@import url("/assets/vendor/fontawesome/css/all.min.css");
@font-face {
  font-family: "Google Sans Flex";
  src: url("/assets/fonts/google-sans-flex-latin.woff2") format("woff2");
  font-weight: 400 700;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Google Sans Flex";
  src: url("/assets/fonts/google-sans-flex-latin-ext.woff2") format("woff2");
  font-weight: 400 700;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Nunito";
  src: url("/assets/fonts/nunito-latin.woff2") format("woff2");
  font-weight: 400 800;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Roboto";
  src: url("/assets/fonts/roboto-latin.woff2") format("woff2");
  font-weight: 400 700;
  font-style: normal;
  font-display: swap;
}


:root {
  color-scheme: light;
  --font-ui: "Google Sans Flex", system-ui, -apple-system, "Segoe UI", sans-serif;
  --bg: #f7f8fb;
  --panel: #ffffff;
  --panel-strong: #eef2f7;
  --text: #172033;
  --muted: #657083;
  --border: #d8dee9;
  --primary: #2563eb;
  --primary-contrast: #ffffff;
  --danger: #b42318;
  --success: #0f7b45;
  --shadow: 0 18px 45px rgba(18, 25, 38, 0.12);
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #11151c;
  --panel: #171c25;
  --panel-strong: #202734;
  --text: #eef3fb;
  --muted: #a7b2c5;
  --border: #313a4a;
  --primary: #6ea8fe;
  --primary-contrast: #0d1420;
  --success: #3dd68c;
  --shadow: 0 18px 45px rgba(0, 0, 0, 0.34);
}

:root[data-font="nunito"] { --font-ui: "Nunito", "Google Sans Flex", system-ui, sans-serif; }
:root[data-font="roboto"] { --font-ui: "Roboto", "Google Sans Flex", system-ui, sans-serif; }

* { box-sizing: border-box; }
body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-ui);
}

button, input, select { font: inherit; }
button { cursor: pointer; white-space: normal; }
button:disabled { cursor: not-allowed; opacity: 0.55; }
.hidden { display: none !important; }
.shell { min-height: 100vh; }
.auth-panel { min-height: 100vh; display: grid; grid-template-rows: auto 1fr; }
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 22px;
  border-bottom: 1px solid var(--border);
}
.actions { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.login-box {
  width: min(420px, calc(100vw - 32px));
  margin: auto;
  display: grid;
  gap: 14px;
  padding: 26px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: var(--shadow);
}
h1, h2, p { margin-top: 0; }
h1 { font-size: 1.6rem; margin-bottom: 0; }
h2 { font-size: 1.05rem; margin-bottom: 0; }
p { color: var(--muted); line-height: 1.5; }
label { display: grid; gap: 6px; color: var(--muted); }
.checkbox-label { display: flex; align-items: center; gap: 8px; }
.checkbox-label input { width: auto; }
.modal-backdrop { position: fixed; inset: 0; background: rgba(10, 14, 22, 0.55); display: grid; place-items: center; padding: 16px; z-index: 50; }
.modal-backdrop .actions { justify-content: flex-end; }
input, select {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 10px 12px;
  color: var(--text);
  background: var(--panel);
}
.primary, .secondary, .icon-button, .link-button, .title-button {
  min-height: 38px;
  border-radius: 6px;
  border: 1px solid var(--border);
  padding: 8px 12px;
  background: var(--panel);
  color: var(--text);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}
.primary { border-color: var(--primary); background: var(--primary); color: var(--primary-contrast); }
.link-button { min-height: 0; border: 0; padding: 0; background: transparent; color: var(--primary); justify-content: flex-start; }
.danger { color: var(--danger); }
.secondary:hover, .icon-button:hover, .title-button:hover { background: var(--panel-strong); }
.icon-button { width: 38px; padding: 0; }
.feedback { min-height: 1.4em; margin: 0; color: var(--danger); }
.feedback.success { color: var(--success); }
.workspace { min-height: 100vh; display: grid; }
.main { min-width: 0; display: flex; flex-direction: column; }
.main > .topbar { order: 1; }
.main-nav { order: 2; display: flex; gap: 8px; padding: 8px 16px; border-bottom: 1px solid var(--border); background: var(--panel); }
.main > .page { order: 3; }
.main-nav button { display: inline-flex; align-items: center; gap: 8px; border: 0; border-radius: 10px; padding: 9px 12px; background: transparent; color: var(--text); cursor: pointer; }
.main-nav button:hover, .main-nav button.active { background: var(--panel-strong); color: var(--accent); }
.main-nav button:disabled { opacity: .5; cursor: not-allowed; }
.nav-group { position: relative; }
.nav-flyout { position: absolute; top: 100%; left: 0; z-index: 20; display: none; width: 260px; gap: 6px; padding: 12px; border: 1px solid var(--border); border-radius: 0 12px 12px 12px; background: var(--panel); box-shadow: var(--shadow); }
.nav-group:hover .nav-flyout, .nav-group:focus-within .nav-flyout, .nav-group.is-open .nav-flyout { display: grid; }
.nav-flyout strong { padding: 4px 8px 8px; font-size: .85rem; color: var(--muted); }
.nav-flyout button, .nav-flyout a { display: grid; gap: 3px; width: 100%; justify-content: start; text-align: left; color: var(--text); text-decoration: none; border-radius: 8px; padding: 9px; }
.nav-flyout a:hover { background: var(--panel-strong); }
.nav-flyout small { color: var(--muted); }
.divers-module { display: grid; gap: 16px; max-width: 920px; margin: 24px auto; padding: 24px; border: 1px solid var(--border); border-radius: 14px; background: var(--panel); }
.module-intro { margin: -8px 0 0; }
.multiplication-toolbar { display: flex; gap: 12px; justify-content: space-between; align-items: center; }
.multiplication-status { color: var(--muted); font-size: .9rem; }
.multiplication-exercise { display: grid; gap: 18px; padding: 22px; border-radius: 12px; background: color-mix(in srgb, var(--panel-strong) 86%, var(--primary) 14%); }
.multiplication-meta { display: flex; justify-content: space-between; min-height: 1.25em; color: var(--muted); font-weight: 700; }
.multiplication-question { font-size: clamp(2.6rem, 8vw, 4.8rem); font-weight: 800; line-height: 1.1; text-align: center; padding: 30px 20px; border-radius: 12px; background: var(--panel); letter-spacing: .04em; }
.multiplication-settings { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; align-items: end; padding: 16px; border: 1px solid var(--border); border-radius: 12px; background: var(--panel-strong); }
.multiplication-settings fieldset { grid-column: 1 / -1; display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 8px; padding: 12px; border: 1px solid var(--border); border-radius: 10px; }
.multiplication-settings legend { float: none; width: auto; padding: 0 6px; font-size: .9rem; color: var(--muted); }
.multiplication-settings label { display: flex; flex-direction: column; gap: 6px; margin: 0; }
.multiplication-settings fieldset label { flex-direction: row; align-items: center; justify-content: center; padding: 8px; border-radius: 8px; background: var(--panel-strong); cursor: pointer; }
.multiplication-settings input[type="checkbox"] { width: auto; min-height: 0; margin: 0; }
.multiplication-visual-toggle { flex-direction: row !important; align-items: center; justify-content: end; min-height: 42px; }
.multiplication-timer { height: 5px; border-radius: 999px; background: var(--primary); transition: width .05s linear; }
.multiplication-answer { justify-content: center; }
.multiplication-answer input { max-width: 360px; text-align: center; font-size: 1.15rem; }
.multiplication-hint { text-align: center; margin: -8px 0 0; font-size: .85rem; }
.multiplication-visual { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; min-height: 0; }
.multiplication-group { display: flex; flex-wrap: wrap; justify-content: center; gap: 4px; max-width: 170px; padding: 8px; border-radius: 10px; background: color-mix(in srgb, var(--panel) 80%, transparent); }
.multiplication-dot { width: 16px; height: 16px; border-radius: 50%; }
.pc-options { display: flex; flex-wrap: wrap; gap: 14px; padding: 14px; border: 1px solid var(--border); border-radius: 12px; background: var(--panel-strong); }
.pc-options label { display: flex; align-items: center; gap: 8px; }
.pc-options select { min-width: 100px; }
.pc-question { display: grid; gap: 14px; text-align: center; font-size: clamp(1.35rem, 4vw, 2.2rem); }
.pc-question small { color: var(--muted); font-size: .95rem; font-weight: 400; }
.pc-progress { display: flex; flex-wrap: wrap; justify-content: center; gap: 6px; min-height: 8px; }
.pc-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--border); }
.pc-dot-done { background: var(--primary); }
.moulin-modes { display: grid; gap: 12px; }
.moulin-modes label { display: flex; align-items: center; gap: 10px; }
.moulin-modes select { width: auto; min-width: 210px; }
.moulin-game { display: grid; gap: 18px; }
.moulin-score { display: flex; justify-content: space-between; gap: 10px; color: var(--muted); text-align: center; }
.moulin-score strong { color: var(--text); }
.moulin-board { position: relative; display: grid; grid-template-columns: repeat(7, 1fr); grid-template-rows: repeat(7, 1fr); aspect-ratio: 1; max-width: 620px; width: min(100%, 620px); margin: auto; border: 4px solid var(--border); background: linear-gradient(135deg, var(--panel-strong), var(--panel)); }
.moulin-lines { position: absolute; inset: 0; width: 100%; height: 100%; overflow: visible; }
.moulin-lines line { stroke: var(--muted); stroke-width: 3px; vector-effect: non-scaling-stroke; }
.moulin-cell { width: 68%; justify-self: center; align-self: center; aspect-ratio: 1; min-height: 0; border-radius: 50%; border: 2px solid var(--muted); background: var(--panel); padding: 0; z-index: 1; }
.moulin-cell.p1 { background: #5aa8ff; border-color: #a8d0ff; box-shadow: 0 0 0 3px color-mix(in srgb, #5aa8ff 25%, transparent); }
.moulin-cell.p2 { background: #ed77ab; border-color: #ffc0d9; box-shadow: 0 0 0 3px color-mix(in srgb, #ed77ab 25%, transparent); }
.title-context {
  min-height: 44px;
  padding: 6px 0;
  flex-direction: column;
  align-items: flex-start;
  gap: 2px;
  text-align: left;
}
.title-context strong { font-size: 1rem; }
.title-context small { color: var(--muted); }
.brand-logo { display: block; width: auto; height: 42px; max-width: 180px; object-fit: contain; object-position: left center; }
.page { padding: 24px; }
.narrow { max-width: 720px; display: grid; gap: 16px; }
.wide { display: grid; gap: 16px; }
.empty-state { min-height: calc(100vh - 120px); display: grid; place-content: center; text-align: center; }

.account-page {
  max-width: 1080px;
  margin: 0 auto;
}
.account-grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 12px;
}
.account-card {
  display: grid;
  grid-column: span 6;
  align-content: start;
  gap: 10px;
  padding: 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--panel);
}
.account-card-wide { grid-column: 1 / -1; }
.account-card h2 {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 1rem;
}
.account-card label { gap: 4px; }
.account-card input,
.account-card select { padding: 8px 10px; }
.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}
.card-actions,
.inline-action {
  display: flex;
  align-items: end;
  gap: 10px;
  flex-wrap: wrap;
}
.inline-action > label,
.inline-action > input { flex: 1 1 220px; }
.card-actions { justify-content: flex-start; }
.account-card .item-list:empty::before {
  content: "-";
  color: var(--muted);
}
.settings-block { display: grid; gap: 12px; padding: 16px 0; border-bottom: 1px solid var(--border); }
.section-heading { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.status-pill { border: 1px solid var(--border); border-radius: 999px; padding: 4px 10px; color: var(--muted); }
.totp-box, .recovery-box { display: grid; gap: 10px; }
.totp-qr-frame {
  width: fit-content;
  padding: 8px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #fff;
}
.totp-qr-frame img {
  display: block;
  width: 180px;
  height: 180px;
}
code { overflow-wrap: anywhere; padding: 10px; border-radius: 6px; background: var(--panel-strong); }
.item-list, .recovery-box ul, .audit-log { display: grid; gap: 8px; padding: 0; margin: 0; list-style: none; }
.list-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 38px 38px;
  align-items: center;
  gap: 8px;
  padding: 8px 0;
  border-bottom: 1px solid var(--border);
}
.language-switcher { position: relative; }
.language-switcher summary {
  list-style: none;
  min-width: 42px;
  min-height: 38px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--panel);
}
.language-switcher summary::-webkit-details-marker { display: none; }
.locale-flag { width: 22px; height: 15px; object-fit: cover; border-radius: 2px; }
.language-menu {
  position: absolute;
  right: 0;
  top: calc(100% + 6px);
  z-index: 5;
  min-width: 190px;
  display: grid;
  gap: 4px;
  padding: 8px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: var(--shadow);
}
.language-menu a { display: flex; align-items: center; gap: 8px; padding: 8px; border-radius: 6px; color: var(--text); text-decoration: none; }
.language-menu a:hover, .language-menu a.active { background: var(--panel-strong); }

@media (max-width: 780px) {
  .topbar { align-items: flex-start; flex-wrap: wrap; }
}

.table-wrap { width: 100%; overflow-x: auto; }
.data-table { width: 100%; border-collapse: collapse; min-width: 820px; }
.data-table th, .data-table td { padding: 10px 8px; border-bottom: 1px solid var(--border); text-align: left; vertical-align: middle; }
.data-table th { color: var(--muted); font-weight: 700; }
.data-table td small { display: block; color: var(--muted); margin-top: 3px; }
.data-table td:last-child { display: flex; gap: 8px; }
.admin-create { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 8px; }
.audit-log li { padding: 10px 0; border-bottom: 1px solid var(--border); color: var(--muted); overflow-wrap: anywhere; }

.session-row { grid-template-columns: minmax(0, 1fr) auto; }
.session-row small { display: block; color: var(--muted); margin-top: 3px; overflow-wrap: anywhere; }


@media (max-width: 560px) {
  .multiplication-toolbar, .multiplication-meta { align-items: flex-start; flex-direction: column; }
  .multiplication-settings { grid-template-columns: 1fr; }
  .multiplication-settings fieldset { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .multiplication-visual-toggle { justify-content: start; }
  .main-nav { position: sticky; bottom: 0; z-index: 10; justify-content: space-around; order: 3; padding: 8px; }
  .main-nav button { flex-direction: column; gap: 3px; font-size: 11px; padding: 7px; }
  .nav-flyout { position: fixed; right: 12px; bottom: 64px; left: 12px; width: auto; }
  .topbar { padding: 12px; gap: 10px; }
  .topbar > .actions { width: 100%; justify-content: flex-start; }
  .auth-panel .topbar > .actions { width: auto; }
  .title-button { min-width: min(100%, 240px); }
  .page { padding: 16px; }
  .login-box { width: min(420px, calc(100vw - 24px)); padding: 20px; }
  .section-heading { align-items: flex-start; flex-wrap: wrap; }
  .settings-block > .actions,
  .card-actions,
  .inline-action { align-items: stretch; }
  .settings-block > .actions .secondary,
  .settings-block > .actions .primary,
  .card-actions .secondary,
  .card-actions .primary,
  .inline-action .secondary,
  .inline-action .primary {
    flex: 1 1 180px;
  }
  .account-grid,
  .form-grid { grid-template-columns: 1fr; }
  .account-card { grid-column: 1; padding: 16px; }
  .admin-create { grid-template-columns: 1fr; }
  .admin-create > * { min-width: 0; }
  .admin-create .primary { width: 100%; }
  .data-table { min-width: 720px; }
}