/*
Theme Name: Chista Digital
Theme URI:
Author: Chista
Description: پوستهٔ راست‌چین و فارسی شرکت پژوهش و توسعهٔ فناوری چیستا
Version: 1.0.0
Requires at least: 6.0
Tested up to: 6.8
Requires PHP: 8.0
Text Domain: chista-digital
*/

:root {
  --ink: #f6f3fb;
  --muted: #b7b0c4;
  --subtle: #8b8499;
  --night: #0b0911;
  --panel: #13101b;
  --panel-2: #191422;
  --line: rgba(255,255,255,.1);
  --purple: #a62be0;
  --purple-light: #c56df2;
  --lilac: #e0b2ff;
  --mint: #8de9d5;
  --radius: 24px;
  --container: 1160px;
  color-scheme: dark;
  scroll-behavior: smooth;
}

@font-face {
  font-family: "Chista Noto";
  src: url("assets/fonts/NotoSansArabic-Regular.ttf") format("truetype");
  font-style: normal;
  font-weight: 400;
  font-display: swap;
}
@font-face {
  font-family: "Chista Noto";
  src: url("assets/fonts/NotoSansArabic-Bold.ttf") format("truetype");
  font-style: normal;
  font-weight: 700 900;
  font-display: swap;
}

* { box-sizing: border-box; }
html { background: var(--night); }
body {
  margin: 0;
  background: var(--night);
  color: var(--ink);
  font-family: "Chista Noto", "Vazirmatn", Tahoma, sans-serif;
  font-size: 16px;
  line-height: 1.9;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}
body, button, input, textarea { font-family: "Chista Noto", "Vazirmatn", Tahoma, sans-serif; }
a { color: inherit; text-decoration: none; }
button, a { -webkit-tap-highlight-color: transparent; }
button:focus-visible, a:focus-visible { outline: 3px solid var(--mint); outline-offset: 4px; }
::selection { color: #fff; background: #7620a4; }
.skip-link {
  position: fixed; z-index: 1000; top: 12px; right: 12px; padding: 10px 16px;
  transform: translateY(-160%); border-radius: 12px; background: #fff; color: #17101e;
}
.skip-link:focus { transform: translateY(0); }
.container { width: min(var(--container), calc(100% - 48px)); margin-inline: auto; }
.site-header {
  position: absolute; z-index: 20; inset: 0 0 auto; border-bottom: 1px solid rgba(255,255,255,.07);
  background: rgba(11,9,17,.68); backdrop-filter: blur(18px);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; min-height: 88px; gap: 32px; }
.brand { display: inline-flex; align-items: center; gap: 12px; flex: 0 0 auto; }
.brand-mark { width: 48px; height: 48px; object-fit: contain; }
.brand-copy { display: grid; line-height: 1.45; }
.brand-name { font-size: 19px; font-weight: 900; letter-spacing: -.04em; }
.brand-tagline { color: var(--muted); font-size: 10px; }
.site-nav { display: flex; align-items: center; gap: clamp(18px, 3vw, 38px); }
.site-nav a { color: #c9c3d1; font-size: 13px; transition: color .2s ease; }
.site-nav a:hover { color: #fff; }
.header-cta { padding: 10px 18px; border: 1px solid rgba(197,109,242,.55); border-radius: 999px; color: #f4dcff !important; }
.menu-toggle { display: none; width: 44px; height: 44px; border: 1px solid var(--line); border-radius: 14px; background: var(--panel); color: var(--ink); }

.hero {
  position: relative; overflow: hidden; min-height: 760px; padding: 174px 0 92px;
  background:
    radial-gradient(ellipse at 16% 36%, rgba(100,35,139,.19), transparent 36%),
    radial-gradient(ellipse at 82% 47%, rgba(112,32,155,.21), transparent 34%),
    linear-gradient(180deg, #100b18 0%, var(--night) 100%);
}
.hero::before {
  position: absolute; inset: 0; content: ""; opacity: .17; pointer-events: none;
  background-image: linear-gradient(rgba(255,255,255,.045) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.045) 1px, transparent 1px);
  background-size: 62px 62px; mask-image: linear-gradient(90deg, transparent, #000 32%, #000 78%, transparent);
}
.hero::after { position: absolute; inset: auto 0 0; height: 1px; content: ""; background: linear-gradient(90deg, transparent, rgba(197,109,242,.5), transparent); }
.hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: 1.04fr .96fr; align-items: center; gap: 72px; }
.hero-copy { max-width: 660px; }
.eyebrow { display: inline-flex; align-items: center; gap: 10px; margin: 0 0 22px; color: #e2b8f6; font-size: 12px; font-weight: 700; letter-spacing: .02em; }
.eyebrow::before { width: 7px; height: 7px; content: ""; border-radius: 50%; background: var(--mint); box-shadow: 0 0 18px rgba(141,233,213,.8); }
.hero h1 { max-width: 700px; margin: 0; font-size: clamp(39px, 4.2vw, 58px); line-height: 1.48; font-weight: 900; letter-spacing: -.055em; }
.hero h1 span { color: var(--purple-light); background: linear-gradient(100deg, #d993ff, #a532db 72%); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.hero-lead { max-width: 600px; margin: 22px 0 0; color: #c0b9ca; font-size: 16px; line-height: 2.1; }
.hero-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; margin-top: 34px; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 50px; gap: 9px; padding: 11px 21px; border: 1px solid transparent; border-radius: 14px; font-size: 13px; font-weight: 700; transition: transform .2s ease, border-color .2s ease, background .2s ease; }
.button:hover { transform: translateY(-2px); }
.button-primary { color: #fff; background: linear-gradient(115deg, #9c28d0, #6f18a1); box-shadow: 0 12px 32px rgba(125,24,173,.24); }
.button-primary:hover { background: linear-gradient(115deg, #b540e7, #7d22ad); }
.button-outline { border-color: var(--line); color: #ece7f1; background: rgba(255,255,255,.025); }
.button-outline:hover { border-color: rgba(197,109,242,.55); }
.hero-notes { display: flex; align-items: center; gap: 22px; margin-top: 38px; color: #aaa3b4; font-size: 11px; }
.hero-notes span { display: inline-flex; align-items: center; gap: 8px; }
.hero-notes span::before { width: 4px; height: 4px; content: ""; border-radius: 50%; background: var(--purple-light); }
.hero-visual { position: relative; display: grid; place-items: center; min-height: 430px; }
.visual-orbit { position: absolute; width: min(400px, 100%); aspect-ratio: 1; border: 1px solid rgba(196,109,242,.14); border-radius: 50%; box-shadow: inset 0 0 70px rgba(130,36,170,.08), 0 0 90px rgba(130,36,170,.07); }
.visual-orbit::before, .visual-orbit::after { position: absolute; inset: 11%; content: ""; border: 1px solid rgba(196,109,242,.12); border-radius: 50%; }
.visual-orbit::after { inset: 23%; }
.visual-core { position: relative; display: grid; place-items: center; width: 205px; height: 205px; border: 1px solid rgba(222,170,246,.2); border-radius: 48px; background: linear-gradient(145deg, rgba(49,24,65,.9), rgba(20,15,28,.96)); box-shadow: 0 28px 100px rgba(0,0,0,.4), inset 0 1px rgba(255,255,255,.08); transform: rotate(-7deg); }
.visual-core img { width: 132px; height: 150px; object-fit: contain; transform: rotate(7deg); filter: drop-shadow(0 10px 28px rgba(166,43,224,.25)); }
.visual-chip { position: absolute; display: flex; align-items: center; gap: 10px; padding: 12px 15px; border: 1px solid rgba(255,255,255,.1); border-radius: 15px; background: rgba(21,17,28,.9); box-shadow: 0 14px 35px rgba(0,0,0,.28); color: #e7e0ec; font-size: 11px; backdrop-filter: blur(12px); }
.visual-chip b { display: grid; place-items: center; width: 31px; height: 31px; border-radius: 10px; background: rgba(166,43,224,.16); color: #d8a0f4; font-size: 14px; }
.chip-one { top: 37px; right: 0; }
.chip-two { bottom: 52px; left: -10px; }
.chip-three { bottom: 8px; right: 26px; }
.visual-dot { position: absolute; top: 84px; left: 44px; width: 8px; height: 8px; border-radius: 50%; background: var(--mint); box-shadow: 0 0 22px var(--mint); }

.section { padding: 112px 0; }
.section-head { max-width: 660px; margin: 0 auto 52px; text-align: center; }
.section-kicker { margin: 0 0 10px; color: var(--purple-light); font-size: 12px; font-weight: 700; }
.section-title { margin: 0; font-size: clamp(29px, 3.5vw, 44px); line-height: 1.55; font-weight: 900; letter-spacing: -.045em; }
.section-description { margin: 12px 0 0; color: var(--muted); font-size: 14px; }
.services-section { background: linear-gradient(180deg, #0b0911, #100d16 100%); }
.service-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.service-card { position: relative; min-height: 260px; padding: 27px 26px 25px; overflow: hidden; border: 1px solid var(--line); border-radius: 21px; background: linear-gradient(145deg, rgba(26,21,34,.94), rgba(17,14,23,.95)); transition: transform .25s ease, border-color .25s ease, background .25s ease; }
.service-card:hover { transform: translateY(-5px); border-color: rgba(197,109,242,.38); background: linear-gradient(145deg, #20162b, #15111d); }
.service-card::after { position: absolute; inset: auto -38px -72px auto; width: 150px; height: 150px; content: ""; border-radius: 50%; background: rgba(145,39,190,.08); filter: blur(8px); }
.service-icon { display: grid; place-items: center; width: 48px; height: 48px; margin-bottom: 20px; border: 1px solid rgba(196,109,242,.22); border-radius: 15px; background: rgba(156,40,208,.11); color: #d08ff0; }
.service-icon svg { width: 23px; height: 23px; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
.service-card h3 { margin: 0; font-size: 17px; font-weight: 800; }
.service-card p { margin: 10px 0 0; color: #b8b1c2; font-size: 13px; line-height: 2.05; }
.service-tags { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 17px; }
.service-tags span { padding: 3px 9px; border: 1px solid rgba(255,255,255,.08); border-radius: 999px; color: #c4bdce; font-size: 11px; }

.insight-section { padding-top: 22px; }
.insight-panel { position: relative; display: grid; grid-template-columns: .88fr 1.12fr; gap: 64px; padding: clamp(30px, 5vw, 64px); overflow: hidden; border: 1px solid rgba(197,109,242,.18); border-radius: 30px; background: radial-gradient(circle at 88% 0%, rgba(135,37,180,.2), transparent 32%), linear-gradient(125deg, #171120, #100d16 68%); }
.insight-panel::before { position: absolute; top: -125px; left: -110px; width: 290px; height: 290px; content: ""; border: 1px solid rgba(197,109,242,.13); border-radius: 50%; box-shadow: 0 0 0 30px rgba(197,109,242,.025), 0 0 0 60px rgba(197,109,242,.02); }
.insight-copy, .insight-list { position: relative; z-index: 1; }
.insight-copy .section-kicker { margin-bottom: 12px; }
.insight-copy h2 { margin: 0; font-size: clamp(28px, 3.4vw, 42px); line-height: 1.6; letter-spacing: -.045em; }
.insight-copy p { margin: 15px 0 0; color: var(--muted); font-size: 13px; }
.insight-list { display: grid; gap: 13px; align-content: center; }
.insight-row { display: grid; grid-template-columns: 44px 1fr; align-items: start; gap: 14px; padding: 16px 0; border-bottom: 1px solid var(--line); }
.insight-row:last-child { border-bottom: 0; }
.insight-num { color: #cf92ed; font-size: 12px; font-weight: 700; }
.insight-row h3 { margin: 0; font-size: 14px; }
.insight-row p { margin: 4px 0 0; color: #b2aabc; font-size: 12px; }

.domains-section { background: #0e0b14; }
.domain-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 13px; }
.domain-card { min-height: 174px; padding: 22px; border: 1px solid var(--line); border-radius: 18px; background: rgba(255,255,255,.025); }
.domain-card span { display: block; margin-bottom: 16px; color: var(--mint); font-size: 11px; }
.domain-card h3 { margin: 0; font-size: 15px; }
.domain-card p { margin: 8px 0 0; color: #b8b1c2; font-size: 12px; line-height: 1.9; }

.approach-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 0; margin-top: 50px; }
.approach-step { position: relative; padding: 0 24px; }
.approach-step:first-child { padding-right: 0; }
.approach-step:last-child { padding-left: 0; }
.approach-step::after { position: absolute; top: 22px; left: 0; width: calc(100% - 68px); height: 1px; content: ""; background: linear-gradient(90deg, rgba(197,109,242,.42), rgba(255,255,255,.08)); }
.step-number { position: relative; z-index: 1; display: grid; place-items: center; width: 44px; height: 44px; border: 1px solid rgba(197,109,242,.4); border-radius: 14px; background: #171020; color: #e1b0f6; font-size: 13px; font-weight: 700; }
.approach-step h3 { margin: 17px 0 6px; font-size: 14px; }
.approach-step p { margin: 0; color: #b8b1c2; font-size: 12px; }

.cooperation-section { padding-top: 18px; }
.cooperation-panel { position: relative; display: flex; align-items: center; justify-content: space-between; gap: 36px; padding: clamp(28px, 5vw, 58px); overflow: hidden; border: 1px solid rgba(217,154,244,.2); border-radius: 28px; background: linear-gradient(105deg, #25132f, #17101f 60%, #111019); }
.cooperation-panel::after { position: absolute; top: -180px; left: 25%; width: 340px; height: 340px; content: ""; border-radius: 50%; background: rgba(142,36,185,.15); filter: blur(38px); }
.cooperation-copy, .cooperation-mark { position: relative; z-index: 1; }
.cooperation-copy { max-width: 650px; }
.cooperation-copy h2 { margin: 0; font-size: clamp(25px, 3.1vw, 38px); line-height: 1.55; }
.cooperation-copy p { margin: 10px 0 0; color: #c2b9cc; font-size: 13px; }
.cooperation-mark { display: grid; place-items: center; flex: 0 0 96px; width: 96px; height: 96px; border: 1px solid rgba(255,255,255,.11); border-radius: 28px; background: rgba(255,255,255,.04); }
.cooperation-mark img { width: 58px; height: 68px; object-fit: contain; }

.site-footer { padding: 38px 0 25px; border-top: 1px solid var(--line); background: #09070d; }
.footer-main { display: flex; align-items: center; justify-content: space-between; gap: 28px; }
.footer-brand .brand-mark { width: 43px; height: 43px; }
.footer-note { max-width: 470px; margin: 0; color: #9d96a7; font-size: 11px; }
.footer-note a { display: inline-block; margin-top: 5px; color: #d9a5f1; }
.footer-bottom { display: flex; justify-content: space-between; gap: 16px; margin-top: 30px; padding-top: 17px; border-top: 1px solid rgba(255,255,255,.07); color: #777080; font-size: 10px; }
.footer-bottom p { margin: 0; }
.footer-reg { direction: rtl; }

.error-404 { padding: 180px 0 100px; }
.error-404 h1 { font-size: 40px; }
.error-404 p { color: var(--muted); }

@media (max-width: 980px) {
  .hero { min-height: auto; padding-top: 154px; }
  .hero-grid { grid-template-columns: 1fr .82fr; gap: 35px; }
  .hero-visual { min-height: 370px; }
  .visual-orbit { width: 310px; }
  .visual-core { width: 170px; height: 170px; border-radius: 40px; }
  .visual-core img { width: 110px; height: 126px; }
  .service-grid { grid-template-columns: repeat(2,1fr); }
  .domain-grid { grid-template-columns: repeat(2,1fr); }
  .insight-panel { gap: 35px; }
}
@media (max-width: 700px) {
  .container { width: min(100% - 36px, var(--container)); }
  .header-inner { min-height: 74px; }
  .brand-mark { width: 42px; height: 42px; }
  .brand-name { font-size: 17px; }
  .menu-toggle { display: grid; place-items: center; }
  .menu-toggle span, .menu-toggle span::before, .menu-toggle span::after { display: block; width: 18px; height: 2px; border-radius: 2px; background: currentColor; }
  .menu-toggle span { position: relative; }
  .menu-toggle span::before, .menu-toggle span::after { position: absolute; content: ""; right: 0; }
  .menu-toggle span::before { top: -6px; }
  .menu-toggle span::after { top: 6px; }
  .site-nav { position: absolute; top: calc(100% + 1px); right: 18px; left: 18px; display: grid; gap: 0; padding: 8px 16px; border: 1px solid var(--line); border-radius: 16px; background: rgba(17,13,23,.98); box-shadow: 0 18px 35px rgba(0,0,0,.35); opacity: 0; visibility: hidden; transform: translateY(-7px); transition: .2s ease; }
  .site-nav.is-open { opacity: 1; visibility: visible; transform: translateY(0); }
  .site-nav a { padding: 11px 5px; border-bottom: 1px solid rgba(255,255,255,.06); }
  .site-nav a:last-child { margin: 8px 0 4px; border: 1px solid rgba(197,109,242,.4); text-align: center; }
  .hero { padding: 132px 0 70px; }
  .hero-grid { grid-template-columns: 1fr; gap: 28px; }
  .hero h1 { font-size: clamp(36px, 10vw, 52px); }
  .hero-lead { font-size: 14px; }
  .hero-actions .button { flex: 1 1 auto; }
  .hero-notes { flex-wrap: wrap; gap: 10px 17px; margin-top: 25px; }
  .hero-visual { min-height: 320px; }
  .visual-orbit { width: 285px; }
  .chip-one { top: 22px; right: 2px; }
  .chip-two { bottom: 35px; left: 0; }
  .chip-three { bottom: 0; right: 8px; }
  .section { padding: 78px 0; }
  .section-head { margin-bottom: 35px; }
  .service-grid { grid-template-columns: 1fr; }
  .service-card { min-height: 0; }
  .insight-section { padding-top: 0; }
  .insight-panel { grid-template-columns: 1fr; gap: 28px; padding: 28px 22px; }
  .domain-grid { grid-template-columns: 1fr 1fr; gap: 9px; }
  .domain-card { min-height: 160px; padding: 17px 14px; }
  .approach-grid { grid-template-columns: 1fr 1fr; gap: 30px 12px; margin-top: 34px; }
  .approach-step, .approach-step:first-child, .approach-step:last-child { padding: 0; }
  .approach-step::after { display: none; }
  .cooperation-section { padding-top: 0; }
  .cooperation-panel { align-items: flex-start; flex-direction: column-reverse; gap: 21px; }
  .cooperation-mark { width: 70px; height: 70px; flex-basis: 70px; border-radius: 21px; }
  .cooperation-mark img { width: 43px; height: 50px; }
  .footer-main, .footer-bottom { align-items: flex-start; flex-direction: column; }
  .footer-bottom { gap: 8px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; }
}