/* SeminarPro — design system (LIGHT)
   Direction: editorial-technical. Warm paper base, ink type, one signal accent,
   monospace technical labels, a single inverted band for weight.
   Brand colour lives in --accent alone; change that one line to rebrand. */

:root{
  /* ---- brand ---- */
  --accent:#B14E09;              /* signal amber, darkened to clear WCAG AA on paper */
  --accent-lift:#FF9B3D;         /* same hue lifted, for use on the dark bands */
  --accent-ink:#FFFFFF;          /* text on accent */
  --accent-wash:rgba(177,78,9,.09);

  /* ---- surfaces ---- */
  --bg:#FBFAF8;                  /* page */
  --bg-2:#F2F0EA;                /* alternate section */
  --bg-3:#EBE8E0;                /* hover / inset */
  --dark:#12161A;                /* inverted band + footer */
  --dark-2:#1B2126;

  /* ---- type ---- */
  --ink:#14181C;
  --muted:#5C6670;
  --ink-inv:#F4F6F7;
  --muted-inv:#98A3AD;

  /* ---- lines ---- */
  --line:rgba(20,24,28,.13);
  --line-soft:rgba(20,24,28,.08);
  --line-inv:rgba(255,255,255,.12);

  --radius:4px;
  --maxw:1180px;
  --pad:clamp(20px,5vw,48px);
  --font-display:"Bricolage Grotesque","IBM Plex Sans",sans-serif;
  --font-body:"IBM Plex Sans",-apple-system,sans-serif;
  --font-mono:"IBM Plex Mono",ui-monospace,monospace;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:var(--font-body);font-size:17px;line-height:1.62;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit}

/* ---------- layout ---------- */
.wrap{max-width:var(--maxw);margin:0 auto;padding-left:var(--pad);padding-right:var(--pad);position:relative;z-index:2}
section{position:relative;z-index:2}
.sec{padding:clamp(64px,9vw,120px) 0}
.sec--tight{padding:clamp(48px,6vw,80px) 0}
/* .paper is the tinted alternate section; .bg2 stays on the base surface so
   two adjacent alternates never merge into one undifferentiated block. */
.paper{background:var(--bg-2)}
.bg2{background:var(--bg)}
/* Inverted areas: rescope the accent so it stays legible on dark.
   Every child (eyebrows, step numbers, links, buttons) inherits automatically. */
.inv,.band,.ftr{--accent:var(--accent-lift);--accent-ink:#12161A}
.inv{background:var(--dark);color:var(--ink-inv)}
.inv .muted,.inv .lead,.inv .step p{color:var(--muted-inv)}

/* ---------- type ---------- */
h1,h2,h3,h4{font-family:var(--font-display);font-weight:700;line-height:1.05;letter-spacing:-.025em;margin:0 0 .5em}
h1{font-size:clamp(40px,6.4vw,74px);letter-spacing:-.038em}
h2{font-size:clamp(29px,4vw,46px)}
h3{font-size:clamp(20px,2.2vw,26px);line-height:1.2}
h4{font-size:18px;letter-spacing:-.01em}
p{margin:0 0 1.1em}
.lead{font-size:clamp(18px,2vw,21px);color:var(--muted);max-width:62ch}
.eyebrow{
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--accent);display:flex;align-items:center;gap:10px;margin:0 0 20px;font-weight:500;
}
.eyebrow::before{content:"";width:26px;height:1px;background:var(--accent);flex:none}
.inv .eyebrow{color:var(--accent)}
.muted{color:var(--muted)}

/* ---------- logo (wordmark) ---------- */
.logo{display:inline-flex;align-items:center;gap:11px;text-decoration:none;flex:none}
.logo__rule{width:3px;height:23px;border-radius:2px;background:var(--accent);flex:none}
.logo__word{
  font-family:var(--font-display);font-weight:800;font-size:20px;
  letter-spacing:-.045em;text-transform:uppercase;line-height:1;white-space:nowrap;
}
.logo__word span{font-weight:600;opacity:.55}
.ftr .logo__word{color:var(--ink-inv)}

/* ---------- header ---------- */
.hdr{position:sticky;top:0;z-index:60;background:rgba(251,250,248,.86);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.hdr__in{display:flex;align-items:center;gap:28px;height:72px}
.nav{display:flex;gap:26px;margin-left:auto;align-items:center}
.nav a{text-decoration:none;font-size:14.5px;color:var(--muted);transition:color .2s}
.nav a:hover,.nav a[aria-current="page"]{color:var(--ink)}
.hdr__cta{display:flex;align-items:center;gap:14px;flex:none}
.lang{font-family:var(--font-mono);font-size:12px;letter-spacing:.1em;text-decoration:none;color:var(--muted);border:1px solid var(--line);padding:6px 9px;border-radius:var(--radius);transition:.2s}
.lang:hover{color:var(--accent);border-color:var(--accent)}
.burger{display:none;background:none;border:1px solid var(--line);color:var(--ink);width:42px;height:38px;border-radius:var(--radius);cursor:pointer;align-items:center;justify-content:center}
.burger span{display:block;width:17px;height:1.5px;background:currentColor;position:relative}
.burger span::before,.burger span::after{content:"";position:absolute;left:0;width:17px;height:1.5px;background:currentColor}
.burger span::before{top:-5px}.burger span::after{top:5px}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:9px;padding:13px 22px;border-radius:var(--radius);
  font-family:var(--font-mono);font-size:12.5px;letter-spacing:.09em;text-transform:uppercase;font-weight:500;
  text-decoration:none;border:1px solid transparent;cursor:pointer;
  transition:transform .18s,background .2s,border-color .2s,color .2s;
}
.btn:hover{transform:translateY(-2px)}
.btn--primary{background:var(--accent);color:var(--accent-ink);font-weight:600;border-color:var(--accent)}
.btn--primary:hover{filter:brightness(1.09)}
.btn--ghost{border-color:var(--line);color:var(--ink)}
.btn--ghost:hover{border-color:var(--accent);color:var(--accent)}
.inv .btn--ghost{border-color:var(--line-inv);color:var(--ink-inv)}
.btn--lg{padding:16px 28px;font-size:13px}
.btns{display:flex;flex-wrap:wrap;gap:12px}

/* ---------- hero ---------- */
.hero{position:relative;padding:clamp(64px,9vw,116px) 0 clamp(28px,3.5vw,48px);overflow:hidden;background:var(--bg)}
.hero::after{
  content:"";position:absolute;top:-32%;right:-12%;width:66vw;height:66vw;max-width:880px;max-height:880px;
  background:radial-gradient(circle,var(--accent-wash),transparent 62%);pointer-events:none;z-index:0;
  /* fade out before the hero's bottom edge, or overflow:hidden cuts a hard rectangle
     on short inner-page heroes */
  mask-image:linear-gradient(to bottom,#000 35%,transparent 92%);
  -webkit-mask-image:linear-gradient(to bottom,#000 35%,transparent 92%);
}
.hero__grid{
  position:absolute;inset:0;z-index:0;opacity:.6;
  background-image:linear-gradient(var(--line-soft) 1px,transparent 1px),linear-gradient(90deg,var(--line-soft) 1px,transparent 1px);
  background-size:78px 78px;
  mask-image:radial-gradient(ellipse 90% 78% at 50% 0%,#000 10%,transparent 78%);
  -webkit-mask-image:radial-gradient(ellipse 90% 78% at 50% 0%,#000 10%,transparent 78%);
}
.hero .wrap{position:relative;z-index:2}
.hero h1{max-width:16ch}
.hero h1 em{font-style:normal;color:var(--accent)}
.hero .lead{margin-bottom:32px;max-width:56ch}
.reveal{opacity:0;transform:translateY(18px);animation:rise .8s cubic-bezier(.2,.7,.2,1) forwards}
@keyframes rise{to{opacity:1;transform:none}}
.d1{animation-delay:.05s}.d2{animation-delay:.15s}.d3{animation-delay:.25s}.d4{animation-delay:.35s}.d5{animation-delay:.45s}
@media (prefers-reduced-motion:reduce){.reveal{animation:none;opacity:1;transform:none}}

/* spec strip */
.specs{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);margin-top:clamp(44px,6vw,72px)}
.specs div{background:var(--bg);padding:22px 20px}
.specs .k{font-family:var(--font-mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);margin:0 0 8px}
.specs .v{font-family:var(--font-display);font-size:clamp(22px,2.6vw,30px);font-weight:700;letter-spacing:-.025em;margin:0;line-height:1.1}

/* ---------- service cards ---------- */
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(270px,1fr));gap:1px;background:var(--line);border:1px solid var(--line)}
.card{background:var(--bg);padding:clamp(26px,3vw,36px);text-decoration:none;display:flex;flex-direction:column;transition:background .25s;position:relative}
.card:hover{background:var(--bg-3)}
.bg2 .card,.paper .card{background:var(--bg-2)}
.bg2 .card:hover,.paper .card:hover{background:var(--bg-3)}
.card__no{font-family:var(--font-mono);font-size:11px;letter-spacing:.14em;color:var(--accent);margin-bottom:20px}
.card h3{margin-bottom:12px}
.card p{color:var(--muted);font-size:15.5px;margin-bottom:20px}
.card ul{margin:0 0 22px;padding:0;list-style:none;font-size:14.5px;color:var(--muted)}
.card ul li{padding-left:16px;position:relative;margin-bottom:5px}
.card ul li::before{content:"";position:absolute;left:0;top:.62em;width:5px;height:1px;background:var(--accent)}
.card__go{margin-top:auto;font-family:var(--font-mono);font-size:12px;letter-spacing:.09em;text-transform:uppercase;color:var(--ink);display:flex;align-items:center;gap:8px}
.card:hover .card__go{color:var(--accent)}
.card__go span{transition:transform .2s}
.card:hover .card__go span{transform:translateX(5px)}

/* ---------- split ---------- */
.split{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:clamp(32px,6vw,80px);align-items:start}
.split--rev{grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr)}

/* ---------- steps ---------- */
.steps{counter-reset:s;display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:28px;margin-top:48px}
.step{border-top:1px solid var(--line);padding-top:20px}
.step::before{counter-increment:s;content:"0" counter(s);font-family:var(--font-mono);font-size:11px;letter-spacing:.14em;color:var(--accent);display:block;margin-bottom:12px}
.step h4{margin-bottom:8px}
.step p{font-size:15px;margin:0;color:var(--muted)}
.inv .step{border-color:var(--line-inv)}

/* ---------- checklist ---------- */
.checks{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:14px 32px}
.checks li{padding-left:28px;position:relative;font-size:15.5px}
.checks li::before{
  content:"";position:absolute;left:0;top:.42em;width:14px;height:8px;
  border-left:1.6px solid var(--accent);border-bottom:1.6px solid var(--accent);transform:rotate(-45deg);
}

/* ---------- table ---------- */
.tbl{width:100%;border-collapse:collapse;font-size:15px;margin-top:8px;background:var(--bg)}
.tbl th,.tbl td{text-align:left;padding:15px 16px;border-bottom:1px solid var(--line)}
.tbl thead th{font-family:var(--font-mono);font-size:11px;letter-spacing:.13em;text-transform:uppercase;color:var(--muted);font-weight:500;border-bottom-color:var(--ink)}
.tbl tbody tr:nth-child(even){background:var(--bg-2)}
.paper .tbl tbody tr:nth-child(even),.bg2 .tbl tbody tr:nth-child(even){background:var(--bg-3)}
.tbl td:first-child{font-weight:600}

/* ---------- pick (choose A or B) ---------- */
.picks{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:1px;background:var(--line);border:1px solid var(--line);margin-top:44px}
.pick{background:var(--bg);padding:clamp(26px,3vw,38px);position:relative}
.pick::before{content:"";position:absolute;top:0;left:0;right:0;height:2px;background:var(--ink)}
.pick--ai::before{background:var(--accent)}
.pick h3{margin-bottom:10px}
.pick>p{font-size:15.5px;margin-bottom:22px}
.pick ul{list-style:none;margin:0;padding:0}
.pick li{padding-left:22px;position:relative;margin-bottom:11px;font-size:15.5px}
.pick li::before{content:"";position:absolute;left:0;top:.62em;width:9px;height:1px;background:var(--ink)}
.pick--ai li::before{background:var(--accent)}

/* ---------- quotes / client strip ---------- */
.quotes{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:24px;margin-top:44px}
.quote{border:1px solid var(--line);padding:28px;border-radius:var(--radius);background:var(--bg)}
.quote p{font-size:16.5px;font-style:italic;margin-bottom:18px}
.quote cite{font-style:normal;font-family:var(--font-mono);font-size:11.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}
.logos{display:grid;grid-template-columns:repeat(auto-fit,minmax(130px,1fr));gap:1px;background:var(--line);border:1px solid var(--line);margin-top:36px}
.logos div{background:var(--bg);aspect-ratio:16/7;display:flex;align-items:center;justify-content:center;font-family:var(--font-mono);font-size:10.5px;letter-spacing:.12em;color:var(--muted);text-align:center;padding:8px}

/* ---------- faq ---------- */
.faq{margin-top:40px;border-top:1px solid var(--ink)}
.faq details{border-bottom:1px solid var(--line);padding:4px 0}
.faq summary{cursor:pointer;list-style:none;padding:20px 40px 20px 0;font-family:var(--font-display);font-weight:600;font-size:18px;letter-spacing:-.015em;position:relative}
.faq summary::-webkit-details-marker{display:none}
.faq summary:hover{color:var(--accent)}
.faq summary::after{content:"+";position:absolute;right:6px;top:18px;font-family:var(--font-mono);font-size:20px;color:var(--accent);transition:transform .25s}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq p{padding:0 40px 20px 0;color:var(--muted);font-size:16px;margin:0;max-width:80ch}
.faq a{color:var(--accent)}

/* ---------- CTA band ---------- */
.band{background:var(--dark);color:var(--ink-inv);padding:clamp(48px,6vw,76px) 0}
.band h2{margin-bottom:14px;max-width:20ch}
.band p{max-width:52ch;color:var(--muted-inv);margin-bottom:26px}
.band .btn--dark{background:var(--accent);color:var(--accent-ink);border-color:var(--accent)}
.band .btn--dark:hover{filter:brightness(1.1)}
.band .btn--outline{border-color:var(--line-inv);color:var(--ink-inv)}
.band .btn--outline:hover{border-color:var(--ink-inv)}

/* ---------- form ---------- */
.form{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{display:flex;flex-direction:column;gap:7px}
.field--full{grid-column:1/-1}
label{font-family:var(--font-mono);font-size:11px;letter-spacing:.13em;text-transform:uppercase;color:var(--muted)}
input,select,textarea{
  font-family:var(--font-body);font-size:16px;color:var(--ink);background:var(--bg);
  border:1px solid var(--line);border-radius:var(--radius);padding:13px 14px;width:100%;
}
.paper input,.paper select,.paper textarea,.bg2 input,.bg2 select,.bg2 textarea{background:var(--bg)}
input:focus,select:focus,textarea:focus{outline:2px solid var(--accent);outline-offset:-1px;border-color:transparent}
textarea{min-height:120px;resize:vertical}
.form .hint{grid-column:1/-1;font-size:13.5px;color:var(--muted);margin:0}
.form .hint a{color:var(--accent)}

/* ---------- contact block ---------- */
.contact-list{list-style:none;margin:26px 0 0;padding:0}
.contact-list li{display:flex;gap:14px;padding:16px 0;border-bottom:1px solid var(--line)}
.contact-list .k{font-family:var(--font-mono);font-size:11px;letter-spacing:.13em;text-transform:uppercase;color:var(--muted);min-width:110px;padding-top:3px}
.contact-list a{text-decoration:none;font-size:18px;font-weight:600}
.contact-list a:hover{color:var(--accent)}

/* ---------- footer (inverted) ---------- */
.ftr{background:var(--dark);color:var(--muted-inv);padding:clamp(56px,7vw,84px) 0 34px;font-size:14.5px}
.ftr__grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px}
.ftr h4{font-family:var(--font-mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted-inv);font-weight:500;margin-bottom:16px}
.ftr ul{list-style:none;margin:0;padding:0}
.ftr li{margin-bottom:9px}
.ftr a{text-decoration:none;transition:color .2s}
.ftr a:hover{color:var(--accent)}
.ftr__btm{margin-top:44px;padding-top:22px;border-top:1px solid var(--line-inv);display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;font-size:13px;font-family:var(--font-mono);letter-spacing:.04em}

/* ---------- breadcrumbs ---------- */
.crumbs{font-family:var(--font-mono);font-size:11.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);padding-top:28px}
.crumbs a{text-decoration:none}
.crumbs a:hover{color:var(--accent)}

/* ---------- responsive ---------- */
@media (max-width:1180px){
  .nav{gap:17px}
  .nav a{font-size:13.5px}
}
@media (max-width:900px){
  .specs{grid-template-columns:repeat(2,1fr)}
  .split,.split--rev{grid-template-columns:1fr}
  .ftr__grid{grid-template-columns:1fr 1fr}
}
@media (max-width:760px){
  .burger{display:flex}
  .nav{
    display:none;position:absolute;top:72px;left:0;right:0;background:var(--bg);
    flex-direction:column;align-items:flex-start;gap:0;padding:8px var(--pad) 20px;border-bottom:1px solid var(--line);
    box-shadow:0 18px 40px -20px rgba(20,24,28,.28);
  }
  .nav.open{display:flex}
  .nav a{padding:13px 0;width:100%;border-bottom:1px solid var(--line-soft);font-size:16px}
  .hdr__cta .btn{display:none}
  .form{grid-template-columns:1fr}
  .tbl,.tbl tbody,.tbl tr,.tbl td{display:block;width:100%}
  .tbl thead{display:none}
  .tbl tr{border:1px solid var(--line);margin-bottom:12px;background:var(--bg)}
  .tbl td{border:0;border-bottom:1px solid var(--line-soft);padding:12px 14px}
  .tbl td:last-child{border-bottom:0}
  .tbl td:first-child{font-weight:700;background:var(--bg-2)}
}
@media (max-width:520px){
  body{font-size:16px}
  .specs{grid-template-columns:1fr}
  .ftr__grid{grid-template-columns:1fr}
}