/* ==========================================================================
   AlanDavid.us — Design System
   Palette: charcoal ink + steel-blue (trust) + brass/amber (insight)
   Display: Newsreader (editorial serif)  /  Body: Inter
   ========================================================================== */

:root{
  --ink:#0a0b0d;
  --ink-2:#101216;
  --panel:rgba(255,255,255,.045);
  --panel-2:rgba(255,255,255,.02);
  --text:#f2f0ea;
  --muted:#a8a9ad;
  --muted-2:#7d7e83;
  --line:rgba(143,180,217,.14);
  --line-2:rgba(255,255,255,.08);

  --steel:#4f7cac;
  --steel-hi:#8fb4d9;
  --steel-deep:#2c4a6e;
  --amber:#c98a3e;
  --amber-hi:#f0b768;
  --amber-deep:#8a5c24;

  --shadow:0 30px 90px rgba(0,0,0,.55);
  --shadow-lg:0 50px 140px rgba(0,0,0,.62);
  --shadow-steel:0 18px 50px rgba(79,124,172,.22);

  --max:1240px;
  --radius:24px;
  --ease:cubic-bezier(.16,1,.3,1);
  --dur-fast:180ms;
  --dur:420ms;
  --dur-slow:900ms;

  --font-display:'Newsreader',Georgia,'Times New Roman',serif;
  --font-body:'Inter',Arial,Helvetica,sans-serif;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important;scroll-behavior:auto!important}
}

body{
  margin:0;font-family:var(--font-body);background:var(--ink);color:var(--text);
  line-height:1.65;overflow-x:hidden;position:relative;
}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
.wrap{width:min(100% - 48px,var(--max));margin:auto;position:relative}

/* ambient atmosphere */
body::before,body::after{
  content:'';position:fixed;z-index:0;pointer-events:none;border-radius:50%;
  filter:blur(100px);opacity:.35;will-change:transform;
}
body::before{width:640px;height:640px;top:-220px;right:-160px;background:radial-gradient(circle,rgba(79,124,172,.34),transparent 68%);animation:driftA 26s ease-in-out infinite;}
body::after{width:560px;height:560px;bottom:-200px;left:-140px;background:radial-gradient(circle,rgba(201,138,62,.28),transparent 68%);animation:driftB 32s ease-in-out infinite;}
@keyframes driftA{0%,100%{transform:translate(0,0) scale(1)}50%{transform:translate(-60px,50px) scale(1.12)}}
@keyframes driftB{0%,100%{transform:translate(0,0) scale(1)}50%{transform:translate(50px,-40px) scale(1.1)}}

.grid-veil{
  position:fixed;inset:0;z-index:0;pointer-events:none;
  background-image:linear-gradient(rgba(143,180,217,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(143,180,217,.05) 1px,transparent 1px);
  background-size:64px 64px;mask-image:radial-gradient(ellipse 80% 60% at 50% 0%,#000 0%,transparent 72%);opacity:.5;
}
.grain{
  position:fixed;inset:0;z-index:1;pointer-events:none;opacity:.045;mix-blend-mode:overlay;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}
header,main,footer{position:relative;z-index:2}
::selection{background:var(--amber);color:#1a1204}
::-webkit-scrollbar{width:11px}
::-webkit-scrollbar-track{background:var(--ink)}
::-webkit-scrollbar-thumb{background:linear-gradient(var(--steel-deep),var(--steel));border-radius:99px;border:3px solid var(--ink)}
html{scrollbar-color:var(--steel-deep) var(--ink);scrollbar-width:thin}

/* ---------- type ---------- */
h1,h2,h3{font-family:var(--font-display);font-weight:560;color:var(--text)}
h1,h2,h3,p{margin-top:0}
h1{font-size:clamp(38px,5.6vw,68px);line-height:1.02;letter-spacing:-.02em;margin-bottom:22px}
h2{font-size:clamp(28px,3.6vw,42px);line-height:1.08;letter-spacing:-.015em;margin-bottom:16px}
h3{font-size:21px;line-height:1.2;margin-bottom:10px;font-weight:600}
p{color:var(--muted)}
.lead{font-size:19px;max-width:720px;color:#d8d6cf}
.eyebrow{
  position:relative;display:inline-flex;align-items:center;gap:9px;margin-bottom:16px;
  color:var(--amber-hi);font-size:12px;font-weight:800;letter-spacing:.16em;text-transform:uppercase;font-family:var(--font-body);
}
.eyebrow::before{content:'';width:7px;height:7px;border-radius:50%;background:radial-gradient(circle,var(--amber-hi),var(--amber-deep));box-shadow:0 0 0 3px rgba(201,138,62,.16);animation:pulseDot 2.4s ease-in-out infinite;}
@keyframes pulseDot{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.55;transform:scale(.75)}}
.tag-steel{color:var(--steel-hi)}
.tag-steel::before{background:radial-gradient(circle,var(--steel-hi),var(--steel-deep));box-shadow:0 0 0 3px rgba(143,180,217,.16)}

/* ---------- buttons ---------- */
.btn{
  position:relative;display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:52px;padding:0 26px;border-radius:10px;font-weight:700;font-family:var(--font-body);
  font-size:15px;border:1px solid transparent;text-align:center;overflow:hidden;isolation:isolate;
  transition:transform var(--dur-fast) var(--ease),box-shadow var(--dur-fast) var(--ease),border-color var(--dur-fast) var(--ease),background var(--dur-fast) var(--ease);
}
.btn:hover{transform:translateY(-2px)}
.btn::after{content:'';position:absolute;inset:0;z-index:-1;background:linear-gradient(115deg,transparent 30%,rgba(255,255,255,.35) 48%,transparent 66%);transform:translateX(-130%);transition:transform .7s var(--ease);}
.btn:hover::after{transform:translateX(130%)}
.btn-primary{background:linear-gradient(135deg,var(--amber-hi),var(--amber) 55%,var(--amber-deep));color:#1a1204;box-shadow:var(--shadow-steel)}
.btn-primary:hover{box-shadow:0 22px 60px rgba(201,138,62,.34)}
.btn-secondary{background:rgba(255,255,255,.035);border-color:var(--line-2);color:var(--text);backdrop-filter:blur(8px)}
.btn-secondary:hover{background:rgba(255,255,255,.07);border-color:rgba(143,180,217,.35)}
.btn-steel{background:linear-gradient(135deg,var(--steel-hi),var(--steel) 55%,var(--steel-deep));color:#08131f}
.btn-outline{border:1px solid var(--line-2);color:var(--text)}
.btn-outline:hover{border-color:rgba(201,138,62,.4);background:rgba(201,138,62,.06)}
.btn-block{width:100%}

/* ---------- header / nav ---------- */
header{position:sticky;top:0;z-index:1000;background:rgba(10,11,13,.78);backdrop-filter:blur(18px) saturate(140%);border-bottom:1px solid var(--line-2);transition:background var(--dur) var(--ease);}
header::after{content:'';position:absolute;left:0;right:0;bottom:-1px;height:1px;background:linear-gradient(90deg,transparent,var(--steel) 20%,var(--amber-hi) 50%,var(--steel) 80%,transparent);opacity:.5;background-size:200% 100%;animation:shimmer 9s linear infinite;}
@keyframes shimmer{0%{background-position:0% 0}100%{background-position:200% 0}}
header.is-scrolled{background:rgba(10,11,13,.94)}
.nav{min-height:84px;display:flex;align-items:center;gap:20px;transition:min-height var(--dur) var(--ease)}
header.is-scrolled .nav{min-height:66px}
.brand{display:flex;align-items:center;flex-shrink:0}
.brand img{height:40px;width:auto;transition:height var(--dur) var(--ease)}
header.is-scrolled .brand img{height:32px}
.nav-menu{margin-left:24px;display:flex}
.nav-menu ul{list-style:none;margin:0;padding:0;display:flex;align-items:center;gap:2px;flex-wrap:wrap}
.nav-menu>ul>li{position:relative}
.nav-menu a{position:relative;display:block;padding:10px 12px;color:var(--muted);font-size:13.5px;font-weight:500;white-space:nowrap;transition:color var(--dur-fast)}
.nav-menu>ul>li>a::after{content:'';position:absolute;left:12px;right:12px;bottom:4px;height:1px;background:linear-gradient(90deg,var(--amber),var(--steel-hi));transform:scaleX(0);transform-origin:left;transition:transform var(--dur) var(--ease);}
.nav-menu a:hover{color:var(--text)}
.nav-menu>ul>li>a:hover::after{transform:scaleX(1)}
.mega{
  position:absolute;top:100%;left:0;min-width:280px;max-width:420px;background:#111318;border:1px solid var(--line);
  border-radius:16px;padding:10px!important;box-shadow:var(--shadow-lg);opacity:0;visibility:hidden;
  transform:translateY(8px) scale(.98);transition:opacity var(--dur) var(--ease),transform var(--dur) var(--ease),visibility var(--dur);
  display:grid!important;grid-template-columns:1fr;gap:0;transform-origin:top left;list-style:none;margin:0;
}
.has-mega:hover .mega{opacity:1;visibility:visible;transform:translateY(0) scale(1)}
.mega li a{padding:9px 12px;border-radius:9px;font-size:13px}
.mega li a::after{display:none}
.mega li a:hover{background:rgba(79,124,172,.1);color:var(--steel-hi)}
.nav-actions{display:flex;gap:10px;align-items:center;margin-left:auto}
.nav-actions .btn{min-height:42px;font-size:13px;padding:0 18px}
.brochure-link{font-size:12.5px;color:var(--muted-2);white-space:nowrap}
.brochure-link:hover{color:var(--amber-hi)}
.mobile-menu-toggle{display:none;background:none;border:0;margin-left:auto;padding:10px;cursor:pointer}
.mobile-menu-toggle span{display:block;width:24px;height:2px;background:var(--text);margin:5px 0;transition:transform var(--dur-fast)}

/* ---------- hero ---------- */
.hero{padding:64px 0 60px}
.hero-copy{max-width:760px}
.hero-copy .eyebrow,.hero-copy h1,.hero-copy .lead,.hero-copy .hero-actions,.hero-copy .hero-note{animation:heroIn var(--dur-slow) var(--ease) both}
.hero-copy .eyebrow{animation-delay:.05s}
.hero-copy h1{animation-delay:.14s}
.hero-copy .lead{animation-delay:.26s}
.hero-copy .hero-actions{animation-delay:.38s}
.hero-copy .hero-note{animation-delay:.48s}
@keyframes heroIn{from{opacity:0;transform:translateY(22px)}to{opacity:1;transform:translateY(0)}}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin:26px 0 14px}
.hero-note{font-size:14px;color:var(--muted)}

/* ---------- section basics ---------- */
.section{padding:76px 0}
.section-alt{background:var(--ink-2)}
.section-head{max-width:720px;margin-bottom:40px}

/* ---------- generic card grids ---------- */
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.grid-6{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}

.card,.statement{
  position:relative;padding:30px;border-radius:var(--radius);
  background:linear-gradient(180deg,var(--panel),var(--panel-2));border:1px solid var(--line-2);box-shadow:var(--shadow);
}
.card{overflow:hidden;transition:transform var(--dur) var(--ease),border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);}
.card::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--amber),var(--steel-hi));transform:scaleX(0);transform-origin:left;transition:transform var(--dur-slow) var(--ease);}
.card:hover{transform:translateY(-6px);border-color:rgba(143,180,217,.28);box-shadow:var(--shadow-lg)}
.card:hover::before{transform:scaleX(1)}
.card a.card-link{color:var(--amber-hi);font-weight:700;display:inline-flex;align-items:center;gap:6px;margin-top:8px}
.card a.card-link::after{content:'\2192';transition:transform var(--dur-fast) var(--ease)}
.card a.card-link:hover::after{transform:translateX(4px)}
.card img{border-radius:14px;margin-bottom:16px;width:100%;height:auto}
.card .socials{display:flex;gap:10px;margin-top:14px}
.card .socials a{width:32px;height:32px;border-radius:50%;border:1px solid var(--line-2);display:flex;align-items:center;justify-content:center;font-size:12px;color:var(--muted);transition:border-color var(--dur-fast),color var(--dur-fast)}
.card .socials a:hover{border-color:var(--steel-hi);color:var(--steel-hi)}

/* framework selector cards (Not Sure Where to Begin) */
.framework-item{display:flex;flex-direction:column;gap:10px}
.framework-item .k{font-size:14px;color:var(--muted)}
.framework-item .v{font-family:var(--font-display);font-size:19px;font-weight:600;color:var(--text)}

/* ---------- narrative / prose sections ---------- */
.prose{max-width:74ch}
.prose p{color:var(--muted);font-size:16px;margin:0 0 16px;line-height:1.75}
.prose ul{margin:0 0 18px;padding-left:22px;color:var(--muted)}
.prose li{margin:8px 0}
.prose h3{margin-top:8px}
.prose strong{color:var(--text)}
.split{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}

/* step list */
.steps{counter-reset:step;display:grid;gap:20px}
.step{position:relative;padding:24px 24px 24px 76px;border-radius:18px;background:var(--panel);border:1px solid var(--line-2)}
.step::before{counter-increment:step;content:counter(step);position:absolute;left:20px;top:24px;width:38px;height:38px;border-radius:50%;background:linear-gradient(135deg,var(--amber-hi),var(--amber-deep));color:#1a1204;font-weight:800;font-family:var(--font-display);display:flex;align-items:center;justify-content:center;font-size:17px}
.step h3{margin-bottom:6px}
.step p{margin:0}

/* comparison list */
.check-list{list-style:none;margin:0;padding:0;display:grid;gap:12px}
.check-list li{display:flex;gap:10px;align-items:flex-start;color:var(--muted)}
.check-list li::before{content:'\2713';flex:none;width:22px;height:22px;border-radius:50%;background:rgba(201,138,62,.14);color:var(--amber-hi);display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:800;margin-top:1px}
.x-list li::before{content:'\2717';background:rgba(200,80,80,.12);color:#e08080}

/* ---------- FAQ accordion ---------- */
.faq-item{border-bottom:1px solid var(--line-2)}
.faq-q{width:100%;text-align:left;background:none;border:none;color:var(--text);font-family:var(--font-body);font-weight:700;font-size:16px;padding:22px 0;cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:20px}
.faq-icon{flex:none;width:20px;height:20px;position:relative;transition:transform .3s ease}
.faq-icon::before,.faq-icon::after{content:'';position:absolute;background:var(--amber-hi);border-radius:2px}
.faq-icon::before{width:14px;height:2px;top:9px;left:3px}
.faq-icon::after{width:2px;height:14px;top:3px;left:9px;transition:opacity .25s ease}
.faq-item.open .faq-icon{transform:rotate(180deg)}
.faq-item.open .faq-icon::after{opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .4s cubic-bezier(.2,.8,.2,1)}
.faq-a p{color:var(--muted);font-size:15.5px;max-width:70ch;padding-bottom:22px}

/* ---------- article cards / blog ---------- */
.article-card{display:flex;flex-direction:column;height:100%}
.article-card .meta{font-size:13px;color:var(--muted-2);margin-bottom:8px}
.article-card h3{font-size:18px;margin-bottom:10px}
.article-card p{flex:1;margin-bottom:14px}

/* article/post page layout */
.post-hero{padding:56px 0 34px;border-bottom:1px solid var(--line-2)}
.post-meta{font-size:13.5px;color:var(--muted-2);margin-bottom:10px}
.post-body{padding:52px 0}
.post-body img{border-radius:16px;margin:28px 0}
.post-body h2{margin-top:40px}
.post-body h3{margin-top:28px}
.post-cta{margin-top:44px;padding:32px;border-radius:20px;background:linear-gradient(180deg,var(--panel),var(--panel-2));border:1px solid var(--line-2);text-align:center}

/* ---------- disclaimer box ---------- */
.disclaimer-box{padding:26px 28px;border-radius:18px;background:rgba(255,255,255,.02);border:1px solid var(--line-2);font-size:13.5px;color:var(--muted-2);line-height:1.7}
.disclaimer-box p{margin:0 0 10px;color:var(--muted-2);font-size:13.5px}
.disclaimer-box p:last-child{margin-bottom:0}

/* ---------- redirect notice (for pages mirrored to external destinations) ---------- */
.redirect-card{max-width:640px;margin:0 auto;text-align:center;padding:56px 40px}
.redirect-card .eyebrow{justify-content:center}

/* ---------- scroll reveal ---------- */
.will-reveal{opacity:0;transform:translateY(28px);transition:opacity .8s var(--ease),transform .8s var(--ease)}
.will-reveal.is-revealed{opacity:1;transform:translateY(0)}

/* ---------- footer ---------- */
footer{position:relative;border-top:1px solid var(--line-2);padding:56px 0 40px;background:rgba(0,0,0,.18)}
footer::before{content:'';position:absolute;top:-1px;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,var(--steel),var(--amber-hi),transparent);opacity:.4}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.3fr;gap:36px;margin-bottom:40px}
.footer-logo{height:36px;width:auto;margin-bottom:14px}
footer h4{font-family:var(--font-display);font-weight:600;color:var(--text);margin:0 0 10px;font-size:15px}
footer .foot-links a{display:block;color:var(--muted);font-size:14px;margin:8px 0;transition:color var(--dur-fast),transform var(--dur-fast)}
footer .foot-links a:hover{color:var(--amber-hi);transform:translateX(3px)}
.footer-cta{padding:32px;border-radius:20px;background:linear-gradient(180deg,var(--panel),var(--panel-2));border:1px solid var(--line-2);margin-bottom:32px}
.footer-cta .check-list{grid-template-columns:1fr 1fr;display:grid}
.footer-bottom{border-top:1px solid var(--line-2);padding-top:22px;font-size:13px;color:var(--muted-2);display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px}

@media(max-width:1180px){
  .nav-menu{display:none;position:absolute;top:100%;left:0;right:0;background:#0d0f13;border-bottom:1px solid var(--line-2);padding:12px 24px 20px;max-height:80vh;overflow-y:auto;}
  .nav-menu.active{display:block}
  .nav-menu ul{display:block}
  .nav-menu a{padding:11px 0}
  .nav-menu>ul>li>a::after{left:0;right:auto;width:0;transition:width var(--dur)}
  .nav-menu>ul>li>a:hover::after{width:32px}
  .mega{position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;background:transparent;border:0;padding-left:14px!important;max-width:none}
  .mobile-menu-toggle{display:block}
  .nav-actions{display:none}
  .brochure-link{display:none}
}
@media(max-width:900px){
  .grid-2,.grid-3,.grid-4,.grid-6,.split,.footer-grid{grid-template-columns:1fr}
  .footer-cta .check-list{grid-template-columns:1fr}
  .hero-copy,.card,.statement{padding:26px}
  .btn{width:100%}
  header .nav{flex-wrap:wrap}
}