/* I Learn English Here — shared styles (all pages) */
/* Adsterra Social Bar: kept off the top/nav area and shrunk down */
iframe[id^="container-"]{top:auto!important;bottom:16px!important;left:16px!important;right:auto!important;width:min(300px,88vw)!important;height:84px!important;border-radius:12px!important;box-shadow:0 6px 20px rgba(0,0,0,.22)!important}

:root{--ink:#132a2e;--paper:#f6faf9;--accent:#1f7a6c;--accent-dk:#175f54;--accent2:#e0a548;--line:#dbe8e5;--card:#fff;--muted:#54706c;--soft:#3f5a56}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:'Segoe UI',system-ui,-apple-system,sans-serif;background:var(--paper);color:var(--ink);line-height:1.5}
img{max-width:100%;display:block}
a{color:var(--accent)}

/* header */
header.site{padding:.9rem 6vw;display:flex;align-items:center;justify-content:space-between;gap:1rem;flex-wrap:wrap;border-bottom:1px solid var(--line);background:#fff;position:sticky;top:0;z-index:20}
.brand{display:flex;align-items:center;gap:.9rem;text-decoration:none;color:var(--ink)}
.logo{font-weight:700;font-size:1.12rem;display:flex;align-items:center;gap:.5em}
.logo .mark{width:34px;height:34px;border-radius:9px;background:var(--accent);color:#fff;display:flex;align-items:center;justify-content:center;font-family:Georgia,serif;font-weight:700}
.by{display:flex;align-items:center;gap:.4rem;padding-left:.9rem;border-left:1px solid var(--line);font-size:.68rem;color:#7d938f;text-transform:uppercase;letter-spacing:.1em}
.by img{height:30px;width:auto}
nav.main{display:flex;flex-wrap:wrap;gap:.3rem 1.4rem}
nav.main a{color:var(--ink);text-decoration:none;font-size:.92rem;font-weight:500;padding:.25rem 0;border-bottom:2px solid transparent}
nav.main a:hover,nav.main a[aria-current="page"]{color:var(--accent);border-bottom-color:var(--accent)}
nav.main a.nav-cta{background:var(--accent);color:#fff;padding:.35rem .9rem;border-radius:999px;border:0}
nav.main a.nav-cta:hover{background:var(--accent-dk);color:#fff}
@media (max-width:720px){
  header.site{padding:.8rem 16px}
  .by{display:none}
  nav.main{width:100%;justify-content:space-between;gap:.3rem .8rem}
  nav.main a{font-size:.88rem}
}

/* hero */
.hero{padding:7vh 6vw 6vh;max-width:1120px;margin:0 auto;display:grid;grid-template-columns:1.1fr .9fr;gap:3rem;align-items:center}
.hero .art{border-radius:24px;box-shadow:0 18px 40px rgba(19,42,46,.12)}
@media (max-width:820px){.hero{grid-template-columns:minmax(0,1fr);text-align:center;padding:5vh 16px;gap:2rem}.hero .art{max-width:min(420px,100%);margin:0 auto}}
.eyebrow{text-transform:uppercase;letter-spacing:.25em;font-size:.72rem;color:var(--accent);font-weight:700;margin-bottom:1rem}
h1{font-size:clamp(2rem,5vw,3.1rem);line-height:1.12;margin:0 0 1rem}
h1 span,h2 span{color:var(--accent)}
.hero p{font-size:1.12rem;color:var(--soft);max-width:560px;margin:0 0 2rem;line-height:1.6}
@media (max-width:820px){.hero p{margin:0 auto 2rem}}
.cta-row{display:flex;gap:1rem;flex-wrap:wrap}
@media (max-width:820px){.cta-row{justify-content:center}}
.btn{padding:.9em 1.6em;border-radius:10px;font-weight:600;text-decoration:none;font-size:.98rem;display:inline-block;border:0;cursor:pointer;font-family:inherit}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent-dk)}
.btn-secondary{background:#fff;color:var(--ink);border:1px solid var(--line)}
.btn-secondary:hover{border-color:var(--accent);color:var(--accent)}

/* sections */
section.strip{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:6vh 6vw}
@media (max-width:720px){section.strip{padding:5vh 16px}}
.section-head{max-width:760px;margin:0 auto 2.2rem;text-align:center}
.section-head h2{font-size:clamp(1.5rem,3.4vw,2rem);margin:0 0 .5rem}
.section-head p{color:var(--soft);margin:0}
.wrap{max-width:1080px;margin:0 auto}
.cards{max-width:1080px;margin:0 auto;display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:1.4rem}
.card{background:var(--card);border:1px solid var(--line);border-radius:16px;overflow:hidden;display:flex;flex-direction:column;transition:transform .2s,box-shadow .2s}
.card:hover{transform:translateY(-4px);box-shadow:0 12px 28px rgba(19,42,46,.1)}
.card .body{padding:1.3rem 1.4rem 1.5rem}
.card .tag{display:inline-block;font-size:.7rem;text-transform:uppercase;letter-spacing:.08em;color:var(--accent2);font-weight:700;margin-bottom:.5rem}
.card h3{margin:.1rem 0 .5rem;font-size:1.08rem}
.card p{margin:0;color:var(--muted);font-size:.94rem;line-height:1.55}
.badge-soon{display:inline-block;margin-top:.9rem;font-size:.72rem;background:#fdf0e0;color:#a56a1c;padding:.25em .7em;border-radius:999px;font-weight:600}

/* feature split */
.split{max-width:1080px;margin:0 auto;display:grid;grid-template-columns:1fr 1fr;gap:3rem;align-items:center;padding:7vh 6vw}
.split.rev .art{order:2}
.split .art{border-radius:24px}
.split h2{font-size:clamp(1.5rem,3.4vw,2rem);margin:0 0 .8rem}
.split p{color:var(--soft);line-height:1.65}
.split ul{padding-left:1.1rem;color:var(--soft);line-height:1.8}
@media (max-width:820px){.split{grid-template-columns:minmax(0,1fr);padding:5vh 16px;gap:1.6rem}.split.rev .art{order:0}.split .art{max-width:min(420px,100%);margin:0 auto}}

/* steps */
.steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:1.2rem;max-width:1080px;margin:0 auto;counter-reset:s}
.step{background:#fff;border:1px solid var(--line);border-radius:16px;padding:1.4rem;position:relative}
.step::before{counter-increment:s;content:counter(s);width:38px;height:38px;border-radius:50%;background:var(--accent);color:#fff;font-weight:700;display:flex;align-items:center;justify-content:center;margin-bottom:.8rem}
.step h3{margin:0 0 .4rem;font-size:1.05rem}
.step p{margin:0;color:var(--muted);font-size:.94rem}

/* ecosystem links */
.ecosystem{max-width:900px;margin:6vh auto;padding:0 6vw;text-align:center}
.ecosystem h2{font-size:1.5rem;margin-bottom:.6rem}
.ecosystem p{color:var(--soft);line-height:1.6;margin-bottom:2rem}
.links-grid{display:flex;flex-wrap:wrap;gap:1rem;justify-content:center}
.links-grid a{border:1px solid var(--line);background:#fff;padding:.8em 1.3em;border-radius:10px;text-decoration:none;color:var(--ink);font-size:.9rem;font-weight:500}
.links-grid a:hover{border-color:var(--accent);color:var(--accent)}

/* free Udemy banner */
.free-banner{max-width:520px;margin:24px auto;padding:14px 16px;border:3px solid #d9822b;border-radius:14px;background:#fff8e7;text-align:center;font-family:Arial,sans-serif;box-shadow:4px 4px 0 #f2c14e}
.free-banner .t{font-size:18px;font-weight:bold;color:#8a3b12}
.free-banner .s{font-size:14px;color:#5b4636;margin:6px 0 12px}
.free-banner a{display:inline-block;padding:10px 20px;background:#d9822b;color:#fff;border-radius:30px;text-decoration:none;font-weight:bold}
@media (max-width:560px){.free-banner{margin:24px 16px}}

/* FAQ */
.faq{max-width:820px;margin:0 auto}
.faq details{background:#fff;border:1px solid var(--line);border-radius:14px;margin-bottom:.8rem;overflow:hidden}
.faq summary{cursor:pointer;list-style:none;padding:1.05rem 3rem 1.05rem 1.2rem;font-weight:600;position:relative}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:1.1rem;top:50%;transform:translateY(-50%);width:26px;height:26px;border-radius:50%;background:#e8f4f1;color:var(--accent);display:flex;align-items:center;justify-content:center;font-size:1.1rem;transition:transform .2s}
.faq details[open] summary::after{content:"–";transform:translateY(-50%) rotate(180deg)}
.faq details[open] summary{color:var(--accent)}
.faq .a{padding:0 1.2rem 1.1rem;color:var(--soft);line-height:1.65}
.faq .a p{margin:.2rem 0 .6rem}
.faq h3{font-size:.8rem;text-transform:uppercase;letter-spacing:.15em;color:var(--accent2);margin:2rem 0 .8rem}

/* level finder */
.quiz{max-width:720px;margin:0 auto;background:#fff;border:1px solid var(--line);border-radius:20px;padding:1.6rem;box-shadow:0 12px 30px rgba(19,42,46,.06)}
.quiz .progress{height:8px;background:#e8f4f1;border-radius:99px;overflow:hidden;margin-bottom:1.2rem}
.quiz .progress div{height:100%;width:0;background:var(--accent);transition:width .3s}
.quiz .qnum{font-size:.75rem;text-transform:uppercase;letter-spacing:.15em;color:var(--accent2);font-weight:700}
.quiz .qtext{font-size:1.2rem;font-weight:600;margin:.4rem 0 1rem}
.quiz .opts{display:grid;gap:.6rem}
.quiz .opt{text-align:left;background:#f6faf9;border:2px solid var(--line);border-radius:12px;padding:.85rem 1rem;font-size:1rem;font-family:inherit;color:var(--ink);cursor:pointer;transition:border-color .15s,background .15s}
.quiz .opt:hover{border-color:var(--accent)}
.quiz .opt.right{border-color:#2e9e5b;background:#e9f8ef}
.quiz .opt.wrong{border-color:#d4574e;background:#fdeceb}
.quiz .opt:disabled{cursor:default}
.quiz .why{margin-top:1rem;padding:.8rem 1rem;border-radius:12px;background:#fff8e7;color:#5b4636;font-size:.95rem;display:none}
.quiz .why.show{display:block}
.quiz .nav{margin-top:1.2rem;display:flex;justify-content:flex-end}
.result{text-align:center}
.result .lvl{display:inline-block;font-size:1.6rem;font-weight:800;color:var(--accent);margin:.3rem 0 .6rem}
.result p{color:var(--soft)}
.result .cta-row{justify-content:center;margin-top:1rem}

/* footer */
footer.site{text-align:center;padding:5vh 6vw 7vh;color:#7d938f;font-size:.85rem;border-top:1px solid var(--line);background:#fff;margin-top:4vh}
footer.site .oba{display:inline-flex;flex-direction:column;align-items:center;gap:.5rem;text-decoration:none;color:#7d938f;margin-bottom:1rem}
footer.site .oba img{height:48px;width:auto}
footer.site nav{display:flex;justify-content:center;flex-wrap:wrap;gap:.4rem 1.2rem;margin-bottom:.8rem}
footer.site nav a{color:var(--soft);text-decoration:none}
footer.site nav a:hover{color:var(--accent)}
@media (max-width:720px){footer.site{padding-bottom:130px}} /* room for the social bar */

/* Phones: keep the main menu on ONE swipeable row so the sticky header stays small */
@media (max-width:720px){
  nav.main{flex-wrap:nowrap;overflow-x:auto;justify-content:flex-start;gap:1.1rem;padding-bottom:4px;scrollbar-width:none;-webkit-overflow-scrolling:touch;mask-image:linear-gradient(90deg,#000 88%,transparent)}
  nav.main::-webkit-scrollbar{display:none}
  nav.main a{white-space:nowrap;flex:none}
}