/* ==========================================================================
   Machine Health Intelligence Research Centre
   Light palette lives on bare :root. Dark is a token swap, defined twice:
   once under prefers-color-scheme, once under [data-theme="dark"].
   ========================================================================== */

:root {
  /* surfaces */
  --bg:            #f7f8fa;
  --bg-elev:       #ffffff;
  --bg-sunken:     #eef1f5;
  --bg-ink:        #081420;

  /* text */
  --fg:            #0a1622;
  --fg-muted:      #4d5f72;
  --fg-faint:      #7b8c9e;
  --fg-on-ink:     #eaf1f8;
  --fg-on-ink-mut: #93aabf;

  /* brand */
  --accent:        #0fae9c;
  --accent-strong: #0a8578;
  --accent-soft:   #ddf3f0;
  --accent-glow:   rgb(15 174 156 / .17);
  --warn:          #d4801c;
  --warn-soft:     #fbf0df;
  --violet:        #6366e8;
  --violet-glow:   rgb(99 102 232 / .13);

  /* lines */
  --line:          #e0e5ec;
  --line-strong:   #c6cfda;
  --line-on-ink:   #1b3145;

  --sh-sm: 0 1px 2px rgb(8 20 32 / .05), 0 1px 3px rgb(8 20 32 / .04);
  --sh-md: 0 6px 18px rgb(8 20 32 / .07), 0 2px 5px rgb(8 20 32 / .04);
  --sh-lg: 0 24px 56px rgb(8 20 32 / .11), 0 6px 14px rgb(8 20 32 / .05);
  --sh-xl: 0 40px 90px rgb(8 20 32 / .15), 0 10px 24px rgb(8 20 32 / .06);

  --r:    16px;
  --r-sm: 10px;
  --r-lg: 24px;
  --maxw: 1180px;

  --f-disp: "Space Grotesk", "Inter", system-ui, sans-serif;
  --f-sans: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --f-mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, Consolas, monospace;

  --ease: cubic-bezier(.22, 1, .36, 1);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg:            #070f18;
    --bg-elev:       #0e1c29;
    --bg-sunken:     #050b12;
    --bg-ink:        #050b12;
    --fg:            #e9f0f7;
    --fg-muted:      #a2b5c8;
    --fg-faint:      #6f849a;
    --fg-on-ink:     #e9f0f7;
    --fg-on-ink-mut: #90a7bd;
    --accent:        #2ed3bd;
    --accent-strong: #4fe3cf;
    --accent-soft:   #0c2b29;
    --accent-glow:   rgb(46 211 189 / .16);
    --warn:          #eaa758;
    --warn-soft:     #2a1f11;
    --violet:        #8b8df0;
    --violet-glow:   rgb(139 141 240 / .14);
    --line:          #18293a;
    --line-strong:   #27405a;
    --line-on-ink:   #18293a;
    --sh-sm: 0 1px 2px rgb(0 0 0 / .4);
    --sh-md: 0 6px 20px rgb(0 0 0 / .45);
    --sh-lg: 0 24px 60px rgb(0 0 0 / .55);
    --sh-xl: 0 40px 96px rgb(0 0 0 / .62);
  }
}

:root[data-theme="dark"] {
  --bg:            #070f18;
  --bg-elev:       #0e1c29;
  --bg-sunken:     #050b12;
  --bg-ink:        #050b12;
  --fg:            #e9f0f7;
  --fg-muted:      #a2b5c8;
  --fg-faint:      #6f849a;
  --fg-on-ink:     #e9f0f7;
  --fg-on-ink-mut: #90a7bd;
  --accent:        #2ed3bd;
  --accent-strong: #4fe3cf;
  --accent-soft:   #0c2b29;
  --accent-glow:   rgb(46 211 189 / .16);
  --warn:          #eaa758;
  --warn-soft:     #2a1f11;
  --violet:        #8b8df0;
  --violet-glow:   rgb(139 141 240 / .14);
  --line:          #18293a;
  --line-strong:   #27405a;
  --line-on-ink:   #18293a;
  --sh-sm: 0 1px 2px rgb(0 0 0 / .4);
  --sh-md: 0 6px 20px rgb(0 0 0 / .45);
  --sh-lg: 0 24px 60px rgb(0 0 0 / .55);
  --sh-xl: 0 40px 96px rgb(0 0 0 / .62);
}

/* ---------- base ---------- */

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 88px; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--f-sans);
  font-size: 16.5px;
  line-height: 1.66;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

html[lang="fa"] body { font-family: "Vazirmatn", var(--f-sans); line-height: 1.9; }
html[lang="fa"] { --f-disp: "Vazirmatn", var(--f-sans); --f-mono: "Vazirmatn", var(--f-sans); }

img, svg { max-width: 100%; height: auto; }

h1, h2, h3, h4 {
  font-family: var(--f-disp);
  line-height: 1.14; margin: 0 0 .5em; font-weight: 600; letter-spacing: -.028em;
}
h1 { font-size: clamp(2.35rem, 5.6vw, 4rem); letter-spacing: -.042em; font-weight: 600; }
h2 { font-size: clamp(1.72rem, 3.7vw, 2.55rem); letter-spacing: -.034em; }
h3 { font-size: 1.16rem; letter-spacing: -.018em; font-weight: 600; }
p  { margin: 0 0 1em; }
html[lang="fa"] h1, html[lang="fa"] h2, html[lang="fa"] h3 { letter-spacing: 0; line-height: 1.4; font-weight: 700; }

a { color: var(--accent-strong); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: var(--accent); }

:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 5px; }

.wrap { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: 24px; }

.skip {
  position: absolute; inset-inline-start: 14px; top: -70px; z-index: 300;
  background: var(--accent-strong); color: #fff; padding: 11px 18px;
  border-radius: 0 0 var(--r-sm) var(--r-sm); transition: top .2s;
}
.skip:focus { top: 0; color: #fff; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .01ms !important; animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
}

/* ---------- shared bits ---------- */

.eyebrow {
  font-family: var(--f-mono); font-size: .69rem; font-weight: 500;
  letter-spacing: .2em; text-transform: uppercase; color: var(--accent-strong);
  display: flex; align-items: center; gap: 11px; margin-bottom: 16px;
}
.eyebrow::before { content: ""; width: 24px; height: 1.5px; background: currentColor; flex: none; opacity: .55; }
html[lang="fa"] .eyebrow { letter-spacing: 0; text-transform: none; font-size: .84rem; font-weight: 600; }

.sec { padding-block: clamp(68px, 9vw, 122px); position: relative; }
.sec--sunken { background: var(--bg-sunken); border-block: 1px solid var(--line); }
.sec__head { max-width: 700px; margin-bottom: clamp(38px, 5vw, 60px); }
.sec__head p { color: var(--fg-muted); font-size: 1.07rem; margin-bottom: 0; }

.lede { font-size: clamp(1.03rem, 1.7vw, 1.2rem); color: var(--fg-muted); max-width: 56ch; }

/* ---------- header ---------- */

.hdr {
  position: sticky; top: 0; z-index: 100;
  background: color-mix(in srgb, var(--bg) 78%, transparent);
  backdrop-filter: saturate(1.6) blur(16px);
  -webkit-backdrop-filter: saturate(1.6) blur(16px);
  border-bottom: 1px solid transparent;
  transition: border-color .25s, background .25s;
}
.hdr[data-stuck="true"] {
  border-bottom-color: var(--line);
  background: color-mix(in srgb, var(--bg) 90%, transparent);
}
.hdr__in { display: flex; align-items: center; gap: 20px; height: 72px; }

.brand { display: flex; align-items: center; gap: 12px; text-decoration: none; color: var(--fg); flex: none; }
.brand__mark { width: 36px; height: 36px; flex: none; }
.brand__txt { display: flex; flex-direction: column; line-height: 1.1; }
.brand__ab { font-family: var(--f-disp); font-weight: 700; font-size: 1.12rem; letter-spacing: -.035em; }
.brand__full {
  font-family: var(--f-mono); font-size: .585rem; color: var(--fg-faint);
  letter-spacing: .1em; text-transform: uppercase; margin-top: 1px;
}
html[lang="fa"] .brand__full { letter-spacing: 0; text-transform: none; font-size: .68rem; }

.nav { display: flex; gap: 2px; margin-inline-start: auto; }
.nav a {
  color: var(--fg-muted); text-decoration: none; font-size: .915rem; font-weight: 500;
  padding: 8px 13px; border-radius: var(--r-sm); transition: color .18s, background .18s;
}
.nav a:hover { color: var(--fg); background: color-mix(in srgb, var(--fg) 6%, transparent); }

.hdr__tools { display: flex; align-items: center; gap: 9px; flex: none; }

.iconbtn {
  width: 37px; height: 37px; display: grid; place-items: center;
  background: transparent; border: 1px solid var(--line); border-radius: var(--r-sm);
  color: var(--fg-muted); cursor: pointer; transition: all .18s;
}
.iconbtn:hover { color: var(--fg); border-color: var(--line-strong); background: var(--bg-elev); }
.iconbtn svg { width: 17px; height: 17px; }

.langsel {
  display: flex; background: color-mix(in srgb, var(--fg) 5%, transparent);
  border: 1px solid var(--line); border-radius: var(--r-sm); padding: 2px; gap: 1px;
}
.langsel button {
  font: inherit; font-family: var(--f-mono); font-size: .7rem; font-weight: 600; letter-spacing: .05em;
  padding: 5px 10px; border: 0; background: transparent; color: var(--fg-faint);
  border-radius: 7px; cursor: pointer; transition: all .18s;
}
.langsel button:hover { color: var(--fg); }
.langsel button[aria-pressed="true"] { background: var(--bg-elev); color: var(--accent-strong); box-shadow: var(--sh-sm); }

.burger { display: none; }

@media (max-width: 920px) {
  .nav {
    position: fixed; inset: 72px 0 auto 0; flex-direction: column; gap: 0;
    background: var(--bg-elev); border-bottom: 1px solid var(--line);
    padding: 12px 24px 22px; box-shadow: var(--sh-lg);
    transform: translateY(-130%); transition: transform .3s var(--ease);
    margin-inline-start: 0;
  }
  .nav[data-open="true"] { transform: translateY(0); }
  .nav a { padding: 13px 6px; border-bottom: 1px solid var(--line); border-radius: 0; font-size: 1rem; }
  .nav a:last-child { border-bottom: 0; }
  .burger { display: grid; margin-inline-start: auto; }
  .brand__full { display: none; }
}

/* ---------- hero ---------- */

.hero { position: relative; padding-block: clamp(56px, 8vw, 96px) clamp(52px, 7vw, 88px); overflow: clip; }

/* aurora field */
.hero::before, .hero::after {
  content: ""; position: absolute; border-radius: 50%; pointer-events: none;
  filter: blur(90px); z-index: 0;
}
.hero::before {
  width: 620px; height: 620px; top: -260px; inset-inline-start: -180px;
  background: radial-gradient(circle, var(--accent-glow), transparent 68%);
  animation: drift 22s ease-in-out infinite alternate;
}
.hero::after {
  width: 540px; height: 540px; top: 40px; inset-inline-end: -220px;
  background: radial-gradient(circle, var(--violet-glow), transparent 68%);
  animation: drift 27s ease-in-out infinite alternate-reverse;
}
@keyframes drift {
  from { transform: translate3d(0,0,0) scale(1); }
  to   { transform: translate3d(50px, 60px, 0) scale(1.12); }
}

.hero > .wrap { position: relative; z-index: 1; }

.hero__grid {
  display: grid; grid-template-columns: minmax(0, 1.04fr) minmax(0, .96fr);
  gap: clamp(34px, 5vw, 64px); align-items: center;
}
@media (max-width: 900px) { .hero__grid { grid-template-columns: 1fr; } }

.pill {
  display: inline-flex; align-items: center; gap: 9px;
  font-family: var(--f-mono); font-size: .71rem; letter-spacing: .09em; text-transform: uppercase;
  padding: 6px 14px 6px 8px; border-radius: 100px;
  background: var(--bg-elev); border: 1px solid var(--line);
  color: var(--fg-muted); box-shadow: var(--sh-sm); margin-bottom: 26px;
}
html[lang="fa"] .pill { letter-spacing: 0; text-transform: none; font-size: .8rem; padding: 6px 8px 6px 14px; }
.pill__dot {
  width: 7px; height: 7px; border-radius: 50%; background: var(--accent); flex: none;
  box-shadow: 0 0 0 3px var(--accent-glow); animation: pulse 2.6s ease-in-out infinite;
}
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: .45; } }

.hero h1 { margin-bottom: .44em; }
.hero h1 .grad {
  background: linear-gradient(105deg, var(--accent) 0%, var(--violet) 88%);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
}
.hero__lede { margin-bottom: 2em; }

.cta { display: flex; flex-wrap: wrap; gap: 12px; }
.btn {
  display: inline-flex; align-items: center; gap: 9px;
  padding: 13px 24px; border-radius: 100px;
  font-size: .95rem; font-weight: 560; text-decoration: none;
  border: 1px solid transparent; cursor: pointer;
  transition: transform .22s var(--ease), box-shadow .22s, background .22s, border-color .22s, color .22s;
}
.btn svg { width: 15px; height: 15px; flex: none; transition: transform .22s var(--ease); }
.btn--primary {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-strong) 100%);
  color: #fff; box-shadow: 0 6px 20px var(--accent-glow), var(--sh-sm);
}
:root[data-theme="dark"] .btn--primary,
.btn--primary { color: #fff; }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .btn--primary { color: #04231f; } }
:root[data-theme="dark"] .btn--primary { color: #04231f; }
.btn--primary:hover { transform: translateY(-2px); box-shadow: 0 12px 30px var(--accent-glow), var(--sh-md); }
.btn--primary:hover svg { transform: translateX(3px); }
html[dir="rtl"] .btn--primary:hover svg { transform: translateX(-3px); }
.btn--ghost { background: var(--bg-elev); color: var(--fg); border-color: var(--line-strong); box-shadow: var(--sh-sm); }
.btn--ghost:hover { transform: translateY(-2px); border-color: var(--accent); color: var(--accent-strong); box-shadow: var(--sh-md); }

/* hero scope panel */
.scope {
  background: var(--bg-ink); border-radius: var(--r-lg); padding: 22px 22px 18px;
  box-shadow: var(--sh-xl); border: 1px solid var(--line-on-ink);
  position: relative; overflow: hidden;
}
.scope::before {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(120% 90% at 50% -20%, rgb(46 211 189 / .12), transparent 60%);
  pointer-events: none;
}
.scope svg { display: block; width: 100%; height: auto; position: relative; }
.scope__cap {
  font-family: var(--f-mono); font-size: .64rem; letter-spacing: .12em; text-transform: uppercase;
  color: var(--fg-on-ink-mut); margin: 14px 3px 0;
  display: flex; justify-content: space-between; gap: 14px; flex-wrap: wrap;
  position: relative;
}
html[lang="fa"] .scope__cap { letter-spacing: 0; text-transform: none; font-size: .76rem; }
.scope__cap b { color: #4fe3cf; font-weight: 500; }
.scope__cap i { color: #eaa758; font-style: normal; font-weight: 500; }

.trace-h { stroke: #2ed3bd; }
.trace-f { stroke: #eaa758; }
.grid-l  { stroke: #12283c; }
.tick-t  { fill: #6d869c; font-family: var(--f-mono); font-size: 8.5px; letter-spacing: .04em; }

.sweep {
  stroke-dasharray: 1400; stroke-dashoffset: 1400;
  animation: draw 3.4s var(--ease) forwards;
}
.sweep--b { animation-delay: .45s; }
@keyframes draw { to { stroke-dashoffset: 0; } }

/* ---------- stats ---------- */

.stats {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(152px, 1fr));
  gap: 1px; background: var(--line);
  border: 1px solid var(--line); border-radius: var(--r); overflow: hidden;
  margin-top: clamp(44px, 5.5vw, 72px); box-shadow: var(--sh-sm);
}
.stat { background: var(--bg-elev); padding: 24px 22px; transition: background .2s; }
.stat:hover { background: var(--bg); }
.stat__n {
  font-family: var(--f-disp); font-size: 1.95rem; font-weight: 600;
  color: var(--fg); letter-spacing: -.045em; display: block; line-height: 1.05;
}
.stat__n span { color: var(--accent-strong); }
.stat__l { font-size: .825rem; color: var(--fg-muted); margin-top: 7px; display: block; }

/* ---------- bento ---------- */

.bento {
  display: grid; grid-template-columns: repeat(6, 1fr); gap: 16px;
}
.bento > * { grid-column: span 2; }
.bento > .b-wide { grid-column: span 3; }
@media (max-width: 1020px) {
  .bento { grid-template-columns: repeat(4, 1fr); }
  .bento > *, .bento > .b-wide { grid-column: span 2; }
}
@media (max-width: 660px) {
  .bento { grid-template-columns: 1fr; }
  .bento > *, .bento > .b-wide { grid-column: span 1; }
}

.card {
  background: var(--bg-elev); border: 1px solid var(--line); border-radius: var(--r);
  padding: 28px 26px; position: relative; overflow: hidden;
  transition: border-color .25s, transform .25s var(--ease), box-shadow .25s;
}
.card::after {
  content: ""; position: absolute; inset: 0; border-radius: inherit; pointer-events: none;
  background: radial-gradient(420px circle at var(--mx, 50%) var(--my, 0%), var(--accent-glow), transparent 42%);
  opacity: 0; transition: opacity .35s;
}
.card:hover { border-color: var(--line-strong); transform: translateY(-3px); box-shadow: var(--sh-md); }
.card:hover::after { opacity: 1; }
.card > * { position: relative; }
.card h3 { margin-bottom: .48em; }
.card p { color: var(--fg-muted); font-size: .935rem; margin-bottom: 0; }

.card__ico {
  width: 42px; height: 42px; border-radius: 12px; display: grid; place-items: center;
  background: var(--accent-soft); color: var(--accent-strong); margin-bottom: 18px;
  border: 1px solid color-mix(in srgb, var(--accent) 22%, transparent);
}
.card__ico svg { width: 20px; height: 20px; }
.card--alt .card__ico {
  background: var(--warn-soft); color: var(--warn);
  border-color: color-mix(in srgb, var(--warn) 25%, transparent);
}
.card--alt::after { background: radial-gradient(420px circle at var(--mx,50%) var(--my,0%), rgb(212 128 28 / .12), transparent 42%); }

.tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 18px; }
.tag {
  font-family: var(--f-mono); font-size: .67rem; letter-spacing: .03em;
  padding: 3px 9px; border-radius: 6px;
  background: color-mix(in srgb, var(--fg) 5%, transparent); color: var(--fg-faint);
  border: 1px solid var(--line);
}
html[lang="fa"] .tag { font-size: .76rem; letter-spacing: 0; }

/* ---------- steps ---------- */

.steps { display: grid; gap: 0; counter-reset: s; max-width: 860px; }
.step {
  display: grid; grid-template-columns: auto 1fr; gap: 22px; align-items: start;
  padding: 24px 6px; border-bottom: 1px solid var(--line);
}
.step:last-child { border-bottom: 0; }
.step::before {
  counter-increment: s; content: counter(s, decimal-leading-zero);
  font-family: var(--f-mono); font-size: .78rem; font-weight: 600;
  color: var(--accent-strong); padding-top: 4px; opacity: .8;
}
.step h3 { margin-bottom: .3em; }
.step p { color: var(--fg-muted); font-size: .94rem; margin-bottom: 0; }

/* ---------- publications ---------- */

.pubs { display: grid; gap: 14px; }
.pub {
  display: grid; grid-template-columns: auto 1fr; gap: 20px;
  background: var(--bg-elev); border: 1px solid var(--line); border-radius: var(--r);
  padding: 22px 24px; transition: border-color .22s, box-shadow .22s, transform .22s var(--ease);
}
.pub:hover { border-color: var(--line-strong); box-shadow: var(--sh-md); transform: translateY(-2px); }
.pub__yr {
  font-family: var(--f-mono); font-size: .8rem; font-weight: 600; color: var(--accent-strong);
  padding-top: 3px; letter-spacing: -.01em;
}
.pub__ti { font-family: var(--f-disp); font-size: 1.04rem; font-weight: 600; line-height: 1.35; margin: 0 0 7px; letter-spacing: -.018em; }
.pub__au { font-size: .875rem; color: var(--fg-muted); margin: 0 0 6px; }
.pub__au b { font-weight: 640; color: var(--fg); }
.pub__ve { font-size: .855rem; color: var(--fg-faint); margin: 0; font-style: italic; }
.pub__lnk { display: inline-flex; align-items: center; gap: 6px; font-size: .8rem; margin-top: 10px; font-family: var(--f-mono); }
.pub__lnk svg { width: 12px; height: 12px; }

.badge {
  display: inline-block; font-family: var(--f-mono); font-size: .63rem;
  letter-spacing: .1em; text-transform: uppercase; padding: 2px 8px; border-radius: 5px;
  background: var(--warn-soft); color: var(--warn);
  border: 1px solid color-mix(in srgb, var(--warn) 32%, transparent);
  vertical-align: 2px; margin-inline-start: 8px; white-space: nowrap;
}
html[lang="fa"] .badge { letter-spacing: 0; text-transform: none; font-size: .72rem; }

@media (max-width: 580px) { .pub { grid-template-columns: 1fr; gap: 8px; } }

/* ---------- team ---------- */

.people { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 18px; }
.person {
  background: var(--bg-elev); border: 1px solid var(--line); border-radius: var(--r); padding: 30px 28px;
  transition: border-color .22s, box-shadow .22s, transform .22s var(--ease);
}
.person:hover { border-color: var(--line-strong); box-shadow: var(--sh-md); transform: translateY(-3px); }
.person__av {
  width: 62px; height: 62px; border-radius: 50%; display: grid; place-items: center;
  background: linear-gradient(135deg, var(--accent-soft), color-mix(in srgb, var(--violet) 14%, transparent));
  color: var(--accent-strong); border: 1px solid color-mix(in srgb, var(--accent) 24%, transparent);
  font-family: var(--f-disp); font-weight: 600; font-size: 1.22rem; letter-spacing: -.03em; margin-bottom: 17px;
}
.person__nm { font-family: var(--f-disp); font-size: 1.1rem; font-weight: 600; margin: 0 0 3px; letter-spacing: -.024em; }
.person__ro { font-size: .855rem; color: var(--accent-strong); margin: 0 0 13px; font-weight: 520; }
.person__bi { font-size: .91rem; color: var(--fg-muted); margin: 0; }
.person__ct { margin-top: 15px; font-size: .84rem; font-family: var(--f-mono); word-break: break-all; }

/* ---------- contact ---------- */

.contact {
  background: var(--bg-ink); color: var(--fg-on-ink);
  border-radius: var(--r-lg); padding: clamp(36px, 5vw, 60px);
  display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 44px;
  border: 1px solid var(--line-on-ink); position: relative; overflow: hidden;
  box-shadow: var(--sh-lg);
}
.contact::before {
  content: ""; position: absolute; width: 460px; height: 460px; border-radius: 50%;
  top: -220px; inset-inline-end: -140px; filter: blur(80px); pointer-events: none;
  background: radial-gradient(circle, rgb(46 211 189 / .2), transparent 66%);
}
.contact > * { position: relative; }
.contact h2 { color: var(--fg-on-ink); }
.contact p { color: var(--fg-on-ink-mut); }
.contact .eyebrow { color: #4fe3cf; }

.crow { display: grid; gap: 18px; }
.citem { display: grid; grid-template-columns: auto 1fr; gap: 14px; align-items: start; }
.citem svg { width: 17px; height: 17px; color: #4fe3cf; margin-top: 5px; flex: none; }
.citem__l {
  font-size: .68rem; font-family: var(--f-mono); letter-spacing: .12em; text-transform: uppercase;
  color: var(--fg-on-ink-mut); display: block; margin-bottom: 2px;
}
html[lang="fa"] .citem__l { letter-spacing: 0; text-transform: none; font-size: .8rem; }
.citem__v { color: var(--fg-on-ink); font-size: .96rem; }
.citem a { color: #4fe3cf; }
.citem a:hover { color: #8df0e2; }

/* ---------- footer ---------- */

.ftr { border-top: 1px solid var(--line); padding-block: 38px; }
.ftr__in { display: flex; flex-wrap: wrap; gap: 18px; align-items: center; justify-content: space-between; }
.ftr p { margin: 0; font-size: .85rem; color: var(--fg-faint); }
.ftr nav { display: flex; gap: 20px; flex-wrap: wrap; }
.ftr nav a { font-size: .85rem; color: var(--fg-muted); text-decoration: none; }
.ftr nav a:hover { color: var(--accent-strong); }

/* ---------- reveal ---------- */

.rv { opacity: 0; transform: translateY(20px); transition: opacity .7s ease, transform .7s var(--ease); }
.rv[data-in="true"] { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .rv { opacity: 1; transform: none; } }

/* ---------- subpage header ---------- */

.phdr { padding-block: clamp(52px, 7vw, 88px) clamp(32px, 4vw, 48px); border-bottom: 1px solid var(--line); position: relative; overflow: clip; }
.phdr::before {
  content: ""; position: absolute; width: 520px; height: 520px; border-radius: 50%;
  top: -300px; inset-inline-start: -120px; filter: blur(90px); pointer-events: none;
  background: radial-gradient(circle, var(--accent-glow), transparent 68%);
}
.phdr > .wrap { position: relative; }
.phdr p { color: var(--fg-muted); max-width: 64ch; margin-bottom: 0; }

.filters { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 28px; }
.filters button {
  font: inherit; font-size: .865rem; font-weight: 520; padding: 8px 17px;
  background: var(--bg-elev); border: 1px solid var(--line); border-radius: 100px;
  color: var(--fg-muted); cursor: pointer; transition: all .2s;
}
.filters button:hover { border-color: var(--line-strong); color: var(--fg); }
.filters button[aria-pressed="true"] {
  background: var(--accent-strong); border-color: var(--accent-strong); color: #fff;
  box-shadow: 0 4px 14px var(--accent-glow);
}
:root[data-theme="dark"] .filters button[aria-pressed="true"] { color: #04231f; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .filters button[aria-pressed="true"] { color: #04231f; }
}

[hidden] { display: none !important; }