:root {
  --bg: #f3f7ff;
  --paper: #ffffff;
  --ink: #10243e;
  --muted: #4d6483;
  --brand: #1f5fbf;
  --brand-2: #4ea3ff;
  --line: #d5e0f2;
  --good: #1f5fbf;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: 'DM Sans', sans-serif;
  color: var(--ink);
  background: radial-gradient(circle at top right, #dcecff 0%, var(--bg) 48%, #eef4ff 100%);
}

.app-wrap {
  max-width: 1200px;
  margin: 0 auto;
  padding: 14px;
}

.login-shell {
  min-height: calc(100vh - 28px);
  display: grid;
  place-items: center;
}

.login-panel {
  width: 100%;
  max-width: 920px;
  background: linear-gradient(165deg, #ffffff 0%, #eef5ff 60%, #e4eeff 100%);
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 12px;
  box-shadow: 0 20px 44px rgba(24, 74, 156, 0.24);
}

.login-split {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}

.login-story,
.login-form-wrap {
  border-radius: 14px;
  padding: 14px;
}

.login-story {
  background: linear-gradient(145deg, #1f5fbf 0%, #3e87ea 65%, #66b7ff 100%);
  color: #fff;
  position: relative;
  overflow: hidden;
}

.login-story::after {
  content: '';
  position: absolute;
  width: 180px;
  height: 180px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.16);
  right: -60px;
  top: -50px;
}

.login-badge {
  display: inline-block;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.42);
  background: rgba(255, 255, 255, 0.18);
  border-radius: 999px;
  padding: 6px 10px;
  position: relative;
  z-index: 2;
}

.login-panel h1 {
  font-family: 'Cormorant Garamond', serif;
  font-size: clamp(38px, 10vw, 56px);
  margin: 12px 0 8px;
  line-height: 1;
}

.login-panel p {
  margin: 0;
  color: inherit;
  line-height: 1.7;
}

.login-quote {
  margin-top: 12px;
  border-left: 4px solid rgba(255, 255, 255, 0.75);
  padding: 9px 10px;
  background: rgba(255, 255, 255, 0.18);
  border-radius: 9px;
  font-style: italic;
}

.login-keys {
  margin-top: 10px;
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}

.key-pill {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 12px;
  border: 1px solid rgba(255, 255, 255, 0.42);
  background: rgba(255, 255, 255, 0.14);
  border-radius: 999px;
  padding: 5px 9px;
}

.login-form-wrap {
  background: #fff;
  border: 1px solid var(--line);
}

.login-form-title {
  font-family: 'Cormorant Garamond', serif;
  font-size: 34px;
  font-weight: 700;
  line-height: 1;
  margin-bottom: 4px;
}

.login-form-sub {
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 8px;
}

.login-form {
  margin-top: 14px;
  display: grid;
  gap: 8px;
}

.login-form label {
  font-size: 12px;
  color: #385d8f;
  font-weight: 700;
}

.login-form input {
  width: 100%;
  border: 1.5px solid var(--line);
  border-radius: 10px;
  padding: 11px;
  font-size: 14px;
}

.login-form input:focus {
  outline: none;
  border-color: #4a84db;
  box-shadow: 0 0 0 3px rgba(74, 132, 219, 0.16);
}

.login-btn {
  margin-top: 6px;
  border: none;
  border-radius: 10px;
  background: linear-gradient(90deg, #1f5fbf, #4ea3ff);
  color: #fff;
  padding: 12px;
  font-weight: 700;
  cursor: pointer;
}

.login-error {
  color: #ad1f38;
  font-size: 12px;
}

.login-help {
  color: #4b6385;
  font-size: 11px;
}

@media (min-width: 880px) {
  .login-panel {
    padding: 14px;
  }

  .login-split {
    grid-template-columns: 1.1fr .9fr;
    gap: 12px;
  }

  .login-story,
  .login-form-wrap {
    padding: 20px;
  }
}

.hero {
  background: linear-gradient(125deg, #15479a 0%, #1f5fbf 52%, #4ea3ff 100%);
  color: #fff;
  border-radius: 18px;
  padding: 18px;
  box-shadow: 0 22px 44px rgba(20, 69, 145, 0.34);
  position: relative;
  overflow: hidden;
}

.hero::before,
.hero::after {
  content: '';
  position: absolute;
  border-radius: 999px;
  filter: blur(2px);
}

.hero::before {
  width: 220px;
  height: 220px;
  background: rgba(255, 255, 255, 0.16);
  top: -70px;
  right: -50px;
}

.hero::after {
  width: 180px;
  height: 180px;
  background: rgba(255, 255, 255, 0.12);
  bottom: -75px;
  left: -40px;
}

.hero-top {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  opacity: .92;
  position: relative;
  z-index: 2;
}

.hero h1 {
  margin: 14px 0 8px;
  font-family: 'Cormorant Garamond', serif;
  font-size: clamp(32px, 8vw, 56px);
  line-height: 1.02;
  position: relative;
  z-index: 2;
}

.hero p {
  margin: 0;
  max-width: 900px;
  line-height: 1.65;
  font-size: 15px;
  position: relative;
  z-index: 2;
}

.hero-pills {
  margin-top: 14px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  position: relative;
  z-index: 2;
}

.hero-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border: 1px solid rgba(255, 255, 255, 0.35);
  background: rgba(255, 255, 255, 0.14);
  border-radius: 999px;
  padding: 6px 10px;
  font-size: 12px;
  font-weight: 600;
}

.progress-card {
  margin-top: 14px;
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.32);
  border-radius: 12px;
  padding: 12px;
  position: relative;
  z-index: 2;
}

.progress-title {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  margin-bottom: 7px;
}

.progress-track {
  width: 100%;
  height: 10px;
  background: rgba(255, 255, 255, 0.25);
  border-radius: 99px;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, #8ed0ff, #ffffff);
  border-radius: 99px;
  transition: width .35s ease;
}

.hero-stats {
  margin-top: 14px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  position: relative;
  z-index: 2;
}

.stat-box {
  background: rgba(255, 255, 255, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.35);
  border-radius: 10px;
  padding: 10px;
  backdrop-filter: blur(2px);
}

.stat-k {
  display: block;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  opacity: .9;
  margin-bottom: 5px;
}

.stat-box strong {
  font-size: 17px;
}

.layout {
  margin-top: 20px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

@media (min-width: 960px) {
  .layout { grid-template-columns: 330px 1fr; }
  .app-wrap { padding: 24px; }
  .hero { padding: 28px; }
  .hero-stats { grid-template-columns: repeat(3, 1fr); }
}

.panel {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 16px;
}

.panel h2, .panel h3 {
  margin-top: 0;
  font-family: 'Cormorant Garamond', serif;
}

.coach-note {
  border-left: 4px solid var(--brand-2);
  background: #eff6ff;
  padding: 12px;
  border-radius: 10px;
  font-size: 14px;
  line-height: 1.6;
  margin-bottom: 12px;
}

.day-list {
  max-height: 420px;
  overflow: auto;
  display: grid;
  gap: 8px;
}

.parent-card {
  background: linear-gradient(180deg, #ffffff 0%, #f2f7ff 100%);
}

.day-btn {
  width: 100%;
  text-align: left;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #fff;
  color: var(--ink);
  padding: 10px;
  cursor: pointer;
  transition: all .2s;
}

.day-btn:hover { border-color: var(--brand); transform: translateY(-1px); }
.day-btn.active {
  border-color: var(--brand);
  background: #edf4ff;
  box-shadow: 0 2px 10px rgba(31, 95, 191, 0.16);
}

.day-head {
  display: flex;
  justify-content: space-between;
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  margin-bottom: 4px;
}

.day-title { font-weight: 600; font-size: 14px; line-height: 1.35; }
.complete-tag {
  display: inline-block;
  margin-top: 5px;
  font-size: 11px;
  color: var(--good);
}

.lesson-head h2 {
  font-size: clamp(28px, 4.8vw, 40px);
  margin-bottom: 6px;
}

.lesson-head .meta {
  font-family: 'JetBrains Mono', monospace;
  color: var(--muted);
  font-size: 12px;
  margin-bottom: 12px;
}

.block {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 14px;
  margin-top: 12px;
  background: #fff;
}

.block h3 {
  font-size: 26px;
  margin-bottom: 8px;
}

.block p { margin: 0 0 8px; line-height: 1.65; }

ul.clean {
  margin: 0;
  padding-left: 18px;
}

ul.clean li { margin-bottom: 8px; line-height: 1.6; }

.vocab-wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.chip {
  border: 1px solid #bfd5fb;
  color: #124da7;
  background: #edf4ff;
  border-radius: 999px;
  padding: 6px 10px;
  font-size: 12px;
  font-family: 'JetBrains Mono', monospace;
  cursor: pointer;
  transition: transform .16s ease, box-shadow .16s ease;
}

.chip:hover {
  transform: translateY(-1px);
  box-shadow: 0 3px 10px rgba(18, 77, 167, 0.16);
}

.micro-note {
  margin-top: 10px;
  font-size: 12px;
  color: var(--muted);
}

.lab {
  background: linear-gradient(180deg, #ffffff 0%, #f3f8ff 100%);
}

.speak-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 10px;
  align-items: center;
}

.prompt {
  border: 1px dashed #c7b89f;
  border-radius: 10px;
  padding: 10px;
  background: #fff;
  font-size: 14px;
}

.sprint {
  margin-top: 12px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  border: 1px solid var(--line);
  background: #fff;
  border-radius: 10px;
  padding: 10px;
}

.sprint-label {
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 2px;
}

.sprint-clock {
  font-family: 'JetBrains Mono', monospace;
  font-size: 27px;
  font-weight: 700;
  color: #1a56b0;
}

.sprint-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.bbc-link {
  display: inline-block;
  margin-top: 10px;
  color: #1a56b0;
  font-weight: 700;
  text-decoration: none;
}

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

.audio-grid {
  margin-top: 12px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}

.audio-card {
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 10px;
  background: #fff;
}

.audio-card h4 {
  margin: 0 0 6px;
  font-size: 16px;
}

.file-input {
  width: 100%;
  margin: 6px 0 8px;
}

.clip {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 8px;
  margin-bottom: 8px;
  background: #f9fbff;
}

.clip-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 6px;
  font-size: 12px;
}

.clip-src {
  color: var(--muted);
  font-size: 11px;
}

.mini-btn {
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #fff;
  padding: 4px 7px;
  cursor: pointer;
}

audio {
  width: 100%;
  height: 34px;
}

.exercise {
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 11px;
  margin-bottom: 10px;
  background: #fffcf5;
}

.exercise-head {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 8px;
}

.exercise-title {
  font-weight: 600;
  font-size: 14px;
}

.answer-btn, .complete-btn {
  border: none;
  border-radius: 8px;
  padding: 8px 11px;
  cursor: pointer;
  font-weight: 600;
}

.answer-btn {
  background: #e9f1ff;
  color: #1a4a94;
}

.complete-btn {
  background: var(--brand);
  color: #fff;
}

.complete-btn.done { background: #174b98; }

.quiz-card {
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 10px;
  background: #fff;
  margin-bottom: 10px;
}

.quiz-q {
  font-weight: 600;
  margin-bottom: 8px;
}

.quiz-options {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.quiz-opt {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 8px;
  text-align: left;
  background: #fff;
  cursor: pointer;
}

.quiz-opt.picked {
  border-color: #1a56b0;
  background: #eaf2ff;
}

.quiz-foot {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
}

.quiz-score {
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  color: #1a56b0;
}

.journal {
  width: 100%;
  min-height: 130px;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 11px;
  font-family: 'DM Sans', sans-serif;
  font-size: 14px;
  line-height: 1.5;
  resize: vertical;
}

.journal-actions {
  margin-top: 10px;
}

.certificate {
  border: 2px solid #1a56b0;
  background: linear-gradient(180deg, #ffffff 0%, #edf4ff 100%);
}

.confetti {
  position: fixed;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
  z-index: 30;
}

.piece {
  position: absolute;
  top: -20px;
  left: calc((var(--i) * 3.8%) - 4%);
  width: 8px;
  height: 14px;
  background: hsl(calc(var(--i) * 14), 88%, 58%);
  animation: drop 2.6s linear forwards;
  animation-delay: calc(var(--i) * 0.02s);
}

.deep {
  background: linear-gradient(180deg, #ffffff 0%, #f2f7ff 100%);
}

.culture-lens,
.challenge-call {
  margin-top: 9px;
  border-radius: 9px;
  padding: 9px 10px;
  font-size: 13px;
}

.culture-lens {
  background: #eaf2ff;
  border: 1px solid #bfd5fb;
  color: #1a4a94;
}

.challenge-call {
  background: #f3f8ff;
  border: 1px solid #d2e2ff;
  color: #24486e;
}

.material-icons-round.tiny {
  font-size: 15px;
  vertical-align: middle;
}

.easter-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}

.easter-col {
  border: 1px solid #c7dafb;
  border-radius: 10px;
  padding: 10px;
  background: #f5f9ff;
}

.easter-col h4 {
  margin: 0 0 8px;
  font-size: 18px;
}

@media (min-width: 800px) {
  .easter-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@keyframes drop {
  0% { transform: translateY(0) rotate(0deg); opacity: 1; }
  100% { transform: translateY(110vh) rotate(640deg); opacity: .9; }
}

.sample {
  margin-top: 6px;
  background: #ecfaf3;
  border: 1px solid #bde5d4;
  border-radius: 8px;
  padding: 8px;
  font-size: 13px;
  color: #0f4f39;
}

.footer-note {
  margin-top: 14px;
  font-size: 13px;
  color: var(--muted);
  line-height: 1.65;
}

@media (max-width: 720px) {
  .speak-row { grid-template-columns: 1fr; }
  .quiz-options { grid-template-columns: 1fr; }
  .quiz-foot { align-items: flex-start; flex-direction: column; }
}

@media (min-width: 900px) {
  .audio-grid { grid-template-columns: 1fr 1fr; }
}