/* ============================================================
   Funnelek — ALOLDAL (VILÁGOS téma). Csak a lessons/*.html linkeli.
   Palettája a jóváhagyott design-fájlból (funnelek-real.html).
   ============================================================ */
:root{
  --canvas:#f5f4f1; --fig:#f5f4f1; --fig-bd:#e4e2e0; --cont-bd:#ececec;
  --ink:#15151a; --gray:#8a8a90; --line:#e8e6e2; --muted:#55555c;
  --blue-s:#6ea8e0; --blue-bg:#dbeafe; --blue-ink:#2f6aa6;
  --purple-ink:#5b3ea8; --purple-s:#a888d8; --purple-bg:#c9b6ec;
  --amber-bg:#f7c96a; --amber-s:#d9a63f; --amber-ink:#5a4413;
  --font:Arial,"Helvetica Neue",Helvetica,sans-serif;
  --mono:"IBM Plex Mono","SF Mono",ui-monospace,Menlo,monospace;
  --maxw:1180px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--canvas);color:var(--ink);font-family:var(--font);line-height:1.55;-webkit-font-smoothing:antialiased}
img{max-width:100%}
a{color:inherit}

.wrap{max-width:var(--maxw);margin:0 auto;padding:0 26px 68px}

/* ---------- LESSON PAGE ---------- */
.breadcrumb{padding:30px 4px 0;font-family:var(--mono);font-size:.78rem;letter-spacing:.02em;color:var(--gray)}
.breadcrumb a{color:var(--gray);text-decoration:none;transition:color .15s ease}
.breadcrumb a:hover{color:var(--ink)}
.breadcrumb .sep{margin:0 .5em;color:#c9c7c2}
.lesson-hero{padding:22px 4px 6px}
.lesson-hero h1{font-size:clamp(1.8rem,4.5vw,2.5rem);line-height:1.1;letter-spacing:-.025em;margin:0 0 14px;font-weight:800;color:var(--ink)}
.lesson-sub{color:var(--muted);font-size:1.05rem;max-width:64ch;margin:0}

/* ---------- VIDEÓ-HELY (fekete lejátszó, fehér play) ---------- */
.vblock{margin:26px auto 0;max-width:900px}
.video-slot{position:relative;aspect-ratio:16/9;border:1px solid #1b1b20;border-radius:16px;background:#0a0a0a;display:grid;place-items:center;overflow:hidden;cursor:default}
.vs-inner{position:relative;text-align:center;z-index:1;padding:16px}
.play{width:74px;height:74px;border-radius:50%;background:#fff;border:1px solid #fff;display:grid;place-items:center;margin:0 auto 16px;box-shadow:0 10px 34px rgba(0,0,0,.4);transition:transform .18s ease}
.play::after{content:"";border-left:20px solid #0a0a0a;border-top:12px solid transparent;border-bottom:12px solid transparent;margin-left:5px}
.vs-badge{display:inline-flex;align-items:center;gap:8px;font-family:var(--mono);font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;color:#b8b8c0}
.vs-badge .dot{width:6px;height:6px;border-radius:50%;background:#8a8a90}
.vs-note{color:var(--gray);font-size:.86rem;margin:14px 2px 0;max-width:62ch}

/* ---------- DIAGRAM FIGURE ---------- */
.wf-diagram-fig{margin:26px auto 0;max-width:100%;background:var(--fig);border:1px solid var(--fig-bd);border-radius:16px;padding:clamp(1rem,2vw,1.5rem)}
.wf-diagram-fig img{width:100%;height:auto;display:block;border-radius:10px}
.wf-diagram-fig figcaption{margin-top:.9rem;font-family:var(--mono);font-size:12px;letter-spacing:.04em;color:var(--gray);text-align:center;text-transform:uppercase}

/* ---------- LESSON CONTENT ---------- */
.lesson-content{max-width:100%;margin:34px auto 0;font-size:1.02rem;color:#2c2c33}
.lesson-content h2{font-size:1.5rem;letter-spacing:-.02em;margin:34px 0 12px;font-weight:800;color:var(--ink)}
.lesson-content h2:first-child{margin-top:0}
.lesson-content h3{font-size:1.16rem;letter-spacing:-.01em;margin:28px 0 10px;font-weight:700;color:var(--ink)}
.lesson-content h4{font-size:1.02rem;margin:0 0 8px;font-weight:700;color:var(--ink)}
.lesson-content p{margin:0 0 14px;line-height:1.65}
.lesson-content ul{margin:0 0 16px;padding:0;list-style:none}
.lesson-content li{position:relative;padding:0 0 0 22px;margin:0 0 9px;line-height:1.6}
.lesson-content li::before{content:"";position:absolute;left:2px;top:.62em;width:6px;height:6px;border-radius:50%;background:var(--purple-s)}
.lesson-content a{color:var(--blue-ink)}
.lesson-homework{margin-top:28px;background:#fbfbfc;border:1px solid var(--cont-bd);border-left:3px solid var(--amber-s);border-radius:12px;padding:20px 22px}
.lesson-homework h4{color:var(--amber-ink)}
.lesson-homework p{margin-bottom:10px}
.lesson-homework ul li::before{background:var(--amber-s)}

/* ---------- ELŐZŐ / KÖVETKEZŐ LECKE-NAV (világos kártyás) ---------- */
.lesson-nav{margin:40px 0 4px;display:grid;grid-template-columns:1fr 1fr;gap:14px}
.lesson-nav a{display:flex;flex-direction:column;gap:6px;padding:18px 22px;border:1px solid var(--cont-bd);border-radius:14px;background:#fbfbfc;text-decoration:none;color:var(--ink);transition:background .2s ease,border-color .2s ease,transform .2s ease}
.lesson-nav a:hover{background:#fff;border-color:#d7d5d0;transform:translateY(-1px)}
.lesson-nav .nav-label{font-family:var(--mono);font-size:.7rem;letter-spacing:.11em;text-transform:uppercase;color:var(--gray)}
.lesson-nav .nav-title{font-size:1.06rem;font-weight:700;letter-spacing:-.01em;color:var(--ink);line-height:1.25}
.lesson-nav a.next{text-align:right;align-items:flex-end}
.lesson-nav .nav-spacer{display:block}
@media (max-width:560px){
  .lesson-nav{grid-template-columns:1fr}
  .lesson-nav a.next{text-align:left;align-items:flex-start}
  .lesson-nav .nav-spacer{display:none}
}

/* ============================================================
   BN CHROME — VILÁGOS téma (header + topbar + footer) az aloldalakon
   ============================================================ */
.bn-logo{display:inline-flex;align-items:center;gap:.46em;font-weight:600;letter-spacing:-.015em;line-height:1;white-space:nowrap}
.bn-logo .bn-arrow{height:.66em;width:auto;display:block;flex:none}

.bnx-topbar{background:#15151a;color:#b9b8c0;text-align:center;font-family:var(--mono);font-size:12px;letter-spacing:.05em;padding:.55rem 1rem}
.bnx-topbar strong{color:#f5f4f1;font-weight:500}

.bnx-header{position:sticky;top:0;z-index:1000;background:rgba(245,244,241,.92);backdrop-filter:saturate(1.1) blur(10px);-webkit-backdrop-filter:saturate(1.1) blur(10px);border-bottom:1px solid var(--fig-bd);transition:background .25s ease,border-color .25s ease}
.bnx-inner{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:1.5rem;max-width:112.5rem;margin:0 auto;height:70px;padding:0 2rem}
.bnx-brand{justify-self:start;display:inline-flex;align-items:center;text-decoration:none}
.bnx-brand .bn-logo{font-size:23px;color:#0b0b0d}
.bnx-nav{justify-self:center;display:flex;align-items:center;gap:clamp(1rem,2.2vw,2.1rem)}
.bnx-link{display:inline-flex;align-items:center;gap:.34em;background:none;border:0;cursor:pointer;padding:0;font:inherit;font-size:15px;font-weight:450;line-height:1;color:#5a5a60;text-decoration:none;letter-spacing:-.01em;transition:color .18s ease;white-space:nowrap}
.bnx-link:hover{color:#0b0b0d}
.bnx-caret{transition:transform .2s ease;opacity:.7}
.bnx-item{position:relative}
.bnx-item.is-open .bnx-caret{transform:rotate(180deg)}
.bnx-dropdown{position:absolute;top:calc(100% + 14px);left:50%;transform:translateX(-50%) translateY(6px);display:grid;grid-auto-flow:column;gap:1.75rem;min-width:max-content;background:#fff;border:1px solid var(--fig-bd);border-radius:14px;box-shadow:0 18px 50px -12px rgba(20,20,26,.18);padding:1.15rem 1.25rem;opacity:0;visibility:hidden;pointer-events:none;transition:opacity .18s ease,transform .18s ease;z-index:1001}
.bnx-item:hover .bnx-dropdown,.bnx-item.is-open .bnx-dropdown{opacity:1;visibility:visible;pointer-events:auto;transform:translateX(-50%) translateY(0)}
.bnx-dropdown::before{content:"";position:absolute;top:-16px;left:0;right:0;height:16px}
.bnx-col{display:flex;flex-direction:column;gap:.15rem;min-width:12.5rem}
.bnx-drop-link{display:flex;flex-direction:column;gap:.12rem;padding:.5rem .55rem;border-radius:9px;text-decoration:none;color:#1a1a1f;font-size:14px;font-weight:500;transition:background .15s ease}
.bnx-drop-link:hover{background:#f3f2ef}
.bnx-drop-link.is-current{background:var(--blue-bg)}
.bnx-drop-link.is-current span:first-child{color:var(--blue-ink)}
.bnx-drop-sub{font-size:12px;font-weight:400;color:#8a888a;line-height:1.3}
.bnx-actions{justify-self:end;display:inline-flex;align-items:center;gap:.75rem}
.bnx-cta{display:inline-flex;align-items:center;justify-content:center;height:40px;padding:0 1.15rem;border-radius:999px;background:#15151a;color:#f5f4f1;font-size:14px;font-weight:500;letter-spacing:-.01em;text-decoration:none;white-space:nowrap;transition:background .18s ease,transform .18s ease}
.bnx-cta:hover{background:#000;transform:translateY(-1px)}
.bnx-burger{display:none;flex-direction:column;justify-content:center;gap:5px;width:42px;height:42px;padding:0 10px;background:none;border:1px solid #e0ded9;border-radius:10px;cursor:pointer}
.bnx-burger span{display:block;height:1.6px;background:#15151a;border-radius:2px;transition:.2s}
.bnx-mobile{display:none}
.bnx-header.is-scrolled{background:rgba(255,255,255,.94);border-bottom-color:#dedcd7}

@media (max-width:991px){
  .bnx-inner{grid-template-columns:1fr auto;height:62px}
  .bnx-nav{display:none}
  .bnx-cta:not(.bnx-m-cta){display:none}
  .bnx-actions{justify-self:end}
  .bnx-burger{display:flex}
  .bnx-mobile{display:flex;flex-direction:column;gap:.15rem;padding:1rem clamp(1rem,4vw,2.5rem) 1.5rem;background:#f5f4f1;border-top:1px solid var(--fig-bd);max-height:calc(100vh - 62px);overflow-y:auto}
  .bnx-mobile[hidden]{display:none}
  .bnx-m-link{padding:.7rem .2rem;font-size:17px;font-weight:500;color:#15151a;text-decoration:none;border-bottom:1px solid #eceae6}
  .bnx-m-label{margin:1rem 0 .2rem;padding:0 .2rem;font-size:11px;font-weight:600;letter-spacing:.09em;text-transform:uppercase;color:#a6a4a0}
  .bnx-m-sublink{padding:.5rem .2rem;font-size:15px;color:#4a4a50;text-decoration:none}
  .bnx-m-sublink.bnx-m-current{color:var(--blue-ink);font-weight:600}
  .bnx-m-cta{display:inline-flex;margin-top:1.25rem;height:46px}
}

/* ---------- FOOTER (világos) ---------- */
.bnx-footer{background:#fbfbfc;border-top:1px solid var(--fig-bd);color:#55555c;padding:clamp(3rem,6vw,5rem) 2rem 2rem}
.bnx-foot-inner{max-width:112.5rem;margin:0 auto;display:grid;grid-template-columns:1.3fr 2fr;gap:clamp(2rem,5vw,4rem)}
.bnx-foot-brand .bn-logo{font-size:clamp(30px,4vw,42px);color:#15151a}
.bnx-foot-tag{margin:1.1rem 0 1.6rem;max-width:24rem;font-size:14px;line-height:1.6;color:#8a888a}
.bnx-foot-cols{display:grid;grid-template-columns:repeat(3,1fr);gap:1.5rem}
.bnx-foot-col{display:flex;flex-direction:column;gap:.6rem}
.bnx-foot-h{margin:0 0 .35rem;font-size:11px;font-weight:600;letter-spacing:.09em;text-transform:uppercase;color:#a6a4a0}
.bnx-foot-col a{color:#55555c;text-decoration:none;font-size:14px;transition:color .15s ease}
.bnx-foot-col a:hover{color:#15151a}
.bnx-foot-bottom{max-width:112.5rem;margin:clamp(2.5rem,5vw,3.5rem) auto 0;padding-top:1.5rem;border-top:1px solid var(--line);display:flex;flex-wrap:wrap;gap:.5rem 1.5rem;justify-content:space-between;font-size:13px;color:#8a888a}
.bnx-foot-bottom a{color:#55555c;text-decoration:none}
.bnx-foot-bottom a:hover{color:#15151a}

@media (max-width:860px){
  .bnx-foot-inner{grid-template-columns:1fr;gap:2.25rem}
  .bnx-foot-cols{grid-template-columns:repeat(2,1fr);gap:1.75rem 1rem}
}
@media (max-width:479px){ .bnx-foot-cols{grid-template-columns:1fr 1fr} }