:root {
  --color-bone: #dbd7d3;
  --color-ash: #e5e7eb;
  --color-inkstone: #2b2b2b;
  --color-graphite: #535251;
  --color-sand: #e5d5c3;
  --color-linen: #cdc0b1;
  --color-frost: #c9c8c9;
  --color-sage-stone: #82887c;
  --font-plain: Inter, "Helvetica Neue", Helvetica, Arial, ui-sans-serif, system-ui, sans-serif;

  --ink: var(--color-inkstone);
  --ink-2: var(--color-inkstone);
  --ink-3: var(--color-graphite);
  --surface: var(--color-bone);
  --surface-2: var(--color-sand);
  --paper-deep: var(--color-linen);
  --paper-high: var(--color-bone);
  --text: var(--color-inkstone);
  --muted: var(--color-graphite);
  --paper-text: var(--color-inkstone);
  --gold: var(--color-inkstone);
  --gold-2: var(--color-sage-stone);
  --gold-text: var(--color-inkstone);
  --button-text: var(--color-inkstone);
  --red: var(--color-graphite);
  --green: var(--color-sage-stone);
  --blue: var(--color-graphite);
  --violet: var(--color-graphite);
  --panel: transparent;
  --panel-strong: transparent;
  --line: var(--color-ash);
  --line-strong: var(--color-graphite);
  --shadow: none;
  --soft-shadow: none;
  --paper-fiber: none;
}

*,
*::before,
*::after {
  border-radius: 0 !important;
  box-shadow: none !important;
}

html,
body {
  background: var(--color-bone);
}

body,
button,
input,
select,
textarea {
  color: var(--color-inkstone);
  font-family: var(--font-plain);
  font-weight: 400;
}

body {
  background-image: none;
}

body.night-reading {
  --ink: #dbd7d3;
  --ink-2: #dbd7d3;
  --ink-3: #a9a6a2;
  --surface: #202020;
  --surface-2: #292929;
  --paper-deep: #161616;
  --paper-high: #202020;
  --text: #dbd7d3;
  --muted: #a9a6a2;
  --paper-text: #dbd7d3;
  --gold: #dbd7d3;
  --gold-2: #82887c;
  --gold-text: #dbd7d3;
  --button-text: #dbd7d3;
  --panel: transparent;
  --panel-strong: transparent;
  --line: #454545;
  --line-strong: #747474;
  background: #202020;
}

h1,
h2,
h3,
.home-card strong,
.card-front,
.story-latin,
.reader-latin,
.phrase-latin,
.translator-match-heading strong {
  font-family: var(--font-plain);
}

h1,
h2,
h3,
strong,
.brand,
.label,
.card-prompt,
button,
.quiet-pill,
.translator-status {
  font-weight: 700;
}

.app-shell {
  width: 100%;
  max-width: none;
  margin: 0;
  padding: 0 0 calc(66px + env(safe-area-inset-bottom));
  overflow: hidden;
}

.topbar {
  position: relative;
  display: block;
  min-height: clamp(138px, 21vw, 252px);
  padding: max(18px, env(safe-area-inset-top)) 20px 16px;
  overflow: visible;
  border-bottom: 1px solid var(--line);
}

.topbar > div {
  min-width: max-content;
}

.brand,
.label,
.card-prompt {
  color: var(--ink);
  font-size: 10px;
  line-height: 2;
  letter-spacing: 0;
  text-transform: uppercase;
}

.topbar .brand::after {
  margin-left: 10px;
  color: var(--muted);
  content: "/ Study index";
  font-weight: 400;
}

#viewTitle {
  margin: 10px 0 0 -0.055em;
  color: var(--ink);
  font-size: clamp(5.6rem, 15vw, 11.875rem);
  font-weight: 700;
  line-height: 0.82;
  letter-spacing: -0.055em;
  white-space: nowrap;
  overflow-wrap: normal;
}

.topbar > .ghost-button {
  position: absolute;
  top: max(16px, env(safe-area-inset-top));
  right: 20px;
}

main {
  width: 100%;
}

.view.active {
  display: block;
  padding: 0;
}

.view-heading {
  min-height: 118px;
  margin: 0;
  padding: 40px 20px 14px;
  align-items: flex-end;
  border-bottom: 1px solid var(--line);
}

.view-heading h2,
.home-status-header h2,
.translator-heading h2,
.upcoming-heading h2 {
  color: var(--ink);
  font-family: var(--font-plain);
  font-size: clamp(2rem, 4.5vw, 2.625rem);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -0.04em;
}

.view-heading::after,
.home-status-header::after,
.translator-heading::after {
  color: var(--ink);
  font-size: clamp(2rem, 4.5vw, 2.625rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.04em;
}

#studyView > .view-heading::after { content: "1.1"; }
#readerView > .view-heading::after { content: "2.1"; }
#phraseView > .view-heading::after { content: "2.2"; }
#fastReaderView > .view-heading::after { content: "2.3"; }
#pulseView > .view-heading::after { content: "3.1"; }
#storiesView > .view-heading::after { content: "3.2"; }
#calendarView > .view-heading::after { content: "4.1"; }
#feedView > .view-heading::after { content: "4.2"; }
#settingsView > .view-heading::after { content: "5.1"; }

#homeView .home-panel {
  gap: 0;
}

.home-hero {
  min-height: 208px;
  margin: 0;
  padding: 60px 20px 28px;
  gap: 28px;
  overflow: visible;
  border: 0;
  border-bottom: 1px solid var(--line);
  background: transparent;
}

.home-hero::after {
  display: none;
}

.home-status-header {
  padding-bottom: 14px;
  align-items: flex-end;
  border-bottom: 1px solid var(--line);
}

.home-status-header::after {
  content: none;
}

.home-status-header .quiet-pill {
  display: none;
}

.home-hero-stats,
.stat-row {
  gap: 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.home-hero-stats span,
.stat-row span {
  min-height: 74px;
  padding: 12px 10px;
  border: 0;
  border-right: 1px solid var(--line);
  background: transparent;
  color: var(--muted);
  font-size: 10px;
  line-height: 1.4;
  text-align: left;
  text-transform: uppercase;
}

.home-hero-stats span:last-child,
.stat-row span:last-child {
  border-right: 0;
}

.home-hero-stats strong,
.stat-row strong {
  color: var(--ink);
  font-size: 27px;
  line-height: 1;
  letter-spacing: -0.025em;
}

.home-progress,
.xp-track,
.mini-track,
.reader-progress,
.pulse-progress,
.pulse-health {
  height: 2px;
  border: 0;
  background: var(--line);
}

.home-progress span,
.xp-track span,
.mini-track span,
.reader-progress span,
.pulse-progress span,
.pulse-health span {
  background: var(--ink);
}

.translator-panel {
  gap: 26px;
  margin: 0;
  padding: 48px 20px 52px;
  border: 0;
  border-bottom: 1px solid var(--line);
  background: var(--color-sand);
}

.translator-heading {
  padding-bottom: 14px;
  align-items: end;
  border-bottom: 1px solid rgba(43, 43, 43, 0.16);
}

.translator-heading::after {
  content: none;
}

.translator-heading .translator-status {
  display: none;
}

.translator-search {
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 20px;
  align-items: end;
}

.translator-input,
.search-input,
.account-input,
.event-input,
.phrase-search,
.phrase-category,
.story-input,
.reader-text-input,
.import-box,
.feed-input,
.chapter-select-wrap select,
.guild-select,
.piano-song-select,
.piano-song-input {
  min-height: 48px;
  padding: 8px 0 12px;
  border: 0;
  border-bottom: 1px solid var(--line-strong);
  color: var(--ink);
  background: transparent;
  outline: none;
}

.translator-input {
  border-bottom-color: rgba(43, 43, 43, 0.58);
  font-size: 20px;
  letter-spacing: -0.025em;
}

.translator-input:focus,
.search-input:focus,
.account-input:focus,
.event-input:focus,
.phrase-search:focus,
.phrase-category:focus,
.story-input:focus,
.reader-text-input:focus,
.import-box:focus,
.feed-input:focus {
  border-color: var(--ink);
}

.primary-button,
.small-button,
.ghost-button,
.grade-button,
.calendar-toggle-button,
.reader-file-button,
.english-hold {
  min-height: 38px;
  padding: 5px 0;
  border: 0;
  border-bottom: 1px solid currentColor;
  color: var(--ink);
  background: transparent;
  font-size: 16px;
  font-weight: 400;
}

.primary-button:hover,
.small-button:hover,
.ghost-button:hover,
.grade-button:hover,
.calendar-toggle-button:hover,
.reader-file-button:hover,
.english-hold:hover,
.home-card:hover {
  font-weight: 700;
}

.primary-button:active,
.small-button:active,
.ghost-button:active,
.home-card:active,
.tab:active {
  transform: none;
}

.quiet-pill {
  min-height: auto;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--muted);
  font-size: 10px;
  line-height: 2;
  text-transform: uppercase;
}

.translator-result {
  border-top: 1px solid rgba(43, 43, 43, 0.16);
}

.translator-empty,
.translator-match {
  padding: 20px 0 0;
  border: 0;
  background: transparent;
}

.translator-match-heading strong {
  font-size: 27px;
  letter-spacing: -0.025em;
}

.home-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0;
  padding: 0 20px;
  background: transparent;
}

.home-card {
  position: relative;
  min-height: 168px;
  padding: 28px 52px 24px 0;
  align-content: space-between;
  border: 0;
  border-bottom: 1px solid var(--line);
  color: var(--ink);
  background: transparent;
}

.home-card:nth-child(odd) {
  padding-right: 72px;
  border-right: 1px solid var(--line);
}

.home-card:nth-child(even) {
  padding-left: 20px;
}

.home-card::before {
  display: none;
}

.home-card::after {
  display: none;
}

.home-card:nth-child(1)::after { content: "2.1"; right: 20px; }
.home-card:nth-child(2)::after { content: "2.2"; }
.home-card:nth-child(3)::after { content: "2.3"; right: 20px; }
.home-card:nth-child(4)::after { content: "2.4"; }
.home-card:nth-child(5)::after { content: "2.5"; right: 20px; }
.home-card:nth-child(6)::after { content: "2.6"; }
.home-card:nth-child(7)::after { content: "2.7"; right: 20px; }

.section-index,
.home-card .home-card-index {
  color: var(--ink);
  font-family: var(--font-plain);
  font-size: clamp(2rem, 4.5vw, 2.625rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.04em;
}

.home-card .home-card-index {
  position: absolute;
  top: 28px;
  right: 0;
  font-size: 16px;
  line-height: 1;
  letter-spacing: 0;
}

.home-card strong {
  color: var(--ink);
  font-size: 27px;
  line-height: 1.1;
  letter-spacing: -0.025em;
}

.home-card span {
  max-width: 30rem;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.5;
}

.hero-band,
.flashcard,
.metric-tile,
.story-panel,
.reader-panel,
.phrase-panel,
.pulse-panel,
.account-panel,
.guild-panel,
.setting-row,
.activity-panel,
.calendar-panel,
.upcoming-panel,
.feed-panel,
.feed-post,
.login-card,
.event-modal,
.fast-reader-card,
.reader-text-panel,
.reader-speed-panel,
.reader-speed-wheel,
.reader-hint-key,
.reader-reveal,
.phrase-card,
.story-result > div,
.event-row,
.upcoming-row,
.calendar-day,
.pulse-stat,
.pulse-stage,
.pulse-lanes button,
.pronunciation-row {
  border-color: var(--line);
  background: transparent;
}

.hero-band,
.flashcard,
.story-panel,
.reader-panel,
.phrase-panel,
.pulse-panel,
.account-panel,
.guild-panel,
.activity-panel,
.calendar-panel,
.upcoming-panel,
.feed-panel {
  margin: 0 20px;
  border-width: 0 0 1px;
}

.hero-band {
  min-height: 140px;
  padding: 18px 0;
}

.hero-content {
  padding: 0;
}

.level-badge strong {
  color: var(--ink);
  font-size: 27px;
  letter-spacing: -0.025em;
}

.mode-panel,
.action-grid,
.metric-grid,
.settings-list,
.settings-progress,
.feed-composer {
  margin-right: 20px;
  margin-left: 20px;
}

.mode-panel {
  margin-top: 20px;
  margin-bottom: 20px;
}

.mode-tabs,
.segmented,
.piano-mode-tabs,
.pulse-game-mode,
.pulse-difficulty,
.pulse-direction {
  gap: 0;
  padding: 0;
  border: 1px solid var(--line);
  background: transparent;
}

.mode-tabs button,
.segmented button,
.piano-mode-tabs button,
.pulse-game-mode button,
.pulse-difficulty button,
.pulse-direction button {
  border-right: 1px solid var(--line);
  color: var(--muted);
  background: transparent;
}

.mode-tabs button:last-child,
.segmented button:last-child,
.piano-mode-tabs button:last-child,
.pulse-game-mode button:last-child,
.pulse-difficulty button:last-child,
.pulse-direction button:last-child {
  border-right: 0;
}

.mode-tabs button.active,
.segmented button.active,
.piano-mode-tabs button.active,
.pulse-game-mode button.active,
.pulse-difficulty button.active,
.pulse-direction button.active,
.calendar-toggle-button.active {
  color: var(--ink);
  background: var(--color-frost);
}

.flashcard {
  min-height: 420px;
  border-top: 1px solid var(--line);
}

.card-meta {
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
  font-size: 10px;
}

.card-body {
  padding: 36px 0 52px;
  text-align: left;
}

.card-front {
  color: var(--ink);
  font-size: clamp(3.75rem, 12vw, 7.5rem);
  font-weight: 700;
  line-height: 0.95;
  letter-spacing: -0.05em;
}

.card-front.fit-medium { font-size: clamp(3rem, 9vw, 6rem); }
.card-front.fit-small { font-size: clamp(2.25rem, 7vw, 4.5rem); }

.card-back-wrap {
  border-top-color: var(--line);
}

.card-back,
.card-note,
.card-parts,
.pronunciation-row {
  color: var(--ink);
  text-align: left;
}

.grade-button.no,
.grade-button.yes {
  color: var(--ink);
  background: transparent;
}

.grade-button small {
  color: var(--muted);
}

.metric-grid,
.stats-grid {
  gap: 0;
  border-top: 1px solid var(--line);
}

.metric-tile {
  min-height: 100px;
  border-width: 0 1px 1px 0;
  text-align: left;
  padding: 16px;
}

.metric-tile strong {
  font-size: 34px;
  letter-spacing: -0.04em;
}

.story-panel,
.reader-panel,
.phrase-panel,
.pulse-panel,
.account-panel,
.guild-panel,
.calendar-panel,
.upcoming-panel,
.feed-panel {
  padding: 24px 0 40px;
}

.reader-card,
.story-result,
.phrase-list,
.event-list,
.feed-list,
.guild-list {
  gap: 0;
}

.reader-latin,
.story-latin {
  padding: 34px 0;
  border-width: 1px 0;
  color: var(--ink);
  background: transparent;
  font-size: clamp(1.7rem, 4vw, 2.625rem);
  line-height: 1.32;
  letter-spacing: -0.025em;
}

.phrase-card,
.reader-reveal,
.reader-hint-key,
.event-row,
.upcoming-row,
.feed-post,
.setting-row,
.guild-row {
  border-width: 0 0 1px;
  padding: 20px 0;
}

.phrase-latin {
  color: var(--ink);
  font-size: 27px;
  letter-spacing: -0.025em;
}

.reader-word-verb,
.reader-word-noun,
.reader-word-adjective,
.reader-word-case,
.reader-word-connector,
.reader-word-preposition,
.reader-word-pronoun,
.reader-word-adverb,
.reader-word-name {
  color: var(--ink);
  -webkit-text-fill-color: var(--ink);
  border-bottom: 1px solid var(--color-sage-stone);
  background: transparent;
}

.reader-hint-swatch {
  width: 16px;
  height: 1px;
  border: 0;
  background: var(--ink);
}

.calendar-day.today,
.calendar-day.selected,
.activity-cell.active,
.event-chip,
.upcoming-mark {
  color: var(--ink);
  background: var(--color-frost);
}

.tabbar {
  left: 0;
  width: 100%;
  max-width: none;
  gap: 0;
  padding: 0 10px env(safe-area-inset-bottom);
  border-top: 1px solid var(--color-graphite);
  background: var(--color-linen);
  backdrop-filter: none;
  transform: none;
}

.tab {
  min-height: 58px;
  padding: 7px 2px 0;
  border: 0;
  border-right: 1px solid rgba(43, 43, 43, 0.12);
  color: var(--color-graphite);
  background: transparent;
  font-size: 10px;
  font-weight: 400;
  text-transform: uppercase;
}

.tab:last-child {
  border-right: 0;
}

.tab::after {
  right: 4px;
  bottom: auto;
  left: 4px;
  top: 0;
  width: auto;
  height: 1px;
  background: transparent;
  transform: none;
}

.tab.active {
  color: var(--color-inkstone);
  background: transparent;
  font-weight: 700;
}

.tab.active::after {
  background: var(--color-inkstone);
}

.toast {
  bottom: calc(72px + env(safe-area-inset-bottom));
  padding: 14px 20px;
  border-width: 1px 0;
  background: var(--color-linen);
  color: var(--color-inkstone);
  font-size: 12px;
  text-align: left;
}

.login-gate {
  place-items: start stretch;
  padding: 0;
}

body.standalone-login {
  display: block;
  min-height: 100dvh;
  padding: 0;
  background: var(--color-bone);
}

.login-card {
  width: 100%;
  min-height: 100dvh;
  align-content: start;
  gap: 24px;
  padding: max(20px, env(safe-area-inset-top)) 20px 60px;
  border: 0;
  background: transparent;
}

.login-crest {
  display: none;
}

.login-card .brand {
  margin-bottom: clamp(56px, 12vw, 130px);
}

.login-card h1 {
  margin: 0 0 32px -0.055em;
  color: var(--ink);
  font-size: clamp(5rem, 15vw, 11.875rem);
  line-height: 0.84;
  letter-spacing: -0.055em;
  white-space: nowrap;
}

.login-status,
.account-note {
  color: var(--muted);
}

.modal-backdrop {
  background: rgba(43, 43, 43, 0.22);
}

.event-modal {
  border: 1px solid var(--color-graphite);
  background: var(--color-bone);
}

body.night-reading .ghost-button,
body.night-reading .small-button,
body.night-reading .quiet-pill,
body.night-reading .calendar-toggle-button,
body.night-reading .chapter-select-wrap select,
body.night-reading .home-hero,
body.night-reading .home-card,
body.night-reading .translator-panel,
body.night-reading .phrase-panel,
body.night-reading .home-hero-stats span,
body.night-reading .stat-row span,
body.night-reading .translator-input,
body.night-reading .translator-empty,
body.night-reading .translator-match,
body.night-reading .metric-tile,
body.night-reading .calendar-day,
body.night-reading .upcoming-row,
body.night-reading .activity-cell,
body.night-reading .story-input,
body.night-reading .story-result > div,
body.night-reading .reader-latin,
body.night-reading .phrase-search,
body.night-reading .phrase-category,
body.night-reading .phrase-card,
body.night-reading .phrase-empty,
body.night-reading .fast-reader-card,
body.night-reading .reader-speed-panel,
body.night-reading .reader-speed-wheel,
body.night-reading .reader-text-panel,
body.night-reading .reader-text-input,
body.night-reading .pulse-hud div,
body.night-reading .pulse-stage,
body.night-reading .pulse-lanes button,
body.night-reading .pulse-feedback,
body.night-reading .reader-hint-key,
body.night-reading .reader-reveal,
body.night-reading .search-input,
body.night-reading .account-input,
body.night-reading .import-box,
body.night-reading .event-input,
body.night-reading .event-row,
body.night-reading .feed-input {
  color: var(--text);
  border-color: var(--line);
  background: transparent;
}

body.night-reading .translator-panel {
  background: var(--surface-2);
}

body.night-reading .tabbar {
  background: #161616;
}

@media (max-width: 560px) {
  .app-shell,
  body.piano-shell .app-shell {
    padding-right: 0;
    padding-left: 0;
  }

  .topbar {
    min-height: 138px;
  }

  #viewTitle {
    font-size: clamp(5.6rem, 26vw, 7rem);
  }

  .home-hero {
    min-height: 248px;
    padding: 52px 20px 32px;
  }

  .home-hero-stats {
    gap: 0;
  }

  .home-hero-stats span {
    min-height: 72px;
    padding: 12px 8px;
    font-size: 9px;
  }

  .home-hero-stats strong {
    font-size: 24px;
  }

  .translator-search {
    grid-template-columns: minmax(0, 1fr) 82px;
  }

  .home-grid {
    grid-template-columns: 1fr;
  }

  .home-card,
  .home-card:nth-child(odd),
  .home-card:nth-child(even) {
    min-height: 146px;
    padding: 28px 64px 22px 0;
    border-right: 0;
  }

  .home-card:nth-child(1)::after,
  .home-card:nth-child(3)::after,
  .home-card:nth-child(5)::after,
  .home-card:nth-child(7)::after {
    right: 0;
  }

  .home-card strong {
    font-size: 27px;
  }

  .view-heading {
    min-height: 108px;
    padding-top: 34px;
  }

  .view-heading h2,
  .view-heading::after,
  .home-status-header h2,
  .home-status-header::after,
  .translator-heading h2,
  .translator-heading::after {
    font-size: 34px;
  }

  .hero-band,
  .flashcard,
  .story-panel,
  .reader-panel,
  .phrase-panel,
  .pulse-panel,
  .account-panel,
  .guild-panel,
  .activity-panel,
  .calendar-panel,
  .upcoming-panel,
  .feed-panel,
  .mode-panel,
  .action-grid,
  .metric-grid,
  .settings-list,
  .settings-progress,
  .feed-composer {
    margin-right: 20px;
    margin-left: 20px;
  }

  .mode-panel,
  .reader-controls,
  .phrase-controls,
  .fast-reader-controls,
  .reader-text-panel,
  .reader-speed-panel,
  .pulse-controls {
    grid-template-columns: 1fr;
  }

  .chapter-select-wrap {
    justify-content: space-between;
  }

  .tabbar {
    overflow-x: auto;
    grid-template-columns: repeat(10, minmax(54px, 1fr));
    scrollbar-width: none;
  }

  .tabbar::-webkit-scrollbar {
    display: none;
  }

  .tab {
    font-size: 9px;
  }

  .piano-game-board {
    margin: 0 8px;
  }
}