:root{--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark;--bg:#0b0c10;--bg-soft:#12141b;--bg-card:#161922;--accent:#24e4d1;--accent-glow:#24e4d140;--accent-soft:#f6c56b;--text:#f5f7fb;--text-muted:#9aa3b2;--stroke:#ffffff14;--shadow:#06080c99;--font-body:"Space Grotesk",sans-serif;--font-display:"Teko",sans-serif}*{box-sizing:border-box}body{font-family:var(--font-body);color:var(--text);background:radial-gradient(1200px 600px at 20% -10%,#1e2a3b 0%,transparent 60%),radial-gradient(800px 500px at 85% 20%,#24e4d11f 0%,transparent 65%),var(--bg);min-height:100vh;margin:0}a{color:inherit;text-decoration:none}.page{flex-direction:column;min-height:100vh;display:flex}.content{width:min(1100px,100%);margin:0 auto;padding:40px 24px 80px}.site-header{z-index:10;-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);background:linear-gradient(#090a0eeb,#090a0e99);border-bottom:1px solid #ffffff0a;position:sticky;top:0}.site-header__inner{justify-content:flex-start;align-items:center;gap:20px;width:100%;margin:0 auto;padding:20px 24px;display:flex}.site-header__content{align-items:center;gap:20px;width:min(1100px,100%);margin:0 auto;display:flex;transform:translate(-96px)}.brand{align-items:center;gap:12px;display:flex}.brand__icon{justify-content:center;align-items:center;width:28px;height:28px;margin-top:-5px;display:inline-flex}.brand__icon img{object-fit:contain;filter:drop-shadow(0 0 12px #10e7d273);width:100%;height:100%}.brand__text{font-family:var(--font-display);letter-spacing:.08em;text-transform:uppercase;font-size:1.4rem}.tabs{gap:12px;padding:6px 0;display:flex}.mobile-toggle{color:var(--text);cursor:pointer;background:#ffffff0f;border:none;border-radius:10px;margin-left:auto;padding:8px 12px;font-size:1.1rem;display:none}.mobile-nav{z-index:50;grid-template-columns:1fr;width:100vw;height:100vh;display:grid;position:fixed;inset:0}.mobile-nav__backdrop{z-index:0;background:#04060ab3;border:none;position:absolute;inset:0}.mobile-nav__panel{border-left:1px solid var(--stroke);z-index:1;background:#0c0e14fa;align-content:start;gap:12px;width:min(320px,86%);height:100%;min-height:100vh;margin-left:auto;padding:18px;animation:.2s slide-in;display:grid;position:relative}.mobile-nav__head{justify-content:space-between;align-items:center;gap:12px;display:flex}.mobile-nav__email{color:var(--text-muted);word-break:break-all;font-size:.9rem}.mobile-nav__links{gap:10px;display:grid}.mobile-nav__links a{background:#ffffff0a;border:1px solid #ffffff0f;border-radius:10px;padding:8px 10px}.mobile-nav__actions{gap:8px;display:grid}@keyframes slide-in{0%{opacity:0;transform:translate(40px)}to{opacity:1;transform:translate(0)}}.profile{align-items:center;gap:10px;margin-left:auto;display:flex;position:relative}.profile-upgrade{box-shadow:0 12px 24px #24e4d14d}.profile-menu{position:relative}.profile-menu__panel{border:1px solid var(--stroke);z-index:20;background:#161922fa;border-radius:16px;gap:10px;min-width:200px;padding:12px;display:grid;position:absolute;top:calc(100% + 10px);right:0;box-shadow:0 20px 40px #06080c99}.profile-menu__email{color:var(--text-muted);word-break:break-all;font-size:.85rem}.profile-menu__plan{color:var(--text);border:1px solid var(--stroke);background:#ffffff08;border-radius:10px;width:100%;padding:8px 10px;font-size:.85rem}.profile-menu__item{color:var(--text);font-size:.9rem;font-family:var(--font-body);cursor:pointer;background:#ffffff0a;border:1px solid #0000;border-radius:10px;justify-content:space-between;align-items:center;gap:8px;padding:8px 10px;display:flex}.profile-menu__item:hover{border-color:#ffffff14}.profile-menu__logout{color:#ff6b6b}.tab{color:var(--text-muted);border-bottom:2px solid #0000;padding:8px 18px;font-size:.95rem;transition:all .2s}.tab--active{color:var(--text);border-bottom-color:var(--accent)}.tab:hover{color:var(--text);border-bottom-color:#24e4d199}.hero{gap:20px;padding:16px 0 32px;display:grid}.home{gap:40px;display:grid}.hero--split{grid-template-columns:repeat(auto-fit,minmax(280px,1fr));align-items:center}.hero__copy{gap:14px;display:grid}.hero__meta{color:var(--text-muted);flex-wrap:wrap;gap:12px;font-size:.85rem;display:flex}.hero__visual{align-items:center;min-height:320px;display:grid;position:relative}.hero-card{background:linear-gradient(140deg,#161a24f2,#090c12e6);border:1px solid #ffffff14;border-radius:18px;gap:8px;padding:18px;display:grid;box-shadow:0 20px 50px #00000059}.hero-card__label{letter-spacing:.18em;text-transform:uppercase;color:var(--text-muted);margin:0;font-size:.75rem}.hero-card__title{margin:0;font-size:1.2rem}.hero-card__text{color:var(--text-muted);margin:0;font-size:.95rem}.hero-card--top{width:min(280px,80%);position:absolute;top:10%;right:0}.hero-card--middle{width:min(320px,85%);position:absolute;top:40%;left:0}.hero-card--bottom{width:min(260px,75%);position:absolute;bottom:0;right:10%}.home__stats{grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:16px;display:grid}.stat{background:#ffffff08;border:1px solid #ffffff14;border-radius:16px;padding:18px}.stat__value{font-family:var(--font-display);margin:0;font-size:1.9rem}.stat__label{color:var(--text-muted);margin:4px 0 0;font-size:.9rem}.home__grid{grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px;display:grid}.feature-card h2{margin:10px 0;font-size:1.4rem}.home__steps{gap:16px;display:grid}.home__steps--split{grid-template-columns:repeat(auto-fit,minmax(280px,1fr));align-items:start;gap:24px}.steps-panel{gap:16px;display:grid}.steps-visual{background:#0e121ab3;border:1px solid #ffffff14;border-radius:18px;gap:20px;padding:18px;display:grid}.steps-visual__head h3{margin:6px 0 8px}.steps-demo{perspective:900px;height:200px;position:relative}.steps-card{width:min(280px,85%);height:170px;transform-style:preserve-3d;-webkit-transform-style:preserve-3d;box-shadow:none;opacity:0;will-change:transform;background:0 0;border:none;border-radius:18px;margin:auto;animation:12s ease-in-out infinite both stepsLoop;position:absolute;inset:0}.steps-card__side{backface-visibility:hidden;gap:6px;padding:16px;display:grid;position:absolute;inset:0}.steps-card__front{background:linear-gradient(140deg,#1f2734e6,#0c1017e6);border:1px solid #ffffff14;border-radius:18px;animation:12s ease-in-out infinite stepsFront;transform:rotateY(0);box-shadow:0 18px 40px #0006}.steps-card__back{background:linear-gradient(140deg,#141a24f2,#0a0c12f2);border:1px solid #ffffff14;border-radius:18px;animation:12s ease-in-out infinite stepsBack;transform:rotateY(180deg)translateZ(1px);box-shadow:0 18px 40px #0006}.steps-card__label{text-transform:uppercase;letter-spacing:.18em;color:var(--text-muted);margin:0;font-size:.7rem}.steps-card__text{margin:0;font-size:.95rem}.steps-card--one{z-index:3;animation-delay:0s}.steps-card--two{z-index:2;animation-delay:4s}.steps-card--three{z-index:1;animation-delay:8s}.steps-card--one .steps-card__front,.steps-card--one .steps-card__back{animation-delay:0s}.steps-card--two .steps-card__front,.steps-card--two .steps-card__back{animation-delay:4s}.steps-card--three .steps-card__front,.steps-card--three .steps-card__back{animation-delay:8s}.steps-demo__tag{color:var(--accent);opacity:0;background:#24e4d124;border:1px solid #24e4d14d;border-radius:999px;padding:6px 10px;font-size:.75rem;animation:12s ease-in-out infinite stepsTag;position:absolute;top:-8px;right:6px}.step{background:#0c0e1499;border:1px solid #ffffff0f;border-radius:16px;grid-template-columns:auto 1fr;align-items:center;gap:16px;padding:16px 18px;display:grid}.step__index{font-family:var(--font-display);color:var(--accent);margin:0;font-size:1.4rem}.step h3{margin:0 0 6px}.step p{color:var(--text-muted);margin:0}.home__cta{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px;display:flex}.site-footer{border-top:1px solid #ffffff14;margin-top:auto;padding:24px 0 36px}.site-footer__inner{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px;width:min(1120px,92vw);margin:0 auto;display:flex}.site-footer__brand{color:var(--text-muted);gap:6px;display:grid}.site-footer__copy{font-size:.9rem}.site-footer__support{color:var(--text-muted);font-size:.9rem}.site-footer__support a{color:inherit;text-decoration:none}.site-footer__support a:hover{color:var(--text)}.site-footer__links{flex-wrap:wrap;gap:14px;font-size:.9rem;display:flex}.site-footer__links a{color:var(--text-muted);text-decoration:none}.site-footer__links a:hover{color:var(--text)}.animate-rise{animation:.6s both rise}.animate-rise-delay{animation:.6s .15s both rise}.animate-rise-slow{animation:.6s .3s both rise}@keyframes rise{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}@keyframes stepsLoop{0%{opacity:0;transform:translateY(14px)}8%{opacity:1;transform:translateY(0)}22%{opacity:1;transform:translateY(0)}36%{opacity:1;transform:translateY(0)}42%{opacity:0;transform:translate(70px)translateY(-16px)}to{opacity:0;transform:translate(70px)translateY(-16px)}}@keyframes stepsFront{0%,18%{opacity:1;transform:rotateY(0)}26%{opacity:0;transform:rotateY(180deg)}to{opacity:0;transform:rotateY(180deg)}}@keyframes stepsBack{0%,18%{opacity:0;transform:rotateY(180deg)translateZ(1px)}26%{opacity:1;transform:rotateY(0)translateZ(1px)}42%{opacity:1;transform:rotateY(0)translateZ(1px)}to{opacity:0;transform:rotateY(0)translateZ(1px)}}@keyframes stepsTag{0%,30%{opacity:0;transform:translateY(4px)}36%{opacity:1;transform:translateY(0)}48%,to{opacity:0;transform:translateY(-6px)}}@media (prefers-reduced-motion:reduce){.animate-rise,.animate-rise-delay,.animate-rise-slow,.steps-card,.steps-card__front,.steps-card__back,.steps-demo__tag{animation:none}}.hero h1{font-family:var(--font-display);letter-spacing:.03em;margin:0 0 12px;font-size:clamp(2.5rem,5vw,4.2rem)}.hero__lead{max-width:520px;color:var(--accent-soft);margin:0;font-size:1.2rem;line-height:1.6}.hero__cta{flex-wrap:wrap;gap:12px;display:flex}.button{cursor:pointer;font-weight:600;font-family:var(--font-body);border:1px solid #0000;border-radius:999px;justify-content:center;align-items:center;padding:12px 20px;transition:all .2s;display:inline-flex}.button:disabled{cursor:pointer;opacity:.7;box-shadow:none}.button:disabled:hover{box-shadow:none;transform:none}.button:disabled.button--ghost{color:var(--text-muted);background:#ffffff0a;border-color:#ffffff14}.button:disabled.button--primary{color:#06080cb3;background:#24e4d138}.button--small{padding:6px 12px;font-size:.8rem}.button--compact{min-height:0;padding:4px 10px;line-height:1}.button--icon{width:38px;height:38px;padding:0;font-size:1rem}.button--primary{background:var(--accent);color:var(--bg);box-shadow:0 10px 20px #24e4d133}.button--link{color:var(--text-muted);background:0 0;border:none;padding:0;font-weight:600;text-decoration:underline}.button--link:hover{color:var(--text)}.button--ghost{color:var(--text);background:0 0;border-color:#fff3}.button--danger{color:#ff6b6b;border-color:#ff6b6b80}.button--primary:hover{transform:translateY(-1px)}.button--ghost:hover{border-color:var(--accent);color:var(--accent)}.button--danger:hover{color:#ff6b6b;border-color:#ff6b6b}.eyebrow{letter-spacing:.2em;text-transform:uppercase;color:var(--text-muted);margin:0;font-size:.75rem}.section-head h1{font-family:var(--font-display);letter-spacing:.02em;margin:8px 0 10px;font-size:clamp(2.3rem,4vw,3.4rem)}.section-head--inline{align-items:center;gap:12px;display:flex}.section-head--row{justify-content:space-between;align-items:center;gap:16px;display:flex}.section-head__title{align-items:center;gap:12px;display:flex}.section-lead{color:var(--text-muted);max-width:520px;margin:0}.create{flex-direction:column;gap:32px;display:flex}.deck-panel{gap:16px;display:grid}.deck-form{flex-wrap:wrap;align-items:flex-start;gap:16px;display:flex}.deck-form .field{flex:260px}.deck-form .button{align-self:flex-start;margin-top:50px}.deck-status{color:var(--text-muted);flex-wrap:wrap;align-items:center;gap:12px;font-size:.95rem;display:flex}.deck-created{gap:24px;display:grid}.deck-title{flex-direction:column;gap:10px;display:flex}.deck-title__name{flex-wrap:wrap;align-items:center;gap:10px;display:flex}.deck-title__edit{flex-wrap:wrap;align-items:center;gap:12px;display:flex}.deck-title__input{border:1px solid var(--stroke);min-width:220px;color:var(--text);background:#0c0f16e6;border-radius:14px;padding:10px 14px;font-size:1rem}.deck-title__edit-actions{flex-wrap:wrap;gap:8px;display:inline-flex}.deck-title__actions{flex-wrap:wrap;align-items:center;gap:10px;display:flex}.deck-title h2{font-family:var(--font-display);letter-spacing:.04em;margin:0;font-size:clamp(1.8rem,3vw,2.6rem)}.status-pill{color:var(--accent);text-transform:uppercase;letter-spacing:.12em;background:#24e4d133;border-radius:999px;padding:4px 10px;font-size:.75rem}.status-error{color:#ff6b6b;font-size:.9rem}.status-warn{color:#f6c453;font-size:.9rem}.status-success{color:#2ecc71;font-size:.9rem}.cards-grid{grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:20px;display:grid}.panel{border:1px solid var(--stroke);box-shadow:0 24px 60px var(--shadow);background:#161922eb;border-radius:20px;padding:24px}.list-panel{gap:16px;display:grid}.panel__label{text-transform:uppercase;letter-spacing:.24em;color:var(--text-muted);font-size:.75rem}.field{gap:10px;margin-top:18px;display:grid}.helper-text{color:var(--text-muted);margin:0;font-size:.9rem;display:block}.field__hint{color:var(--text-muted);font-size:.85rem;display:block}.field__row{align-items:center;gap:12px;display:flex}.field__group{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;display:grid}.field__row .field__input{flex:auto}.field__title{color:var(--text);font-weight:600}.field__input{color:var(--text);background:#0f1117;border:1px solid #ffffff1a;border-radius:12px;padding:14px 16px;font-size:1rem}.field__input--select{appearance:none;background-image:url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%23A9B3C9' stroke-width='1.6' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");background-position:right 14px center;background-repeat:no-repeat;background-size:12px 8px;padding-right:38px}.field__input:focus{outline:2px solid var(--accent);border-color:#0000}.card-stage{gap:18px;margin-top:18px;display:grid}.card-stack{perspective:1200px;padding:8px;position:relative}.flashcard{height:260px;transform-style:preserve-3d;cursor:pointer;background:linear-gradient(140deg,#1a2130,#0f1118);border:1px solid #ffffff14;border-radius:18px;transition:transform .6s;position:relative;box-shadow:0 30px 60px #080a1099}.flashcard.is-entering{animation:.45s cardIn}.flashcard.is-entering-left{animation:.45s cardInLeft}.flashcard.is-flipped{transform:rotateY(180deg)}.flashcard.is-flying{animation:.46s ease-in forwards cardFly}.flashcard__side{backface-visibility:hidden;gap:12px;padding:20px;display:grid;position:absolute;inset:0}.flashcard__front{background:linear-gradient(140deg,#1f2734,#12151d);border-radius:18px}.flashcard__back{background:linear-gradient(140deg,#12161e,#0c1017);border-radius:18px;transform:rotateY(180deg)}.flashcard__label{color:var(--text-muted);letter-spacing:.12em;text-transform:uppercase;font-size:.85rem}.flashcard__input,.flashcard__textarea{width:100%;color:var(--text);resize:none;background:#080a0ecc;border:1px solid #ffffff1f;border-radius:12px;padding:14px;font-size:1rem}.flashcard__textarea{min-height:120px}.flashcard__input:focus,.flashcard__textarea:focus{outline:2px solid var(--accent);border-color:#0000}.rotate-button{width:36px;height:36px;color:var(--accent);cursor:pointer;background:#0f121ae6;border:1px solid #ffffff1f;border-radius:999px;place-items:center;transition:transform .2s;display:grid;position:absolute;bottom:16px;right:18px;box-shadow:0 12px 20px #04060a80}.rotate-button:hover{transform:rotate(25deg)}.card-shadow{filter:blur(20px);z-index:-1;background:radial-gradient(circle,#24e4d140,#0000 70%);border-radius:20px;position:absolute;inset:18px 12px -12px}.cards-panel__head{justify-content:space-between;align-items:center;gap:12px;display:flex}.cards-panel{flex-direction:column;height:600px;display:flex}.cards-panel__head h2{font-family:var(--font-display);letter-spacing:.03em;margin:6px 0 0}.cards-panel__title{align-items:center;gap:10px;display:flex}.limit-pill{color:#f6c453;text-transform:uppercase;letter-spacing:.1em;background:#f6c45329;border-radius:999px;padding:4px 10px;font-size:.75rem}.count-pill{color:var(--text);background:#ffffff0f;border-radius:999px;padding:6px 12px;font-size:.85rem}.cards-list{gap:12px;margin-top:20px;display:grid}.cards-panel .cards-list{flex:1;padding-right:6px;overflow-y:auto}.card-entry-panel{height:520px}.card-entry-panel .card-stage{height:100%}.card-action-button{place-self:center;width:320px;padding:16px 20px}.cards-list__item{background:#0c0e14cc;border:1px solid #ffffff0d;border-radius:14px;justify-content:space-between;gap:12px;padding:14px 16px;display:flex}.cards-list__item--active{border-color:#24e4d199;box-shadow:0 0 18px #24e4d12e}.cards-list__item--selectable{cursor:pointer}.cards-list__term{margin:0 0 6px;font-weight:600}.cards-list__definition{color:var(--text-muted);margin:0;font-size:.9rem}.cards-list__tag{letter-spacing:.1em;text-transform:uppercase;color:var(--accent);align-self:flex-start;font-size:.7rem}.cards-list__actions{align-items:center;gap:10px;display:inline-flex}.empty-copy{color:var(--text-muted);margin-top:18px;font-size:.95rem}.list{gap:28px;display:grid}.auth{justify-items:center;gap:28px;display:grid}.auth-card{border:1px solid var(--stroke);width:min(520px,100%);box-shadow:0 24px 60px var(--shadow);background:#161922eb;border-radius:20px;gap:16px;padding:28px;display:grid}.auth-header h1{font-family:var(--font-display);letter-spacing:.04em;margin:0;font-size:clamp(1.8rem,3vw,2.4rem)}.auth-header p{color:var(--text-muted);margin:6px 0 0}.auth-panel{width:100%;max-width:520px}.auth-tabs{background:#ffffff0a;border:1px solid #ffffff0f;border-radius:999px;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;padding:6px;display:grid}.auth-tab{color:var(--text-muted);font-size:.95rem;font-family:var(--font-body);cursor:pointer;background:0 0;border:none;border-radius:999px;padding:10px 14px;transition:all .2s}.auth-tab.is-active{color:var(--bg);background:var(--accent);box-shadow:0 0 14px var(--accent-glow)}.auth-form{gap:12px;margin-top:18px;display:grid}.auth-form .button{margin-top:8px}.auth-divider{color:var(--text-muted);align-items:center;gap:12px;margin-top:16px;font-size:.85rem;display:flex}.auth-divider:before,.auth-divider:after{content:"";background:#ffffff14;flex:auto;height:1px}.auth-google{justify-content:center;margin-top:12px;display:flex}.ai-panel{gap:16px;display:grid}.ai-tabs{background:#ffffff0a;border:1px solid #ffffff0f;border-radius:999px;grid-template-columns:repeat(2,minmax(0,1fr));justify-self:start;gap:8px;width:fit-content;padding:6px;display:inline-grid}.ai-tab{color:var(--text-muted);font-size:.95rem;font-family:var(--font-body);cursor:pointer;background:0 0;border:none;border-radius:999px;padding:10px 14px;transition:all .2s}.ai-tab.is-active{color:var(--bg);background:var(--accent);box-shadow:0 0 14px var(--accent-glow)}.ai-inputs{gap:16px;display:grid}.ai-actions{flex-wrap:wrap;gap:12px;display:flex}.ai-actions--inline{align-items:center}.ai-actions--secondary{align-items:center;gap:16px}.ai-hints{color:var(--text-muted);gap:2px;font-size:.9rem;display:grid}.ai-usage{flex-wrap:wrap;align-items:center;gap:12px;display:flex}.ai-preview{gap:20px;width:100%;display:grid}.ai-preview__head{flex-wrap:wrap;justify-content:space-between;align-items:flex-end;gap:12px;display:flex}.ai-preview__list{gap:16px;width:100%;display:grid}.ai-card{border:1px solid var(--stroke);background:#0c0e14cc;border-radius:16px;gap:12px;width:100%;padding:16px;display:grid}.ai-preview__text{color:var(--text-muted);width:100%;margin:0}.ai-preview__actions{justify-content:flex-end;display:flex}.ai-help{color:var(--text-muted);margin:0;font-size:.9rem}.ai-snackbar{border:1px solid var(--stroke);z-index:9999;background:#0a0c12f2;border-radius:16px;grid-auto-flow:column;align-items:center;gap:16px;padding:14px 18px;animation:.2s ai-snackbar-in;display:grid;position:fixed;bottom:24px;left:24px;box-shadow:0 16px 40px #00000059}.ai-snackbar__title{color:var(--text-muted);margin:0;font-size:.9rem}.ai-snackbar__text{color:var(--text);margin:4px 0 0;font-size:1rem}.ai-snackbar__link{color:var(--accent);border-bottom:1px solid #0000;font-weight:600;text-decoration:none;transition:all .2s}.ai-snackbar__link:hover{border-bottom-color:var(--accent)}@keyframes ai-snackbar-in{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}.billing-panel{gap:16px;max-width:520px;display:grid}.billing-header{gap:4px;display:grid}.billing-plan{margin:0;font-size:1.2rem;font-weight:600}.billing-actions{flex-wrap:wrap;gap:12px;display:flex}.billing-grid{grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:20px;display:grid}.billing-card{gap:16px;display:grid;position:relative}.billing-card__head{gap:4px;display:grid}.billing-price{margin:0;font-size:2.2rem;font-weight:700}.billing-price__unit{color:var(--text-muted);margin:0}.billing-features{color:var(--text-muted);gap:8px;margin:0;padding:0;list-style:none;display:grid}.billing-features li:before{content:"✓";color:var(--accent);margin-right:8px}.billing-card--featured{border-color:#24e4d180;box-shadow:0 30px 70px #24e4d12e}.billing-card__badge{background:var(--accent);color:var(--bg);letter-spacing:.12em;text-transform:uppercase;border-radius:999px;padding:6px 12px;font-size:.75rem;position:absolute;top:-12px;right:16px}.billing-footer{justify-content:space-between;align-items:center;gap:12px;margin-top:16px;display:flex}.learn{gap:28px;display:grid}.learn__title h1{font-family:var(--font-display);letter-spacing:.02em;margin:8px 0 0;font-size:clamp(2rem,4vw,3.2rem)}.learn__progress-text{color:var(--text-muted);margin:6px 0 0;font-size:.95rem}.learn-stage{place-items:center;gap:24px;display:grid}.learn__progress{gap:8px;width:min(540px,100%);display:grid}.learn-complete .learn__progress{width:100%}.progress-bar{background:#ffffff14;border-radius:999px;height:8px;overflow:hidden}.progress-bar__fill{background:var(--accent);height:100%;box-shadow:0 0 16px var(--accent-glow);transition:width .2s}.progress-value{color:var(--text-muted);text-align:right;font-size:.85rem}.usage-block{gap:10px;margin-bottom:18px;display:grid}.usage-block .button{justify-self:flex-start}.learn-card{width:min(520px,100%)}.learn-card .flashcard{height:320px}.learn-card__text{margin:0;font-size:1.1rem;line-height:1.6}.learn-card__flyout{transform-style:preserve-3d;transform:translateX(var(--drag-x,0px))rotate(var(--drag-rot,0deg))}.learn-card__flyout.is-flying{animation:.46s ease-in forwards cardFlyFromDrag}.learn-card__flyout.is-dragging,.learn-card__flyout.is-drag-offset{animation:none}.learn-card__flyout.is-incorrect.is-flying{animation:.46s ease-in forwards cardFlyLeftFromDrag}.learn-card__drag{cursor:grab;touch-action:none;-webkit-user-select:none;user-select:none;will-change:transform;transition:transform .2s}.learn-card__flyout.is-locked .learn-card__drag{cursor:default}.learn-card__drag.is-dragging{cursor:grabbing;transition:none}.learn-card__flyout.is-correct .flashcard{border-color:#2ecc7199;box-shadow:0 30px 60px #2ecc7133}.learn-card__flyout.is-incorrect .flashcard{border-color:#e5121299;box-shadow:0 30px 60px #e5121299}.learn-actions{justify-content:center;gap:12px;width:100%;display:flex}.learn-actions .button{padding:10px 20px}.learn-hints{color:var(--text-muted);text-align:center;margin:6px 0 0;font-size:.85rem}.learn-hints__mobile{display:none}.learn-complete h2{font-family:var(--font-display);letter-spacing:.03em;margin:0}.empty-state{place-items:center;padding:60px 0;display:grid}.empty-state__card{border:1px solid var(--stroke);text-align:center;background:#161922eb;border-radius:20px;gap:12px;max-width:420px;padding:28px;display:grid}.empty-state__title{margin:0;font-size:1.2rem}.empty-state__text{color:var(--text-muted);margin:0}.empty-state__actions{flex-wrap:nowrap;justify-content:center;gap:12px;width:100%;max-width:360px;margin-top:8px;display:inline-flex}.empty-state__actions .button{white-space:nowrap;padding:10px 14px;font-size:.9rem}.toast{border:1px solid var(--stroke);z-index:20;background:#161922f2;border-radius:12px;padding:12px 16px;font-size:.95rem;animation:.2s toast-in;box-shadow:0 20px 40px #06080c99}.toast--success{color:var(--accent)}.toast--error{color:#ff6b6b}.toast-stack{z-index:40;gap:10px;max-width:min(340px,90vw);display:grid;position:fixed;top:24px;right:24px}.toast-stack .toast{position:static}.toast--leaving{animation:.22s forwards toast-out}@keyframes toast-in{0%{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:translateY(0)}}@keyframes toast-out{0%{opacity:1;transform:translateY(0)}to{opacity:0;transform:translateY(-6px)}}.modal-backdrop{z-index:30;background:#04060ab3;place-items:center;padding:24px;display:grid;position:fixed;inset:0}.modal{border:1px solid var(--stroke);background:#12141cfa;border-radius:18px;gap:12px;width:min(420px,100%);padding:24px;display:grid;box-shadow:0 30px 60px #06080cb3}.modal__title{font-size:1.4rem;font-family:var(--font-display);letter-spacing:.03em;margin:0}.modal__text{color:var(--text-muted);margin:0}.modal__actions{justify-content:flex-end;gap:12px;display:flex}@keyframes cardFly{0%{transform:translateX(0)rotateY(var(--card-rotate,0deg));opacity:1}to{opacity:0;transform:translate(160px)rotate(8deg)}}@keyframes cardFlyFromDrag{0%{transform:translateX(var(--drag-x,0px))rotate(var(--drag-rot,0deg));opacity:1}to{transform:translateX(calc(var(--drag-x,0px) + 160px))rotate(8deg);opacity:0}}@keyframes cardFlyLeft{0%{transform:translateX(0)rotateY(var(--card-rotate,0deg));opacity:1}to{opacity:0;transform:translate(-160px)rotate(-8deg)}}@keyframes cardFlyLeftFromDrag{0%{transform:translateX(var(--drag-x,0px))rotate(var(--drag-rot,0deg));opacity:1}to{transform:translateX(calc(var(--drag-x,0px) - 160px))rotate(-8deg);opacity:0}}@keyframes cardIn{0%{opacity:0;transform:translateY(12px)scale(.98)}to{opacity:1;transform:translateY(0)scale(1)}}@keyframes cardInLeft{0%{opacity:0;transform:translate(-140px)scale(.98)}to{opacity:1;transform:translate(0)scale(1)}}@media (max-width:900px){.content{padding:16px 16px 48px}.site-header__inner{flex-direction:row;justify-content:space-between;align-items:center;gap:12px}.site-header__content{flex-wrap:wrap;width:100%;display:none;transform:none}.tabs,.profile{display:none}.mobile-toggle{justify-content:center;align-items:center;display:inline-flex}.hero{padding:40px 0 24px}.hero__cta{flex-direction:column;align-items:stretch}.hero__meta{flex-direction:column}.hero__visual{gap:12px;min-height:auto}.hero-card--top,.hero-card--middle,.hero-card--bottom{width:100%;position:relative;inset:auto}.home__steps--split{grid-template-columns:1fr}.steps-demo{height:180px}.steps-card{height:150px}.section-head--row{flex-direction:column;align-items:flex-start}.section-head--inline{flex-wrap:wrap}.auth-card{padding:22px}.deck-form{flex-direction:column;align-items:stretch}.deck-form .button{align-self:flex-start;margin-top:0}.ai-actions--secondary{flex-direction:column;align-items:flex-start}.ai-actions--inline{flex-direction:column;align-items:stretch}.ai-actions--inline .button{width:100%}.field__row{flex-direction:column;align-items:stretch}.field__group{grid-template-columns:1fr}.cards-panel,.card-entry-panel{height:auto}.card-action-button{width:100%}.cards-list__item{flex-direction:column;align-items:flex-start}.cards-list__actions{flex-wrap:wrap;justify-content:flex-start;width:100%}.learn-card .flashcard{height:260px}.learn-actions{flex-direction:column;align-items:stretch}.learn-hints{text-align:left}.learn-hints__desktop{display:none}.learn-hints__mobile{display:inline}.empty-state__actions{flex-direction:column;align-items:stretch}.toast-stack{max-width:min(320px,92vw);top:16px;right:16px}}
@font-face{font-family:Space Grotesk;font-style:normal;font-weight:300 700;font-display:swap;src:url(../media/32687112bd2dd8db-s.cfdd66c2.woff2)format("woff2");unicode-range:U+102-103,U+110-111,U+128-129,U+168-169,U+1A0-1A1,U+1AF-1B0,U+300-301,U+303-304,U+308-309,U+323,U+329,U+1EA0-1EF9,U+20AB}@font-face{font-family:Space Grotesk;font-style:normal;font-weight:300 700;font-display:swap;src:url(../media/28868e710e86be81-s.c30238d4.woff2)format("woff2");unicode-range:U+100-2BA,U+2BD-2C5,U+2C7-2CC,U+2CE-2D7,U+2DD-2FF,U+304,U+308,U+329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:Space Grotesk;font-style:normal;font-weight:300 700;font-display:swap;src:url(../media/0c89a48fa5027cee-s.p.4564287c.woff2)format("woff2");unicode-range:U+??,U+131,U+152-153,U+2BB-2BC,U+2C6,U+2DA,U+2DC,U+304,U+308,U+329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}@font-face{font-family:Space Grotesk Fallback;src:local(Arial);ascent-override:89.71%;descent-override:26.62%;line-gap-override:0.0%;size-adjust:109.69%}.space_grotesk_c4b9353c-module__EaCDjW__className{font-family:Space Grotesk,Space Grotesk Fallback;font-style:normal}.space_grotesk_c4b9353c-module__EaCDjW__variable{--font-body:"Space Grotesk","Space Grotesk Fallback"}
@font-face{font-family:Teko;font-style:normal;font-weight:300 700;font-display:swap;src:url(../media/be96dfd95bc1b3a9-s.814f80fe.woff2)format("woff2");unicode-range:U+900-97F,U+1CD0-1CF9,U+200C-200D,U+20A8,U+20B9,U+20F0,U+25CC,U+A830-A839,U+A8E0-A8FF,U+11B00-11B09}@font-face{font-family:Teko;font-style:normal;font-weight:300 700;font-display:swap;src:url(../media/470057c32c573b0a-s.8ccea0d6.woff2)format("woff2");unicode-range:U+100-2BA,U+2BD-2C5,U+2C7-2CC,U+2CE-2D7,U+2DD-2FF,U+304,U+308,U+329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:Teko;font-style:normal;font-weight:300 700;font-display:swap;src:url(../media/b897c54bb211cfcd-s.p.972ad4ab.woff2)format("woff2");unicode-range:U+??,U+131,U+152-153,U+2BB-2BC,U+2C6,U+2DA,U+2DC,U+304,U+308,U+329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}@font-face{font-family:Teko Fallback;src:local(Arial);ascent-override:146.26%;descent-override:72.52%;line-gap-override:0.0%;size-adjust:65.5%}.teko_ec5aae69-module__DhX-1W__className{font-family:Teko,Teko Fallback;font-style:normal}.teko_ec5aae69-module__DhX-1W__variable{--font-display:"Teko","Teko Fallback"}