/* ==========================================================================
   BUENA TOV — design tokens
   Two words for "good" in two languages — the mark is a seal of approval.
   Palette: true ink black + paper white, one stamp-red accent. No cream,
   no rounded SaaS cards, no gradient wash.
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Fraunces:opsz,wght@9..144,400;9..144,500;9..144,600&family=IBM+Plex+Sans:wght@400;500;600&display=swap');

:root{
  --ink:        #070707;
  --paper:      #ffffff;
  --surface:    #0c0c0b;   /* reversed dark section */
  --surface-tx: #f2f1ec;   /* text on dark section */
  --accent:     #ac3324;   /* stamp-ink red */
  --accent-tx:  #fff7f1;
  --line:       #e0ddd5;
  --line-dark:  #2a2a27;
  --muted:      #6d6c66;
  --muted-lt:   #a9a79c;

  --font-display: 'Fraunces', Georgia, 'Times New Roman', serif;
  --font-body: 'IBM Plex Sans', -apple-system, 'Segoe UI', sans-serif;

  --wrap: 1160px;
  --gutter: clamp(20px, 5vw, 64px);
}

*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior:auto; }
  *,*::before,*::after{ animation-duration:0.001ms !important; animation-iteration-count:1 !important; transition-duration:0.001ms !important; }
}

body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
}

img,svg{ display:block; max-width:100%; }
a{ color:inherit; }
button{ font-family:inherit; }

.wrap{
  max-width:var(--wrap);
  margin-inline:auto;
  padding-inline:var(--gutter);
}

h1,h2,h3{
  font-family:var(--font-display);
  font-weight:500;
  line-height:1.08;
  margin:0;
  letter-spacing:-0.01em;
}

p{ margin:0; }

.section-head{
  max-width:640px;
  margin-bottom:clamp(32px,5vw,56px);
}
.section-head h2{
  font-size:clamp(28px,3.6vw,40px);
  margin-bottom:14px;
}
.section-head p{
  color:var(--muted);
  font-size:17px;
  max-width:52ch;
}

.section-index{
  font-family:var(--font-body);
  font-size:13px;
  color:var(--muted-lt);
  letter-spacing:0.03em;
  margin-bottom:10px;
}

section{ padding-block:clamp(64px,10vw,120px); }
section + section{ border-top:1px solid var(--line); }

/* ---------------------------------- header --------------------------- */

.site-header{
  position:sticky; top:0; z-index:50;
  background:rgba(255,255,255,0.92);
  backdrop-filter:saturate(140%) blur(8px);
  border-bottom:1px solid var(--line);
}
.site-header .wrap{
  display:flex; align-items:center; justify-content:space-between;
  height:76px;
}
.brand{
  display:flex; align-items:center; gap:10px;
  font-family:var(--font-display);
  font-size:19px;
  font-weight:500;
  text-decoration:none;
  color:var(--ink);
}
.brand .mark{ width:30px; height:30px; flex:none; }

.main-nav{ display:flex; align-items:center; gap:36px; }
.main-nav ul{ list-style:none; display:flex; gap:28px; margin:0; padding:0; }
.main-nav a{
  text-decoration:none; font-size:14.5px; color:var(--ink);
  position:relative; padding-bottom:4px;
}
.main-nav a::after{
  content:""; position:absolute; left:0; right:0; bottom:0;
  height:1px; background:var(--ink);
  transform:scaleX(0); transform-origin:left;
  transition:transform .25s ease;
}
.main-nav a:hover::after{ transform:scaleX(1); }

.call-pill{
  display:inline-flex; align-items:center; gap:8px;
  border:1px solid var(--ink); padding:9px 16px;
  text-decoration:none; font-size:14px; font-weight:500;
  color:var(--ink); white-space:nowrap;
  transition:background .2s ease, color .2s ease;
}
.call-pill:hover{ background:var(--ink); color:var(--paper); }

.nav-toggle{
  display:none; background:none; border:0; cursor:pointer;
  width:32px; height:32px; padding:0; position:relative;
}
.nav-toggle span{
  position:absolute; left:5px; right:5px; height:1px; background:var(--ink);
  transition:transform .2s ease, opacity .2s ease;
}
.nav-toggle span:nth-child(1){ top:11px; }
.nav-toggle span:nth-child(2){ top:20px; }
.nav-toggle.open span:nth-child(1){ transform:translateY(4.5px) rotate(45deg); }
.nav-toggle.open span:nth-child(2){ transform:translateY(-4.5px) rotate(-45deg); }

@media (max-width: 860px){
  .main-nav ul{ display:none; }
  .call-pill span.txt{ display:none; }
  .nav-toggle{ display:block; }
  .site-header.menu-open .main-nav{
    position:fixed; inset:76px 0 0 0; background:var(--paper);
    display:flex; flex-direction:column; padding:32px var(--gutter);
  }
  .site-header.menu-open .main-nav ul{
    display:flex; flex-direction:column; gap:0;
  }
  .site-header.menu-open .main-nav a{
    display:block; padding:16px 0; border-bottom:1px solid var(--line); font-size:20px;
  }
}

/* ---------------------------------- hero ------------------------------ */

.hero{
  padding-top:clamp(56px,9vw,110px);
  padding-bottom:clamp(56px,9vw,110px);
}
.hero .wrap{
  display:grid;
  grid-template-columns:1.15fr 0.85fr;
  gap:clamp(32px,6vw,64px);
  align-items:center;
}
.hero-eyebrow{
  font-size:14.5px; color:var(--muted); margin-bottom:20px; max-width:46ch;
}
.hero h1{
  font-size:clamp(38px,5.6vw,64px);
}
.hero-lede{
  margin-top:24px; max-width:48ch; color:var(--muted); font-size:18px;
}
.hero-actions{ display:flex; gap:14px; margin-top:36px; flex-wrap:wrap; }

.btn{
  display:inline-flex; align-items:center; gap:8px;
  padding:14px 24px; font-size:15px; font-weight:500;
  text-decoration:none; border:1px solid var(--ink); cursor:pointer;
}
.btn-solid{ background:var(--ink); color:var(--paper); }
.btn-solid:hover{ background:#2a2a27; }
.btn-outline{ background:transparent; color:var(--ink); }
.btn-outline:hover{ background:var(--ink); color:var(--paper); }

.seal-wrap{
  display:flex; justify-content:center; align-items:center;
}
.seal{
  width:min(320px,90%);
  transform:rotate(-6deg);
}
.seal .ring{ fill:none; stroke:var(--ink); }
.seal .tick{ stroke:var(--ink); }
.seal text{
  font-family:var(--font-display);
  fill:var(--ink);
}
.seal .check{
  fill:none; stroke:var(--accent); stroke-width:5; stroke-linecap:round; stroke-linejoin:round;
}
.seal .rule{ stroke:var(--ink); }

@media (max-width: 780px){
  .hero .wrap{ grid-template-columns:1fr; }
  .seal-wrap{ order:-1; margin-bottom:12px; }
  .seal{ width:min(220px,70%); }
}

/* ---------------------------------- services (ledger) ------------------ */

.ledger{ border-top:1px solid var(--line); }
.ledger-row{
  display:grid;
  grid-template-columns:280px 1fr;
  gap:32px;
  padding-block:28px;
  border-bottom:1px solid var(--line);
}
.ledger-row h3{
  font-size:22px; font-weight:500;
}
.ledger-row p{ color:var(--muted); max-width:56ch; }

@media (max-width: 700px){
  .ledger-row{ grid-template-columns:1fr; gap:8px; }
}

/* ---------------------------------- process (sequence) ------------------ */

.process-list{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:0;
  border-top:1px solid var(--line);
  border-left:1px solid var(--line);
}
.process-item{
  padding:32px 28px;
  border-right:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.process-num{
  font-family:var(--font-display);
  font-size:15px;
  color:var(--accent);
  margin-bottom:18px;
}
.process-item h3{ font-size:19px; margin-bottom:10px; }
.process-item p{ color:var(--muted); font-size:15px; }

@media (max-width: 900px){
  .process-list{ grid-template-columns:1fr 1fr; }
}
@media (max-width: 560px){
  .process-list{ grid-template-columns:1fr; }
}

/* ---------------------------------- capability tiles ------------------- */

.tiles{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:1px;
  background:var(--line);
  border:1px solid var(--line);
}
.tile{
  background:var(--paper);
  padding:30px 24px;
  min-height:150px;
  display:flex; flex-direction:column; justify-content:space-between;
}
.tile-label{ font-size:13px; color:var(--muted-lt); }
.tile h3{ font-size:18px; margin-top:20px; }

@media (max-width: 900px){ .tiles{ grid-template-columns:1fr 1fr; } }
@media (max-width: 560px){ .tiles{ grid-template-columns:1fr; } }

/* ---------------------------------- studio (dark section) -------------- */

.studio{
  background:var(--surface);
  color:var(--surface-tx);
}
.studio .section-head p{ color:var(--muted-lt); }
.studio .section-index{ color:var(--muted-lt); }
.studio-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:56px;
}
.studio-copy p{ font-size:17px; color:#cfcdc3; max-width:52ch; }
.principles{ list-style:none; margin:0; padding:0; display:flex; flex-direction:column; }
.principles li{
  padding:22px 0; border-top:1px solid var(--line-dark);
  display:grid; grid-template-columns:28px 1fr; gap:16px;
}
.principles li:last-child{ border-bottom:1px solid var(--line-dark); }
.principles .mark-dot{ color:var(--accent); font-family:var(--font-display); font-size:20px; }
.principles h4{ margin:0 0 6px; font-family:var(--font-body); font-weight:600; font-size:15.5px; }
.principles p{ color:var(--muted-lt); font-size:14.5px; }

@media (max-width: 780px){
  .studio-grid{ grid-template-columns:1fr; gap:36px; }
}

/* ---------------------------------- contact ----------------------------- */

.contact-grid{
  display:grid;
  grid-template-columns:0.9fr 1.1fr;
  gap:clamp(32px,6vw,72px);
}
.contact-info dl{ margin:28px 0 0; }
.contact-info .row{
  padding:18px 0; border-top:1px solid var(--line);
  display:grid; grid-template-columns:100px 1fr; gap:16px;
}
.contact-info .row:last-child{ border-bottom:1px solid var(--line); }
.contact-info dt{ color:var(--muted); font-size:13.5px; }
.contact-info dd{ margin:0; font-size:16px; }
.contact-info a{ text-decoration:none; }
.contact-info a:hover{ text-decoration:underline; }

.brief-form{ display:flex; flex-direction:column; gap:18px; }
.field{ display:flex; flex-direction:column; gap:8px; }
.field label{ font-size:13.5px; color:var(--muted); }
.field input, .field select, .field textarea{
  border:0; border-bottom:1px solid var(--line);
  padding:10px 2px; font-size:16px; font-family:inherit; background:transparent;
  color:var(--ink);
}
.field input:focus, .field select:focus, .field textarea:focus{
  outline:none; border-bottom-color:var(--ink);
}
.field textarea{ resize:vertical; min-height:96px; }
.form-row{ display:grid; grid-template-columns:1fr 1fr; gap:18px; }
@media (max-width:560px){ .form-row{ grid-template-columns:1fr; } }

.form-note{
  font-size:13.5px; color:var(--muted-lt); margin-top:4px;
}
.form-success{
  display:none; padding:16px 0; font-size:15px; border-top:1px solid var(--line);
}
.form-success.show{ display:block; }

/* ---------------------------------- footer ------------------------------ */

.site-footer{
  background:var(--surface); color:var(--surface-tx);
  padding-block:56px 28px;
}
.footer-top{
  display:grid; grid-template-columns:1.3fr 0.8fr 0.9fr;
  gap:40px;
  padding-bottom:40px; border-bottom:1px solid var(--line-dark);
}
.footer-brand{ font-family:var(--font-display); font-size:20px; }
.footer-tag{ margin-top:14px; color:var(--muted-lt); max-width:36ch; font-size:14.5px; }
.footer-col h5{ margin:0 0 14px; font-size:13px; color:var(--muted-lt); font-weight:500; }
.footer-col ul{ list-style:none; margin:0; padding:0; display:flex; flex-direction:column; gap:10px; }
.footer-col a{ text-decoration:none; font-size:14.5px; }
.footer-col a:hover{ text-decoration:underline; }
.footer-bottom{
  display:flex; justify-content:space-between; flex-wrap:wrap; gap:12px;
  padding-top:22px; font-size:13px; color:var(--muted-lt);
}
.footer-bottom a{ text-decoration:none; color:var(--muted-lt); }
.footer-bottom a:hover{ color:var(--surface-tx); }

@media (max-width:780px){
  .footer-top{ grid-template-columns:1fr; gap:28px; }
}

/* ---------------------------------- legal (privacy) page ---------------- */

.legal-hero{
  padding-top:clamp(48px,8vw,84px); padding-bottom:24px;
}
.legal-hero .section-index{ margin-bottom:16px; }
.legal-hero h1{ font-size:clamp(32px,4.6vw,48px); }
.legal-updated{ margin-top:16px; color:var(--muted); font-size:14.5px; }

.legal-body{ padding-top:8px; padding-bottom:80px; }
.legal-body .wrap{
  display:grid; grid-template-columns:220px 1fr; gap:56px;
}
.legal-toc{ position:sticky; top:100px; align-self:start; }
.legal-toc ul{ list-style:none; margin:0; padding:0; display:flex; flex-direction:column; gap:10px; }
.legal-toc a{ text-decoration:none; font-size:14px; color:var(--muted); }
.legal-toc a:hover{ color:var(--ink); }

.legal-content h2{
  font-size:22px; font-weight:500; margin-top:48px; margin-bottom:14px;
  scroll-margin-top:100px;
}
.legal-content h2:first-child{ margin-top:0; }
.legal-content p{ color:var(--muted); margin-bottom:14px; max-width:66ch; }
.legal-content ul{ color:var(--muted); padding-left:20px; margin-bottom:14px; max-width:66ch; }
.legal-content li{ margin-bottom:6px; }
.legal-content strong{ color:var(--ink); }

@media (max-width: 860px){
  .legal-body .wrap{ grid-template-columns:1fr; }
  .legal-toc{ position:static; margin-bottom:32px; }
  .legal-toc ul{ flex-direction:row; flex-wrap:wrap; gap:16px; }
}