:root{--paper:#f5efe4;--paper-deep:#ebe2d4;--surface:#fffaf2;--surface-strong:#fff;--ink:#1d2923;--muted:#6e756e;--line:#1d29231f;--forest:#24493c;--forest-dark:#183329;--coral:#e76f51;--coral-soft:#f8d9cd;--sun:#f3c969;--sage:#b8cabb;--blue:#4a7184;--danger:#a54436;--shadow:0 18px 48px #2c261d17;--radius-sm:14px;--radius-md:22px;--radius-lg:32px;--content:1120px}*{box-sizing:border-box}html{background:var(--paper);color:var(--ink);scroll-behavior:smooth}body{background:var(--paper);-webkit-font-smoothing:antialiased;min-height:100vh;margin:0;font-family:Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}button,input,textarea,select{font:inherit}button,a{-webkit-tap-highlight-color:transparent}a{color:inherit;text-decoration:none}button{color:inherit}::selection{background:var(--sun);color:var(--ink)}h1,h2,h3,p{margin-top:0}h1{letter-spacing:-.065em;font-size:clamp(2.3rem,5vw,4.8rem);font-weight:690;line-height:.98}h2{letter-spacing:-.045em;font-size:clamp(1.55rem,3vw,2.5rem);line-height:1.05}h3{letter-spacing:-.018em;font-size:1.05rem;line-height:1.25}.eyebrow{color:var(--coral);text-transform:uppercase;letter-spacing:.13em;font-size:.75rem;font-weight:760}.muted{color:var(--muted)}.meta{color:var(--muted);font-size:.78rem}.section-heading{justify-content:space-between;align-items:flex-end;gap:16px;margin-bottom:18px;display:flex}.section-heading h2{margin-bottom:0}.section-heading a{color:var(--forest);font-size:.88rem;font-weight:720}.button{cursor:pointer;border:0;border-radius:999px;justify-content:center;align-items:center;gap:9px;min-height:44px;padding:0 19px;font-weight:720;transition:transform .16s,background .16s,color .16s,box-shadow .16s;display:inline-flex}.button:active{transform:scale(.975)}.button:disabled{opacity:.55;cursor:wait}.button-primary{background:var(--forest);color:#fffaf1;box-shadow:0 8px 20px #24493c2e}.button-primary:hover{background:var(--forest-dark)}.button-secondary{background:var(--paper-deep);color:var(--ink)}.button-ghost{border:1px solid var(--line);background:0 0}.button-coral{background:var(--coral);color:#fff}.button-large{min-height:54px;padding-inline:24px}.full-width{width:100%}.icon-button{background:var(--paper-deep);cursor:pointer;border:0;border-radius:50%;place-items:center;width:44px;height:44px;display:inline-grid}.icon-button.active{background:var(--coral-soft);color:var(--danger)}.logo{letter-spacing:-.05em;align-items:center;gap:10px;font-size:1.4rem;font-weight:780;display:inline-flex}.logo-mark{background:var(--forest);color:#fffaf1;letter-spacing:-.08em;border-radius:12px;place-items:center;width:38px;height:38px;font-size:1.16rem;display:grid}.app-shell{min-height:100vh}.desktop-sidebar{display:none}.page-shell{min-height:100vh;padding:28px 20px calc(112px + env(safe-area-inset-bottom))}.page-content{width:min(100%, var(--content));margin-inline:auto}.page-header{justify-content:space-between;align-items:center;gap:18px;margin-bottom:28px;display:flex}.page-header h1{margin-bottom:7px;font-size:clamp(2.1rem,7vw,3.7rem)}.page-header p{color:var(--muted);margin-bottom:0}.bottom-nav{z-index:30;left:10px;right:10px;bottom:calc(10px + env(safe-area-inset-bottom));-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);background:#fffaf2f0;border:1px solid #1d29231a;border-radius:22px;grid-template-columns:repeat(5,1fr);align-items:center;height:66px;padding:5px;display:grid;position:fixed;box-shadow:0 10px 34px #1d292329}.bottom-nav a{height:55px;color:var(--muted);border-radius:17px;flex-direction:column;justify-content:center;align-items:center;gap:3px;font-size:.65rem;font-weight:680;display:flex}.bottom-nav a.active{background:var(--paper-deep);color:var(--forest)}.floating-add{z-index:35;right:21px;bottom:calc(91px + env(safe-area-inset-bottom));color:#fff;background:var(--coral);border-radius:50%;place-items:center;width:58px;height:58px;display:grid;position:fixed;box-shadow:0 12px 28px #b7452c4d}.app-shell:has(.selection-bar) .floating-add{display:none}.login-page{background:var(--forest);place-items:center;min-height:100svh;padding:24px;display:grid;position:relative;overflow:hidden}.login-ambient{color:#ffffff12;letter-spacing:-.08em;font-size:clamp(5rem,15vw,14rem);font-weight:740;position:absolute;inset:0}.login-ambient span{white-space:nowrap;position:absolute}.login-ambient span:first-child{top:-4%;left:-3%;transform:rotate(-6deg)}.login-ambient span:nth-child(2){top:40%;right:-15%;transform:rotate(8deg)}.login-ambient span:nth-child(3){bottom:-7%;left:4%;transform:rotate(-3deg)}.login-card{z-index:1;background:var(--surface);border-radius:30px;width:min(100%,480px);padding:30px;position:relative;box-shadow:0 30px 90px #07151059}.login-copy{padding-block:48px 28px}.login-copy h1{margin-bottom:20px;font-size:clamp(2.6rem,10vw,4.5rem)}.login-copy>p:last-child{color:var(--muted);font-size:1.05rem;line-height:1.6}.login-form{gap:15px;display:grid}.login-form label,.field-label{color:var(--muted);gap:7px;font-size:.78rem;font-weight:750;display:grid}.login-form input,.text-input,.select-input,.textarea-input{width:100%;min-height:52px;color:var(--ink);border:1px solid var(--line);border-radius:var(--radius-sm);background:#fff;outline:0;padding:13px 15px;transition:border .15s,box-shadow .15s}.login-form input:focus,.text-input:focus,.select-input:focus,.textarea-input:focus{border-color:var(--forest);box-shadow:0 0 0 3px #24493c1c}.textarea-input{resize:vertical;min-height:126px;line-height:1.5}.form-error{color:var(--danger);margin:0;font-size:.85rem}.hero-grid{gap:16px;margin-bottom:42px;display:grid}.continue-card{border-radius:var(--radius-lg);background:var(--forest);color:#fffaf1;min-height:340px;box-shadow:var(--shadow);flex-direction:column;justify-content:space-between;padding:28px;display:flex;position:relative;overflow:hidden}.continue-card:after{content:"";border:55px solid #f3c9692e;border-radius:50%;width:260px;height:260px;position:absolute;bottom:-110px;right:-100px}.continue-card .eyebrow{color:var(--sun)}.continue-card h2{max-width:620px;margin-bottom:8px;font-size:clamp(2.25rem,7vw,4rem)}.continue-card p{color:#fffaf1b3}.continue-bottom{z-index:1;justify-content:space-between;align-items:center;gap:18px;display:flex;position:relative}.play-main{background:var(--coral);color:#fff;border:0;border-radius:50%;flex:none;place-items:center;width:78px;height:78px;display:grid;box-shadow:0 14px 28px #0000002e}.waveform{flex:1;align-items:center;gap:4px;max-width:340px;height:42px;display:flex}.waveform i{background:#fffaf16b;border-radius:99px;width:4px;display:block}.waveform i:nth-child(4n+1){height:34%}.waveform i:nth-child(4n+2){height:80%}.waveform i:nth-child(4n+3){height:52%}.waveform i:nth-child(4n){height:100%}.progress-card{border-radius:var(--radius-lg);background:var(--sun);flex-direction:column;justify-content:space-between;min-height:190px;padding:24px;display:flex}.progress-card h3{margin-bottom:5px;font-size:1.35rem}.progress-ring{background:conic-gradient(var(--forest) var(--progress,0%), #ffffff73 0);border-radius:50%;place-items:center;width:86px;height:86px;display:grid;position:relative}.progress-ring:before{content:"";background:var(--sun);border-radius:50%;position:absolute;inset:9px}.progress-ring strong{font-size:1.15rem;position:relative}.progress-card-bottom{justify-content:space-between;align-items:flex-end;gap:15px;display:flex}.quick-grid{grid-template-columns:1fr 1fr;gap:12px;margin-bottom:42px;display:grid}.quick-card{border-radius:var(--radius-md);background:var(--surface);border:1px solid var(--line);flex-direction:column;justify-content:space-between;min-height:128px;padding:18px;display:flex}.quick-card>span:first-child{background:var(--coral-soft);width:40px;height:40px;color:var(--danger);border-radius:13px;place-items:center;display:grid}.quick-card:nth-child(2)>span:first-child{color:var(--forest);background:#dbe7df}.quick-card strong{font-size:1rem}.quick-card small{color:var(--muted);margin-top:3px;display:block}.lesson-list{gap:10px;display:grid}.lesson-row{background:var(--surface);border:1px solid var(--line);border-radius:19px;grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:13px;padding:13px;display:grid}.lesson-row-main{grid-template-columns:auto minmax(0,1fr);align-items:center;gap:13px;min-width:0;display:grid}.lesson-copy{min-width:0}.lesson-art{background:var(--sage);width:56px;height:56px;color:var(--forest);border-radius:16px;place-items:center;display:grid}.lesson-row:nth-child(3n+2) .lesson-art{background:var(--coral-soft);color:var(--danger)}.lesson-row h3{text-overflow:ellipsis;white-space:nowrap;margin-bottom:5px;overflow:hidden}.lesson-row p{color:var(--muted);margin:0;font-size:.78rem}.status-pill{background:var(--paper-deep);width:fit-content;color:var(--muted);text-transform:uppercase;letter-spacing:.05em;border-radius:999px;align-items:center;gap:5px;padding:5px 9px;font-size:.68rem;font-weight:760;display:inline-flex}.status-pill.ready{color:var(--forest);background:#dcebe0}.status-pill.failed{background:var(--coral-soft);color:var(--danger)}.lesson-row-actions{align-items:center;gap:8px;display:flex}.lesson-play,.lesson-delete{width:38px;height:38px;color:var(--forest);border-radius:50%;place-items:center;display:grid}.lesson-delete{cursor:pointer;color:var(--muted);background:0 0;border:0;transition:color .15s,background .15s}.lesson-delete:hover{color:var(--danger);background:var(--coral-soft)}.lesson-delete:disabled{cursor:not-allowed;opacity:.38}.lesson-error{color:var(--danger);margin-top:5px;font-size:.7rem;display:block}.category-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;display:grid}.category-card{border-radius:var(--radius-md);background:var(--surface);border:1px solid var(--line);flex-direction:column;justify-content:space-between;min-height:174px;padding:20px;transition:transform .17s,box-shadow .17s;display:flex}.category-card:hover{box-shadow:var(--shadow);transform:translateY(-2px)}.category-card:nth-child(4n+1){background:var(--forest);color:#fffaf1}.category-card:nth-child(4n+2){background:var(--sun)}.category-card:nth-child(4n+3){background:#dbe7df}.category-card:nth-child(4n){background:var(--coral-soft)}.category-card .category-icon{background:#ffffff7a;border-radius:14px;place-items:center;width:42px;height:42px;display:grid}.category-card h3{margin:0;font-size:1.13rem}.category-card p{opacity:.66;margin:6px 0 0;font-size:.78rem;line-height:1.35}.words-lesson-card{border-radius:var(--radius-lg);background:var(--forest);color:#fffaf1;box-shadow:var(--shadow);gap:20px;margin-bottom:28px;padding:24px;display:grid;position:relative;overflow:hidden}.words-lesson-card:after{content:attr(data-word-count);color:#ffffff0e;letter-spacing:-.09em;pointer-events:none;font-size:10rem;font-weight:780;position:absolute;bottom:-45px;right:-14px}.words-lesson-mark{z-index:1;background:var(--sun);width:58px;height:58px;color:var(--forest);border-radius:18px;place-items:center;display:grid;position:relative}.words-lesson-copy{z-index:1;position:relative}.words-lesson-copy .eyebrow{color:var(--sun);margin-bottom:9px}.words-lesson-copy h2{max-width:560px;margin-bottom:9px;font-size:clamp(2rem,6vw,3.45rem)}.words-lesson-copy>p{color:#fffaf1b3;max-width:680px;margin-bottom:17px;line-height:1.55}.words-rhythm{flex-wrap:wrap;gap:8px;display:flex}.words-rhythm span{color:#fffaf1c7;border:1px solid #ffffff24;border-radius:999px;align-items:center;gap:6px;min-height:32px;padding:0 11px;font-size:.72rem;font-weight:680;display:inline-flex}.words-lesson-card>.button{z-index:1;width:fit-content;position:relative}.words-lesson-error{z-index:1;color:#ffd9d0;position:relative}.words-toolbar{margin-top:6px}.visibility-label{color:var(--muted);align-items:center;gap:6px;font-size:.74rem;font-weight:700;display:inline-flex}.word-list{gap:10px;display:grid}.word-card{border:1px solid var(--line);border-radius:var(--radius-md);background:var(--surface);grid-template-columns:36px minmax(0,1fr) auto;align-items:start;gap:13px;padding:18px;display:grid}.word-rank{background:var(--paper-deep);width:32px;height:32px;color:var(--muted);border-radius:10px;place-items:center;font-size:.7rem;font-weight:760;display:grid}.word-main{min-width:0}.word-spanish{flex-wrap:wrap;align-items:baseline;gap:9px;display:flex}.word-spanish strong{letter-spacing:-.025em;font-size:1.35rem}.word-spanish span{color:var(--blue);font-size:.72rem;font-weight:670}.word-english{color:var(--muted);margin:4px 0 13px;font-size:.9rem;font-weight:620}.word-key-form{border-left:3px solid var(--coral);background:var(--coral-soft);border-radius:0 13px 13px 0;grid-template-columns:auto minmax(0,1fr);align-items:baseline;gap:2px 10px;margin:0 0 12px;padding:10px 12px;display:grid}.word-key-form>span{color:var(--danger);letter-spacing:.1em;text-transform:uppercase;grid-column:1/-1;font-size:.58rem;font-weight:780}.word-key-form strong{letter-spacing:-.02em;font-size:1.08rem}.word-key-form p{color:var(--muted);margin:0;font-size:.8rem;font-weight:650}.word-example{background:#ebe2d49e;border-radius:15px;padding:12px 14px}.word-example>span{color:var(--muted);letter-spacing:.1em;text-transform:uppercase;margin-bottom:7px;font-size:.6rem;font-weight:780;display:block}.word-example p{margin:0;font-size:.82rem;line-height:1.45}.word-example p+p{color:var(--muted);margin-top:4px}.word-card .sentence-actions{margin-top:-4px}.word-card .sentence-actions .icon-button{background:0 0;width:37px;height:37px}.word-card .sentence-actions .icon-button.active{background:var(--coral-soft)}.pattern-grid{gap:12px;display:grid}.pattern-card{border-radius:var(--radius-md);background:var(--surface);border:1px solid var(--line);justify-content:space-between;align-items:center;gap:18px;padding:22px;display:flex}.pattern-card h3{margin-bottom:5px;font-size:1.25rem}.pattern-card p{color:var(--muted);margin:0;font-size:.82rem}.pattern-count{background:var(--paper-deep);border-radius:50%;flex:none;place-items:center;width:48px;height:48px;font-weight:750;display:grid}.toolbar{flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:18px;display:flex}.search-box{flex:230px;position:relative}.search-box svg{color:var(--muted);position:absolute;top:50%;left:15px;transform:translateY(-50%)}.search-box input{padding-left:44px}.filter-chip{border:1px solid var(--line);background:var(--surface);cursor:pointer;border-radius:999px;min-height:42px;padding:0 15px;font-size:.82rem;font-weight:690}.filter-chip.active{background:var(--forest);border-color:var(--forest);color:#fff}.filter-chip:disabled{cursor:not-allowed;opacity:.45}.sentence-list{gap:10px;display:grid}.sentence-card{border-radius:var(--radius-md);background:var(--surface);border:1px solid var(--line);padding:18px}.sentence-card.selected{border-color:var(--forest);box-shadow:inset 0 0 0 1px var(--forest)}.sentence-top{grid-template-columns:auto minmax(0,1fr) auto;align-items:start;gap:12px;display:grid}.sentence-select{width:25px;height:25px;accent-color:var(--forest);margin-top:3px}.sentence-text .spanish{margin-bottom:5px;font-size:1.08rem;font-weight:690;line-height:1.45}.sentence-text .english{color:var(--muted);margin-bottom:0;font-size:.9rem;line-height:1.45}.sentence-actions{gap:5px;display:flex}.sentence-actions .icon-button{background:0 0;width:38px;height:38px}.sentence-tags{flex-wrap:wrap;gap:6px;padding:14px 0 0 37px;display:flex}.tag{background:var(--paper-deep);color:var(--muted);border-radius:999px;padding:5px 9px;font-size:.68rem;font-weight:680}.selection-bar{z-index:8;background:var(--ink);color:#fff;border-radius:999px;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;width:min(100%,650px);margin:16px auto 0;padding:10px 12px 10px 18px;display:flex;position:sticky;bottom:82px;box-shadow:0 16px 36px #1d292340}.selection-bar strong{font-size:.86rem}.collection-picker{position:relative}.collection-trigger{min-height:42px;color:var(--ink);cursor:pointer;background:#fffaf1;border:0;border-radius:999px;align-items:center;gap:7px;padding:0 15px;font-size:.8rem;font-weight:730;display:inline-flex}.collection-trigger svg:last-child{color:var(--muted);margin-left:2px}.collection-popover{z-index:20;border:1px solid var(--line);background:var(--surface);width:min(350px,100vw - 36px);color:var(--ink);border-radius:22px;padding:18px;position:absolute;bottom:calc(100% + 13px);left:50%;transform:translate(-50%);box-shadow:0 22px 60px #12221b3d}.collection-popover:after{content:"";background:var(--surface);border-right:1px solid var(--line);border-bottom:1px solid var(--line);width:14px;height:14px;position:absolute;bottom:-7px;left:50%;transform:translate(-50%)rotate(45deg)}.collection-popover-header{justify-content:space-between;align-items:flex-start;gap:12px;margin-bottom:12px;display:flex}.collection-popover-header .eyebrow{margin-bottom:5px;font-size:.62rem}.collection-popover-header h3{margin-bottom:0;font-size:1.18rem}.collection-popover-header .icon-button{width:35px;height:35px}.collection-options{gap:6px;max-height:162px;margin-bottom:14px;display:grid;overflow-y:auto}.collection-option{border:1px solid var(--line);width:100%;min-height:43px;color:var(--ink);cursor:pointer;text-align:left;background:#fff;border-radius:13px;justify-content:space-between;align-items:center;gap:10px;padding:0 13px;font-size:.84rem;font-weight:680;display:flex}.collection-option:hover{border-color:var(--sage);background:#f7faf7}.collection-create{border-top:1px solid var(--line);padding-top:13px}.collection-create label{color:var(--muted);margin-bottom:8px;font-size:.7rem;font-weight:730;display:block}.collection-create>div{grid-template-columns:minmax(0,1fr) auto;gap:7px;display:grid}.collection-create .text-input{min-height:43px;padding-block:9px}.collection-create .button{white-space:nowrap;min-height:43px;padding-inline:13px;font-size:.75rem}.collection-create .form-error{margin-top:8px;font-size:.72rem}.collection-manage{color:var(--forest);text-align:center;margin-top:13px;font-size:.73rem;font-weight:720;display:block}.add-flow{max-width:760px;margin-inline:auto}.stepper{gap:8px;margin-bottom:32px;display:flex}.stepper i{background:var(--paper-deep);border-radius:99px;flex:1;height:4px}.stepper i.active{background:var(--coral)}.add-panel{border-radius:var(--radius-lg);background:var(--surface);border:1px solid var(--line);padding:24px}.add-panel h2{margin-bottom:10px;font-size:clamp(1.8rem,7vw,3rem)}.add-panel>p{color:var(--muted);line-height:1.55}.add-panel form{gap:16px;margin-top:24px;display:grid}.proposal-grid{gap:15px;display:grid}.proposal-translation{background:#dfe9e1;border-radius:18px;padding:18px}.proposal-translation label{color:var(--forest)}.proposal-translation textarea{background:#ffffffb3;font-size:1.25rem;font-weight:650}.confidence{background:var(--paper-deep);border-radius:999px;height:8px;overflow:hidden}.confidence span{background:var(--forest);border-radius:inherit;height:100%;display:block}.notice{color:#6b4b10;background:#fff0d0;border-radius:15px;padding:14px 16px;font-size:.83rem;line-height:1.45}.empty-state{border-radius:var(--radius-lg);text-align:center;border:1px dashed #1d292333;place-items:center;min-height:260px;padding:30px;display:grid}.empty-state>div{max-width:410px}.empty-state h2{font-size:1.7rem}.empty-state p{color:var(--muted);line-height:1.5}.settings-grid{gap:16px;display:grid}.settings-card{border-radius:var(--radius-md);background:var(--surface);border:1px solid var(--line);padding:22px}.settings-card h2{margin-bottom:18px;font-size:1.25rem}.settings-fields{gap:15px;display:grid}.range-row{grid-template-columns:1fr auto;align-items:center;gap:10px;display:grid}.range-row 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