/* Online Coaching 4u — design system */
:root{
  --ink:#0f172a; --ink-2:#475569; --ink-3:#94a3b8;
  --brand:#4f46e5; --brand-dark:#4338ca; --brand-soft:#eef2ff; --brand-border:#c7d2fe;
  --bg:#f8fafc; --card:#ffffff; --line:#e2e8f0;
  --ok:#059669; --ok-soft:#ecfdf5;
  --warn:#b45309; --warn-soft:#fffbeb;
  --gold:#f59e0b;
  --radius:14px; --shadow:0 1px 3px rgba(15,23,42,.08),0 8px 24px -12px rgba(15,23,42,.12);
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font);color:var(--ink);background:var(--bg);line-height:1.6;font-size:16px}
img{max-width:100%;display:block}
a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline}
.container{max-width:1120px;margin:0 auto;padding:0 20px}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
.muted{color:var(--ink-3);font-size:.9em}

/* header */
.site-header{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50}
.header-inner{display:flex;align-items:center;gap:24px;height:64px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:1.05rem;color:var(--ink)}
.logo:hover{text-decoration:none}
.main-nav{display:flex;gap:4px;margin-left:auto}
.main-nav a{padding:8px 14px;border-radius:8px;color:var(--ink-2);font-weight:500}
.main-nav a:hover{background:var(--brand-soft);color:var(--brand);text-decoration:none}
.main-nav a.active{color:var(--brand);background:var(--brand-soft);font-weight:600}
.nav-toggle{display:none;background:none;border:1px solid var(--line);border-radius:8px;font-size:1.2rem;padding:4px 10px;cursor:pointer}

/* buttons */
.btn{display:inline-block;padding:12px 22px;border-radius:10px;font-weight:600;border:none;cursor:pointer;font-size:.95rem;transition:background .15s}
.btn:hover{text-decoration:none}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-dark)}
.btn-ghost{background:#fff;color:var(--brand);border:1.5px solid var(--brand-border)}
.btn-ghost:hover{background:var(--brand-soft)}
.btn-sm{padding:8px 16px;font-size:.85rem}

/* hero */
.hero{background:linear-gradient(160deg,#eef2ff 0%,#f8fafc 55%,#eff6ff 100%);padding:72px 0 56px;text-align:center;border-bottom:1px solid var(--line)}
.hero-sm{padding:48px 0 36px}
.hero-kicker{display:inline-block;background:#fff;border:1px solid var(--brand-border);color:var(--brand);font-weight:600;font-size:.8rem;padding:6px 14px;border-radius:999px;margin-bottom:18px}
.hero h1{font-size:clamp(1.9rem,4.5vw,3.1rem);line-height:1.15;letter-spacing:-.02em;font-weight:800}
.hero-sub{color:var(--ink-2);max-width:620px;margin:14px auto 0;font-size:1.05rem}
.searchbox{display:flex;gap:10px;max-width:560px;margin:28px auto 0;background:#fff;padding:10px;border-radius:14px;box-shadow:var(--shadow);border:1px solid var(--line)}
.searchbox select{flex:1;border:none;font-size:1rem;padding:10px;border-radius:8px;background:#fff;color:var(--ink);outline-color:var(--brand)}
.stats-row{display:flex;justify-content:center;gap:clamp(20px,6vw,64px);margin-top:40px;flex-wrap:wrap}
.stats-row div{display:flex;flex-direction:column}
.stats-row strong{font-size:1.7rem;color:var(--brand)}
.stats-row span{color:var(--ink-2);font-size:.85rem}

/* sections */
.section{padding:48px 0}
.section h2{font-size:1.55rem;letter-spacing:-.01em;margin-bottom:6px}
.section-sub{color:var(--ink-2);margin-bottom:22px}
.section h2+.tile-grid,.section h2+.card-grid{margin-top:22px}

/* tiles */
.tile-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:14px}
.tile{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:18px;display:flex;flex-direction:column;gap:2px;color:var(--ink);transition:border-color .15s, box-shadow .15s}
.tile:hover{border-color:var(--brand-border);box-shadow:var(--shadow);text-decoration:none}
.tile-ic{font-size:1.5rem;margin-bottom:6px}
.tile strong{font-size:1rem}

/* cards */
.card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(310px,1fr));gap:18px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;color:var(--ink);display:flex;flex-direction:column;transition:box-shadow .15s,border-color .15s}
.card:hover{box-shadow:var(--shadow);border-color:var(--brand-border);text-decoration:none}
.card-media{aspect-ratio:16/8.5;background:var(--brand-soft);overflow:hidden}
.card-media img{width:100%;height:100%;object-fit:cover}
.card-media.noimg img{display:none}
.card-media.noimg,.detail-media.noimg{display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,var(--brand-soft),#e0e7ff)}
.media-initial{font-size:3rem;font-weight:800;color:var(--brand);opacity:.55}
.badge-online{background:#eff6ff;color:#1d4ed8}
.card-body{padding:16px;display:flex;flex-direction:column;gap:8px;flex:1}
.card-top{display:flex;gap:8px;flex-wrap:wrap}
.card h3{font-size:1.05rem;line-height:1.3}
.card-loc{color:var(--ink-2);font-size:.85rem}
.card-chips{display:flex;flex-wrap:wrap;gap:6px}
.chip{background:var(--brand-soft);color:var(--brand-dark);font-size:.75rem;font-weight:600;padding:3px 10px;border-radius:999px}
.chip-more{background:var(--bg);color:var(--ink-2)}
.chip-price{background:var(--ok-soft);color:var(--ok)}
.badge{font-size:.72rem;font-weight:700;padding:3px 10px;border-radius:999px;letter-spacing:.02em}
.badge-verified{background:var(--ok-soft);color:var(--ok)}
.badge-unverified{background:var(--warn-soft);color:var(--warn)}
.badge-type{background:var(--bg);color:var(--ink-2)}
.card-foot{margin-top:auto;display:flex;justify-content:space-between;align-items:center;padding-top:8px;border-top:1px solid var(--line)}
.rating{font-weight:700;font-size:.9rem}
.star{color:var(--gold)}
.card-cta{color:var(--brand);font-weight:600;font-size:.85rem}

/* why + cta */
.why-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:18px;margin-top:22px}
.why-grid div{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:20px}
.why-grid h3{font-size:1rem;margin-bottom:6px;color:var(--brand-dark)}
.why-grid p{color:var(--ink-2);font-size:.92rem}
.cta-band{background:var(--brand);border-radius:var(--radius);color:#fff;text-align:center;padding:44px 24px;margin-bottom:48px}
.cta-band h2{color:#fff}
.cta-band p{opacity:.9;margin:8px 0 18px}
.cta-band a{color:#fff;text-decoration:underline}
.cta-band .btn-primary{background:#fff;color:var(--brand);text-decoration:none}
.cta-band .btn-primary:hover{background:var(--brand-soft)}

/* listing */
.breadcrumb{padding:14px 20px;font-size:.85rem;color:var(--ink-3)}
.breadcrumb a{color:var(--ink-2)}
.listing-head h1{font-size:1.8rem;letter-spacing:-.01em}
.filterbar{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:14px 16px;margin-top:18px;display:flex;flex-direction:column;gap:10px}
.filterbar-row{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.filterbar-label{font-size:.8rem;font-weight:700;color:var(--ink-2);text-transform:uppercase;letter-spacing:.04em}
.fchip{background:var(--bg);border:1px solid var(--line);border-radius:999px;padding:5px 14px;font-size:.83rem;font-weight:600;color:var(--ink-2);cursor:pointer}
.fchip:hover{border-color:var(--brand-border);color:var(--brand)}
.fchip.active{background:var(--brand);border-color:var(--brand);color:#fff}
#sortsel{padding:6px 10px;border-radius:8px;border:1px solid var(--line);font-size:.85rem}
.vcheck{font-size:.85rem;color:var(--ink-2);display:flex;align-items:center;gap:6px}

/* detail */
.detail-hero{display:grid;grid-template-columns:1.1fr 1fr;gap:28px;padding-top:8px;align-items:start}
.detail-media{border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);background:var(--brand-soft);aspect-ratio:16/10}
.detail-media img{width:100%;height:100%;object-fit:cover}
.detail-media.noimg img{display:none}
.detail-summary h1{font-size:1.7rem;line-height:1.2;margin:8px 0 6px}
.detail-facts{display:flex;gap:28px;margin:16px 0;padding:12px 16px;background:var(--card);border:1px solid var(--line);border-radius:10px}
.detail-facts div{display:flex;flex-direction:column}
.detail-facts .muted{font-size:.75rem;text-transform:uppercase;letter-spacing:.04em}
.detail-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:8px}
.detail-body{display:grid;grid-template-columns:1.6fr 1fr;gap:32px;align-items:start}
.detail-main h2{font-size:1.25rem;margin:26px 0 8px}
.detail-main h2:first-child{margin-top:0}
.hl-list{padding-left:20px}
.hl-list li{margin-bottom:6px}
.detail-side{position:sticky;top:84px}
.side-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:20px;box-shadow:var(--shadow)}
.side-card h3{margin-bottom:4px}
.side-h{margin:24px 0 12px}
.side-cards{display:flex;flex-direction:column;gap:14px}
.enq-form{display:flex;flex-direction:column;gap:12px;margin-top:12px}
.enq-form label{display:flex;flex-direction:column;gap:4px;font-size:.85rem;font-weight:600;color:var(--ink-2)}
.enq-form input,.enq-form textarea{padding:10px 12px;border:1px solid var(--line);border-radius:8px;font-size:.95rem;font-family:var(--font)}
.enq-form input:focus,.enq-form textarea:focus{outline:2px solid var(--brand);border-color:var(--brand)}
.form-ok{color:var(--ok);font-weight:600;font-size:.9rem}

/* prose / static pages */
.prose{max-width:760px}
.prose h2{font-size:1.3rem;margin:26px 0 8px}
.prose p{margin-bottom:12px;color:var(--ink-2)}
.prose ul{padding-left:22px;color:var(--ink-2)}
.prose li{margin-bottom:4px}
.post{border:1px solid var(--line);background:var(--card);border-radius:var(--radius);padding:26px;margin-bottom:20px}
.post h2{margin-top:0}
.split{display:grid;grid-template-columns:1.4fr 1fr;gap:36px;align-items:start}

/* footer */
.site-footer{background:#0f172a;color:#cbd5e1;margin-top:24px}
.footer-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:28px;padding:48px 20px 24px}
.site-footer h3{color:#fff;font-size:.85rem;text-transform:uppercase;letter-spacing:.06em;margin-bottom:12px}
.site-footer ul{list-style:none}
.site-footer li{margin-bottom:8px}
.site-footer a{color:#cbd5e1;font-size:.9rem}
.site-footer a:hover{color:#fff}
.footer-note{font-size:.78rem;color:#64748b;margin-top:14px}
.footer-bottom{border-top:1px solid #1e293b;padding:18px 20px;font-size:.85rem;color:#64748b}

/* responsive */
@media (max-width:860px){
  .detail-hero,.detail-body,.split{grid-template-columns:1fr}
  .detail-side{position:static}
  .main-nav{display:none;position:absolute;top:64px;left:0;right:0;background:#fff;flex-direction:column;padding:12px;border-bottom:1px solid var(--line)}
  body.nav-open .main-nav{display:flex}
  .nav-toggle{display:block;margin-left:auto}
  .header-inner .btn{display:none}
  .searchbox{flex-direction:column}
}