:root {
  --bg: #0b0b0d;
  --bg-2: #121216;
  --card: #17171c;
  --line: #26262d;
  --text: #ececf1;
  --muted: #9a9aa6;
  --accent: #ff6a13;
  --accent-2: #ff9a3c;
  --radius: 18px;
  --shadow: 0 20px 60px rgba(0, 0, 0, .45);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body {
  font-family: "Vazirmatn", Tahoma, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.9;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { font: inherit; cursor: pointer; }

.container { width: min(1180px, 100% - 32px); margin-inline: auto; }
.narrow { width: min(820px, 100% - 32px); }
.accent { color: var(--accent); }
.skip { position: absolute; top: -50px; right: 16px; background: var(--accent); padding: 8px 14px; border-radius: 8px; z-index: 100; }
.skip:focus { top: 12px; }

.eyebrow { color: var(--accent); font-weight: 600; font-size: .9rem; letter-spacing: .5px; margin-bottom: 8px; }
h1, h2, h3 { line-height: 1.35; }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.4rem); font-weight: 800; margin-bottom: 18px; }
.lead { color: var(--muted); font-size: 1.08rem; }

.btn {
  display: inline-flex; align-items: center; gap: 8px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #111; font-weight: 800; padding: 12px 26px; border-radius: 999px;
  box-shadow: 0 8px 30px rgba(255, 106, 19, .35);
  transition: transform .25s, box-shadow .25s;
}
.btn:hover { transform: translateY(-3px); box-shadow: 0 14px 40px rgba(255, 106, 19, .5); }
.btn--ghost { background: transparent; color: var(--text); border: 1px solid var(--line); box-shadow: none; }
.btn--ghost:hover { border-color: var(--accent); color: var(--accent); box-shadow: none; }
.btn--sm { padding: 6px 18px; }

/* ===== nav ===== */
.nav {
  position: fixed; inset: 0 0 auto; z-index: 50;
  transition: background .3s, border-color .3s;
  border-bottom: 1px solid transparent;
}
.nav.is-scrolled { background: rgba(11, 11, 13, .82); backdrop-filter: blur(14px); border-color: var(--line); }
.nav__inner { display: flex; align-items: center; justify-content: space-between; height: 72px; }
.brand { display: flex; align-items: center; gap: 10px; font-size: 1.1rem; }
.brand__mark { display: grid; place-items: center; width: 40px; height: 40px; border-radius: 10px; background: var(--accent); color: #111; font-weight: 900; font-family: system-ui, sans-serif; }
.brand b { color: var(--accent); }
.nav__menu { display: flex; align-items: center; gap: 26px; }
.nav__menu a:not(.btn) { color: var(--muted); transition: color .2s; }
.nav__menu a:not(.btn):hover { color: var(--text); }
.nav__toggle { display: none; background: none; border: 0; width: 40px; height: 40px; flex-direction: column; justify-content: center; gap: 5px; }
.nav__toggle span { display: block; height: 2px; width: 24px; background: var(--text); margin-inline: auto; transition: .3s; }

/* ===== hero ===== */
.hero { position: relative; min-height: 100vh; display: flex; align-items: center; padding: 110px 0 60px; overflow: hidden; }
.hero__glow {
  position: absolute; inset: auto; top: -20%; left: -10%; width: 70vw; height: 70vw;
  background: radial-gradient(circle, rgba(255, 106, 19, .22), transparent 60%);
  filter: blur(40px); animation: float 12s ease-in-out infinite;
}
.hero::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image: linear-gradient(var(--line) 1px, transparent 1px), linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 60px 60px; opacity: .25;
  mask-image: radial-gradient(circle at 50% 40%, #000, transparent 70%);
}
.hero__inner { position: relative; z-index: 1; display: grid; grid-template-columns: 1.15fr .85fr; gap: 50px; align-items: center; }
.hero h1 { font-size: clamp(2.6rem, 7vw, 5rem); font-weight: 900; }
.hero__en { color: var(--muted); font-family: system-ui, sans-serif; margin-bottom: 10px; }
.hero__typed { font-size: 1.3rem; font-weight: 600; min-height: 2.2em; margin-bottom: 10px; }
.typed { color: var(--accent-2); }
.cursor { color: var(--accent); animation: blink 1s steps(1) infinite; }
.hero__cta { display: flex; flex-wrap: wrap; gap: 14px; margin: 28px 0; }
.socials { display: flex; gap: 12px; }
.socials a {
  display: grid; place-items: center; width: 44px; height: 44px; border-radius: 12px;
  border: 1px solid var(--line); background: var(--card); transition: .25s;
}
.socials a:hover { border-color: var(--accent); transform: translateY(-3px); }
.socials svg { width: 20px; height: 20px; fill: var(--text); }

.hero__photo { position: relative; }
.hero__photo img {
  border-radius: 28px; aspect-ratio: 3/4; object-fit: cover; object-position: center 12%; width: 100%;
  box-shadow: var(--shadow), 0 0 0 1px var(--line);
}
.hero__photo::before {
  content: ""; position: absolute; inset: -12px; border-radius: 34px; z-index: -1;
  background: linear-gradient(135deg, var(--accent), transparent 50%, var(--accent-2));
  opacity: .5; filter: blur(18px);
}
.badge {
  position: absolute; background: rgba(23, 23, 28, .9); backdrop-filter: blur(8px);
  border: 1px solid var(--line); padding: 8px 16px; border-radius: 12px; font-weight: 600; font-size: .9rem;
  animation: float 6s ease-in-out infinite;
}
.badge--a { top: 10%; right: -18px; }
.badge--b { bottom: 12%; left: -18px; color: var(--accent-2); animation-delay: -3s; }

/* ===== stats ===== */
.stats { border-block: 1px solid var(--line); background: var(--bg-2); }
.stats__grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.stat { padding: 34px 12px; text-align: center; border-left: 1px solid var(--line); }
.stat:last-child { border-left: 0; }
.stat b { display: block; font-size: 2.6rem; font-weight: 900; color: var(--accent); }
.stat span { color: var(--muted); font-size: .92rem; }

/* ===== sections ===== */
.section { padding: 100px 0; }
.section--alt { background: var(--bg-2); }
.section__head { text-align: center; margin-bottom: 48px; }

.about { text-align: center; }
.about__text p { margin-bottom: 14px; color: #cfcfd8; }
.about__text strong { color: var(--text); }
.chips { justify-content: center; display: flex; flex-wrap: wrap; gap: 10px; margin-top: 20px; }
.chips li { border: 1px solid var(--line); background: var(--card); padding: 6px 14px; border-radius: 999px; font-size: .88rem; }

.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.card {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 28px; transition: transform .3s, border-color .3s;
  position: relative; overflow: hidden;
}
.card::after {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(400px circle at var(--mx, 50%) var(--my, 50%), rgba(255, 106, 19, .12), transparent 40%);
  opacity: 0; transition: opacity .3s; pointer-events: none;
}
.card:hover { transform: translateY(-6px); border-color: rgba(255, 106, 19, .5); }
.card:hover::after { opacity: 1; }
.card__icon { width: 52px; height: 52px; border-radius: 14px; display: grid; place-items: center; background: rgba(255, 106, 19, .12); margin-bottom: 16px; }
.card__icon svg { width: 26px; height: 26px; fill: var(--accent); }
.card h3 { font-size: 1.15rem; margin-bottom: 8px; }
.card p { color: var(--muted); font-size: .95rem; }

.bars { margin-top: 56px; display: grid; gap: 18px; max-width: 760px; margin-inline: auto; }
.bar span { display: block; margin-bottom: 6px; font-weight: 600; }
.bar i { display: block; height: 8px; border-radius: 99px; background: var(--line); position: relative; overflow: hidden; }
.bar i::after {
  content: ""; position: absolute; inset: 0 0 0 auto; width: 0;
  background: linear-gradient(270deg, var(--accent), var(--accent-2)); border-radius: inherit;
  transition: width 1.6s cubic-bezier(.2, .8, .2, 1);
}
.bars.is-visible .bar i::after { width: var(--v); }

.timeline { position: relative; max-width: 820px; margin-inline: auto; padding-right: 30px; }
.timeline::before { content: ""; position: absolute; right: 7px; top: 6px; bottom: 6px; width: 2px; background: linear-gradient(var(--accent), transparent); }
.timeline li { position: relative; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px 26px; margin-bottom: 20px; }
.timeline li::before {
  content: ""; position: absolute; right: -30px; top: 28px; width: 16px; height: 16px; border-radius: 50%;
  background: var(--bg); border: 3px solid var(--accent); box-shadow: 0 0 14px var(--accent);
}
.timeline h3 { font-size: 1.1rem; }
.timeline .org { color: var(--accent-2); font-weight: 600; font-size: .95rem; }
.timeline p:last-child { color: var(--muted); font-size: .95rem; }

.filters { display: flex; justify-content: center; gap: 10px; margin-bottom: 32px; flex-wrap: wrap; }
.filters button { background: var(--card); color: var(--muted); border: 1px solid var(--line); padding: 8px 20px; border-radius: 999px; transition: .2s; }
.filters button.is-active, .filters button:hover { color: #111; background: var(--accent); border-color: var(--accent); }
.works { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.work {
  background: linear-gradient(160deg, var(--card), #111115); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 26px; transition: transform .3s, border-color .3s, opacity .3s;
}
.work:hover { transform: translateY(-5px); border-color: rgba(255, 106, 19, .5); }
.work.is-hidden { display: none; }
.work__tag { font-size: .78rem; color: var(--accent); border: 1px solid rgba(255, 106, 19, .4); padding: 2px 10px; border-radius: 999px; }
.work h3 { margin: 12px 0 6px; font-size: 1.15rem; }
.work h3 a:hover { color: var(--accent); }
.work p { color: var(--muted); font-size: .93rem; }


details { background: var(--card); border: 1px solid var(--line); border-radius: 14px; margin-bottom: 14px; padding: 4px 22px; }
details[open] { border-color: rgba(255, 106, 19, .45); }
summary { cursor: pointer; font-weight: 700; padding: 14px 0; list-style: none; display: flex; justify-content: space-between; }
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; color: var(--accent); font-size: 1.4rem; line-height: 1; }
details[open] summary::after { content: "−"; }
details p { color: var(--muted); padding-bottom: 16px; }

.contact { text-align: center; }
.contact__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 36px; }
.contact__item {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 22px; display: flex; flex-direction: column; gap: 4px; transition: .25s;
}
.contact__item:hover { border-color: var(--accent); transform: translateY(-4px); }
.contact__item b { color: var(--accent); }
.contact__item span { color: var(--muted); word-break: break-all; }

.footer { border-top: 1px solid var(--line); padding: 28px 0; text-align: center; color: var(--muted); font-size: .9rem; }
.footer a { color: var(--accent); }


.totop {
  position: fixed; left: 20px; bottom: 20px; z-index: 40; width: 46px; height: 46px; border-radius: 50%;
  display: grid; place-items: center; background: var(--accent); color: #111; font-weight: 900;
  opacity: 0; pointer-events: none; transform: translateY(10px); transition: .3s;
}
.totop.is-visible { opacity: 1; pointer-events: auto; transform: none; }

/* reveal */
.reveal { opacity: 0; transform: translateY(30px); transition: opacity .8s ease, transform .8s ease; }
.reveal.is-visible { opacity: 1; transform: none; }
.no-js .reveal { opacity: 1; transform: none; }

@keyframes float { 50% { transform: translateY(-14px); } }
@keyframes blink { 50% { opacity: 0; } }

/* ===== responsive ===== */
@media (max-width: 960px) {
  .hero__inner { grid-template-columns: 1fr; }
  .hero__photo { max-width: 420px; margin-inline: auto; order: -1; }
  .cards, .works { grid-template-columns: repeat(2, 1fr); }
  .contact__grid { grid-template-columns: repeat(2, 1fr); }
  .stats__grid { grid-template-columns: repeat(2, 1fr); }
  .stat:nth-child(2) { border-left: 0; }
  .stat:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
}
@media (max-width: 760px) {
  .nav__toggle { display: flex; }
  .nav__menu {
    position: fixed; inset: 72px 0 auto; flex-direction: column; gap: 18px; padding: 26px;
    background: rgba(11, 11, 13, .97); border-bottom: 1px solid var(--line);
    transform: translateY(-120%); transition: transform .35s; z-index: -1;
  }
  .nav.is-open .nav__menu { transform: none; }
  .nav.is-open { background: rgba(11, 11, 13, .97); }
  .nav.is-open .nav__toggle span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .nav.is-open .nav__toggle span:nth-child(2) { opacity: 0; }
  .nav.is-open .nav__toggle span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
  .section { padding: 70px 0; }
  .cards, .works, .contact__grid { grid-template-columns: 1fr; }
  .badge--a { right: 6px; }
  .badge--b { left: 6px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .reveal { opacity: 1; transform: none; }
}