:root {
  color-scheme: light;
  --bg: #f7f9fe;
  --surface: #fff;
  --surface-soft: #f7f9fd;
  --ink: #08154f;
  --muted: #64709a;
  --line: #e5eaf4;
  --accent: #0869f7;
  --accent-dark: #0753d3;
  --accent-soft: #eaf2ff;
  --success: #168a55;
  --error: #c93636;
  --shadow: 0 10px 30px rgba(24, 56, 116, 0.08);
  --card-shadow: 0 5px 18px rgba(23, 55, 112, 0.055);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; min-width: 320px; background: var(--bg); color: var(--ink); }
body.dark { --bg: #091126; --surface: #101a34; --surface-soft: #15203d; --ink: #f4f7ff; --muted: #aab5d1; --line: #263454; --accent-soft: #162e5c; --shadow: 0 14px 36px rgba(0,0,0,.22); --card-shadow: 0 8px 24px rgba(0,0,0,.18); color-scheme: dark; }
button, input, select { font: inherit; }
button, select { cursor: pointer; }
button:focus-visible, input:focus-visible, select:focus-visible, [tabindex]:focus-visible { outline: 3px solid rgba(8,105,247,.24); outline-offset: 3px; }
[hidden] { display: none !important; }

.dashboard { min-height: 100vh; display: grid; grid-template-columns: 188px minmax(0, 1fr); background: var(--surface); }
.sidebar { position: sticky; top: 0; z-index: 5; display: flex; height: 100vh; flex-direction: column; overflow-y: auto; border-right: 1px solid var(--line); background: var(--surface); padding: 36px 12px 18px; scrollbar-width: thin; }
.brand { display: grid; justify-items: center; gap: 4px; color: var(--ink); font-size: 1.12rem; font-weight: 900; letter-spacing: .03em; text-decoration: none; }
.brand-mark { display: grid; width: 68px; height: 68px; place-items: center; border-radius: 17px; background: linear-gradient(155deg, #071359 5%, #141462 70%, #0987ed 150%); color: #fff; font-size: 2.15rem; box-shadow: 0 12px 22px rgba(8, 33, 111, .2); }
.main-nav { display: grid; gap: 14px; margin-top: 34px; }
.nav-item { display: flex; min-height: 52px; align-items: center; gap: 14px; border: 0; border-radius: 12px; background: transparent; color: var(--ink); padding: 0 15px; text-align: left; font-size: .93rem; font-weight: 650; transition: .18s ease; }
.nav-item span { width: 20px; font-size: 1.45rem; font-weight: 800; text-align: center; }
.nav-item:hover { background: var(--surface-soft); transform: translateX(2px); }
.nav-item.is-active { background: linear-gradient(135deg, #0b6bf7, #075af0); color: #fff; box-shadow: 0 10px 20px rgba(8,105,247,.25); }
.sidebar-widgets { display: grid; gap: 12px; margin-top: auto; }
.side-widget, .theme-widget { border: 1px solid var(--line); border-radius: 14px; background: var(--surface); box-shadow: var(--card-shadow); padding: 14px; color: var(--ink); font-size: .77rem; }
.side-widget strong { display: block; }
.progress-widget { text-align: center; }
.progress-ring { display: grid; width: 82px; height: 82px; place-items: center; margin: 14px auto 10px; border-radius: 50%; background: conic-gradient(var(--accent) 0 0%, #e7ebf4 0% 100%); position: relative; }
.progress-ring::before { content: ""; position: absolute; width: 66px; height: 66px; border-radius: inherit; background: var(--surface); }
.progress-ring span { position: relative; font-size: 1.55rem; font-weight: 800; }
.progress-widget b { font-weight: 550; }.progress-widget em { color: var(--accent); font-style: normal; font-weight: 800; }
.streak-widget p { display: flex; align-items: center; justify-content: center; gap: 6px; margin: 12px 0 0; }.streak-widget p span { font-size: 1.9rem; }.streak-widget p b { font-size: 1.8rem; }
.motivation-widget { line-height: 1.9; }.motivation-widget .rocket { display: block; margin: 4px 0 15px; font-size: 2.4rem; text-align: center; }.motivation-widget p { margin: 6px 0 0; color: var(--muted); }
.theme-widget { display: flex; align-items: center; justify-content: space-between; color: var(--muted); }.theme-widget button { display: flex; align-items: center; gap: 7px; border: 0; background: none; color: var(--ink); }.theme-widget i { width: 32px; height: 18px; border-radius: 999px; background: #ccd4e6; position: relative; }.theme-widget i::after { content: ""; position: absolute; width: 14px; height: 14px; left: 2px; top: 2px; border-radius: 50%; background: #fff; transition: .2s ease; }.dark .theme-widget i { background: var(--accent); }.dark .theme-widget i::after { transform: translateX(14px); }

.home-main { min-width: 0; padding: 38px 34px 40px; background: var(--surface); }
.home-header { display: flex; align-items: flex-start; justify-content: space-between; gap: 24px; margin: 0 2px 28px; }
.home-header h1 { margin: 0 0 5px; font-size: clamp(1.8rem, 3.2vw, 2.55rem); line-height: 1.1; letter-spacing: -.025em; }
.home-header p { margin: 0; color: var(--muted); font-size: .98rem; }
.header-actions { display: flex; align-items: center; gap: 12px; }
.streak-pill, .icon-button, .avatar-button { min-height: 42px; border: 1px solid var(--line); background: var(--surface); color: var(--ink); box-shadow: var(--card-shadow); }
.streak-pill { display: flex; align-items: center; gap: 5px; border-radius: 999px; padding: 0 15px; font-size: .8rem; }
.icon-button, .avatar-button { width: 42px; border-radius: 50%; position: relative; }.icon-button i { position: absolute; width: 5px; height: 5px; border-radius: 50%; background: #fb445d; right: 10px; top: 9px; }.avatar-button { border-color: transparent; background: var(--accent); color: #fff; }
.home-favorites-menu { position: relative; display: inline-flex; }
.favorite-star-button { border: none; background: transparent; cursor: pointer; font-size: clamp(1.8rem, 3vw, 2.8rem); line-height: 1; padding: .25rem; color: rgba(190, 220, 255, .75); text-shadow: 0 0 10px rgba(90, 190, 255, .25); transition: transform .18s ease, color .18s ease, text-shadow .18s ease, filter .18s ease; }
.favorite-star-button:hover { transform: scale(1.12) rotate(-4deg); color: #ffe066; text-shadow: 0 0 10px rgba(255, 220, 90, .7), 0 0 22px rgba(255, 180, 40, .35); }
.favorite-star-button.is-favorite { color: #ffd43b; text-shadow: 0 0 10px rgba(255, 220, 90, .85), 0 0 26px rgba(255, 180, 40, .45); }
.favorite-star-button:active { transform: scale(.96); }
.favorite-star-button:focus-visible { outline: 3px solid rgba(255, 224, 102, .45); outline-offset: 4px; border-radius: 16px; }
.home-favorite-button { display: grid; width: 42px; min-height: 42px; place-items: center; border: 1px solid var(--line); border-radius: 50%; background: var(--surface); box-shadow: var(--card-shadow); font-size: 1.55rem; }
.favorite-dropdown { position: absolute; z-index: 50; top: calc(100% + 12px); right: 0; width: min(420px, 92vw); max-height: 70vh; overflow-y: auto; padding: .75rem; border: 1px solid rgba(125, 220, 255, .35); border-radius: 22px; background: linear-gradient(135deg, rgba(8, 18, 42, .96), rgba(18, 42, 88, .92)); box-shadow: 0 18px 45px rgba(0, 0, 0, .35), 0 0 22px rgba(80, 200, 255, .18); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); }
.favorite-dropdown-title { margin: 0 0 .6rem; color: #7df4ff; font-size: .85rem; font-weight: 900; letter-spacing: .08em; text-transform: uppercase; }
.favorite-list { display: grid; gap: .45rem; }
.favorite-item { display: flex; width: 100%; align-items: center; gap: .7rem; border: none; border-radius: 16px; background: rgba(255, 255, 255, .08); color: #fff; padding: .65rem; cursor: pointer; text-align: left; transition: background .15s ease, transform .15s ease; }
.favorite-item:hover { background: rgba(125, 220, 255, .16); transform: translateY(-1px); }
.favorite-item-thumb { display: grid; width: 58px; height: 46px; flex: 0 0 58px; place-items: center; overflow: hidden; border-radius: 12px; background: rgba(255, 255, 255, .12); color: #ffd43b; font-size: 1.45rem; font-weight: 900; }
.favorite-item-thumb img { display: block; width: 100%; height: 100%; object-fit: cover; }
.favorite-item-copy { display: grid; min-width: 0; gap: .12rem; }
.favorite-item-number { color: #ffd43b; font-size: .78rem; font-weight: 900; }
.favorite-item-title { color: #fff; font-weight: 850; line-height: 1.15; overflow-wrap: anywhere; }
.favorite-item-subtitle { color: rgba(255, 255, 255, .78); font-size: .85rem; line-height: 1.15; overflow-wrap: anywhere; }
.favorite-empty { margin: 0; color: rgba(255, 255, 255, .78); font-size: .9rem; line-height: 1.45; }
.filters { display: grid; grid-template-columns: minmax(280px, 1fr) auto; gap: 22px; align-items: center; margin: 0 0 25px; }
.global-search-box { display: grid; gap: 8px; }
.global-search-box > strong { color: var(--ink); font-size: .9rem; }
.global-search-row { display: grid; grid-template-columns: minmax(220px, 1fr) auto auto; gap: 8px; align-items: center; }
.sheet-search { display: flex; min-height: 44px; align-items: center; gap: 10px; border: 1px solid var(--line); border-radius: 999px; background: var(--surface); padding: 0 18px; box-shadow: 0 2px 10px rgba(30, 55, 100, .025); color: #7885ab; }
.sheet-search input { width: 100%; min-width: 0; border: 0; outline: 0; background: transparent; color: var(--ink); font-size: .82rem; }
.sheet-search input::placeholder { color: #9aa5c3; }
.filter-buttons { display: flex; gap: 12px; }
.filter-button { display: flex; min-height: 44px; align-items: center; gap: 8px; border: 1px solid var(--line); border-radius: 999px; background: var(--surface); color: var(--ink); padding: 0 19px; font-size: .82rem; font-weight: 650; box-shadow: 0 3px 10px rgba(30,55,100,.03); transition: .18s ease; }
.filter-button span { font-size: 1.15rem; }.filter-button:hover { border-color: #b9cef8; transform: translateY(-1px); }.filter-button.is-active { border-color: var(--accent); background: var(--accent); color: #fff; box-shadow: 0 9px 18px rgba(8,105,247,.22); }
.sheet-grid { display: grid; grid-template-columns: repeat(8, minmax(92px, 1fr)); gap: 13px; }
.sheet-card { position: relative; display: flex; min-width: 0; min-height: 139px; flex-direction: column; align-items: center; justify-content: flex-start; border: 1px solid var(--line); border-radius: 14px; background: var(--surface); color: var(--ink); padding: 10px 6px 8px; box-shadow: var(--card-shadow); text-align: center; transition: transform .18s ease, border-color .18s ease, box-shadow .18s ease; }
.sheet-card:hover { z-index: 1; border-color: #b8cdf5; box-shadow: 0 14px 30px rgba(24,70,150,.13); transform: translateY(-4px); }
.sheet-card.is-available::after { content: ""; position: absolute; right: 8px; top: 8px; width: 6px; height: 6px; border-radius: 50%; background: #20b678; box-shadow: 0 0 0 3px rgba(32,182,120,.12); }
.sheet-number { font-size: .86rem; font-weight: 850; }
.sheet-icon { display: grid; width: min(100%, 92px); height: 76px; min-height: 76px; place-items: center; overflow: hidden; margin: 7px 0 5px; border-radius: 12px; background: var(--surface-soft); font-size: 2.05rem; line-height: 1; color: #7655ea; font-weight: 900; }
.sheet-icon img { display: block; width: 100%; height: 100%; object-fit: cover; }
.sheet-name { font-size: .72rem; font-weight: 800; }.sheet-title { display: block; overflow: visible; margin-top: 6px; color: #40517e; font-size: clamp(.55rem, .85vw, .68rem); line-height: 1.12; white-space: normal; word-break: normal; overflow-wrap: anywhere; hyphens: auto; text-align: center; }
.dark .sheet-title { color: var(--muted); }
.home-message, .empty-state { border-radius: 12px; padding: 12px 16px; background: var(--accent-soft); color: var(--accent-dark); font-size: .86rem; font-weight: 700; }.empty-state { grid-column: 1/-1; text-align: center; }
.home-search-results { display: grid; gap: 12px; margin: 0 0 22px; }
.search-results-header, .search-empty { border: 1px solid var(--line); border-radius: 14px; background: var(--surface); padding: 13px 15px; box-shadow: var(--card-shadow); }
.search-results-header { display: flex; align-items: center; justify-content: space-between; gap: 10px; color: var(--ink); }
.search-results-header span, .search-empty p { color: var(--muted); font-size: .82rem; }
.search-result-card { display: grid; grid-template-columns: 92px minmax(0, 1fr) auto; align-items: center; gap: 14px; border: 1px solid var(--line); border-radius: 16px; background: var(--surface); padding: 11px; box-shadow: var(--card-shadow); }
.search-result-card img { width: 92px; height: 82px; border-radius: 12px; object-fit: contain; background: var(--surface-soft); }
.search-result-copy { min-width: 0; }
.search-result-copy strong, .search-result-copy p, .search-result-copy small { display: block; overflow: visible; text-overflow: unset; white-space: normal; word-break: normal; overflow-wrap: anywhere; hyphens: auto; line-height: 1.12; }
.search-result-copy strong { color: var(--ink); font-size: clamp(.82rem, 1.1vw, 1rem); }
.search-result-copy p { margin: 3px 0; color: var(--accent-dark); font-size: clamp(.76rem, 1vw, .92rem); font-weight: 800; }
.search-result-copy small { color: var(--muted); font-size: clamp(.68rem, .9vw, .82rem); font-weight: 750; }
.search-result-extra { display: flex; flex-wrap: wrap; gap: 6px; margin: 6px 0; }
.search-result-extra span { border-radius: 999px; background: var(--surface-soft); padding: 5px 8px; color: var(--muted); font-size: .74rem; font-weight: 750; }
.open-search-result { border: 1px solid var(--line); background: var(--accent); color: #fff; }
.word-card.is-search-hit { border-color: #ffba34 !important; box-shadow: 0 0 0 4px rgba(255, 186, 52, .28), 0 22px 42px rgba(35, 60, 110, .18) !important; transform: translateY(-4px); }

.reader-view { width: min(1280px, calc(100% - 32px)); margin: 0 auto; padding: 22px 0 48px; }
.back-home { min-height: 44px; border: 1px solid var(--line); border-radius: 999px; background: var(--surface); color: var(--ink); padding: 0 18px; font-weight: 800; box-shadow: var(--card-shadow); }
.reader-hero { display: grid; grid-template-columns: minmax(0, 1fr) minmax(280px, .34fr); gap: 24px; margin-top: 18px; align-items:start; }
.reader-copy, .sheet-preview, .quiz-panel, .word-card, .zoom-dialog { border: 1px solid var(--line); background: var(--surface); box-shadow: var(--shadow); }
.reader-copy { display: flex; min-width: 0; min-height: 420px; flex-direction: column; justify-content: center; border-radius: 26px; padding: clamp(22px, 3vw, 36px); }
.section-label { margin: 0 0 12px; color: var(--accent-dark); font-size: .78rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.sheet-title-row { display:grid;grid-template-columns:minmax(0,1fr) clamp(120px,16vw,190px);gap:18px;align-items:start;margin-bottom:16px }
.sheet-title-copy { min-width:0 }
.reader-copy h1 { margin: 0; font-size: clamp(1.45rem, 2.9vw, 2.85rem); line-height: 1.05; overflow-wrap: anywhere; }
.sheet-title-block {
  position: relative;
  z-index: 2;
  display: inline-flex;
  flex-direction: column;
  gap: .25rem;
  max-width: min(100%, 760px);
  padding: clamp(1.05rem, 2vw, 1.7rem) clamp(4rem, 6vw, 5.4rem) clamp(1.05rem, 2vw, 1.7rem) clamp(1.15rem, 2.4vw, 2rem);
  border: 1px solid rgba(125, 230, 255, .46);
  border-radius: clamp(24px, 3vw, 38px);
  background:
    linear-gradient(135deg, rgba(4, 15, 35, .94), rgba(9, 40, 72, .88) 58%, rgba(18, 30, 72, .9)),
    linear-gradient(120deg, rgba(125, 244, 255, .22), transparent 28%, rgba(120, 95, 255, .16) 100%);
  box-shadow:
    0 22px 55px rgba(0, 0, 0, .38),
    0 0 28px rgba(60, 210, 255, .2),
    inset 0 1px 0 rgba(255, 255, 255, .24),
    inset 0 -8px 18px rgba(0, 0, 0, .28);
  overflow: hidden;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}
.sheet-title-block::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, transparent 0%, rgba(255, 255, 255, .16) 18%, transparent 36%);
  opacity: .58;
  pointer-events: none;
}
.sheet-title-block::after {
  content: "";
  position: absolute;
  inset: 1px;
  border-radius: inherit;
  border: 1px solid rgba(255, 255, 255, .12);
  pointer-events: none;
}
.sheet-favorite-button {
  position: absolute;
  top: clamp(.8rem, 1.4vw, 1.2rem);
  right: clamp(.9rem, 1.6vw, 1.4rem);
  z-index: 5;
  display: inline-flex;
  width: clamp(2.7rem, 4vw, 3.8rem);
  height: clamp(2.7rem, 4vw, 3.8rem);
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(155, 225, 255, .24);
  border-radius: 999px;
  background: rgba(255, 255, 255, .08);
  box-shadow:
    0 10px 24px rgba(0, 0, 0, .25),
    inset 0 1px 0 rgba(255, 255, 255, .18);
  font-size: clamp(1.8rem, 3vw, 2.7rem);
}
.sheet-favorite-button:hover {
  background: rgba(255, 225, 100, .12);
  border-color: rgba(255, 220, 80, .46);
}
.sheet-favorite-button.is-favorite,
.sheet-favorite-button[aria-pressed="true"] {
  background: rgba(255, 220, 80, .16);
  border-color: rgba(255, 220, 80, .55);
  box-shadow:
    0 12px 28px rgba(0, 0, 0, .25),
    0 0 22px rgba(255, 190, 45, .34),
    inset 0 1px 0 rgba(255, 255, 255, .24);
}
.sheet-favorite-button:focus-visible {
  outline: 3px solid rgba(125, 244, 255, .9);
  outline-offset: 4px;
  border-radius: 999px;
}
.sheet-title-kicker {
  position: relative;
  z-index: 2;
  margin: 0;
  color: #8ff7ff;
  font-size: clamp(.75rem, 1.2vw, 1.05rem);
  font-weight: 900;
  letter-spacing: .18em;
  text-transform: uppercase;
  text-shadow:
    0 0 8px rgba(125, 244, 255, .9),
    0 0 18px rgba(45, 210, 255, .38),
    0 2px 0 rgba(0, 0, 0, .48);
}
.sheet-title-number {
  position: relative;
  z-index: 2;
  color: #f4fbff;
  font-size: clamp(1.05rem, 1.9vw, 1.7rem);
  font-weight: 900;
  text-shadow:
    0 2px 0 rgba(0, 0, 0, .42),
    0 0 14px rgba(85, 210, 255, .42);
}
.reader-copy .sheet-title-main {
  position: relative;
  z-index: 2;
  max-width: 100%;
  margin: 0;
  color: transparent;
  background: linear-gradient(180deg, #fff 0%, #a8f6ff 22%, #5fc8ff 45%, #326cff 72%, #8d73ff 100%);
  -webkit-background-clip: text;
  background-clip: text;
  filter: drop-shadow(0 14px 20px rgba(0, 0, 0, .42));
  font-size: clamp(2.7rem, 6vw, 6.4rem);
  font-weight: 950;
  letter-spacing: 0;
  line-height: .96;
  overflow-wrap: anywhere;
  text-shadow:
    0 1px 0 rgba(255, 255, 255, .45),
    0 4px 0 rgba(0, 45, 130, .4),
    0 0 24px rgba(80, 210, 255, .58);
}
.sheet-title-sub {
  position: relative;
  z-index: 2;
  color: rgba(235, 247, 255, .96);
  font-size: clamp(1.3rem, 2.7vw, 2.4rem);
  font-weight: 900;
  line-height: 1.15;
  overflow-wrap: anywhere;
  text-shadow:
    0 2px 0 rgba(0, 0, 0, .42),
    0 0 16px rgba(85, 210, 255, .42);
}
.reader-text { margin: 0 0 24px; color: var(--muted); line-height: 1.6; }
.toolbar { display: grid; grid-template-columns: minmax(150px,.8fr) minmax(210px,1.2fr) minmax(165px,.85fr); gap: 12px; margin-bottom: 16px; }.field { display: grid; gap: 7px; color: var(--muted); font-size: .82rem; font-weight: 800; }.field input,.field select { width: 100%; min-width: 0; min-height: 46px; border: 1px solid var(--line); border-radius: 14px; background: var(--surface); color: var(--ink); padding: 0 14px; }
.actions { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 18px; }.primary-button,.secondary-button,.ghost-button,.audio-button { display: inline-flex; min-height: 44px; align-items: center; justify-content: center; border: 0; border-radius: 999px; padding: 0 18px; font-weight: 800; transition: .16s ease; }.primary-button { background: var(--accent); color: #fff; }.secondary-button { background: #142033; color: #fff; }.warm-button { background: #a85a00; }.ghost-button,.audio-button { background: var(--accent-soft); color: var(--accent-dark); }.actions button:hover:not(:disabled),.audio-button:hover { transform: translateY(-2px); }.actions button:disabled { cursor: not-allowed; opacity: .42; }
.actions-grid { display: flex; flex-wrap: wrap; gap: 14px; align-items: center; }
.sheet-language-field.language-selector-card { display: inline-flex; flex-direction: column; gap: .45rem; align-content: center; justify-content: center; width: auto; min-width: clamp(190px, 22vw, 280px); min-height: 82px; padding: clamp(.62rem, 1vw, .82rem); border: 2px solid rgba(220, 235, 245, .86); border-radius: 28px; color: #d9fbff; background: radial-gradient(circle at top left, rgba(125, 244, 255, .35), transparent 45%), linear-gradient(135deg, rgba(8, 26, 54, .96), rgba(12, 86, 120, .9)); box-shadow: 0 12px 26px rgba(0, 0, 0, .24), 0 0 18px rgba(48, 220, 255, .24), inset 0 2px 0 rgba(255, 255, 255, .45), inset 0 -4px 10px rgba(0, 45, 70, .45); }
.language-selector-label { padding-left: .5rem; color: #d9fbff; font-size: clamp(.7rem, .9vw, .84rem); font-weight: 900; letter-spacing: .16em; text-transform: uppercase; text-shadow: 0 1px 0 rgba(0, 0, 0, .45), 0 0 10px rgba(125, 244, 255, .75); }
.language-selector-wrapper { position: relative; display: block; width: 100%; }
.language-selector-wrapper::after { content: "⌄"; position: absolute; right: 1rem; top: 50%; transform: translateY(-56%); color: #fff; font-size: 1.45rem; font-weight: 900; line-height: 1; pointer-events: none; text-shadow: 0 2px 0 rgba(0, 0, 0, .35); }
.language-selector-select { width: 100%; min-height: 44px; border: none; border-radius: 20px; outline: none; appearance: none; -webkit-appearance: none; cursor: pointer; padding: .72rem 2.75rem .72rem 1rem; color: #fff; background: linear-gradient(180deg, #16d8f2 0%, #008cc2 48%, #00699a 100%); box-shadow: inset 0 2px 0 rgba(255, 255, 255, .42), inset 0 -4px 10px rgba(0, 0, 0, .28), 0 4px 10px rgba(0, 0, 0, .22); font: inherit; font-size: clamp(.96rem, 1.2vw, 1.12rem); font-weight: 850; text-shadow: 0 2px 0 rgba(0, 0, 0, .35); }
.language-selector-select option { color: #08204a; background: #fff; font-weight: 700; }
.language-selector-select:focus-visible { box-shadow: 0 0 0 4px rgba(125, 244, 255, .42), inset 0 2px 0 rgba(255, 255, 255, .42), inset 0 -4px 10px rgba(0, 0, 0, .28); }
.sheet-language-field.language-selector-card:has(.language-selector-select:focus-visible) { outline: 3px solid rgba(125, 244, 255, .34); outline-offset: 3px; }
.actions .image-action-button { display: inline-flex; width: auto; height: auto; min-height: 0; align-items: center; justify-content: center; border: none; border-radius: 18px; background: transparent; appearance: none; -webkit-appearance: none; margin: .25rem; padding: 0; cursor: pointer; line-height: 0; box-shadow: none; overflow: visible; transition: transform .18s ease, filter .18s ease; }
.actions .image-action-button img { display: block; width: clamp(115px, 13vw, 210px); max-width: 100%; height: auto; object-fit: contain; border: none; background: transparent; box-shadow: none; pointer-events: none; user-select: none; }
.actions .image-action-button:hover:not(:disabled) { transform: translateY(-2px) scale(1.03); filter: brightness(1.08); }
.actions .image-action-button:active:not(:disabled) { transform: translateY(1px) scale(.97); }
.actions .image-action-button:focus-visible { outline: 3px solid rgba(37, 99, 235, .45); outline-offset: 4px; border-radius: 18px; }
.actions .image-action-button:disabled { cursor: not-allowed; opacity: .48; filter: grayscale(.35); }
.game-button { color: inherit; }
@media (max-width: 768px) { .actions .image-action-button { margin: .18rem; }.actions .image-action-button img { width: clamp(105px, 32vw, 165px); } }
@media (max-width: 640px) { .sheet-language-field.language-selector-card { width: 100%; min-width: 0; border-radius: 22px; }.language-selector-select { font-size: 1rem; padding: .72rem 2.6rem .72rem 1rem; } }
@media (max-width: 420px) { .actions .image-action-button img { width: clamp(92px, 40vw, 135px); }.language-selector-label { font-size: .68rem; }.language-selector-wrapper::after { right: .9rem; font-size: 1.32rem; } }
.audio-accessibility-panel { display: grid; gap: 14px; width: min(100%, 920px); margin: 0 0 18px; padding: clamp(14px, 2vw, 18px); border: 1px solid rgba(125, 244, 255, .38); border-radius: 22px; background: linear-gradient(135deg, rgba(236, 252, 255, .96), rgba(226, 241, 255, .9)); box-shadow: 0 12px 26px rgba(30, 75, 130, .12), inset 0 1px 0 rgba(255, 255, 255, .82); }
.audio-accessibility-header { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.audio-accessibility-header h2 { margin: 0 0 4px; color: #073264; font-size: clamp(1.05rem, 1.9vw, 1.35rem); line-height: 1.1; }
.audio-accessibility-header p { margin: 0; color: #385878; font-size: .88rem; font-weight: 700; }
.audio-accessibility-toggle { display: inline-flex; min-height: 42px; align-items: center; gap: 9px; border-radius: 999px; padding: 0 14px; background: #fff; color: #073264; font-weight: 900; cursor: pointer; box-shadow: inset 0 0 0 1px rgba(10, 80, 130, .12); white-space: nowrap; }
.audio-accessibility-toggle input { width: 18px; height: 18px; accent-color: var(--accent); }
.audio-accessibility-controls { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; align-items: end; }
.audio-accessibility-field { display: grid; gap: 7px; color: #385878; font-size: .78rem; font-weight: 900; }
.audio-accessibility-field span { display: flex; justify-content: space-between; gap: 10px; }
.audio-accessibility-field select, .audio-accessibility-field input[type="range"] { width: 100%; min-width: 0; }
.audio-accessibility-field select { min-height: 42px; border: 1px solid rgba(10, 80, 130, .18); border-radius: 13px; background: #fff; color: #073264; padding: 0 12px; font-weight: 850; }
.audio-accessibility-volume input { accent-color: var(--accent); }
.audio-accessibility-test { min-height: 42px; padding-inline: 14px; white-space: nowrap; }
@media (max-width: 860px) { .audio-accessibility-controls { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 560px) { .audio-accessibility-header { align-items: stretch; flex-direction: column; }.audio-accessibility-toggle { justify-content: center; }.audio-accessibility-controls { grid-template-columns: 1fr; }.audio-accessibility-test { width: 100%; } }
.inline-next-quiz { display: inline-flex; justify-self: start; min-height: 34px; align-items: center; justify-content: center; border: 0; border-radius: 999px; background: var(--accent); color: #fff; padding: 7px 13px; cursor: pointer; font-size: .82rem; font-weight: 850; white-space: nowrap; transition: transform .15s ease, filter .15s ease; }
.inline-next-quiz[hidden] { display: none; }
.inline-next-quiz:hover:not(:disabled) { transform: scale(1.03); filter: brightness(1.06); }
.inline-next-quiz:active:not(:disabled) { transform: scale(.97); }
.inline-next-quiz:focus-visible { outline: 3px solid rgba(37, 99, 235, .45); outline-offset: 3px; }
.inline-next-quiz:disabled { cursor: not-allowed; opacity: .48; }
.quiz-panel { display: grid; gap: 6px; width: min(100%,620px); border-radius: 18px; padding: 16px 18px; color: var(--muted); font-size: .95rem; }.quiz-panel strong { color: var(--ink); }.progress-backup-tools{display:grid;gap:8px;margin-top:10px}.progress-backup-tools .secondary-button,.import-progress-button{display:grid;min-height:36px;place-items:center;text-align:center;text-decoration:none;cursor:pointer}.progress-backup-status{margin:0;color:var(--muted);font-size:.78rem;line-height:1.35}.status-message { border-radius: 14px; padding: 12px 14px; background: var(--accent-soft); color: var(--accent-dark); font-weight: 750; }.status-message[data-type="success"] { background:#eaf8f1;color:var(--success); }.status-message[data-type="error"] { background:#fff0f0;color:var(--error); }
.sheet-preview { display: flex; min-width: 0; min-height: 0; aspect-ratio: 3 / 4; align-items: center; justify-content: center; overflow: hidden; border-radius: 18px; padding: 8px; cursor: zoom-in; }.sheet-preview img { display: block; width: 100%; height:100%; object-fit: contain; border-radius: 13px; background:#fff; transition: transform .18s ease; }.sheet-preview:hover img,.sheet-preview:focus-visible img { transform: scale(1.025); }.sheet-preview:focus-visible { outline: 3px solid rgba(8,105,247,.24); outline-offset: 3px; }
.word-section { padding-top: 36px; }.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 20px; margin-bottom: 18px; }.section-heading h2 { margin: 0; font-size: clamp(1.8rem,4vw,3.2rem); }.section-heading-actions{display:flex;align-items:center;gap:12px;flex-wrap:wrap;justify-content:flex-end}.pdf-button{display:inline-flex;min-height:42px;align-items:center;justify-content:center;border:1px solid var(--line);border-radius:12px;background:var(--accent);color:#fff;padding:0 18px;font-size:.82rem;font-weight:950;box-shadow:var(--card-shadow);transition:.16s ease}.pdf-button:hover:not(:disabled){transform:translateY(-2px);filter:brightness(1.04)}.pdf-button:disabled{cursor:not-allowed;opacity:.45;filter:grayscale(.2)}.word-count { margin:0;color:var(--muted);font-weight:750; }.word-grid { display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px; }
.word-card { display:flex;min-height:350px;flex-direction:column;border-radius:20px;padding:18px;transition:.16s ease; }.word-card:hover,.word-card:focus,.word-card.is-random { border-color:rgba(20,99,255,.38);transform:translateY(-3px);outline:none; }.word-card.is-correct{border-color:rgba(22,138,85,.7);background:#eefbf5}.word-card.is-wrong{border-color:rgba(201,54,54,.7);background:#fff0f0}.word-card.is-quiz-target .quiz-badge{display:inline-flex}.word-picture{display:flex;aspect-ratio:1.7/1;min-height:150px;align-items:center;justify-content:center;margin:0 0 14px;border-radius:16px;background:var(--surface-soft)}.word-picture img{width:100%;height:100%;object-fit:contain}.word-grid.uses-square-vignettes .word-picture{aspect-ratio:1/1}.card-topline{display:flex;justify-content:flex-end}.word-card.is-quiz-target .card-topline{margin-bottom:14px}.quiz-badge{display:none;border-radius:999px;padding:6px 10px;background:#eaf8f1;color:var(--success);font-size:.72rem;font-weight:900}.word-translations{display:grid;gap:6px;margin-bottom:14px}.word-language-row{display:grid;grid-template-columns:42px minmax(0,1fr);align-items:start;gap:8px;margin:0;color:var(--muted);font-size:.9rem;font-weight:720}.word-language-row span{display:inline-grid;min-height:24px;place-items:center;border-radius:8px;background:var(--surface-soft);color:var(--accent-dark);font-size:.68rem;font-weight:900}.word-language-row strong{overflow:visible;text-overflow:unset;white-space:normal;word-break:normal;overflow-wrap:anywhere;hyphens:auto;color:var(--ink);font-size:clamp(.64rem,1.4vw,.95rem);font-weight:820;line-height:1.12;text-align:center}.word-fr{font-size:1.08rem}.word-fr strong{font-size:clamp(.72rem,1.5vw,1.08rem)}.card-actions{display:grid;grid-template-columns:repeat(auto-fit,minmax(58px,1fr));gap:8px;margin-top:auto}.audio-button{padding-inline:10px}.zoom-dialog{width:min(96vw,1180px);height:min(94vh,1180px);border-radius:18px;padding:12px;color:var(--ink)}.zoom-dialog::backdrop{background:rgba(10,18,42,.72)}.zoom-bar{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}.zoom-dialog img{width:100%;height:calc(100% - 56px);object-fit:contain;background:#fff}

.eval-launch-button { background: linear-gradient(135deg,#7357dc,#4d3ac0); }
.written-eval-dialog { width:min(96vw,1540px);max-width:none;height:min(94vh,1100px);max-height:none;border:0;border-radius:26px;background:var(--bg);color:var(--ink);padding:0;box-shadow:0 28px 80px rgba(10,25,70,.3) }
.written-eval-dialog::backdrop { background:rgba(8,15,38,.72);backdrop-filter:blur(5px) }
.eval-dialog-shell { min-height:100%;padding:clamp(18px,3vw,36px) }
.eval-header { display:flex;align-items:flex-start;justify-content:space-between;gap:20px;margin-bottom:24px }
.eval-header h2 { margin:0 0 8px;font-size:clamp(2rem,4vw,3.5rem);line-height:1 }
.eval-header p:not(.section-label) { margin:0;color:var(--muted) }
.eval-setup { display:grid;gap:20px }
.eval-option-group,.eval-history-panel { margin:0;border:1px solid var(--line);border-radius:20px;background:var(--surface);padding:18px;box-shadow:var(--card-shadow) }
.eval-option-group legend { padding:0 7px;color:var(--ink);font-weight:900 }
.eval-choice-grid { display:grid;grid-template-columns:repeat(auto-fit,minmax(145px,1fr));gap:12px }
.eval-choice { position:relative;display:grid;min-height:100px;place-items:center;gap:4px;border:2px solid var(--line);border-radius:18px;background:var(--surface-soft);padding:14px;text-align:center;cursor:pointer;transition:.16s ease }
.eval-choice input { position:absolute;opacity:0;pointer-events:none }
.eval-choice span { display:grid;width:44px;height:44px;place-items:center;border-radius:50%;background:var(--accent);color:#fff;font-weight:950 }
.eval-choice:has(input:checked) { border-color:var(--accent);background:var(--accent-soft);box-shadow:0 10px 24px rgba(8,105,247,.14);transform:translateY(-2px) }
.language-en span { background:#243d8e }.language-es span { background:#d94b35 }
.eval-settings-grid { display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px }
.eval-radio { display:flex;align-items:center;gap:9px;margin:10px 0;color:var(--ink);font-weight:720;cursor:pointer }
.eval-radio input { accent-color:var(--accent) }
.eval-select-label { display:grid;gap:7px;margin-top:14px;color:var(--muted);font-size:.82rem;font-weight:800 }
.eval-option-group select { width:100%;min-height:46px;border:1px solid var(--line);border-radius:14px;background:var(--surface);color:var(--ink);padding:0 13px }
.eval-option-group select:disabled { opacity:.45;cursor:not-allowed }
.eval-setup-status { min-height:22px;margin:0;color:var(--error);font-weight:800 }
.eval-setup-actions,.eval-session-actions { display:flex;flex-wrap:wrap;gap:10px }
.eval-setup-actions button,.eval-session-actions button { border-radius:999px }
.eval-setup-actions button:disabled { cursor:not-allowed;opacity:.42 }
.eval-history-panel strong { display:block;margin-bottom:10px }
.eval-history { display:grid;gap:7px;color:var(--muted);font-size:.84rem }
.eval-history-row { display:grid;grid-template-columns:1fr auto auto;gap:12px;align-items:center;border-radius:10px;background:var(--surface-soft);padding:8px 10px }
.eval-history-row strong { margin:0;color:var(--accent-dark) }
.eval-session { min-width:0 }
.eval-session-toolbar { display:flex;align-items:center;justify-content:space-between;gap:18px;margin-bottom:18px }
.eval-session-toolbar p { margin:0;color:var(--muted);font-weight:800 }
.eval-result { display:flex;align-items:center;justify-content:center;gap:14px;margin:0 0 20px;border:1px solid #b9e3cf;border-radius:18px;background:#eaf8f1;color:var(--success);padding:16px;text-align:center }
.eval-result strong { font-size:1.45rem }.eval-result span { font-weight:800 }
.eval-grid { display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:14px }
.eval-question-card { position:relative;display:flex;min-width:0;flex-direction:column;border:2px solid var(--line);border-radius:20px;background:var(--surface);padding:12px;box-shadow:var(--card-shadow);transition:.16s ease }
.eval-question-card.is-correct { border-color:#52b584;background:#effbf5 }
.eval-question-card.is-wrong { border-color:#e07878;background:#fff2f2 }
.eval-question-number { margin:0 0 8px;color:var(--accent-dark);font-size:.76rem }
.eval-question-card img { display:block;width:100%;aspect-ratio:1/1;border-radius:14px;background:#fff;object-fit:contain }
.eval-help-word { margin:10px 0 0;border-radius:10px;background:var(--accent-soft);color:var(--accent-dark);padding:7px 9px;text-align:center;font-size:clamp(.68rem,1.3vw,.95rem);font-weight:900;line-height:1.12;white-space:normal;overflow:visible;text-overflow:unset;overflow-wrap:anywhere;hyphens:auto }
.eval-question-card input { width:100%;min-width:0;min-height:44px;margin-top:10px;border:1px solid var(--line);border-radius:12px;background:var(--surface);color:var(--ink);padding:0 10px }
.eval-question-card.is-correct input { border-color:#52b584 }.eval-question-card.is-wrong input { border-color:#e07878 }
.eval-feedback { min-height:20px;margin:8px 0 0;font-size:.78rem;font-weight:850 }
.eval-question-card.is-correct .eval-feedback { color:var(--success) }.eval-question-card.is-wrong .eval-feedback { color:var(--error) }
.eval-listen-answer { width:100%;margin-top:auto;font-size:.72rem }

.qcm-launch-button { background:linear-gradient(135deg,#078b74,#086957) }
.qcm-dialog { width:min(96vw,1080px);max-width:none;height:min(94vh,1050px);max-height:none;border:0;border-radius:26px;background:var(--bg);color:var(--ink);padding:0;box-shadow:0 28px 80px rgba(10,25,70,.3) }
.qcm-dialog::backdrop { background:rgba(8,15,38,.72);backdrop-filter:blur(5px) }
.qcm-dialog-shell { min-height:100%;padding:clamp(18px,3vw,36px) }
.qcm-header { display:flex;align-items:flex-start;justify-content:space-between;gap:20px;margin-bottom:24px }
.qcm-header h2 { margin:0 0 8px;font-size:clamp(2rem,4vw,3.5rem);line-height:1 }
.qcm-header p:not(.section-label) { margin:0;color:var(--muted) }
.qcm-setup { display:grid;gap:20px }
.qcm-settings-grid { display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px }
.qcm-progress-row { display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:16px;border-radius:16px;background:var(--surface);padding:12px 16px;box-shadow:var(--card-shadow) }
.qcm-progress-row span { color:var(--accent-dark);font-weight:900 }
.qcm-question-card { width:min(100%,760px);margin:0 auto;border:1px solid var(--line);border-radius:26px;background:var(--surface);padding:clamp(14px,2.5vw,24px);box-shadow:var(--shadow) }
.qcm-image-frame { position:relative;width:min(100%,500px);margin:0 auto 20px }
.qcm-question-card img { display:block;width:100%;aspect-ratio:1/1;border-radius:20px;background:#fff;object-fit:contain;box-shadow:inset 0 0 0 1px var(--line) }
.qcm-image-number { position:absolute;z-index:1;left:10px;top:10px;display:grid;min-width:42px;height:42px;place-items:center;border-radius:12px;background:rgba(8,21,79,.88);color:#fff;padding:0 8px;font-size:.92rem;font-weight:950;box-shadow:0 5px 14px rgba(8,21,79,.22) }
.qcm-prompt { margin:0 auto 18px;border:1px solid var(--line);border-radius:18px;background:var(--surface-soft);padding:clamp(16px,3vw,28px);color:var(--ink);font-size:clamp(1.4rem,4vw,2.4rem);font-weight:950;text-align:center;line-height:1.15;overflow-wrap:anywhere }
.qcm-audio-prompt { margin:0 auto 18px }
.qcm-answers { display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px }
.qcm-written-answer { display:grid;grid-template-columns:minmax(0,1fr) auto;gap:10px }
.qcm-written-answer input { min-height:56px;border:2px solid var(--line);border-radius:16px;background:var(--surface-soft);color:var(--ink);padding:0 14px;font-size:1.05rem;font-weight:850;outline:none }
.qcm-written-answer input:focus { border-color:var(--accent);box-shadow:0 0 0 4px rgba(8,105,247,.12) }
.qcm-dialog.is-projection-mode .qcm-question-card { width:min(100%,900px) }
.qcm-dialog.is-projection-mode .qcm-answer-button,.qcm-dialog.is-projection-mode .qcm-written-answer input { font-size:clamp(1.05rem,2.3vw,1.65rem);min-height:76px }
.qcm-dialog.is-projection-mode .qcm-prompt { font-size:clamp(2rem,5vw,4rem) }
.qcm-answer-button { min-height:60px;border:2px solid var(--line);border-radius:16px;background:var(--surface-soft);color:var(--ink);padding:10px 14px;font-size:clamp(.74rem,1.5vw,1rem);font-weight:900;line-height:1.12;text-align:center;white-space:normal;overflow:visible;text-overflow:unset;overflow-wrap:anywhere;hyphens:auto;box-shadow:var(--card-shadow);transition:.16s ease }
.qcm-answer-button:hover:not(:disabled) { border-color:var(--accent);transform:translateY(-2px) }
.qcm-answer-button:disabled { cursor:default;opacity:1 }
.qcm-answer-button.is-correct { border-color:#45aa78;background:#e5f8ee;color:#087143 }
.qcm-answer-button.is-wrong { border-color:#dc6969;background:#fff0f0;color:#ad2626 }
.qcm-feedback { min-height:24px;margin:16px 0 0;text-align:center;font-weight:900 }
.qcm-feedback.is-correct { color:var(--success) }
.qcm-feedback.is-wrong { color:var(--error) }
.qcm-question-actions { display:flex;flex-wrap:wrap;justify-content:center;gap:10px;margin-top:12px }
.qcm-finish { display:grid;min-height:55vh;place-content:center;gap:24px;text-align:center }
.qcm-final-score { display:grid;gap:10px;border:1px solid #b9e3cf;border-radius:26px;background:#eaf8f1;color:var(--success);padding:clamp(28px,6vw,60px);box-shadow:var(--shadow) }
.qcm-final-score strong { font-size:clamp(2.2rem,7vw,5rem);line-height:1 }
.qcm-final-score span { font-size:1.1rem;font-weight:900 }
.qcm-finish .eval-session-actions { justify-content:center }
.qcm-dialog .eval-history ul { display:grid;gap:8px;margin:0;padding:0;list-style:none }
.qcm-dialog .eval-history li { display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:12px;border-radius:12px;background:var(--surface-soft);padding:9px 11px }
.qcm-dialog .eval-history li strong { margin:0;color:var(--accent-dark) }
.qcm-dialog .eval-history li small { color:var(--muted) }


.memory-launch-button { background:linear-gradient(135deg,#e26b19,#b94512) }
.memory-dialog { width:min(97vw,1400px);max-width:none;height:min(95vh,1120px);max-height:none;border:0;border-radius:26px;background:var(--bg);color:var(--ink);padding:0;box-shadow:0 28px 80px rgba(10,25,70,.3) }
.memory-dialog::backdrop { background:rgba(8,15,38,.72);backdrop-filter:blur(5px) }
.memory-dialog-shell { min-height:100%;padding:clamp(18px,3vw,36px) }
.memory-header { display:flex;align-items:flex-start;justify-content:space-between;gap:20px;margin-bottom:24px }
.memory-header h2 { margin:0 0 8px;font-size:clamp(2rem,4vw,3.5rem);line-height:1 }
.memory-header p:not(.section-label) { margin:0;color:var(--muted) }
.memory-setup { display:grid;gap:20px }
.memory-settings-grid { display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px }
.memory-stats { position:sticky;z-index:3;top:0;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px;margin-bottom:18px;border:1px solid var(--line);border-radius:18px;background:color-mix(in srgb,var(--surface) 94%,transparent);padding:12px;box-shadow:var(--shadow);backdrop-filter:blur(10px) }
.memory-stats > * { display:grid;min-height:42px;place-items:center;border-radius:12px;background:var(--surface-soft);padding:5px 8px;text-align:center;font-size:.88rem }
.memory-stats span { color:var(--accent-dark);font-weight:900 }
.memory-grid { display:grid;grid-template-columns:repeat(auto-fit,minmax(112px,1fr));gap:clamp(8px,1.5vw,14px);padding-bottom:10px;perspective:1000px }
.memory-card { min-width:0;aspect-ratio:.82/1;border:0;background:transparent;padding:0;perspective:900px }
.memory-card-inner { position:relative;display:block;width:100%;height:100%;transform-style:preserve-3d;transition:transform .45s cubic-bezier(.2,.7,.2,1) }
.memory-card.is-flipped .memory-card-inner,.memory-card.is-matched .memory-card-inner { transform:rotateY(180deg) }
.memory-card-face { position:absolute;inset:0;display:grid;place-items:center;overflow:hidden;border:2px solid var(--line);border-radius:18px;box-shadow:0 8px 20px rgba(20,45,100,.12);backface-visibility:hidden;-webkit-backface-visibility:hidden }
.memory-card-back { background:linear-gradient(145deg,#0b6bf7,#0751c8);color:#fff;font-size:clamp(2rem,5vw,4rem);font-weight:950;text-shadow:0 3px 12px rgba(0,0,0,.16) }
.memory-card-back::after { content:"";position:absolute;inset:9px;border:1px solid rgba(255,255,255,.28);border-radius:12px }
.memory-card-front { transform:rotateY(180deg);background:var(--surface);color:var(--ink);padding:8px }
.memory-card.is-matched .memory-card-front { border-color:#3aaa73;background:#eaf8f1;animation:memory-found .55s ease }
.memory-image-wrap { position:relative;width:100%;height:100% }
.memory-image-wrap img { display:block;width:100%;height:100%;border-radius:12px;background:#fff;object-fit:contain }
.memory-image-wrap span { position:absolute;z-index:1;left:5px;top:5px;display:grid;min-width:30px;height:30px;place-items:center;border-radius:9px;background:rgba(8,21,79,.86);color:#fff;padding:0 5px;font-size:.72rem;font-weight:950 }
.memory-word { max-width:100%;font-size:clamp(.62rem,2vw,1.35rem);line-height:1.12;white-space:normal;overflow:visible;text-overflow:unset;overflow-wrap:anywhere;hyphens:auto;text-align:center }
.memory-finish { display:grid;min-height:55vh;place-content:center;gap:24px;text-align:center }
.memory-final-result { display:grid;gap:12px;border:1px solid #b9e3cf;border-radius:26px;background:#eaf8f1;color:var(--success);padding:clamp(28px,6vw,60px);box-shadow:var(--shadow) }
.memory-final-result strong { font-size:clamp(1.6rem,5vw,3.5rem);line-height:1.1 }
.memory-final-result span { font-size:1.15rem;font-weight:900 }
.memory-finish .eval-setup-actions { justify-content:center }
@keyframes memory-found { 0%{transform:rotateY(180deg) scale(1)} 45%{transform:rotateY(180deg) scale(1.08)} 100%{transform:rotateY(180deg) scale(1)} }
.random-word-dialog { width:min(96vw,980px);max-width:none;border:0;border-radius:26px;background:var(--bg);color:var(--ink);padding:0;box-shadow:0 28px 80px rgba(10,25,70,.3) }
.random-word-dialog::backdrop { background:rgba(8,15,38,.72);backdrop-filter:blur(5px) }
.random-word-shell { padding:clamp(18px,3vw,34px) }
.random-word-header { display:flex;align-items:flex-start;justify-content:space-between;gap:18px;margin-bottom:20px }
.random-word-header h2 { margin:0 0 8px;font-size:clamp(2rem,4vw,3.2rem);line-height:1 }
.random-word-header p:not(.section-label) { margin:0;color:var(--muted) }
.random-word-setup,.random-word-result { display:grid;gap:16px }
.random-card { display:grid;grid-template-columns:minmax(280px,45%) 1fr;gap:clamp(1rem,2vw,2rem);align-items:center;border:1px solid var(--line);border-radius:24px;background:var(--surface);padding:18px;box-shadow:var(--card-shadow) }
.random-image-frame { position:relative;display:grid;place-items:center;margin:0;border-radius:20px;background:var(--surface-soft);min-height:280px;overflow:hidden }
.random-image-frame img { width:100%;height:100%;max-height:420px;object-fit:contain }
.random-card-copy { position:relative;display:grid;min-width:0;gap:12px;padding:clamp(1rem,2vw,1.6rem);border-radius:24px }
.random-word-card-number { position:absolute;top:clamp(.8rem,1.4vw,1.2rem);right:clamp(.8rem,1.4vw,1.2rem);z-index:2;display:inline-flex;min-width:52px;height:52px;align-items:center;justify-content:center;border-radius:999px;background:linear-gradient(180deg,#2f7cff,#073dbd);color:#fff;padding:0 .8rem;font-size:clamp(1.1rem,1.8vw,1.6rem);font-weight:900;box-shadow:0 8px 18px rgba(0,0,0,.25),inset 0 2px 0 rgba(255,255,255,.35) }
.random-language-pill { width:max-content;border-radius:999px;background:var(--accent-soft);color:var(--accent-dark);padding:7px 11px;font-weight:900 }
.random-card-copy > strong { font-size:clamp(2rem,4vw,4rem);line-height:1.05;white-space:normal;overflow:visible;text-overflow:unset;overflow-wrap:anywhere;hyphens:auto;text-align:center }
.random-word-result.is-single-translation .random-card-copy { padding-top:clamp(3.6rem,5vw,4.7rem) }
.random-word-result.is-single-translation .random-language-pill { justify-self:center;font-size:clamp(.95rem,1.2vw,1.15rem) }
.random-word-result.is-single-translation .random-card-copy > strong { font-size:clamp(2rem,4vw,4rem) }
.random-sheet-label { margin:0;color:var(--muted);font-weight:800 }
.random-translations { display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:.55rem;max-height:min(42vh,420px);overflow-y:auto;border-radius:18px;background:var(--surface-soft);padding:12px }
.random-translations p { display:block;margin:0;border:1px solid rgba(180,205,240,.7);border-radius:14px;background:rgba(255,255,255,.82);color:#0f1d3d;padding:.65rem .8rem;font-size:clamp(.95rem,1.4vw,1.25rem);font-weight:750;line-height:1.2;white-space:normal;overflow:visible;text-overflow:unset;overflow-wrap:anywhere;hyphens:auto }
.random-translations span { display:inline-block;margin-right:.45rem;color:#2563eb;font-size:.78em;font-weight:900 }
.random-translations strong { min-width:0;color:var(--ink);white-space:normal;overflow:visible;text-overflow:unset;overflow-wrap:anywhere;hyphens:auto;text-align:left }
.random-word-result.is-all-translations .random-card-copy { padding-top:clamp(3.6rem,5vw,4.6rem) }
.random-word-result.is-all-translations .random-card-copy > strong { font-size:clamp(1.45rem,2.6vw,2.65rem) }
.random-word-actions { display:flex;flex-wrap:wrap;gap:10px;justify-content:center }
.quiz-creator-dialog { width:min(96vw,1080px);max-width:none;border:0;border-radius:26px;background:var(--bg);color:var(--ink);padding:0;box-shadow:0 28px 80px rgba(10,25,70,.3) }
.quiz-creator-dialog::backdrop { background:rgba(8,15,38,.72);backdrop-filter:blur(5px) }
.quiz-creator-shell { display:grid;gap:20px;padding:clamp(18px,3vw,34px) }
.quiz-creator-header { display:flex;align-items:flex-start;justify-content:space-between;gap:18px;border-bottom:1px solid var(--line);padding-bottom:18px }
.quiz-creator-header h2 { margin:0 0 8px;font-size:clamp(2rem,4vw,3.2rem);line-height:1 }
.quiz-creator-header p:not(.section-label) { margin:0;color:var(--muted) }
.quiz-creator-steps { display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:12px }
.quiz-creator-step { display:grid;gap:7px;min-width:0;border:1px solid var(--line);border-radius:18px;background:var(--surface);padding:14px;box-shadow:var(--card-shadow) }
.quiz-creator-step span { display:grid;width:34px;height:34px;place-items:center;border-radius:12px;background:var(--accent-soft);color:var(--accent-dark);font-weight:950 }
.quiz-creator-step strong { color:var(--ink);line-height:1.1 }
.quiz-creator-step p { margin:0;color:var(--muted);font-size:.82rem;line-height:1.35 }
.quiz-creator-step.is-current { border-color:rgba(8,105,247,.38);background:linear-gradient(145deg,rgba(234,242,255,.95),var(--surface));box-shadow:0 14px 30px rgba(26,116,235,.12) }
.quiz-creator-placeholder { display:grid;gap:8px;border:1px dashed rgba(8,105,247,.32);border-radius:20px;background:var(--surface-soft);padding:18px;color:var(--muted) }
.quiz-creator-placeholder strong { color:var(--ink);font-size:1.05rem }
.quiz-creator-placeholder p { margin:0;line-height:1.5 }
.quiz-creator-config { display:grid;grid-template-columns:minmax(280px,1.1fr) minmax(280px,1.1fr);gap:16px;align-items:start }
.quiz-creator-panel { display:grid;gap:14px;border:1px solid var(--line);border-radius:22px;background:var(--surface);padding:18px;box-shadow:var(--card-shadow) }
.quiz-creator-words-panel,.quiz-creator-launch-panel { grid-column:1/-1 }
.quiz-creator-panel-heading { display:grid;gap:4px }
.quiz-creator-panel-heading strong { color:var(--ink);font-size:1.08rem }
.quiz-creator-panel-heading p { margin:0;color:var(--muted);font-size:.9rem;line-height:1.35 }
.quiz-creator-field { display:grid;gap:7px;color:var(--muted);font-size:.82rem;font-weight:850 }
.quiz-creator-field input,.quiz-creator-field select { width:100%;min-height:46px;border:1px solid var(--line);border-radius:14px;background:var(--surface-soft);color:var(--ink);padding:0 14px;outline:none }
.quiz-creator-field input:focus,.quiz-creator-field select:focus { border-color:rgba(8,105,247,.55);box-shadow:0 0 0 4px rgba(8,105,247,.12) }
.quiz-creator-source-actions { display:flex;flex-wrap:wrap;gap:8px }
.quiz-creator-source-actions button { min-height:38px;padding-inline:12px }
.quiz-creator-inline-field { display:inline-grid;grid-template-columns:auto 72px;align-items:center;gap:7px;color:var(--muted);font-size:.8rem;font-weight:850 }
.quiz-creator-inline-field input { width:72px;min-height:38px;border:1px solid var(--line);border-radius:12px;background:var(--surface-soft);color:var(--ink);padding:0 8px }
.quiz-creator-toggle { display:inline-flex;align-items:center;gap:8px;min-height:38px;border:1px solid var(--line);border-radius:13px;background:var(--surface-soft);padding:0 11px;color:var(--ink);font-size:.82rem;font-weight:850 }
.quiz-creator-toggle input { width:17px;height:17px;margin:0 }
.quiz-creator-sheet-list { display:grid;gap:8px;max-height:min(42vh,420px);overflow:auto;padding-right:4px }
.quiz-creator-sheet-option { display:grid;grid-template-columns:auto auto minmax(0,1fr);gap:8px 10px;align-items:center;border:1px solid var(--line);border-radius:14px;background:var(--surface-soft);padding:10px;cursor:pointer;transition:.16s ease }
.quiz-creator-sheet-option:hover { border-color:rgba(8,105,247,.34);transform:translateY(-1px) }
.quiz-creator-sheet-option:has(input:checked) { border-color:rgba(8,105,247,.55);background:var(--accent-soft) }
.quiz-creator-sheet-option input { width:18px;height:18px;margin:0 }
.quiz-creator-sheet-option span { display:grid;min-width:44px;min-height:28px;place-items:center;border-radius:9px;background:var(--surface);color:var(--accent-dark);font-size:.72rem;font-weight:950 }
.quiz-creator-sheet-option strong { min-width:0;color:var(--ink);font-size:.92rem;line-height:1.15;overflow-wrap:anywhere }
.quiz-creator-sheet-option em { grid-column:3/4;margin-top:-5px;color:var(--muted);font-size:.76rem;font-style:normal;line-height:1.2;overflow-wrap:anywhere }
.quiz-creator-empty { margin:0;border:1px dashed var(--line);border-radius:14px;padding:14px;color:var(--muted);text-align:center }
.quiz-creator-summary { display:grid;gap:6px;border:1px solid rgba(8,105,247,.22);border-radius:16px;background:var(--accent-soft);padding:14px }
.quiz-creator-summary strong { color:var(--accent-dark) }
.quiz-creator-summary p { margin:0;color:var(--ink);font-weight:780;line-height:1.35 }
.quiz-creator-count { margin:0;color:var(--muted);font-size:.86rem;font-weight:850 }
.quiz-creator-word-list { display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:9px;max-height:min(45vh,440px);overflow:auto;padding-right:4px }
.quiz-creator-word-option { display:grid;grid-template-columns:auto 54px minmax(0,1fr);gap:8px 10px;align-items:center;border:1px solid var(--line);border-radius:15px;background:var(--surface-soft);padding:9px;cursor:pointer;transition:.16s ease }
.quiz-creator-word-option:hover { border-color:rgba(8,105,247,.34);transform:translateY(-1px) }
.quiz-creator-word-option:has(input:checked) { border-color:rgba(8,105,247,.55);background:var(--accent-soft) }
.quiz-creator-word-option input { width:18px;height:18px;margin:0 }
.quiz-creator-word-option img { grid-row:1/3;grid-column:2/3;width:54px;height:54px;border-radius:12px;background:#fff;object-fit:contain;border:1px solid var(--line) }
.quiz-creator-word-option span { display:flex;gap:6px;align-items:center;min-width:0;color:var(--muted);font-size:.72rem;font-weight:950 }
.quiz-creator-word-option span b { display:grid;min-width:28px;height:24px;place-items:center;border-radius:8px;background:var(--surface);color:var(--accent-dark);font-size:.7rem }
.quiz-creator-word-option strong,.quiz-creator-word-option em { min-width:0;overflow-wrap:anywhere;line-height:1.15 }
.quiz-creator-word-option strong { color:var(--ink);font-size:.95rem }
.quiz-creator-word-option em { color:var(--muted);font-size:.82rem;font-style:normal }
.quiz-creator-type-grid { display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:9px }
.quiz-creator-type-card { display:grid;min-height:62px;place-items:center;border:1px solid var(--line);border-radius:16px;background:var(--surface-soft);padding:10px;text-align:center;color:var(--ink);font-weight:900;cursor:pointer;transition:.16s ease }
.quiz-creator-type-card input { position:absolute;opacity:0;pointer-events:none }
.quiz-creator-type-card:has(input:checked) { border-color:rgba(8,105,247,.58);background:var(--accent-soft);box-shadow:0 10px 24px rgba(8,105,247,.12) }
.quiz-creator-options-grid { display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:10px }
.quiz-creator-preview-panel:empty { display:none }
.quiz-creator-preview-panel dl { display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:10px;margin:0 }
.quiz-creator-preview-panel div { border:1px solid var(--line);border-radius:14px;background:var(--surface-soft);padding:10px }
.quiz-creator-preview-panel dt { color:var(--muted);font-size:.72rem;font-weight:900;text-transform:uppercase }
.quiz-creator-preview-panel dd { margin:4px 0 0;color:var(--ink);font-weight:850;line-height:1.25 }
.quiz-creator-presets { display:grid;gap:8px }
.quiz-creator-preset-row { display:grid;grid-template-columns:minmax(0,1fr) auto auto auto;gap:8px;align-items:center;border:1px solid var(--line);border-radius:14px;background:var(--surface-soft);padding:10px }
.quiz-creator-preset-row strong,.quiz-creator-preset-row span { min-width:0;overflow-wrap:anywhere }
.quiz-creator-preset-row span { color:var(--muted);font-size:.8rem;font-weight:800 }
.quiz-creator-actions { display:flex;flex-wrap:wrap;gap:10px;justify-content:flex-end }

@media (max-width: 1250px) { .sheet-grid { grid-template-columns: repeat(6, minmax(92px, 1fr)); } .filters { grid-template-columns: 1fr; }.filter-buttons { flex-wrap: wrap; } }
@media (max-width: 980px) { .dashboard { grid-template-columns: 84px minmax(0,1fr); }.sidebar { padding-inline: 8px; }.brand-mark { width:58px;height:58px;font-size:1.7rem }.brand > span:last-child,.nav-item:not(.is-active) { font-size:0 }.nav-item { justify-content:center;padding:0 }.nav-item span { font-size:1.45rem }.sidebar-widgets { display:none }.home-main { padding:28px 20px 100px }.sheet-grid { grid-template-columns:repeat(4,minmax(94px,1fr)) }.reader-hero { grid-template-columns:1fr }.reader-copy,.sheet-preview { min-height:auto }.eval-settings-grid,.eval-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.eval-session-toolbar{align-items:flex-start;flex-direction:column}.memory-stats{grid-template-columns:repeat(2,minmax(0,1fr))}.memory-grid{grid-template-columns:repeat(auto-fit,minmax(100px,1fr))} }
@media (max-width: 680px) { .dashboard { display:block }.sidebar { position:fixed;top:auto;bottom:0;left:0;right:0;height:72px;display:block;border-top:1px solid var(--line);border-right:0;padding:7px 8px;box-shadow:0 -8px 25px rgba(20,40,90,.09) }.brand,.sidebar-widgets { display:none }.main-nav { display:grid;grid-template-columns:repeat(7,1fr);gap:3px;margin:0 }.nav-item,.nav-item:not(.is-active) { min-height:56px;display:grid;gap:0;place-items:center;border-radius:10px;padding:3px;font-size:.56rem }.nav-item span { width:auto;font-size:1.25rem }.home-main { padding:20px 12px 92px }.home-header { align-items:center;margin-bottom:20px }.home-header h1 { font-size:1.55rem }.home-header p { font-size:.78rem }.header-actions .streak-pill,.icon-button { display:none }.filters { gap:12px;margin-bottom:16px }.global-search-row,.search-result-card { grid-template-columns:1fr }.sheet-search { min-height:46px }.filter-buttons { display:grid;grid-template-columns:repeat(4,1fr);gap:6px }.filter-button { min-width:0;justify-content:center;padding:0 5px;font-size:.66rem }.filter-button span { display:none }.search-result-card img { width:100%;height:150px }.search-results-header { align-items:flex-start;flex-direction:column }.sheet-grid { grid-template-columns:repeat(2,minmax(0,1fr));gap:10px }.sheet-card { min-height:145px }.reader-view { width:min(100% - 18px,1280px);padding-top:10px }.toolbar,.actions { display:grid;grid-template-columns:1fr }.reader-copy { padding:22px 16px }.sheet-title-row{grid-template-columns:minmax(0,1fr) 104px;gap:12px}.sheet-title-block{width:100%;padding:1rem 3.9rem 1rem 1rem;border-radius:24px}.reader-copy .sheet-title-main{font-size:clamp(2.15rem,10vw,3.9rem);line-height:1}.sheet-title-sub{font-size:clamp(1.05rem,5vw,1.65rem)}.sheet-title-kicker{font-size:.7rem;letter-spacing:.13em}.section-heading { align-items:flex-start;flex-direction:column }.word-grid { grid-template-columns:1fr }.written-eval-dialog,.qcm-dialog,.memory-dialog{width:100vw;height:100vh;border-radius:0}.eval-dialog-shell,.qcm-dialog-shell,.memory-dialog-shell{padding:12px}.eval-header,.qcm-header,.memory-header{align-items:flex-start}.eval-header h2,.qcm-header h2,.memory-header h2{font-size:1.8rem}.eval-header p:not(.section-label),.qcm-header p:not(.section-label),.memory-header p:not(.section-label){font-size:.8rem}.eval-choice-grid,.eval-settings-grid,.eval-grid,.qcm-settings-grid,.qcm-answers,.memory-settings-grid{grid-template-columns:1fr}.eval-choice{min-height:72px;grid-template-columns:auto 1fr;justify-items:start;text-align:left}.eval-choice span{grid-row:1/3}.eval-setup-actions,.eval-session-actions,.qcm-question-actions{display:grid;grid-template-columns:1fr;width:100%}.eval-history-row{grid-template-columns:1fr auto}.eval-history-row span:nth-child(2){display:none}.eval-result{align-items:center;flex-direction:column;gap:4px}.eval-question-card{padding:10px}.qcm-question-card{padding:10px}.qcm-image-frame{width:min(100%,360px);margin-bottom:12px}.qcm-answer-button{min-height:54px}.qcm-dialog .eval-history li{grid-template-columns:auto 1fr}.qcm-dialog .eval-history li small{display:none}.memory-stats{gap:6px;margin-bottom:10px;padding:7px}.memory-stats > *{min-height:34px;font-size:.72rem}.memory-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:6px}.memory-card-face{border-radius:11px}.memory-card-front{padding:4px}.memory-image-wrap img{border-radius:8px}.memory-image-wrap span{left:3px;top:3px;min-width:23px;height:23px;border-radius:6px;font-size:.6rem}.memory-word{font-size:clamp(.62rem,3.3vw,.92rem)} }
@media (max-width: 800px) { .random-card{grid-template-columns:1fr}.random-card-copy{padding-top:4rem}.random-word-card-number{top:.8rem;right:.8rem}.random-word-result.is-single-translation .random-card-copy > strong{font-size:clamp(1.8rem,8vw,3rem)}.random-word-result.is-all-translations .random-card-copy > strong{font-size:clamp(1.45rem,6vw,2.25rem)} }
@media (max-width: 900px) { .quiz-creator-config{grid-template-columns:1fr}.quiz-creator-words-panel,.quiz-creator-launch-panel{grid-column:auto}.quiz-creator-preset-row{grid-template-columns:1fr 1fr}.quiz-creator-preset-row strong,.quiz-creator-preset-row span{grid-column:1/-1} }
@media (max-width: 760px) { .quiz-creator-steps{grid-template-columns:1fr 1fr}.quiz-creator-actions{display:grid;grid-template-columns:1fr}.quiz-creator-header{align-items:flex-start}.quiz-creator-header h2{font-size:1.8rem}.qcm-written-answer{grid-template-columns:1fr}.quiz-creator-word-list{grid-template-columns:1fr;max-height:36vh} }
@media (max-width: 680px) { .random-word-dialog,.quiz-creator-dialog{width:100vw;height:100vh;border-radius:0}.random-word-shell,.quiz-creator-shell{padding:12px}.random-word-header{align-items:flex-start}.random-word-header h2{font-size:1.8rem}.random-card{grid-template-columns:1fr;padding:12px}.random-image-frame{min-height:220px}.random-word-actions{display:grid;grid-template-columns:1fr}.random-translations{grid-template-columns:1fr;max-height:32vh}.random-card-copy > strong{font-size:clamp(2rem,12vw,3.4rem)} }
@media (max-width: 680px) { .sheet-favorite-button{top:.78rem;right:.72rem;width:2.85rem;height:2.85rem;font-size:2rem}.favorite-dropdown{position:fixed;top:72px;right:10px;left:10px;width:auto;max-height:calc(100vh - 92px)}.home-favorite-button{width:42px}.header-actions{gap:8px} }
@media (max-width: 460px) { .quiz-creator-steps{grid-template-columns:1fr} }