/* =========================================================
   Lexora Education — Shared Design System
   Used by every page on the site. Edit here, it updates everywhere.
   ========================================================= */

:root{
  /* Brand colors */
  --navy-950:#0B0F1A;
  --navy-900:#10172B;
  --card-bg:#141C33;
  --card-border:#232E4E;
  --card-border-soft:#1B2340;

  --mint:#3DFFC0;
  --mint-dim:#2CC99A;
  --sky:#60D4F5;
  --amber:#FFB830;
  --lavender:#A78BFA;
  --coral:#FF6B6B;

  --text-primary:#F3F6FF;
  --text-secondary:#94A3C7;
  --text-muted:#5C6B93;

  /* Spacing scale */
  --sp-1:4px; --sp-2:8px; --sp-3:12px; --sp-4:16px; --sp-5:20px;
  --sp-6:24px; --sp-7:32px; --sp-8:40px; --sp-9:56px; --sp-10:72px; --sp-11:96px;

  /* Radius */
  --r-sm:10px; --r-md:14px; --r-lg:18px; --r-xl:22px; --r-pill:9999px;

  /* Layout */
  --w-page:1080px;
  --w-narrow:720px;
  --w-hero:600px;

  --header-h:72px;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--navy-950);
  color:var(--text-primary);
  font-family:'Nunito Sans', -apple-system, sans-serif;
  font-size:15.5px;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
a{color:var(--mint); text-decoration:none;}
h1,h2,h3,h4{font-family:'Nunito', -apple-system, sans-serif; letter-spacing:-0.01em; margin:0;}
img{max-width:100%;}
button{font-family:inherit;}

/* ---------- Header / Navigation ---------- */
.site-header{
  border-bottom:1px solid var(--card-border-soft);
  position:relative;
  z-index:50;
}
.header-inner{
  max-width:var(--w-page); margin:0 auto; padding:0 24px;
  height:var(--header-h);
  display:flex; align-items:center; justify-content:space-between; gap:20px;
}
.brand{display:flex; align-items:center; gap:10px;}
.brand-icon{width:30px; height:30px; border-radius:8px; display:block; flex-shrink:0;}
.brand-name{font-weight:800; font-size:15.5px; color:var(--text-primary); white-space:nowrap;}

.nav-desktop{display:flex; align-items:center; gap:30px;}
.nav-links{display:flex; align-items:center; gap:26px;}
.nav-links a{
  color:var(--text-secondary); font-size:13.5px; font-weight:700;
  padding:4px 1px; border-bottom:2px solid transparent;
}
.nav-links a:hover{color:var(--text-primary);}
.nav-links a.active{color:var(--text-primary); border-bottom-color:var(--mint);}

.lang-pill{
  font-size:12px; font-weight:800; color:var(--text-secondary);
  border:1px solid var(--card-border); border-radius:var(--r-pill);
  padding:6px 13px; white-space:nowrap;
}
.lang-pill:hover{border-color:var(--mint); color:var(--mint);}

.hamburger{
  display:none; width:40px; height:40px; border-radius:var(--r-sm);
  background:transparent; border:1px solid var(--card-border);
  cursor:pointer; align-items:center; justify-content:center; flex-direction:column; gap:4px;
  flex-shrink:0;
}
.hamburger span{
  width:16px; height:2px; background:var(--text-primary); border-radius:2px;
  transition:transform .2s ease, opacity .2s ease;
}
.hamburger.open span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.hamburger.open span:nth-child(2){opacity:0;}
.hamburger.open span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

.drawer-overlay{
  position:fixed; inset:0; background:rgba(11,15,26,0.65);
  opacity:0; pointer-events:none; transition:opacity .2s ease; z-index:60;
}
.drawer-overlay.open{opacity:1; pointer-events:auto;}

.drawer{
  position:fixed; top:0; right:0; height:100vh; width:min(300px,84vw);
  background:var(--card-bg); border-left:1px solid var(--card-border);
  z-index:70; transform:translateX(100%); transition:transform .25s ease;
  display:flex; flex-direction:column; padding:18px;
}
.drawer.open{transform:translateX(0);}
.drawer-head{display:flex; align-items:center; justify-content:space-between; margin-bottom:18px; padding:0 4px;}
.drawer-head .brand-name{font-size:14.5px;}
.drawer-close{
  width:34px; height:34px; border-radius:var(--r-sm); background:transparent;
  border:1px solid var(--card-border); color:var(--text-secondary); cursor:pointer;
  font-size:16px; line-height:1;
}
.drawer-nav{display:flex; flex-direction:column; gap:2px;}
.drawer-nav a{
  padding:13px 10px; color:var(--text-primary); font-weight:700; font-size:15px;
  border-bottom:1px solid var(--card-border-soft); border-radius:var(--r-sm);
}
.drawer-nav a:last-child{border-bottom:none;}
.drawer-nav a.active{color:var(--mint);}
.drawer-nav a:active{background:rgba(61,255,192,0.06);}
.drawer-foot{margin-top:auto; padding-top:16px; border-top:1px solid var(--card-border-soft);}
.drawer-lang{
  display:block; text-align:center; padding:12px; border-radius:var(--r-sm);
  border:1px solid var(--card-border); color:var(--text-secondary); font-weight:700; font-size:13.5px;
}

@media (max-width:860px){
  .nav-desktop{display:none;}
  .hamburger{display:flex;}
}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  font-family:'Nunito', sans-serif; font-weight:800; font-size:14px;
  border-radius:var(--r-md); padding:13px 24px; border:1.5px solid transparent;
  cursor:pointer;
}
.btn-primary{background:linear-gradient(135deg, var(--mint), var(--sky)); color:#0B0F1A;}
.btn-secondary{background:transparent; border-color:var(--card-border); color:var(--text-primary);}
.btn-secondary:hover{border-color:var(--text-muted);}

/* ---------- Kicker / eyebrow label ---------- */
.kicker{
  color:var(--mint); font-weight:800; font-size:12px; letter-spacing:0.08em;
  text-transform:uppercase; margin-bottom:12px;
}

/* ---------- Hero ---------- */
.hero{max-width:var(--w-hero); margin:var(--sp-10) auto var(--sp-9); padding:0 24px; text-align:center;}
.hero h1{
  font-weight:800; font-size:clamp(28px,4.6vw,40px); line-height:1.18; letter-spacing:-0.02em;
  margin:0 0 18px;
}
.hero h1 .grad{
  background:linear-gradient(120deg, var(--mint), var(--sky));
  -webkit-background-clip:text; background-clip:text; color:transparent;
}
.hero p{color:var(--text-secondary); font-size:16.5px; line-height:1.65; max-width:520px; margin:0 auto var(--sp-7);}
.cta-row{display:flex; gap:12px; justify-content:center; flex-wrap:wrap;}

/* ---------- Sections ---------- */
section{max-width:var(--w-page); margin:0 auto; padding:var(--sp-11) 24px;}
section.section-narrow{max-width:var(--w-narrow);}
section.alt{background:var(--navy-900); border-top:1px solid var(--card-border-soft); border-bottom:1px solid var(--card-border-soft);}
.section-head{max-width:560px; margin:0 auto var(--sp-8); text-align:center;}
.section-head h2{font-weight:800; font-size:clamp(22px,3.4vw,28px); margin:0 0 10px;}
.section-head p{color:var(--text-secondary); margin:0; font-size:15.5px;}

/* Page header (used by non-hero pages: about, contact, legal) */
.page-head{max-width:620px; margin:var(--sp-10) auto var(--sp-2); padding:0 24px; text-align:center;}
.page-head h1{font-weight:800; font-size:clamp(26px,4vw,34px); line-height:1.2; margin:0 0 14px;}
.page-head p{color:var(--text-secondary); font-size:15.5px; max-width:520px; margin:0 auto;}

/* ---------- Prose blocks (about page etc.) ---------- */
.prose{max-width:var(--w-narrow); margin:0 auto;}
.prose h2{font-weight:800; font-size:20px; margin:0 0 14px;}
.prose p{color:var(--text-secondary); margin:0 0 14px; line-height:1.65;}
.prose > *:last-child{margin-bottom:0;}
.block{margin-bottom:var(--sp-9);}
.block:last-child{margin-bottom:0;}

/* ---------- Generic content wrap (legal pages) ---------- */
.wrap{max-width:var(--w-narrow); margin:0 auto; padding:var(--sp-9) 24px var(--sp-11);}
.wrap h1{font-weight:800; font-size:clamp(24px,4vw,28px); margin:0 0 4px;}
.wrap .updated{color:var(--text-muted); font-size:13px; margin-bottom:var(--sp-8); text-align:center;}
.wrap h2{
  font-weight:800; font-size:17px; color:var(--text-primary);
  margin:var(--sp-8) 0 var(--sp-3); padding-top:var(--sp-6); border-top:1px solid var(--card-border-soft);
}
.wrap h2:first-of-type{border-top:none; padding-top:0; margin-top:0;}
.wrap p{color:var(--text-secondary); margin:0 0 14px;}
.wrap ul, .wrap ol{color:var(--text-secondary); margin:0 0 14px; padding-left:20px;}
.wrap li{margin-bottom:6px;}
.wrap strong{color:var(--text-primary); font-weight:700;}

.badge{
  display:inline-flex; align-items:center; gap:6px; background:rgba(255,107,107,0.08);
  border:1px solid rgba(255,107,107,0.25); color:var(--coral); font-weight:800;
  font-size:11.5px; border-radius:var(--r-pill); padding:5px 13px; margin-bottom:var(--sp-6);
}

/* ---------- Cards (shared flat style, no glow) ---------- */
.card{
  background:var(--card-bg); border:1px solid var(--card-border); border-radius:var(--r-lg);
  padding:20px 22px; margin:18px 0;
}
.card p{margin-bottom:0;}
.steps{background:var(--card-bg); border:1px solid var(--card-border); border-radius:var(--r-lg); padding:4px 22px; margin:18px 0;}
.steps ol{margin:14px 0;}

/* ---------- Product / feature grids (home) ---------- */
.product-card{
  background:var(--card-bg); border:1px solid var(--card-border); border-radius:var(--r-xl);
  padding:var(--sp-8); display:flex; flex-wrap:wrap; gap:32px; align-items:center; justify-content:space-between;
}
.product-card .info{flex:1; min-width:260px;}
.product-logo{display:flex; align-items:center; gap:10px; margin-bottom:14px;}
.product-logo img{width:32px; height:32px; border-radius:9px; display:block;}
.product-logo span{font-weight:800; font-size:20px; letter-spacing:-0.02em;}
.product-card p{color:var(--text-secondary); margin:0 0 22px; max-width:420px;}

.store-note{color:var(--text-muted); font-size:12px; margin-top:12px;}
.store-badges{display:flex; gap:14px; flex-wrap:wrap; align-items:center;}
.store-badge-btn{display:inline-flex; align-items:center; justify-content:center; width:168px; height:50px; border:none; background:none; padding:0; margin:0; cursor:pointer;}
.store-badge-btn img{width:100%; height:100%; object-fit:contain; display:block;}
.store-badge-btn.ios img{filter:grayscale(60%); opacity:0.8; transition:opacity .15s, filter .15s;}
.store-badge-btn.ios:hover img{opacity:1; filter:grayscale(30%);}

.features{display:grid; grid-template-columns:repeat(2, 1fr); gap:14px; margin-top:var(--sp-8);}
.feature{background:var(--card-bg); border:1px solid var(--card-border); border-radius:var(--r-lg); padding:22px;}
.feature .fmark{width:32px; height:32px; border-radius:9px; display:flex; align-items:center; justify-content:center; font-size:15px; margin-bottom:14px;}
.feature h4{font-weight:800; font-size:14px; margin:0 0 6px; color:var(--text-primary);}
.feature p{color:var(--text-secondary); font-size:13.5px; margin:0; line-height:1.55;}
.f-mint{background:rgba(61,255,192,0.1); color:var(--mint);}
.f-sky{background:rgba(96,212,245,0.1); color:var(--sky);}
.f-amber{background:rgba(255,184,48,0.1); color:var(--amber);}
.f-lavender{background:rgba(167,139,250,0.1); color:var(--lavender);}

.values{display:grid; grid-template-columns:repeat(3, 1fr); gap:14px;}
.value-card{background:var(--card-bg); border:1px solid var(--card-border); border-radius:var(--r-lg); padding:24px;}
.value-card h4{font-weight:800; font-size:14.5px; margin:0 0 8px;}
.value-card p{color:var(--text-secondary); font-size:13.5px; margin:0; line-height:1.55;}

.split{display:grid; grid-template-columns:1fr 1fr; gap:14px;}
.split-card{background:var(--card-bg); border:1px solid var(--card-border); border-radius:var(--r-lg); padding:26px;}
.split-card .icon{width:34px; height:34px; border-radius:9px; display:flex; align-items:center; justify-content:center; font-size:15px; margin-bottom:14px;}
.icon-mint{background:rgba(61,255,192,0.1); color:var(--mint);}
.icon-sky{background:rgba(96,212,245,0.1); color:var(--sky);}
.split-card h3{font-weight:800; font-size:15.5px; margin:0 0 8px;}
.split-card p{margin:0; font-size:13.5px; color:var(--text-secondary); line-height:1.55;}

.principle-grid{display:grid; grid-template-columns:repeat(2, 1fr); gap:12px;}
.principle{background:var(--navy-900); border:1px solid var(--card-border-soft); border-radius:var(--r-md); padding:18px 20px;}
.principle h4{font-weight:800; font-size:13.5px; margin:0 0 6px; color:var(--text-primary);}
.principle p{margin:0; font-size:13px; color:var(--text-secondary); line-height:1.55;}

.contact-grid{display:grid; grid-template-columns:1fr 1fr; gap:14px;}
.contact-card{background:var(--card-bg); border:1px solid var(--card-border); border-radius:var(--r-lg); padding:26px;}
.contact-card .icon{width:34px; height:34px; border-radius:9px; background:rgba(61,255,192,0.1); color:var(--mint); display:flex; align-items:center; justify-content:center; font-size:15px; margin-bottom:14px;}
.contact-card h3{font-weight:800; font-size:14.5px; margin:0 0 6px;}
.contact-card p{color:var(--text-secondary); font-size:13px; margin:0 0 12px; line-height:1.5;}
.contact-card a.mail{font-weight:800; font-size:13.5px; word-break:break-all;}
.note{background:var(--navy-900); border:1px solid var(--card-border-soft); border-radius:var(--r-md); padding:16px 18px; margin-top:16px; color:var(--text-secondary); font-size:13px; line-height:1.55;}

/* ---------- CTA band ---------- */
.cta-band{max-width:var(--w-page); margin:0 auto; padding:0 24px var(--sp-10);}
.cta-inner{
  background:var(--navy-900); border:1px solid var(--card-border-soft); border-radius:var(--r-xl);
  padding:var(--sp-8); text-align:center;
}
.cta-inner h3{font-weight:800; font-size:21px; margin:0 0 8px;}
.cta-inner p{color:var(--text-secondary); margin:0 0 20px; font-size:14.5px;}

/* ---------- Modal ---------- */
.modal-overlay{
  position:fixed; inset:0; background:rgba(11,15,26,0.72); backdrop-filter:blur(2px);
  display:none; align-items:center; justify-content:center; z-index:999; padding:20px;
}
.modal-overlay.open{display:flex;}
.modal-box{background:var(--card-bg); border:1px solid var(--card-border); border-radius:var(--r-xl); padding:34px 30px; max-width:340px; text-align:center;}
.modal-box .modal-icon{width:48px; height:48px; border-radius:var(--r-md); background:linear-gradient(135deg, var(--mint), var(--sky)); display:flex; align-items:center; justify-content:center; font-size:22px; margin:0 auto 16px;}
.modal-box h3{font-weight:800; font-size:18px; margin:0 0 10px;}
.modal-box p{color:var(--text-secondary); font-size:13px; margin:0 0 22px; line-height:1.55;}
.modal-box .btn{width:100%;}

/* ---------- Footer ---------- */
footer{border-top:1px solid var(--card-border-soft); padding:var(--sp-8) 24px;}
.footer-inner{max-width:var(--w-page); margin:0 auto; display:flex; flex-wrap:wrap; justify-content:space-between; align-items:center; gap:16px;}
.footer-brand{display:flex; align-items:center; gap:8px;}
.footer-brand img{width:22px; height:22px; border-radius:6px;}
.footer-brand span{font-weight:800; font-size:13px; color:var(--text-secondary);}
.footer-links{display:flex; flex-wrap:wrap; gap:6px 18px;}
.footer-links a{color:var(--text-muted); font-size:12.5px;}
.footer-links a:hover{color:var(--mint);}
.footer-meta{color:var(--text-muted); font-size:12px;}

/* ---------- Responsive ---------- */
@media (max-width:760px){
  section{padding:var(--sp-9) 20px;}
  .hero{margin:var(--sp-8) auto var(--sp-7);}
  .features,.values,.split,.principle-grid,.contact-grid{grid-template-columns:1fr;}
  .product-card{padding:24px;}
  .cta-inner{padding:28px 22px;}
  .footer-inner{flex-direction:column; align-items:flex-start;}
}