/* Avid Inventions — v4
   Modern product engineering studio aesthetic.
   Monochrome base with subtle tech accent; mobile-first; accessible.
*/

:root{
  --bg: #ffffff;
  --fg: #0b0b0b;
  --muted: #5c5c5c;
  --line: rgba(11,11,11,.12);
  --soft: rgba(11,11,11,.06);
  --accent: #3f5e76; /* slate blue-gray accent */
  --accent2: #7aa6c2;
  --accent-rgb: 63, 94, 118;
  --accent2-rgb: 122, 166, 194;
  --radius: 18px;
  --radius-lg: 26px;
  --shadow: 0 20px 60px rgba(0,0,0,.08);
  --shadow2: 0 10px 26px rgba(0,0,0,.08);
  --max: 1160px;
  --pad: clamp(18px, 2.2vw, 28px);
  --h1: clamp(34px, 4.6vw, 60px);
  --h2: clamp(24px, 3.2vw, 40px);
  --h3: clamp(18px, 2vw, 24px);
  --p: clamp(15px, 1.25vw, 18px);
  --mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  --sans: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
}

*{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
body{
  margin: 0;
  font-family: var(--sans);
  color: var(--fg);
  background: var(--bg);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img{ max-width: 100%; display:block; }
a{ color: inherit; text-decoration: none; }
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible{
  outline: 3px solid rgba(var(--accent-rgb), .35);
  outline-offset: 2px;
  border-radius: 10px;
}

.container{ max-width: var(--max); width: calc(100% - 2*var(--pad)); margin: 0 auto; }
.section{ padding: clamp(64px, 7vw, 100px) 0; }
.section-tight{ padding: clamp(52px, 6vw, 84px) 0; }
.kicker{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--muted);
}
.kicker::before{
  content:"";
  width: 26px; height: 1px;
  background: rgba(11,11,11,.35);
}

h1,h2,h3{ margin: 0 0 10px 0; line-height: 1.12; letter-spacing: -0.02em; }
h1{ font-size: var(--h1); }
h2{ font-size: var(--h2); }
h3{ font-size: var(--h3); }
p{ margin: 0 0 14px 0; font-size: var(--p); color: var(--muted); }
small{ color: var(--muted); }

.badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255,255,255,.7);
  box-shadow: 0 6px 18px rgba(0,0,0,.05);
  font-size: 13px;
  color: rgba(11,11,11,.8);
}
.dot{ width:8px; height:8px; border-radius:50%; background: var(--accent); box-shadow: 0 0 0 6px rgba(var(--accent-rgb), .12); }

.hr{ height:1px; background: var(--line); margin: 18px 0; }

/* Header */
.header{
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255,255,255,.78);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(11,11,11,.08);
}
.nav{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding: 14px 0;
  gap: 16px;
}
.brand{
  display:flex; align-items:center; gap:12px;
  min-width: 220px;
}
.brand img{ width: 38px; height: 38px; }
.brand span{ font-weight: 750; letter-spacing: -0.02em; }
.navlinks{
  display:flex;
  align-items:center;
  gap: 18px;
}
.navlinks a{
  color: rgba(11,11,11,.78);
  font-weight: 600;
  font-size: 14px;
  padding: 10px 10px;
  border-radius: 12px;
}
.navlinks a:hover{ background: rgba(11,11,11,.04); }
.navlinks a[aria-current="page"]{ color: var(--fg); background: rgba(11,11,11,.06); }

.actions{ display:flex; align-items:center; gap: 10px; }
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap: 10px;
  border-radius: 14px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--fg);
  font-weight: 700;
  font-size: 14px;
  box-shadow: 0 10px 24px rgba(0,0,0,.06);
}
.btn:hover{ transform: translateY(-1px); box-shadow: 0 14px 28px rgba(0,0,0,.08); }
.btn:active{ transform: translateY(0); box-shadow: 0 10px 24px rgba(0,0,0,.06); }
.btn.primary{
  border-color: rgba(var(--accent-rgb), .28);
  background: linear-gradient(135deg, rgba(var(--accent-rgb), .12), rgba(var(--accent2-rgb), .10));
}
.btn.black{
  background: var(--fg);
  color: #fff;
  border-color: rgba(11,11,11,.65);
}
.icon{
  width: 16px; height: 16px; display:inline-block;
}

/* Mobile nav */
.burger{ display:none; }
.drawer{
  display:none;
  padding: 10px 0 16px;
}
.drawer a{ display:block; padding: 12px 6px; font-weight: 650; color: rgba(11,11,11,.82); border-radius: 12px; }
.drawer a:hover{ background: rgba(11,11,11,.04); }


/* Backdrop filter fallbacks */
@supports not ((backdrop-filter: blur(12px)) or (-webkit-backdrop-filter: blur(12px))){
  .header{ background: #ffffff; }
  .lightbox{ background: rgba(255,255,255,.98); }
}

/* Hero */
.hero{
  padding: clamp(70px, 8vw, 110px) 0 0;
}
.heroGrid{
  display:grid;
  grid-template-columns: 1.1fr .9fr;
  gap: clamp(18px, 3vw, 40px);
  align-items: start;
}
.hero h1{
  max-width: 18ch;
}
.subhead{
  font-size: clamp(16px, 1.4vw, 19px);
  color: rgba(11,11,11,.68);
  max-width: 60ch;
}
.heroCtas{
  display:flex;
  flex-wrap:wrap;
  gap: 12px;
  margin-top: 18px;
}
.pills{
  margin-top: 18px;
  display:flex;
  flex-wrap:wrap;
  gap: 10px;
}

.heroCard{
  border: 1px solid var(--line);
  background: linear-gradient(180deg, #fff, rgba(11,11,11,.02));
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  overflow:hidden;
}
.heroCardTop{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding: 16px 18px;
  border-bottom: 1px solid rgba(11,11,11,.08);
}
.heroCardTop .meta{
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: rgba(11,11,11,.56);
}
.heroArt{
  padding: 14px 14px 18px;
}
.heroArt svg{
  width: 100%;
  height: auto;
  color: rgba(11,11,11,.92);
}
.heroArt .hint{
  display:flex;
  justify-content:space-between;
  gap: 12px;
  padding: 12px 4px 0;
  color: rgba(11,11,11,.55);
  font-family: var(--mono);
  font-size: 12px;
}
.gradientLine{
  height: 1px;
  background: linear-gradient(90deg, rgba(11,11,11,0), rgba(11,11,11,.2), rgba(var(--accent-rgb), .35), rgba(11,11,11,.2), rgba(11,11,11,0));
  margin-top: clamp(36px, 6vw, 70px);
}

/* Bento / cards */
.grid2{ display:grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.grid3{ display:grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.grid4{ display:grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }

.card{
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px;
  background: #fff;
  box-shadow: 0 10px 24px rgba(0,0,0,.05);
}
.card.soft{ background: linear-gradient(180deg, #fff, rgba(11,11,11,.02)); }
.card h3{ margin-bottom: 8px; }
.card .meta{ font-family: var(--mono); font-size: 12px; color: rgba(11,11,11,.55); letter-spacing:.10em; text-transform: uppercase; }
.card .row{ display:flex; align-items:center; justify-content:space-between; gap: 12px; margin-bottom: 8px; }
.card .row .chip{
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .10em;
  text-transform: uppercase;
  color: rgba(11,11,11,.60);
  border: 1px solid rgba(11,11,11,.10);
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(11,11,11,.02);
}

.sketchFrame{
  border: 1px solid rgba(11,11,11,.10);
  border-radius: 18px;
  background: radial-gradient(circle at 30% 20%, rgba(var(--accent-rgb), .09), transparent 40%),
              radial-gradient(circle at 80% 30%, rgba(var(--accent2-rgb), .06), transparent 35%),
              #fff;
  padding: 12px;
  overflow:hidden;
}
.sketchFrame svg{
  width: 100%;
  height: auto;
  color: rgba(11,11,11,.92);
}

/* Process */
.steps{
  display:grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 10px;
}
.step{
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 14px;
  background: #fff;
  min-height: 140px;
}
.step b{
  display:block;
  font-family: var(--mono);
  letter-spacing: .10em;
  font-size: 11px;
  color: rgba(11,11,11,.62);
  text-transform: uppercase;
  margin-bottom: 8px;
}
.step h4{ margin: 0 0 8px 0; font-size: 15px; letter-spacing: -0.01em; }
.step p{ margin: 0; font-size: 14px; }

.split{
  display:grid;
  grid-template-columns: .95fr 1.05fr;
  gap: 18px;
  align-items: start;
}

/* Work cards */
.workCard{
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: #fff;
  overflow:hidden;
  box-shadow: var(--shadow2);
}
.workCard .top{
  padding: 18px;
  border-bottom: 1px solid rgba(11,11,11,.08);
  display:flex;
  align-items:flex-start;
  justify-content:space-between;
  gap: 14px;
}
.workCard .top h3{ margin: 0 0 6px 0; }
.workCard .top .tags{
  display:flex; gap: 8px; flex-wrap:wrap; justify-content:flex-end;
}
.tag{
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .08em;
  text-transform: uppercase;
  padding: 6px 10px;
  border: 1px solid rgba(11,11,11,.10);
  background: rgba(11,11,11,.02);
  border-radius: 999px;
  color: rgba(11,11,11,.65);
}
.workCard .art{ padding: 14px 14px 18px; }
.workCard .art .sketchFrame{ border-radius: 22px; }
.workCard .bottom{
  padding: 0 18px 18px;
}
.workCard .bottom ul{
  margin: 10px 0 0;
  padding-left: 18px;
  color: rgba(11,11,11,.72);
}
.workCard .bottom li{ margin: 8px 0; }


/* Clean lists inside cards */
.listClean{ margin: 12px 0 0; padding-left: 18px; color: rgba(11,11,11,.72); }
.listClean li{ margin: 8px 0; }


/* Lists */
.list{ margin: 12px 0 0; padding-left: 18px; color: rgba(11,11,11,.72); }
.list li{ margin: 8px 0; }

/* Forms */
form{ display:grid; gap: 12px; }
.field{
  display:grid;
  gap: 8px;
}
label{ font-weight: 700; font-size: 13px; color: rgba(11,11,11,.80); }
input, textarea{
  padding: 12px 12px;
  border-radius: 14px;
  border: 1px solid rgba(11,11,11,.16);
  background: #fff;
  font: inherit;
}
textarea{ min-height: 140px; resize: vertical; }
.help{ font-size: 12px; color: rgba(11,11,11,.60); }

/* Footer */
.footer{
  border-top: 1px solid rgba(11,11,11,.08);
  padding: 34px 0;
}
.footerGrid{
  display:grid;
  grid-template-columns: 1.2fr .8fr;
  gap: 16px;
  align-items:start;
}
.footerLinks{
  display:grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}
.footerLinks a{
  color: rgba(11,11,11,.70);
  padding: 8px 10px;
  border-radius: 12px;
}
.footerLinks a:hover{ background: rgba(11,11,11,.04); }

/* Lightbox */
.lightbox{
  position: fixed;
  inset: 0;
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  display:none;
  align-items:center;
  justify-content:center;
  padding: 22px;
  z-index: 100;
}
.lightbox.open{ display:flex; }
.lightboxInner{
  width: min(980px, 100%);
  border: 1px solid rgba(11,11,11,.12);
  border-radius: 22px;
  background: #fff;
  box-shadow: var(--shadow);
  overflow:hidden;
}
.lightboxTop{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding: 14px 16px;
  border-bottom: 1px solid rgba(11,11,11,.08);
}
.lightboxTop .title{
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .10em;
  text-transform: uppercase;
  color: rgba(11,11,11,.62);
}
.lightboxClose{
  border: 1px solid rgba(11,11,11,.12);
  background: #fff;
  border-radius: 14px;
  padding: 10px 12px;
  font-weight: 800;
  cursor:pointer;
}
.lightboxArt{ padding: 14px; }
.lightboxArt svg{ width: 100%; height:auto; color: rgba(11,11,11,.92); }

/* Sketch draw animation */
@media (prefers-reduced-motion: no-preference){
  .sketchDraw path, .sketchDraw rect, .sketchDraw line, .sketchDraw polyline, .sketchDraw polygon, .sketchDraw circle, .sketchDraw ellipse{
    stroke-dasharray: 1200;
    stroke-dashoffset: 1200;
    animation: draw 1.6s ease forwards;
  }
  .sketchDraw path:nth-child(2){ animation-delay: .08s; }
  .sketchDraw path:nth-child(3){ animation-delay: .14s; }
  .sketchDraw path:nth-child(4){ animation-delay: .20s; }
  @keyframes draw{ to{ stroke-dashoffset: 0; } }
}

/* Responsive */
@media (max-width: 980px){
  .heroGrid{ grid-template-columns: 1fr; }
  .split{ grid-template-columns: 1fr; }
  .steps{ grid-template-columns: repeat(2, 1fr); }
  .grid3{ grid-template-columns: 1fr; }
  .grid4{ grid-template-columns: repeat(2, 1fr); }
  .footerGrid{ grid-template-columns: 1fr; }
}
@media (max-width: 760px){
  .navlinks{ display:none; }
  .burger{ display:inline-flex; }
  .drawer{ display:block; }
  .grid2{ grid-template-columns: 1fr; }
  .grid4{ grid-template-columns: 1fr; }
  .brand{ min-width: unset; }
}

/* Utility */
.m0{ margin:0; }
.center{ text-align:center; }
.lead{ color: rgba(11,11,11,.70); }
.callout{
  border-left: 3px solid rgba(var(--accent-rgb), .45);
  padding-left: 14px;
  color: rgba(11,11,11,.70);
}


/* Flex gap fallback (older Safari) */
@supports not (gap: 12px){
  .nav, .navlinks, .actions, .heroCtas, .pills, .card .row, .workCard .top .tags{
    gap: 0;
  }
  .navlinks > a{ margin-right: 12px; }
  .actions > *{ margin-left: 10px; }
  .heroCtas > *, .pills > *{ margin: 0 12px 12px 0; }
  .card .row > *{ margin-right: 12px; }
  .workCard .top .tags > *{ margin-left: 8px; margin-top: 8px; }
}