/* IELTS Idiom & Vocab Master — spoke theme
   Palette from app marketing: near-black hero, gold structural accent,
   warm orange CTA, cream paper, navy ink. */

:root{
  --hero-bg:#0b0a08;
  --hero-bg-2:#17140e;
  --accent:#b8860f;          /* structural gold (darkened for AA on white) */
  --accent-bright:#c9a227;   /* gold on dark backgrounds */
  --cta:#de8a3c;             /* warm orange */
  --cta-dark:#c47528;
  --paper:#f7f3ea;
  --white:#ffffff;
  --ink:#1e2749;
  --text:#2b2b2b;
  --muted:#6b6558;
  --border:#e6dfd0;
  --radius:14px;
  --shadow:0 10px 30px rgba(20,16,8,.10);
  --shadow-lift:0 16px 40px rgba(20,16,8,.16);
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:'Inter',system-ui,-apple-system,sans-serif;
  color:var(--text);
  background:var(--white);
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{font-family:'Bricolage Grotesque','Inter',sans-serif;line-height:1.15;color:var(--ink)}
img{max-width:100%;display:block}
a{color:var(--accent)}
.container{max-width:1100px;margin:0 auto;padding:0 1.25rem}

/* ---------- Nav ---------- */
.site-nav{
  position:sticky;top:0;z-index:50;
  background:rgba(11,10,8,.92);backdrop-filter:blur(8px);
  border-bottom:1px solid rgba(201,162,39,.18);
}
.site-nav .container{display:flex;align-items:center;justify-content:space-between;height:64px}
.nav-brand{display:flex;align-items:center;gap:.6rem;color:#fff;text-decoration:none;font-weight:700;font-family:'Bricolage Grotesque',sans-serif;font-size:1.02rem}
.nav-brand img{width:34px;height:34px;border-radius:8px}
.nav-links{display:flex;align-items:center;gap:1.4rem;list-style:none}
.nav-links a{color:#e9e2cf;text-decoration:none;font-size:.92rem}
.nav-links a:hover{color:var(--accent-bright)}
.nav-links a.btn{background:var(--cta);padding:.5rem 1.05rem;border-radius:999px;font-weight:600}
.nav-links a.btn{color:#fff}
.nav-links a.btn:hover{background:var(--cta-dark);color:#fff}
@media(max-width:640px){.nav-links li.hide-m{display:none}}

/* ---------- Hero ---------- */
.hero{
  background:radial-gradient(1200px 600px at 75% -10%,var(--hero-bg-2),var(--hero-bg) 60%);
  color:#fff;overflow:hidden;
}
.hero .container{
  display:grid;grid-template-columns:1.05fr .95fr;gap:3rem;
  align-items:center;padding-top:4.5rem;padding-bottom:0;min-height:600px;
}
.hero-copy{padding-bottom:4.5rem}
.hero-eyebrow{
  display:inline-block;font-size:.8rem;letter-spacing:.14em;text-transform:uppercase;
  color:var(--accent-bright);border:1px solid rgba(201,162,39,.45);
  padding:.3rem .8rem;border-radius:999px;margin-bottom:1.2rem;
}
.hero h1{color:#fff;font-size:clamp(2.2rem,4.6vw,3.4rem);font-weight:700;margin-bottom:1.1rem}
.hero h1 .hl{color:var(--cta)}
.hero-sub{color:#cfc8b6;font-size:1.08rem;max-width:34rem;margin-bottom:1.8rem}
.hero-ctas{display:flex;gap:.9rem;flex-wrap:wrap;margin-bottom:2rem}
.btn-primary{
  display:inline-flex;align-items:center;gap:.55rem;background:var(--cta);color:#fff;
  padding:.85rem 1.5rem;border-radius:999px;text-decoration:none;font-weight:700;font-size:1rem;
  box-shadow:0 8px 24px rgba(222,138,60,.35);transition:transform .15s,background .15s;
}
.btn-primary:hover{background:var(--cta-dark);transform:translateY(-2px)}
.btn-secondary{
  display:inline-flex;align-items:center;gap:.55rem;color:#fff;text-decoration:none;
  padding:.85rem 1.4rem;border-radius:999px;border:1px solid rgba(255,255,255,.35);font-weight:600;
}
.btn-secondary:hover{border-color:var(--accent-bright);color:var(--accent-bright)}
.trust-row{display:flex;flex-wrap:wrap;gap:1.4rem;color:#b9b19c;font-size:.85rem}
.trust-row span{display:inline-flex;align-items:center;gap:.45rem}
.trust-row i{color:var(--accent-bright)}
.hero-mock{
  align-self:end;justify-self:center;width:min(320px,80%);
  transform:rotate(2.5deg);border-radius:38px 38px 0 0;
  border:10px solid #23201a;border-bottom:none;background:#23201a;
  box-shadow:0 -10px 60px rgba(0,0,0,.55);
}
.hero-mock img{border-radius:28px 28px 0 0}
@media(max-width:860px){
  .hero .container{grid-template-columns:1fr;gap:1.5rem;min-height:auto}
  .hero-copy{padding-bottom:0}
  .hero-mock{width:min(260px,75%)}
}

/* ---------- Sections ---------- */
section{padding:4.5rem 0}
.section-paper{background:var(--paper)}
.section-head{max-width:44rem;margin:0 auto 2.8rem;text-align:center}
.section-head h2{font-size:clamp(1.7rem,3.2vw,2.3rem);margin-bottom:.7rem}
.section-head p{color:var(--muted)}

/* Screenshots row */
.shots{display:grid;grid-template-columns:repeat(3,1fr);gap:1.6rem;max-width:900px;margin:0 auto}
.shot{border-radius:24px;overflow:hidden;box-shadow:var(--shadow);background:#0b0a08;transition:transform .2s,box-shadow .2s}
.shot:hover{transform:translateY(-6px);box-shadow:var(--shadow-lift)}
@media(max-width:700px){.shots{grid-template-columns:1fr;max-width:320px}}

/* In-action bands */
.band{display:grid;grid-template-columns:1fr 1fr;gap:3rem;align-items:center;margin-bottom:3.5rem}
.band:last-child{margin-bottom:0}
.band.rev .band-media{order:2}
.band-media{border-radius:24px;overflow:hidden;box-shadow:var(--shadow);max-width:360px;margin:0 auto;background:#0b0a08}
.band-copy h3{font-size:1.5rem;margin-bottom:.8rem}
.band-copy p{color:var(--muted)}
@media(max-width:800px){.band{grid-template-columns:1fr;gap:1.6rem}.band.rev .band-media{order:0}}

/* How it works */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:1.6rem}
.step{background:var(--white);border:1px solid var(--border);border-radius:var(--radius);padding:1.8rem;box-shadow:var(--shadow)}
.step-num{
  width:42px;height:42px;border-radius:50%;background:var(--ink);color:var(--accent-bright);
  display:flex;align-items:center;justify-content:center;font-weight:700;font-family:'Bricolage Grotesque',sans-serif;
  margin-bottom:1rem;font-size:1.05rem;
}
.step h3{font-size:1.12rem;margin-bottom:.5rem}
.step p{color:var(--muted);font-size:.95rem}
@media(max-width:800px){.steps{grid-template-columns:1fr}}

/* Features grid */
.features{display:grid;grid-template-columns:repeat(4,1fr);gap:1.4rem}
.feature{background:var(--white);border:1px solid var(--border);border-radius:var(--radius);padding:1.5rem;transition:transform .2s,box-shadow .2s}
.feature:hover{transform:translateY(-5px);box-shadow:var(--shadow-lift)}
.feature i{color:var(--cta);font-size:1.35rem;margin-bottom:.8rem}
.feature h3{font-size:1.02rem;margin-bottom:.4rem}
.feature p{color:var(--muted);font-size:.88rem}
@media(max-width:960px){.features{grid-template-columns:repeat(2,1fr)}}
@media(max-width:560px){.features{grid-template-columns:1fr}}

/* Guides list */
.guides{display:grid;grid-template-columns:repeat(2,1fr);gap:1.4rem}
.guide-card{
  background:var(--white);border:1px solid var(--border);border-radius:var(--radius);
  padding:1.5rem 1.6rem;text-decoration:none;display:block;transition:transform .2s,box-shadow .2s;
}
.guide-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lift)}
.guide-card h3{font-size:1.05rem;margin-bottom:.4rem}
.guide-card p{color:var(--muted);font-size:.9rem}
.guide-card .more{color:var(--accent);font-weight:600;font-size:.88rem;display:inline-block;margin-top:.6rem}
@media(max-width:700px){.guides{grid-template-columns:1fr}}

/* FAQ */
.faq{max-width:760px;margin:0 auto}
.faq details{
  background:var(--white);border:1px solid var(--border);border-radius:var(--radius);
  padding:1.1rem 1.4rem;margin-bottom:.9rem;
}
.faq summary{cursor:pointer;font-weight:600;color:var(--ink);font-size:1.02rem;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:1rem}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:'+';color:var(--accent);font-size:1.3rem;font-weight:400}
.faq details[open] summary::after{content:'\2212'}
.faq details p{margin-top:.8rem;color:var(--muted);font-size:.95rem}
.faq a{font-weight:600}

/* CTA band */
.cta-band{background:linear-gradient(120deg,var(--hero-bg),#241d10);color:#fff;text-align:center}
.cta-band h2{color:#fff;font-size:clamp(1.7rem,3vw,2.2rem);margin-bottom:.8rem}
.cta-band p{color:#cfc8b6;max-width:36rem;margin:0 auto 1.8rem}

/* Guide article pages */
.article{max-width:760px;margin:0 auto;padding:3.5rem 1.25rem 4.5rem}
.article header{margin-bottom:2.2rem}
.article .crumb{font-size:.85rem;color:var(--muted);margin-bottom:1rem}
.article .crumb a{color:var(--accent);text-decoration:none}
.article h1{font-size:clamp(1.9rem,3.6vw,2.6rem);margin-bottom:.8rem}
.article .lede{color:var(--muted);font-size:1.08rem}
.article h2{font-size:1.45rem;margin:2.4rem 0 .9rem}
.article h3{font-size:1.12rem;margin:1.8rem 0 .6rem}
.article p{margin-bottom:1.05rem}
.article ul,.article ol{margin:0 0 1.05rem 1.4rem}
.article li{margin-bottom:.45rem}
.article .ex{
  background:var(--paper);border-left:4px solid var(--accent);
  border-radius:0 var(--radius) var(--radius) 0;padding:1rem 1.3rem;margin:1.2rem 0;
}
.article .ex p{margin:0}
.article table{width:100%;border-collapse:collapse;margin:1.2rem 0;font-size:.95rem}
.article th,.article td{border:1px solid var(--border);padding:.6rem .8rem;text-align:left;vertical-align:top}
.article th{background:var(--paper);color:var(--ink)}

.app-cta{
  background:var(--hero-bg);color:#fff;border-radius:var(--radius);
  padding:1.8rem;margin:2.6rem 0;display:flex;gap:1.4rem;align-items:center;flex-wrap:wrap;
}
.app-cta img{width:64px;height:64px;border-radius:14px}
.app-cta .t{flex:1;min-width:220px}
.app-cta h3{color:#fff;margin:0 0 .35rem;font-size:1.15rem}
.app-cta p{color:#cfc8b6;margin:0;font-size:.92rem}

.related{margin-top:3rem;border-top:1px solid var(--border);padding-top:1.8rem}
.related h2{font-size:1.25rem;margin:0 0 1rem}
.related ul{list-style:none;margin:0}
.related li{margin-bottom:.6rem}
.related a{font-weight:600;text-decoration:none}
.related a:hover{text-decoration:underline}

/* Footer */
.site-footer{background:var(--hero-bg);color:#b9b19c;padding:3rem 0 2rem;font-size:.9rem}
.site-footer .cols{display:grid;grid-template-columns:2fr 1fr 1fr;gap:2.5rem;margin-bottom:2rem}
.site-footer h4{color:#fff;font-size:.98rem;margin-bottom:.8rem}
.site-footer ul{list-style:none}
.site-footer li{margin-bottom:.45rem}
.site-footer a{color:#b9b19c;text-decoration:none}
.site-footer a:hover{color:var(--accent-bright)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding-top:1.4rem;display:flex;justify-content:space-between;flex-wrap:wrap;gap:.8rem}
@media(max-width:760px){.site-footer .cols{grid-template-columns:1fr}}