:root { --ink:#17352c; --muted:#566b62; --paper:#f7f4ec; --white:#fff; --green:#237257; --lime:#d7ed9f; --line:#dce3d9; --shadow:0 18px 50px #17352c12; color-scheme:light; }
* { box-sizing:border-box; }
body { margin:0; background:var(--paper); color:var(--ink); font:16px/1.55 system-ui,-apple-system,"Segoe UI",sans-serif; }
button,input,textarea,select { font:inherit; }
button { cursor:pointer; border:0; color:inherit; min-height:44px; }
button:disabled { opacity:.5; cursor:not-allowed; transform:none!important; }
button,input,textarea,select,a { -webkit-tap-highlight-color:transparent; }
:focus-visible { outline:3px solid #507818; outline-offset:4px; }
.hidden,[hidden] { display:none!important; }
.skip-link { position:fixed; top:-100px; left:16px; background:var(--ink); color:white; padding:12px 20px; z-index:10; }
.skip-link:focus { top:12px; }
header { min-height:82px; padding:14px max(24px,calc((100% - 1120px)/2)); display:flex; align-items:center; justify-content:space-between; gap:16px; border-bottom:1px solid #d9ded5; background:#fbfaf5; }
.brand { display:flex; align-items:center; gap:12px; text-decoration:none; color:var(--ink); font-size:20px; white-space:nowrap; }
.brand span { display:grid; place-items:center; width:42px; height:42px; background:var(--ink); color:var(--lime); border-radius:13px; font-weight:800; }
.private-label { font-size:10px; font-weight:750; letter-spacing:.16em; color:var(--muted); }
.session-nav { display:flex; align-items:center; gap:10px; min-width:0; }
.account-button { background:#e7eddc; padding:9px 16px; border-radius:24px; font-weight:700; max-width:220px; overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }
main { max-width:1168px; margin:auto; padding:52px 24px 72px; min-height:calc(100dvh - 164px); }
.page { display:none; }
.page.active { display:block; }
.loading-page.active { min-height:60vh; display:flex; justify-content:center; align-items:center; gap:12px; }
.loading-dot { width:10px; height:10px; border-radius:50%; background:var(--green); animation:pulse 1.2s infinite; }
@keyframes pulse { 50% { opacity:.3; } }
.eyebrow { letter-spacing:.16em; font-size:11px; font-weight:800; color:var(--green); margin:0 0 12px; }
h1,h2,h3,p { overflow-wrap:anywhere; }
h1,h2 { font-family:Georgia,serif; letter-spacing:-.035em; }
h1 { font-size:clamp(46px,6vw,76px); line-height:1.06; margin:0; }
h2 { font-size:44px; line-height:1.15; margin:0; }
h3 { font-size:20px; margin:0 0 10px; letter-spacing:-.025em; }
.muted,.field-help { color:var(--muted); }
.field-help { display:block; font-size:13px; line-height:1.55; margin:7px 0 0; }
.panel { background:var(--white); border:1px solid var(--line); border-radius:22px; padding:28px; }
.primary { background:var(--green); color:white; border-radius:12px; padding:12px 19px; font-weight:700; transition:background .15s,transform .15s; }
.primary:hover:not(:disabled) { background:#195c46; }
.ghost { background:transparent; border:1px solid #bbc8bb; padding:10px 15px; border-radius:12px; }
.ghost:hover:not(:disabled) { background:#e9eee3; }
.wide { width:100%; margin-top:18px; }
.wide-button { width:100%; display:flex; justify-content:space-between; align-items:center; margin-top:20px; }
.stack-form { display:flex; flex-direction:column; }
.stack-form label { display:block; font-size:14px; font-weight:700; margin:18px 0 7px; }
.stack-form>label:first-child { margin-top:0; }
input,textarea,select { border:1px solid #bdcbbd; border-radius:10px; background:white; padding:12px 13px; color:var(--ink); width:100%; min-width:0; }
input { min-height:48px; }
textarea { resize:vertical; }
input::placeholder,textarea::placeholder { color:#6b7b72; }
.stack-form>.primary { align-self:flex-start; margin-top:22px; }
.password-field { display:flex; align-items:center; border:1px solid #bdcbbd; border-radius:10px; overflow:visible; }
.password-field input { border:0; background:transparent; }
.show-password { flex-shrink:0; font-size:12px; font-weight:650; padding:0 13px; background:transparent; border-radius:9px; color:var(--green); }
.password-field:focus-within { outline:3px solid #507818; outline-offset:4px; }
.password-field input:focus-visible { outline:0; }
.form-error { margin:14px 0 0; color:#982f27; background:#fff0e9; border:1px solid #efccbf; padding:11px 13px; border-radius:10px; font-size:14px; }
.success-note { color:#195a40; background:#eef6df; border:1px solid #c5dbaa; padding:12px 14px; border-radius:12px; font-size:14px; }
.login-layout { display:grid; grid-template-columns:1.1fr 1fr; gap:66px; align-items:center; min-height:650px; }
.login-story { padding:12px 0 0; }
.login-story h1 { font-size:clamp(48px,5.2vw,66px); }
.login-story h1 em { font-weight:400; }
.login-intro { color:var(--muted); font-size:18px; margin:22px 0 0; }
.card-illustration { position:relative; height:220px; max-width:350px; margin:42px 0 24px 20px; }
.illustration-back { position:absolute; width:295px; height:180px; left:16px; top:12px; border-radius:18px; background:#e3edc9; border:1px solid #bdcf9f; transform:rotate(-10deg); font:24px Georgia,serif; padding:20px; }
.illustration-front { position:absolute; left:3px; top:22px; width:310px; height:188px; border-radius:18px; padding:25px 30px; transform:rotate(4deg); background:var(--ink); color:white; box-shadow:0 12px 30px #17352c22; }
.illustration-front span { display:block; font-size:9px; letter-spacing:.18em; color:var(--lime); }
.illustration-front b { display:block; font:26px/1.25 Georgia,serif; margin:15px 0; }
.illustration-front i { font-size:10px; font-style:normal; color:#d1ded1; }
.story-foot { display:flex; align-items:center; gap:9px; font-size:12px; color:var(--muted); }
.tiny-dot { width:7px; height:7px; border-radius:50%; background:var(--green); }
.login-panel { padding:42px; background:white; border:1px solid var(--line); border-radius:26px; box-shadow:var(--shadow); }
.login-mark { display:grid; place-items:center; width:44px; height:44px; border-radius:14px; background:#e9f1db; font-size:24px; margin-bottom:28px; }
.login-panel h2 { font-size:43px; }
.login-panel>.muted { margin:18px 0 30px; max-width:310px; }
.access-note { display:flex; gap:12px; margin-top:26px; padding-top:21px; border-top:1px solid var(--line); align-items:start; }
.access-note>span { font-size:22px; color:var(--green); }
.access-note p { margin:0; color:var(--muted); font-size:12px; line-height:1.7; }
.home-top { display:flex; align-items:end; justify-content:space-between; gap:28px; margin-bottom:38px; }
.hero>p:last-child { color:var(--muted); font-size:18px; margin:21px 0 0; }
.home-stats { display:flex; gap:24px; padding-bottom:4px; }
.home-stats b { display:block; font:32px Georgia,serif; line-height:1.2; }
.home-stats span { color:var(--muted); font-size:12px; }
.menu-grid { display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:18px; }
.menu-card { min-height:235px; padding:26px 28px; text-align:left; border:1px solid var(--line); border-radius:22px; background:white; display:flex; flex-direction:column; align-items:flex-start; transition:transform .2s,box-shadow .2s; }
.menu-card:hover { transform:translateY(-3px); box-shadow:var(--shadow); }
.menu-card.solo { background:var(--ink); color:white; border-color:var(--ink); }
.menu-card.together { background:var(--lime); border-color:#c8df98; }
.menu-card .icon { font-size:28px; line-height:1.1; }
.menu-card b { font:700 28px Georgia,serif; margin-top:22px; }
.menu-card small { font-size:13px; margin:7px 0 20px; color:var(--muted); }
.menu-card.solo small { color:#c9d5cc; }
.menu-card.together small { color:#40593b; }
.menu-card i { font-style:normal; font-size:13px; font-weight:700; margin-top:auto; }
.menu-card i span { padding-left:12px; }
.first-steps { margin-top:25px; display:flex; align-items:center; gap:24px; padding:27px 30px; border:1px dashed #b5c6a9; border-radius:20px; }
.first-steps>div { flex:1; }
.first-steps .eyebrow { display:block; margin-bottom:6px; }
.first-steps h3 { margin:0; }
.first-steps p { margin:6px 0 0; font-size:14px; color:var(--muted); max-width:650px; }
.first-steps>button { flex-shrink:0; }
.admin-shortcut { display:flex; align-items:center; gap:20px; background:#e9eee3; border:1px solid #d5dfcd; border-radius:16px; width:100%; padding:18px 22px; text-align:left; margin-top:24px; }
.admin-shortcut span { font-size:10px; font-weight:800; letter-spacing:.12em; color:var(--green); }
.admin-shortcut b { font-size:15px; }.admin-shortcut i { margin-left:auto; font-style:normal; }
.title-row { display:flex; justify-content:space-between; align-items:start; gap:20px; margin-bottom:30px; }
.title-row>.ghost { flex-shrink:0; }
.title-row .muted { max-width:620px; margin:14px 0 0; }
.account-grid { display:grid; grid-template-columns:.9fr 1.1fr; gap:24px; align-items:start; }
.avatar { display:grid; place-items:center; height:62px; width:62px; border-radius:18px; background:#e5eed4; font-size:28px; font-family:Georgia,serif; margin-bottom:20px; }
.account-summary h3 { font-size:23px; }.account-summary p { margin:8px 0 18px; }
hr { border:0; border-top:1px solid var(--line); margin:28px 0; }
.badge { display:inline-block; background:#eaf0df; border:1px solid #d5dfc6; color:#345630; border-radius:20px; padding:5px 10px; font-size:11px; font-weight:700; }
.badge.disabled { background:#f1ece6; color:#745340; border-color:#e0d5c7; }
.admin-grid { display:grid; grid-template-columns:400px minmax(0,1fr); gap:30px; align-items:start; }
.list-title { display:flex; align-items:center; justify-content:space-between; gap:12px; margin-bottom:16px; }.list-title h3 { margin:0; }
.user-entry { padding:22px; border:1px solid var(--line); border-radius:18px; background:white; margin-bottom:12px; }
.user-heading { display:flex; align-items:start; justify-content:space-between; gap:15px; }.user-heading h3 { margin:0; font-size:18px; }
.user-entry p { color:var(--muted); font-size:13px; margin:6px 0 0; }.user-entry .actions { justify-content:flex-start; margin-top:17px; flex-wrap:wrap; }
.user-entry .ghost { padding:7px 12px; font-size:12px; }
.manage-grid { display:grid; grid-template-columns:270px minmax(0,1fr); gap:22px; align-items:start; }
.manage-grid .panel { padding:22px; }
.manage-grid aside label { display:block; font-weight:700; margin:6px 0 8px; }
.mini-form { display:flex; gap:6px; margin:8px 0 25px; }.mini-form .primary { padding:8px 13px; }
.tabs { display:flex; gap:4px; border-bottom:1px solid var(--line); margin-bottom:22px; overflow-x:auto; padding:4px 4px 0; }
.tabs button { flex-shrink:0; background:transparent; padding:10px 13px; border-bottom:3px solid transparent; font-size:14px; }
.tabs button.active { border-color:var(--green); font-weight:700; }
.tab { display:none; }.tab.active { display:block; }
.actions { display:flex; justify-content:flex-end; gap:10px; margin-top:18px; }
.empty-hint { font-size:14px; color:var(--muted); padding:16px; border-radius:12px; background:#f4f6ef; }
.drop { text-align:center; padding:30px 24px; border:2px dashed #bdcbbd; border-radius:18px; background:#f8faf5; }
.import-icon { font-size:34px; display:block; margin-bottom:10px; }.drop h3 { font-size:22px; }.drop p { color:var(--muted); font-size:14px; }
.drop input { display:block; margin:12px auto 20px; padding:10px; font-size:13px; }.file-label { font-weight:700; font-size:14px; }
.example { background:var(--ink); color:#e6f1d9; padding:18px; border-radius:12px; white-space:pre-wrap; overflow-wrap:anywhere; font-size:12px; line-height:1.8; }
.list-card { border-bottom:1px solid var(--line); padding:20px 0; }.list-card:first-child { padding-top:0; }
.list-card p { margin:8px 0; color:var(--muted); white-space:pre-wrap; }.list-card .row { display:flex; justify-content:space-between; gap:15px; align-items:start; }.list-card .row b { overflow-wrap:anywhere; min-width:0; }
.list-card .actions { flex-shrink:0; margin:0; gap:5px; }.list-card .ghost { font-size:12px; padding:8px 10px; }
.choices { display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:15px; margin:28px 0; }.subject-choice { background:white; border:1px solid var(--line); border-radius:18px; padding:22px; }
.check { display:flex; align-items:center; gap:12px; padding:10px 6px; min-height:44px; border-radius:10px; cursor:pointer; }.check:hover { background:#f1f5ec; }.check input { width:20px; height:20px; min-height:20px; flex-shrink:0; accent-color:var(--green); }.check small { color:var(--muted); }
.empty-state { grid-column:1/-1; padding:34px; border:1px dashed #b5c6a9; border-radius:18px; }.empty-state p { color:var(--muted); margin:8px 0 20px; }
.big-button { font-size:17px; padding:15px 24px; }
.learn-top { display:grid; grid-template-columns:1fr 220px 1fr; align-items:center; gap:18px; margin-bottom:30px; }.learn-top>:last-child { justify-self:end; }.learn-top>:first-child { justify-self:start; }
.progress { height:5px; background:#d9ded7; border-radius:5px; margin-top:7px; }.progress i { display:block; height:100%; width:0; background:var(--green); border-radius:5px; transition:width .25s; }
.flip-wrap { perspective:1200px; max-width:800px; height:440px; margin:auto; }
.flashcard { position:relative; width:100%; height:100%; padding:0; background:transparent; transform-style:preserve-3d; transition:transform .5s; }.flashcard.flipped { transform:rotateY(180deg); }
.face { position:absolute; inset:0; backface-visibility:hidden; border-radius:26px; padding:40px; display:flex; flex-direction:column; align-items:center; justify-content:center; box-shadow:var(--shadow); background:white; overflow:hidden; border:1px solid var(--line); }
.card-content { width:100%; flex:1; min-height:0; overflow-x:hidden; overflow-y:auto; display:flex; flex-direction:column; overscroll-behavior:contain; padding:15px 0; }
.card-content h2,.card-content p { width:100%; margin:auto 0; overflow-wrap:anywhere; white-space:pre-wrap; }
.face small,.together-card small { font-weight:800; font-size:11px; letter-spacing:.17em; color:var(--green); }.face h2 { font-size:clamp(28px,4vw,43px); }.face span { color:var(--muted); font-size:13px; }
.face.back { transform:rotateY(180deg); background:var(--ink); color:white; border-color:var(--ink); }.face.back p { font-size:23px; }.face.back small { color:var(--lime); }.face.back span { color:#c0cec4; }
.together-card { display:none; grid-template-columns:1fr 1fr; max-width:930px; min-height:380px; margin:auto; background:white; border-radius:26px; overflow:hidden; box-shadow:var(--shadow); border:1px solid var(--line); }.together-card>div { padding:40px; min-width:0; }.together-card>div+div { background:var(--ink); color:white; }.together-card h2 { font-size:34px; white-space:pre-wrap; }.together-card p { font-size:21px; white-space:pre-wrap; }.together-card>div+div small { color:var(--lime); }
.learn-controls { display:flex; justify-content:center; gap:14px; margin-top:26px; }
footer { border-top:1px solid #dfe3d8; max-width:1120px; margin:0 auto; padding:22px 0; display:flex; align-items:center; justify-content:space-between; font-size:11px; color:var(--muted); }footer>span { font-weight:750; }footer p { margin:0; }
#toast { position:fixed; z-index:20; right:22px; bottom:22px; max-width:min(450px,calc(100% - 32px)); background:var(--ink); color:white; padding:14px 18px; border-radius:12px; box-shadow:var(--shadow); transform:translateY(130px); opacity:0; transition:.2s; pointer-events:none; }#toast.show { transform:none; opacity:1; }
dialog { width:480px; max-width:calc(100% - 32px); max-height:calc(100dvh - 40px); border:1px solid var(--line); border-radius:22px; padding:28px; color:var(--ink); box-shadow:0 24px 80px #0004; }dialog::backdrop { background:#17352c75; }dialog h2 { font-size:28px; }.dialog-heading { display:flex; align-items:center; justify-content:space-between; gap:12px; }.dialog-heading .ghost { flex-shrink:0; padding:6px 12px; }
@media(max-width:1000px) { .login-layout { gap:32px; }.login-panel { padding:30px; }.admin-grid { grid-template-columns:360px minmax(0,1fr); gap:22px; }.home-top { align-items:start; }.home-stats { gap:18px; }.list-card .row { flex-direction:column; } }
@media(max-width:760px) {
  header { min-height:72px; padding:12px 16px; gap:10px; }.brand { font-size:18px; gap:8px; }.brand span { width:38px; height:38px; border-radius:12px; }.private-label { display:none; }.session-nav { gap:7px; }.session-nav>.ghost { font-size:12px; padding:8px 10px; }.account-button { max-width:150px; font-size:13px; padding:8px 12px; }
  main { padding:34px 16px 48px; }.login-layout { display:block; min-height:0; max-width:480px; margin:auto; }.login-story { display:none; }.login-panel { padding:30px; }.login-panel h2 { font-size:40px; }.login-mark { margin-bottom:24px; }
  h1 { font-size:clamp(43px,10vw,62px); }h2 { font-size:34px; }.home-top { display:block; margin-bottom:28px; }.home-stats { margin-top:25px; gap:28px; }.home-stats b { font-size:26px; }.hero>p:last-child { font-size:16px; margin-top:17px; }
  .menu-grid,.account-grid,.admin-grid,.manage-grid,.choices { grid-template-columns:minmax(0,1fr); }.menu-card { min-height:205px; padding:23px; }.menu-card b { font-size:27px; margin-top:16px; }.menu-grid { gap:13px; }.first-steps { flex-direction:column; align-items:start; padding:23px; gap:20px; }.first-steps>button { width:100%; }.admin-shortcut { flex-wrap:wrap; gap:8px 16px; }.admin-shortcut span { width:100%; }
  .title-row { flex-wrap:wrap; gap:14px; margin-bottom:25px; }.title-row>.ghost { font-size:12px; }.panel { padding:23px; }.admin-grid { gap:28px; }.user-heading { flex-wrap:wrap; gap:8px; }.manage-grid { gap:16px; }.manage-grid aside { padding:22px; }.manage-grid aside .field-help { margin-top:15px; }
  .tabs { display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); overflow:visible; gap:0; }.tabs button { padding:9px 4px; font-size:12px; line-height:1.35; }.drop { padding:25px 16px; }.choices { gap:12px; }.empty-state { padding:25px; }.learn-top { grid-template-columns:1fr 1fr; gap:10px; }.learn-top>div { order:3; grid-column:1/3; margin-top:8px; }.learn-top>.ghost { font-size:12px; padding:9px 11px; }.flip-wrap { height:440px; }.face { padding:28px 22px; }.face.back p { font-size:21px; }.together-card { grid-template-columns:1fr; }.together-card>div { padding:28px; }.together-card h2 { font-size:30px; }.together-card p { font-size:20px; }
  footer { margin:0 16px; padding:20px 0; }dialog { padding:22px; }.actions { flex-wrap:wrap; }.list-card .actions { flex-wrap:wrap; }
}
@media(max-width:380px) { .brand strong { display:none; }.account-button { max-width:135px; }.login-panel { padding:25px 22px; }.login-panel h2 { font-size:35px; }.login-panel .eyebrow { font-size:10px; }.learn-controls { gap:8px; }.learn-controls button { font-size:13px; padding:11px 12px; }.show-password { padding:0 10px; } }
@media(prefers-reduced-motion:reduce) { *,*::before,*::after { animation:none!important; transition:none!important; scroll-behavior:auto!important; }.menu-card:hover { transform:none; } }