/* ===== Tokens ===== */
:root{
  --charcoal:#1A1816;
  --charcoal-soft:#242019;
  --plaster:#EDE7D9;
  --plaster-light:#F6F2E8;
  --brass:#B8863B;
  --brass-light:#D9AC5F;
  --rust:#8C4A2F;
  --steel:#4C5B66;
  --ink:#2A2521;
  --line:rgba(26,24,22,.14);
  --line-light:rgba(246,242,232,.16);
  --radius:3px;
  --font:'Vazirmatn', sans-serif;
  --maxw:1120px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  background:var(--plaster-light);
  color:var(--ink);
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}

@media (prefers-reduced-motion: reduce){
  *{animation-duration:.01ms !important;transition-duration:.01ms !important}
}

/* subtle blueprint grid backdrop, fixed behind everything */
.grid-backdrop{
  position:fixed;inset:0;z-index:-1;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size:40px 40px;
  opacity:.35;
  mask-image:radial-gradient(ellipse 80% 60% at 50% 0%, #000 0%, transparent 75%);
}

/* ===== Header ===== */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(246,242,232,.86);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
  padding-top:env(safe-area-inset-top);
}
.header-row{
  display:flex;align-items:center;justify-content:space-between;
  height:66px;
}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:1.05rem;color:var(--ink)}
.brand-mark{color:var(--brass);display:flex}
.brand-text em{font-style:normal;color:var(--brass)}
.main-nav{display:flex;gap:28px;align-items:center}
.main-nav a{font-size:.92rem;color:var(--steel);font-weight:500;position:relative;padding-bottom:4px}
.main-nav a:hover{color:var(--ink)}

/* ===== eyebrow / headings ===== */
.eyebrow{
  font-size:.8rem;letter-spacing:.04em;font-weight:700;color:var(--brass);
  margin:0 0 14px;text-transform:none;
}
.eyebrow-dark{color:var(--brass-light)}
.section-title{font-size:clamp(1.5rem,3vw,2.1rem);font-weight:800;margin:0 0 34px}

/* ===== Hero ===== */
.hero{padding:64px 0 80px}
.hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start}
.hero-copy h1{
  font-size:clamp(1.9rem,3.4vw,2.7rem);
  font-weight:800;line-height:1.35;margin:0 0 20px;
}
.hero-copy h1 .accent{color:var(--brass)}
.lead{font-size:1.05rem;color:var(--steel);max-width:46ch;margin:0 0 26px}
.trust-row{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:10px}
.trust-row li{
  font-size:.88rem;color:var(--ink);padding-right:22px;position:relative;
}
.trust-row li::before{
  content:"";position:absolute;right:0;top:.55em;width:10px;height:1px;background:var(--brass);
}

/* ===== Blueprint frame signature element ===== */
.blueprint-frame{
  position:relative;
  border:1px solid var(--line);
  background:var(--plaster-light);
}
.blueprint-frame::before,.blueprint-frame::after,
.blueprint-frame .corner-tl,.blueprint-frame .corner-br{content:""}
.blueprint-frame::before,.blueprint-frame::after{
  position:absolute;width:16px;height:16px;pointer-events:none;
}
.blueprint-frame::before{
  top:-1px;right:-1px;border-top:2px solid var(--brass);border-right:2px solid var(--brass);
}
.blueprint-frame::after{
  bottom:-1px;left:-1px;border-bottom:2px solid var(--brass);border-left:2px solid var(--brass);
}

/* ===== Studio panel ===== */
.studio-panel{
  border-radius:var(--radius);
  padding:28px;
  box-shadow:0 24px 60px -30px rgba(26,24,22,.35);
}
.panel-tabsteps{display:flex;gap:8px;margin-bottom:22px}
.step-dot{width:28px;height:3px;background:var(--line);display:block}
.step-dot.active{background:var(--brass)}
.panel-title{font-size:1.05rem;font-weight:700;margin:0 0 18px}

.visually-hidden-file{
  position:absolute;width:1px;height:1px;padding:0;margin:-1px;
  overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;
}

.dropzone{
  display:flex;flex-direction:column;align-items:center;gap:8px;
  border:1.5px dashed var(--line);border-radius:var(--radius);
  padding:44px 20px;text-align:center;cursor:pointer;
  color:var(--steel);transition:border-color .15s,background .15s;
}
.dropzone:hover{border-color:var(--brass);background:rgba(184,134,59,.05)}
.dz-icon{color:var(--brass)}
.dz-text{font-weight:600;color:var(--ink)}
.dz-sub{font-size:.8rem;color:var(--steel)}

.preview-wrap{display:flex;flex-direction:column;align-items:center;gap:14px}
.preview-wrap img{max-height:280px;border:1px solid var(--line);border-radius:var(--radius)}

.field-row{margin-bottom:20px}
.field-row label{display:block;font-size:.88rem;font-weight:600;margin-bottom:8px}
.field-row .opt{font-weight:400;color:var(--steel)}
.field-hint{font-size:.78rem;color:var(--steel);margin:8px 2px 0;line-height:1.6}
select, textarea{
  width:100%;font-family:var(--font);font-size:.94rem;
  padding:11px 12px;border:1px solid var(--line);border-radius:var(--radius);
  background:#fff;color:var(--ink);resize:vertical;
}
select:focus, textarea:focus, .chip:focus-visible, .primary-btn:focus-visible, .ghost-btn:focus-visible, .dropzone:focus-visible{
  outline:2px solid var(--brass);outline-offset:2px;
}

.chip-field-label{display:block;font-size:.88rem;font-weight:600;margin-bottom:10px}
.chip-row{display:flex;flex-wrap:wrap;gap:8px}
.chip{
  font-family:var(--font);font-size:.86rem;font-weight:600;
  padding:9px 16px;border:1px solid var(--line);border-radius:20px;
  background:#fff;color:var(--ink);cursor:pointer;transition:all .15s;
}
.chip:hover{border-color:var(--brass)}
.chip.active{background:var(--charcoal);border-color:var(--charcoal);color:var(--plaster-light)}

.panel-actions{display:flex;justify-content:space-between;gap:12px;margin-top:26px}
.primary-btn, .ghost-btn{
  font-family:var(--font);font-size:.92rem;font-weight:700;
  padding:12px 26px;border-radius:var(--radius);cursor:pointer;border:1px solid transparent;
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
}
.primary-btn{background:var(--brass);color:var(--charcoal);margin-inline-start:auto}
.primary-btn:hover{background:var(--brass-light)}
.primary-btn:disabled{opacity:.45;cursor:not-allowed}
.ghost-btn{background:transparent;border-color:var(--line);color:var(--ink)}
.ghost-btn:hover{border-color:var(--brass)}

/* ===== Result / compare ===== */
.result-area{min-height:220px}
.drafting-loader{display:flex;flex-direction:column;align-items:center;gap:14px;padding:30px 0;color:var(--brass)}
.draft-svg{width:100%;max-width:280px}
#draftLine{stroke-dasharray:400;stroke-dashoffset:400;animation:draw 1.6s ease-in-out infinite}
@keyframes draw{
  0%{stroke-dashoffset:400}
  60%{stroke-dashoffset:0}
  100%{stroke-dashoffset:0}
}
#loaderText{font-size:.9rem;color:var(--steel)}

.compare{display:flex;flex-direction:column;gap:18px}
.compare-frame{position:relative;overflow:hidden;aspect-ratio:4/3;background:var(--charcoal)}
.compare-after, .compare-before{width:100%;height:100%;object-fit:cover;position:absolute;inset:0}
.compare-before-wrap{position:absolute;top:0;bottom:0;right:0;overflow:hidden;width:50%}
.compare-before{position:absolute;top:0;right:0;height:100%;object-fit:cover}
.compare-range{
  position:absolute;inset:0;width:100%;height:100%;margin:0;opacity:0;cursor:ew-resize;
  touch-action:pan-y;
}
.compare-handle{
  position:absolute;top:0;bottom:0;right:50%;width:2px;background:var(--brass-light);
  pointer-events:none;transform:translateX(1px);
}
.compare-handle::after{
  content:"";position:absolute;top:50%;right:50%;transform:translate(50%,-50%);
  width:34px;height:34px;border-radius:50%;background:var(--brass);
  border:2px solid var(--plaster-light);
}
.tag{
  position:absolute;top:12px;font-size:.72rem;font-weight:700;letter-spacing:.03em;
  padding:4px 10px;background:rgba(26,24,22,.72);color:var(--plaster-light);border-radius:20px;
  pointer-events:none;
}
.tag-before{right:12px}
.tag-after{left:12px}
.result-actions{display:flex;gap:12px}
.error-box{
  background:rgba(140,74,47,.08);border:1px solid var(--rust);color:var(--rust);
  padding:14px 16px;border-radius:var(--radius);font-size:.88rem;
}

/* ===== How it works ===== */
.how{background:var(--charcoal);color:var(--plaster-light);padding:76px 0}
.how-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:32px}
.how-item{border-top:1px solid var(--line-light);padding-top:18px}
.how-num{display:block;font-weight:800;font-size:.85rem;color:var(--brass-light);margin-bottom:10px;letter-spacing:.05em}
.how-item h3{margin:0 0 8px;font-size:1.1rem}
.how-item p{margin:0;color:rgba(246,242,232,.68);font-size:.92rem}

/* ===== Styles showcase ===== */
.styles-section{padding:76px 0}
.style-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.style-card{
  border:1px solid var(--line);border-radius:var(--radius);padding:22px;
  background:var(--plaster-light);transition:transform .15s, box-shadow .15s;
}
.style-card:hover{transform:translateY(-3px);box-shadow:0 16px 30px -20px rgba(26,24,22,.35)}
.style-card h3{margin:0 0 8px;font-size:1rem}
.style-card p{margin:0;color:var(--steel);font-size:.88rem}

/* ===== Footer ===== */
.site-footer{border-top:1px solid var(--line);padding:26px 0;padding-bottom:calc(26px + env(safe-area-inset-bottom));margin-top:20px}
.footer-row{display:flex;justify-content:space-between;font-size:.82rem;color:var(--steel)}
.footer-row a{color:var(--brass)}

/* ===== Responsive ===== */
@media (max-width:860px){
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .how-grid,.style-cards{grid-template-columns:1fr}
  .header-row{height:58px}
  .main-nav{gap:16px}
  .main-nav a{font-size:.82rem}
}