@import url("https://fonts.googleapis.com/css2?family=Vazirmatn:wght@300;400;500;600;700;800;900&display=swap");

:root {
  --bg: #080a0e;
  --surface: rgba(18, 21, 28, .82);
  --surface-strong: #12151c;
  --surface-soft: rgba(255,255,255,.035);
  --text: #f5f2eb;
  --muted: #aaa9ad;
  --line: rgba(255,255,255,.10);
  --gold: #d4a967;
  --gold-2: #f0c989;
  --gold-soft: rgba(212,169,103,.16);
  --success: #85d5ac;
  --shadow: 0 28px 80px rgba(0,0,0,.42);
  --radius: 28px;
  --font: "Vazirmatn", Tahoma, "Noto Sans Arabic", "Segoe UI", Arial, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  overflow-x: hidden;
  background:
    radial-gradient(circle at 16% 10%, rgba(212,169,103,.08), transparent 34%),
    radial-gradient(circle at 88% 24%, rgba(119,91,173,.09), transparent 28%),
    var(--bg);
  color: var(--text);
  font-family: var(--font);
  line-height: 1.75;
  text-rendering: optimizeLegibility;
}

body, button, a { -webkit-tap-highlight-color: transparent; }
a { color: inherit; text-decoration: none; }
button { font: inherit; }
svg { width: 1.25em; height: 1.25em; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
img { max-width: 100%; display: block; }

.skip-link { position: fixed; top: -80px; inset-inline-start: 18px; z-index: 999; background: var(--gold); color: #111; padding: 10px 16px; border-radius: 12px; transition: .2s; }
.skip-link:focus { top: 18px; }
.shell { width: min(1180px, calc(100% - 40px)); margin-inline: auto; }

.ambient { position: fixed; border-radius: 999px; filter: blur(90px); pointer-events: none; z-index: -4; opacity: .65; }
.ambient-one { width: 360px; height: 360px; background: rgba(212,169,103,.11); top: 80px; inset-inline-start: -190px; }
.ambient-two { width: 420px; height: 420px; background: rgba(76,66,123,.12); top: 38%; inset-inline-end: -220px; }
.grid-overlay { position: fixed; inset: 0; pointer-events: none; z-index: -5; background-image: linear-gradient(rgba(255,255,255,.015) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.015) 1px, transparent 1px); background-size: 52px 52px; mask-image: linear-gradient(to bottom, #000, transparent 82%); }
.noise { position: fixed; inset: 0; pointer-events: none; z-index: -2; opacity: .045; background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.65'/%3E%3C/svg%3E"); }

.topbar { min-height: 92px; display: flex; align-items: center; justify-content: space-between; gap: 24px; position: relative; z-index: 20; }
.brand { display: inline-flex; align-items: center; gap: 12px; min-width: 0; }
.brand-mark { width: 46px; height: 46px; border-radius: 15px; display: grid; place-items: center; color: #111; background: linear-gradient(135deg, var(--gold-2), #9e7139); font-weight: 900; letter-spacing: -.06em; box-shadow: 0 10px 32px rgba(212,169,103,.18); }
.brand-copy { display: grid; line-height: 1.25; }
.brand-copy b { font-size: .98rem; }
.brand-copy small { color: var(--muted); margin-top: 3px; }
.top-actions { display: flex; align-items: center; gap: 10px; }
.language-switch { display: flex; align-items: center; max-width: min(65vw, 480px); overflow-x: auto; scrollbar-width: none; padding: 4px; border: 1px solid var(--line); background: rgba(255,255,255,.025); border-radius: 16px; }
.language-switch::-webkit-scrollbar { display: none; }
.lang-btn { border: 0; white-space: nowrap; background: transparent; color: var(--muted); padding: 8px 11px; border-radius: 11px; cursor: pointer; font-size: .82rem; transition: .22s; }
.lang-btn:hover { color: var(--text); }
.lang-btn.is-active { background: var(--gold-soft); color: var(--gold-2); box-shadow: inset 0 0 0 1px rgba(212,169,103,.2); }
.icon-btn { width: 43px; height: 43px; flex: 0 0 auto; border: 1px solid var(--line); border-radius: 14px; color: var(--text); background: rgba(255,255,255,.025); display: grid; place-items: center; cursor: pointer; transition: .22s; }
.icon-btn:hover { border-color: rgba(212,169,103,.45); color: var(--gold-2); transform: translateY(-2px); }

.hero { min-height: calc(100vh - 92px); display: grid; grid-template-columns: minmax(0, 1fr) minmax(460px, .92fr); gap: clamp(44px, 7vw, 94px); align-items: center; padding-block: 48px 90px; }
.hero-copy { min-width: 0; }
.eyebrow, .section-kicker { color: var(--gold-2); font-size: .78rem; letter-spacing: .06em; font-weight: 800; text-transform: uppercase; }
.eyebrow { display: inline-flex; align-items: center; gap: 10px; padding: 7px 12px; border: 1px solid rgba(212,169,103,.22); background: var(--gold-soft); border-radius: 999px; }
.pulse { width: 7px; height: 7px; border-radius: 50%; background: var(--success); box-shadow: 0 0 0 5px rgba(133,213,172,.08); }
.hero h1 { margin: 22px 0 16px; font-size: clamp(2.6rem, 5.8vw, 5.6rem); line-height: 1.08; letter-spacing: -.055em; font-weight: 500; }
.hero h1 strong { color: var(--text); font-weight: 900; }
.hero-role { margin: 0 0 14px; color: var(--gold-2); font-weight: 700; font-size: clamp(1rem, 1.8vw, 1.25rem); }
.hero-lead { max-width: 700px; margin: 0; color: var(--muted); font-size: 1.03rem; }
.hero-cta { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.btn { min-height: 50px; display: inline-flex; align-items: center; justify-content: center; gap: 10px; padding: 0 19px; border-radius: 15px; font-weight: 800; border: 1px solid transparent; transition: .22s; }
.btn:hover { transform: translateY(-2px); }
.btn-primary { color: #15110b; background: linear-gradient(135deg, var(--gold-2), #b58345); box-shadow: 0 14px 34px rgba(212,169,103,.18); }
.btn-ghost { border-color: var(--line); background: rgba(255,255,255,.025); }
.btn-ghost:hover { border-color: rgba(212,169,103,.35); color: var(--gold-2); }
.quick-contact { display: flex; flex-wrap: wrap; gap: 10px 18px; margin-top: 24px; }
.quick-contact a { display: inline-flex; align-items: center; gap: 9px; color: var(--muted); font-size: .88rem; transition: .2s; direction: ltr; }
.quick-contact a:hover { color: var(--text); }
.contact-icon { width: 27px; height: 27px; display: grid; place-items: center; color: var(--gold-2); border: 1px solid rgba(212,169,103,.25); border-radius: 9px; }

.card-stage { perspective: 1600px; }
.business-card { position: relative; overflow: hidden; min-height: 640px; padding: 18px; border-radius: 34px; border: 1px solid rgba(255,255,255,.14); background: linear-gradient(145deg, rgba(22,25,32,.98), rgba(9,11,15,.98)); box-shadow: var(--shadow); isolation: isolate; transform: rotateY(-2.8deg) rotateX(1deg); transform-origin: center; }
html[dir="rtl"] .business-card { transform: rotateY(2.8deg) rotateX(1deg); }
.business-card::after { content: ""; position: absolute; inset: 0; border-radius: inherit; padding: 1px; background: linear-gradient(125deg, rgba(240,201,137,.45), transparent 30%, rgba(255,255,255,.08) 65%, rgba(212,169,103,.18)); mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0); mask-composite: exclude; pointer-events: none; z-index: 5; }
.card-glow { position: absolute; width: 320px; height: 320px; border-radius: 50%; background: rgba(212,169,103,.14); filter: blur(85px); top: -130px; inset-inline-end: -110px; z-index: -1; }
.card-pattern { position: absolute; inset: 0; opacity: .12; background: repeating-radial-gradient(circle at 0 100%, transparent 0 22px, rgba(212,169,103,.25) 23px 24px); pointer-events: none; z-index: -1; }
.card-header { min-height: 44px; display: flex; justify-content: space-between; align-items: center; gap: 12px; padding: 0 8px 10px; }
.micro-brand { font-size: .68rem; letter-spacing: .18em; color: var(--muted); direction: ltr; }
.verified { display: inline-flex; align-items: center; gap: 6px; color: var(--gold-2); font-size: .73rem; }
.verified svg { width: 18px; height: 18px; border-radius: 50%; background: var(--gold-soft); padding: 2px; }
.portrait-wrap { position: relative; overflow: hidden; height: 390px; border-radius: 25px; background: #1b1d22; }
.portrait-wrap img { width: 100%; height: 100%; object-fit: cover; object-position: center 29%; filter: saturate(.88) contrast(1.02); }
.portrait-shade { position: absolute; inset: 0; background: linear-gradient(to top, rgba(8,10,14,.96) 0, rgba(8,10,14,.56) 28%, transparent 62%); }
.portrait-copy { position: absolute; inset-inline: 22px; bottom: 19px; }
.portrait-copy small { color: var(--gold-2); font-size: .7rem; letter-spacing: .12em; }
.portrait-copy h2 { margin: 4px 0 0; font-size: clamp(1.55rem, 4vw, 2.25rem); line-height: 1.2; }
.portrait-copy p { margin: 5px 0 0; color: #cbc7c0; font-size: .9rem; }
.card-footer { display: grid; grid-template-columns: minmax(0, 1fr) 142px; align-items: center; gap: 18px; padding: 18px 7px 4px; }
.card-contact { min-width: 0; display: grid; gap: 4px; }
.card-contact span { color: var(--gold-2); font-weight: 800; }
.card-contact a { color: var(--muted); font-size: .79rem; overflow-wrap: anywhere; direction: ltr; text-align: start; }
.card-contact a:hover { color: var(--text); }
.qr-wrap { display: grid; justify-items: center; text-align: center; gap: 4px; }
.qr-frame { padding: 7px; background: #f8f6f0; border-radius: 16px; box-shadow: 0 0 0 2px rgba(212,169,103,.55), 0 12px 30px rgba(0,0,0,.22); }
.qr-frame img { width: 108px; height: 108px; }
.qr-wrap small { color: var(--muted); font-size: .66rem; line-height: 1.35; }
.qr-wrap b { color: var(--gold-2); font-size: .62rem; font-weight: 700; }
.card-tools { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; margin-top: 18px; }
.card-tools button, .card-tools a { border: 1px solid var(--line); color: var(--muted); background: rgba(255,255,255,.025); border-radius: 13px; padding: 9px 13px; display: inline-flex; align-items: center; gap: 8px; cursor: pointer; transition: .2s; font-size: .82rem; }
.card-tools button:hover, .card-tools a:hover { color: var(--gold-2); border-color: rgba(212,169,103,.35); }

.stats { display: grid; grid-template-columns: repeat(4, 1fr); border: 1px solid var(--line); border-radius: var(--radius); background: rgba(255,255,255,.022); overflow: hidden; }
.stats article { min-height: 150px; padding: 28px; display: flex; flex-direction: column; justify-content: center; border-inline-end: 1px solid var(--line); }
.stats article:last-child { border-inline-end: 0; }
.stats strong { color: var(--gold-2); font-size: 2.2rem; line-height: 1; }
.stats span { margin-top: 12px; color: var(--muted); font-size: .9rem; }

.section { padding-block: 118px 20px; }
.section-heading { max-width: 820px; }
.section-heading.compact { max-width: 460px; }
.section-heading h2, .contact-copy h2, .publications h2 { margin: 12px 0 15px; font-size: clamp(2rem, 4vw, 3.7rem); line-height: 1.2; letter-spacing: -.04em; }
.section-heading p, .contact-copy p, .publications p { color: var(--muted); margin: 0; }
.expertise-grid { margin-top: 38px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.expertise-card { position: relative; overflow: hidden; min-height: 300px; padding: 22px 24px 25px; border: 1px solid var(--line); border-radius: 22px; background: linear-gradient(150deg, rgba(255,255,255,.052), rgba(255,255,255,.014)); transition: transform .28s ease, border-color .28s ease, box-shadow .28s ease; isolation: isolate; }
.expertise-card::before { content: ""; position: absolute; width: 150px; height: 150px; inset-inline-end: -52px; top: -58px; border-radius: 50%; background: rgba(212,169,103,.11); filter: blur(35px); z-index: -1; opacity: .55; transition: .28s ease; }
.expertise-card:hover { transform: translateY(-7px); border-color: rgba(212,169,103,.42); box-shadow: 0 22px 48px rgba(0,0,0,.22); }
.expertise-card:hover::before { opacity: .95; transform: scale(1.12); }
.expertise-card__top { min-height: 128px; display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; }
.expertise-card .number { color: var(--gold-2); font-size: .78rem; font-weight: 800; letter-spacing: .15em; padding-top: 5px; }
.expertise-icon { width: 118px; height: 118px; flex: 0 0 118px; object-fit: contain; filter: drop-shadow(0 12px 26px rgba(212,169,103,.15)); transition: transform .28s ease, filter .28s ease; }
.expertise-card:hover .expertise-icon { transform: translateY(-3px) scale(1.04); filter: drop-shadow(0 14px 32px rgba(212,169,103,.26)); }
.expertise-card h3 { margin: 18px 0 9px; font-size: 1.18rem; }
.expertise-card p { margin: 0; color: var(--muted); font-size: .9rem; }

.split-section { display: grid; grid-template-columns: .75fr 1.25fr; gap: 80px; align-items: start; }
.timeline { border-inline-start: 1px solid var(--line); padding-inline-start: 28px; }
.timeline-item { position: relative; display: grid; grid-template-columns: 145px 1fr; gap: 20px; padding: 0 0 34px; }
.timeline-item::before { content: ""; position: absolute; inset-inline-start: -34px; top: 7px; width: 11px; height: 11px; border-radius: 50%; background: #55565b; box-shadow: 0 0 0 6px var(--bg); }
.timeline-item.featured::before { background: var(--gold-2); box-shadow: 0 0 0 6px var(--bg), 0 0 22px rgba(212,169,103,.38); }
.timeline-date { color: var(--gold-2); font-size: .78rem; font-weight: 800; }
.timeline-item h3 { margin: 0 0 5px; font-size: 1.08rem; }
.timeline-item p { margin: 0 0 5px; color: #d2cdc4; }
.timeline-item small { color: var(--muted); }

.education-grid { display: grid; grid-template-columns: 1fr 1.1fr; gap: 18px; margin-top: 38px; }
.degree-column { display: grid; gap: 14px; }
.degree-card, .credential-panel { border: 1px solid var(--line); border-radius: 23px; background: rgba(255,255,255,.025); }
.degree-card { display: grid; grid-template-columns: 80px 1fr; gap: 20px; padding: 24px; }
.degree-card > span { color: var(--gold-2); font-weight: 900; }
.degree-card h3 { margin: 0 0 6px; }
.degree-card p { margin: 0 0 3px; color: #d4d0c8; }
.degree-card small { color: var(--muted); }
.credential-panel { padding: 27px; background: linear-gradient(145deg, rgba(212,169,103,.08), rgba(255,255,255,.02)); }
.credential-panel h3 { margin: 0 0 19px; }
.chips { display: flex; flex-wrap: wrap; gap: 9px; }
.chips span { padding: 8px 11px; border: 1px solid rgba(212,169,103,.20); background: rgba(212,169,103,.07); border-radius: 999px; color: #ded7cc; font-size: .8rem; direction: ltr; }
.language-line { display: flex; justify-content: space-between; gap: 20px; margin-top: 24px; padding-top: 18px; border-top: 1px solid var(--line); color: var(--muted); }
.language-line b { color: var(--text); }

.publications { display: grid; grid-template-columns: 1fr 1fr; gap: 70px; align-items: end; padding-bottom: 110px; }
.publications p { max-width: 600px; }
.contact-section { display: grid; grid-template-columns: .65fr 1.35fr; gap: 70px; align-items: start; padding: 56px; border: 1px solid rgba(212,169,103,.22); border-radius: 32px; background: linear-gradient(135deg, rgba(212,169,103,.095), rgba(255,255,255,.02)); box-shadow: 0 28px 70px rgba(0,0,0,.18); }
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 11px; }
.contact-grid > a, .address-card { min-width: 0; padding: 16px 17px; border: 1px solid var(--line); border-radius: 16px; background: rgba(0,0,0,.14); display: grid; grid-template-columns: 1fr auto; gap: 4px 12px; transition: .2s; }
.contact-grid > a:hover { border-color: rgba(212,169,103,.38); transform: translateY(-2px); }
.contact-grid small, .address-card small { grid-column: 1 / -1; color: var(--gold-2); }
.contact-grid strong, .address-card strong { min-width: 0; overflow-wrap: anywhere; font-size: .86rem; font-weight: 700; }
.contact-grid > a > span { color: var(--gold-2); }
.address-card.wide { grid-column: 1 / -1; }
.footer { min-height: 130px; display: flex; justify-content: space-between; align-items: center; gap: 20px; color: var(--muted); font-size: .82rem; }

.toast { position: fixed; left: 50%; bottom: 24px; transform: translate(-50%, 22px); opacity: 0; pointer-events: none; z-index: 100; padding: 10px 15px; border: 1px solid rgba(212,169,103,.3); border-radius: 13px; background: rgba(18,21,28,.95); color: var(--text); box-shadow: var(--shadow); transition: .25s; }
.toast.show { transform: translate(-50%, 0); opacity: 1; }
.reveal { opacity: 0; transform: translateY(22px); transition: opacity .75s ease, transform .75s ease; }
.reveal.visible { opacity: 1; transform: none; }
.delay-one { transition-delay: .12s; }

html[dir="ltr"] .hero h1, html[dir="ltr"] .section-heading h2, html[dir="ltr"] .contact-copy h2, html[dir="ltr"] .publications h2 { letter-spacing: -.045em; }
html[lang="zh"] body { line-height: 1.7; }
html[lang="zh"] .hero h1 { letter-spacing: -.02em; }
html[lang="ru"] .hero h1 { font-size: clamp(2.25rem, 4.8vw, 4.8rem); }

@media (hover:hover) {
  .business-card { transition: transform .35s ease; }
  .card-stage:hover .business-card { transform: rotateY(0) rotateX(0) translateY(-5px); }
}

@media (max-width: 1050px) {
  .hero { grid-template-columns: 1fr; min-height: auto; padding-top: 55px; }
  .hero-copy { max-width: 850px; }
  .card-stage { width: min(570px, 100%); margin-inline: auto; }
  .business-card, html[dir="rtl"] .business-card { transform: none; }
  .expertise-grid { grid-template-columns: repeat(2, 1fr); }
  .split-section { grid-template-columns: 1fr; gap: 40px; }
  .section-heading.compact { max-width: 780px; }
  .contact-section { grid-template-columns: 1fr; }
}

@media (max-width: 760px) {
  .shell { width: min(100% - 28px, 1180px); }
  .topbar { min-height: 78px; }
  .brand-copy { display: none; }
  .brand-mark { width: 42px; height: 42px; }
  .language-switch { max-width: calc(100vw - 118px); }
  .lang-btn { padding: 7px 9px; }
  .hero { padding-block: 40px 70px; gap: 45px; }
  .hero h1 { font-size: clamp(2.35rem, 13vw, 4rem); }
  .business-card { min-height: 590px; border-radius: 28px; padding: 13px; }
  .portrait-wrap { height: 355px; }
  .card-footer { grid-template-columns: minmax(0, 1fr) 120px; gap: 10px; }
  .qr-frame img { width: 92px; height: 92px; }
  .stats { grid-template-columns: 1fr 1fr; }
  .stats article:nth-child(2) { border-inline-end: 0; }
  .stats article:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .section { padding-top: 88px; }
  .expertise-grid, .education-grid, .publications, .contact-grid { grid-template-columns: 1fr; }
  .expertise-card { min-height: 270px; }
  .expertise-card__top { min-height: 112px; }
  .expertise-icon { width: 104px; height: 104px; flex-basis: 104px; }
  .expertise-card h3 { margin-top: 14px; }
  .timeline-item { grid-template-columns: 1fr; gap: 8px; }
  .publications { gap: 22px; padding-bottom: 80px; }
  .contact-section { padding: 28px 20px; gap: 35px; }
  .address-card.wide { grid-column: auto; }
  .footer { min-height: 110px; flex-direction: column; justify-content: center; text-align: center; gap: 2px; }
}

@media (max-width: 470px) {
  .hero-cta .btn { width: 100%; }
  .quick-contact { display: grid; }
  .business-card { min-height: 560px; }
  .portrait-wrap { height: 335px; }
  .card-footer { grid-template-columns: 1fr 104px; }
  .card-contact a { font-size: .68rem; }
  .qr-frame { padding: 5px; }
  .qr-frame img { width: 80px; height: 80px; }
  .qr-wrap small { font-size: .58rem; }
  .stats article { min-height: 128px; padding: 20px; }
  .stats strong { font-size: 1.8rem; }
  .stats span { font-size: .78rem; }
  .degree-card { grid-template-columns: 1fr; gap: 7px; }
  .language-line { flex-direction: column; gap: 4px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; animation: none !important; }
  .reveal { opacity: 1; transform: none; }
}

@media print {
  @page { size: A4; margin: 12mm; }
  body { background: #fff !important; color: #111 !important; }
  .ambient, .grid-overlay, .noise, .topbar, .card-tools, .stats, main > section:not(.hero), .footer, .toast, .hero-copy { display: none !important; }
  .hero { display: block; min-height: auto; padding: 0; }
  .card-stage { width: 100%; }
  .business-card, html[dir="rtl"] .business-card { width: 165mm; min-height: 100mm; margin: 0 auto; transform: none; print-color-adjust: exact; -webkit-print-color-adjust: exact; }
}