/* ============================================================================
   david.addario — Landing Page Stylesheet
   ----------------------------------------------------------------------------
   Author:   David Addario (built with Claude)
   Approach: Mobile-first. Base styles target small screens; layout is
             progressively enhanced at two breakpoints:
               @media (min-width: 720px)  — tablet
               @media (min-width: 1024px) — desktop
   Theming:  All colors flow from CSS custom properties in :root.
             --cta / --cta-deep are the dedicated ACTION color, used ONLY
             on buttons and the two carets (hero + form inputs) so the eye
             learns "azure = clickable". Everything else stays in the
             blue/sky family. Do not reuse --cta decoratively.

   TABLE OF CONTENTS
   1.  Design tokens (:root custom properties)
   2.  Reset & base element styles
   3.  Layout primitives (.wrap container, .panel lifted sections)
   4.  Sticky glass header & mobile menu
   5.  Shared type & components (.kicker, .section-head, .btn, .card, .grid)
   6.  Hero (mesh canvas, title/portrait grid, stat band, trusted strip)
   7.  Services (tabbed explorer)
   8.  Case studies (tag pills + metric chips)
   9.  Process steps
   10. Background timeline (reuses .step)
   11. Contact split panel & form
   12. FAQ accordion
   13. Footer
   14. Scroll-reveal animation & reduced-motion overrides
   15. Breakpoints: 720px (tablet), 1024px (desktop)
   ============================================================================ */

/* ============ Tokens ============ */
:root{
  --void:#0A0D13;          /* body — lifted out of pure black */
  --ink:#0E121A;           /* panel sections */
  --ink-2:#131824;         /* card surfaces */
  --blue:#3B5BFF;
  --violet:#4DA6FF;        /* former violet slot — now a clear tech sky-blue */
  --signal:#5CA9FF;
  --cta:#1E9BFF;           /* dedicated action color — buttons & carets only */
  --cta-deep:#0A6FE0;
  --text:#EDF0F4;
  --muted:#97A1B3;
  --faint:#657084;
  --glass:rgba(255,255,255,.05);
  --glass-strong:rgba(255,255,255,.09);
  --stroke:rgba(148,163,184,.15);
  --stroke-bright:rgba(148,163,184,.38);
  --radius:18px;
  --grotesk:'Space Grotesk',sans-serif;
  --mono:'Space Mono',monospace;
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  background:var(--void);
  color:var(--text);
  font-family:var(--grotesk);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
::selection{background:var(--blue);color:#fff}
a{color:inherit;text-decoration:none}
a:focus-visible,button:focus-visible{outline:2px solid var(--signal);outline-offset:3px;border-radius:6px}
.wrap{width:min(1140px, 100% - 40px);margin-inline:auto}

/* Lifted "panel" sections — the SDLC-style layered darkness */
.panel{
  background:linear-gradient(180deg, var(--ink) 0%, #0C0F16 100%);
  border-top:1px solid rgba(148,163,184,.09);
  border-bottom:1px solid rgba(0,0,0,.45);
}

/* ============ Sticky glass header ============ */
.site-header{
  position:sticky;top:0;z-index:50;
  backdrop-filter:blur(18px) saturate(140%);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  background:rgba(10,13,19,.68);
  border-bottom:1px solid var(--stroke);
}
.nav{display:flex;align-items:center;justify-content:space-between;padding:15px 0}
.brand{display:flex;align-items:center;gap:12px}
.brand .tile{
  width:38px;height:38px;border-radius:10px;
  background:linear-gradient(140deg,var(--blue),var(--violet));
  display:flex;align-items:center;justify-content:center;
  font-weight:300;font-size:17px;color:#fff;
  box-shadow:0 6px 18px rgba(59,91,255,.35);flex-shrink:0;
}
.brand .tile b{font-weight:500}
.brand .name{font-weight:300;font-size:17px;letter-spacing:.02em}
.brand .name .dot{color:var(--signal);font-weight:400}
.nav-links{display:none;list-style:none;gap:4px;align-items:center}
.nav-links a{
  font-family:var(--mono);font-size:12px;letter-spacing:.13em;text-transform:uppercase;
  color:var(--muted);padding:9px 14px;border-radius:999px;
  transition:color .2s, background .2s;
}
.nav-links a:hover{color:var(--text);background:var(--glass-strong)}
.nav-links a.cta{
  color:#fff;background:linear-gradient(140deg,var(--cta),var(--cta-deep));
  box-shadow:0 6px 20px rgba(30,155,255,.4);
}
.nav-links a.cta:hover{filter:brightness(1.1)}
.menu-btn{
  display:flex;flex-direction:column;gap:5px;
  background:var(--glass);border:1px solid var(--stroke);border-radius:10px;
  padding:12px 11px;cursor:pointer;
}
.menu-btn span{display:block;width:20px;height:2px;background:var(--text);transition:transform .25s,opacity .25s}
.menu-btn[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.menu-btn[aria-expanded="true"] span:nth-child(2){opacity:0}
.menu-btn[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.mobile-menu{display:none;border-top:1px solid var(--stroke);padding:14px 0 22px}
.mobile-menu.open{display:block}
.mobile-menu a{
  display:block;font-family:var(--mono);font-size:13px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--muted);padding:13px 6px;border-bottom:1px solid rgba(255,255,255,.05);
}
.mobile-menu a:last-child{border-bottom:none;color:var(--signal)}

/* ============ Shared type ============ */
.kicker{
  font-family:var(--mono);font-size:11px;font-weight:700;
  letter-spacing:.28em;text-transform:uppercase;color:var(--signal);
  display:flex;align-items:center;gap:12px;
}
.kicker::before{content:"";width:26px;height:1px;background:var(--signal)}
.section-head{margin-bottom:30px;max-width:640px}
.section-head h2{margin-top:22px;font-weight:300;font-size:clamp(1.9rem,5.6vw,2.9rem);line-height:1.12}
.section-head h2 em{font-style:normal;color:var(--signal)}
.section-head p{margin-top:14px;color:var(--muted)}
section{padding:36px 0}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  font-family:var(--mono);font-size:12px;font-weight:700;
  letter-spacing:.16em;text-transform:uppercase;
  padding:15px 24px;border-radius:999px;cursor:pointer;border:none;
  transition:transform .2s, box-shadow .2s, background .2s;
}
.btn-primary{
  color:#fff;background:linear-gradient(140deg,var(--cta),var(--cta-deep));
  box-shadow:0 10px 30px rgba(30,155,255,.4);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 36px rgba(30,155,255,.55)}
.btn-ghost{
  color:var(--text);background:var(--glass);border:1px solid var(--stroke);
  backdrop-filter:blur(10px);
}
.btn-ghost:hover{background:var(--glass-strong);border-color:var(--stroke-bright)}

.card{
  border-radius:var(--radius);
  border:1px solid var(--stroke);
  background:linear-gradient(160deg, rgba(255,255,255,.065), rgba(255,255,255,.02));
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  box-shadow:0 14px 36px rgba(0,0,0,.28), inset 0 1px 0 rgba(255,255,255,.06);
  padding:30px 26px;
  transition:transform .25s, border-color .25s;
}
.card:hover{transform:translateY(-4px);border-color:var(--stroke-bright)}
.grid{display:grid;gap:20px}

/* ============ Hero ============ */
.hero{position:relative;padding:36px 0 36px}
.hero-mesh{
  position:absolute;top:-90px;left:50%;transform:translateX(-50%);
  width:100vw;height:calc(100% + 180px);
  z-index:0;pointer-events:none;
  mask-image:radial-gradient(130% 100% at 50% 35%, black 70%, transparent 100%);
  -webkit-mask-image:radial-gradient(130% 100% at 50% 35%, black 70%, transparent 100%);
}
.hero > :not(.hero-mesh){position:relative;z-index:1}
.hero h1{
  margin-top:22px;font-weight:300;
  font-size:clamp(2.15rem,8vw,5rem);line-height:1.08;
  display:flex;flex-wrap:wrap;align-items:baseline;
}
.hero h1 .dot{color:var(--signal);font-weight:400}
.caret{
  width:.09em;height:.82em;background:var(--cta);
  margin-left:.12em;align-self:center;
  animation:daBlink 1.1s step-end infinite;
}
@keyframes daBlink{0%,49%{opacity:1}50%,100%{opacity:0}}
.hero .lede{margin-top:26px;max-width:580px;font-size:clamp(1rem,2.6vw,1.15rem);color:var(--muted)}
.hero .lede strong{color:var(--text);font-weight:500}
.hero-actions{display:flex;flex-direction:column;align-items:stretch;gap:12px;margin-top:32px}
.hero-actions .btn{width:100%}

/* Hero head: title + portrait side by side on mobile, rest below */
.hero-head{
  display:grid;
  grid-template-columns:1fr minmax(96px, 132px);
  grid-template-areas:
    "title portrait"
    "rest  rest";
  gap:16px;
  align-items:center;
}
.hero-title{grid-area:title;min-width:0}
.hero-rest{grid-area:rest}
.hero-portrait{
  grid-area:portrait;
  position:relative;
  width:100%;
  align-self:center;
}
.hero-portrait::before{
  content:"";position:absolute;inset:10% -6% 0 -6%;
  background:radial-gradient(60% 55% at 50% 50%, rgba(59,91,255,.18), transparent 70%);
  filter:blur(26px);
  z-index:0;
}
.hero-portrait img{
  position:relative;z-index:1;
  width:100%;height:auto;display:block;
  filter:drop-shadow(0 26px 50px rgba(0,0,0,.55));
}
.status-chip{
  display:none;
  position:absolute;z-index:2;
  left:50%;transform:translateX(-50%);bottom:6%;
  white-space:nowrap;
  align-items:center;gap:9px;
  font-family:var(--mono);font-size:10.5px;font-weight:700;
  letter-spacing:.14em;text-transform:uppercase;color:var(--text);
  background:rgba(11,14,20,.66);
  border:1px solid var(--stroke);border-radius:999px;
  padding:10px 16px;
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  box-shadow:0 10px 30px rgba(0,0,0,.45), inset 0 1px 0 rgba(255,255,255,.07);
}
.status-chip i{
  width:7px;height:7px;border-radius:50%;background:#7BE0AD;
  box-shadow:0 0 10px #7BE0AD;
  animation:daBlink 2.2s step-end infinite;
}

/* Hero stat band — SDLC-style proof numbers */
.stat-band{
  margin-top:40px;
  border-radius:var(--radius);
  border:1px solid var(--stroke);
  background:linear-gradient(160deg, rgba(255,255,255,.06), rgba(255,255,255,.015));
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  box-shadow:0 24px 60px rgba(0,0,0,.45), inset 0 1px 0 rgba(255,255,255,.07);
  display:grid;grid-template-columns:1fr;
}
.stat-band .stat{
  padding:26px 28px;
  border-bottom:1px solid rgba(148,163,184,.12);
}
.stat-band .stat:last-child{border-bottom:none}
.stat-band b{
  display:block;font-weight:300;font-size:2.5rem;line-height:1.1;
  background:linear-gradient(140deg,var(--signal),var(--violet));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.stat-band span{
  display:block;margin-top:6px;
  font-family:var(--mono);font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:var(--muted);
}

/* Trusted-by strip */
.trusted{margin-top:30px}
.trusted .label{
  font-family:var(--mono);font-size:10px;font-weight:700;
  letter-spacing:.26em;text-transform:uppercase;color:var(--faint);
}
.trusted .logos{
  margin-top:16px;display:flex;flex-wrap:wrap;gap:14px 34px;align-items:baseline;
}
.trusted .logos span{
  font-family:var(--mono);font-size:13px;letter-spacing:.06em;color:var(--faint);
  opacity:.85;
}
.trusted .logos span i{font-style:normal;color:var(--signal)}

/* ============ Services — tabbed explorer (SDLC twist) ============ */
.tabs{
  display:grid;grid-template-columns:repeat(2,1fr);gap:10px;
  margin-bottom:24px;
}
.tab{text-align:center}
.tab{
  font-family:var(--mono);font-size:11px;font-weight:700;
  letter-spacing:.14em;text-transform:uppercase;
  color:var(--muted);background:var(--glass);
  border:1px solid var(--stroke);border-radius:999px;
  padding:11px 18px;cursor:pointer;transition:all .2s;
}
.tab:hover{color:var(--text);border-color:var(--stroke-bright)}
.tab.active{
  color:#fff;background:linear-gradient(140deg,var(--blue),var(--violet));
  border-color:transparent;box-shadow:0 6px 20px rgba(59,91,255,.35);
}
.tab-panel{display:none}
.tab-panel.active{display:block;animation:fadeUp .35s ease}
@keyframes fadeUp{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}
.svc-panel{padding:34px 28px}
.svc-panel h3{font-weight:500;font-size:1.5rem}
.svc-panel .desc{margin-top:12px;color:var(--muted);max-width:560px}
.checklist{
  margin-top:26px;display:grid;grid-template-columns:1fr;gap:12px 28px;
  list-style:none;
}
.checklist li{
  display:flex;gap:12px;align-items:baseline;
  font-size:.95rem;color:var(--text);
}
.checklist li::before{
  content:"→";font-family:var(--mono);color:var(--signal);flex-shrink:0;
}
.svc-panel .btn{margin-top:30px}

/* ============ Case studies — Geniusee twist ============ */
.case{
  display:flex;flex-direction:column;gap:18px;
  padding:34px 28px;
}
.case .top{display:flex;justify-content:space-between;align-items:baseline;gap:14px;flex-wrap:wrap}
.case .client{
  font-family:var(--mono);font-size:11px;font-weight:700;
  letter-spacing:.2em;text-transform:uppercase;color:var(--signal);
}
.case .year{font-family:var(--mono);font-size:11px;letter-spacing:.18em;color:var(--faint)}
.case h3{font-weight:500;font-size:1.4rem;line-height:1.25}
.case p{color:var(--muted);font-size:.96rem;max-width:620px}
.pills{display:flex;flex-wrap:wrap;gap:8px}
.pill{
  font-family:var(--mono);font-size:10px;font-weight:700;
  letter-spacing:.14em;text-transform:uppercase;
  color:var(--muted);background:rgba(148,163,184,.07);
  border:1px solid var(--stroke);border-radius:999px;
  padding:6px 13px;
}
.metrics{
  display:grid;grid-template-columns:1fr;gap:12px;
  margin-top:6px;padding-top:20px;border-top:1px solid rgba(255,255,255,.07);
}
.metric{
  display:flex;align-items:center;gap:14px;
  background:rgba(92,169,255,.06);
  border:1px solid var(--stroke);border-radius:12px;
  padding:14px 18px;
}
.metric b{
  font-weight:300;font-size:1.7rem;white-space:nowrap;
  background:linear-gradient(140deg,var(--signal),var(--violet));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.metric span{font-family:var(--mono);font-size:10.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}

/* ============ Process ============ */
.step .num{font-family:var(--mono);font-size:12px;font-weight:700;letter-spacing:.18em;color:var(--blue)}
.step h3{margin-top:12px;font-weight:500;font-size:1.1rem}
.step p{margin-top:8px;font-size:.93rem;color:var(--muted)}

/* ============ Testimonials ============ */
.quote{display:flex;flex-direction:column;gap:20px}
.quote .mark{
  font-family:var(--mono);font-size:2rem;line-height:1;color:var(--signal);
}
.quote blockquote{font-size:1rem;line-height:1.7;color:var(--text);font-weight:300}
.quote .who{margin-top:auto;padding-top:16px;border-top:1px solid rgba(255,255,255,.07)}
.quote .who b{display:block;font-weight:500;font-size:.95rem}
.quote .who span{font-family:var(--mono);font-size:10.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}

/* ============ Contact — split panel ============ */
.contact-split{
  border-radius:calc(var(--radius) + 6px);
  border:1px solid var(--stroke);
  background:
    radial-gradient(700px 400px at 85% 0%, rgba(59,91,255,.12), transparent 60%),
    linear-gradient(160deg, rgba(255,255,255,.065), rgba(255,255,255,.02));
  backdrop-filter:blur(20px);
  -webkit-backdrop-filter:blur(20px);
  box-shadow:0 30px 80px rgba(0,0,0,.5), inset 0 1px 0 rgba(255,255,255,.07);
  overflow:hidden;
  display:grid;grid-template-columns:1fr;
}
.contact-info{padding:44px 28px;border-bottom:1px solid var(--stroke)}
.contact-info h2{margin-top:22px;font-weight:300;font-size:clamp(1.9rem,6vw,2.6rem);line-height:1.12}
.contact-info h2 .dot{color:var(--cta)}
.contact-info .sub{margin-top:14px;color:var(--muted)}
.next-steps{margin-top:30px;list-style:none;display:grid;gap:12px}
.next-steps li{display:flex;gap:12px;align-items:baseline;font-size:.95rem}
.next-steps li::before{content:"✓";font-family:var(--mono);color:#7BE0AD;flex-shrink:0}
.contact-lines{margin-top:34px;display:grid;gap:10px}
.contact-lines a{
  display:flex;align-items:center;gap:14px;
  font-size:.95rem;padding:12px 14px;border-radius:12px;
  border:1px solid transparent;transition:all .2s;
}
.contact-lines a:hover{background:var(--glass);border-color:var(--stroke)}
.contact-lines .k{
  font-family:var(--mono);font-size:10px;font-weight:700;
  letter-spacing:.2em;text-transform:uppercase;color:var(--signal);
  width:64px;flex-shrink:0;
}
.contact-form{padding:44px 28px}
.contact-form h3{font-weight:500;font-size:1.2rem}
.field{margin-top:18px}
.field label{
  display:block;font-family:var(--mono);font-size:10px;font-weight:700;
  letter-spacing:.2em;text-transform:uppercase;color:var(--muted);margin-bottom:8px;
}
.field input,.field textarea,.field select{
  width:100%;
  background:rgba(10,13,19,.6);
  border:1px solid var(--stroke);border-radius:12px;
  color:var(--text);font-family:var(--grotesk);font-size:.95rem;
  padding:14px 16px;transition:border-color .2s;
  caret-color:var(--cta);
}
.field input:focus,.field textarea:focus,.field select:focus{
  outline:none;border-color:var(--stroke-bright);
}
.field textarea{min-height:110px;resize:vertical}
.field select{appearance:none;-webkit-appearance:none;cursor:pointer}
.contact-form .btn{margin-top:24px;width:100%;justify-content:center}
.form-ok{
  display:none;margin-top:18px;
  font-family:var(--mono);font-size:12px;letter-spacing:.1em;color:#7BE0AD;
}
.form-ok.show{display:block}

/* ============ FAQ — Geniusee twist ============ */
.faq{max-width:760px}
.faq details{
  border:1px solid var(--stroke);border-radius:14px;
  background:linear-gradient(160deg, rgba(255,255,255,.045), rgba(255,255,255,.01));
  backdrop-filter:blur(12px);
  margin-bottom:12px;overflow:hidden;
}
.faq summary{
  cursor:pointer;list-style:none;
  padding:20px 22px;font-weight:500;font-size:1rem;
  display:flex;justify-content:space-between;align-items:center;gap:16px;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{
  content:"+";font-family:var(--mono);font-size:1.2rem;color:var(--signal);
  transition:transform .25s;flex-shrink:0;
}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq .answer{padding:0 22px 22px;color:var(--muted);font-size:.95rem}

/* ============ Footer ============ */
footer{border-top:1px solid var(--stroke);padding:36px 0 46px;background:var(--void)}
.foot{
  display:flex;flex-direction:column;gap:16px;
  font-family:var(--mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--faint);
}
.foot .mark{display:flex;align-items:baseline;font-family:var(--grotesk);font-weight:300;font-size:16px;letter-spacing:.02em;color:var(--text);text-transform:none}
.foot .mark .dot{color:var(--signal);font-weight:400}

/* Reveal */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .6s ease, transform .6s ease}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion: reduce){
  .reveal{opacity:1;transform:none;transition:none}
  .caret{animation:none}
  html{scroll-behavior:auto}
}

/* ============ Breakpoints — mobile first ============ */
@media (min-width:720px){
  .hero-actions{flex-direction:row;align-items:center;gap:14px}
  .hero-actions .btn{width:auto}
  .tabs{display:flex;flex-wrap:wrap}
  .hero-head{grid-template-columns:1fr 230px;gap:28px}
  .status-chip{display:flex}
  .stat-band{grid-template-columns:repeat(3,1fr)}
  .stat-band .stat{border-bottom:none;border-right:1px solid rgba(148,163,184,.12)}
  .stat-band .stat:last-child{border-right:none}
  .checklist{grid-template-columns:repeat(2,1fr)}
  .metrics{grid-template-columns:repeat(3,1fr)}
  .grid.cols-3{grid-template-columns:repeat(2,1fr)}
  .grid.cols-4{grid-template-columns:repeat(2,1fr)}
  .contact-split{grid-template-columns:1.05fr 1fr}
  .contact-info{border-bottom:none;border-right:1px solid var(--stroke);padding:52px 44px}
  .contact-form{padding:52px 44px}
  .foot{flex-direction:row;justify-content:space-between;align-items:center}
}
@media (min-width:1024px){
  .nav-links{display:flex}
  .menu-btn{display:none}
  .grid.cols-3{grid-template-columns:repeat(3,1fr)}
  .grid.cols-4{grid-template-columns:repeat(4,1fr)}
  .hero{padding:64px 0 60px}
  .hero-head{
    grid-template-columns:1.12fr .88fr;
    grid-template-areas:
      "title portrait"
      "rest  portrait";
    gap:12px 40px;
    align-items:end;
  }
  .hero-portrait{width:min(420px,100%);justify-self:end;align-self:end}
  section{padding:60px 0}
  .svc-panel{padding:44px 42px}
  .case{padding:42px 40px}
}