@font-face { font-family: Vazirmatn; font-weight: 400; font-display: swap; src: url(/fonts/Vazirmatn-Regular.ttf); }
@font-face { font-family: Vazirmatn; font-weight: 700; font-display: swap; src: url(/fonts/Vazirmatn-Bold.ttf); }
@font-face { font-family: Vazirmatn; font-weight: 800; font-display: swap; src: url(/fonts/Vazirmatn-ExtraBold.ttf); }

:root {
  --bg: #f6f8f7; --card: #fff; --text: #10201e; --muted: #566663; --line: #e2e9e7; --tint: #ecf5f3;
  --teal: #0f766e; --teal2: #14b8a6; --sky: #3ba9f5; --nav: rgba(246, 248, 247, .85);
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #0e1615; --card: #16211f; --text: #e8f1ef; --muted: #a0b2ae; --line: #25312f; --tint: #121d1b; --nav: rgba(14, 22, 21, .85); }
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body { margin: 0; background: var(--bg); color: var(--text); font: 400 17px/1.9 Vazirmatn, Tahoma, sans-serif; overflow-x: hidden; }
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
h1, h2, h3 { line-height: 1.4; margin: 0; }
.wrap { max-width: 1140px; margin: auto; padding-inline: 20px; }
.narrow { max-width: 760px; }

.nav { position: sticky; top: 0; z-index: 10; background: var(--nav); backdrop-filter: blur(14px); border-bottom: 1px solid var(--line); }
.nav-in { display: flex; align-items: center; gap: 28px; height: 68px; }
.nav nav { display: flex; gap: 24px; margin-inline-end: auto; color: var(--muted); font-size: 15px; }
.nav nav a:hover { color: var(--teal2); }
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 800; }
.brand img { border-radius: 10px; }

.btn { display: inline-block; padding: 13px 26px; border-radius: 14px; font-weight: 700; color: #fff; background: linear-gradient(135deg, var(--teal), var(--teal2)); box-shadow: 0 10px 24px rgba(15, 118, 110, .28); transition: transform .15s; }
.btn:hover { transform: translateY(-2px); }
.btn.small { padding: 8px 18px; font-size: 15px; box-shadow: none; }
.btn.ghost { background: rgba(255, 255, 255, .16); box-shadow: inset 0 0 0 1.5px rgba(255, 255, 255, .55); }

.hero { color: #fff; background: linear-gradient(135deg, #0f766e, #14b8a6 55%, #3ba9f5); overflow: hidden; }
.hero-in { display: grid; grid-template-columns: 1.1fr .9fr; gap: 40px; align-items: center; padding-block: 72px; }
.hero h1 { font-size: clamp(32px, 5vw, 52px); font-weight: 800; }
.hero h1 span { color: #fde68a; }
.hero p { font-size: 19px; opacity: .95; margin: 20px 0 28px; max-width: 34em; }
.cta { display: flex; gap: 12px; flex-wrap: wrap; }
.hero .btn:not(.ghost) { background: #fff; color: var(--teal); }
.ticks { list-style: none; padding: 0; margin: 26px 0 0; display: flex; flex-wrap: wrap; gap: 6px 22px; font-size: 15px; }
.ticks li::before { content: "✓"; margin-inline-end: 6px; font-weight: 800; }

.phones { position: relative; height: 560px; }
.phone { border-radius: 34px; overflow: hidden; border: 7px solid #0b1514; background: #0b1514; box-shadow: 0 30px 60px rgba(0, 0, 0, .35); }
.phones .phone { position: absolute; width: 250px; }
.phone.front { inset-inline-end: 20px; top: 0; z-index: 2; }
.phone.back { inset-inline-start: 10px; top: 44px; transform: rotate(-5deg); opacity: .95; }
.phone.solo { width: min(280px, 80%); margin: auto; }

.section { padding-block: 84px; }
.section h2 { font-size: clamp(26px, 3.6vw, 36px); font-weight: 800; text-align: center; margin-bottom: 40px; }
.tint { background: var(--tint); }
.lead { color: var(--muted); font-size: 18px; }
.center { text-align: center; margin-top: -24px; }

.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.steps article { background: var(--card); border: 1px solid var(--line); border-radius: 22px; padding: 26px; }
.steps b { display: grid; place-items: center; width: 44px; height: 44px; border-radius: 14px; color: #fff; font-weight: 800; background: linear-gradient(135deg, #7c5cff, var(--teal)); margin-bottom: 14px; }
.steps h3, .card h3 { font-size: 19px; font-weight: 700; margin-bottom: 6px; }
.steps p, .card p { margin: 0; color: var(--muted); font-size: 16px; }

.grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 22px; padding: 22px; transition: transform .2s, box-shadow .2s; }
.card:hover { transform: translateY(-4px); box-shadow: 0 16px 30px rgba(15, 118, 110, .12); }
.card i { display: grid; place-items: center; width: 50px; height: 50px; font-style: normal; font-size: 24px; border-radius: 16px; margin-bottom: 14px; background: color-mix(in srgb, var(--c) 16%, transparent); }

.split { display: grid; grid-template-columns: 1.2fr .8fr; gap: 40px; align-items: center; }
.split h2 { text-align: start; margin-bottom: 14px; }
.link { color: var(--teal2); font-weight: 700; }

.dl { background: linear-gradient(135deg, #7c5cff, #0f766e); color: #fff; }
.dl .lead { color: #fff; opacity: .9; }
.dl-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.dl-card { display: block; padding: 24px; border-radius: 22px; background: rgba(255, 255, 255, .13); box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .25); transition: background .15s; }
.dl-card:hover { background: rgba(255, 255, 255, .22); }
.dl-card strong { display: block; font-size: 20px; }
.dl-card span { font-size: 15px; opacity: .92; }
.note { text-align: center; font-size: 14px; opacity: .85; margin: 22px 0 0; }

details { background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 14px 20px; margin-bottom: 10px; }
summary { cursor: pointer; font-weight: 700; }
details p { margin: 8px 0 0; color: var(--muted); }

.foot { border-top: 1px solid var(--line); padding-block: 26px; }
.foot-in { display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap; }
.foot nav { display: flex; gap: 20px; color: var(--muted); font-size: 15px; }

.doc { padding-block: 48px; }
.doc h1 { font-size: 32px; font-weight: 800; margin-bottom: 18px; }
.doc h2 { font-size: 21px; margin: 26px 0 6px; }
.doc p, .doc li { color: var(--muted); }

.js .reveal { opacity: 0; transform: translateY(22px); transition: opacity .6s ease, transform .6s ease; }
.js .reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .js .reveal { opacity: 1; transform: none; transition: none; }
}

@media (max-width: 960px) {
  .grid { grid-template-columns: repeat(2, 1fr); }
  .hero-in { grid-template-columns: 1fr; padding-block: 48px 0; }
  .phones { height: 400px; overflow: hidden; }
  .nav nav { display: none; }
  .nav-in { justify-content: space-between; }
}
@media (max-width: 680px) {
  .steps, .dl-grid, .split { grid-template-columns: 1fr; }
  .phones .phone { width: 200px; }
  .phone.front { inset-inline-end: 8px; }
  .phone.back { inset-inline-start: 0; }
  .section { padding-block: 56px; }
}
@media (max-width: 420px) { .grid { grid-template-columns: 1fr; } }