/* ==========================================================================
   BYYASHU — Brand & Growth Studio
   Design tokens
   ========================================================================== */
:root{
  --ink:        #14140f;
  --ink-soft:   #2a2a22;
  --bone:       #f0f1ec;
  --bone-dim:   #e6e7e0;
  --verdigris:  #3e6259;
  --verdigris-deep: #294a42;
  --clay:       #b5673a;
  --line:       #d7d6cc;
  --muted:      #6b6b60;
  --white:      #ffffff;

  --serif: "Fraunces", "Iowan Old Style", ui-serif, Georgia, serif;
  --sans:  "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --mono:  "JetBrains Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;

  --max: 1180px;
  --pad: clamp(24px, 5vw, 64px);
}

*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  background:var(--bone);
  color:var(--ink);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
}
img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
ul{ margin:0; padding:0; list-style:none; }
h1,h2,h3,h4{ margin:0; font-family:var(--serif); font-weight:600; letter-spacing:-0.01em; }
p{ margin:0; }
button{ font-family:inherit; cursor:pointer; }

:focus-visible{
  outline:2px solid var(--verdigris);
  outline-offset:3px;
}
@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{ animation-duration:0.001ms !important; animation-iteration-count:1 !important; transition-duration:0.001ms !important; scroll-behavior:auto !important; }
}

.wrap{
  max-width:var(--max);
  margin:0 auto;
  padding:0 var(--pad);
}

.eyebrow{
  font-family:var(--mono);
  font-size:12px;
  letter-spacing:0.14em;
  text-transform:uppercase;
  color:var(--verdigris-deep);
  display:flex;
  align-items:center;
  gap:10px;
}
.eyebrow::before{
  content:"";
  width:22px;
  height:1px;
  background:var(--verdigris-deep);
  display:inline-block;
}

/* ---------- Nav ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:50;
  background:rgba(240,241,236,0.86);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.nav{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:20px var(--pad);
  max-width:var(--max);
  margin:0 auto;
}
.logo{
  font-family:var(--serif);
  font-size:20px;
  font-weight:700;
  letter-spacing:-0.02em;
}
.logo span{ color:var(--verdigris); }
.nav-links{
  display:flex;
  gap:36px;
  font-size:14px;
}
.nav-links a{
  position:relative;
  padding:4px 0;
  color:var(--ink-soft);
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:0; bottom:0;
  width:0%;
  height:1px;
  background:var(--ink);
  transition:width .25s ease;
}
.nav-links a:hover::after,
.nav-links a[aria-current="page"]::after{ width:100%; }
.nav-links a[aria-current="page"]{ color:var(--ink); font-weight:600; }

.nav-cta{
  display:inline-flex;
  align-items:center;
  gap:8px;
  background:var(--ink);
  color:var(--bone);
  padding:10px 18px;
  border-radius:2px;
  font-size:13px;
  letter-spacing:0.02em;
  transition:background .2s ease, transform .2s ease;
}
.nav-cta:hover{ background:var(--verdigris-deep); transform:translateY(-1px); }

.nav-toggle{
  display:none;
  background:none;
  border:1px solid var(--ink);
  width:38px; height:38px;
  align-items:center; justify-content:center;
}
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after{
  content:"";
  display:block;
  width:16px; height:1px;
  background:var(--ink);
  position:relative;
}
.nav-toggle span::before{ position:absolute; top:-5px; }
.nav-toggle span::after{ position:absolute; top:5px; }

@media (max-width:760px){
  .nav-links{
    position:fixed;
    inset:65px 0 0 0;
    background:var(--bone);
    flex-direction:column;
    align-items:flex-start;
    padding:32px var(--pad);
    gap:22px;
    font-size:18px;
    transform:translateY(-8px);
    opacity:0;
    pointer-events:none;
    transition:opacity .2s ease, transform .2s ease;
  }
  .nav-links.open{ opacity:1; transform:translateY(0); pointer-events:auto; }
  .nav-cta{ display:none; }
  .nav-links.open ~ .nav-cta, .nav-links.open .nav-cta-mobile{ display:inline-flex; }
  .nav-toggle{ display:flex; }
}

/* ---------- Hero ---------- */
.hero{
  padding:clamp(60px, 12vh, 120px) var(--pad) clamp(50px, 8vh, 90px);
  max-width:var(--max);
  margin:0 auto;
}
.hero-top{
  display:flex;
  justify-content:space-between;
  align-items:flex-end;
  gap:40px;
  margin-bottom:36px;
  flex-wrap:wrap;
}
.hero h1{
  font-size:clamp(2.6rem, 6vw, 5rem);
  line-height:1.02;
  max-width:16ch;
}
.hero h1 em{
  font-style:italic;
  color:var(--verdigris);
  font-weight:500;
}
.word-cycle{
  display:inline-grid;
}
.word-cycle span{
  grid-area:1/1;
  opacity:0;
  transform:translateY(8px);
  animation:cycle 8s infinite;
  font-style:italic;
  color:var(--verdigris);
}
.word-cycle span:nth-child(1){ animation-delay:0s; }
.word-cycle span:nth-child(2){ animation-delay:2s; }
.word-cycle span:nth-child(3){ animation-delay:4s; }
.word-cycle span:nth-child(4){ animation-delay:6s; }
@keyframes cycle{
  0%, 3%{ opacity:0; transform:translateY(8px); }
  8%, 20%{ opacity:1; transform:translateY(0); }
  25%, 100%{ opacity:0; transform:translateY(-8px); }
}

.hero-meta{
  max-width:280px;
  font-size:14.5px;
  color:var(--muted);
  padding-bottom:6px;
}
.hero-actions{
  display:flex;
  gap:16px;
  margin-top:30px;
  flex-wrap:wrap;
}

.btn{
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding:14px 26px;
  font-size:14px;
  letter-spacing:0.02em;
  border-radius:2px;
  transition:all .2s ease;
}
.btn-primary{ background:var(--ink); color:var(--bone); }
.btn-primary:hover{ background:var(--verdigris-deep); transform:translateY(-1px); }
.btn-outline{ border:1px solid var(--ink); color:var(--ink); }
.btn-outline:hover{ background:var(--ink); color:var(--bone); }

/* Marquee */
.marquee{
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  overflow:hidden;
  padding:16px 0;
  background:var(--bone-dim);
}
.marquee-track{
  display:flex;
  gap:48px;
  white-space:nowrap;
  width:max-content;
  animation:scroll-left 28s linear infinite;
  font-family:var(--mono);
  font-size:12.5px;
  letter-spacing:0.1em;
  text-transform:uppercase;
  color:var(--muted);
}
@keyframes scroll-left{
  from{ transform:translateX(0); }
  to{ transform:translateX(-50%); }
}

/* ---------- Sections ---------- */
section{ padding:clamp(56px, 9vh, 110px) 0; }
.section-head{
  display:flex;
  justify-content:space-between;
  align-items:flex-end;
  gap:30px;
  margin-bottom:48px;
  flex-wrap:wrap;
}
.section-head h2{ font-size:clamp(1.9rem, 3.4vw, 2.6rem); max-width:14ch; }
.section-head p{ max-width:340px; color:var(--muted); font-size:15px; }

.divider{ border:none; border-top:1px solid var(--line); }

/* Service cards */
.grid-4{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:1px;
  background:var(--line);
  border:1px solid var(--line);
}
.service-card{
  background:var(--bone);
  padding:34px 26px;
  display:flex;
  flex-direction:column;
  gap:16px;
  transition:background .25s ease;
}
.service-card:hover{ background:var(--white); }
.service-index{
  font-family:var(--mono);
  font-size:12px;
  color:var(--verdigris);
}
.service-card h3{ font-size:1.2rem; }
.service-card p{ color:var(--muted); font-size:14px; }
.service-card a{
  margin-top:auto;
  font-size:13px;
  font-weight:600;
  border-bottom:1px solid var(--ink);
  width:fit-content;
}
@media (max-width:900px){
  .grid-4{ grid-template-columns:repeat(2,1fr); }
}
@media (max-width:560px){
  .grid-4{ grid-template-columns:1fr; }
}

/* Process */
.process-list{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:30px;
}
.process-step{ border-top:1px solid var(--ink); padding-top:18px; }
.process-step .num{ font-family:var(--mono); font-size:13px; color:var(--verdigris); }
.process-step h4{ font-size:1.05rem; margin:10px 0 8px; }
.process-step p{ font-size:14px; color:var(--muted); }
@media (max-width:900px){
  .process-list{ grid-template-columns:repeat(2,1fr); }
}
@media (max-width:560px){
  .process-list{ grid-template-columns:1fr; }
}

/* Work grid */
.work-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:28px;
}
.work-card{
  border:1px solid var(--line);
  background:var(--white);
  overflow:hidden;
  transition:transform .25s ease, box-shadow .25s ease;
}
.work-card:hover{ transform:translateY(-4px); box-shadow:0 14px 30px rgba(20,20,15,0.08); }
.work-thumb{
  aspect-ratio:4/3;
  background:
    linear-gradient(135deg, var(--verdigris) 0%, var(--ink) 100%);
  position:relative;
}
.work-thumb span{
  position:absolute;
  bottom:14px; left:14px;
  color:var(--bone);
  font-family:var(--mono);
  font-size:11px;
  letter-spacing:.08em;
  text-transform:uppercase;
}
.work-body{ padding:20px 22px 24px; }
.work-body h3{ font-size:1.1rem; margin-bottom:6px; }
.work-body p{ font-size:13.5px; color:var(--muted); }
.tag-row{ display:flex; gap:8px; margin-top:14px; flex-wrap:wrap; }
.tag{
  font-family:var(--mono);
  font-size:10.5px;
  letter-spacing:.05em;
  text-transform:uppercase;
  border:1px solid var(--line);
  padding:4px 8px;
  color:var(--muted);
}
@media (max-width:900px){ .work-grid{ grid-template-columns:1fr 1fr; } }
@media (max-width:600px){ .work-grid{ grid-template-columns:1fr; } }

/* CTA banner */
.cta-banner{
  background:var(--ink);
  color:var(--bone);
  border-radius:2px;
  padding:clamp(40px,7vw,72px);
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:30px;
  flex-wrap:wrap;
}
.cta-banner h2{ color:var(--bone); font-size:clamp(1.7rem,3.4vw,2.4rem); max-width:16ch; }
.cta-banner .btn-primary{ background:var(--verdigris); }
.cta-banner .btn-primary:hover{ background:#4d7568; }

/* Testimonial */
.testimonial{
  border-left:2px solid var(--verdigris);
  padding-left:28px;
  max-width:640px;
}
.testimonial p.quote{
  font-family:var(--serif);
  font-size:clamp(1.2rem,2.4vw,1.6rem);
  line-height:1.4;
  font-style:italic;
}
.testimonial .who{
  margin-top:18px;
  font-family:var(--mono);
  font-size:12px;
  letter-spacing:.05em;
  text-transform:uppercase;
  color:var(--muted);
}

/* Forms */
.contact-layout{
  display:grid;
  grid-template-columns:1.2fr 0.8fr;
  gap:60px;
}
@media (max-width:860px){ .contact-layout{ grid-template-columns:1fr; } }

.field{ margin-bottom:22px; }
.field label{
  display:block;
  font-family:var(--mono);
  font-size:11.5px;
  letter-spacing:.06em;
  text-transform:uppercase;
  color:var(--muted);
  margin-bottom:8px;
}
.field input, .field select, .field textarea{
  width:100%;
  border:none;
  border-bottom:1px solid var(--ink);
  background:transparent;
  padding:10px 2px;
  font-family:var(--sans);
  font-size:15px;
  color:var(--ink);
}
.field input:focus, .field select:focus, .field textarea:focus{
  outline:none;
  border-bottom:1px solid var(--verdigris);
}
.field textarea{ resize:vertical; min-height:110px; }

.info-block{ margin-bottom:34px; }
.info-block h4{
  font-family:var(--mono);
  font-size:11.5px;
  letter-spacing:.06em;
  text-transform:uppercase;
  color:var(--verdigris-deep);
  margin-bottom:10px;
}
.info-block p, .info-block a{ font-size:15px; }
.info-block a:hover{ color:var(--verdigris); }

.faq-item{ padding:22px 0; border-bottom:1px solid var(--line); }
.faq-item h4{ font-size:1.02rem; font-weight:600; margin-bottom:8px; }
.faq-item p{ color:var(--muted); font-size:14.5px; max-width:60ch; }

/* Footer */
.site-footer{
  border-top:1px solid var(--line);
  padding:56px var(--pad) 40px;
  margin-top:60px;
}
.footer-top{
  max-width:var(--max);
  margin:0 auto;
  display:flex;
  justify-content:space-between;
  gap:40px;
  flex-wrap:wrap;
  padding-bottom:36px;
}
.footer-logo{ font-family:var(--serif); font-size:22px; max-width:280px; }
.footer-logo span{ color:var(--verdigris); }
.footer-cols{ display:flex; gap:60px; flex-wrap:wrap; }
.footer-col h5{
  font-family:var(--mono);
  font-size:11px;
  letter-spacing:.08em;
  text-transform:uppercase;
  color:var(--muted);
  margin-bottom:14px;
}
.footer-col a, .footer-col p{ display:block; font-size:14px; margin-bottom:10px; color:var(--ink-soft); }
.footer-col a:hover{ color:var(--verdigris); }
.footer-bottom{
  max-width:var(--max);
  margin:0 auto;
  border-top:1px solid var(--line);
  padding-top:24px;
  display:flex;
  justify-content:space-between;
  font-size:12.5px;
  color:var(--muted);
  flex-wrap:wrap;
  gap:10px;
}

/* Page hero (inner pages) */
.page-hero{
  padding:clamp(50px,9vh,90px) var(--pad) 40px;
  max-width:var(--max);
  margin:0 auto;
}
.page-hero h1{ font-size:clamp(2.2rem,5vw,3.6rem); max-width:18ch; margin-top:18px; }
.page-hero p.lead{ margin-top:18px; max-width:56ch; color:var(--muted); font-size:16px; }

/* Alternating service detail rows */
.service-detail{
  display:grid;
  grid-template-columns:0.9fr 1.1fr;
  gap:50px;
  padding:56px 0;
  border-top:1px solid var(--line);
  align-items:start;
}
.service-detail:last-child{ border-bottom:1px solid var(--line); }
.service-detail .sd-index{ font-family:var(--mono); color:var(--verdigris); font-size:13px; }
.service-detail h2{ font-size:clamp(1.6rem,3vw,2.2rem); margin-top:14px; }
.service-detail .sd-desc{ color:var(--muted); margin-top:16px; max-width:48ch; }
.includes{ margin-top:8px; }
.includes li{
  padding:12px 0;
  border-top:1px solid var(--line);
  display:flex;
  justify-content:space-between;
  font-size:14.5px;
  gap:20px;
}
.includes li:last-child{ border-bottom:1px solid var(--line); }
.includes li .tag-mini{ font-family:var(--mono); font-size:11px; color:var(--muted); white-space:nowrap; }
@media (max-width:800px){
  .service-detail{ grid-template-columns:1fr; }
}