:root{--bg: #f5f8f5;--surface: #ffffff;--ink: #16201a;--muted: #5a6b61;--accent: #17924f;--accent-deep: #0f6b39;--accent-soft: #e4f3ea;--accent-tint: #eef7f1;--gold: #c9842a;--gold-soft: #f8efdd;--border: #e1e8e3;--ok: #1c7a4d;--err: #b23a3a;--hero-glow: rgba(23, 146, 79, .12);--btn-shadow: rgba(23, 146, 79, .22);--header-bg: rgba(245, 248, 245, .88);--radius: 10px;font-family:Inter,system-ui,-apple-system,sans-serif;font-variant-numeric:tabular-nums}:root[data-theme=dark]{--bg: #0b100d;--surface: #141b16;--ink: #eef3ef;--muted: #94a39a;--accent: #54b06e;--accent-deep: #74c78a;--accent-soft: rgba(84, 176, 110, .16);--accent-tint: rgba(84, 176, 110, .1);--gold: #e0a23a;--gold-soft: rgba(224, 162, 58, .16);--border: #26302a;--ok: #4cc183;--err: #e3675f;--hero-glow: rgba(84, 176, 110, .22);--btn-shadow: rgba(84, 176, 110, .28);--header-bg: rgba(11, 16, 13, .85)}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink)}.app{max-width:900px;margin:0 auto;padding:24px}.app__header{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:24px}.tagline{color:var(--muted);margin:4px 0 0}.lang-switch button{border:1px solid var(--border);background:var(--surface);padding:6px 10px;border-radius:8px;cursor:pointer;margin-left:6px}.lang-switch button[aria-pressed=true]{border-color:var(--accent);color:var(--accent);font-weight:600}.app__main{display:grid;gap:24px}.calculator,.problem{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:20px}.subtitle{color:var(--muted);margin-top:0}.calculator__form{display:grid;gap:12px;max-width:360px}label{display:grid;gap:4px;font-size:14px;color:var(--muted)}input,select{padding:8px 10px;border:1px solid var(--border);border-radius:8px;font:inherit;color:var(--ink);background:var(--surface)}button[type=submit],.problem__feedback button{justify-self:start;background:var(--accent);color:#fff;border:none;padding:9px 16px;border-radius:8px;cursor:pointer}.calculator__result,.problem__feedback{margin-top:16px}.calculator__error{color:var(--err)}.solution-steps{color:var(--ink);line-height:1.7;padding-left:20px}.is-correct{color:var(--ok);font-weight:600}.is-incorrect{color:var(--err);font-weight:600}.layout{min-height:100vh;display:flex;flex-direction:column}.layout__header{position:sticky;top:0;z-index:10;display:flex;align-items:center;gap:20px;padding:12px 24px;background:var(--header-bg);-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);border-bottom:1px solid var(--border)}.brand{font-size:19px;font-weight:600;color:var(--ink);text-decoration:none;letter-spacing:-.01em}.layout__nav{display:flex;gap:16px}.layout__nav a{color:var(--muted);text-decoration:none;font-size:14px;padding:4px 2px}.layout__nav a.active,.layout__nav a:hover{color:var(--accent)}.layout__right{margin-left:auto}.theme-toggle{display:inline-flex;align-items:center;justify-content:center;width:32px;height:30px;background:transparent;border:1px solid var(--border);border-radius:8px;color:var(--muted);cursor:pointer}.theme-toggle:hover{color:var(--accent);border-color:var(--accent)}.layout__main{flex:1;width:100%;max-width:960px;margin:0 auto;padding:28px 24px 48px}.layout__footer{border-top:1px solid var(--border);color:var(--muted);font-size:13px;padding:18px 24px;text-align:center}.page-head{margin-bottom:18px}.page-head h1{font-size:24px;font-weight:600;margin:0}.catalog__search{display:flex;align-items:center;gap:8px;max-width:360px;border:1px solid var(--border);border-radius:10px;background:var(--surface);padding:0 12px;color:var(--muted);margin-bottom:8px}.catalog__search input{border:none;background:transparent;padding:9px 0;flex:1}.catalog__group{margin-top:26px}.catalog__group-title{font-size:13px;font-weight:600;letter-spacing:.04em;text-transform:uppercase;color:var(--muted);margin:0 0 12px}.catalog__grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(190px,1fr));gap:12px}.topic-card{position:relative;display:flex;flex-direction:column;gap:4px;background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:16px;text-decoration:none;color:var(--ink);transition:border-color .12s,transform .12s}.topic-card:hover{border-color:var(--accent);transform:translateY(-1px)}.topic-card__icon{color:var(--accent);margin-bottom:6px}.topic-card__title{font-size:15px;font-weight:500;padding-right:22px}.topic-card__tagline{font-size:12.5px;color:var(--muted)}.catalog__group--fav .topic-card{border-color:var(--accent);background:linear-gradient(180deg,var(--accent-tint) 0%,var(--surface) 70%)}.fav-btn{display:inline-flex;align-items:center;justify-content:center;background:transparent;border:none;cursor:pointer;padding:2px;color:var(--muted);border-radius:6px;line-height:0}.fav-btn:hover,.fav-btn.is-fav{color:var(--gold)}.topic-card__fav{position:absolute;top:10px;right:10px}.module__fav{margin-left:auto}.breadcrumb{display:flex;align-items:center;gap:6px;font-size:13px;color:var(--muted);margin-bottom:14px}.breadcrumb a{color:var(--muted);text-decoration:none}.breadcrumb a:hover{color:var(--accent)}.breadcrumb__current{color:var(--ink)}.module>.calculator{margin-top:14px}.module__practice{margin-top:18px}.module__practice-title{display:flex;align-items:center;gap:6px;font-size:16px;font-weight:600;margin:0 0 8px}.explain{border:1px solid var(--border);border-radius:12px;overflow:hidden;background:var(--surface)}.explain__head{width:100%;display:flex;align-items:center;justify-content:space-between;background:var(--accent-tint);border:none;padding:11px 14px;cursor:pointer;font:inherit}.explain__title{display:flex;align-items:center;gap:7px;font-size:14px;font-weight:500;color:var(--ink)}.explain__toggle{display:flex;align-items:center;gap:5px;font-size:13px;color:var(--accent)}.explain__toggle .is-open{transform:rotate(180deg)}.explain__body{padding:12px 14px;border-top:1px solid var(--border)}.explain__body p{margin:0;font-size:14px;line-height:1.65;color:var(--ink)}.explain__hint{margin-top:8px!important;font-size:12px;color:var(--muted)}.practice{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:16px 18px}.practice__prompt{font-size:15px;line-height:1.55;margin:0 0 12px}.practice__form{display:flex;align-items:flex-end;gap:10px;flex-wrap:wrap}.practice__form label{flex:1;min-width:160px}.practice__form button[type=submit]{background:var(--accent);color:#fff;border:none;padding:9px 16px;border-radius:8px;cursor:pointer}.practice__feedback{margin-top:14px}button.ghost{display:inline-flex;align-items:center;gap:6px;margin-top:12px;background:transparent;border:1px solid var(--border);color:var(--ink);padding:8px 13px;border-radius:8px;cursor:pointer}.practice__ask{font-size:13.5px;color:var(--ink);margin:0 0 10px}.practice__hint{margin:0 0 12px}.practice__hint-toggle{display:inline-flex;align-items:center;gap:6px;background:transparent;border:none;color:var(--accent);font-size:13.5px;font-weight:600;cursor:pointer;padding:0}.practice__hint-body{margin:8px 0 0;padding:10px 12px;background:var(--accent-soft);border-radius:8px;font-size:14px;line-height:1.6;color:var(--ink)}.practice__answerline{margin:6px 0 10px;font-size:14.5px;line-height:1.6}.practice__answerline strong{color:var(--accent)}.practice__muted{color:var(--muted);font-size:13px}.practice__feedback details{margin-top:8px}.practice__feedback summary{cursor:pointer;font-weight:600;font-size:14px;color:var(--accent)}.practice__feedback .is-correct{font-weight:600}.practice__feedback .is-incorrect{font-weight:600;margin-bottom:2px}.landing{display:flex;flex-direction:column;gap:48px}.hero{text-align:center;padding:56px 20px 36px;border-radius:22px;background:radial-gradient(760px 420px at 50% 8%,var(--hero-glow) 0%,transparent 62%),var(--surface);border:1px solid var(--border)}.hero__badge{display:inline-flex;align-items:center;gap:6px;font-size:12.5px;font-weight:600;color:var(--accent-deep);background:var(--accent-soft);border-radius:999px;padding:5px 13px;margin-bottom:16px}.hero__title{font-size:38px;line-height:1.14;font-weight:700;letter-spacing:-.02em;margin:0}.hero__accent{color:var(--accent)}.hero__tagline{font-size:18px;color:var(--ink);margin:14px auto 0;font-weight:600}.hero__subtitle{max-width:560px;margin:10px auto 0;color:var(--muted);font-size:16px;line-height:1.6}.hero__cta{display:flex;gap:10px;justify-content:center;margin-top:24px;flex-wrap:wrap}.btn{display:inline-flex;align-items:center;gap:7px;padding:11px 18px;border-radius:10px;font-size:15px;font-weight:500;text-decoration:none;cursor:pointer;transition:transform .15s,box-shadow .15s}.btn--primary{background:var(--accent);color:#fff;box-shadow:0 8px 20px var(--btn-shadow)}.btn--primary:hover{transform:translateY(-1px);box-shadow:0 10px 28px var(--btn-shadow)}.btn--ghost{background:var(--surface);color:var(--ink);border:1px solid var(--border)}.btn--ghost:hover{border-color:var(--accent);color:var(--accent)}.features{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px}.feature{background:var(--surface);border:1px solid var(--border);border-radius:14px;padding:20px;transition:transform .15s,box-shadow .15s,border-color .15s}.feature:hover{transform:translateY(-2px);box-shadow:0 10px 26px #14282d14}.feature__icon{display:inline-flex;align-items:center;justify-content:center;width:42px;height:42px;border-radius:12px;background:var(--accent-soft);color:var(--accent)}.feature h3{font-size:16px;font-weight:600;margin:12px 0 4px}.feature p{margin:0;color:var(--muted);font-size:14px;line-height:1.55}.landing__modules{text-align:center}.landing__modules h2{font-size:22px;font-weight:600;margin:0}.landing__chips{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;margin-top:16px}.mod-chip{display:inline-flex;align-items:center;gap:6px;padding:7px 12px;border:1px solid var(--border);border-radius:999px;background:var(--surface);color:var(--ink);text-decoration:none;font-size:13px;transition:all .14s}.mod-chip svg{color:var(--accent)}.mod-chip:hover{border-color:var(--accent);color:var(--accent);background:var(--accent-tint)}.tiers{text-align:center}.tiers h2{font-size:22px;font-weight:600;margin:0}.tiers__trial{display:inline-block;color:var(--accent-deep);background:var(--accent-soft);font-size:13.5px;font-weight:500;padding:6px 14px;border-radius:999px;margin:10px 0 20px}.tiers__grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px;text-align:left;align-items:start}.tier{position:relative;background:var(--surface);border:1px solid var(--border);border-radius:14px;padding:22px}.tier--pro{border:2px solid var(--accent);background:linear-gradient(180deg,var(--accent-tint) 0%,var(--surface) 60%);box-shadow:0 16px 40px var(--btn-shadow)}.tier__badge{position:absolute;top:-12px;right:18px;display:inline-flex;align-items:center;gap:5px;background:var(--gold);color:#fff;font-size:12px;font-weight:700;padding:4px 12px;border-radius:999px;box-shadow:0 4px 12px #c9842a59}.tier h3{margin:0 0 6px;font-size:18px;font-weight:700}.tier--pro h3{color:var(--accent-deep)}.tier p{margin:0;color:var(--muted);font-size:14px;line-height:1.6}.layout__right{display:flex;align-items:center;gap:12px}.auth__signin{font-size:13px;color:var(--accent);text-decoration:none;border:1px solid var(--border);border-radius:999px;padding:5px 12px}.auth__signin:hover{border-color:var(--accent)}.auth__user{display:flex;align-items:center;gap:8px}.auth__chip{font-size:12px;padding:3px 10px;border-radius:999px;background:var(--accent-soft);color:var(--accent)}.auth__signout{display:inline-flex;background:transparent;border:1px solid var(--border);color:var(--muted);border-radius:8px;padding:5px 8px;cursor:pointer}.auth__signout:hover{color:var(--err);border-color:var(--err)}.login{max-width:420px;margin:24px auto;text-align:center}.login h1{font-size:24px;font-weight:600;margin:0 0 6px}.login__card{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:22px;margin-top:18px;display:flex;flex-direction:column;gap:14px}.login__google{justify-content:center}.login__or{color:var(--muted);font-size:13px}.login__email{display:flex;flex-direction:column;gap:10px;text-align:left}.login__email button{justify-content:center}.practice--gate{text-align:center;display:flex;flex-direction:column;align-items:center;gap:12px}.practice--gate p{margin:0;color:var(--muted)}.module__standard{font-size:12.5px;color:var(--muted);margin:-6px 0 14px}.explain__body ul,.explain__body ol{margin:6px 0;padding-left:20px}.explain__body li{font-size:14px;line-height:1.6;color:var(--ink)}.worked__deepdive{display:inline-flex;align-items:center;gap:7px;margin-top:14px;font-size:13.5px;font-weight:600;color:var(--accent);text-decoration:none;border:1px solid var(--accent);border-radius:999px;padding:7px 14px}.worked__deepdive:hover{background:var(--accent-soft)}.academy{max-width:760px}.academy__kicker{display:inline-flex;align-items:center;gap:6px;font-size:12.5px;font-weight:600;color:var(--accent);margin:0 0 4px}.academy__title{font-size:26px;font-weight:700;margin:0 0 10px;line-height:1.25}.academy__lead{font-size:16px;line-height:1.7;color:var(--ink);margin:0 0 8px}.academy__section{margin-top:22px}.academy__section h2{font-size:18px;font-weight:600;margin:0 0 8px}.academy__section p{font-size:15px;line-height:1.75;color:var(--ink);margin:0 0 8px}.academy__section ul{margin:6px 0;padding-left:20px}.academy__section li{font-size:15px;line-height:1.7}.academy__example{border:1px solid var(--border);border-radius:10px;padding:12px 14px;margin-bottom:12px;background:var(--surface)}.academy__example h3{font-size:15px;font-weight:600;margin:0 0 6px}.academy__summary{background:var(--accent-soft);border-radius:12px;padding:14px 16px}.academy__summary h2{margin-top:0}.academy__actions{display:flex;align-items:center;gap:16px;margin-top:26px;flex-wrap:wrap}.academy .button{display:inline-flex;align-items:center;gap:7px;background:var(--accent);color:#fff;text-decoration:none;border-radius:8px;padding:9px 16px;font-size:14px;font-weight:500}.academy__back{color:var(--muted);text-decoration:none;font-size:13.5px}.academy__back:hover{color:var(--accent)}.academy .button{border:none;cursor:pointer}.academy__widget{border:1px solid var(--border);border-radius:12px;padding:14px 16px;background:var(--surface);margin:10px 0}.academy__widget .aw__head{display:flex;justify-content:space-between;align-items:baseline;margin-bottom:8px}.academy__widget .aw__label{font-size:14px;color:var(--muted)}.academy__widget .aw__value{font-size:19px;font-weight:600;color:var(--accent)}.academy__widget .aw__slider{width:100%;accent-color:var(--accent)}.academy__widget .aw__note{font-size:12.5px;color:var(--muted);margin:8px 0 14px}.academy__widget .aw__cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:10px;margin-bottom:14px}.academy__widget .aw__card{background:var(--accent-tint);border-radius:8px;padding:10px 12px}.academy__widget .aw__card span{display:block;font-size:12.5px;color:var(--muted);margin-bottom:2px}.academy__widget .aw__card strong{font-size:18px;font-weight:600;color:var(--ink)}.academy__widget .aw__card--ok{background:var(--accent-soft)}.academy__widget .aw__card--ok strong{font-size:13.5px;font-weight:500;color:var(--accent-deep)}.academy__widget .aw__viz{display:grid;grid-template-columns:1fr 1fr;gap:14px;align-items:end}.academy__widget .aw__viz--single{grid-template-columns:1fr;max-width:340px;margin:0 auto}@media (max-width: 560px){.academy__widget .aw__viz{grid-template-columns:1fr}}.academy__widget .aw__propline{text-align:center;margin-bottom:12px}.academy__widget .aw__prop{font-size:20px;letter-spacing:.5px;color:var(--ink)}.academy__widget .aw__prop strong{color:var(--accent)}.academy__widget .aw__inputs{display:flex;gap:14px;margin-bottom:12px}.academy__widget .aw__num{display:flex;align-items:center;gap:6px;font-size:14px;color:var(--muted)}.academy__widget .aw__num input{width:64px;padding:6px 8px;border:1px solid var(--border);border-radius:6px;background:var(--surface);color:var(--ink)}.academy__notation{width:100%;border-collapse:collapse;font-size:14.5px}.academy__notation th,.academy__notation td{text-align:left;padding:7px 10px;border-bottom:1px solid var(--border);vertical-align:top}.academy__notation thead th{font-weight:600;color:var(--muted);font-size:12.5px;text-transform:uppercase;letter-spacing:.03em}.academy__notation td:first-child{font-weight:600;white-space:nowrap}.academy__selfcheck{border:1px solid var(--border);border-radius:10px;padding:10px 14px;margin-bottom:10px;background:var(--surface)}.academy__selfcheck summary{cursor:pointer;font-weight:600;font-size:14.5px;list-style:none}.academy__selfcheck summary::-webkit-details-marker{display:none}.academy__selfcheck summary:before{content:"?";color:var(--accent);font-weight:700;margin-right:8px}.academy__selfcheck[open] summary{margin-bottom:8px}.academy__selfcheck p{font-size:14.5px;line-height:1.7;color:var(--ink);margin:0}.academy__refs ol{padding-left:22px;margin:6px 0}.academy__refs li{font-size:13.5px;line-height:1.65;color:var(--ink);margin-bottom:8px}.academy__refs a{color:var(--accent);text-decoration:none;word-break:break-word}.academy__refs a:hover{text-decoration:underline}.academy__refs-note{font-size:12px;color:var(--muted);font-style:italic;margin-top:6px}.modal__backdrop{position:fixed;top:0;right:0;bottom:0;left:0;z-index:100;overflow-y:auto;background:#0f171780;display:flex;align-items:flex-start;justify-content:center;padding:6vh 16px}.modal{background:var(--surface);border:1px solid var(--border);border-radius:14px;width:100%;max-width:560px;outline:none;box-shadow:0 20px 50px #00000040}.modal__head{display:flex;align-items:center;justify-content:space-between;padding:14px 18px;border-bottom:1px solid var(--border)}.modal__title{margin:0;font-size:16px;font-weight:600;color:var(--ink)}.modal__close{display:inline-flex;background:transparent;border:none;cursor:pointer;color:var(--muted);padding:4px;border-radius:6px}.modal__close:hover{color:var(--ink)}.modal__body{padding:16px 18px}.modal__body .practice{margin:0}.admin__kpis{display:grid;grid-template-columns:repeat(auto-fit,minmax(120px,1fr));gap:12px;margin-bottom:20px}.admin__kpi{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:14px 16px;display:flex;flex-direction:column;gap:2px}.admin__kpi--accent{border-color:var(--accent);background:var(--accent-tint)}.admin__kpi-value{font-size:26px;font-weight:700;line-height:1.1}.admin__kpi-label{font-size:12px;color:var(--muted)}.admin__cols{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:16px;margin-bottom:16px}.admin__card{background:var(--surface);border:1px solid var(--border);border-radius:14px;padding:16px 18px}.admin__card h2{font-size:15px;font-weight:600;margin:0 0 10px}.admin__bars{display:flex;flex-direction:column;gap:6px}.admin__bar-row{display:grid;grid-template-columns:86px 1fr 34px;align-items:center;gap:8px;font-size:13px}.admin__bar-key{color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.admin__bar-track{background:var(--accent-tint);border-radius:999px;height:8px;overflow:hidden}.admin__bar-fill{display:block;height:100%;background:var(--accent);border-radius:999px}.admin__bar-count{text-align:right;font-variant-numeric:tabular-nums}.admin__row{display:flex;align-items:center;gap:8px;padding:7px 0;border-top:1px solid var(--border);font-size:13px;flex-wrap:wrap}.admin__row:first-of-type{border-top:none}.admin__row-email{font-weight:500}.admin__row-meta{color:var(--muted);margin-right:auto}.admin__row button,.admin__actions button{font-size:12px;padding:5px 10px;border-radius:7px;border:1px solid var(--border);background:var(--surface);color:var(--ink);cursor:pointer;white-space:nowrap}.admin__row button:hover,.admin__actions button:hover{border-color:var(--accent);color:var(--accent)}.admin__row button:disabled,.admin__actions button:disabled{opacity:.5;cursor:default}.admin__table-wrap{overflow-x:auto}.admin__table{width:100%;border-collapse:collapse;font-size:13px}.admin__table th{text-align:left;color:var(--muted);font-weight:600;padding:8px 10px;border-bottom:1px solid var(--border);white-space:nowrap}.admin__table td{padding:8px 10px;border-bottom:1px solid var(--border)}.admin__actions{display:flex;gap:6px}.admin__tier{font-size:11.5px;font-weight:600;padding:2px 8px;border-radius:999px;text-transform:uppercase}.admin__tier--pro{background:var(--accent-tint);color:var(--accent-deep)}.admin__tier--trial{background:var(--gold-soft);color:var(--gold)}.admin__tier--free{background:var(--bg);color:var(--muted)}.pricing{max-width:980px;margin:0 auto;padding:8px 0 40px}.pricing__head{text-align:center}.pricing__head h1{font-size:28px;font-weight:700;margin:0 0 8px}.pricing__subtitle{color:var(--muted);max-width:560px;margin:0 auto 10px;line-height:1.6}.pricing__trial{display:inline-block;color:var(--accent-deep);background:var(--accent-soft);font-size:13.5px;font-weight:500;padding:6px 14px;border-radius:999px;margin:6px 0 18px}.pricing__billing{display:inline-flex;gap:4px;background:var(--surface);border:1px solid var(--border);border-radius:999px;padding:4px;margin-bottom:26px}.pricing__billing button{border:none;background:transparent;color:var(--muted);font:inherit;font-size:14px;font-weight:600;padding:7px 16px;border-radius:999px;cursor:pointer}.pricing__billing button.is-active{background:var(--accent);color:#fff}.pricing__save{font-size:11.5px;font-weight:600;opacity:.85;margin-left:2px}.pricing__grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:16px;align-items:start;text-align:left}.price-card{position:relative;background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:24px;display:flex;flex-direction:column}.price-card--pro{border-color:var(--accent);box-shadow:var(--btn-shadow)}.price-card--soon{opacity:.92}.price-card h2{margin:0 0 4px;font-size:19px;font-weight:700}.price-card--pro h2{color:var(--accent-deep)}.price-card__tagline{margin:0 0 14px;color:var(--muted);font-size:13.5px;line-height:1.5}.price-card__price{margin:0 0 16px;font-size:30px;font-weight:700}.price-card__per{font-size:14px;font-weight:500;color:var(--muted)}.price-card__badge{position:absolute;top:-11px;left:24px;display:inline-flex;align-items:center;gap:4px;background:var(--accent);color:#fff;font-size:11.5px;font-weight:600;padding:4px 10px;border-radius:999px}.price-card__soon{position:absolute;top:-11px;left:24px;background:var(--gold-soft);color:var(--gold);font-size:11.5px;font-weight:600;padding:4px 10px;border-radius:999px}.price-card__features{list-style:none;padding:0;margin:0 0 20px;display:flex;flex-direction:column;gap:9px;flex:1}.price-card__features li{display:flex;align-items:flex-start;gap:8px;font-size:14px;line-height:1.5}.price-card__features svg{color:var(--accent);flex-shrink:0;margin-top:2px}.price-card__cta{width:100%;justify-content:center;text-align:center}.price-card__note{margin:10px 0 0;font-size:12px;color:var(--muted);line-height:1.5}.btn.is-disabled{opacity:.6;pointer-events:none}.upgrade{display:flex;align-items:center;gap:14px;flex-wrap:wrap;background:var(--accent-soft);border:1px solid var(--accent);border-radius:14px;padding:18px}.upgrade__icon{color:var(--accent-deep);flex-shrink:0}.upgrade__text{flex:1;min-width:180px}.upgrade__text strong{display:block;font-size:15px;margin-bottom:3px}.upgrade__text p{margin:0;color:var(--muted);font-size:13.5px;line-height:1.5}.upgrade__cta{flex-shrink:0}.trial-ended{display:flex;align-items:center;gap:12px;flex-wrap:wrap;background:var(--gold-soft);border:1px solid var(--gold);border-radius:12px;padding:12px 16px;margin-bottom:18px}.trial-ended>svg{color:var(--gold);flex-shrink:0}.trial-ended__text{flex:1;min-width:200px;margin:0;font-size:13.5px;line-height:1.5}.trial-ended__cta{flex-shrink:0}.trial-ended__close{border:none;background:transparent;color:var(--muted);cursor:pointer;padding:4px;display:inline-flex}.tiers__more{display:inline-flex;align-items:center;gap:6px;margin-top:18px;color:var(--accent-deep);font-weight:600;font-size:14.5px;text-decoration:none}.home{display:flex;flex-direction:column;gap:22px}.home__command{display:flex;align-items:center;gap:12px;background:var(--surface);border:1.5px solid var(--border);border-radius:14px;padding:16px 18px;box-shadow:var(--btn-shadow)}.home__command:focus-within{border-color:var(--accent)}.home__command svg{color:var(--accent);flex-shrink:0}.home__command input{flex:1;border:none;background:transparent;color:var(--ink);font:inherit;font-size:18px;outline:none}.home__command input::placeholder{color:var(--muted)}.home-welcome{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}.home-welcome__hi{font-size:22px;font-weight:700;margin:0;display:inline}.home-welcome__chip{display:inline-block;margin-left:12px;font-size:12.5px;font-weight:600;color:var(--accent-deep);background:var(--accent-soft);padding:4px 10px;border-radius:999px;vertical-align:middle}.home-welcome__pro{flex-shrink:0}.home-teaser{display:inline-flex;align-items:center;gap:8px;background:var(--accent-soft);border:1px solid var(--accent);border-radius:999px;padding:9px 16px;color:var(--accent-deep);font-weight:600;font-size:14px;text-decoration:none;align-self:flex-start}.home-teaser svg{flex-shrink:0}.home-row{display:flex;flex-direction:column;gap:10px}.home-row__title{display:flex;align-items:center;gap:7px;font-size:14px;font-weight:600;color:var(--muted);margin:0}.home-row__title svg{color:var(--accent)}.home-chips{display:flex;flex-wrap:wrap;gap:8px}.home-chip{display:inline-flex;align-items:center;gap:7px;background:var(--surface);border:1px solid var(--border);border-radius:999px;padding:7px 13px;color:var(--ink);font-size:13.5px;font-weight:500;text-decoration:none}.home-chip:hover{border-color:var(--accent);color:var(--accent-deep)}.home-chip svg{color:var(--accent)}.home-learn{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px}.home-learn__card{background:var(--surface);border:1px solid var(--border);border-radius:14px;padding:16px 18px}.home-learn__label{display:flex;align-items:center;gap:7px;font-size:12.5px;font-weight:600;color:var(--muted);text-transform:uppercase;letter-spacing:.3px}.home-learn__label svg{color:var(--accent)}.home-learn__topic{display:block;font-size:18px;font-weight:700;margin:8px 0}.home-learn__links{display:flex;flex-wrap:wrap;gap:14px}.home-learn__links a{color:var(--accent-deep);font-weight:600;font-size:14px;text-decoration:none}.home-all{display:flex;flex-direction:column;gap:18px;margin-top:4px}.home-all__title{font-size:16px;font-weight:700;margin:0;padding-top:6px;border-top:1px solid var(--border)}.reveal{opacity:0;transform:translateY(16px);transition:opacity .6s ease,transform .6s ease}.reveal.is-visible{opacity:1;transform:none}@media (prefers-reduced-motion: reduce){.reveal{opacity:1;transform:none;transition:none}}.hero-demo{position:relative;max-width:560px;margin:6px auto 8px;text-align:center}.hero-demo__frame{position:relative}.hero-demo__frame:before{content:"";position:absolute;top:-26px;right:-26px;bottom:-26px;left:-26px;z-index:0;border-radius:28px;background:radial-gradient(60% 60% at 50% 25%,var(--accent-soft),transparent 70%);pointer-events:none}.hero-demo .academy__widget{position:relative;z-index:1;box-shadow:var(--btn-shadow);text-align:left}.hero__demo-label{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:600;color:var(--accent-deep);margin-bottom:12px}.trust{display:flex;flex-wrap:wrap;justify-content:center;gap:14px;margin:30px auto;max-width:760px}.trust__item{flex:1;min-width:150px;background:var(--surface);border:1px solid var(--border);border-radius:14px;padding:16px;text-align:center}.trust__num{display:block;font-size:30px;font-weight:700;color:var(--accent);line-height:1}.trust__num--text{font-size:19px;color:var(--ink)}.trust__label{display:block;margin-top:6px;font-size:13px;color:var(--muted)}.feature{transition:transform .18s ease,border-color .18s ease}.feature:hover{transform:translateY(-4px);border-color:var(--accent)}.showcase{margin:40px auto;max-width:880px;text-align:center}.showcase__title{font-size:24px;font-weight:700;margin:0 0 22px}.showcase__grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:16px;text-align:left}.showcase__card{background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:22px;transition:transform .18s ease,border-color .18s ease}.showcase__card:hover{transform:translateY(-4px);border-color:var(--accent)}.showcase__icon{display:inline-flex;padding:10px;border-radius:12px;background:var(--accent-soft);color:var(--accent-deep);margin-bottom:12px}.showcase__card h3{margin:0 0 6px;font-size:17px;font-weight:700}.showcase__card p{margin:0 0 14px;color:var(--muted);font-size:14px;line-height:1.6}.showcase__link{display:inline-flex;align-items:center;gap:6px;color:var(--accent-deep);font-weight:600;font-size:14px;text-decoration:none}.tier__price{font-size:28px;font-weight:700;margin:6px 0 2px}.tier__per{font-size:14px;font-weight:500;color:var(--muted)}.tier__yearly{font-size:12.5px;color:var(--accent-deep);font-weight:600;margin:0 0 8px}.tier--soon{opacity:.92}.tier__soon{position:absolute;top:-10px;left:22px;background:var(--gold-soft);color:var(--gold);font-size:11px;font-weight:600;padding:3px 9px;border-radius:999px}.faq{max-width:720px;margin:44px auto}.faq__title{font-size:24px;font-weight:700;text-align:center;margin:0 0 20px}.faq__list{display:flex;flex-direction:column;gap:10px}.faq__item{background:var(--surface);border:1px solid var(--border);border-radius:12px;overflow:hidden}.faq__item.is-open{border-color:var(--accent)}.faq__q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:12px;text-align:left;background:transparent;border:none;color:var(--ink);font:inherit;font-size:15px;font-weight:600;padding:16px 18px;cursor:pointer}.faq__q svg{color:var(--muted);flex-shrink:0;transition:transform .2s ease}.faq__item.is-open .faq__q svg{transform:rotate(180deg)}.faq__a{margin:0;padding:0 18px 16px;color:var(--muted);font-size:14px;line-height:1.6}.final-cta{text-align:center;margin:44px auto 8px;padding:36px 20px;max-width:720px;border-radius:20px;border:1px solid var(--border);background:radial-gradient(80% 120% at 50% 0%,var(--accent-soft),transparent 70%)}.final-cta h2{font-size:26px;font-weight:700;margin:0 0 8px}.final-cta p{color:var(--muted);margin:0 0 20px}.signup-wall{text-align:center}.signup-wall__icon{display:inline-flex;padding:12px;border-radius:14px;background:var(--accent-soft);color:var(--accent-deep);margin-bottom:12px}.signup-wall__body{color:var(--muted);font-size:14.5px;line-height:1.65;margin:0 0 18px}.signup-wall__actions{display:flex;flex-direction:column;gap:8px}.signup-wall__actions .btn{width:100%;justify-content:center}