/* ==========================================================================
   howtoai — stylesheet
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Bricolage+Grotesque:opsz,wght@12..96,400..800&family=Instrument+Serif:ital@0;1&family=Inter:wght@400;500;600&display=swap');

:root{
  --bg: #F6F4EF;
  --bg-soft: #EFEBE2;
  --ink: #14120E;
  --ink-soft: rgba(20,18,14,0.62);
  --ink-faint: rgba(20,18,14,0.38);
  --line: rgba(20,18,14,0.12);
  --accent: #5B3DFF;
  --accent-soft: #EDE7FF;
  --paper: #FFFDF9;
  --radius: 22px;
  --container: 1400px;
  --pad: clamp(20px, 4vw, 64px);
  --ease: cubic-bezier(.16,.84,.32,1);
}

*, *::before, *::after{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }

body{
  margin:0;
  background: var(--bg);
  color: var(--ink);
  font-family: 'Inter', system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img{ max-width:100%; display:block; }
a{ color: inherit; text-decoration:none; }
button{ font-family: inherit; cursor:pointer; }
ul{ margin:0; padding:0; list-style:none; }

h1,h2,h3,h4{
  font-family: 'Bricolage Grotesque', sans-serif;
  font-weight: 700;
  line-height: 1.02;
  letter-spacing: -0.02em;
  margin: 0;
}

em, .serif{
  font-family: 'Instrument Serif', serif;
  font-style: italic;
  font-weight: 400;
  letter-spacing: 0;
}

.eyebrow{
  display:flex;
  align-items:center;
  gap:10px;
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-soft);
}
.eyebrow::before{
  content:"";
  width:7px; height:7px;
  border-radius:50%;
  background: var(--accent);
  flex: none;
}

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

.section{ padding: clamp(64px, 10vw, 140px) 0; }
.section-tight{ padding: clamp(40px, 6vw, 80px) 0; }

/* ---------- preloader ---------- */
#preloader{
  position:fixed; inset:0; z-index:999;
  background: var(--bg);
  display:flex; align-items:center; justify-content:center;
  transition: transform .9s var(--ease), opacity .7s ease;
}
#preloader .pl-word{
  display:flex;
  align-items:center;
  justify-content:center;
}
#preloader .pl-word img{
  width: clamp(180px, 26vw, 340px);
  height:auto;
  opacity:0;
  transform: scale(0.82);
  animation: plLogoIn 1s var(--ease) forwards;
}
@keyframes plLogoIn{ to{ opacity:1; transform:scale(1); } }
#preloader .pl-bar{
  position:absolute; bottom: 48px; left:50%; transform:translateX(-50%);
  width: min(280px, 60vw); height:1px; background: var(--line);
  overflow:hidden;
}
#preloader .pl-bar i{
  position:absolute; inset:0; background: var(--ink);
  transform-origin:left; transform:scaleX(0);
  animation: plBar 1.4s var(--ease) .2s forwards;
}
@keyframes plIn{ to{ opacity:1; transform:translateY(0) rotate(0);} }
@keyframes plBar{ to{ transform:scaleX(1);} }

body.is-loaded #preloader{
  transform: translateY(-100%);
  opacity: 0.6;
  pointer-events:none;
}

/* ---------- nav ---------- */
.nav{
  position:fixed; top:0; left:0; right:0; z-index:100;
  display:flex; align-items:center; justify-content:space-between;
  padding: 22px var(--pad);
  mix-blend-mode: difference;
  color: #fff;
  transition: background .35s ease, box-shadow .35s ease;
}
.nav *{ color:#fff; }
.nav.scrolled{
  mix-blend-mode: normal;
  background: rgba(246,244,239,0.86);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  box-shadow: 0 1px 0 var(--line);
  color: var(--ink);
}
.nav.scrolled *{ color: var(--ink); }
.nav.scrolled .dot{ background: var(--accent); }
.nav.scrolled .nav-logo img{ filter: brightness(0); }
body.menu-open .nav.scrolled .nav-logo img{ filter: none; }
.nav-logo{
  display:flex; align-items:center; gap:9px;
}
.nav-logo .dot{ width:7px; height:7px; border-radius:50%; background:currentColor; flex:none; }
.nav-logo img{ height:16px; width:auto; display:block; }
.nav-links{ display:flex; align-items:center; gap: clamp(18px, 3vw, 42px); }
.nav-links a{
  font-size: 13px; font-weight:600; text-transform:uppercase; letter-spacing:.12em;
  position:relative; padding-bottom:3px;
}
.nav-links a::after{
  content:""; position:absolute; left:0; bottom:0; width:100%; height:1px;
  background:currentColor; transform:scaleX(0); transform-origin:right; transition: transform .4s var(--ease);
}
.nav-links a:hover::after, .nav-links a.active::after{ transform:scaleX(1); transform-origin:left; }
.nav-links a.active{ opacity: 1; }
.nav-cta{
  border:1px solid currentColor; border-radius: 999px;
  padding: 8px 18px; font-size:12.5px; font-weight:600; letter-spacing:.1em; text-transform:uppercase;
}
.nav-toggle{
  display:none;
  flex-direction:column; justify-content:center; align-items:center; gap:5px;
  width:38px; height:38px; border:none; background:none; padding:0; flex:none;
  position:relative; z-index:210;
}
.nav-toggle span{
  width:22px; height:2px; background:currentColor; display:block; border-radius:2px;
  transition: transform .35s var(--ease), opacity .25s ease;
}
body.menu-open .nav-toggle span:nth-child(1){ transform: translateY(7px) rotate(45deg); }
body.menu-open .nav-toggle span:nth-child(2){ opacity:0; }
body.menu-open .nav-toggle span:nth-child(3){ transform: translateY(-7px) rotate(-45deg); }
body.menu-open .nav-toggle{ color:#fff; mix-blend-mode:normal; }

.mobile-menu{
  position:fixed; inset:0; z-index:200;
  background: var(--ink); color:#fff;
  display:flex; flex-direction:column; justify-content:center;
  padding: var(--pad);
  transform: translateY(-100%);
  transition: transform .55s var(--ease);
}
.mobile-menu.open{ transform: translateY(0); }
.mobile-menu a{
  display:block;
  font-family:'Bricolage Grotesque', sans-serif;
  font-weight:700; letter-spacing:-0.01em;
  font-size: clamp(30px, 9vw, 46px);
  color:#fff;
  padding: 16px 0;
  border-bottom: 1px solid rgba(255,255,255,0.14);
}
.mobile-menu .mm-cta{
  margin-top:28px; display:inline-flex; align-self:flex-start;
  border:1px solid #fff; border-radius:999px; padding:14px 26px;
  font-size:14px; font-weight:600; letter-spacing:.08em; text-transform:uppercase;
  border-bottom:none;
}
.mobile-menu .mm-foot{
  margin-top:40px; font-size:13px; color:rgba(255,255,255,0.55);
}

/* ---------- hero ---------- */
.hero{
  position:relative;
  min-height: 100svh;
  display:flex; flex-direction:column; justify-content:flex-end;
  padding: 140px var(--pad) 64px;
  overflow:hidden;
}
#hero-canvas{
  position:absolute; inset:0; z-index:0;
  width:100%; height:100%;
  opacity:0;
  transition: opacity 1.6s ease .3s;
}
body.is-loaded #hero-canvas{ opacity:1; }
.hero-inner{ position:relative; z-index:2; }
.hero-tag{ margin-bottom: 22px; }
.hero h1{
  font-size: clamp(40px, 8vw, 118px);
  max-width: 18ch;
}
.hero h1 .line{ overflow:hidden; display:block; }
.hero h1 span{ display:block; transform: translateY(110%); transition: transform 1s var(--ease); }
body.is-loaded .hero h1 span{ transform: translateY(0); }
.hero h1 span:nth-child(1){ transition-delay: .05s; }
.hero h1 span:nth-child(2){ transition-delay: .15s; }
.hero-foot{
  display:flex; justify-content:space-between; align-items:flex-end; gap: 24px;
  margin-top: 44px; padding-top: 28px; border-top: 1px solid var(--line);
}
.hero-desc{ max-width: 40ch; color: var(--ink-soft); font-size: 16px; }
.scroll-cue{
  display:flex; align-items:center; gap:10px; font-size:12.5px; font-weight:600;
  letter-spacing:.1em; text-transform:uppercase; color:var(--ink-soft);
  writing-mode: vertical-rl;
}
.scroll-cue i{
  width:1px; height:44px; background: var(--ink-faint); position:relative; overflow:hidden;
}
.scroll-cue i::after{
  content:""; position:absolute; left:0; top:-100%; width:100%; height:100%; background:var(--ink);
  animation: scrollLine 2.2s ease-in-out infinite;
}
@keyframes scrollLine{ 0%{top:-100%;} 60%{top:100%;} 100%{top:100%;} }

/* ---------- marquee ---------- */
.marquee{
  border-top:1px solid var(--line); border-bottom:1px solid var(--line);
  padding: 22px 0; overflow:hidden; white-space:nowrap;
}
.marquee-track{ display:inline-flex; gap:64px; animation: marquee 26s linear infinite; }
.marquee-track span{
  font-family:'Bricolage Grotesque', sans-serif; font-weight:700; font-size: clamp(18px,2.6vw,30px);
  color: var(--ink-faint); display:inline-flex; align-items:center; gap:64px;
}
.marquee-track span em{ color: var(--ink); }
@keyframes marquee{ from{transform:translateX(0);} to{transform:translateX(-50%);} }

/* ---------- split / manifesto ---------- */
.split{
  display:grid; grid-template-columns: 1fr 1fr; gap: clamp(28px,6vw,90px); align-items:center;
}
.split.reverse{ grid-template-columns: 1fr 1fr; }
.split.reverse .split-media{ order:2; }
.split-media{ position:relative; border-radius: var(--radius); overflow:hidden; aspect-ratio: 4/5; }
.split-media img{ width:100%; height:100%; object-fit:cover; }
.tilt{ transform-style:preserve-3d; will-change: transform; transition: transform .3s var(--ease); }
.split-label{
  position:absolute; left:18px; bottom:18px; background: var(--paper);
  padding:8px 14px; border-radius:999px; font-size:12px; font-weight:600; letter-spacing:.06em; text-transform:uppercase;
}
.big-stat{ font-family:'Bricolage Grotesque',sans-serif; font-size: clamp(48px,6vw,72px); font-weight:800; }

/* ---------- project rows ---------- */
.proj-row{
  display:grid; grid-template-columns: 0.9fr 1.1fr; gap: clamp(24px,5vw,70px);
  align-items:center; padding: clamp(40px,6vw,72px) 0; border-top:1px solid var(--line);
}
.proj-row:last-child{ border-bottom:1px solid var(--line); }
.proj-row:nth-of-type(even){ grid-template-columns: 1.1fr 0.9fr; }
.proj-row:nth-of-type(even) .proj-media{ order:2; }
.proj-media{ position:relative; border-radius: var(--radius); overflow:hidden; aspect-ratio: 5/4; }
.proj-media img{ width:100%; height:100%; object-fit:cover; transition: transform .8s var(--ease); }
.proj-media:hover img{ transform: scale(1.06); }
.proj-index{ font-size:13px; color:var(--ink-faint); font-weight:600; letter-spacing:.08em; margin-bottom:14px; display:block; }
.proj-title{ font-size: clamp(28px,4vw,48px); margin-bottom:16px; }
.proj-desc{ color:var(--ink-soft); max-width:46ch; margin-bottom:22px; }
.proj-tags{ display:flex; flex-wrap:wrap; gap:8px; margin-bottom:22px; }
.tag{
  font-size:12px; font-weight:600; letter-spacing:.06em; text-transform:uppercase;
  padding:6px 12px; border-radius:999px; background: var(--accent-soft); color: var(--accent);
}
.link-arrow{
  display:inline-flex; align-items:center; gap:10px; font-weight:600; font-size:14px;
  letter-spacing:.02em; padding-bottom:4px; border-bottom:1px solid var(--ink);
}
.link-arrow svg{ transition: transform .3s var(--ease); }
.link-arrow:hover svg{ transform: translateX(6px); }

/* ---------- services ---------- */
.services-grid{ display:grid; grid-template-columns: repeat(4, 1fr); gap:1px; background: var(--line); border-radius: var(--radius); overflow:hidden; }
.service-card{ background: var(--paper); padding: 34px 26px; min-height: 260px; display:flex; flex-direction:column; justify-content:space-between; }
.service-num{ font-size:13px; color:var(--ink-faint); font-weight:600; }
.service-card h3{ font-size:22px; margin: 30px 0 10px; }
.service-card p{ color:var(--ink-soft); font-size:14.5px; margin:0; }

/* ---------- stats ---------- */
.stats-grid{ display:grid; grid-template-columns: repeat(4,1fr); gap: 28px; }
.stat-item{ border-top:1px solid var(--line); padding-top:18px; }
.stat-num{ font-family:'Bricolage Grotesque',sans-serif; font-weight:800; font-size: clamp(34px,4.4vw,56px); }
.stat-label{ color:var(--ink-soft); font-size:14px; margin-top:6px; }

/* ---------- cta ---------- */
.cta{
  background: var(--ink); color: var(--paper); border-radius: var(--radius);
  padding: clamp(48px,8vw,100px); display:flex; flex-wrap:wrap; gap:32px;
  align-items:center; justify-content:space-between;
}
.cta h2{ font-size: clamp(30px,5vw,58px); max-width: 14ch; color:#fff; }
.btn{
  display:inline-flex; align-items:center; gap:10px;
  background: var(--paper); color: var(--ink); border:none; border-radius:999px;
  padding: 16px 28px; font-weight:600; font-size:14.5px; letter-spacing:.02em;
  transition: transform .3s var(--ease), background .3s;
}
.btn:hover{ transform: translateY(-3px); }
.btn.dark{ background: var(--ink); color:#fff; }
.btn.outline{ background:transparent; color:var(--ink); border:1px solid var(--ink); }

/* ---------- footer ---------- */
footer{ border-top:1px solid var(--line); padding: 70px 0 34px; }
.foot-top{ display:grid; grid-template-columns: 1.4fr 0.8fr 0.8fr 1fr; gap: 32px; margin-bottom: 60px; }
.foot-brand h3{ margin-bottom:18px; }
.foot-brand h3 img{ height: clamp(26px,3vw,36px); width:auto; display:block; }
.foot-brand p{ color:var(--ink-soft); max-width:32ch; }
.foot-col h4{ font-size:12.5px; text-transform:uppercase; letter-spacing:.1em; color:var(--ink-faint); margin-bottom:16px; font-family:'Inter'; font-weight:600; }
.foot-col a, .foot-col p{ display:block; color:var(--ink-soft); margin-bottom:10px; font-size:14.5px; }
.foot-col a:hover{ color:var(--ink); }
.foot-bottom{ display:flex; justify-content:space-between; flex-wrap:wrap; gap:12px; padding-top:24px; border-top:1px solid var(--line); font-size:13px; color:var(--ink-faint); }

/* ---------- moodboard (drag canvas) ---------- */
.moodboard{
  position:relative;
  height: 88vh;
  overflow:hidden;
  background: var(--bg-soft);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  cursor: grab;
  user-select:none;
}
.moodboard.is-dragging{ cursor: grabbing; }
.moodboard-hint{
  position:absolute; top:22px; right:var(--pad); z-index:5;
  font-size:12px; font-weight:600; letter-spacing:.1em; text-transform:uppercase; color:var(--ink-faint);
  pointer-events:none;
}
.moodboard-hint-left{
  position:absolute; top:22px; left:var(--pad); z-index:5;
  font-size:12px; font-weight:600; letter-spacing:.1em; text-transform:uppercase; color:var(--ink-faint);
  pointer-events:none;
}
.moodboard-canvas{
  position:absolute; top:0; left:0;
  width: 2500px; height: 1500px;
  will-change: transform;
}
.mb-tile{
  position:absolute;
  border-radius: 16px;
  overflow:hidden;
  box-shadow: 0 20px 50px rgba(20,18,14,0.14);
  transition: transform .35s var(--ease);
}
.mb-tile{ background:#000; }
.mb-tile .mb-stack{ position:relative; width:100%; height:100%; }
.mb-tile img{
  position:absolute; inset:0; width:100%; height:100%; object-fit:cover; pointer-events:none;
  opacity:0; transition: opacity .12s linear;
}
.mb-tile img.is-active{ opacity:1; }
.mb-tile:hover{ transform: scale(1.035) rotate(0deg) !important; z-index:3; }
.moodboard-label{
  position:absolute; left:50%; bottom:26px; transform:translateX(-50%);
  z-index:6; text-align:center; pointer-events:none;
  opacity:0; transition: opacity .3s ease;
}
.moodboard-label.show{ opacity:1; }
.moodboard-label .name{
  font-family:'Bricolage Grotesque', sans-serif; font-weight:800;
  font-size: clamp(24px,3.4vw,40px); letter-spacing:-0.01em;
}
.moodboard-label .cat{
  font-size:12px; font-weight:600; letter-spacing:.14em; text-transform:uppercase; color:var(--ink-soft);
  margin-top:6px;
}
.moodboard-center{
  position:absolute; left:50%; top:14px; transform:translateX(-50%);
  z-index:5; text-align:center; pointer-events:none;
}
.moodboard-center span{
  font-size:12.5px; font-weight:600; letter-spacing:.14em; text-transform:uppercase; color:var(--ink-faint);
}

/* ---------- reveal ---------- */
.reveal{ opacity:0; transform: translateY(28px); transition: opacity .9s var(--ease), transform .9s var(--ease); }
.reveal.in-view{ opacity:1; transform: translateY(0); }

/* ---------- page header (inner pages) ---------- */
.page-head{ padding: 150px var(--pad) 50px; max-width: var(--container); margin:0 auto; }
.page-head .eyebrow{ margin-bottom:18px; }
.page-head h1{ font-size: clamp(36px,6.4vw,84px); max-width: 20ch; }
.page-head p{ margin-top:22px; max-width:56ch; color:var(--ink-soft); font-size:17px; }

/* ---------- projects grid page ---------- */
.pgrid{ display:grid; grid-template-columns: repeat(2,1fr); gap: 28px; }
.pgrid .pcard{ position:relative; border-radius: var(--radius); overflow:hidden; aspect-ratio: 4/3; }
.pgrid .pcard img{ width:100%; height:100%; object-fit:cover; transition: transform .8s var(--ease); }
.pgrid .pcard:hover img{ transform: scale(1.06); }
.pcard-info{
  position:absolute; inset:auto 0 0 0; padding: 26px; color:#fff;
  background: linear-gradient(0deg, rgba(0,0,0,.62), rgba(0,0,0,0) 70%);
}
.pcard-info .eyebrow{ color: rgba(255,255,255,.75); }
.pcard-info .eyebrow::before{ background:#fff; }
.pcard-info h3{ color:#fff; font-size: clamp(22px,2.6vw,30px); margin-top:8px; }

/* ---------- gallery (case study) ---------- */
.gallery{ display:grid; grid-template-columns: repeat(3, 1fr); gap:18px; }
.gallery a{ border-radius: 16px; overflow:hidden; aspect-ratio: 3/4; display:block; }
.gallery img{ width:100%; height:100%; object-fit:cover; transition: transform .6s var(--ease); }
.gallery a:hover img{ transform: scale(1.05); }

/* ---------- process ---------- */
.process{ display:grid; grid-template-columns: repeat(4,1fr); gap:1px; background:var(--line); border-radius:var(--radius); overflow:hidden; }
.process-step{ background:var(--paper); padding: 30px 24px; min-height:220px; }
.process-step span{ font-family:'Bricolage Grotesque',sans-serif; font-size:34px; font-weight:800; color: var(--accent); }
.process-step h3{ font-size:19px; margin:22px 0 8px; }
.process-step p{ color:var(--ink-soft); font-size:14px; margin:0; }

/* ---------- contact ---------- */
.contact-grid{ display:grid; grid-template-columns: 1fr 1fr; gap: clamp(28px,6vw,90px); }
.contact-card{ background: var(--paper); border:1px solid var(--line); border-radius: var(--radius); padding: 34px; }
.contact-card h4{ font-size:13px; text-transform:uppercase; letter-spacing:.1em; color:var(--ink-faint); margin-bottom:14px; }
.contact-card a.big{ font-family:'Bricolage Grotesque',sans-serif; font-size: clamp(22px,3vw,32px); font-weight:700; }
.field{ margin-bottom:18px; }
.field label{ display:block; font-size:12.5px; font-weight:600; letter-spacing:.06em; text-transform:uppercase; color:var(--ink-faint); margin-bottom:8px; }
.field input, .field textarea{
  width:100%; border:1px solid var(--line); background:var(--paper); border-radius:12px;
  padding: 14px 16px; font-family:inherit; font-size:15px; color:var(--ink); resize:vertical;
}
.field input:focus, .field textarea:focus{ outline:none; border-color: var(--accent); }

/* ---------- responsive ---------- */
@media (max-width: 980px){
  .moodboard{ height:70vh; }
  .nav-links{ display:none; }
  .nav-toggle{ display:flex; }
  .split, .split.reverse{ grid-template-columns: 1fr; }
  .split.reverse .split-media{ order:0; }
  .proj-row, .proj-row:nth-of-type(even){ grid-template-columns: 1fr; }
  .proj-row:nth-of-type(even) .proj-media{ order:0; }
  .services-grid, .process{ grid-template-columns: repeat(2,1fr); }
  .stats-grid{ grid-template-columns: repeat(2,1fr); }
  .foot-top{ grid-template-columns: 1fr 1fr; }
  .pgrid{ grid-template-columns: 1fr; }
  .gallery{ grid-template-columns: repeat(2,1fr); }
  .contact-grid{ grid-template-columns: 1fr; }
}
@media (max-width: 560px){
  .services-grid, .process, .stats-grid{ grid-template-columns: 1fr; }
  .gallery{ grid-template-columns: 1fr 1fr; }
  .cta{ flex-direction:column; align-items:flex-start; }
}