@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700&display=swap');
:root{--bg:#f7f6f2;--card:#fff;--ink:#292d29;--muted:#8d9189;--line:#e9eae4;--red:#c85a49;--red-soft:#fae9e4;--green:#54785b;--shadow:0 12px 34px rgba(35,42,33,.055)}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font-family:'DM Sans',sans-serif;-webkit-font-smoothing:antialiased}.app-shell{max-width:540px;min-height:100svh;margin:auto;padding:0 22px 105px}.topbar{height:68px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;gap:9px;text-decoration:none;color:var(--ink);font-size:14px;font-weight:700;letter-spacing:.13em}.brand small{font-size:10px;letter-spacing:.2em;color:var(--muted)}.brand-mark{display:grid;place-items:center;width:32px;height:32px;border-radius:11px;background:var(--red);color:white;font-size:17px}.top-meta{display:flex;align-items:center;gap:12px;font-size:12px}.streak,.xp-pill{background:#fff;border:1px solid var(--line);padding:7px 10px;border-radius:20px}.xp-pill{color:#98732f}.view{display:none;padding-top:24px;animation:fade .22s ease}.view.active{display:block}@keyframes fade{from{opacity:0;transform:translateY(4px)}to{opacity:1;transform:none}}.welcome{padding:10px 0 21px}.eyebrow{font-size:9px;letter-spacing:.16em;font-weight:700;color:var(--red);margin:0 0 9px}.welcome h1,.page-title{font-size:35px;line-height:1.12;letter-spacing:-.055em;margin:0;font-weight:700}.accent{color:var(--red)}.subcopy{font-size:12px;line-height:1.6;color:var(--muted);margin:9px 0 0}.daily-card{background:#28312b;color:#fff;border-radius:19px;padding:18px;box-shadow:var(--shadow)}.daily-top,.daily-bottom{display:flex;align-items:center;justify-content:space-between;gap:10px}.pill{font-size:8px;letter-spacing:.13em;color:#d3d9d0}.live-dot{display:inline-block;width:6px;height:6px;border-radius:50%;background:#d98a71;margin-right:6px}.lesson-number{font-size:10px;color:#b9c1b8}.daily-content{display:flex;align-items:center;justify-content:space-between;padding:23px 0 18px}.lesson-kicker{font-size:8px;letter-spacing:.14em;color:#d4a99b;margin:0 0 6px}.daily-content h2{font-size:22px;margin:0;letter-spacing:-.04em}.lesson-desc{font-size:11px;color:#c4ccc3;margin:6px 0 0}.hero-symbol{width:58px;height:58px;border:1px solid #59645b;border-radius:17px;display:grid;place-items:center;font-size:25px;color:#f0d9cd;background:#ffffff0a}.progress-line{height:4px;background:#4a554b;border-radius:9px;overflow:hidden}.progress-line span{display:block;width:0;height:100%;background:#e08a72;border-radius:9px;transition:width .3s}.daily-bottom{padding-top:14px;font-size:9px;color:#c1c9c0}.primary-btn{border:0;background:var(--red);color:white;padding:12px 15px;border-radius:10px;font:600 11px 'DM Sans';cursor:pointer;transition:transform .15s,background .15s}.primary-btn:active{transform:scale(.97);background:#a94a3c}.primary-btn:disabled{opacity:.42;cursor:not-allowed}.primary-btn b{margin-left:7px}.quick-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:9px;margin:15px 0 27px}.quick-stats div{background:#fff;border:1px solid var(--line);border-radius:13px;padding:12px;display:flex;align-items:baseline;gap:4px}.quick-stats strong{font-size:20px;letter-spacing:-.04em}.quick-stats small{font-size:9px;color:var(--muted)}.section-heading{display:flex;align-items:end;justify-content:space-between;margin:25px 0 12px}.section-heading h2{font-size:19px;letter-spacing:-.04em;margin:0}.section-heading .eyebrow{margin-bottom:5px}.tool-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}.tool-card{border:1px solid var(--line);background:#fff;border-radius:15px;padding:14px;text-align:left;display:grid;grid-template-columns:42px 1fr;grid-template-rows:auto auto;column-gap:10px;align-items:center;color:var(--ink);cursor:pointer;min-height:78px}.tool-icon{grid-row:1/3;width:42px;height:42px;border-radius:13px;display:grid;place-items:center;font-size:19px}.peach{background:#f9e8e1}.lilac{background:#eeeafa}.sage{background:#e9f0e7}.yellow{background:#f8f0dc}.tool-card b{font-size:12px;align-self:end}.tool-card small{font-size:9px;color:var(--muted);align-self:start;margin-top:3px}.compact{margin-top:26px}.goal-label{font-size:9px;color:var(--muted)}.goal-track,.course-track{height:6px;background:#e7e8e2;border-radius:9px;overflow:hidden}.goal-track span,.course-track span{display:block;width:0;height:100%;background:#7d9a78;border-radius:9px;transition:width .3s}.goal-caption{font-size:10px;color:var(--muted);margin:7px 0}.back-link{border:0;background:none;padding:0;color:var(--muted);font:500 11px 'DM Sans';margin:0 0 23px;cursor:pointer}.page-title{font-size:31px}.course-summary{background:#fff;border:1px solid var(--line);border-radius:14px;padding:14px;margin:18px 0 22px;font-size:11px;color:var(--muted)}.course-summary strong{font-size:20px;color:var(--ink);margin-right:4px}.course-summary .course-track{margin-top:10px}.course-unit{margin:22px 0}.course-lesson{width:100%;display:flex;align-items:center;gap:11px;text-align:left;padding:11px 9px;margin:7px 0;background:#fff;border:1px solid var(--line);border-radius:13px;color:var(--ink)}.course-lesson:not(:disabled){cursor:pointer}.course-lesson.is-done{border-color:#d0dfcc;background:#f7faf5}.course-lesson.is-locked{opacity:.45}.lesson-node{width:35px;height:35px;flex:0 0 35px;border-radius:12px;display:grid;place-items:center;background:#f5eee3;color:#8a7657;font-weight:700;font-size:11px}.is-done .lesson-node{background:#e1eddd;color:#54785b}.course-lesson-copy{display:flex;flex-direction:column;gap:4px;flex:1}.course-lesson-copy b{font-size:12px}.course-lesson-copy small{font-size:9px;color:var(--muted)}.course-lesson-status{font-size:9px;color:var(--red);white-space:nowrap}.is-done .course-lesson-status{color:var(--green)}.lesson-progress-head{display:flex;justify-content:space-between;font-size:9px;letter-spacing:.12em;color:var(--muted);margin:0 0 8px}.lesson-progress{margin-bottom:22px;background:#e7e8e2}.lesson-unit{margin-top:20px}.exercise-card,.quiz-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:18px 16px;margin:17px 0;box-shadow:var(--shadow)}.exercise-top{display:flex;align-items:center;justify-content:space-between}.card-label{font-size:8px;letter-spacing:.14em;color:var(--muted);font-weight:700}.sound-btn{width:39px;height:39px;border:0;border-radius:13px;background:#f7eee9;font-size:17px;cursor:pointer}.exercise-prompt{font-size:clamp(23px,7vw,32px);font-weight:700;text-align:center;letter-spacing:-.04em;padding:25px 4px 10px;overflow-wrap:anywhere}.exercise-instruction{text-align:center;color:var(--muted);font-size:10px;margin:0 0 16px}.quiz-options{display:grid;gap:8px}.quiz-option{padding:12px;border:1px solid var(--line);background:#fff;border-radius:10px;text-align:left;font:500 11px 'DM Sans';color:var(--ink);cursor:pointer}.quiz-option.chosen{border-color:var(--red);background:#fff5f1}.quiz-option.correct{border-color:#8eae89;background:#f0f7ee}.quiz-option.wrong{border-color:#d78b7d;background:#fff1ed}.quiz-option:disabled{cursor:default}.quiz-feedback{font-size:11px;min-height:17px;color:var(--green);line-height:1.5}.quiz-feedback.try-again{color:var(--red)}.quiz-feedback.good{color:var(--green)}.full{width:100%;margin-top:9px}.answer-input{width:100%;padding:14px;border:1px solid var(--line);border-radius:10px;font:500 13px 'DM Sans';outline:none;margin:8px 0}.answer-input:focus{border-color:var(--red)}.answer-input.input-correct{border-color:var(--green);background:#f0f7ee}.answer-input.input-wrong{border-color:var(--red);background:#fff1ed}.input-check{margin:0 0 9px}.lesson-note{display:flex;gap:10px;background:#f0eee7;border-radius:13px;padding:13px;margin:15px 0}.lesson-note b{font-size:10px}.lesson-note p{font-size:10px;line-height:1.5;color:#777d73;margin:4px 0 0}.review-counter{display:flex;justify-content:space-between;font-size:10px;color:var(--muted);margin:15px 2px 0}.flashcard-scene{perspective:1100px;margin:15px 0;min-height:290px}.flashcard{min-height:290px;cursor:pointer;border-radius:19px;-webkit-tap-highlight-color:transparent}.flashcard-inner{position:relative;width:100%;min-height:290px;transform-style:preserve-3d;transition:transform .7s cubic-bezier(.2,.72,.2,1)}.flashcard.flipped .flashcard-inner{transform:rotateY(180deg)}.flashcard-face{position:absolute;inset:0;min-height:290px;display:flex;align-items:center;justify-content:center;flex-direction:column;background:linear-gradient(145deg,#fff,#faf8f2);border:1px solid var(--line);border-radius:19px;backface-visibility:hidden;-webkit-backface-visibility:hidden;padding:22px;box-shadow:var(--shadow)}.flashcard-face strong{font-size:clamp(27px,7vw,39px);line-height:1.25;text-align:center;overflow-wrap:anywhere;margin:26px 0 18px}.flashcard-face small{font-size:9px;color:var(--muted);margin-top:12px}.flashcard-back{transform:rotateY(180deg);background:linear-gradient(145deg,#29342c,#202920);border-color:#3d4a3e;color:#fff}.flashcard-back strong{color:#fff}.flashcard-back .card-label{color:#c7d0c5}.flashcard-back .review-actions{display:grid;grid-template-columns:repeat(2,1fr);gap:7px;width:100%;margin-top:16px}.review-actions button{padding:10px 6px;border:1px solid #ffffff35;border-radius:9px;background:#ffffff12;color:#fff;font:500 10px 'DM Sans'}.review-actions button:active{background:#ffffff30}.flash-actions{display:flex;align-items:center;justify-content:space-between;gap:12px}.secondary-btn{background:#fff;border:1px solid var(--line);padding:11px 15px;border-radius:10px;font:500 11px 'DM Sans';color:var(--ink)}.flashcard-tip{text-align:center;color:var(--muted);font-size:10px;margin-top:20px}.grammar-card{background:#fff;border:1px solid var(--line);border-radius:13px;margin:9px 0;overflow:hidden}.grammar-card summary{display:flex;align-items:center;gap:12px;padding:13px;cursor:pointer;list-style:none}.grammar-card summary::-webkit-details-marker{display:none}.grammar-num{width:32px;height:32px;border-radius:10px;background:#f7eee9;color:var(--red);display:grid;place-items:center;font-size:10px;font-weight:700}.grammar-card summary span:nth-child(2){display:flex;flex-direction:column;gap:3px;flex:1}.grammar-card summary b{font-size:12px}.grammar-card summary small{font-size:9px;color:var(--muted)}.grammar-plus{color:var(--muted)}.grammar-body{padding:0 14px 14px 57px;font-size:11px;line-height:1.6;color:#686e65}.example-romaji{background:#f4f3ee;border-radius:9px;padding:10px;margin:9px 0;color:var(--ink);font-weight:700}.grammar-tip{font-size:10px;color:var(--muted)}.quiz-word{font-size:clamp(27px,8vw,40px);font-weight:700;text-align:center;padding:25px 0;overflow-wrap:anywhere}.bottom-nav{position:fixed;z-index:5;bottom:0;left:50%;transform:translateX(-50%);width:min(540px,100%);padding:9px 18px calc(9px + env(safe-area-inset-bottom));background:#f7f6f2ed;backdrop-filter:blur(16px);border-top:1px solid var(--line);display:flex;justify-content:space-around}.nav-btn{border:0;background:none;color:#989d94;display:flex;flex-direction:column;align-items:center;gap:3px;min-width:52px;cursor:pointer}.nav-btn span{font-size:17px;line-height:21px}.nav-btn small{font-size:9px}.nav-btn.selected{color:var(--red)}.toast{position:fixed;bottom:88px;left:50%;transform:translate(-50%,12px);background:#28312b;color:white;padding:11px 16px;border-radius:10px;font-size:11px;opacity:0;pointer-events:none;transition:.25s;z-index:10;white-space:nowrap}.toast.show{opacity:1;transform:translate(-50%,0)}@media(min-width:600px){body{padding:20px 0}.app-shell{background:var(--bg);border:1px solid var(--line);border-radius:23px;min-height:calc(100svh - 40px);box-shadow:var(--shadow);padding-left:30px;padding-right:30px}.bottom-nav{bottom:20px;border-radius:0 0 23px 23px}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation:none!important;transition:none!important}}