/* Portfolio foundation. Theme colors are centralized so light/dark mode stays consistent. */
:root {
  color-scheme: dark;
  --bg: #10131c;
  --bg-soft: #171b27;
  --surface: rgba(255,255,255,.065);
  --surface-strong: rgba(255,255,255,.105);
  --border: rgba(255,255,255,.14);
  --text: #f3f4f8;
  --muted: #a7adbd;
  --accent: #a6f0d2;
  --accent-ink: #10241d;
  --shadow: 0 24px 80px rgba(0,0,0,.28);
  --page-width: 1200px;
  --radius-lg: 28px;
  --radius-md: 18px;
}
:root[data-theme="light"] {
  color-scheme: light;
  --bg: #edf0f5;
  --bg-soft: #f7f8fb;
  --surface: rgba(255,255,255,.58);
  --surface-strong: rgba(255,255,255,.82);
  --border: rgba(35,43,61,.13);
  --text: #1a2030;
  --muted: #5f687b;
  --accent: #287a60;
  --accent-ink: #fff;
  --shadow: 0 24px 80px rgba(36,48,72,.12);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 100px; }
body { margin: 0; min-height: 100vh; overflow-x: hidden; background: var(--bg); color: var(--text); font-family: "Vazirmatn", system-ui, sans-serif; line-height: 1.7; transition: background .35s ease, color .35s ease; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; }
button, a, select { -webkit-tap-highlight-color: transparent; }
button { color: inherit; }
::selection { background: var(--accent); color: var(--accent-ink); }
.shell { width: min(var(--page-width), calc(100% - 48px)); margin-inline: auto; }
.section-space { padding-block: 96px; }
.glass { background: var(--surface); border: 1px solid var(--border); box-shadow: var(--shadow); backdrop-filter: blur(22px); -webkit-backdrop-filter: blur(22px); }
.ambient { position: fixed; z-index: -1; width: 38vw; height: 38vw; min-width: 300px; min-height: 300px; border-radius: 50%; filter: blur(80px); opacity: .13; pointer-events: none; animation: drift 19s ease-in-out infinite alternate; background: var(--accent); }
.ambient-one { top: -15%; inset-inline-start: -10%; }
.ambient-two { top: 40%; inset-inline-end: -18%; animation-delay: -6s; opacity: .09; }
.ambient-three { bottom: -25%; inset-inline-start: 25%; animation-delay: -11s; opacity: .07; }
@keyframes drift { from { transform: translate3d(-2%, 0, 0) scale(.9); } to { transform: translate3d(7%, 8%, 0) scale(1.12); } }

/* Intro */
.intro { position: fixed; z-index: 1000; inset: 0; display: grid; place-items: center; overflow: hidden; background: var(--bg); transition: opacity .65s ease, visibility .65s ease; }
.intro.is-done { opacity: 0; visibility: hidden; pointer-events: none; }
.intro-lines { position: absolute; inset: auto 0 0; display: flex; flex-direction: column; align-items: center; gap: .05em; color: var(--text); opacity: .035; font: 800 clamp(5rem, 19vw, 17rem)/.8 Arial, sans-serif; letter-spacing: -.08em; animation: lines-rise 1.2s cubic-bezier(.2,.7,.2,1) both; }
.intro-lines span { transform: translateY(110%); animation: line-in .7s cubic-bezier(.2,.7,.2,1) forwards; }
.intro-lines span:nth-child(2) { animation-delay: .12s; }
.intro-lines span:nth-child(3) { animation-delay: .24s; }
.intro-mark { position: relative; z-index: 1; display: grid; place-items: center; width: 112px; aspect-ratio: 1; border: 1px solid var(--border); border-radius: 32px; background: var(--surface); backdrop-filter: blur(20px); font: 800 4rem/1 Arial, sans-serif; box-shadow: 0 0 0 14px var(--surface), 0 24px 80px rgba(0,0,0,.2); animation: logo-impact 1.4s cubic-bezier(.16,1,.3,1) .15s both; }
.intro-mark span, .brand-mark span, .about-stamp span { color: var(--accent); }
.intro-caption { position: absolute; top: calc(50% + 94px); color: var(--muted); font-size: .85rem; animation: fade-up .6s ease .55s both; }
.intro-skip { position: absolute; bottom: 30px; inset-inline-end: max(24px, calc((100vw - var(--page-width))/2)); padding: 10px 15px; border: 1px solid var(--border); border-radius: 999px; background: var(--surface); color: var(--muted); cursor: pointer; }
.intro-skip span { margin-inline-start: 8px; }
@keyframes logo-impact { 0% { opacity: 0; transform: translateY(90px) rotate(-150deg) scale(.3); } 48% { opacity: 1; transform: translateY(-6px) rotate(410deg) scale(1.1); } 68% { transform: translateY(3px) rotate(700deg) scale(.98); } 82% { transform: translateY(0) rotate(720deg) scale(1); } 100% { transform: translateY(0) rotate(720deg) scale(1); } }
@keyframes line-in { to { transform: translateY(0); } }
@keyframes lines-rise { from { transform: translateY(10%); } to { transform: translateY(0); } }
@keyframes fade-up { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }

/* Header */
.site-header { position: sticky; z-index: 100; top: 14px; display: flex; align-items: center; justify-content: space-between; gap: 20px; margin-top: 14px; padding: 12px 16px; border: 1px solid var(--border); border-radius: 22px; background: color-mix(in srgb, var(--bg) 72%, transparent); backdrop-filter: blur(24px); -webkit-backdrop-filter: blur(24px); }
.brand { display: inline-flex; align-items: center; gap: 10px; flex-shrink: 0; }
.brand-mark { display: grid; place-items: center; width: 40px; height: 40px; border: 1px solid var(--border); border-radius: 13px; font: 800 1.5rem Arial, sans-serif; }
.brand-name { display: flex; flex-direction: column; font: 700 .78rem/1.3 Arial, sans-serif; letter-spacing: .08em; }
.brand-name span { color: var(--muted); font-size: .57rem; letter-spacing: .16em; }
.main-nav { display: flex; align-items: center; gap: clamp(14px, 2.2vw, 30px); }
.main-nav a { color: var(--muted); font-size: .85rem; transition: color .2s ease; }
.main-nav a:hover, .main-nav a:focus-visible { color: var(--text); }
.header-actions { display: flex; align-items: center; gap: 8px; }
.icon-button, .menu-toggle { display: grid; place-items: center; width: 40px; height: 40px; border-radius: 13px; cursor: pointer; }
.header-cta { padding: 9px 13px; border-radius: 13px; font-size: .82rem; }
.header-cta span { margin-inline-start: 8px; color: var(--accent); }
.menu-toggle { display: none; }

/* Hero */
.hero { display: grid; grid-template-columns: 1.05fr .95fr; align-items: center; gap: clamp(40px, 8vw, 110px); min-height: 650px; padding-top: 82px; }
.hero-copy { position: relative; z-index: 2; }
.eyebrow { display: inline-flex; align-items: center; gap: 10px; padding: 7px 12px; border: 1px solid var(--border); border-radius: 999px; color: var(--muted); font-size: .78rem; }
.status-dot, .chip-pulse { width: 8px; height: 8px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 5px color-mix(in srgb, var(--accent) 15%, transparent); }
.hero-kicker { margin: 28px 0 4px; color: var(--muted); font-size: 1rem; }
.hero h1 { margin: 0; font-size: clamp(2.7rem, 5vw, 5.2rem); font-weight: 800; line-height: 1.2; letter-spacing: -.045em; }
.hero h1 span, .section-heading h2 span, .about-content h2 span { color: var(--accent); }
.hero-description { max-width: 560px; margin: 24px 0 0; color: var(--muted); font-size: 1rem; line-height: 2; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 14px; min-height: 48px; padding: 11px 18px; border: 1px solid transparent; border-radius: 15px; cursor: pointer; font-size: .88rem; transition: transform .25s ease, background .25s ease, border-color .25s ease; }
.button:hover { transform: translateY(-3px); }
.button-primary { background: var(--accent); color: var(--accent-ink); box-shadow: 0 10px 32px color-mix(in srgb, var(--accent) 18%, transparent); }
.button-primary span { font-size: 1.1rem; }
.button-secondary { border-color: var(--border); }
.button-secondary:hover { background: var(--surface-strong); }
.hero-meta { display: flex; flex-wrap: wrap; gap: 30px; margin-top: 44px; padding-top: 22px; border-top: 1px solid var(--border); }
.hero-meta div { display: flex; flex-direction: column; gap: 2px; }
.hero-meta strong { font: 700 .75rem Arial, sans-serif; color: var(--accent); }
.hero-meta span { color: var(--muted); font-size: .75rem; }
.hero-visual { position: relative; min-width: 0; padding: 28px; }
.visual-orbit { position: absolute; inset: 2%; border: 1px solid var(--border); border-radius: 48% 52% 50% 50%; pointer-events: none; }
.orbit-one { transform: rotate(28deg); animation: orbit 30s linear infinite; }
.orbit-two { inset: 10% -2%; transform: rotate(-30deg); border-style: dashed; opacity: .55; animation: orbit 42s linear infinite reverse; }
@keyframes orbit { to { rotate: 360deg; } }
.portrait-card { position: relative; z-index: 1; overflow: hidden; border-radius: var(--radius-lg); transform: rotate(1.2deg); transition: transform .35s ease; }
.portrait-card:hover { transform: rotate(0) translateY(-5px); }
.portrait-top, .portrait-bottom { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 16px 18px; font: 600 .62rem Arial, sans-serif; letter-spacing: .1em; }
.portrait-top { color: var(--muted); border-bottom: 1px solid var(--border); }
.portrait-placeholder { display: grid; align-content: center; justify-items: center; min-height: 330px; padding: 30px; background: radial-gradient(ellipse at 50% 35%, color-mix(in srgb, var(--accent) 18%, transparent), transparent 60%), linear-gradient(145deg, var(--surface-strong), transparent); }
.portrait-initials { font: 800 clamp(7rem, 15vw, 12rem)/1 Arial, sans-serif; letter-spacing: -.12em; opacity: .9; }
.portrait-initials span { color: var(--accent); }
.portrait-placeholder p { margin: 12px 0 0; color: var(--muted); font-size: .75rem; text-align: center; }
.portrait-bottom { border-top: 1px solid var(--border); font-family: inherit; letter-spacing: 0; }
.portrait-bottom div { display: flex; flex-direction: column; gap: 4px; }
.portrait-bottom strong { font: 700 .68rem Arial, sans-serif; letter-spacing: .08em; }
.portrait-bottom div span { color: var(--muted); font-size: .7rem; }
.round-arrow, .project-arrow { display: grid; place-items: center; width: 36px; height: 36px; border: 1px solid var(--border); border-radius: 50%; }
.floating-chip { position: absolute; z-index: 2; display: inline-flex; align-items: center; gap: 10px; padding: 11px 14px; border-radius: 15px; font-size: .75rem; box-shadow: var(--shadow); }
.chip-top { top: 13%; inset-inline-end: -1%; animation: float 5s ease-in-out infinite; }
.chip-bottom { bottom: 12%; inset-inline-start: -2%; animation: float 6s ease-in-out -2s infinite; }
.chip-icon { display: grid; place-items: center; width: 26px; height: 26px; border-radius: 9px; background: var(--surface-strong); color: var(--accent); }
.chip-pulse { width: 7px; height: 7px; }
.visual-index { position: absolute; bottom: -8px; inset-inline-end: 28px; color: var(--muted); opacity: .65; font: .6rem Arial, sans-serif; letter-spacing: .12em; }
@keyframes float { 0%,100% { translate: 0 0; } 50% { translate: 0 -9px; } }

/* Work */
.work-section { border-top: 1px solid var(--border); }
.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 32px; margin-bottom: 34px; }
.section-kicker { margin: 0 0 12px; color: var(--muted); font: 600 .67rem Arial, sans-serif; letter-spacing: .13em; }
.section-heading h2, .about-content h2 { margin: 0; font-size: clamp(2rem, 4vw, 3.6rem); line-height: 1.35; letter-spacing: -.04em; }
.section-heading > p { max-width: 380px; margin: 0 0 5px; color: var(--muted); font-size: .85rem; }
.project-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 20px; }
.project-card { overflow: hidden; border-radius: var(--radius-lg); transition: transform .3s ease, border-color .3s ease; }
.project-card:hover { transform: translateY(-6px); border-color: color-mix(in srgb, var(--accent) 42%, var(--border)); }
.project-feature { grid-column: span 2; }
.project-art { position: relative; display: flex; flex-direction: column; justify-content: space-between; min-height: 280px; overflow: hidden; padding: 22px; isolation: isolate; background: #202431; color: #f5f5f5; }
.project-feature .project-art { min-height: 380px; }
.art-one { background: radial-gradient(ellipse at 70% 45%, #515d69, transparent 40%), linear-gradient(125deg,#191d27,#323b43 60%,#151821); }
.art-two { background: radial-gradient(circle at 50% 45%,#e8d8b7,#b7a17e 45%,#675d50); color: #20231f; }
.art-three { background: radial-gradient(ellipse at 70% 10%,#455a52,transparent 45%),linear-gradient(135deg,#111b19,#293d36); }
.art-label, .art-foot { position: relative; z-index: 2; font: 600 .6rem Arial,sans-serif; letter-spacing: .14em; opacity: .72; }
.art-foot { align-self: start; }
.art-shape { position: absolute; z-index: -1; border: 1px solid rgba(255,255,255,.42); border-radius: 50%; }
.shape-one { width: 320px; height: 320px; inset-inline-end: 15%; top: 8%; box-shadow: inset 0 0 50px rgba(255,255,255,.12), 0 0 80px rgba(255,255,255,.08); }
.shape-one::before, .shape-one::after { content: ""; position: absolute; inset: 12%; border: 1px solid rgba(255,255,255,.32); border-radius: 50%; }
.shape-one::after { inset: 25%; }
.art-type { position: relative; z-index: 1; align-self: flex-start; margin-inline-start: 5%; font: 800 clamp(3rem, 8vw, 7.5rem)/.8 Arial,sans-serif; letter-spacing: -.08em; }
.art-type i { color: #c2f5df; font-style: normal; }
.brand-symbol { position: absolute; inset: 50% auto auto 50%; translate: -50% -60%; font: 800 9rem/1 Arial,sans-serif; letter-spacing: -.12em; }
.brand-symbol span { color: #f4f0e5; }
.brand-word { align-self: center; margin-top: auto; font: 700 .7rem Arial,sans-serif; letter-spacing: .25em; }
.digital-window { position: absolute; top: 16%; left: 18%; right: 18%; bottom: 12%; border: 1px solid rgba(255,255,255,.3); border-radius: 12px; background: rgba(8,14,12,.5); box-shadow: 0 20px 50px rgba(0,0,0,.25); transform: rotate(-4deg); }
.window-bar { display: flex; gap: 5px; padding: 10px; border-bottom: 1px solid rgba(255,255,255,.16); }
.window-bar i { width: 5px; height: 5px; border-radius: 50%; background: rgba(255,255,255,.65); }
.window-content { display: flex; flex-direction: column; gap: 8px; padding: 18px; }
.window-content span, .window-content small { font: .5rem Arial,sans-serif; letter-spacing: .12em; opacity: .7; }
.window-content b { font: 800 clamp(1.5rem,4vw,3.5rem)/.85 Arial,sans-serif; letter-spacing: -.07em; }
.window-content em { color: #c2f5df; font-style: normal; }
.project-info { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 18px 20px 20px; }
.project-category { color: var(--muted); font-size: .7rem; }
.project-info h3 { margin: 3px 0 0; font-size: 1rem; }
.project-arrow { transition: transform .25s ease, background .25s ease; }
.project-card:hover .project-arrow { transform: rotate(45deg); background: var(--surface-strong); }
.demo-note { margin: 18px 0 0; color: var(--muted); font-size: .75rem; }

/* About and contact */
.about-panel { position: relative; display: grid; grid-template-columns: 1fr auto; gap: 30px; overflow: hidden; padding: clamp(28px, 6vw, 72px); border-radius: 32px; }
.about-panel::before { content: ""; position: absolute; width: 350px; height: 350px; inset-inline-end: -100px; bottom: -210px; border: 1px solid var(--border); border-radius: 50%; box-shadow: 0 0 0 35px var(--surface), 0 0 0 70px color-mix(in srgb,var(--surface) 60%,transparent); }
.about-stamp { position: absolute; top: 35px; inset-inline-end: 42px; display: grid; place-items: center; width: 54px; height: 54px; border: 1px solid var(--border); border-radius: 17px; font: 800 2rem Arial,sans-serif; }
.about-content { max-width: 680px; }
.about-content h2 { margin-top: 16px; }
.about-content > p:not(.section-kicker) { max-width: 620px; margin: 22px 0; color: var(--muted); }
.text-link { display: inline-flex; gap: 12px; align-items: center; padding-bottom: 5px; border-bottom: 1px solid var(--border); font-size: .85rem; }
.text-link span { color: var(--accent); }
.about-side { align-self: end; display: flex; flex-direction: column; gap: 8px; color: var(--muted); font: 600 .62rem Arial,sans-serif; letter-spacing: .15em; }
.contact-section { border-top: 1px solid var(--border); }
.contact-form { display: grid; grid-template-columns: .65fr 1.35fr; gap: 35px; padding: clamp(24px, 4vw, 46px); border-radius: 28px; }
.form-number { display: inline-block; margin-bottom: 20px; color: var(--accent); font: 600 .7rem Arial,sans-serif; letter-spacing: .15em; }
.form-intro h3 { margin: 0; font-size: 1.5rem; }
.form-intro p { color: var(--muted); font-size: .82rem; }
.form-fields { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 18px; }
.form-fields label { display: flex; flex-direction: column; gap: 8px; min-width: 0; }
.form-fields label > span { font-size: .78rem; }
.form-fields input, .form-fields select, .form-fields textarea { width: 100%; min-width: 0; padding: 13px 14px; border: 1px solid var(--border); border-radius: 13px; outline: none; background: var(--surface); color: var(--text); transition: border-color .2s ease, box-shadow .2s ease; }
.form-fields input::placeholder, .form-fields textarea::placeholder { color: var(--muted); opacity: .8; }
.form-fields select option { color: var(--text); background: var(--bg-soft); }
.form-fields input:focus, .form-fields select:focus, .form-fields textarea:focus { border-color: var(--accent); box-shadow: 0 0 0 3px color-mix(in srgb,var(--accent) 15%,transparent); }
.form-fields textarea { resize: vertical; }
.field-full { grid-column: 1 / -1; }
.form-bottom { display: flex; align-items: center; justify-content: space-between; gap: 18px; flex-wrap: wrap; }
.form-bottom p { margin: 0; color: var(--muted); font-size: .73rem; }
.site-footer { display: flex; align-items: center; justify-content: space-between; gap: 20px; flex-wrap: wrap; padding-block: 30px 40px; border-top: 1px solid var(--border); }
.site-footer > p, .back-top, .copyright { color: var(--muted); font-size: .75rem; }
.back-top { border-bottom: 1px solid var(--border); padding-bottom: 3px; }

/* Language layout */
html[dir="ltr"] body { font-family: Inter, Arial, sans-serif; }
html[dir="ltr"] .brand-name { letter-spacing: .08em; }
html[dir="ltr"] .hero h1, html[dir="ltr"] .section-heading h2, html[dir="ltr"] .about-content h2 { letter-spacing: -.055em; }
html[dir="ltr"] .art-type { align-self: flex-end; margin-inline-end: 5%; margin-inline-start: 0; }
html[dir="ltr"] .intro-caption { font-family: Inter, Arial, sans-serif; }
html[dir="ltr"] .about-stamp { inset-inline-start: auto; }

/* Responsive */
@media (max-width: 980px) {
  .main-nav { gap: 13px; }
  .main-nav a { font-size: .77rem; }
  .header-cta { display: none; }
  .hero { gap: 35px; }
  .hero-meta { gap: 18px; }
  .contact-form { grid-template-columns: 1fr; gap: 20px; }
}
@media (max-width: 760px) {
  .shell { width: min(100% - 30px, var(--page-width)); }
  .section-space { padding-block: 66px; }
  .site-header { top: 8px; gap: 10px; padding: 9px 10px; margin-top: 8px; border-radius: 18px; }
  .brand-name { font-size: .67rem; }
  .brand-name span { font-size: .49rem; }
  .brand-mark { width: 36px; height: 36px; }
  .header-actions { margin-inline-start: auto; }
  .menu-toggle { display: grid; }
  .main-nav { position: absolute; top: calc(100% + 8px); inset-inline: 0; display: none; flex-direction: column; align-items: stretch; gap: 0; padding: 8px; border: 1px solid var(--border); border-radius: 18px; background: var(--bg); box-shadow: var(--shadow); }
  .main-nav.is-open { display: flex; }
  .main-nav a { padding: 12px; border-radius: 10px; font-size: .9rem; }
  .main-nav a:hover { background: var(--surface); }
  .hero { grid-template-columns: 1fr; gap: 38px; min-height: 0; padding-top: 60px; }
  .hero-copy { order: 1; }
  .hero-visual { order: 0; width: min(100%, 460px); margin-inline: auto; padding: 20px; }
  .portrait-placeholder { min-height: 260px; }
  .hero h1 { font-size: clamp(2.7rem, 12vw, 4.5rem); }
  .hero-description { font-size: .92rem; }
  .hero-meta { justify-content: space-between; gap: 10px; }
  .chip-top { inset-inline-end: -2%; }
  .chip-bottom { inset-inline-start: -2%; }
  .section-heading { align-items: start; flex-direction: column; gap: 12px; }
  .section-heading > p { max-width: 600px; }
  .project-grid { grid-template-columns: 1fr; gap: 15px; }
  .project-feature { grid-column: auto; }
  .project-feature .project-art { min-height: 300px; }
  .project-art { min-height: 260px; }
  .art-type { font-size: clamp(3.4rem, 14vw, 6rem); }
  .about-panel { grid-template-columns: 1fr; padding-top: 88px; }
  .about-side { flex-direction: row; flex-wrap: wrap; gap: 12px; }
  .about-stamp { top: 22px; inset-inline-end: 25px; }
  .form-fields { grid-template-columns: 1fr; }
  .field-full { grid-column: auto; }
  .site-footer { align-items: flex-start; }
  .site-footer > p { order: 3; width: 100%; margin: 0; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .intro { display: none; }
}