/* ==========================================================================
   Design tokens — "drafting viewport" system
   Grounded in the actual visual language of a CAD/3D modelspace: a dark
   viewport with a snap grid, cyan wireframe geometry, and warm amber
   "quote/action" stamps, paired with drafting-paper cards for content.
   ========================================================================== */
:root {
  --canvas: #12161b;
  --canvas-raised: #1a2029;
  --canvas-line: #262e38;
  --paper: #ece7da;
  --ink: #edeff2;
  --ink-dim: #8f99a6;
  --ink-on-paper: #20242b;
  --wire: #4fd1c5;
  --wire-soft: rgba(79, 209, 197, 0.14);
  --stamp: #e8a33d;
  --stamp-soft: rgba(232, 163, 61, 0.14);
  --danger: #e2665b;

  --font-display: "Vazirmatn", sans-serif;
  --font-body: "Vazirmatn", sans-serif;
  --font-mono: "JetBrains Mono", monospace;

  --radius: 4px;
  --container: 1180px;
}

/* ---- Reset ---- */
*, *::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(--canvas);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 800; margin: 0 0 0.5em; line-height: 1.3; }
p { margin: 0 0 1em; color: var(--ink-dim); }
ul { margin: 0; padding: 0; list-style: none; }
button { font-family: inherit; cursor: pointer; }

/* Background grid — the "modelspace" texture, used behind dark sections */
.grid-bg {
  background-image:
    linear-gradient(var(--canvas-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--canvas-line) 1px, transparent 1px);
  background-size: 40px 40px;
  background-position: center;
}

.mono {
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
}
.eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--wire);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.eyebrow::before {
  content: "";
  width: 8px; height: 8px;
  border: 1px solid currentColor;
  transform: rotate(45deg);
  flex-shrink: 0;
}

.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.section { padding: 88px 0; }
.section-tight { padding: 56px 0; }

/* Dimension-line divider — mimics a CAD dimension callout: tick / line / label / tick */
.dim-divider {
  display: flex;
  align-items: center;
  gap: 16px;
  color: var(--ink-dim);
  margin-bottom: 48px;
}
.dim-divider::before, .dim-divider::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--canvas-line);
  position: relative;
}
.dim-divider::before { border-inline-start: 1px solid var(--canvas-line); }
.dim-divider::after { border-inline-end: 1px solid var(--canvas-line); }
.dim-divider span {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  white-space: nowrap;
}

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: var(--radius);
  font-weight: 700;
  font-size: 15px;
  border: 1px solid transparent;
  transition: transform 0.15s ease, background 0.15s ease, border-color 0.15s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn:focus-visible { outline: 2px solid var(--wire); outline-offset: 3px; }
.btn-primary { background: var(--stamp); color: #1a1305; }
.btn-primary:hover { background: #f2b256; }
.btn-outline { border-color: var(--canvas-line); color: var(--ink); background: transparent; }
.btn-outline:hover { border-color: var(--wire); color: var(--wire); }
.btn-block { width: 100%; }

/* ---- Header ---- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(18, 22, 27, 0.9);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--canvas-line);
}
.site-header .container { display: flex; align-items: center; justify-content: space-between; height: 76px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 18px; }
.brand-mark {
  width: 30px; height: 30px;
  border: 1.5px solid var(--wire);
  display: flex; align-items: center; justify-content: center;
  color: var(--wire);
  font-family: var(--font-mono);
  font-size: 13px;
  transform: rotate(45deg);
  flex-shrink: 0;
}
.brand-mark span { transform: rotate(-45deg); }
.nav-links { display: flex; align-items: center; gap: 32px; }
.nav-links a { font-size: 14px; font-weight: 500; color: var(--ink-dim); transition: color 0.15s ease; }
.nav-links a:hover, .nav-links a.active { color: var(--wire); }
.nav-actions { display: flex; align-items: center; gap: 12px; }
.nav-toggle { display: none; background: none; border: 1px solid var(--canvas-line); border-radius: var(--radius); color: var(--ink); padding: 8px 10px; }

@media (max-width: 880px) {
  .nav-toggle { display: inline-flex; }
  .nav-links {
    position: absolute; inset-inline: 0; top: 76px;
    background: var(--canvas-raised);
    border-bottom: 1px solid var(--canvas-line);
    flex-direction: column; align-items: flex-start;
    padding: 20px 24px; gap: 18px;
    display: none;
  }
  .nav-links.is-open { display: flex; }
  .nav-actions { display: none; width: 100%; }
  .nav-links.is-open .nav-actions { display: flex; }
}

/* ---- Hero ---- */
.hero { position: relative; padding: 72px 0 96px; overflow: hidden; }
.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 56px;
  align-items: center;
}
.hero h1 { font-size: clamp(32px, 4.4vw, 54px); margin: 18px 0 20px; }
.hero h1 em { font-style: normal; color: var(--wire); }
.hero-lede { font-size: 17px; max-width: 46ch; }
.hero-cta { display: flex; gap: 14px; margin-top: 32px; flex-wrap: wrap; }
.hero-stats { display: flex; gap: 32px; margin-top: 48px; }
.hero-stat b { display: block; font-family: var(--font-mono); font-size: 22px; color: var(--ink); }
.hero-stat span { font-size: 12px; color: var(--ink-dim); text-transform: uppercase; letter-spacing: 0.08em; }

/* Wireframe → render comparison — the signature element */
.compare {
  position: relative;
  aspect-ratio: 4 / 3.4;
  border: 1px solid var(--canvas-line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--canvas-raised);
  touch-action: none;
  user-select: none;
}
.compare-layer { position: absolute; inset: 0; }
.compare-layer svg { width: 100%; height: 100%; }
.compare-wire { clip-path: inset(0 50% 0 0); }
.compare-tag {
  position: absolute; top: 14px;
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.08em;
  text-transform: uppercase; padding: 5px 10px; border-radius: 2px;
  background: rgba(0,0,0,0.35); backdrop-filter: blur(2px);
}
.compare-tag.tag-wire { inset-inline-start: 14px; color: var(--wire); border: 1px solid var(--wire); }
.compare-tag.tag-render { inset-inline-end: 14px; color: var(--stamp); border: 1px solid var(--stamp); }
.compare-handle {
  position: absolute; top: 0; bottom: 0; left: 50%;
  width: 2px; background: var(--wire);
  cursor: ew-resize;
  transform: translateX(-1px);
}
.compare-handle::after {
  content: "⇔";
  position: absolute; top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 34px; height: 34px;
  border-radius: 50%;
  background: var(--wire); color: #08201d;
  display: flex; align-items: center; justify-content: center;
  font-size: 15px;
  box-shadow: 0 0 0 5px rgba(79,209,197,0.18);
}

/* ---- Cards ---- */
.card-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.service-card {
  background: var(--canvas-raised);
  border: 1px solid var(--canvas-line);
  border-radius: var(--radius);
  padding: 28px;
  transition: border-color 0.15s ease, transform 0.15s ease;
}
.service-card:hover { border-color: var(--wire); transform: translateY(-3px); }
.service-card .tag {
  font-family: var(--font-mono); font-size: 11px; color: var(--wire);
  border: 1px solid var(--wire-soft); background: var(--wire-soft);
  display: inline-block; padding: 4px 9px; border-radius: 2px; margin-bottom: 16px;
  letter-spacing: 0.06em;
}
.service-card h3 { font-size: 19px; margin-bottom: 8px; }
.service-card p { font-size: 14.5px; margin-bottom: 0; }
.service-card a.card-link { display: block; }

/* Process steps — a REAL sequence (order flow), numbering is earned here */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.step { position: relative; padding-top: 28px; border-top: 1px solid var(--canvas-line); }
.step b {
  font-family: var(--font-mono); font-size: 13px; color: var(--stamp);
  display: block; margin-bottom: 10px;
}
.step h4 { font-size: 16px; margin-bottom: 6px; }
.step p { font-size: 14px; margin-bottom: 0; }

/* Paper cards — used for content that wants a "printed drawing" feel */
.paper-card {
  background: var(--paper);
  color: var(--ink-on-paper);
  border-radius: var(--radius);
  padding: 40px;
}
.paper-card p { color: #4a4536; }
.paper-card .eyebrow { color: #a15f16; }
.paper-card .form-row label { color: var(--ink-on-paper); }
.paper-card .form-row .hint { color: #6b6650; }

.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }

/* ---- FAQ ---- */
.faq-item { border-bottom: 1px solid var(--canvas-line); padding: 22px 0; }
.faq-item summary { font-weight: 700; font-size: 16px; cursor: pointer; list-style: none; display: flex; justify-content: space-between; gap: 16px; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; font-family: var(--font-mono); color: var(--wire); flex-shrink: 0; }
.faq-item[open] summary::after { content: "−"; }
.faq-item p { margin-top: 14px; margin-bottom: 0; }

/* ---- Forms ---- */
.form-row { margin-bottom: 20px; }
.form-row label { display: block; font-size: 13px; font-weight: 700; margin-bottom: 8px; color: var(--ink); }
.form-row .hint { font-family: var(--font-mono); font-size: 11px; color: var(--ink-dim); }
.form-row input, .form-row select, .form-row textarea {
  width: 100%;
  background: var(--canvas-raised);
  border: 1px solid var(--canvas-line);
  border-radius: var(--radius);
  padding: 12px 14px;
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 15px;
}
.form-row textarea { resize: vertical; min-height: 120px; }
.form-row input:focus, .form-row select:focus, .form-row textarea:focus {
  outline: none; border-color: var(--wire);
}
.form-row .errorlist { color: var(--danger); font-size: 13px; margin: 8px 0 0; padding: 0; }
.form-row .errorlist li { list-style: none; }

/* ---- Alerts ---- */
.alert { padding: 14px 18px; border-radius: var(--radius); font-size: 14px; margin-bottom: 16px; border: 1px solid; }
.alert-success { background: var(--wire-soft); border-color: var(--wire); color: var(--wire); }
.alert-error, .alert-danger { background: rgba(226,102,91,0.12); border-color: var(--danger); color: var(--danger); }
.alert-info, .alert-warning { background: var(--stamp-soft); border-color: var(--stamp); color: var(--stamp); }

/* ---- Footer ---- */
.site-footer { border-top: 1px solid var(--canvas-line); padding: 56px 0 28px; margin-top: 40px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
.footer-grid h5 { font-size: 13px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--ink-dim); margin-bottom: 16px; }
.footer-grid li { margin-bottom: 10px; font-size: 14px; }
.footer-grid a:hover { color: var(--wire); }
.footer-meta {
  display: flex; justify-content: space-between; align-items: center;
  font-family: var(--font-mono); font-size: 11.5px; color: var(--ink-dim);
  border-top: 1px solid var(--canvas-line); padding-top: 20px; flex-wrap: wrap; gap: 10px;
}

/* ---- Auth shell (allauth pages) ---- */
.auth-shell { max-width: 440px; margin: 64px auto; }
.auth-shell .paper-card { padding: 36px; }
.auth-shell h1 { font-size: 24px; }
.auth-shell .helptext { font-size: 12px; color: #6b6650; }

/* Generic styling for django-allauth's own (unwrapped) form markup */
.auth-shell form p { margin: 0 0 18px; }
.auth-shell form label { display: block; font-size: 13px; font-weight: 700; margin-bottom: 8px; color: var(--ink-on-paper); }
.auth-shell form input:not([type="checkbox"]):not([type="radio"]),
.auth-shell form textarea,
.auth-shell form select {
  width: 100%;
  background: var(--canvas-raised);
  border: 1px solid var(--canvas-line);
  border-radius: var(--radius);
  padding: 12px 14px;
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 15px;
}
.auth-shell form input:focus, .auth-shell form textarea:focus, .auth-shell form select:focus { outline: none; border-color: var(--wire); }
.auth-shell form input[type="checkbox"], .auth-shell form input[type="radio"] { width: auto; margin-inline-end: 8px; }
.auth-shell form button, .auth-shell form a[type="button"] {
  display: inline-flex; align-items: center; justify-content: center;
  width: 100%; padding: 14px 24px; margin-top: 6px;
  background: var(--stamp); color: #1a1305; font-weight: 700; font-size: 15px;
  border: none; border-radius: var(--radius);
}
.auth-shell form hr { border: none; border-top: 1px solid var(--canvas-line); margin: 24px 0; }
.auth-shell ul.errorlist { color: var(--danger); font-size: 13px; padding: 0; margin: 0 0 12px; }
.auth-shell ul.errorlist li { list-style: none; }
.auth-shell a { color: var(--wire); }

/* ---- Reveal-on-scroll ---- */
.reveal { opacity: 0; transform: translateY(16px); transition: opacity 0.5s ease, transform 0.5s ease; }
.reveal.is-visible { opacity: 1; transform: translateY(0); }

/* ---- Responsive ---- */
@media (max-width: 960px) {
  .hero-grid { grid-template-columns: 1fr; }
  .card-grid { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .two-col { grid-template-columns: 1fr; gap: 32px; }
}
@media (max-width: 560px) {
  .section { padding: 56px 0; }
  .card-grid, .steps { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .hero-stats { flex-wrap: wrap; row-gap: 20px; }
}