/* ── Reset & Base ─────────────────────────── */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;font-size:16px}
body{
  font-family:'Inter',system-ui,-apple-system,sans-serif;
  background:#0A0F1E;color:#F1F5F9;
  min-height:100vh;overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit}
button{font-family:inherit;cursor:pointer;border:none;background:none}

/* ── CSS Variables ────────────────────────── */
:root{
  --violet:#8B5CF6;--violet-d:#7C3AED;
  --cyan:#06B6D4;--emerald:#10B981;
  --orange:#F97316;--amber:#F59E0B;
  --red:#EF4444;--pink:#EC4899;
  --bg:#0A0F1E;--card:#111827;--card2:#1F2937;
  --border:rgba(255,255,255,.08);
  --text:#F1F5F9;--muted:#94A3B8;--dim:#64748B;
  --radius-sm:12px;--radius:16px;--radius-lg:24px;--radius-xl:32px;
}

/* ── Scrollbar ────────────────────────────── */
::-webkit-scrollbar{width:5px}
::-webkit-scrollbar-track{background:var(--card)}
::-webkit-scrollbar-thumb{background:#374151;border-radius:3px}

/* ── Utilities ────────────────────────────── */
.container{max-width:1140px;margin:0 auto;padding:0 20px}
.gradient-text{
  background:linear-gradient(135deg,var(--violet),var(--cyan),var(--emerald));
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;
}
.glass{background:rgba(255,255,255,.04);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border:1px solid var(--border)}
.card{background:rgba(17,24,39,.85);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border:1px solid var(--border);border-radius:var(--radius-lg)}
.btn-primary{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:var(--radius);font-weight:700;font-size:1rem;color:#fff;
  background:linear-gradient(135deg,var(--violet-d),var(--cyan));
  transition:transform .2s,box-shadow .2s;white-space:nowrap;
}
.btn-primary:hover{transform:translateY(-2px) scale(1.02);box-shadow:0 16px 48px rgba(139,92,246,.4)}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:var(--radius);font-weight:600;font-size:1rem;
  color:var(--muted);border:1px solid var(--border);background:rgba(255,255,255,.04);
  transition:color .2s,background .2s,transform .2s;
}
.btn-ghost:hover{color:#fff;background:rgba(255,255,255,.08);transform:translateY(-1px)}
.section-label{
  display:inline-block;font-size:.75rem;font-weight:700;letter-spacing:.1em;
  text-transform:uppercase;color:var(--violet);background:rgba(139,92,246,.15);
  border:1px solid rgba(139,92,246,.3);padding:5px 14px;border-radius:100px;margin-bottom:18px;
}
.section-title{font-size:clamp(1.8rem,4vw,2.8rem);font-weight:900;line-height:1.15;margin-bottom:14px}
.section-sub{font-size:1.05rem;color:var(--muted);max-width:580px;line-height:1.7}

/* ── Animations ───────────────────────────── */
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-10px)}}
@keyframes glow-pulse{0%,100%{opacity:.6}50%{opacity:1}}
@keyframes fade-up{from{opacity:0;transform:translateY(28px)}to{opacity:1;transform:translateY(0)}}
@keyframes streak{0%,100%{transform:rotate(-4deg) scale(1)}50%{transform:rotate(4deg) scale(1.1)}}
@keyframes spin{to{transform:rotate(360deg)}}
@keyframes shimmer{0%{background-position:-200% 0}100%{background-position:200% 0}}
@keyframes bar-fill{from{width:0}to{width:var(--w)}}
.animate-float{animation:float 3.5s ease-in-out infinite}
.animate-glow{animation:glow-pulse 2.5s ease-in-out infinite}
.fade-up{opacity:0;transform:translateY(28px);transition:opacity .65s ease,transform .65s ease}
.fade-up.visible{opacity:1;transform:translateY(0)}

/* ── Orbs ─────────────────────────────────── */
.orb{position:absolute;border-radius:50%;pointer-events:none;filter:blur(80px)}
.orb-violet{background:rgba(139,92,246,.25);width:500px;height:500px}
.orb-cyan{background:rgba(6,182,212,.2);width:400px;height:400px}
.orb-emerald{background:rgba(16,185,129,.15);width:350px;height:350px}

/* ═══════════════════════════════════════════
   NAV
═══════════════════════════════════════════ */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:100;
  padding:12px 16px;
}
.nav-inner{
  max-width:1140px;margin:0 auto;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  background:rgba(17,24,39,.85);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border:1px solid var(--border);border-radius:var(--radius);
  padding:10px 20px;
}
.nav-logo{display:flex;align-items:center;gap:10px}
.nav-logo-icon{
  width:34px;height:34px;border-radius:10px;
  background:linear-gradient(135deg,var(--violet),var(--cyan));
  display:flex;align-items:center;justify-content:center;
  font-weight:900;font-size:.9rem;color:#fff;flex-shrink:0;
}
.nav-logo-text{font-weight:800;font-size:1.1rem}
.nav-links{display:flex;align-items:center;gap:24px}
.nav-links a{font-size:.9rem;font-weight:500;color:var(--muted);transition:color .2s}
.nav-links a:hover{color:#fff}
.nav-cta{display:flex;align-items:center;gap:8px}
.nav-login{font-size:.9rem;color:var(--muted);padding:8px 14px;transition:color .2s;font-weight:500}
.nav-login:hover{color:#fff}
.nav-register{
  padding:8px 16px;border-radius:10px;
  background:var(--violet-d);color:#fff;font-size:.85rem;font-weight:700;
  transition:background .2s,transform .15s;
}
.nav-register:hover{background:var(--violet);transform:scale(1.03)}
@media(max-width:768px){
  .nav-links,.nav-login{display:none}
  .nav-register{padding:7px 13px}
}

/* ═══════════════════════════════════════════
   HERO
═══════════════════════════════════════════ */
.hero{
  min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;
  text-align:center;padding:100px 20px 60px;position:relative;overflow:hidden;
}
.hero .orb-violet{top:-80px;left:calc(50% - 400px)}
.hero .orb-cyan{top:100px;right:calc(50% - 400px)}
.hero .orb-emerald{bottom:0;left:50%;transform:translateX(-50%)}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 16px;border-radius:100px;background:rgba(139,92,246,.12);
  border:1px solid rgba(139,92,246,.3);font-size:.8rem;color:#C4B5FD;
  margin-bottom:28px;
}
.hero-badge-dot{width:7px;height:7px;border-radius:50%;background:#10B981;animation:glow-pulse 2s infinite}
.hero-mascot{font-size:5rem;margin-bottom:20px;display:block}
.hero h1{
  font-size:clamp(2.4rem,7vw,5rem);font-weight:900;line-height:1.1;
  margin-bottom:20px;letter-spacing:-.02em;
}
.hero p{
  font-size:clamp(1rem,2.5vw,1.2rem);color:var(--muted);
  max-width:520px;margin:0 auto 36px;line-height:1.7;
}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;margin-bottom:52px}
.hero-stats{
  display:grid;grid-template-columns:repeat(4,auto);gap:32px;
}
.hero-stat p:first-child{font-size:1.5rem;font-weight:900}
.hero-stat p:last-child{font-size:.75rem;color:var(--muted);margin-top:2px}
@media(max-width:600px){
  .hero-stats{grid-template-columns:repeat(2,1fr);gap:20px}
  .hero-cta .btn-primary,.hero-cta .btn-ghost{width:100%;max-width:340px}
}

/* ═══════════════════════════════════════════
   SECTION WRAPPER
═══════════════════════════════════════════ */
section{padding:90px 0;position:relative}
.section-center{text-align:center;margin-bottom:52px}

/* ═══════════════════════════════════════════
   LANGUAGES
═══════════════════════════════════════════ */
.languages-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.lang-card{
  border-radius:var(--radius-lg);overflow:hidden;
  transition:transform .25s,box-shadow .25s;
  cursor:pointer;
}
.lang-card:hover{transform:translateY(-6px);box-shadow:0 20px 60px rgba(0,0,0,.4)}
.lang-card-inner{background:rgba(17,24,39,.9);border:1px solid var(--border);border-radius:var(--radius-lg);padding:28px}
.lang-strip{height:4px;border-radius:4px;margin-bottom:24px}
.lang-flag{font-size:3rem;margin-bottom:12px}
.lang-name{font-size:1.4rem;font-weight:800;margin-bottom:10px}
.lang-tags{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-bottom:10px}
.lang-tag{padding:3px 10px;border-radius:8px;font-size:.72rem;font-weight:700;background:rgba(16,185,129,.2);color:#6EE7B7}
.lang-speakers{font-size:.82rem;color:var(--dim)}
.lang-levels{font-size:.85rem;color:var(--muted);margin-bottom:16px}
.lang-link{font-size:.85rem;font-weight:700;color:var(--violet);display:flex;align-items:center;gap:6px;transition:gap .2s}
.lang-card:hover .lang-link{gap:12px}
@media(max-width:768px){.languages-grid{grid-template-columns:1fr}}

/* ═══════════════════════════════════════════
   FEATURES
═══════════════════════════════════════════ */
#features{background:linear-gradient(180deg,transparent,rgba(139,92,246,.04),transparent)}
.features-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.feat-card{
  border-radius:var(--radius);padding:24px;
  background:rgba(17,24,39,.8);border:1px solid var(--border);
  transition:border-color .25s,transform .25s;
}
.feat-card:hover{transform:translateY(-3px);border-color:var(--feat-color,var(--violet))}
.feat-icon{
  width:48px;height:48px;border-radius:14px;
  display:flex;align-items:center;justify-content:center;font-size:1.4rem;
  margin-bottom:16px;
}
.feat-title{font-weight:800;font-size:.98rem;margin-bottom:6px;color:#fff}
.feat-desc{font-size:.85rem;color:var(--muted);line-height:1.6}
@media(max-width:900px){.features-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:580px){.features-grid{grid-template-columns:1fr}}

/* ═══════════════════════════════════════════
   HOW IT WORKS
═══════════════════════════════════════════ */
.steps{display:flex;flex-direction:column;gap:16px;max-width:700px;margin:0 auto}
.step-card{
  display:flex;align-items:flex-start;gap:20px;
  padding:22px 24px;background:rgba(17,24,39,.8);
  border:1px solid var(--border);border-radius:var(--radius);
}
.step-icon{
  width:52px;height:52px;border-radius:14px;flex-shrink:0;
  display:flex;align-items:center;justify-content:center;font-size:1.5rem;
}
.step-meta{display:flex;align-items:center;gap:8px;margin-bottom:4px;flex-wrap:wrap}
.step-num{font-size:.68rem;font-weight:800;padding:3px 8px;border-radius:6px;letter-spacing:.08em}
.step-title{font-weight:800;font-size:.95rem;color:#fff}
.step-desc{font-size:.85rem;color:var(--muted);line-height:1.65}

/* ═══════════════════════════════════════════
   STATS BAND
═══════════════════════════════════════════ */
.stats-band{background:rgba(139,92,246,.06);border-top:1px solid var(--border);border-bottom:1px solid var(--border);padding:50px 0}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;text-align:center}
.stat-val{font-size:2.2rem;font-weight:900;margin-bottom:4px}
.stat-label{font-size:.8rem;color:var(--muted)}
@media(max-width:600px){.stats-grid{grid-template-columns:repeat(2,1fr)}}

/* ═══════════════════════════════════════════
   TESTIMONIALS
═══════════════════════════════════════════ */
.testi-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.testi-card{
  padding:24px;background:rgba(17,24,39,.85);
  border:1px solid var(--border);border-radius:var(--radius);
  display:flex;flex-direction:column;
}
.testi-header{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.testi-avatar{
  width:40px;height:40px;border-radius:50%;flex-shrink:0;
  background:linear-gradient(135deg,var(--violet-d),var(--cyan));
  display:flex;align-items:center;justify-content:center;
  font-weight:800;color:#fff;font-size:.95rem;
}
.testi-name{font-weight:700;font-size:.9rem;color:#fff}
.testi-role{font-size:.75rem;color:var(--dim)}
.testi-score{
  margin-left:auto;padding:3px 10px;border-radius:8px;
  background:rgba(16,185,129,.2);color:#6EE7B7;font-size:.72rem;font-weight:700;white-space:nowrap;
}
.testi-text{font-size:.88rem;color:var(--muted);line-height:1.7;flex:1}
.testi-stars{margin-top:14px;color:#F59E0B;font-size:.85rem;letter-spacing:1px}
@media(max-width:900px){.testi-grid{grid-template-columns:1fr}}
@media(min-width:600px) and (max-width:900px){.testi-grid{grid-template-columns:repeat(2,1fr)}}

/* ═══════════════════════════════════════════
   EXERCISE PREVIEW
═══════════════════════════════════════════ */
.preview{padding:90px 0;overflow:hidden}
.preview-inner{
  display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;
}
.preview-text .section-label{display:block;width:max-content}
.preview-list{list-style:none;margin-top:24px;display:flex;flex-direction:column;gap:12px}
.preview-list li{
  display:flex;align-items:center;gap:12px;
  padding:12px 16px;background:rgba(17,24,39,.8);
  border:1px solid var(--border);border-radius:var(--radius-sm);
  font-size:.9rem;color:var(--muted);transition:border-color .2s;
}
.preview-list li:hover{border-color:var(--violet)}
.preview-list li span:first-child{font-size:1.2rem;flex-shrink:0}
.preview-phone{
  position:relative;display:flex;justify-content:center;
}
.phone-wrap{
  width:260px;background:rgba(17,24,39,.95);border:1px solid var(--border);
  border-radius:28px;padding:20px;box-shadow:0 40px 100px rgba(0,0,0,.5);
  transform:perspective(800px) rotateY(-8deg) rotateX(4deg);
  transition:transform .4s;
}
.phone-wrap:hover{transform:perspective(800px) rotateY(-3deg) rotateX(1deg)}
.phone-notch{width:70px;height:6px;background:var(--card2);border-radius:10px;margin:0 auto 14px}
.phone-exercise{background:var(--card2);border-radius:14px;padding:16px}
.phone-question{font-size:.78rem;font-weight:600;color:var(--muted);margin-bottom:10px}
.phone-word{font-size:1.5rem;text-align:center;font-weight:900;margin-bottom:14px;color:#fff}
.phone-opts{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.phone-opt{
  padding:9px;border-radius:10px;background:rgba(255,255,255,.05);
  border:1.5px solid var(--border);font-size:.76rem;color:var(--muted);
  text-align:center;transition:all .15s;cursor:pointer;
}
.phone-opt:hover{border-color:var(--violet);color:#fff;background:rgba(139,92,246,.1)}
.phone-opt.correct{border-color:#10B981;background:rgba(16,185,129,.15);color:#6EE7B7}
.phone-xp{
  display:flex;align-items:center;justify-content:center;gap:6px;
  margin-top:14px;padding:6px;background:rgba(245,158,11,.1);
  border-radius:8px;font-size:.75rem;font-weight:700;color:#F59E0B;
}
.phone-hearts{display:flex;gap:3px;justify-content:center;margin-bottom:10px;font-size:.85rem}
@media(max-width:768px){
  .preview-inner{grid-template-columns:1fr}
  .preview-phone{display:none}
}

/* ═══════════════════════════════════════════
   GAMIFICATION
═══════════════════════════════════════════ */
.gamif-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.gamif-card{
  text-align:center;padding:28px 16px;
  background:rgba(17,24,39,.8);border:1px solid var(--border);
  border-radius:var(--radius);transition:transform .25s,border-color .25s;
}
.gamif-card:hover{transform:translateY(-4px);border-color:rgba(139,92,246,.4)}
.gamif-icon{font-size:2.4rem;margin-bottom:12px}
.gamif-title{font-weight:800;font-size:.95rem;margin-bottom:6px;color:#fff}
.gamif-desc{font-size:.8rem;color:var(--muted);line-height:1.6}
@media(max-width:900px){.gamif-grid{grid-template-columns:repeat(2,1fr)}}

/* ═══════════════════════════════════════════
   PROGRESS DEMO
═══════════════════════════════════════════ */
.progress-demo{
  max-width:700px;margin:0 auto;
  background:rgba(17,24,39,.85);border:1px solid var(--border);
  border-radius:var(--radius-lg);padding:32px;
}
.progress-title{font-weight:800;font-size:1.1rem;color:#fff;margin-bottom:24px;text-align:center}
.level-row{display:flex;flex-direction:column;gap:6px;margin-bottom:20px}
.level-label{display:flex;justify-content:space-between;font-size:.85rem}
.level-name{font-weight:600;color:#fff}
.level-pct{color:var(--muted)}
.level-bar{height:10px;background:rgba(255,255,255,.07);border-radius:10px;overflow:hidden}
.level-fill{height:100%;border-radius:10px;--w:0%;animation:bar-fill 1.5s ease forwards;animation-play-state:paused}
.level-fill.played{animation-play-state:running}
.cefr-pills{display:flex;gap:6px;flex-wrap:wrap;margin-top:20px;justify-content:center}
.cefr-pill{
  padding:5px 14px;border-radius:100px;font-size:.78rem;font-weight:700;
  transition:all .2s;
}
.cefr-active{background:var(--violet-d);color:#fff}
.cefr-done{background:rgba(16,185,129,.25);color:#6EE7B7}
.cefr-locked{background:rgba(255,255,255,.06);color:var(--dim)}

/* ═══════════════════════════════════════════
   CTA
═══════════════════════════════════════════ */
.cta-section{padding:90px 0}
.cta-box{
  max-width:720px;margin:0 auto;text-align:center;
  background:rgba(17,24,39,.9);border:1px solid rgba(139,92,246,.25);
  border-radius:var(--radius-xl);padding:64px 40px;
  position:relative;overflow:hidden;
}
.cta-box::before{
  content:'';position:absolute;inset:0;
  background:linear-gradient(135deg,rgba(139,92,246,.12),rgba(6,182,212,.06));
  pointer-events:none;
}
.cta-mascot{font-size:4.5rem;margin-bottom:20px;display:block}
.cta-box h2{font-size:clamp(1.7rem,4vw,2.4rem);font-weight:900;margin-bottom:14px;line-height:1.2}
.cta-box p{font-size:1.05rem;color:var(--muted);margin-bottom:32px;line-height:1.7}
.cta-sub{font-size:.82rem;color:var(--dim);margin-top:16px}
@media(max-width:600px){.cta-box{padding:44px 22px}}

/* ═══════════════════════════════════════════
   FOOTER
═══════════════════════════════════════════ */
footer{border-top:1px solid var(--border);padding:36px 0}
.footer-inner{
  display:flex;flex-wrap:wrap;align-items:center;
  justify-content:space-between;gap:16px;
}
.footer-logo{display:flex;align-items:center;gap:8px}
.footer-logo-icon{
  width:26px;height:26px;border-radius:8px;
  background:linear-gradient(135deg,var(--violet),var(--cyan));
  display:flex;align-items:center;justify-content:center;
  font-weight:900;font-size:.7rem;color:#fff;
}
.footer-logo-text{font-weight:800;font-size:.95rem}
.footer-copy{font-size:.8rem;color:var(--dim)}
.footer-links{display:flex;gap:20px}
.footer-links a{font-size:.8rem;color:var(--dim);transition:color .2s}
.footer-links a:hover{color:#fff}
@media(max-width:600px){.footer-inner{flex-direction:column;text-align:center}.footer-links{justify-content:center}}

/* ═══════════════════════════════════════════
   MOBILE NAV BANNER
═══════════════════════════════════════════ */
.mobile-signup{
  display:none;position:fixed;bottom:0;left:0;right:0;
  background:rgba(17,24,39,.95);border-top:1px solid var(--border);
  padding:12px 20px calc(12px + env(safe-area-inset-bottom));
  z-index:90;backdrop-filter:blur(12px);
}
.mobile-signup a{width:100%;text-align:center}
@media(max-width:580px){.mobile-signup{display:block}}

/* ── Selection ────────────────────────────── */
::selection{background:rgba(139,92,246,.3);color:#fff}