@import "https://unpkg.com/open-props";@import "https://unpkg.com/open-props/normalize.min.css";:root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light dark;--font-sans:"Inter", system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;--primary:#14b8a6;--primary-light:#2dd4bf;--primary-dark:#0d9488;--secondary:#06b6d4;--accent:#0891b2;--surface:var(--lightningcss-light,#fff)var(--lightningcss-dark,#1e1e2e);--surface-soft:var(--lightningcss-light,#f0fdfa)var(--lightningcss-dark,#2d2d3a);--text:var(--lightningcss-light,#0f172a)var(--lightningcss-dark,#f1f5f9);--text-muted:var(--lightningcss-light,#475569)var(--lightningcss-dark,#a0a3bd);--header-height:80px;--tag-noun:#6366f1;--tag-noun-bg:#6366f11a;--tag-verb:#22c55e;--tag-verb-bg:#22c55e1a;--tag-adjective:#f97316;--tag-adjective-bg:#f973161a;--tag-adverb:#ef4444;--tag-adverb-bg:#ef44441a;--blur-6:6px;--blur-8:8px;--blur-12:12px;--blur-16:16px;--glass-bg-light:#ffffffb3;--glass-bg-dark:#0009}@media (prefers-color-scheme:dark){:root{--lightningcss-light: ;--lightningcss-dark:initial}}html,body{width:100%;height:auto;min-height:100%;margin:0;padding:0;position:relative;overflow-x:clip}body{color:var(--text);line-height:1.6;font-family:var(--font-sans);background-color:var(--lightningcss-light,#f0fdfa)var(--lightningcss-dark,#0a0a0f);flex-direction:column;min-height:100vh;display:flex}.container{max-width:1280px;margin:0 auto;padding:0 2rem}section{padding:5rem 0}h1,h2,h3{letter-spacing:-.02em;font-weight:700;line-height:1.2}h1{font-size:clamp(2.5rem,5vw,4rem)}h2{margin-bottom:2rem;font-size:clamp(2rem,4vw,3rem)}h3{font-size:1.5rem}.section-title{text-align:center;background:linear-gradient(135deg, var(--primary), var(--accent));-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text;margin-bottom:4rem;position:relative}.section-title:after{content:"";background:linear-gradient(90deg, var(--primary), var(--accent));border-radius:4px;width:80px;height:4px;margin:1.5rem auto 0;display:block}.site-header{background:var(--lightningcss-light,var(--glass-bg-light))var(--lightningcss-dark,var(--glass-bg-dark));-webkit-backdrop-filter:blur(var(--blur-12));box-shadow:var(--shadow-3);z-index:1000;will-change:transform;border-bottom:1px solid var(--lightningcss-light,#fff3)var(--lightningcss-dark,#ffffff0d);width:100%;transition:all .3s;position:sticky;top:0;left:0;right:0;transform:translateZ(0)}.site-header.scrolled{-webkit-backdrop-filter:blur(var(--blur-16));box-shadow:var(--shadow-4);background:var(--lightningcss-light,#ffffffd9)var(--lightningcss-dark,#000c)}.nav-bar{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:1rem;padding:1rem 0;display:flex}.logo{background:linear-gradient(135deg, var(--primary), var(--accent));-webkit-text-fill-color:transparent;letter-spacing:-.02em;-webkit-background-clip:text;font-size:2rem;font-weight:800}.nav-menu{flex-wrap:wrap;gap:2rem;padding:0;list-style:none;display:flex}.nav-menu a{color:var(--text);border-bottom:2px solid #0000;padding:.5rem 0;font-size:1rem;font-weight:500;text-decoration:none;transition:all .2s}.nav-menu a:hover,.nav-menu a.active{border-bottom-color:var(--primary);color:var(--primary)}.site-footer{background:var(--lightningcss-light,#fff)var(--lightningcss-dark,#1e1e2e);border-top:1px solid var(--lightningcss-light,#e2e8f0)var(--lightningcss-dark,#2d2d3a);margin-top:4rem;padding:4rem 0}.footer-content{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:1.5rem;display:flex}.footer-nav{flex-wrap:wrap;gap:2rem;display:flex}.footer-nav a{color:var(--text-muted);text-decoration:none;transition:color .2s}.footer-nav a:hover{color:var(--primary)}.button{cursor:pointer;border:none;border-radius:100px;justify-content:center;align-items:center;gap:.75rem;padding:.875rem 2rem;font-size:1rem;font-weight:600;line-height:1;text-decoration:none;transition:all .2s;display:inline-flex}.button-primary{background:linear-gradient(135deg, var(--primary), var(--accent));color:#fff;box-shadow:0 4px 12px #14b8a64d}.button-primary:hover{transform:translateY(-2px);box-shadow:0 8px 20px #14b8a666}.button-secondary{color:var(--text);background:var(--lightningcss-light,#e2e8f0)var(--lightningcss-dark,#2d2d3a)}.button-secondary:hover{background:var(--lightningcss-light,#cbd5e1)var(--lightningcss-dark,#3d3d4a);transform:translateY(-2px)}.hero-section{background:radial-gradient(circle at 70%,var(--lightningcss-light,#14b8a60d)var(--lightningcss-dark,#14b8a61a),#0000);padding:6rem 0;position:relative;overflow:hidden}.hero-flex-container{align-items:center;gap:3rem;margin-top:2rem;display:flex}.hero-image{flex:none;width:40%}.hero-image img{border:4px solid var(--primary);border-radius:50%;width:70%;height:auto;transition:all .3s;box-shadow:0 20px 40px #14b8a633}.hero-image img:hover{border-color:var(--accent);transform:scale(1.02);box-shadow:0 30px 60px #14b8a64d}.hero-cards-container{flex-direction:column;flex:1;gap:1.5rem;display:flex}.hero-card{background:var(--surface);text-align:left;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid var(--lightningcss-light,#0000000d)var(--lightningcss-dark,#ffffff0d);border-radius:24px;align-items:center;gap:1.5rem;padding:1.8rem;transition:all .3s;display:flex;box-shadow:0 10px 30px var(--lightningcss-light,#0000000d)var(--lightningcss-dark,#0000004d)}.hero-card:hover{border-color:var(--primary-light);transform:translate(5px);box-shadow:0 20px 40px #14b8a633}.hero-card i{color:var(--primary);flex:none;font-size:2.5rem}.hero-card-content{flex:1}.hero-card h3{margin:0 0 .5rem;font-size:1.3rem}.hero-card p{color:var(--text-muted);margin:0;font-size:1rem;line-height:1.5}.hero-title{background:linear-gradient(135deg, var(--primary), var(--accent));-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text;margin-bottom:1.5rem}.hero-subtitle{color:var(--text-muted);margin:1.5rem 0 2rem;font-size:1.25rem;line-height:1.6}.features-grid{grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:2rem;display:grid}.feature-card{background:var(--surface);text-align:center;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid var(--lightningcss-light,#0000000d)var(--lightningcss-dark,#ffffff0d);border-radius:24px;padding:2.5rem 2rem;transition:all .3s;box-shadow:0 10px 30px var(--lightningcss-light,#0000000d)var(--lightningcss-dark,#0000004d)}.feature-card:hover{border-color:var(--primary-light);transform:translateY(-8px);box-shadow:0 20px 40px var(--lightningcss-light,#0000001a)var(--lightningcss-dark,#00000080)}.feature-card i{color:var(--primary);margin-bottom:1.5rem;font-size:3rem}.feature-card h3{margin:1rem 0 .75rem}.feature-card p{color:var(--text-muted);line-height:1.6}.contact-grid{grid-template-columns:1fr 1fr;gap:4rem;display:grid}.contact-form{background:var(--surface);border:1px solid var(--lightningcss-light,#0000000d)var(--lightningcss-dark,#ffffff0d);border-radius:32px;padding:2.5rem;box-shadow:0 20px 40px var(--lightningcss-light,#0000000d)var(--lightningcss-dark,#0000004d)}.field{margin-bottom:1.5rem}.label{color:var(--text);margin-bottom:.5rem;font-size:.95rem;font-weight:600;display:block}.input,.textarea,.select{background-color:var(--surface);width:100%;color:var(--text);border:2px solid var(--lightningcss-light,#e2e8f0)var(--lightningcss-dark,#2d2d3a);border-radius:16px;padding:1rem;font-family:inherit;font-size:1rem;transition:all .2s}.input:focus,.textarea:focus,.select:focus{border-color:var(--primary);outline:none;box-shadow:0 0 0 4px #14b8a61a}.select{appearance:none;background-image:url("data:image/svg+xml;utf8,<svg xmlns=\"http://www.w3.org/2000/svg\" width=\"16\" height=\"16\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"><polyline points=\"6 9 12 15 18 9\"/></svg>");background-position:right 1rem center;background-repeat:no-repeat;background-size:1rem}.checkbox-field{align-items:center;gap:.5rem;display:flex}.checkbox{cursor:pointer;align-items:center;gap:.5rem;display:flex}.checkbox input{cursor:pointer;width:1.2rem;height:1.2rem}.contact-info{background:var(--surface-soft);border:1px solid var(--lightningcss-light,#0000000d)var(--lightningcss-dark,#ffffff0d);border-radius:32px;padding:2.5rem}.contact-info h3{margin-top:0;margin-bottom:1.5rem;font-size:1.8rem}.contact-info p{color:var(--text);align-items:center;gap:1rem;margin:1.25rem 0;display:flex}.contact-info i{width:24px;color:var(--primary)}.social-links{gap:1.5rem;margin:2rem 0;display:flex}.social-links a{color:var(--text-muted);transition:all .2s}.social-links a:hover{color:var(--primary);transform:translateY(-3px)}.accordion{max-width:800px;margin:0 auto}.accordion-item{background:var(--surface);border:1px solid var(--lightningcss-light,#0000000d)var(--lightningcss-dark,#ffffff0d);border-radius:24px;margin-bottom:1rem;overflow:hidden;box-shadow:0 4px 12px var(--lightningcss-light,#0000000d)var(--lightningcss-dark,#0000004d)}.accordion-header{cursor:pointer;background:var(--surface);padding:1.5rem 2rem;font-size:1.1rem;font-weight:600;list-style:none;transition:background .2s;position:relative}.accordion-header:hover{background:var(--surface-soft)}.accordion-header::-webkit-details-marker{display:none}.accordion-header:after{content:"+";color:var(--primary);font-size:1.5rem;font-weight:300;transition:transform .3s;position:absolute;right:2rem}details[open] .accordion-header:after{content:"−";transform:rotate(360deg)}.accordion-body{color:var(--text-muted);border-top:1px solid var(--lightningcss-light,#e2e8f0)var(--lightningcss-dark,#2d2d3a);padding:0 2rem 1.5rem;line-height:1.6}.vocabulary-table{border-collapse:collapse;background:var(--surface);border:1px solid var(--lightningcss-light,#0000000d)var(--lightningcss-dark,#ffffff0d);border-radius:32px;width:100%;overflow:hidden;box-shadow:0 20px 40px var(--lightningcss-light,#0000000d)var(--lightningcss-dark,#0000004d)}.vocabulary-table th{background:var(--surface-soft);text-align:left;color:var(--text-muted);border-bottom:2px solid var(--lightningcss-light,#e2e8f0)var(--lightningcss-dark,#2d2d3a);padding:1.25rem 1rem;font-size:.95rem;font-weight:600}.vocabulary-table td{color:var(--text);border-bottom:1px solid var(--lightningcss-light,#e2e8f0)var(--lightningcss-dark,#2d2d3a);padding:1.25rem 1rem}.vocabulary-table tr:hover{background:var(--surface-soft)}.tag{text-align:center;border-radius:100px;min-width:100px;padding:.25rem 1rem;font-size:.875rem;font-weight:500;display:inline-block}.tag-noun{background:var(--tag-noun-bg);color:var(--tag-noun)}.tag-verb{background:var(--tag-verb-bg);color:var(--tag-verb)}.tag-adjective{background:var(--tag-adjective-bg);color:var(--tag-adjective)}.tag-adverb{background:var(--tag-adverb-bg);color:var(--tag-adverb)}.verb-group{background:var(--surface);border:1px solid var(--lightningcss-light,#e2e8f0)var(--lightningcss-dark,#2d2d3a);border-radius:32px;margin-bottom:1.5rem;padding:1.5rem;box-shadow:0 20px 40px var(--lightningcss-light,#0000000d)var(--lightningcss-dark,#0000004d)}.verb-group h3{color:var(--primary);align-items:center;gap:.5rem;margin-top:0;margin-bottom:1rem;font-size:1.3rem;display:flex}.vocabulary-tabs{flex-wrap:wrap;justify-content:center;gap:1rem;margin-bottom:2rem;display:flex}.tab-btn{background:var(--surface);color:var(--text);cursor:pointer;border:1px solid var(--lightningcss-light,#e2e8f0)var(--lightningcss-dark,#2d2d3a);border-radius:100px;padding:1rem 2rem;font-weight:600;transition:all .2s}.tab-btn:hover{transform:translateY(-2px);box-shadow:0 4px 12px #14b8a633}.tab-btn.active{background:linear-gradient(135deg, var(--primary), var(--accent));color:#fff;border:none}.vocabulary-section{animation:.3s ease-in-out fadeIn;display:none}.vocabulary-section.active{display:block}.search-bar{gap:.5rem;margin-bottom:1.5rem;display:flex}.flashcard:hover .front{transform:translateY(-4px);box-shadow:0 20px 40px var(--lightningcss-light,#0000001a)var(--lightningcss-dark,#00000080)}.flashcard-wrapper{transition:all .3s}.filter-btn{background:var(--surface);color:var(--text);cursor:pointer;border:1px solid var(--lightningcss-light,#e2e8f0)var(--lightningcss-dark,#2d2d3a);border-radius:100px;padding:.75rem 1.5rem;font-weight:500;transition:all .2s}.filter-btn.button-primary{background:linear-gradient(135deg, var(--primary), var(--accent));color:#fff;border:none}.filter-btn:hover{transform:translateY(-2px);box-shadow:0 4px 12px #14b8a633}.error-page-body{background:radial-gradient(circle,var(--lightningcss-light,#fff)var(--lightningcss-dark,#1e1e2e),var(--lightningcss-light,#f0fdfa)var(--lightningcss-dark,#0a0a0f));justify-content:center;align-items:center;min-height:100vh;display:flex}.error-main{width:100%;padding:2rem}.error-container{text-align:center;max-width:600px;margin:0 auto}.error-code{background:linear-gradient(135deg, var(--primary), var(--accent));-webkit-text-fill-color:transparent;-webkit-background-clip:text;margin-bottom:1rem;font-size:clamp(6rem,20vw,12rem);font-weight:900;line-height:1;animation:2s ease-in-out infinite pulse}.error-title{margin:1rem 0;font-size:2.5rem}.error-message{color:var(--text-muted);margin-bottom:2.5rem;font-size:1.2rem}.error-actions{flex-wrap:wrap;justify-content:center;gap:1rem;margin-bottom:2rem;display:flex}.error-nav{margin-top:2rem}.error-nav a{color:var(--text-muted);margin:0 .75rem;text-decoration:none;transition:color .2s}.error-nav a:hover{color:var(--primary)}.page-header{text-align:center;width:100%;padding:2rem 0 1rem}.page-header .container{text-align:center;max-width:1280px;margin:0 auto;padding:0 2rem}.page-header h1{text-align:center;width:100%;margin:0 auto;font-size:clamp(2rem,4vw,3rem)}.page-header p{text-align:center;width:100%;margin:.5rem auto 0}.contact-page-section,.faq-section,.lessons-section,.flashcards-section{padding-top:0!important}.notification{background:var(--surface);border-left:4px solid var(--primary);border-radius:24px;margin-top:2rem;padding:1.5rem}.notification p{text-align:center;margin:0}.notification i{color:var(--primary);margin-right:1rem}.stats-grid{text-align:center;flex-wrap:wrap;justify-content:space-around;gap:3rem;display:flex}.stat-number{background:linear-gradient(135deg, var(--primary), var(--accent));-webkit-text-fill-color:transparent;-webkit-background-clip:text;font-size:4rem;font-weight:800}.stat-label{color:var(--text-muted);font-size:1.25rem}.action-buttons{flex-wrap:wrap;justify-content:center;gap:1.5rem;display:flex}.action-btn{min-width:160px}.menu-toggle{cursor:pointer;z-index:110;background:0 0;border:none;width:30px;height:24px;padding:0;display:none;position:relative}.menu-toggle span{background:var(--text);border-radius:3px;width:100%;height:3px;transition:all .3s;display:block;position:absolute;left:0}.menu-toggle span:first-child{top:0}.menu-toggle span:nth-child(2){top:50%;transform:translateY(-50%)}.menu-toggle span:nth-child(3){bottom:0}.menu-toggle.active span:first-child{background:var(--primary);top:10px;transform:rotate(45deg)}.menu-toggle.active span:nth-child(2){opacity:0;transform:translate(-20px)}.menu-toggle.active span:nth-child(3){background:var(--primary);bottom:11px;transform:rotate(-45deg)}.overlay{-webkit-backdrop-filter:blur(5px);z-index:98;opacity:0;visibility:hidden;background:#000000b3;width:100%;height:100%;transition:opacity .3s,visibility .3s;display:none;position:fixed;top:0;left:0}.overlay.active{opacity:1;visibility:visible;display:block}body.menu-open{width:100%;height:100%;position:relative;overflow:hidden}body.menu-open .site-header{z-index:1000;width:100%;position:fixed;top:0;left:0;right:0}body.menu-open main{padding-top:var(--header-height)}*{box-sizing:border-box;max-width:100%}img,video,iframe,table,pre,code{max-width:100%;height:auto}.vocabulary-table,.tense-table,.verb-group table{white-space:nowrap;display:block;overflow-x:auto}@media (width>=768px){.vocabulary-table,.tense-table,.verb-group table{white-space:normal;display:table}}@media (width<=992px){.container{padding:0 1.5rem}section{padding:4rem 0}.site-header{z-index:1000;width:100%;-webkit-backdrop-filter:blur(var(--blur-8));background:var(--lightningcss-light,#ffffffbf)var(--lightningcss-dark,#000000a6);position:sticky;top:0}.site-header.scrolled{-webkit-backdrop-filter:blur(var(--blur-12));background:var(--lightningcss-light,#ffffffd9)var(--lightningcss-dark,#000000bf)}.nav-bar{padding:.75rem 0}.logo{z-index:101;font-size:1.5rem}.menu-toggle{z-index:101;display:flex}.nav-menu{width:100%;max-width:100%;height:100vh;-webkit-backdrop-filter:blur(var(--blur-16));box-shadow:none;z-index:99;opacity:1;visibility:visible;pointer-events:none;background:var(--lightningcss-light,#ffffffe6)var(--lightningcss-dark,#000000d9);border:none;border-radius:0;flex-direction:column;justify-content:center;align-items:center;gap:1rem;padding:5rem 2rem;transition:transform .3s cubic-bezier(.4,0,.2,1);position:fixed;inset:0;overflow-y:auto;transform:translate(100%)}.nav-menu.active{pointer-events:all;transform:translate(0)}.nav-menu li{width:100%;max-width:100vh;max-height:2.6rem;margin:.5rem 0;list-style:none}.nav-menu a{text-align:center;background:var(--surface-soft);color:var(--text);border:1px solid var(--lightningcss-light,#0000001a)var(--lightningcss-dark,#ffffff1a);border-bottom:none;border-radius:50px;padding:1rem 2rem;font-size:1.2rem;font-weight:600;text-decoration:none;transition:all .2s;display:block}.nav-menu a:hover,.nav-menu a.active{background:linear-gradient(135deg, var(--primary), var(--accent));color:#fff;border-color:#0000;transform:translateY(-2px);box-shadow:0 8px 20px #14b8a64d}.hero-grid,.about-grid,.contact-grid{grid-template-columns:1fr;gap:2rem}.footer-content{text-align:center;flex-direction:column}.footer-nav{justify-content:center}h1{font-size:2.5rem}h2{font-size:2rem}.contact-form,.contact-info{padding:1.5rem}.page-header{padding:1rem 0 .5rem}.section-title{margin-bottom:2rem}.hero-section{padding:3rem 0}}@media (width<=768px){.hero-flex-container{flex-direction:column;gap:2rem}.hero-image{order:-1;width:60%}.hero-cards-container{width:100%}.hero-card{gap:1rem;padding:1.5rem}.hero-card i{font-size:2rem}.hero-card h3{font-size:1.1rem}.hero-card p{font-size:.9rem}.flashcard{height:250px}.vocabulary-table{font-size:.9rem}.vocabulary-table th,.vocabulary-table td{padding:.75rem}.tag{min-width:80px;padding:.2rem .5rem;font-size:.8rem}.verb-group{padding:1rem}}@media screen and (width<=480px){.container{padding:0 1rem}.site-header{-webkit-backdrop-filter:blur(var(--blur-6));background:var(--lightningcss-light,#fffc)var(--lightningcss-dark,#000000b3)}.nav-menu{padding:4rem 1.5rem}.nav-menu a{padding:.8rem 1.5rem;font-size:1rem}.hero-image{width:80%;max-width:80%;margin:0 auto}.hero-card{padding:1.2rem}.hero-card i{font-size:1.8rem}.action-buttons{gap:1rem}.action-btn{min-width:140px;padding:.75rem 1rem}}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-20px)}}@keyframes pulse{0%,to{transform:scale(1)}50%{transform:scale(1.05)}}@keyframes fadeIn{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.input.is-error:focus,.textarea.is-error:focus,.select.is-error:focus{border-color:var(--tag-adverb);box-shadow:0 0 0 4px #ef444433}.checkbox-error{color:var(--tag-adverb);margin-top:.25rem;margin-left:1.8rem;font-size:.875rem}.field{position:relative}.app{flex-direction:column;min-height:100vh;display:flex}main{flex:1}.fade-in{animation:.5s ease-out fadeIn}.nav-menu a.active{border-bottom-color:var(--primary);color:var(--primary)}.flashcard{cursor:pointer;perspective:1000px;height:280px;transform-style:preserve-3d;transition:transform .3s;position:relative}.flashcard .front,.flashcard .back{backface-visibility:hidden;text-align:center;background:var(--surface);border:1px solid var(--lightningcss-light,#0000000d)var(--lightningcss-dark,#ffffff0d);border-radius:32px;flex-direction:column;justify-content:center;align-items:center;width:100%;height:100%;padding:25px;display:flex;position:absolute;box-shadow:0 10px 30px var(--lightningcss-light,#0000000d)var(--lightningcss-dark,#0000004d)}.flashcard .back{background:linear-gradient(135deg, var(--primary), var(--accent));color:#fff;transform:rotateY(180deg)}.flashcard .back .title,.flashcard .back p{color:#fff}.flashcard.flipped{transform:rotateY(180deg)}.flashcard-wrapper{transition:all .3s;position:relative}.input.is-error,.textarea.is-error,.select.is-error{border-color:var(--tag-adverb);box-shadow:0 0 0 3px #ef44441a}.error-message{color:var(--tag-adverb);margin-top:.25rem;font-size:.875rem;display:block}.success-message{color:#22c55e;text-align:center;background:#22c55e1a;border-left:4px solid #22c55e;border-radius:12px;margin-top:1rem;padding:1rem}