/* ═══════════════════════════════════════════════════════════════
   ICT FAST LANE — ONE SITE THEME (all public pages)
   Pure black · white primary buttons · red accent · Inter
   ═══════════════════════════════════════════════════════════════ */
:root{
  --bg:#000;--bg-page:#0a0a0a;--card:#111;--card-hover:#171717;--elevated:#1a1a1a;
  --line:#222;--line-lit:#333;--text:#fff;--muted:#8f8f8f;--dim:#666;
  --red:#e3262e;--red-2:#ff4a52;--red-soft:rgba(227,38,46,.12);
  --r-sm:8px;--r-md:12px;--r-lg:16px;--r-xl:22px;--r-full:999px;
  --ease:cubic-bezier(.16,1,.3,1);--header-h:64px;
  --font:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;background:var(--bg);scroll-padding-top:calc(var(--header-h) + 12px)}
body{margin:0;background:var(--bg);color:var(--muted);font-family:var(--font);line-height:1.6;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;overflow-x:hidden}
body.ifl-menu-open{overflow:hidden}
a{color:inherit;text-decoration:none}
img{max-width:100%}
button{font-family:inherit}
h1,h2,h3,h4{color:var(--text);letter-spacing:-.03em;line-height:1.15;margin:0}
.ifl-wrap{width:min(1140px,calc(100% - 48px));margin:0 auto}
:focus-visible{outline:2px solid var(--red-2);outline-offset:3px;border-radius:4px}
[hidden]{display:none!important}

/* ── Buttons ── */
.ifl-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:42px;padding:0 18px;border:1px solid transparent;border-radius:var(--r-full);font:500 14px var(--font);cursor:pointer;transition:background .2s,border-color .2s,box-shadow .2s,transform .1s;white-space:nowrap}
.ifl-btn:active{transform:scale(.97)}
.ifl-btn-white{background:#fff;color:#000;border-color:#fff;box-shadow:0 0 20px rgba(255,255,255,.12)}
.ifl-btn-white:hover{background:#e7e7e7;border-color:#e7e7e7}
.ifl-btn-red{background:var(--red);color:#fff}
.ifl-btn-red:hover{background:var(--red-2)}
.ifl-btn-ghost{background:var(--card);color:var(--text);border-color:var(--line)}
.ifl-btn-ghost:hover{background:var(--elevated);border-color:var(--line-lit)}

/* ── Header ── */
.ifl-header{position:fixed;inset:0 0 auto;z-index:1000;height:var(--header-h);background:rgba(0,0,0,.72);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);border-bottom:1px solid transparent;transition:border-color .3s var(--ease),background .3s}
.ifl-header.is-scrolled{border-bottom-color:var(--line);background:rgba(0,0,0,.86)}
.ifl-header-inner{height:100%;display:flex;align-items:center;justify-content:space-between;gap:24px}
.ifl-brand{display:flex;align-items:center;flex:0 0 auto}
.ifl-brand img{display:block;width:170px;height:auto;max-height:44px;object-fit:contain;filter:drop-shadow(0 3px 14px rgba(255,255,255,.12))}
.ifl-nav{display:flex;align-items:stretch;align-self:stretch;gap:4px}
.ifl-nav>a,.ifl-nav-extra>a,.ifl-drop-trigger{display:inline-flex;align-items:center;gap:6px;padding:0 12px;color:var(--muted);font-size:14px;font-weight:400;transition:color .2s}
.ifl-nav-extra{display:flex;align-items:stretch}
.ifl-nav>a:hover,.ifl-nav-extra>a:hover,.ifl-drop-trigger:hover,.ifl-drop.is-open .ifl-drop-trigger{color:var(--text)}
.ifl-nav a.is-active{color:var(--text)}
.ifl-actions{display:flex;align-items:center;gap:10px}
.ifl-login{min-height:38px;padding:0 16px;font-size:13px}

/* ── Dropdown (fix: no gap between button and menu, so it never closes on the way down) ── */
.ifl-drop{position:relative;display:flex;align-items:stretch}
.ifl-drop-trigger i{font-size:10px;transition:transform .2s var(--ease)}
.ifl-drop.is-open .ifl-drop-trigger i{transform:rotate(180deg)}
.ifl-drop-menu{position:absolute;top:100%;left:50%;min-width:270px;padding-top:6px;/* transparent bridge = hover area */
  transform:translate(-50%,6px);opacity:0;visibility:hidden;pointer-events:none;transition:opacity .18s var(--ease),transform .18s var(--ease),visibility 0s linear .18s;z-index:1001}
.ifl-drop.is-open .ifl-drop-menu{transform:translate(-50%,0);opacity:1;visibility:visible;pointer-events:auto;transition-delay:0s}
.ifl-drop-panel{padding:8px;background:#0f0f0f;border:1px solid var(--line-lit);border-radius:var(--r-md);box-shadow:0 24px 60px rgba(0,0,0,.65)}
.ifl-drop-panel a{display:block;padding:10px 12px;border-radius:var(--r-sm);color:#bdbdbd;font-size:13px;font-weight:500;white-space:nowrap;transition:background .15s,color .15s}
.ifl-drop-panel a:hover,.ifl-drop-panel a:focus{background:var(--red);color:#fff;outline:none}
/* no-JS fallback */
.no-js .ifl-drop:hover .ifl-drop-menu,.ifl-drop:has(:focus-visible) .ifl-drop-menu{transform:translate(-50%,0);opacity:1;visibility:visible;pointer-events:auto;transition-delay:0s}

/* ── Mobile menu ── */
.ifl-menu-btn{display:none;width:40px;height:40px;border:1px solid var(--line);border-radius:10px;background:transparent;color:var(--text);font-size:17px;cursor:pointer}
.ifl-mobile{position:fixed;inset:var(--header-h) 0 0;z-index:999;overflow-y:auto;padding:12px 24px 40px;background:var(--bg);border-top:1px solid var(--line)}
.ifl-mobile>a,.ifl-mobile-toggle,#iflMobileExtra>a{display:flex;align-items:center;justify-content:space-between;width:100%;padding:16px 0;border:0;border-bottom:1px solid var(--line);background:none;color:#c9c9c9;font:500 18px var(--font);text-align:left;cursor:pointer}
.ifl-mobile-toggle i{font-size:13px;transition:transform .2s}
.ifl-mobile-toggle.is-open i{transform:rotate(180deg)}
.ifl-mobile-sub{padding:4px 0 8px 14px;border-bottom:1px solid var(--line)}
.ifl-mobile-sub a{display:block;padding:11px 0;color:var(--muted);font-size:15px}
.ifl-mobile-sub a:hover,.ifl-mobile>a:hover{color:#fff}
.ifl-mobile .ifl-mobile-login{display:flex;justify-content:center;min-height:48px;margin-top:26px;padding:0 18px;border:0;border-radius:var(--r-full);background:#fff;color:#000;font-size:15px;font-weight:600}

/* ── Page hero (inner pages) ── */
.ifl-hero{position:relative;overflow:hidden;padding:calc(var(--header-h) + 72px) 0 56px;background:radial-gradient(ellipse at 50% -10%,rgba(227,38,46,.16),transparent 60%),var(--bg);border-bottom:1px solid var(--line)}
.ifl-hero::after{content:"";position:absolute;inset:0;pointer-events:none;background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);background-size:48px 48px;opacity:.25;-webkit-mask-image:radial-gradient(ellipse at 50% 0%,#000 10%,transparent 70%);mask-image:radial-gradient(ellipse at 50% 0%,#000 10%,transparent 70%)}
.ifl-hero>.ifl-wrap{position:relative;z-index:1}
.ifl-eyebrow{display:inline-flex;align-items:center;gap:8px;margin-bottom:18px;padding:5px 12px;border:1px solid var(--line);border-radius:var(--r-full);background:rgba(255,255,255,.04);color:#ff7a80;font-size:11px;font-weight:600;letter-spacing:.08em;text-transform:uppercase}
.ifl-hero h1{max-width:860px;font-size:clamp(34px,5.5vw,60px);font-weight:700;letter-spacing:-.045em;line-height:1.05}
.ifl-hero p{max-width:640px;margin:18px 0 0;color:#a3a3a3;font-size:clamp(15px,1.6vw,18px)}
.ifl-back{display:inline-flex;align-items:center;gap:8px;margin-bottom:22px;color:var(--muted);font-size:13px;font-weight:500}
.ifl-back:hover{color:#fff}

/* ── Sections / panels ── */
.ifl-main{padding:56px 0 110px;min-height:50vh}
.ifl-panel{background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);padding:30px}
.ifl-panel h2{font-size:22px;margin-bottom:12px}
.empty,.loading,.status{padding:48px 20px;color:var(--dim);text-align:center;font-size:14px}
.ifl-toolbar{display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;margin:0 0 26px}
.ifl-toolbar h2{font-size:24px}
.ifl-chips{display:flex;flex-wrap:wrap;gap:8px}
.ifl-chips a{padding:8px 14px;border:1px solid var(--line);border-radius:var(--r-full);background:var(--card);color:#a8a8a8;font-size:12.5px;font-weight:500;transition:.15s}
.ifl-chips a:hover{border-color:var(--line-lit);color:#fff}
.ifl-chips a.active{background:var(--red);border-color:var(--red);color:#fff}

/* ── Card grid (downloads, papers, related) ── */
.ifl-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.ifl-card{display:flex;flex-direction:column;overflow:hidden;background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);transition:border-color .2s,transform .2s var(--ease),background .2s}
.ifl-card:hover{border-color:var(--line-lit);background:var(--card-hover);transform:translateY(-3px)}
.ifl-card .thumb{display:grid;place-items:center;aspect-ratio:16/9;background:var(--elevated) center/cover no-repeat;border-bottom:1px solid var(--line);color:#ff6b72;font-size:30px}
.ifl-card .thumb[style*="background-image"] i{display:none}
.ifl-card .copy{display:flex;flex:1;flex-direction:column;gap:8px;padding:20px}
.ifl-card .meta{color:#ff7a80;font-size:11px;font-weight:600;letter-spacing:.06em;text-transform:uppercase}
.ifl-card h3{font-size:17px;font-weight:600;letter-spacing:-.02em}
.ifl-card p{margin:0;color:var(--muted);font-size:13.5px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.ifl-card .open{margin-top:auto;padding-top:8px;color:#d9d9d9;font-size:13px;font-weight:500}
.ifl-card:hover .open{color:#fff}

/* ── Detail page (download / paper) ── */
.ifl-detail{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:24px;align-items:start}
.ifl-detail.no-side{grid-template-columns:1fr}
.ifl-detail .description{white-space:pre-line;color:#b0b0b0}
.ifl-btn-row,.buttons{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.buttons .btn,.ifl-detail .download{display:inline-flex;align-items:center;gap:8px;min-height:42px;padding:0 18px;border:1px solid var(--line);border-radius:var(--r-full);background:var(--elevated);color:#fff;font-size:14px;font-weight:500;transition:.2s}
.buttons .btn:hover{border-color:var(--line-lit);background:#222}
.buttons .btn.primary,.ifl-detail .download{background:var(--red);border-color:var(--red)}
.buttons .btn.primary:hover,.ifl-detail .download:hover{background:var(--red-2)}
.video,.ifl-video{position:relative;margin-top:26px;aspect-ratio:16/9;overflow:hidden;border:1px solid var(--line);border-radius:var(--r-md);background:#000}
.video iframe,.ifl-video iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
.ifl-side{position:sticky;top:calc(var(--header-h) + 20px)}
.ifl-ad-label{display:block;margin:0 0 8px;color:var(--dim);font-size:9px;font-weight:700;letter-spacing:.14em;text-align:center;text-transform:uppercase}
.ifl-ad{overflow:hidden;border:1px solid var(--line);border-radius:var(--r-md);background:var(--card)}
.ifl-ad:empty{display:none}
.ifl-ad a,.ifl-ad img{display:block;width:100%;height:auto}
.ifl-ad-wide{margin-bottom:28px}
.ifl-related{margin-top:60px}
.ifl-related h2{font-size:22px;margin-bottom:20px}

/* ── Course / lesson pack pages ── */
.ifl-overview{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:28px;align-items:start}
.ifl-overview h1{font-size:clamp(30px,4.6vw,50px);font-weight:700;letter-spacing:-.045em;margin:4px 0 14px}
.ifl-overview p{margin:0;color:#a3a3a3;max-width:680px}
.ifl-buy{padding:24px;border:1px solid #3a1a1d;border-radius:var(--r-lg);background:linear-gradient(180deg,#170b0c,#0d0909)}
.ifl-buy small{color:#ff8a90;font-size:10px;font-weight:700;letter-spacing:.1em}
.ifl-buy strong{display:block;margin:8px 0 18px;color:#fff;font-size:26px;font-weight:700;letter-spacing:-.03em}
.ifl-buy .ifl-btn{width:100%}
.ifl-lessons{margin-top:24px}
.ifl-lessons>p{margin:6px 0 18px;font-size:13.5px}
.lesson{display:grid;grid-template-columns:44px minmax(0,1fr) auto;gap:14px;align-items:center;padding:16px 0;border-top:1px solid var(--line)}
.lesson-num,.lesson .number{display:grid;place-items:center;width:38px;height:38px;border-radius:10px;background:var(--red-soft);color:#ff6b72;font-size:12px;font-weight:700}
.lesson strong{display:block;color:#fff;font-size:14.5px;font-weight:600}
.lesson small{display:block;margin-top:3px;color:var(--dim);font-size:12px}
.lesson>a,.lesson .watch{display:inline-flex;align-items:center;justify-content:center;gap:7px;min-width:96px;padding:9px 14px;border-radius:var(--r-full);background:var(--red);color:#fff;font-size:12.5px;font-weight:600;border:0;cursor:pointer}
.lesson>a:hover,.lesson .watch:hover{background:var(--red-2)}
.lesson .locked,.lesson button.locked{display:inline-flex;align-items:center;justify-content:center;gap:7px;min-width:96px;padding:9px 14px;border:1px solid var(--line);border-radius:var(--r-full);background:var(--elevated);color:#8a8a8a;font-size:12.5px;font-weight:600;cursor:pointer}

/* ── Content pages from the Site Builder ── */
.ifl-prose{color:#bdbdbd;font-size:16px;line-height:1.8}
.ifl-prose h1,.ifl-prose h2,.ifl-prose h3{margin:1.4em 0 .5em}
.ifl-prose p{margin:0 0 1em}
.ifl-prose a{color:#ff7d83;text-decoration:underline;text-underline-offset:3px}
.ifl-prose img{height:auto;border-radius:var(--r-md)}
.ifl-prose table{width:100%;border-collapse:collapse;margin:1em 0}
.ifl-prose th,.ifl-prose td{padding:10px;border:1px solid var(--line-lit)}
.ifl-prose blockquote{margin:1em 0;padding:12px 18px;border-left:3px solid var(--red);background:var(--elevated);color:#aaa}

/* ── Footer ── */
.ifl-footer{position:relative;overflow:hidden;isolation:isolate;padding:80px 0 40px;border-top:1px solid var(--line);background:#030303 url("../ft.jpg") center/cover no-repeat;color:#d7d7d7}
.ifl-footer::before{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(180deg,rgba(0,0,0,.82),rgba(0,0,0,.7) 38%,rgba(0,0,0,.92)),radial-gradient(circle at 75% 20%,rgba(227,38,46,.18),transparent 38%)}
.ifl-footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:48px;margin-bottom:56px}
.ifl-footer-brand .ifl-brand{margin-bottom:16px}
.ifl-footer p{margin:0;max-width:310px;color:#a5a5a5;font-size:14px;line-height:1.7}
.ifl-footer h4{margin:0 0 18px;color:#fff;font-size:14px;font-weight:600;letter-spacing:0}
.ifl-footer ul{display:flex;flex-direction:column;gap:12px;margin:0;padding:0;list-style:none}
.ifl-footer a{color:#a5a5a5;font-size:14px;transition:color .2s}
.ifl-footer a:hover{color:#fff}
.ifl-footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:20px;padding-top:24px;border-top:1px solid rgba(255,255,255,.12);color:#777;font-size:13px}
.ifl-socials{display:flex;gap:16px}
.ifl-socials a{font-size:17px}

/* ── Responsive ── */
@media (max-width:980px){.ifl-grid{grid-template-columns:repeat(2,1fr)}.ifl-detail,.ifl-overview{grid-template-columns:1fr}.ifl-side{position:static}}
@media (max-width:900px){
  .ifl-nav,.ifl-login{display:none}
  .ifl-menu-btn{display:inline-grid;place-items:center}
  .ifl-footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:600px){
  .ifl-wrap{width:calc(100% - 32px)}
  .ifl-brand img{width:148px}
  .ifl-grid{grid-template-columns:1fr}
  .ifl-hero{padding:calc(var(--header-h) + 48px) 0 40px}
  .ifl-panel{padding:22px 18px}
  .lesson{grid-template-columns:36px minmax(0,1fr)}
  .lesson>a,.lesson>.watch,.lesson>.locked,.lesson>button{grid-column:2;justify-self:start}
  .ifl-footer-grid{grid-template-columns:1fr;gap:30px;margin-bottom:36px}
  .ifl-footer-bottom{flex-direction:column;text-align:center}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important;scroll-behavior:auto!important}}