:root {
  --ink: #17211d;
  --muted: #63716b;
  --paper: #f7f4eb;
  --panel: #fffdf6;
  --line: #d9d1bf;
  --green: #2d7a55;
  --green-dark: #14533b;
  --blue: #3065a8;
  --gold: #d89b25;
  --rose: #b64e5f;
  --capy: #8e6749;
  --capy-dark: #563c2d;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background:
    linear-gradient(135deg, rgba(48, 101, 168, 0.14), transparent 32%),
    linear-gradient(315deg, rgba(216, 155, 37, 0.18), transparent 35%),
    var(--paper);
}

button,
input {
  font: inherit;
}

button {
  cursor: pointer;
}

.app-shell {
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
  min-height: 100vh;
}

.side-menu {
  display: flex;
  flex-direction: column;
  gap: 24px;
  padding: 24px;
  background: #173326;
  color: #f8f1dc;
  border-right: 1px solid rgba(255, 255, 255, 0.14);
}

.brand-lockup {
  display: flex;
  align-items: center;
  gap: 14px;
}

.brand-lockup h1,
.topbar h2,
.section-head h2,
.hero-copy h3,
.quiz-panel h3 {
  margin: 0;
  letter-spacing: 0;
  line-height: 1.05;
}

.brand-lockup h1 {
  font-size: 1.6rem;
}

.eyebrow {
  margin: 0 0 6px;
  color: currentColor;
  font-size: 0.74rem;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
  opacity: 0.72;
}

.capy-mark {
  position: relative;
  flex: 0 0 auto;
  width: 58px;
  height: 50px;
}

.capy-face {
  position: absolute;
  left: 6px;
  right: 4px;
  bottom: 4px;
  height: 36px;
  background: var(--capy);
  border: 3px solid rgba(0, 0, 0, 0.2);
  border-radius: 8px;
}

.capy-ear {
  position: absolute;
  top: 2px;
  width: 17px;
  height: 17px;
  background: var(--capy-dark);
  border-radius: 5px;
}

.capy-ear.left {
  left: 9px;
}

.capy-ear.right {
  right: 8px;
}

.capy-nose {
  position: absolute;
  left: 23px;
  bottom: 13px;
  width: 17px;
  height: 10px;
  background: #221914;
  border-radius: 8px;
  box-shadow:
    -14px -8px 0 -5px #221914,
    14px -8px 0 -5px #221914;
}

.menu-list {
  display: grid;
  gap: 10px;
}

.menu-button {
  display: grid;
  grid-template-columns: 38px minmax(0, 1fr);
  align-items: center;
  min-height: 52px;
  gap: 10px;
  padding: 8px 10px;
  color: #f8f1dc;
  text-align: left;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 8px;
}

.menu-button:hover,
.menu-button.is-active {
  background: #f8f1dc;
  color: #173326;
}

.menu-icon {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  color: #173326;
  font-weight: 900;
  background: var(--gold);
  border-radius: 8px;
}

.daily-chip {
  display: grid;
  gap: 6px;
  margin-top: auto;
  padding: 14px;
  color: #173326;
  background: #f8f1dc;
  border-radius: 8px;
}

.daily-chip span {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 800;
  text-transform: uppercase;
}

.content-area {
  display: grid;
  grid-template-rows: auto 1fr;
  gap: 22px;
  padding: 28px;
}

.topbar {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: center;
}

.topbar h2 {
  max-width: 720px;
  font-size: 2.1rem;
}

.streak-box,
.score-pill {
  display: grid;
  place-items: center;
  min-width: 92px;
  min-height: 64px;
  padding: 8px 12px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.streak-box span,
.score-pill {
  color: var(--muted);
  font-weight: 800;
}

.streak-box strong,
.score-pill strong {
  color: var(--green-dark);
  font-size: 1.5rem;
}

.screen {
  display: none;
}

.screen.is-active {
  display: grid;
  gap: 18px;
}

.hero-band {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 280px;
  gap: 18px;
  align-items: stretch;
  min-height: 250px;
  padding: 20px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.hero-copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 14px;
}

.hero-copy h3 {
  font-size: 2rem;
}

.hero-copy p,
.lesson-card span,
.phrase-card span,
.feedback-line,
.quiz-label {
  color: var(--muted);
}

.lesson-pill,
.card-tag {
  width: fit-content;
  padding: 6px 9px;
  color: #fff;
  font-size: 0.76rem;
  font-weight: 900;
  text-transform: uppercase;
  background: var(--blue);
  border-radius: 8px;
}

.language-tile {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  min-height: 210px;
}

.language-tile span {
  display: grid;
  place-items: center;
  min-height: 96px;
  color: #fff;
  font-size: 1.35rem;
  font-weight: 900;
  background: var(--green);
  border-radius: 8px;
}

.language-tile span:nth-child(2) {
  background: var(--blue);
}

.language-tile span:nth-child(3) {
  background: var(--rose);
}

.language-tile span:nth-child(4) {
  background: var(--gold);
  color: #20190c;
}

.primary-action,
.secondary-action,
.choice-button {
  min-height: 46px;
  padding: 10px 16px;
  color: #fff;
  font-weight: 900;
  background: var(--green);
  border: 1px solid transparent;
  border-radius: 8px;
}

.primary-action:hover,
.secondary-action:hover,
.choice-button:hover {
  filter: brightness(1.05);
  transform: translateY(-1px);
}

.secondary-action {
  color: var(--ink);
  background: #f5d48a;
  border-color: #d7b054;
}

.lesson-grid,
.word-grid,
.choice-grid,
.progress-layout {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.lesson-card,
.word-card,
.phrase-card,
.practice-panel,
.quiz-panel,
.progress-panel {
  display: grid;
  gap: 10px;
  padding: 16px;
  text-align: left;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.lesson-card {
  min-height: 150px;
}

.lesson-card strong,
.word-card strong,
.phrase-card strong,
.progress-panel strong {
  font-size: 1.25rem;
}

.lesson-card:hover,
.word-card:hover {
  border-color: var(--green);
  box-shadow: 0 10px 26px rgba(23, 33, 29, 0.08);
}

.section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.word-card {
  min-height: 128px;
}

.word-card span {
  color: var(--muted);
}

.practice-panel,
.quiz-panel {
  gap: 18px;
  max-width: 760px;
}

.answer-box {
  display: grid;
  gap: 8px;
  color: var(--muted);
  font-weight: 800;
}

.answer-box input {
  width: 100%;
  min-height: 52px;
  padding: 12px 14px;
  color: var(--ink);
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.practice-actions {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}

.feedback-line {
  margin: 0;
  font-weight: 800;
}

.feedback-line.is-good {
  color: var(--green-dark);
}

.feedback-line.is-bad {
  color: var(--rose);
}

.quiz-panel h3 {
  font-size: 2.2rem;
}

.choice-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.choice-button {
  color: var(--ink);
  background: #fff;
  border-color: var(--line);
}

.choice-button.is-correct {
  color: #fff;
  background: var(--green);
}

.choice-button.is-wrong {
  color: #fff;
  background: var(--rose);
}

.progress-panel {
  min-height: 122px;
}

.progress-panel span {
  color: var(--muted);
  font-weight: 800;
}

.progress-panel strong {
  color: var(--green-dark);
  font-size: 2rem;
}

.progress-track {
  overflow: hidden;
  height: 18px;
  background: #e3dac7;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.progress-track span {
  display: block;
  width: 0;
  height: 100%;
  background: linear-gradient(90deg, var(--green), var(--blue), var(--gold));
}

@media (max-width: 860px) {
  .app-shell {
    grid-template-columns: 1fr;
  }

  .side-menu {
    border-right: 0;
  }

  .menu-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .daily-chip {
    margin-top: 0;
  }

  .topbar,
  .section-head {
    align-items: flex-start;
    flex-direction: column;
  }

  .hero-band,
  .lesson-grid,
  .word-grid,
  .progress-layout {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 540px) {
  .content-area,
  .side-menu {
    padding: 16px;
  }

  .menu-list,
  .choice-grid {
    grid-template-columns: 1fr;
  }

  .topbar h2,
  .hero-copy h3,
  .quiz-panel h3 {
    font-size: 1.55rem;
  }
}