:root{color-scheme:light;font-family:Inter,SF Pro Display,Segoe UI,PingFang SC,Noto Sans SC,sans-serif;background:radial-gradient(circle at top left,rgba(74,214,255,.18),transparent 22%),radial-gradient(circle at top right,rgba(79,118,255,.14),transparent 24%),radial-gradient(circle at bottom center,rgba(87,236,217,.12),transparent 30%),linear-gradient(180deg,#f7fbff,#f3f8ff 42%,#eef5fb);color:#142033}*{box-sizing:border-box}body{margin:0;min-width:320px;min-height:100vh;background:radial-gradient(circle at 12% 18%,rgba(87,199,255,.16),transparent 0 18rem),radial-gradient(circle at 85% 10%,rgba(118,137,255,.12),transparent 0 15rem),radial-gradient(circle at 50% 100%,rgba(93,239,216,.12),transparent 0 18rem),linear-gradient(180deg,#f7fbff,#f3f8ff 42%,#eef5fb)}button,input,select,textarea{font:inherit}button{cursor:pointer}.app-shell{width:min(1760px,calc(100% - 24px));margin:0 auto;padding:18px 0 28px;position:relative}.dashboard-layout{display:grid;grid-template-columns:300px minmax(0,1fr);gap:14px;align-items:start}.side-rail{display:grid;gap:12px;position:sticky;top:18px}.main-stage{min-width:0}.hero,.toolbar,.panel,.stat-card{border:1px solid rgba(122,171,255,.16);background:linear-gradient(180deg,#ffffffd6,#f8fcffeb);-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);box-shadow:0 24px 60px #3861a214,inset 0 1px #ffffffb8}.hero{display:grid;grid-template-columns:1fr;gap:12px;border-radius:20px;padding:14px 18px;position:relative;overflow:hidden;align-items:start}.hero:before{content:"";position:absolute;inset:0;background:linear-gradient(120deg,rgba(66,213,255,.08),transparent 38%),radial-gradient(circle at 78% 24%,rgba(87,127,255,.09),transparent 0 10rem);pointer-events:none}.eyebrow{margin:0 0 8px;color:#1889d8;text-transform:uppercase;letter-spacing:.18em;font-size:.72rem;font-weight:700}.hero h1{margin:0;font-size:clamp(1.3rem,1.6vw,1.85rem);line-height:1.06;letter-spacing:-.04em;max-width:10ch}.hero-copy{max-width:16rem;margin:8px 0 0;color:#5a6d86;line-height:1.45;font-size:.94rem}.hero-panel{display:grid;grid-template-columns:1fr;gap:10px;align-self:center}.hero-stat,.stat-card{border-radius:20px;padding:13px 15px;background:linear-gradient(180deg,#fffffff2,#f6fbfff2);border:1px solid rgba(122,171,255,.12)}.hero-stat span,.stat-card span,.detail-meta span,.card-header span,.field-block label{display:block;color:#70849d;font-size:.88rem}.hero-stat strong,.stat-card strong{display:block;margin-top:6px;font-size:1.28rem}.toolbar{margin-top:12px;display:flex;flex-wrap:wrap;gap:12px;align-items:center;padding:14px;border-radius:18px}.alphabet-bar{margin-top:10px;display:flex;flex-wrap:wrap;gap:8px;padding:10px 12px;border:1px solid rgba(122,171,255,.14);border-radius:16px;background:linear-gradient(180deg,#ffffffd6,#f7fbffeb);box-shadow:0 16px 34px #3861a20d,inset 0 1px #ffffffb3}.alphabet-bar button{border:1px solid rgba(122,171,255,.12);border-radius:12px;min-width:34px;padding:7px 9px;background:#ffffffeb;color:#55708d;font-size:.82rem;font-weight:700}.alphabet-bar button.active{background:linear-gradient(135deg,#0dcaf0,#2a7fff);color:#fff;border-color:transparent;box-shadow:0 10px 24px #2a7fff38}.alphabet-bar button:disabled{opacity:.32;cursor:not-allowed}.info-panel{margin-top:14px;border:1px solid rgba(122,171,255,.16);border-radius:20px;background:linear-gradient(180deg,#ffffffd1,#f7fbffeb);box-shadow:0 18px 40px #3861a20f,inset 0 1px #ffffffb8;overflow:hidden}.info-panel details{padding:0}.info-panel summary{list-style:none;padding:18px 22px;font-weight:700;color:#184e9e;cursor:pointer;display:flex;align-items:center;justify-content:space-between}.info-panel summary::-webkit-details-marker{display:none}.info-panel summary:after{content:"+";font-size:1.2rem;color:#2a7fff}.info-panel details[open] summary:after{content:"−"}.info-grid{display:grid;gap:14px;padding:0 18px 18px}.info-block{border:1px solid rgba(122,171,255,.12);border-radius:20px;background:#ffffffad;padding:16px 18px}.info-block h3{margin:0 0 10px;font-size:1rem;color:#173254}.info-block p,.info-block li{color:#4e637d;line-height:1.75}.info-block p{margin:0}.info-block ul{margin:10px 0 0;padding-left:20px}.segment{display:inline-flex;padding:4px;border-radius:999px;background:#5596ff14;border:1px solid rgba(85,150,255,.14)}.segment button,.status-group button{border:0;border-radius:999px;background:transparent;color:#5b6f87;padding:10px 14px}.segment button.active,.status-group button.active{background:linear-gradient(135deg,#0dcaf0,#2a7fff);color:#fff;box-shadow:0 10px 24px #2a7fff52}.search,.toolbar select,.field-block input,.field-block textarea{border:1px solid rgba(122,171,255,.16);border-radius:16px;background:#ffffffeb;color:#142033}.search,.toolbar select,.field-block input{padding:12px 14px}.search{flex:1;min-width:220px}.search::placeholder,.field-block textarea::placeholder,.field-block input::placeholder{color:#8a9db3}.stats-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:10px;margin-top:12px}.stats-grid-side{grid-template-columns:1fr;margin-top:0}.workspace-grid{display:grid;grid-template-columns:minmax(760px,1.35fr) minmax(460px,.9fr);gap:14px;margin-top:12px;align-items:start}.panel{border-radius:22px;padding:16px}.detail-panel{position:sticky;top:18px;max-height:calc(100vh - 36px);display:flex;flex-direction:column}.panel-header{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:12px}.panel-header h2{margin:0;font-size:1.3rem;letter-spacing:-.02em}.word-list{display:grid;gap:10px;max-height:calc(100vh - 250px);min-height:calc(100vh - 250px);overflow:auto;padding-right:6px}.word-row{width:100%;border:1px solid rgba(122,171,255,.12);border-radius:18px;background:linear-gradient(180deg,#fffffffa,#f7fbfffa);padding:14px;text-align:left;transition:transform .15s ease,border-color .15s ease,box-shadow .15s ease;position:relative;overflow:hidden}.word-row:hover,.word-row.selected{transform:translateY(-1px);border-color:#3ea0ff66;box-shadow:0 18px 40px #4778c11f,0 0 0 1px #45c1ff1a}.word-title,.meta-row,.detail-meta{display:flex;flex-wrap:wrap;gap:10px;align-items:center}.word-title strong{font-size:1.06rem}.row-quick-actions{position:absolute;top:10px;right:10px;display:flex;flex-wrap:wrap;justify-content:flex-end;gap:6px;max-width:min(70%,420px);opacity:0;transform:translateY(-4px);pointer-events:none;transition:opacity .14s ease,transform .14s ease}.word-row:hover .row-quick-actions,.word-row.selected .row-quick-actions,.word-row:focus-visible .row-quick-actions{opacity:1;transform:translateY(0);pointer-events:auto}.quick-status-chip{border:1px solid rgba(122,171,255,.16);border-radius:999px;padding:6px 10px;font-size:.72rem;line-height:1;background:#ffffffeb;color:#57708a;box-shadow:0 10px 24px #4778c114}.quick-status-chip:hover{border-color:#2a7fff3d;color:#2256a8}.quick-status-chip.active{background:linear-gradient(135deg,#0dcaf0,#2a7fff);color:#fff;border-color:transparent}.level-pill,.status-pill,.card-pill,.card-badge{display:inline-flex;align-items:center;border-radius:999px;padding:6px 10px;font-size:.78rem;border:1px solid transparent}.level-pill{background:#3570ff24;color:#2f67d8;border-color:#3570ff38}.status-pill{background:#edf4ffeb;color:#3f5570}.status-known{background:#29d68d1f;color:#179d68;border-color:#29d68d38}.status-unsure,.status-review{background:#ffbc4c1f;color:#bf7a12;border-color:#ffbc4c38}.status-unknown,.status-confusing{background:#ff725e1f;color:#ce5a45;border-color:#ff725e38}.card-pill{background:#0dcaf01f;color:#0f8cae;border-color:#0dcaf038}.card-pill.muted{background:#f0f5fbf5;color:#8394a7;border-color:#7aabff1f}.tag-row{margin:10px 0 0;color:#71849b;font-size:.94rem;max-width:calc(100% - 12px)}.status-group{display:flex;flex-wrap:wrap;gap:10px}.detail-tabs{display:inline-flex;gap:8px;padding:4px;margin-bottom:12px;border-radius:999px;background:#5596ff14;border:1px solid rgba(85,150,255,.14);width:fit-content}.detail-tabs button{border:0;border-radius:999px;background:transparent;color:#5b6f87;padding:9px 14px}.detail-tabs button.active{background:linear-gradient(135deg,#0dcaf0,#2a7fff);color:#fff;box-shadow:0 10px 24px #2a7fff3d}.detail-scroll{min-height:0;overflow:auto;padding-right:4px}.detail-section{padding-bottom:4px}.status-group button{background:#f5f9fff5;border:1px solid rgba(122,171,255,.12)}.detail-meta{margin:16px 0;justify-content:space-between}.detail-meta strong{display:block;margin-top:8px}.field-block{display:grid;gap:8px;margin-bottom:14px}.field-block textarea{min-height:92px;padding:14px;resize:vertical}.detail-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:4px}.primary-button{border:0;border-radius:18px;padding:13px 18px;background:linear-gradient(135deg,#09d0ff,#2d7dff);color:#fff;font-weight:700;box-shadow:0 12px 32px #127bff4d}.secondary-button{border:1px solid rgba(122,171,255,.18);border-radius:18px;padding:12px 16px;background:#f7fbfff5;color:#2256a8;font-weight:700}.secondary-button.compact{padding:9px 12px;border-radius:14px;font-weight:600}.secondary-button:disabled{opacity:.45;cursor:not-allowed}.card-section{margin-top:18px;padding-top:18px;border-top:1px solid rgba(122,171,255,.14)}.card-section-standalone{margin-top:0;padding-top:0;border-top:0}.card-header{display:flex;justify-content:space-between;gap:12px;align-items:center;margin-bottom:16px}.card-header-actions{display:flex;align-items:center;gap:10px}.card-header h3,.learning-card h4{margin:0}.learning-card{border-radius:20px;background:linear-gradient(180deg,#fffffffa,#f4fafffa);border:1px solid rgba(97,200,255,.14);padding:16px;box-shadow:inset 0 1px #ffffffe0,0 20px 40px #4778c11a}.card-topline{display:flex;align-items:flex-start;justify-content:space-between;gap:16px}.card-topline p{margin:6px 0 0;color:#617792;font-size:.96rem}.card-intro,.callout,.prompt-box{margin-top:16px;border-radius:18px;padding:14px 16px}.card-intro{background:linear-gradient(180deg,#f7fbfffa,#f2f8fffa);border:1px solid rgba(122,171,255,.1)}.card-intro p,.callout p,.prompt-box p,.empty-state p{margin:0;line-height:1.7;color:#425671}.card-intro-text{font-size:.98rem}.card-chip-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}.card-chip{display:inline-flex;align-items:center;min-height:34px;padding:7px 12px;border-radius:999px;border:1px solid rgba(90,152,255,.14);background:#ffffffeb;color:#2f5273;font-size:.88rem;font-weight:600}.callout{background:linear-gradient(180deg,#fff4f1fa,#fff9f7fa);border:1px solid rgba(255,136,120,.16)}.prompt-box{background:linear-gradient(180deg,#effcfafa,#f5fffdfa);border:1px solid rgba(63,231,221,.16)}.markdown-body{margin-top:16px;color:#30445e;line-height:1.8}.markdown-body h1,.markdown-body h2,.markdown-body h3{font-size:1.02rem;margin-top:18px}.markdown-body h2:first-child,.markdown-body h3:first-child{margin-top:0}.markdown-body ul{padding-left:20px}.markdown-body p,.markdown-body li{color:#36506c}.empty-state{border-radius:22px;background:linear-gradient(180deg,#fafcfffa,#f4f9fffa);padding:18px;color:#73879e;border:1px dashed rgba(122,171,255,.2)}.modal-backdrop{position:fixed;inset:0;background:#0916283d;-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);display:flex;align-items:center;justify-content:center;padding:18px;z-index:1000}.modal-shell{width:min(1400px,100%);max-height:min(92vh,980px);border-radius:28px;border:1px solid rgba(122,171,255,.18);background:linear-gradient(180deg,#fffffff5,#f6fbfffa);box-shadow:0 30px 80px #244e912e;display:flex;flex-direction:column;overflow:hidden}.modal-topbar{display:flex;justify-content:space-between;gap:16px;align-items:flex-start;padding:20px 22px 14px;border-bottom:1px solid rgba(122,171,255,.12)}.modal-topbar h2{margin:0;font-size:1.7rem;letter-spacing:-.04em}.modal-actions{display:flex;align-items:center;gap:10px}.modal-close{border:0;border-radius:14px;padding:9px 12px;background:#eef5fff5;color:#46607e}.modal-content{display:grid;grid-template-columns:minmax(280px,.72fr) minmax(0,1.28fr);gap:0;min-height:0;flex:1}.modal-side{padding:18px 20px 20px;border-right:1px solid rgba(122,171,255,.12);overflow:auto}.modal-card{padding:18px 20px 20px;overflow:auto}.learning-card-modal{min-height:100%}.practice-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-top:16px}@media(max-width:1100px){.dashboard-layout,.hero,.workspace-grid,.stats-grid{grid-template-columns:1fr}.side-rail{position:static}.hero-panel{grid-template-columns:repeat(3,1fr)}.hero h1,.hero-copy{max-width:none}.stats-grid-side{grid-template-columns:repeat(5,1fr)}.word-list{max-height:none;min-height:0}.detail-panel{position:static;max-height:none}.detail-scroll{overflow:visible}.modal-content{grid-template-columns:1fr}.modal-side{border-right:0;border-bottom:1px solid rgba(122,171,255,.12)}.practice-grid{grid-template-columns:1fr}}@media(max-width:720px){.app-shell{width:min(100% - 24px,100%);padding-top:14px}.stats-grid-side,.hero-panel{grid-template-columns:1fr}.toolbar{padding:14px}.panel{padding:16px}.alphabet-bar{gap:6px;padding:10px}.alphabet-bar button{min-width:30px;padding:6px 8px}.row-quick-actions{position:static;margin-bottom:10px;max-width:100%;opacity:1;transform:none;pointer-events:auto;justify-content:flex-start}.modal-backdrop{padding:10px}.modal-shell{max-height:96vh;border-radius:22px}.modal-topbar,.modal-actions{flex-wrap:wrap}}