@font-face {
  font-family: "IRY";
  src: url("../fonts/fa/IRY.woff2") format("woff2"), url("../fonts/fa/IRY.woff") format("woff");
  font-style: normal;
  font-weight: 400;
  font-display: swap;
}

@font-face {
  font-family: "IRY";
  src: url("../fonts/fa/IRY-Medium.woff2") format("woff2"), url("../fonts/fa/IRY-Medium.woff") format("woff");
  font-style: normal;
  font-weight: 500 600;
  font-display: swap;
}

@font-face {
  font-family: "IRY";
  src: url("../fonts/fa/IRY-Bold.woff2") format("woff2"), url("../fonts/fa/IRY-Bold.woff") format("woff");
  font-style: normal;
  font-weight: 700 900;
  font-display: swap;
}

:root {
  font-family: "IRY", "Vazir", Tahoma, sans-serif;
  color-scheme: dark;
  --bg: #10141d;
  --surface: #171d29;
  --surface-raised: #1c2432;
  --text: #f2f4f8;
  --muted: #a5afbd;
  --line: rgba(229, 236, 248, .12);
  --accent: #c4f36b;
  --accent-ink: #1c2810;
  --shadow: 0 18px 46px rgba(0, 0, 0, .2);
  --focus: #ffe27a;
  --page-glow: rgba(172, 223, 83, .12);
}

[data-theme="light"] {
  color-scheme: light;
  --bg: #f5f6f2;
  --surface: #fff;
  --surface-raised: #f0f2eb;
  --text: #172019;
  --muted: #626d64;
  --line: rgba(23, 32, 25, .13);
  --accent: #426b17;
  --accent-ink: #fff;
  --shadow: 0 18px 46px rgba(35, 49, 30, .08);
  --focus: #805300;
  --page-glow: rgba(137, 180, 69, .13);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 96px; }
body { min-width: 320px; margin: 0; background: var(--bg); color: var(--text); font-size: 16px; line-height: 1.8; transition: background-color .25s ease, color .25s ease; }
button, a { font: inherit; }
a { color: inherit; }
svg { display: block; }
.shell { width: min(1160px, calc(100% - 48px)); margin-inline: auto; }
.visually-hidden { position: absolute !important; width: 1px !important; height: 1px !important; padding: 0 !important; margin: -1px !important; overflow: hidden !important; clip: rect(0, 0, 0, 0) !important; white-space: nowrap !important; border: 0 !important; }
.skip-link { position: fixed; z-index: 20; top: 12px; right: 12px; padding: 10px 16px; transform: translateY(-160%); border-radius: 10px; background: var(--accent); color: var(--accent-ink); font-weight: 700; text-decoration: none; }
.skip-link:focus { transform: translateY(0); }
:focus-visible { outline: 3px solid var(--focus); outline-offset: 4px; }

.site-header { position: sticky; z-index: 10; top: 0; border-bottom: 1px solid var(--line); background: color-mix(in srgb, var(--bg) 86%, transparent); backdrop-filter: blur(18px); }
.header-inner { display: flex; min-height: 78px; align-items: center; justify-content: space-between; gap: 20px; }
.brand { display: inline-flex; align-items: center; gap: 12px; border-radius: 10px; text-decoration: none; }
.brand-mark { display: grid; width: 44px; height: 44px; place-items: center; border: 1px solid var(--line); border-radius: 15px; background: var(--accent); color: var(--accent-ink); }
.brand-mark svg { width: 28px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.brand-copy { display: grid; line-height: 1.5; }
.brand-copy strong { font-size: .98rem; font-weight: 800; }
.brand-copy span { color: var(--muted); font-size: .76rem; }
.theme-button { display: inline-flex; min-height: 44px; align-items: center; gap: 9px; padding: 7px 14px; border: 1px solid var(--line); border-radius: 999px; background: var(--surface); color: var(--text); cursor: pointer; transition: border-color .2s, transform .2s, background-color .25s; }
.theme-button:hover { transform: translateY(-1px); border-color: var(--accent); }
.theme-icon { display: grid; width: 23px; height: 23px; place-items: center; color: var(--accent); }
.theme-icon svg { width: 20px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.theme-label { font-size: .82rem; font-weight: 700; }

.hero { position: relative; overflow: hidden; border-bottom: 1px solid var(--line); background: radial-gradient(ellipse at 78% 28%, var(--page-glow), transparent 36%), var(--surface); }
.hero-inner { position: relative; display: grid; min-height: 410px; grid-template-columns: 1.05fr .95fr; align-items: center; gap: 40px; padding-block: 58px 48px; }
.hero-copy { position: relative; z-index: 1; max-width: 580px; }
.eyebrow, .section-kicker { display: flex; align-items: center; gap: 9px; margin: 0 0 15px; color: var(--accent); font-size: .82rem; font-weight: 700; }
.live-dot, .status-dot { width: 9px; height: 9px; flex: 0 0 auto; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 4px color-mix(in srgb, var(--accent) 18%, transparent); }
.hero h1 { margin: 0; font-size: clamp(2.6rem, 6vw, 4.5rem); font-weight: 900; line-height: 1.28; letter-spacing: -.045em; }
.hero h1 span { color: var(--accent); }
.hero-description { max-width: 490px; margin: 16px 0 23px; color: var(--muted); font-size: 1rem; }
.hero-link { display: inline-flex; align-items: center; gap: 10px; color: var(--text); font-size: .9rem; font-weight: 700; text-decoration: none; }
.hero-link span { display: grid; width: 29px; height: 29px; place-items: center; border: 1px solid var(--line); border-radius: 50%; color: var(--accent); transition: transform .2s; }
.hero-link:hover span { transform: translateY(3px); }
.hero-art { position: relative; display: grid; min-height: 285px; place-items: center; }
.orbit { position: absolute; aspect-ratio: 1; border: 1px solid var(--line); border-radius: 50%; }
.orbit-outer { width: min(300px, 75vw); transform: rotate(-25deg) scaleY(.58); }
.orbit-inner { width: min(240px, 62vw); transform: rotate(48deg) scaleY(.65); border-style: dashed; }
.hero-symbol { display: grid; width: 140px; height: 140px; place-items: center; border: 1px solid color-mix(in srgb, var(--accent) 35%, transparent); border-radius: 42px; background: linear-gradient(145deg, color-mix(in srgb, var(--accent) 22%, var(--surface)), var(--surface-raised)); box-shadow: 0 22px 70px var(--page-glow); color: var(--accent); transform: rotate(-8deg); }
.hero-symbol svg { width: 82px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.float-chip { position: absolute; padding: 8px 13px; border: 1px solid var(--line); border-radius: 12px; background: var(--surface); box-shadow: var(--shadow); color: var(--text); font-size: .76rem; font-weight: 700; }
.chip-book { top: 18%; right: 5%; }.chip-ai { bottom: 18%; left: 3%; }
.spark { position: absolute; color: var(--accent); }.spark-one { top: 18%; left: 24%; font-size: 1.35rem; }.spark-two { right: 16%; bottom: 19%; font-size: 1.1rem; }
.hero-bottom { display: flex; align-items: center; gap: 15px; padding-bottom: 17px; color: var(--muted); font-size: .72rem; }
.hero-bottom-line { width: 42px; height: 1px; background: var(--line); }

.services { padding-block: 68px 82px; }
.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 24px; margin-bottom: 28px; }
.section-kicker { margin-bottom: 4px; }
.section-heading h2 { margin: 0; font-size: clamp(1.55rem, 3vw, 2rem); font-weight: 800; letter-spacing: -.02em; }
.section-note { max-width: 340px; margin: 0 0 4px; color: var(--muted); font-size: .86rem; }
.service-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; }
.service-card { --card-accent: #79cbd0; --card-tint: rgba(121, 203, 208, .11); position: relative; display: flex; min-height: 300px; flex-direction: column; overflow: hidden; padding: 21px; border: 1px solid var(--line); border-radius: 20px; background: var(--surface); color: var(--text); text-decoration: none; transition: transform .23s ease, border-color .23s ease, box-shadow .23s ease, background-color .25s ease; }
.service-card::before { position: absolute; top: 0; right: 0; left: 0; height: 3px; background: var(--card-accent); content: ""; transform: scaleX(.18); transform-origin: right; transition: transform .23s ease; }
.service-card:hover { transform: translateY(-5px); border-color: color-mix(in srgb, var(--card-accent) 52%, var(--line)); box-shadow: var(--shadow); }
.service-card:hover::before { transform: scaleX(1); }
.service-card:focus-visible { outline-color: var(--card-accent); }
.service-card.upload { --card-accent: #62d3cb; --card-tint: rgba(98, 211, 203, .12); }
.service-card.books { --card-accent: #b7dc70; --card-tint: rgba(183, 220, 112, .12); }
.service-card.exam { --card-accent: #b9a0ff; --card-tint: rgba(185, 160, 255, .13); }
.service-card.ai { --card-accent: #ffad7c; --card-tint: rgba(255, 173, 124, .13); }
.card-top { display: flex; align-items: center; justify-content: space-between; }
.card-icon { display: grid; width: 52px; height: 52px; place-items: center; border: 1px solid color-mix(in srgb, var(--card-accent) 25%, transparent); border-radius: 16px; background: var(--card-tint); color: var(--card-accent); }
.card-icon svg { width: 27px; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
.card-index { color: var(--muted); font-size: .82rem; font-weight: 700; opacity: .75; }
.card-content { display: grid; gap: 8px; margin-top: 25px; }
.card-title { font-size: 1.08rem; font-weight: 800; }
.card-description { color: var(--muted); font-size: .81rem; line-height: 1.95; }
.card-action { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-top: auto; padding-top: 17px; color: var(--card-accent); font-size: .8rem; font-weight: 700; }
.card-action span { font-size: 1.1rem; transition: transform .2s; }
.service-card:hover .card-action span { transform: translateX(-4px); }

.site-footer { border-top: 1px solid var(--line); background: var(--surface); }
.footer-inner { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 18px 30px; padding-block: 25px; }
.footer-brand { display: flex; align-items: center; gap: 12px; }
.footer-mark { display: grid; width: 38px; height: 38px; place-items: center; border-radius: 13px; background: var(--accent); color: var(--accent-ink); font-size: 1.1rem; font-weight: 900; }
.footer-brand strong { font-size: .86rem; }.footer-brand p { margin: 1px 0 0; color: var(--muted); font-size: .73rem; }
.footer-status { display: inline-flex; align-items: center; gap: 10px; color: var(--muted); font-size: .76rem; }
.status-dot { width: 8px; height: 8px; background: #71d39a; box-shadow: 0 0 0 4px rgba(113, 211, 154, .13); }
.copyright { grid-column: 1 / -1; margin: 0; padding-top: 13px; border-top: 1px solid var(--line); color: var(--muted); font-size: .7rem; }

[data-theme="light"] .hero { background: radial-gradient(ellipse at 78% 28%, var(--page-glow), transparent 36%), var(--surface); }
[data-theme="light"] .service-card { background: color-mix(in srgb, var(--surface) 94%, var(--card-accent)); }

@media (max-width: 900px) {
  .service-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .service-card { min-height: 275px; }
}
@media (max-width: 640px) {
  .shell { width: min(100% - 32px, 480px); }
  .header-inner { min-height: 68px; }
  .brand-mark { width: 39px; height: 39px; }
  .brand-copy strong { font-size: .85rem; }.brand-copy span { font-size: .68rem; }
  .theme-button { min-height: 41px; gap: 6px; padding: 6px 10px; }.theme-label { font-size: .73rem; }
  .hero-inner { min-height: auto; grid-template-columns: 1fr; gap: 3px; padding-block: 44px 12px; }
  .hero h1 { font-size: clamp(2.35rem, 12vw, 3.55rem); }
  .hero-description { max-width: 430px; font-size: .91rem; }
  .hero-art { min-height: 230px; }
  .hero-symbol { width: 112px; height: 112px; border-radius: 34px; }.hero-symbol svg { width: 68px; }
  .orbit-outer { width: 230px; }.orbit-inner { width: 190px; }
  .chip-book { top: 13%; right: 7%; }.chip-ai { bottom: 12%; left: 5%; }
  .hero-bottom { padding-bottom: 14px; font-size: .63rem; }
  .services { padding-block: 48px 56px; }
  .section-heading { display: block; margin-bottom: 20px; }.section-note { margin-top: 7px; }
  .service-grid { gap: 12px; }
  .service-card { min-height: 270px; padding: 16px; border-radius: 17px; }
  .card-icon { width: 45px; height: 45px; border-radius: 14px; }.card-content { margin-top: 19px; }.card-title { font-size: .96rem; }.card-description { font-size: .75rem; }
  .footer-inner { grid-template-columns: 1fr; gap: 15px; }.footer-status { grid-row: 2; }.copyright { grid-row: 3; }
}
@media (max-width: 380px) {
  .service-grid { grid-template-columns: 1fr; }
  .service-card { min-height: 240px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}