weight: 900;
  color: var(--ef-ink-muted);
  background: var(--ef-bg-subtle);
  border: 2px solid var(--ef-border);
  margin: 0 auto;
}
.week-day.today > span {
  border-color: var(--ef-orange);
  color: var(--ef-orange);
  background: #fff8eb;
}
.week-day.done > span {
  background: var(--ef-green);
  border-color: var(--ef-green-shadow);
  color: #ffffff;
}
.streak-note {
  font-size: 12px !important;
  font-weight: 800 !important;
  color: var(--ef-orange-shadow) !important;
  margin-bottom: 0 !important;
  border-top: 1px solid var(--ef-border);
  padding-top: 12px;
  text-align: center;
}

/* Journey Card (Levels) */
.journey-card {
  background: linear-gradient(135deg, #ffffff, #f5f9ff);
  border-color: #c9e4ff;
}
.journey-card .overline {
  font-size: 11px;
  font-weight: 900;
  color: var(--ef-blue);
  letter-spacing: 1px;
  margin: 0 0 6px;
}
.journey-card progress::-webkit-progress-value {
  background: var(--ef-blue);
}
.journey-card progress::-moz-progress-bar {
  background: var(--ef-blue);
}
.journey-card small {
  display: block;
  font-size: 12px;
  font-weight: 800;
  color: var(--ef-blue-shadow);
  margin-top: 10px;
}

/* Badges */
.badge-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  padding: 14px 0 6px;
}
.badge {
  text-align: center;
  background: var(--ef-bg-subtle);
  border: 2px solid var(--ef-border);
  border-radius: 16px;
  padding: 12px 8px;
}
.badge-medal {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  margin: 0 auto 6px;
  background: #ffffff;
  border-radius: 50%;
  font-size: 22px;
  border: 2px solid var(--ef-border);
}
.badge.earned {
  background: var(--ef-yellow-light);
  border-color: var(--ef-yellow-shadow);
}
.badge.earned .badge-medal {
  background: var(--ef-yellow);
  border-color: var(--ef-yellow-shadow);
  box-shadow: 0 3px 0 var(--ef-yellow-shadow);
}
.badge strong {
  display: block;
  font-size: 12px;
  font-weight: 900;
  color: var(--ef-ink);
}
.badge small {
  font-size: 10px;
  font-weight: 700;
  color: var(--ef-ink-muted);
}
.reward-note {
  font-size: 11px !important;
  color: var(--ef-ink-muted) !important;
  text-align: center;
  margin: 10px 0 0 !important;
}

.gentle-note {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 14px;
  color: var(--ef-green-shadow);
  font-weight: 800;
  font-size: 14px;
}

/* ---------------- Practice Footer ---------------- */
.practice-footer {
  max-width: 1380px;
  margin: 0 auto;
  padding: 24px;
  border-top: 2px solid var(--ef-border);
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  font-weight: 800;
  color: var(--ef-ink-muted);
}
.practice-footer a {
  color: var(--ef-blue);
  text-decoration: none;
}

/* ---------------- FULL-SCREEN LESSON DIALOG (Duolingo Style!) ---------------- */
#lesson-dialog:not([open]) {
  display: none !important;
}
#lesson-dialog[open] {
  display: flex !important;
  flex-direction: column;
}
#lesson-dialog {
  border: none;
  padding: 0;
  border-radius: 28px;
  background: #ffffff;
  color: var(--ef-ink);
  width: min(840px, calc(100% - 32px));
  max-height: calc(100vh - 48px);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
  overflow: hidden;
  position: fixed;
  inset: 0;
  margin: auto;
}
#lesson-dialog::backdrop {
  background: rgba(0, 0, 0, 0.45);
  backdrop-filter: blur(8px);
}

.session-shell {
  min-height: 600px;
  max-height: calc(100vh - 48px);
  display: flex;
  flex-direction: column;
}

.session-header {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 20px 28px;
  border-bottom: 2px solid var(--ef-border);
}
.icon-button {
  width: 44px;
  height: 44px;
  background: transparent;
  border: none;
  font-size: 32px;
  font-weight: 900;
  color: var(--ef-ink-muted);
  cursor: pointer;
  border-radius: 12px;
  display: grid;
  place-items: center;
  transition: all 0.15s ease;
}
.icon-button:hover {
  background: var(--ef-bg-subtle);
  color: var(--ef-ink);
}

.session-progress {
  flex: 1;
}
.session-progress span {
  display: block;
  font-size: 11px;
  font-weight: 900;
  letter-spacing: 1.2px;
  color: var(--ef-ink-muted);
  margin-bottom: 6px;
  text-transform: uppercase;
}
.session-progress progress {
  height: 16px;
  border-radius: 20px;
}
.session-progress progress::-webkit-progress-value {
  background: var(--ef-green);
  border-radius: 20px;
}

.combo-badge {
  font-size: 13px;
  font-weight: 900;
  padding: 6px 14px;
  border-radius: 16px;
  background: var(--ef-yellow-light);
  color: #725000;
  border: 2px solid var(--ef-yellow-shadow);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.combo-badge.is-hot {
  background: var(--ef-orange);
  color: #ffffff;
  border-color: var(--ef-orange-shadow);
  animation: combo-wiggle 0.5s ease-in-out;
}

@keyframes combo-wiggle {
  0%, 100% { transform: scale(1) rotate(0); }
  25% { transform: scale(1.15) rotate(-5deg); }
  75% { transform: scale(1.15) rotate(5deg); }
}

.session-xp {
  font-size: 14px;
  font-weight: 900;
  color: var(--ef-green-shadow);
  background: var(--ef-green-light);
  padding: 6px 12px;
  border-radius: 14px;
}

/* Session Main Body */
.session-main {
  padding: 28px 48px;
  flex: 1;
  overflow-y: auto;
}

/* Coach Flo inside lesson */
.session-coach {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 24px;
  background: var(--ef-bg-subtle);
  border: 2px solid var(--ef-border);
  padding: 12px 18px;
  border-radius: 20px;
}
.coach-face {
  width: 58px;
  flex-shrink: 0;
}
.coach-bubble {
  font-size: 14px;
  font-weight: 800;
  color: var(--ef-ink);
  line-height: 1.4;
}
.coach-wave {
  display: none;
}

.session-main .overline {
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 1.5px;
  color: var(--ef-blue);
  margin-bottom: 8px;
}
.session-main h2 {
  font-size: 26px;
  font-weight: 900;
  margin: 0 0 20px;
  color: var(--ef-ink);
  outline: none;
  line-height: 1.3;
}

.exercise-subtext {
  font-size: 15px;
  font-weight: 700;
  color: var(--ef-ink-muted);
  margin-bottom: 20px;
}

/* ---------------- Question Widgets ---------------- */

/* Reveal phrase */
.reveal-card {
  width: 100%;
  min-height: 180px;
  background: var(--ef-yellow-light);
  border: 3px dashed var(--ef-yellow-shadow);
  border-radius: 24px;
  padding: 24px;
  text-align: center;
  cursor: pointer;
  font-family: var(--ef-font);
  transition: all 0.15s ease;
}
.reveal-card:hover {
  transform: translateY(-2px);
  background: #fffae6;
}
.reveal-card small {
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 1px;
  color: #7a5a00;
}
.reveal-card strong {
  display: block;
  font-size: 28px;
  font-weight: 900;
  color: var(--ef-ink);
  margin: 18px 0;
}
.reveal-card.revealed {
  border-style: solid;
  border-color: var(--ef-green);
  background: var(--ef-green-light);
}

.meaning {
  font-size: 15px;
  font-weight: 700;
  color: var(--ef-ink);
  margin: 16px 0;
  background: var(--ef-bg-subtle);
  padding: 14px 18px;
  border-radius: 16px;
}

.quiet-button, .hear-button {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: #ffffff;
  border: 2px solid var(--ef-blue);
  box-shadow: 0 3px 0 var(--ef-blue);
  color: var(--ef-blue);
  font-family: var(--ef-font);
  font-size: 14px;
  font-weight: 900;
  padding: 10px 18px;
  border-radius: 16px;
  cursor: pointer;
  margin-top: 10px;
  transition: all 0.1s;
}
.quiet-button:hover, .hear-button:hover {
  background: var(--ef-blue-light);
  transform: translateY(-1px);
}
.quiet-button:active, .hear-button:active {
  transform: translateY(3px);
  box-shadow: 0 0 0 var(--ef-blue);
}

/* MCQ Options (Duolingo Big Cards) */
.options {
  display: grid;
  gap: 12px;
}
.option {
  display: flex;
  align-items: center;
  gap: 16px;
  width: 100%;
  min-height: 64px;
  padding: 14px 20px;
  background: #ffffff;
  border: 2px solid var(--ef-border);
  box-shadow: 0 4px 0 var(--ef-border);
  border-radius: 18px;
  font-family: var(--ef-font);
  font-size: 16px;
  font-weight: 800;
  color: var(--ef-ink);
  text-align: left;
  cursor: pointer;
  transition: all 0.1s ease;
}
.option b {
  display: grid;
  place-items: center;
  width: 32px;
  height: 32px;
  border-radius: 10px;
  border: 2px solid var(--ef-border);
  color: var(--ef-ink-muted);
  font-size: 13px;
  font-weight: 900;
  flex-shrink: 0;
}
.option:hover:not(:disabled) {
  background: var(--ef-bg-subtle);
  border-color: #c9c9c9;
  transform: translateY(-1px);
  box-shadow: 0 5px 0 #c9c9c9;
}
.option[aria-pressed="true"] {
  background: var(--ef-blue-light);
  border-color: var(--ef-blue);
  box-shadow: 0 4px 0 var(--ef-blue-shadow);
  color: var(--ef-blue-shadow);
}
.option[aria-pressed="true"] b {
  background: var(--ef-blue);
  border-color: var(--ef-blue);
  color: #ffffff;
}

/* Checked states */
.option.good {
  background: var(--ef-green-bg) !important;
  border-color: var(--ef-green) !important;
  box-shadow: 0 4px 0 var(--ef-green-shadow) !important;
  color: var(--ef-green-shadow) !important;
}
.option.good b {
  background: var(--ef-green) !important;
  border-color: var(--ef-green) !important;
  color: #ffffff !important;
}
.option.bad {
  background: var(--ef-red-bg) !important;
  border-color: var(--ef-red) !important;
  box-shadow: 0 4px 0 var(--ef-red-shadow) !important;
  color: var(--ef-red-shadow) !important;
  animation: opt-shake 0.4s ease-in-out;
}
.option.bad b {
  background: var(--ef-red) !important;
  border-color: var(--ef-red) !important;
  color: #ffffff !important;
}

@keyframes opt-shake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-6px); }
  75% { transform: translateX(6px); }
}

.natural-quote {
  font-size: 24px;
  font-weight: 900;
  background: var(--ef-yellow-light);
  border: 2px solid var(--ef-yellow-shadow);
  border-radius: 18px;
  padding: 20px;
  color: #553e00;
  margin-bottom: 22px;
  text-align: center;
}

/* Sentence Ordering (Tiles) */
.build-line, .word-bank {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  min-height: 84px;
  padding: 16px;
  border-radius: 20px;
  margin: 16px 0;
}
.build-line {
  background: var(--ef-bg-subtle);
  border: 2px dashed var(--ef-border-thick);
}
.build-line:empty::before {
  content: "Tap or drag words here to build your sentence";
  font-size: 14px;
  font-weight: 700;
  color: var(--ef-ink-muted);
  align-self: center;
}
.word-bank {
  background: transparent;
  padding: 8px 0;
}
.tile {
  font-family: var(--ef-font);
  font-size: 16px;
  font-weight: 900;
  color: var(--ef-ink);
  background: #ffffff;
  border: 2px solid var(--ef-border);
  box-shadow: 0 4px 0 var(--ef-border);
  border-radius: 14px;
  padding: 12px 18px;
  cursor: pointer;
  user-select: none;
  touch-action: none;
  transition: all 0.1s ease;
}
.tile:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 6px 0 var(--ef-border);
}
.tile:active:not(:disabled) {
  transform: translateY(3px);
  box-shadow: 0 1px 0 var(--ef-border);
}
.tile.is-dragging {
  opacity: 0.3;
}
.drag-ghost {
  position: fixed;
  pointer-events: none;
  z-index: 9999;
  opacity: 0.9;
  transform: translate(-50%, -50%);
}
.tile-hint {
  font-size: 12px;
  color: var(--ef-ink-muted);
  font-weight: 700;
}

/* Speaking Exercise */
.speaking-prompt {
  background: var(--ef-blue-light);
  border: 2px solid var(--ef-blue);
  border-radius: 20px;
  padding: 24px;
  font-size: 18px;
  font-weight: 800;
  color: var(--ef-blue-shadow);
  margin-bottom: 20px;
}
.summary-phrase {
  font-size: 24px;
  font-weight: 900;
  color: var(--ef-ink);
  margin: 16px 0;
}
.check-row {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 15px;
  font-weight: 800;
  color: var(--ef-ink);
  margin: 24px 0;
  cursor: pointer;
}
.check-row input {
  width: 24px;
  height: 24px;
  accent-color: var(--ef-green);
  cursor: pointer;
}

/* Summary Screen */
.summary {
  text-align: center;
  padding: 20px 0;
}
.summary-medal {
  width: 90px;
  height: 90px;
  margin: 0 auto 20px;
  background: var(--ef-yellow);
  box-shadow: 0 8px 0 var(--ef-yellow-shadow);
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-size: 48px;
  color: #553e00;
  animation: stone-bounce 1.5s infinite;
}
.summary-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin: 28px 0;
}
.summary-stats > div {
  background: var(--ef-bg-subtle);
  border: 2px solid var(--ef-border);
  box-shadow: 0 4px 0 var(--ef-border);
  border-radius: 18px;
  padding: 16px;
}
.summary-stats b {
  display: block;
  font-size: 26px;
  font-weight: 900;
  color: var(--ef-green-shadow);
}
.summary-stats small {
  font-size: 11px;
  font-weight: 800;
  color: var(--ef-ink-muted);
  text-transform: uppercase;
}
.summary-note {
  font-size: 14px;
  font-weight: 800;
  color: var(--ef-ink-muted);
}

/* ---------------- Duolingo Bottom Feedback Drawer ---------------- */
.session-footer {
  padding: 20px 32px;
  background: #ffffff;
  border-top: 2px solid var(--ef-border);
  transition: background 0.25s ease, border-color 0.25s ease;
}
.session-footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}
.session-footer #feedback {
  font-size: 15px;
  font-weight: 800;
  color: var(--ef-ink);
  flex: 1;
  line-height: 1.4;
}
.feedback-title {
  display: block;
  font-size: 17px;
  font-weight: 900;
  margin-bottom: 2px;
}

/* Correct feedback drawer (Bright Green) */
.session-footer.correct {
  background: var(--ef-green-bg);
  border-top-color: var(--ef-green);
}
.session-footer.correct #feedback {
  color: var(--ef-green-shadow);
}
.session-footer.correct .primary {
  background: var(--ef-green);
  box-shadow: 0 5px 0 var(--ef-green-shadow);
}

/* Incorrect feedback drawer (Soft Red) */
.session-footer.incorrect {
  background: var(--ef-red-bg);
  border-top-color: var(--ef-red);
}
.session-footer.incorrect #feedback {
  color: var(--ef-red-shadow);
}
.session-footer.incorrect .primary {
  background: var(--ef-red);
  box-shadow: 0 5px 0 var(--ef-red-shadow);
}

/* Toast */
.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 10000;
  background: #ffffff;
  color: var(--ef-ink);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
  border: 2px solid var(--ef-border);
  padding: 14px 24px;
  border-radius: 16px;
  font-size: 14px;
  font-weight: 800;
  max-width: 90%;
  text-align: center;
}

.storage-warning {
  background: var(--ef-yellow-light);
  border: 2px solid var(--ef-yellow-shadow);
  border-radius: 16px;
  color: #6d5000;
  padding: 14px 18px;
  font-size: 13px;
  font-weight: 800;
  margin-bottom: 20px;
}

/* ---------------- Responsive & Android Optimization ---------------- */
html, body.practice-page {
  overflow-x: clip !important;
  max-width: 100vw !important;
  width: 100% !important;
}

@media (max-width: 1100px) {
  .app-layout {
    grid-template-columns: minmax(0, 1fr) 280px;
    gap: 24px;
  }
  .learn-sidebar {
    display: none;
  }
}

@media (max-width: 780px) {
  .practice-header {
    padding: 8px 14px !important;
    gap: 8px !important;
    min-height: 62px !important;
    justify-content: space-between !important;
  }
  .practice-header nav {
    display: none !important;
  }
  .practice-header .brand {
    font-size: 17px !important;
    gap: 6px !important;
  }
  .practice-header .brand small {
    display: none !important;
  }
  .top-stats {
    gap: 6px !important;
  }
  .top-stat {
    padding: 4px 7px !important;
    font-size: 12px !important;
  }
  .top-stat.xp {
    display: none !important;
  }
  .sound-toggle {
    padding: 5px 8px !important;
    font-size: 11px !important;
  }
  .app-layout {
    grid-template-columns: 1fr !important;
    padding: 14px 12px 40px !important;
    gap: 20px !important;
  }
  .page-heading {
    flex-direction: column !important;
    align-items: flex-start !important;
    gap: 12px !important;
  }
  .page-heading h1 {
    font-size: 28px !important;
  }
  .chapter-tag {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    text-align: left !important;
  }
  .today-card {
    grid-template-columns: 1fr !important;
    padding: 18px 16px !important;
  }
  .lesson-meta {
    flex-wrap: wrap !important;
    gap: 6px !important;
  }
  .mentor-zone {
    min-height: auto !important;
    padding: 16px 0 0 !important;
    width: 100% !important;
    overflow: hidden !important;
  }
  .phrase-preview {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }
  .section-title {
    flex-direction: column !important;
    align-items: flex-start !important;
    gap: 8px !important;
  }
  .unit-tabs {
    flex-wrap: wrap !important;
    gap: 8px !important;
  }
  .session-modal {
    width: 100% !important;
    max-width: 100% !important;
    height: 100% !important;
    max-height: 100% !important;
    border-radius: 0 !important;
  }
  .session-main {
    padding: 16px !important;
  }
  .session-footer {
    padding: 14px 16px !important;
  }
  .session-footer-inner {
    flex-direction: column !important;
    align-items: stretch !important;
    gap: 10px !important;
  }
  .session-footer-inner .primary {
    width: 100% !important;
  }
}

@media (max-width: 480px) {
  .practice-header {
    padding: 6px 10px !important;
  }
  .practice-header .brand {
    font-size: 16px !important;
  }
  .top-stats {
    gap: 4px !important;
  }
  .top-stat {
    padding: 4px 6px !important;
    font-size: 11px !important;
  }
  .page-heading h1 {
    font-size: 25px !important;
  }
  .today-copy h2 {
    font-size: 22px !important;
  }
  .primary, button#start-today {
    width: 100% !important;
  }
}