/* ==========================================================================
   FLINTOU — Design system
   Minimalist, modern. One accent: the spark.
   ========================================================================== */

:root{
  --bg:        #FCFCFB;
  --surface:   #FFFFFF;
  --surface-2: #F5F5F2;
  --ink:       #101010;
  --ink-2:     #3A3A36;
  --muted:     #6E6E68;
  --line:      #E7E6E1;
  --line-2:    #D6D5CF;
  --accent:    #C2410C;
  --accent-sf: #FBEDE6;
  --invert-bg: #101010;
  --invert-ink:#F5F5F2;

  --max: 1240px;
  --gut: clamp(20px, 5vw, 64px);
  --r: 2px;

  --f-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;

  --step--1: clamp(.8125rem, .79rem + .12vw, .875rem);
  --step-0:  clamp(.9375rem, .91rem + .14vw, 1rem);
  --step-1:  clamp(1.0625rem, 1rem + .3vw, 1.1875rem);
  --step-2:  clamp(1.25rem, 1.13rem + .6vw, 1.625rem);
  --step-3:  clamp(1.625rem, 1.4rem + 1.1vw, 2.375rem);
  --step-4:  clamp(2.125rem, 1.6rem + 2.6vw, 4rem);
  --step-5:  clamp(2.75rem, 1.9rem + 4.2vw, 5.75rem);

  --ease: cubic-bezier(.22,.61,.36,1);
}

*,*::before,*::after{ box-sizing:border-box; }
html{ -webkit-text-size-adjust:100%; scroll-behavior:smooth; scroll-padding-top:90px; }
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--f-sans);
  font-size:var(--step-0);
  line-height:1.65;
  font-feature-settings:"kern","liga","cv05";
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img,svg{ max-width:100%; display:block; }
a{ color:inherit; }

h1,h2,h3,h4{ margin:0; font-weight:500; line-height:1.1; letter-spacing:-.025em; }
h1{ font-size:var(--step-5); letter-spacing:-.04em; }
h2{ font-size:var(--step-4); letter-spacing:-.035em; }
h3{ font-size:var(--step-2); letter-spacing:-.02em; }
h4{ font-size:var(--step-1); letter-spacing:-.015em; }
p{ margin:0 0 1.15em; }
p:last-child{ margin-bottom:0; }

.wrap{ width:100%; max-width:var(--max); margin-inline:auto; padding-inline:var(--gut); }
.lede{ font-size:var(--step-2); line-height:1.4; letter-spacing:-.02em; color:var(--ink-2); font-weight:400; }
.sub{ color:var(--muted); }
.measure{ max-width:64ch; }
.measure-s{ max-width:48ch; }
.center{ text-align:center; margin-inline:auto; }

/* ---------- eyebrow ---------- */
.eyebrow{
  display:inline-flex; align-items:center; gap:.6em;
  font-size:.6875rem; font-weight:500; letter-spacing:.18em; text-transform:uppercase;
  color:var(--muted); margin:0 0 1.5rem;
}
.eyebrow::before{
  content:""; width:6px; height:6px; border-radius:50%;
  background:var(--accent); flex:none;
}

/* ---------- header ---------- */
.site-header{
  position:sticky; top:0; z-index:100;
  background:color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter:saturate(180%) blur(14px);
  border-bottom:1px solid transparent;
  transition:border-color .3s var(--ease), background .3s var(--ease);
}
.site-header.is-stuck{ border-bottom-color:var(--line); }
.nav{
  display:flex; align-items:center; gap:2rem;
  height:76px;
  width:100%; max-width:var(--max); margin-inline:auto; padding-inline:var(--gut);
}
.brand{ display:flex; align-items:center; gap:.7rem; text-decoration:none; margin-right:auto; }
.brand svg{ height:26px; width:auto; color:var(--ink); }
.brand-name{
  font-size:.95rem; font-weight:500; letter-spacing:.34em; text-transform:uppercase;
  padding-left:.1em;
}
.nav-links{ display:flex; align-items:center; gap:1.85rem; list-style:none; margin:0; padding:0; }
.nav-links a{
  position:relative; text-decoration:none; font-size:var(--step--1); color:var(--ink-2);
  letter-spacing:-.005em; padding:.35rem 0; transition:color .2s var(--ease);
}
.nav-links a::after{
  content:""; position:absolute; left:0; right:0; bottom:0; height:1px;
  background:var(--ink); transform:scaleX(0); transform-origin:left;
  transition:transform .35s var(--ease);
}
.nav-links a:hover{ color:var(--ink); }
.nav-links a:hover::after{ transform:scaleX(1); }
.nav-links a[aria-current="page"]{ color:var(--ink); }
.nav-links a[aria-current="page"]::after{ transform:scaleX(1); background:var(--accent); }
.nav-links a.btn{ color:#fff; }
.nav-links a.btn::after{ display:none; }

.nav-toggle{
  display:none; width:42px; height:42px; margin-right:-10px;
  background:none; border:0; cursor:pointer; padding:0;
  align-items:center; justify-content:center;
}
.nav-toggle span{ display:block; width:20px; height:1.5px; background:var(--ink); position:relative; transition:background .2s; }
.nav-toggle span::before,.nav-toggle span::after{
  content:""; position:absolute; left:0; width:20px; height:1.5px; background:var(--ink);
  transition:transform .3s var(--ease), top .25s var(--ease);
}
.nav-toggle span::before{ top:-6px; }
.nav-toggle span::after{ top:6px; }
.nav-toggle[aria-expanded="true"] span{ background:transparent; }
.nav-toggle[aria-expanded="true"] span::before{ top:0; transform:rotate(45deg); }
.nav-toggle[aria-expanded="true"] span::after{ top:0; transform:rotate(-45deg); }

/* ---------- buttons ---------- */
.btn{
  --pad:.9rem 1.6rem;
  display:inline-flex; align-items:center; justify-content:center; gap:.6em;
  padding:var(--pad); border-radius:var(--r); border:1px solid var(--ink);
  background:var(--ink); color:#fff; text-decoration:none;
  font-size:var(--step--1); font-weight:500; letter-spacing:.01em;
  cursor:pointer; font-family:inherit;
  transition:background .25s var(--ease), color .25s var(--ease), border-color .25s var(--ease), transform .25s var(--ease);
}
.btn:hover{ background:var(--accent); border-color:var(--accent); }
.btn:active{ transform:translateY(1px); }
.btn .arw{ transition:transform .3s var(--ease); }
.btn:hover .arw{ transform:translateX(4px); }
.btn-ghost{ background:transparent; color:var(--ink); border-color:var(--line-2); }
.btn-ghost:hover{ background:var(--ink); color:#fff; border-color:var(--ink); }
.btn-light{ background:#fff; color:var(--ink); border-color:#fff; }
.btn-light:hover{ background:var(--accent); border-color:var(--accent); color:#fff; }
.btn-lg{ --pad:1.05rem 2rem; font-size:var(--step-0); }

.link-arrow{
  display:inline-flex; align-items:center; gap:.5em;
  font-size:var(--step--1); font-weight:500; text-decoration:none;
  border-bottom:1px solid var(--line-2); padding-bottom:.25rem;
  transition:border-color .25s var(--ease), color .25s var(--ease);
}
.link-arrow .arw{ transition:transform .3s var(--ease); }
.link-arrow:hover{ color:var(--accent); border-color:var(--accent); }
.link-arrow:hover .arw{ transform:translateX(4px); }

/* ---------- sections ---------- */
.section{ padding-block:clamp(4.5rem, 9vw, 9rem); }
.section-sm{ padding-block:clamp(3rem, 6vw, 5.5rem); }
.section-tint{ background:var(--surface-2); }
.section-dark{ background:var(--invert-bg); color:var(--invert-ink); }
.section-dark h1,.section-dark h2,.section-dark h3{ color:#fff; }
.section-dark .lede,.section-dark .sub{ color:#A9A9A2; }
.section-dark .eyebrow{ color:#8C8C86; }
.rule{ border:0; border-top:1px solid var(--line); margin:0; }

.section-head{ display:flex; flex-wrap:wrap; gap:2rem 4rem; align-items:end; justify-content:space-between; margin-bottom:clamp(2.5rem,5vw,4.5rem); }
.section-head > div{ max-width:60ch; }

/* ---------- hero ---------- */
.hero{ position:relative; padding-block:clamp(4.5rem, 11vw, 10rem) clamp(4rem, 8vw, 7rem); overflow:hidden; }
.hero-grid{ display:grid; grid-template-columns:minmax(0,1.35fr) minmax(0,1fr); gap:clamp(2.5rem,6vw,5rem); align-items:center; }
.hero h1 .spark-word{ color:var(--accent); }
.hero-mark{ position:relative; display:flex; justify-content:center; }
.hero-mark svg{ width:min(100%, 260px); color:var(--ink); }
.hero-mark::after{
  content:""; position:absolute; z-index:-1;
  width:min(120%, 560px); aspect-ratio:1; left:50%; top:50%;
  transform:translate(-50%,-50%); border-radius:50%;
  background:radial-gradient(circle, var(--accent-sf) 0%, rgba(251,237,230,.45) 42%, transparent 70%);
}
.hero-meta{
  display:flex; flex-wrap:wrap; gap:.75rem 2rem; margin-top:2.5rem;
  font-size:var(--step--1); color:var(--muted); letter-spacing:.02em;
}
.hero-meta span{ display:inline-flex; align-items:center; gap:.6em; }
.hero-meta span::before{ content:""; width:5px; height:5px; border-radius:50%; background:var(--accent); }
.hero-actions{ display:flex; flex-wrap:wrap; gap:.85rem; margin-top:2.75rem; }

/* page hero (inner pages) */
.page-hero{ padding-block:clamp(3.5rem,8vw,7rem) clamp(2.5rem,5vw,4rem); }
.page-hero h1{ font-size:var(--step-4); max-width:18ch; }
.page-hero .lede{ margin-top:1.5rem; }

/* ---------- grids ---------- */
.grid{ display:grid; gap:1px; background:var(--line); border-block:1px solid var(--line); }
.grid-2{ grid-template-columns:repeat(2,minmax(0,1fr)); }
.grid-3{ grid-template-columns:repeat(3,minmax(0,1fr)); }
.grid > .cell{ background:var(--bg); padding:clamp(1.75rem,3vw,2.75rem); }
.section-tint .grid > .cell{ background:var(--surface-2); }
.cell-num{
  font-size:.6875rem; letter-spacing:.16em; color:var(--muted);
  font-variant-numeric:tabular-nums; margin-bottom:1.5rem; display:block;
}
.cell h3{ font-size:var(--step-1); margin-bottom:.75rem; }
.cell p{ color:var(--muted); font-size:var(--step--1); line-height:1.7; }

.cards{ display:grid; gap:clamp(1rem,2vw,1.5rem); }
.cards-2{ grid-template-columns:repeat(2,minmax(0,1fr)); }
.cards-3{ grid-template-columns:repeat(3,minmax(0,1fr)); }
.card{
  background:var(--surface); border:1px solid var(--line); border-radius:var(--r);
  padding:clamp(1.6rem,2.6vw,2.4rem);
  display:flex; flex-direction:column; gap:.85rem;
  transition:border-color .3s var(--ease), transform .3s var(--ease), box-shadow .3s var(--ease);
}
.card:hover{ border-color:var(--line-2); transform:translateY(-2px); box-shadow:0 12px 40px -28px rgba(0,0,0,.4); }
.card h3{ font-size:var(--step-1); }
.card p{ color:var(--muted); font-size:var(--step--1); line-height:1.7; }
.card .link-arrow{ margin-top:auto; padding-top:1rem; align-self:flex-start; }

/* numbered service list */
.svc-list{ border-top:1px solid var(--line); }
.svc{
  display:grid; grid-template-columns:5rem minmax(0,1fr) minmax(0,1.15fr);
  gap:clamp(1rem,3vw,3rem);
  padding-block:clamp(2rem,3.5vw,3rem);
  border-bottom:1px solid var(--line);
  align-items:start;
}
.svc-num{ font-size:.75rem; letter-spacing:.14em; color:var(--muted); font-variant-numeric:tabular-nums; padding-top:.5rem; }
.svc h3{ font-size:var(--step-2); }
.svc-body{ color:var(--muted); }
.svc-body p{ margin-bottom:.9em; }

/* steps */
.steps{ counter-reset:s; display:grid; gap:1px; background:var(--line); border-block:1px solid var(--line); grid-template-columns:repeat(4,minmax(0,1fr)); }
.step{ background:var(--bg); padding:clamp(1.6rem,2.6vw,2.4rem); }
.section-tint .step{ background:var(--surface-2); }
.step::before{
  counter-increment:s; content:"0" counter(s);
  display:block; font-size:.75rem; letter-spacing:.14em; color:var(--accent);
  margin-bottom:1.25rem; font-variant-numeric:tabular-nums;
}
.step p{ font-size:var(--step-0); color:var(--ink-2); margin:0; }

/* tag row */
.tags{ display:flex; flex-wrap:wrap; gap:.5rem; list-style:none; margin:0; padding:0; }
.tags li{
  font-size:var(--step--1); color:var(--ink-2);
  border:1px solid var(--line-2); border-radius:999px; padding:.4rem 1rem;
  background:var(--surface);
}
.section-dark .tags li{ background:transparent; border-color:#33332F; color:#D3D3CC; }

/* split feature */
.split{ display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:clamp(2rem,5vw,5rem); align-items:start; }
.split-sticky{ position:sticky; top:110px; }

/* stat / callout band */
.band{
  display:flex; flex-wrap:wrap; align-items:center; justify-content:space-between;
  gap:2rem; padding:clamp(2rem,4vw,3.25rem);
  border:1px solid var(--line); border-radius:var(--r); background:var(--surface);
}
.band h3{ max-width:26ch; }

/* ---------- forms ---------- */
.form{ display:grid; gap:clamp(1.75rem,3vw,2.5rem); }
.fieldset{ border:0; margin:0; padding:0; }
.fieldset > legend{
  font-size:.6875rem; letter-spacing:.18em; text-transform:uppercase; color:var(--muted);
  padding:0 0 1.25rem; width:100%; border-bottom:1px solid var(--line); margin-bottom:1.75rem;
}
.field-grid{ display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:1.25rem 1.5rem; }
.field{ display:flex; flex-direction:column; gap:.5rem; }
.field-full{ grid-column:1 / -1; }
.field label,.field .lbl{ font-size:var(--step--1); font-weight:500; color:var(--ink-2); }
.field .hint{ font-size:.8125rem; color:var(--muted); }
.field input[type=text],.field input[type=email],.field input[type=tel],.field input[type=url],
.field input[type=number],.field input[type=date],.field select,.field textarea{
  font-family:inherit; font-size:var(--step-0); color:var(--ink);
  background:var(--surface); border:1px solid var(--line-2); border-radius:var(--r);
  padding:.8rem 1rem; width:100%;
  transition:border-color .2s var(--ease), box-shadow .2s var(--ease);
}
.field textarea{ min-height:150px; resize:vertical; line-height:1.6; }
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none; border-color:var(--ink); box-shadow:0 0 0 3px rgba(16,16,16,.06);
}
.field input[type=file]{ font-size:var(--step--1); color:var(--muted); }
.field input[type=file]::file-selector-button{
  font-family:inherit; font-size:var(--step--1); margin-right:1rem; cursor:pointer;
  border:1px solid var(--line-2); background:var(--surface-2); color:var(--ink);
  padding:.55rem 1rem; border-radius:var(--r);
}
.choices{ display:flex; flex-wrap:wrap; gap:.5rem; }
.choice{ position:relative; }
.choice input{ position:absolute; opacity:0; inset:0; cursor:pointer; }
.choice span{
  display:block; font-size:var(--step--1); color:var(--ink-2);
  border:1px solid var(--line-2); border-radius:999px; padding:.45rem 1.05rem;
  background:var(--surface); cursor:pointer;
  transition:all .2s var(--ease);
}
.choice input:checked + span{ background:var(--ink); border-color:var(--ink); color:#fff; }
.choice input:focus-visible + span{ box-shadow:0 0 0 3px rgba(16,16,16,.12); }
.choice-group{ display:grid; gap:1.25rem; }
.choice-group h4{ font-size:var(--step--1); font-weight:500; color:var(--muted); letter-spacing:.02em; margin-bottom:.65rem; }
.consent{ display:flex; gap:.75rem; align-items:flex-start; font-size:var(--step--1); color:var(--muted); }
.consent input{ margin-top:.35rem; accent-color:var(--accent); width:16px; height:16px; flex:none; }
.form-actions{ display:flex; flex-wrap:wrap; align-items:center; gap:1rem; }
.form-note{ font-size:.8125rem; color:var(--muted); }
.form-status{
  display:none; font-size:var(--step--1); padding:1rem 1.25rem; border-radius:var(--r);
  background:var(--accent-sf); border:1px solid #F0D5C6; color:#8A2C08;
}
.form-status.is-visible{ display:block; }

/* ---------- footer ---------- */
.site-footer{ background:var(--invert-bg); color:#A9A9A2; padding-block:clamp(3.5rem,6vw,5.5rem) 2rem; }
.footer-top{ display:grid; grid-template-columns:minmax(0,1.4fr) repeat(3,minmax(0,1fr)); gap:2.5rem 3rem; padding-bottom:3.5rem; }
.footer-brand svg{ height:30px; width:auto; color:#fff; margin-bottom:1.25rem; }
.footer-brand p{ color:#8C8C86; font-size:var(--step--1); max-width:34ch; }
.footer-tag{ color:#fff; font-size:var(--step--1); letter-spacing:.24em; text-transform:uppercase; margin-bottom:.85rem; }
.footer-col h4{ font-size:.6875rem; letter-spacing:.18em; text-transform:uppercase; color:#6E6E68; margin-bottom:1.25rem; font-weight:500; }
.footer-col ul{ list-style:none; margin:0; padding:0; display:grid; gap:.7rem; }
.footer-col a{ text-decoration:none; font-size:var(--step--1); color:#C3C3BC; transition:color .2s var(--ease); }
.footer-col a:hover{ color:#fff; }
.footer-bottom{
  display:flex; flex-wrap:wrap; gap:1rem 2rem; justify-content:space-between;
  border-top:1px solid #262622; padding-top:2rem; font-size:.8125rem; color:#6E6E68;
}

/* ---------- CTA band ---------- */
.cta{ background:var(--invert-bg); color:#fff; }
.cta .wrap{ padding-block:clamp(4rem,8vw,7rem); text-align:center; }
.cta h2{ max-width:20ch; margin-inline:auto; }
.cta p{ color:#A9A9A2; margin-top:1.25rem; }
.cta .btn-wrap{ margin-top:2.5rem; display:flex; gap:.85rem; justify-content:center; flex-wrap:wrap; }
.cta .btn-ghost{ color:#fff; border-color:#3A3A36; }
.cta .btn-ghost:hover{ background:#fff; color:var(--ink); border-color:#fff; }

/* ---------- reveal ---------- */
/* Hidden only once JS has confirmed it can reveal them again.
   Without JS the class is never set, so all content stays visible. */
.reveal-ready [data-reveal]{
  opacity:0; transform:translateY(14px);
  transition:opacity .7s var(--ease), transform .7s var(--ease);
}
.reveal-ready [data-reveal].is-in{ opacity:1; transform:none; }
@media (prefers-reduced-motion:reduce){
  *{ animation:none !important; transition-duration:.01ms !important; }
  .reveal-ready [data-reveal]{ opacity:1; transform:none; }
  html{ scroll-behavior:auto; }
}

/* ---------- responsive ---------- */
@media (max-width:1000px){
  .steps{ grid-template-columns:repeat(2,minmax(0,1fr)); }
  .footer-top{ grid-template-columns:repeat(2,minmax(0,1fr)); }
}
@media (max-width:860px){
  .nav-toggle{ display:flex; }
  .nav-links{
    position:fixed; inset:76px 0 auto 0;
    flex-direction:column; align-items:flex-start; gap:0;
    background:var(--bg); border-bottom:1px solid var(--line);
    padding:1rem var(--gut) 2rem;
    max-height:0; overflow:hidden; visibility:hidden;
    transition:max-height .4s var(--ease), visibility .4s;
  }
  .nav-links.is-open{ max-height:min(80vh,520px); visibility:visible; overflow:auto; }
  .nav-links li{ width:100%; border-bottom:1px solid var(--line); }
  .nav-links li:last-child{ border-bottom:0; padding-top:1rem; }
  .nav-links a{ display:block; padding:1rem 0; font-size:var(--step-0); }
  .nav-links a::after{ display:none; }
  .nav-links .btn{ width:100%; }

  .hero-grid{ grid-template-columns:1fr; }
  .hero-mark{ order:-1; justify-content:flex-start; }
  .hero-mark svg{ width:120px; }
  .grid-3,.grid-2,.cards-3,.cards-2{ grid-template-columns:1fr; }
  .svc{ grid-template-columns:1fr; gap:1rem; }
  .svc-num{ padding-top:0; }
  .split{ grid-template-columns:1fr; }
  .split-sticky{ position:static; }
  .field-grid{ grid-template-columns:1fr; }
}
@media (max-width:560px){
  .steps{ grid-template-columns:1fr; }
  .footer-top{ grid-template-columns:1fr; }
  .band{ flex-direction:column; align-items:flex-start; }
}