/* ===========================================================
   AIFlowSites — design tokens
   =========================================================== */
:root{
  --paper:#F2F5F4;
  --paper-raised:#FFFFFF;
  --ink:#0E2229;
  --ink-soft:#3D5257;
  --line:#D7E1E0;
  --primary:#12586B;
  --primary-deep:#0A3540;
  --primary-tint:#E3EDEC;
  --accent:#FF6B39;
  --accent-deep:#D9481A;
  --accent-tint:#FFE7DB;
  --muted:#5C7278;
  --on-accent:#2A0F03;
  --brand-deep:#0A3540;
  --brand-deep-line:#2E7F91;
  --brand-deep-line-hi:#5FBCCF;
  --brand-on-deep:#F4FAF9;
  --brand-on-deep-muted:#9FD3DE;
  --shadow: 0 1px 2px rgba(14,34,41,.06), 0 12px 32px -16px rgba(14,34,41,.22);
  --radius-lg:20px;
  --radius-md:14px;
  --radius-sm:10px;
  color-scheme: light;
}

:root[data-theme="dark"]{
  --paper:#0A1A1F;
  --paper-raised:#0F2229;
  --ink:#ECF3F2;
  --ink-soft:#B9CBCA;
  --line:#1D373D;
  --primary:#5FBCCF;
  --primary-deep:#8CD4E1;
  --primary-tint:#12333B;
  --accent:#FF8A5C;
  --accent-deep:#FFB08A;
  --accent-tint:#3A2115;
  --muted:#8EA6A7;
  --on-accent:#2A0F03;
  --shadow: 0 1px 2px rgba(0,0,0,.35), 0 12px 32px -16px rgba(0,0,0,.55);
  color-scheme: dark;
}

@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]):not([data-theme="dark"]){
    --paper:#0A1A1F;
    --paper-raised:#0F2229;
    --ink:#ECF3F2;
    --ink-soft:#B9CBCA;
    --line:#1D373D;
    --primary:#5FBCCF;
    --primary-deep:#8CD4E1;
    --primary-tint:#12333B;
    --accent:#FF8A5C;
    --accent-deep:#FFB08A;
    --accent-tint:#3A2115;
    --muted:#8EA6A7;
    --on-accent:#2A0F03;
    --shadow: 0 1px 2px rgba(0,0,0,.35), 0 12px 32px -16px rgba(0,0,0,.55);
    color-scheme: dark;
  }
}

/* ===========================================================
   Reset & base
   =========================================================== */
*, *::before, *::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
@media (prefers-reduced-motion: reduce){ html{ scroll-behavior:auto; } }

[hidden]{ display:none !important; }

body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:'Manrope',-apple-system,'Segoe UI',sans-serif;
  -webkit-font-smoothing:antialiased;
  transition:background .25s ease, color .25s ease;
}

h1,h2,h3,h4,.display{
  font-family:'Sora',-apple-system,'Segoe UI',sans-serif;
  text-wrap:balance;
  margin:0;
  color:var(--ink);
}

p{ margin:0; }
a{ color:inherit; text-decoration:none; }
img,svg{ display:block; max-width:100%; }
button{ font:inherit; }
code,.mono{ font-family:'JetBrains Mono','SFMono-Regular',monospace; }

.wrap{ max-width:1160px; margin:0 auto; padding:0 32px; }
@media (max-width:640px){ .wrap{ padding:0 20px; } }

.eyebrow{
  font-family:'JetBrains Mono',monospace;
  font-size:12px;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--accent);
  margin:0 0 14px;
}

a:focus-visible, button:focus-visible{
  outline:2px solid var(--accent);
  outline-offset:3px;
  border-radius:4px;
}

/* ===========================================================
   Lockup / mark
   =========================================================== */
.lockup{ display:inline-flex; align-items:center; gap:10px; }
.lockup .mark{ flex:none; }
.lockup .wordmark{
  font-family:'Sora'; font-weight:700; font-size:19px; letter-spacing:-.01em; color:var(--ink);
}
.lockup .wordmark span{ font-weight:400; opacity:.68; }

/* ===========================================================
   Nav
   =========================================================== */
.nav{
  position:sticky; top:0; z-index:50;
  background:color-mix(in srgb, var(--paper) 86%, transparent);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.nav-inner{
  display:flex; align-items:center; justify-content:space-between;
  padding:16px 32px;
}
.nav-right-group{ display:flex; align-items:center; gap:36px; }
.nav-links{
  display:flex; align-items:center; gap:28px;
  list-style:none; margin:0; padding:0;
}
.nav-links a{
  font-size:14.5px; font-weight:600; color:var(--ink-soft);
  transition:color .15s ease;
}
.nav-links a:hover{ color:var(--ink); }
.nav-links-cta{ margin-left:4px; }
.nav-right{ display:flex; align-items:center; gap:14px; }

.theme-toggle{
  display:flex; align-items:center; justify-content:center;
  width:36px; height:36px; border-radius:100px;
  border:1px solid var(--line); background:var(--paper-raised);
  color:var(--ink-soft); cursor:pointer;
}
.theme-toggle svg{ width:16px; height:16px; }
.theme-toggle .icon-moon{ display:none; }
:root[data-theme="dark"] .theme-toggle .icon-sun{ display:none; }
:root[data-theme="dark"] .theme-toggle .icon-moon{ display:block; }
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]) .theme-toggle .icon-sun{ display:none; }
  :root:not([data-theme="light"]) .theme-toggle .icon-moon{ display:block; }
}

.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  font-family:'Sora'; font-weight:600; font-size:14px;
  padding:11px 22px; border-radius:100px; border:1px solid transparent;
  cursor:pointer; white-space:nowrap;
  transition:transform .15s ease, box-shadow .15s ease, background .15s ease;
}
.btn:hover{ transform:translateY(-1px); }
.btn-primary{ background:var(--accent); color:var(--on-accent); box-shadow:var(--shadow); }
.btn-primary:hover{ background:var(--accent-deep); }
.btn-ghost{ background:transparent; border-color:var(--line); color:var(--ink); }
.btn-ghost:hover{ border-color:var(--primary); }
.btn-inverse{ background:#F4FAF9; color:var(--brand-deep); }
.btn-inverse:hover{ background:#fff; }

.btn-nav-cta{
  background:transparent; border-color:var(--accent); color:var(--accent);
  padding:9px 18px; font-size:13.5px; box-shadow:none;
}
.btn-nav-cta:hover{ background:var(--accent); color:var(--on-accent); }

.nav-menu-btn{
  display:none; width:38px; height:38px; align-items:center; justify-content:center;
  border-radius:100px; border:1px solid var(--line); background:var(--paper-raised);
}
.nav-menu-btn svg{ width:18px; height:18px; stroke:var(--ink); }

@media (max-width:860px){
  .nav-right-group{ gap:12px; }
  .nav-links{
    position:absolute; top:100%; left:0; right:0;
    flex-direction:column; align-items:flex-start; gap:0;
    background:var(--paper-raised); border-bottom:1px solid var(--line);
    padding:8px 32px 20px;
    display:none;
  }
  .nav.open .nav-links{ display:flex; }
  .nav-links a{ padding:12px 0; width:100%; border-top:1px solid var(--line); }
  .nav-links li:first-child a{ border-top:none; }
  .nav-links-cta{ margin-left:0; border-top:none !important; }
  .nav-links .btn{ margin-top:14px; width:100%; }
  .nav-menu-btn{ display:inline-flex; }
}

/* ===========================================================
   Hero
   =========================================================== */
.hero{
  position:relative;
  background:var(--brand-deep);
  color:var(--brand-on-deep);
  overflow:hidden;
  padding:110px 32px 120px;
}
.hero-flow{ position:absolute; inset:0; width:100%; height:100%; opacity:.55; }
.hero-flow path{ fill:none; stroke:var(--brand-deep-line); stroke-width:1.4; stroke-linecap:round; }
.hero-flow path.hi{ stroke:var(--brand-deep-line-hi); stroke-width:1.8; }
@media (prefers-reduced-motion: no-preference){
  .hero-flow .draw{ stroke-dasharray:12 12; animation:dash 16s linear infinite; }
}
@keyframes dash{ to{ stroke-dashoffset:-480; } }

.hero-inner{ position:relative; z-index:2; max-width:760px; }
.hero h1{
  font-size:clamp(38px,5.6vw,60px); font-weight:700; letter-spacing:-.02em; line-height:1.04;
  color:var(--brand-on-deep);
}
.hero .lede{
  margin-top:22px; font-size:18px; line-height:1.6; color:#CFE7E5; max-width:52ch;
}
.hero-actions{ display:flex; gap:14px; margin-top:34px; flex-wrap:wrap; }
.hero-strip{
  position:relative; z-index:2;
  display:flex; gap:36px; flex-wrap:wrap;
  margin-top:64px; padding-top:28px; border-top:1px solid rgba(244,250,249,.16);
}
.hero-strip .stat b{ display:block; font-family:'Sora'; font-size:22px; font-weight:700; }
.hero-strip .stat span{ font-size:12.5px; color:#9FD3DE; }

/* ===========================================================
   Section shell
   =========================================================== */
.section{ padding:100px 32px; }
.section-tight{ padding-top:0; }
.section-head{ max-width:640px; margin-bottom:56px; }
.section-head h2{ font-size:clamp(28px,3.4vw,38px); font-weight:700; letter-spacing:-.01em; }
.section-head p{ margin-top:14px; font-size:16.5px; line-height:1.6; color:var(--ink-soft); }
.section-alt{ background:var(--paper-raised); border-top:1px solid var(--line); border-bottom:1px solid var(--line); }

/* ===========================================================
   Essence
   =========================================================== */
.essence-grid{ display:grid; grid-template-columns:1fr 1fr; gap:64px; align-items:center; }
@media (max-width:860px){ .essence-grid{ grid-template-columns:1fr; gap:40px; } }
.essence-copy p{ font-size:17px; line-height:1.7; color:var(--ink-soft); }
.essence-copy p + p{ margin-top:16px; }
.tags{ display:flex; flex-wrap:wrap; gap:8px; margin-top:26px; }
.tag{
  font-family:'JetBrains Mono',monospace; font-size:12px;
  padding:7px 13px; border-radius:100px; border:1px solid var(--line);
  color:var(--ink-soft); background:var(--paper);
}
.essence-visual{
  aspect-ratio:1/1; border-radius:var(--radius-lg); background:var(--brand-deep);
  display:flex; align-items:center; justify-content:center; position:relative; overflow:hidden;
}
.essence-visual svg.pattern{ position:absolute; inset:0; width:100%; height:100%; opacity:.7; }
.essence-visual .mark-big{ position:relative; z-index:2; }

/* ===========================================================
   Process
   =========================================================== */
.process-list{ display:flex; flex-direction:column; }
.process-item{
  display:grid; grid-template-columns:64px 1fr; gap:24px;
  padding:32px 0; border-top:1px solid var(--line);
}
.process-list .process-item:last-child{ border-bottom:1px solid var(--line); }
.process-num{
  font-family:'JetBrains Mono',monospace; font-size:14px; color:var(--accent); padding-top:4px;
}
.process-body h3{ font-size:20px; font-weight:700; }
.process-body p{ margin-top:8px; font-size:15px; line-height:1.6; color:var(--ink-soft); max-width:58ch; }
@media (max-width:640px){ .process-item{ grid-template-columns:36px 1fr; } }

/* ===========================================================
   Services
   =========================================================== */
.card-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:20px; }
@media (max-width:900px){ .card-grid{ grid-template-columns:repeat(2,1fr); } }
@media (max-width:600px){ .card-grid{ grid-template-columns:1fr; } }
.svc-card{
  background:var(--paper); border:1px solid var(--line); border-radius:var(--radius-md);
  padding:28px; transition:border-color .15s ease, transform .15s ease;
}
.svc-card:hover{ border-color:var(--primary); transform:translateY(-2px); }
.svc-icon{
  width:42px; height:42px; border-radius:12px; background:var(--primary-tint);
  display:flex; align-items:center; justify-content:center; margin-bottom:18px;
}
.svc-icon svg{ width:20px; height:20px; stroke:var(--primary); fill:none; }
.svc-card h3{ font-size:16.5px; font-weight:700; }
.svc-card p{ margin-top:8px; font-size:14px; line-height:1.55; color:var(--ink-soft); }

/* ===========================================================
   Plans
   =========================================================== */
.plan-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:20px; align-items:stretch; }
@media (max-width:900px){ .plan-grid{ grid-template-columns:1fr; } }
.plan-card{
  background:var(--paper-raised); border:1px solid var(--line); border-radius:var(--radius-lg);
  padding:32px; display:flex; flex-direction:column; box-shadow:var(--shadow);
}
.plan-card.is-featured{ border-color:var(--accent); position:relative; }
.plan-badge{
  position:absolute; top:-13px; left:32px;
  background:var(--accent); color:var(--on-accent); font-family:'Sora'; font-weight:600;
  font-size:11.5px; padding:5px 12px; border-radius:100px;
}
.plan-name{ font-family:'Sora'; font-weight:700; font-size:19px; }
.plan-for{ margin-top:6px; font-size:13.5px; color:var(--muted); }
.plan-list{ list-style:none; margin:24px 0 0; padding:0; display:flex; flex-direction:column; gap:12px; flex:1; }
.plan-list li{ display:flex; gap:10px; font-size:14px; color:var(--ink-soft); line-height:1.4; }
.plan-list svg{ flex:none; width:16px; height:16px; stroke:var(--primary); margin-top:2px; }
.plan-card .btn{ margin-top:28px; width:100%; }

/* ===========================================================
   CTA banner
   =========================================================== */
.cta-banner{
  position:relative; overflow:hidden;
  background:var(--brand-deep); color:var(--brand-on-deep);
  border-radius:var(--radius-lg); padding:64px 48px;
  display:flex; align-items:center; justify-content:space-between; gap:32px; flex-wrap:wrap;
}
.cta-banner svg.pattern{ position:absolute; inset:0; width:100%; height:100%; opacity:.5; }
.cta-banner .cta-copy{ position:relative; z-index:2; max-width:460px; }
.cta-banner h2{ font-size:clamp(24px,3vw,32px); font-weight:700; color:#F4FAF9; }
.cta-banner p{ margin-top:10px; color:#CFE7E5; font-size:15px; }
.cta-banner .cta-actions{ position:relative; z-index:2; display:flex; gap:12px; flex-wrap:wrap; }

/* ===========================================================
   Footer
   =========================================================== */
.footer{ border-top:1px solid var(--line); padding:56px 32px 40px; }
.footer-top{
  display:flex; justify-content:space-between; gap:40px; flex-wrap:wrap;
  padding-bottom:40px; margin-bottom:28px; border-bottom:1px solid var(--line);
}
.footer-brand p{ margin-top:14px; font-size:14px; color:var(--muted); max-width:32ch; line-height:1.6; }
.footer-cols{ display:flex; gap:56px; flex-wrap:wrap; }
.footer-col h4{
  font-family:'JetBrains Mono',monospace; font-size:11px; letter-spacing:.1em; text-transform:uppercase;
  color:var(--muted); margin-bottom:14px;
}
.footer-col ul{ list-style:none; margin:0; padding:0; display:flex; flex-direction:column; gap:10px; }
.footer-col a{ font-size:14px; color:var(--ink-soft); }
.footer-col a:hover{ color:var(--ink); }
.footer-bottom{
  display:flex; justify-content:space-between; gap:16px; flex-wrap:wrap;
  font-size:12.5px; color:var(--muted);
}
.footer-bottom .mono{ font-size:12px; }

/* reveal-on-scroll */
[data-reveal]{ opacity:0; transform:translateY(14px); transition:opacity .5s ease, transform .5s ease; }
[data-reveal].is-visible{ opacity:1; transform:none; }
@media (prefers-reduced-motion: reduce){
  [data-reveal]{ opacity:1; transform:none; transition:none; }
}

/* ===========================================================
   Briefing form page
   =========================================================== */
.back-link{
  font-size:14px; font-weight:600; color:var(--ink-soft);
}
.back-link:hover{ color:var(--ink); }

.form-header{
  background:var(--brand-deep); color:var(--brand-on-deep);
  padding:64px 32px 56px;
}
.form-header h1{
  margin-top:14px; font-size:clamp(30px,4.4vw,44px); font-weight:700; letter-spacing:-.015em; max-width:18ch;
  color:var(--brand-on-deep);
}
.form-header .lede-dark{
  margin-top:16px; font-size:16.5px; line-height:1.6; color:#CFE7E5; max-width:56ch;
}

.form-section{ padding-top:64px; }
.form-wrap{ max-width:720px; }

.briefing-form{ display:flex; flex-direction:column; gap:44px; }
.form-group{
  background:var(--paper-raised); border:1px solid var(--line); border-radius:var(--radius-lg);
  padding:32px; display:flex; flex-direction:column; gap:20px;
}
.form-group-head{ display:flex; align-items:baseline; gap:12px; margin-bottom:4px; }
.form-step{ font-family:'JetBrains Mono',monospace; font-size:12.5px; color:var(--accent); }
.form-group-head h2{ font-size:19px; font-weight:700; }

.field-row{ display:grid; grid-template-columns:1fr 1fr; gap:18px; }
@media (max-width:560px){ .field-row{ grid-template-columns:1fr; } }

.field{ display:flex; flex-direction:column; gap:7px; }
.field label, .field-legend{
  font-size:13px; font-weight:600; color:var(--ink-soft);
}
.field input, .field select, .field textarea{
  font-family:'Manrope'; font-size:15px; color:var(--ink);
  background:var(--paper); border:1px solid var(--line); border-radius:var(--radius-sm);
  padding:11px 14px; width:100%;
  transition:border-color .15s ease;
}
.field textarea{ resize:vertical; min-height:64px; font-family:'Manrope'; line-height:1.5; }
.field input:focus, .field select:focus, .field textarea:focus{
  outline:none; border-color:var(--primary);
}
.field input::placeholder, .field textarea::placeholder{ color:var(--muted); }

.radio-group{ display:flex; gap:10px; }
.radio-pill{
  display:flex; align-items:center; gap:8px;
  font-size:14px; font-weight:600; color:var(--ink-soft);
  border:1px solid var(--line); border-radius:100px; padding:9px 16px;
  cursor:pointer; transition:border-color .15s ease, color .15s ease;
}
.radio-pill:has(input:checked){ border-color:var(--primary); color:var(--ink); background:var(--primary-tint); }
.radio-pill input{ accent-color:var(--primary); }

.honeypot{ position:absolute; left:-9999px; top:auto; width:1px; height:1px; overflow:hidden; }

.form-footer{
  display:flex; align-items:center; justify-content:space-between; gap:20px; flex-wrap:wrap;
}
.form-privacy{ font-size:12.5px; color:var(--muted); max-width:36ch; }

.form-message{
  font-size:13.5px; padding:12px 16px; border-radius:10px;
  background:var(--primary-tint); color:var(--ink-soft);
}
.form-message.is-error{ background:var(--accent-tint); color:var(--accent-deep); }

.form-success{
  text-align:center; padding:64px 24px; display:flex; flex-direction:column; align-items:center; gap:14px;
}
.form-success h2{ font-size:24px; font-weight:700; }
.form-success p{ font-size:15px; color:var(--ink-soft); max-width:44ch; line-height:1.6; }
.form-success-actions{ display:flex; gap:12px; margin-top:12px; flex-wrap:wrap; justify-content:center; }