:root {
  --ink: #12211d;
  --muted: #64736e;
  --paper: #fbfbf6;
  --line: #dbe2dc;
  --leaf: #1f6f5b;
  --leaf-dark: #10231f;
  --gold: #d79b35;
  --coral: #cc6045;
  --sky: #dceef2;
  --white: #ffffff;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background:
    radial-gradient(circle at 20% 0%, rgba(220, 238, 242, .9), transparent 28rem),
    linear-gradient(180deg, #f7faf5 0%, #eef3ed 100%);
}

button, input, select, textarea { font: inherit; }

.app-shell {
  width: min(100%, 460px);
  min-height: 100vh;
  margin: 0 auto;
  padding: max(16px, env(safe-area-inset-top)) 16px max(18px, env(safe-area-inset-bottom));
}

.topbar {
  display: grid;
  grid-template-columns: 44px 1fr 44px;
  gap: 8px;
  align-items: center;
  padding: 8px 0 18px;
}

.topbar h1, .hero h2, .practice-card h2, .complete-card h2, .source-note h2 {
  margin: 0;
  letter-spacing: 0;
}

.topbar h1 { font-size: 1.45rem; }

.eyebrow {
  margin: 0 0 3px;
  color: var(--leaf);
  font-size: .76rem;
  font-weight: 800;
  text-transform: uppercase;
}

.icon-button {
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--leaf-dark);
  background: rgba(255, 255, 255, .74);
  font-size: 1.4rem;
  font-weight: 800;
}

.topbar .icon-button.hidden {
  display: block !important;
  visibility: hidden;
  pointer-events: none;
}

.hidden { display: none !important; }

.sync-status {
  width: fit-content;
  margin: -8px 0 10px auto;
  padding: 5px 9px;
  border: 1px solid rgba(31, 111, 91, .18);
  border-radius: 999px;
  color: var(--leaf);
  background: rgba(255, 255, 255, .72);
  font-size: .72rem;
  font-weight: 800;
  line-height: 1.2;
}

.sync-status.pending {
  color: #7a4b0c;
  background: #f8ead2;
  border-color: rgba(122, 75, 12, .2);
}

.hero {
  display: flex;
  min-height: calc(100vh - 92px);
  flex-direction: column;
  justify-content: space-between;
  gap: 24px;
}

.login-card {
  display: grid;
  gap: 14px;
  margin-top: 34px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, .84);
}

.login-card h2 {
  margin: 0 0 4px;
  font-size: 2rem;
  line-height: 1;
}

.login-card label span {
  display: block;
  margin-bottom: 6px;
  color: var(--muted);
  font-size: .8rem;
  font-weight: 800;
}

.login-card input {
  width: 100%;
  min-height: 44px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0 12px;
  background: var(--white);
}

.hero-copy {
  padding: 28px 2px 8px;
}

.level-chip {
  display: inline-flex;
  gap: 4px;
  align-items: center;
  margin: 0 0 16px;
  padding: 8px 12px;
  border: 1px solid rgba(31, 111, 91, .22);
  border-radius: 999px;
  background: rgba(255, 255, 255, .74);
  color: var(--leaf);
  font-size: .82rem;
  font-weight: 800;
}

.hero h2 {
  max-width: 10ch;
  font-size: clamp(2.6rem, 12vw, 4.7rem);
  line-height: .94;
}

.hero-copy p:last-child {
  max-width: 27rem;
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.55;
}

.primary-actions {
  display: grid;
  gap: 12px;
}

.path-card {
  min-height: 132px;
  padding: 18px;
  border: 1px solid rgba(16, 35, 31, .08);
  border-radius: 8px;
  text-align: left;
  background: var(--white);
  box-shadow: 0 18px 38px rgba(26, 48, 42, .08);
}

.path-card span {
  color: var(--gold);
  font-size: .78rem;
  font-weight: 900;
  text-transform: uppercase;
}

.path-card strong {
  display: block;
  margin: 8px 0;
  font-size: 1.25rem;
}

.path-card small {
  display: block;
  color: var(--muted);
  font-size: .92rem;
  line-height: 1.45;
}

.screen {
  display: grid;
  gap: 16px;
  padding-bottom: 22px;
}

.toolbar, .grid-2 {
  display: grid;
  grid-template-columns: 1fr 132px;
  gap: 10px;
}

label {
  display: grid;
  gap: 7px;
  color: var(--muted);
  font-size: .78rem;
  font-weight: 800;
}

input, select, textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px 13px;
  color: var(--ink);
  background: rgba(255, 255, 255, .86);
}

textarea { resize: vertical; }

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

.verse-row {
  display: grid;
  grid-template-columns: 42px 1fr auto;
  gap: 12px;
  align-items: center;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, .82);
}

.leaderboard-card {
  margin-top: 18px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, .78);
}

.leaderboard-head {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  align-items: center;
  margin-bottom: 8px;
}

.leaderboard-head small,
.leaderboard-list > span {
  color: var(--muted);
  font-size: .78rem;
  font-weight: 800;
}

.leaderboard-list {
  display: grid;
  gap: 6px;
}

.leaderboard-row {
  display: grid;
  grid-template-columns: 24px 1fr auto;
  gap: 8px;
  align-items: center;
  min-width: 0;
  font-size: .84rem;
}

.leaderboard-row strong {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.leaderboard-row small {
  color: var(--muted);
  font-weight: 800;
  white-space: nowrap;
}

.leaderboard-row.current {
  color: var(--leaf);
}

.admin-users {
  display: grid;
  gap: 10px;
}

.admin-user-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 10px;
  align-items: center;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, .82);
}

.admin-user-row div {
  min-width: 0;
}

.admin-user-row strong,
.admin-user-row small {
  display: block;
  overflow-wrap: anywhere;
}

.admin-user-row small {
  margin-top: 4px;
  color: var(--muted);
  font-size: .78rem;
  font-weight: 800;
}

.verse-row > div:not(.mini-actions) {
  min-width: 0;
}

.rank {
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  border-radius: 999px;
  background: var(--sky);
  color: var(--leaf-dark);
  font-weight: 900;
}

.verse-row strong {
  display: block;
  overflow-wrap: anywhere;
}

.verse-row small {
  color: var(--muted);
  overflow-wrap: anywhere;
}

.progress-line {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 7px;
  color: var(--muted);
  font-size: .73rem;
  font-weight: 800;
}

.progress-line span {
  line-height: 1.25;
}

.mastery-pill {
  border-radius: 999px;
  padding: 2px 7px;
  color: var(--leaf-dark);
  background: var(--sky);
}

.mastery-pill.nuevo {
  background: #eef2ef;
  color: var(--muted);
}

.mastery-pill.aprendiendo {
  background: #fff1d8;
  color: #7a4b0c;
}

.mastery-pill.firme {
  background: #dceef2;
  color: #185462;
}

.mastery-pill.memorizado {
  background: #e6f2ec;
  color: var(--leaf);
}

.mastery-pill.dominado {
  background: var(--leaf-dark);
  color: var(--white);
}

.mini-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 6px;
}

.mini-actions button {
  min-width: 36px;
  height: 36px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--white);
  color: var(--leaf-dark);
  font-weight: 900;
}

.custom-form {
  display: grid;
  gap: 13px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, .74);
}

.primary-button, .secondary-button {
  min-height: 48px;
  border-radius: 8px;
  border: 0;
  padding: 0 16px;
  font-weight: 900;
}

.primary-button {
  background: var(--leaf-dark);
  color: var(--white);
}

.secondary-button {
  border: 1px solid var(--line);
  background: var(--white);
  color: var(--leaf-dark);
}

.full-button {
  width: 100%;
  margin: 12px 0;
}

.practice-card {
  display: grid;
  gap: 16px;
  padding: 16px;
  border-radius: 8px;
  background: var(--white);
  box-shadow: 0 18px 44px rgba(26, 48, 42, .1);
}

.complete-card {
  display: grid;
  gap: 18px;
  padding: 22px;
  border-radius: 8px;
  background: var(--white);
  box-shadow: 0 18px 44px rgba(26, 48, 42, .1);
}

.complete-card h2 {
  font-size: clamp(2.1rem, 12vw, 3.4rem);
  line-height: .98;
}

.complete-card p:not(.eyebrow) {
  margin: 0;
  color: var(--muted);
  line-height: 1.5;
}

.complete-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
}

.complete-stats div {
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfbf6;
}

.complete-stats span {
  display: block;
  font-size: 1.35rem;
  font-weight: 950;
}

.complete-stats small {
  color: var(--muted);
  font-weight: 800;
}

.practice-head {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 12px;
}

.practice-head > div:first-child {
  min-width: 0;
}

.score-pill {
  flex: 0 0 auto;
  white-space: nowrap;
  border-radius: 999px;
  padding: 8px 10px;
  background: #f8ead2;
  color: #7a4b0c;
  font-weight: 900;
}

.difficulty-tabs {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 7px;
}

.difficulty-tabs button {
  height: 38px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--paper);
  font-weight: 900;
}

.difficulty-tabs .active {
  border-color: var(--leaf);
  background: var(--leaf);
  color: var(--white);
}

.mode-tabs {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 7px;
}

.mode-tabs button {
  min-height: 38px;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0 8px;
  color: var(--leaf-dark);
  background: var(--paper);
  font-size: .78rem;
  font-weight: 900;
}

.mini-actions .delete-button {
  border-color: #f1c6c6;
  color: #a63838;
}

.mini-actions .trophy-button {
  width: auto;
  min-width: 42px;
  padding: 0 10px;
  border-color: #c38b1f;
  color: #5a3a05;
  background: #f8ead2;
  font-size: 1rem;
}

.mini-actions .trophy-button:disabled {
  opacity: .45;
  color: var(--muted);
  background: var(--paper);
}

.mode-tabs .active {
  border-color: var(--leaf-dark);
  background: var(--leaf-dark);
  color: var(--white);
}

.mode-meta {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 8px 12px;
  color: var(--leaf);
  background: #e6f2ec;
  font-size: .82rem;
  font-weight: 900;
  text-align: center;
}

.mode-meta .mastery-timer {
  display: block;
  margin-top: 4px;
  color: #7a4b0c;
  font-size: 1.28rem;
  line-height: 1.1;
}

.mode-meta .mastery-timer.urgent {
  color: var(--coral);
}

.memory-text {
  min-height: 178px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 18px;
  background: #fbfbf6;
  font-size: 1.15rem;
  line-height: 1.8;
}

.flashcard-ref,
.flashcard-text {
  font-weight: 900;
}

.flashcard-ref {
  display: grid;
  min-height: 120px;
  place-items: center;
  color: var(--leaf-dark);
  font-size: 1.45rem;
  text-align: center;
}

.flashcard-text {
  color: var(--ink);
  line-height: 1.65;
}

.initial-token {
  display: inline-block;
  min-width: 1.2em;
  color: var(--leaf-dark);
  font-weight: 900;
}

.order-answer {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  min-height: 64px;
  align-items: center;
  border: 1px dashed var(--line);
  border-radius: 8px;
  padding: 12px;
  background: #fbfbf6;
}

.order-answer span {
  color: var(--muted);
  font-size: .9rem;
  font-weight: 800;
}

.order-answer button {
  min-height: 36px;
  border: 1px solid var(--leaf);
  border-radius: 999px;
  padding: 0 12px;
  color: var(--leaf-dark);
  background: #e6f2ec;
  font-weight: 900;
}

.blank {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 4px;
  min-width: 78px;
  min-height: 34px;
  align-items: center;
  justify-content: center;
  margin: 0 2px;
  padding: 3px;
  border: 1px dashed var(--leaf);
  border-radius: 7px;
  color: var(--leaf);
  background: rgba(31, 111, 91, .07);
  font-weight: 900;
  vertical-align: middle;
}

.blank.filled {
  border-style: solid;
  background: #e6f2ec;
}

.blank.active-choice {
  border-color: #2f80ed;
  background: rgba(47, 128, 237, .08);
  box-shadow: 0 0 0 3px rgba(47, 128, 237, .12);
}

.blank-slot {
  position: relative;
  display: inline-grid;
  min-width: 68px;
  min-height: 28px;
  place-items: center;
  border-radius: 5px;
  padding: 0 8px;
  color: var(--leaf);
  background: rgba(255, 255, 255, .62);
}

.blank-slot:empty::after {
  content: "";
  width: 34px;
  height: 2px;
  border-radius: 999px;
  background: rgba(31, 111, 91, .38);
}

.blank-slot.filled {
  color: var(--leaf-dark);
  background: rgba(255, 255, 255, .9);
}

.blank-slot.drop-left::before,
.blank-slot.drop-right::after {
  content: "";
  position: absolute;
  top: 3px;
  bottom: 3px;
  width: 3px;
  border-radius: 999px;
  background: var(--gold);
  box-shadow: 0 0 0 3px rgba(215, 155, 53, .2);
}

.blank-slot.drop-replace {
  outline: 2px solid #2f80ed;
  background: rgba(47, 128, 237, .12);
  color: #174b91;
  box-shadow: 0 0 0 4px rgba(47, 128, 237, .12);
}

.blank-slot.active-choice {
  outline: 2px solid #2f80ed;
  background: rgba(47, 128, 237, .14);
  color: #174b91;
}

.blank-slot.drop-left::before {
  left: -4px;
}

.blank-slot.drop-right::after {
  right: -4px;
}

.word-bank {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  touch-action: none;
}

.word-bank button {
  min-height: 38px;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0 12px;
  background: var(--white);
  font-weight: 800;
  cursor: grab;
  touch-action: none;
  user-select: none;
}

.word-bank button:active {
  cursor: grabbing;
}

.word-bank button:disabled {
  opacity: .45;
}

.drag-ghost {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 20;
  pointer-events: none;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 8px 12px;
  color: var(--leaf-dark);
  background: var(--white);
  box-shadow: 0 12px 26px rgba(26, 48, 42, .18);
  font-weight: 900;
}

.practice-actions {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 10px;
}

.feedback {
  min-height: 22px;
  margin: 0;
  color: var(--coral);
  font-weight: 800;
}

.feedback.good { color: var(--leaf); }

.answer-review {
  display: grid;
  gap: 8px;
  color: var(--ink);
  font-weight: 700;
}

.answer-review p {
  margin: 0;
}

.answer-review div {
  display: grid;
  gap: 2px;
  padding: 8px;
  border-radius: 8px;
  background: rgba(255, 255, 255, .7);
}

.answer-review span {
  color: var(--muted);
  font-weight: 800;
}

.answer-review.good div {
  background: rgba(220, 238, 242, .45);
}

.review-card {
  gap: 18px;
}

.review-body {
  display: grid;
  gap: 10px;
}

.recall-input {
  min-height: 156px;
  font-size: 1rem;
  line-height: 1.55;
}

.reference-picker {
  display: grid;
  gap: 12px;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
}

.stats-grid div, .source-note {
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, .82);
}

.stats-grid span {
  display: block;
  font-size: 2rem;
  font-weight: 950;
}

.stats-grid small {
  color: var(--muted);
  font-weight: 800;
}

.source-note p {
  color: var(--muted);
  line-height: 1.55;
}

.source-note .wait-note {
  margin-top: 10px;
  color: #7a4b0c;
  font-weight: 800;
}

.source-note a {
  color: var(--leaf);
  font-weight: 900;
}

@media (max-width: 420px) {
  .toolbar, .grid-2 {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 360px) {
  .verse-row {
    grid-template-columns: 42px 1fr;
  }
  .admin-user-row {
    grid-template-columns: 1fr;
  }
  .mini-actions {
    grid-column: 2;
    justify-content: flex-start;
  }
  .hero h2 {
    font-size: 2.5rem;
  }
}