/* Self-hosted fonts. Only the weights this page actually uses, latin
   subset only (no vietnamese/latin-ext/cyrillic -- this page is English
   text only). Fraunces and Work Sans are variable fonts, so one file
   each covers all of their weights below; font-display:swap avoids a
   blank-text flash while they load. */
@font-face{
  font-family:"Fraunces";
  font-style:normal;
  font-weight:400 700;
  font-display:swap;
  src:url("fonts/fraunces-variable.7234ed86.woff2") format("woff2");
}
@font-face{
  font-family:"Work Sans";
  font-style:normal;
  font-weight:400 600;
  font-display:swap;
  src:url("fonts/worksans-variable.1dd49afc.woff2") format("woff2");
}
@font-face{
  font-family:"IBM Plex Mono";
  font-style:normal;
  font-weight:400;
  font-display:swap;
  src:url("fonts/ibmplexmono-400.08949f72.woff2") format("woff2");
}
@font-face{
  font-family:"IBM Plex Mono";
  font-style:normal;
  font-weight:500;
  font-display:swap;
  src:url("fonts/ibmplexmono-500.01d28544.woff2") format("woff2");
}
/* Farsi (arabic-script subset only -- this page's Latin text never needs it). */
@font-face{
  font-family:"Vazirmatn";
  font-style:normal;
  font-weight:400 700;
  font-display:swap;
  src:url("fonts/vazirmatn-variable.84a382e4.woff2") format("woff2");
  unicode-range:U+0600-06FF,U+0750-077F,U+0870-088E,U+0890-0891,U+0897-08E1,U+08E3-08FF,U+200C-200E,U+2010-2011,U+204F,U+2E41,U+FB50-FDFF,U+FE70-FE74,U+FE76-FEFC;
}
/* Applied broadly (not class-scoped) so it reaches components that set
   font-family directly on their own rule -- see hirad.dev/jewelry's
   notes/LESSONS.md, a class-scoped override missed exactly those.
   Excludes code/pre: the write-up code samples stay in English and
   monospace regardless of page language. */
html[lang="fa"] *:not(code):not(pre):not(code *):not(pre *){
  font-family:"Vazirmatn","Tahoma",sans-serif !important;
}

:root{
  --ink:#f2e9db;
  --paper:#181310;
  --saffron:#e8a93b;
  --saffron-dim:#c98f2c;
  --turquoise:#3fa9a0;
  --turquoise-dim:#2f7d76;
  --line:#3a3128;
  --muted:#a99d8c;
  --muted-dim:#7c7264;
  --surface:#221b15;
  --surface-2:#2a2119;
  --shadow: 0 20px 50px -25px rgba(0,0,0,.6);
  --accent: var(--saffron);
}
:root[data-theme="light"]{
  --ink:#211a12;
  --paper:#fbf5e9;
  --saffron:#c9821f;
  --saffron-dim:#a56a17;
  --turquoise:#1f8c82;
  --turquoise-dim:#166b63;
  --line:#e4d6bd;
  --muted:#6b5e4a;
  --muted-dim:#8b7c64;
  --surface:#f3e9d5;
  --surface-2:#ede0c6;
  --shadow: 0 16px 40px -24px rgba(90,60,10,.35);
  --accent: var(--saffron);
}
@media (prefers-color-scheme: light){
  :root:not([data-theme="dark"]){
    --ink:#211a12;
    --paper:#fbf5e9;
    --saffron:#c9821f;
    --saffron-dim:#a56a17;
    --turquoise:#1f8c82;
    --turquoise-dim:#166b63;
    --line:#e4d6bd;
    --muted:#6b5e4a;
    --muted-dim:#8b7c64;
    --surface:#f3e9d5;
    --surface-2:#ede0c6;
    --shadow: 0 16px 40px -24px rgba(90,60,10,.35);
    --accent: var(--saffron);
  }
}
*{box-sizing:border-box}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:"Work Sans", "Segoe UI", sans-serif;
  padding:0 24px;
  -webkit-font-smoothing:antialiased;
}
::selection{background:var(--saffron);color:#181310}
a{color:inherit}
a:focus-visible,button:focus-visible,.btn:focus-visible{
  outline:2px solid var(--turquoise);outline-offset:3px;border-radius:3px;
}
@media (prefers-reduced-motion: reduce){
  *{transition:none !important;animation:none !important}
}

/* SCROLL REVEAL */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .6s ease-out, transform .6s ease-out}
.reveal.in-view{opacity:1;transform:translateY(0)}
@media (prefers-reduced-motion: reduce){
  .reveal{opacity:1;transform:none;transition:none}
}
.wrap{max-width:920px;margin:0 auto}
h1,h2,h3{font-family:"Fraunces","Georgia",serif;text-wrap:balance;margin:0}
.eyebrow{
  font-family:"IBM Plex Mono", monospace;
  font-size:.72rem;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--turquoise);
}

/* NAV */
nav{
  display:flex;align-items:center;justify-content:space-between;
  padding-block:22px;
  border-bottom:1px solid var(--line);
}
.brand{display:flex;align-items:center;gap:12px}
.brand-name{font-family:"Fraunces",serif;font-size:1.05rem}
.navlinks{display:flex;gap:28px;font-size:.92rem}
.navlinks a{
  text-decoration:none;color:var(--muted);transition:color .15s;
  position:relative;padding-bottom:3px;
}
.navlinks a:hover{color:var(--accent)}
.navlinks a::after{
  content:"";position:absolute;left:0;right:100%;bottom:0;height:1px;
  background:var(--saffron);transition:right .2s ease;
}
.navlinks a.active{color:var(--ink)}
.navlinks a.active::after{right:0}
.nav-right{display:flex;align-items:center;gap:22px}
.lang-toggle{
  background:none;border:1px solid var(--line);color:var(--ink);
  font-family:"IBM Plex Mono",monospace;font-size:.72rem;font-weight:500;
  letter-spacing:.06em;padding:6px 13px;border-radius:999px;cursor:pointer;
  transition:border-color .15s, color .15s;
}
.lang-toggle:hover{border-color:var(--saffron);color:var(--saffron)}
@media (max-width:640px){
  nav{flex-wrap:wrap;row-gap:12px}
  .nav-right{flex-basis:100%;justify-content:space-between}
  .navlinks{flex-wrap:wrap;row-gap:8px}
}

/* HERO */
.hero{
  display:grid;
  grid-template-columns:1.3fr 1fr;
  gap:48px;
  align-items:center;
  padding-block:56px 44px;
  position:relative;overflow:hidden;
}
.hero h1{font-size:clamp(2.1rem,4.3vw,3.1rem);font-weight:600;line-height:1.08}
.hero .lede{
  font-size:1.08rem;line-height:1.6;color:var(--muted);
  max-width:56ch;margin-top:16px;
}
.hero-cta{display:flex;align-items:center;gap:22px;margin-top:28px;flex-wrap:wrap}
.btn{
  font-family:"Work Sans",sans-serif;font-weight:600;font-size:.92rem;
  padding:12px 22px;border-radius:6px;text-decoration:none;
  border:1px solid transparent;transition:transform .15s, background .15s;
  display:inline-block;
}
.btn:hover{transform:translateY(-1px)}
.btn-primary{background:var(--saffron);color:#181310}
.btn-primary:hover{background:var(--saffron-dim)}
.link-cta{
  font-size:.92rem;font-weight:600;color:var(--ink);text-decoration:none;
  border-bottom:1px solid var(--turquoise);padding-bottom:2px;
}
.link-cta:hover{color:var(--turquoise)}
.btn-ghost{border-color:var(--line);color:var(--ink)}
.btn-ghost:hover{border-color:var(--turquoise)}

/* SCROLL PROGRESS */
.scroll-progress{
  position:fixed;top:0;left:0;height:3px;width:0;
  background:linear-gradient(to right, var(--saffron), var(--turquoise));
  z-index:50;
}

/* ICONS */
.icon{width:18px;height:18px;flex-shrink:0;stroke:currentColor;fill:none;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}

/* HERO PATTERN */
.hero-pattern{
  position:absolute;inset:0;z-index:0;pointer-events:none;
  opacity:.5;
  background-image:
    linear-gradient(45deg, var(--line) 1px, transparent 1px),
    linear-gradient(-45deg, var(--line) 1px, transparent 1px);
  background-size:38px 38px;
  background-position:0 0;
  mask-image:radial-gradient(ellipse 60% 90% at 75% 30%, #000 0%, transparent 70%);
}
.hero-in, .hero .avatar{position:relative;z-index:1}

/* accent underline */
.squiggle{position:relative;white-space:nowrap}
.squiggle::after{
  content:"";position:absolute;left:0;right:0;bottom:-.08em;height:.16em;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 100 12' preserveAspectRatio='none'%3E%3Cpath d='M0 8 Q 12 2 25 8 T 50 8 T 75 8 T 100 8' fill='none' stroke='%23e8a93b' stroke-width='4' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-size:100% 100%;
}

/* entrance */
@keyframes rise{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:translateY(0)}}
.hero-in > *{opacity:0;animation:rise .6s ease-out forwards}
.hero-in .eyebrow{animation-delay:.05s}
.hero-in h1{animation-delay:.15s}
.hero-in .lede{animation-delay:.3s}
.hero-in .hero-cta{animation-delay:.42s}
.hero .avatar{opacity:0;animation:rise .7s ease-out .3s forwards}
@media (prefers-reduced-motion: reduce){
  .hero-in > *, .hero .avatar{opacity:1;animation:none}
}

.avatar{
  aspect-ratio:1;border-radius:50%;
  background:var(--surface);
  border:2px solid var(--line);
  box-shadow:0 0 0 6px color-mix(in srgb, var(--saffron) 14%, transparent);
  display:grid;place-items:center;
  max-width:240px;justify-self:center;
  overflow:hidden;
}
.avatar img{
  width:100%;height:100%;object-fit:cover;object-position:50% 50%;
  display:block;
}

/* SECTIONS */
section{padding-block:52px;border-top:1px solid var(--line)}
.hero-first{border-top:none}
.section-head{margin-bottom:28px}
.section-head h2{font-size:1.7rem;font-weight:600;margin-top:8px}

/* STORY */
.story p{
  font-size:1.02rem;line-height:1.75;color:var(--ink);
  max-width:64ch;
}
.story p + p{margin-top:16px}
.story .flags{
  display:flex;gap:10px;margin-top:22px;flex-wrap:wrap;
  font-family:"IBM Plex Mono",monospace;font-size:.78rem;color:var(--muted-dim);
}
.story .flags span{
  border:1px solid var(--line);border-radius:999px;padding:5px 12px;
}

/* PROJECTS */
.projects{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:20px}
.card{
  position:relative;
  background:var(--surface);border:1px solid var(--line);border-radius:10px;
  padding:22px;display:flex;flex-direction:column;gap:10px;
  box-shadow:var(--shadow);
  transition:transform .2s ease, border-color .2s ease;
}
.card:hover{transform:translateY(-4px);border-color:var(--turquoise)}
.card-clickable{cursor:pointer}
.card-cover{position:absolute;inset:0;z-index:1;border-radius:inherit}
.card-real-link{position:relative;z-index:2}
.card .kind{
  font-family:"IBM Plex Mono",monospace;font-size:.7rem;color:var(--turquoise);
  letter-spacing:.06em;text-transform:uppercase;
  display:flex;align-items:center;gap:6px;
}
.card .kind .icon{width:14px;height:14px}
.card h3{font-size:1.15rem;font-weight:600}
.card p{font-size:.9rem;line-height:1.55;color:var(--muted);margin:0;flex:1}
.card .proof{
  font-family:"IBM Plex Mono",monospace;font-size:.75rem;color:var(--muted-dim);
  border-top:1px dashed var(--line);padding-top:10px;margin-top:4px;
  font-variant-numeric:tabular-nums;
}
.card a{font-size:.85rem;color:var(--saffron);text-decoration:none;font-weight:600}
.card a:hover{text-decoration:underline}

/* SKILLS */
.skills{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:24px}
.skillgroup h3{
  font-size:1rem;font-weight:600;margin-bottom:10px;
  display:flex;align-items:center;gap:8px;
}
.skillgroup h3 .icon{color:var(--saffron)}
.skillgroup ul{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:8px}
.skillgroup li{
  font-size:.82rem;font-family:"IBM Plex Mono",monospace;
  background:var(--surface-2);border:1px solid var(--line);
  padding:5px 10px;border-radius:5px;color:var(--ink);
  transition:transform .15s ease, border-color .15s ease, color .15s ease;
}
.skillgroup li:hover{
  transform:translateY(-2px);border-color:var(--saffron);color:var(--saffron);
}

/* VERTICAL PHOTO TIMELINE - zigzag, centered spine */
.v-timeline{position:relative;padding-block:48px}
.v-timeline::before{
  content:"";position:absolute;left:50%;top:8px;bottom:8px;width:1px;
  background:var(--line);transform:translateX(-50%);
}
.v-item{
  position:relative;display:grid;
  grid-template-columns:1fr 80px 1fr;align-items:center;
  gap:0;padding-bottom:56px;
}
.v-item:last-child{padding-bottom:0}
.v-item::before{
  content:"";position:absolute;left:50%;top:50%;width:11px;height:11px;border-radius:50%;
  background:var(--saffron);border:2px solid var(--paper);outline:1px solid var(--line);
  transform:translate(-50%,-50%);z-index:1;
}
.v-item .frame{
  width:100%;max-width:420px;
  display:flex;align-items:center;justify-content:center;
  overflow:visible;
}
.v-item .frame img{
  width:auto;height:auto;max-width:100%;max-height:480px;display:block;border-radius:10px;
  box-shadow:var(--shadow);
  transition:transform .25s ease, box-shadow .25s ease;
}
.v-item:nth-child(odd) .frame img{transform-origin:70% 50%}
.v-item:nth-child(even) .frame img{transform-origin:30% 50%}
.v-item .frame:hover img{
  transform:scale(1.35) rotate(-2deg);
  box-shadow:0 24px 50px -20px rgba(0,0,0,.55);
  position:relative;z-index:2;
}
.v-item:nth-child(even) .frame:hover img{transform:scale(1.35) rotate(2deg)}
.v-item .meta{padding:10px 8px}
.v-item .yr{font-family:"IBM Plex Mono",monospace;font-size:.75rem;color:var(--turquoise)}
.v-item .yr b{color:var(--saffron)}
.v-item h4{font-size:1.05rem;font-weight:600;margin:6px 0 6px;font-family:"Work Sans",sans-serif}
.v-item p{margin:0;font-size:.9rem;color:var(--muted);line-height:1.55;max-width:38ch}

/* odd items: photo left, text right. even items: text left, photo right */
.v-item:nth-child(odd) .frame{grid-column:1;justify-self:end;margin-right:28px}
.v-item:nth-child(odd) .meta{grid-column:3;text-align:left}
.v-item:nth-child(even) .frame{grid-column:3;justify-self:start;margin-left:28px}
.v-item:nth-child(even) .meta{grid-column:1;grid-row:1;text-align:left;justify-self:end}

@media (max-width:680px){
  .v-timeline::before{left:5px;transform:none}
  .v-item{grid-template-columns:1fr;padding-left:26px}
  .v-item::before{left:5px;top:10px;transform:translate(-50%,0)}
  .v-item:nth-child(odd) .frame,
  .v-item:nth-child(even) .frame{grid-column:1;justify-self:start;max-width:220px;margin:0}
  .v-item:nth-child(odd) .meta,
  .v-item:nth-child(even) .meta{grid-column:1;grid-row:auto;text-align:left;justify-self:stretch}
}

/* SERVICES */
.services{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:20px}
.svc{
  border:1px solid var(--line);border-radius:10px;padding:20px;background:var(--surface);
  box-shadow:var(--shadow);
  transition:transform .2s ease, border-color .2s ease;
}
.svc:hover{transform:translateY(-4px);border-color:var(--turquoise)}
.svc .svc-head{display:flex;align-items:center;justify-content:space-between}
.svc .icon{width:22px;height:22px;color:var(--turquoise)}
.svc .num{font-family:"IBM Plex Mono",monospace;color:var(--muted-dim);font-size:.78rem}
.svc h3{font-size:1.05rem;font-weight:600;margin:14px 0 8px}
.svc p{font-size:.88rem;color:var(--muted);line-height:1.55;margin:0}

/* SECTION INTRO (standalone lede paragraph before a list/grid) */
.section-intro{
  font-size:.95rem;color:var(--muted);max-width:60ch;
  margin:0 0 22px;line-height:1.6;
}

/* POST (single published writeup) */
.post{
  border:1px solid var(--line);border-radius:10px;
  background:var(--surface);padding:20px 24px;box-shadow:var(--shadow);
}
/* WRITE-UP TABS: folder-style tabs attached to the top-left of the box.
   Same easing/timing family as the rest of the page: nav underline sweep, chip hover colors. */
.tabs{display:flex;gap:4px;margin-bottom:-1px;position:relative;z-index:2}
.tab{
  position:relative;overflow:hidden;
  font-family:"IBM Plex Mono",monospace;font-size:.76rem;letter-spacing:.04em;
  padding:10px 18px 9px;color:var(--muted-dim);
  background:transparent;border:1px solid transparent;border-top:0;border-radius:8px 8px 0 0;
  cursor:pointer;
  transition:color .18s ease, background .18s ease, border-color .18s ease;
}
.tab::before{
  content:"";position:absolute;left:0;right:0;top:0;height:2px;
  background:var(--turquoise);transform:scaleX(0);transform-origin:left;
  transition:transform .28s cubic-bezier(.4,0,.2,1), background .18s ease;
}
.tab:not(.is-active):hover{
  color:var(--ink);
  background:color-mix(in srgb, var(--surface-2) 60%, transparent);
}
.tab:not(.is-active):hover::before{transform:scaleX(1)}
.tab.is-active{
  color:var(--ink);background:var(--surface);
  border-color:var(--line);border-bottom-color:var(--surface);
}
.tab.is-active::before{transform:scaleX(1);background:var(--saffron)}
.tab:focus-visible{outline:2px solid var(--turquoise);outline-offset:-3px;border-radius:8px 8px 0 0}
.post{border-top-left-radius:0;position:relative}
.post.is-animating{overflow:hidden;transition:height .38s cubic-bezier(.4,0,.2,1)}
.post-panel{opacity:1;transition:opacity .2s ease}
.post-panel.is-fading{opacity:0}
.post-panel[hidden]{display:none}
.post-panel:focus-visible{outline:2px solid var(--turquoise);outline-offset:6px;border-radius:4px}
.post h3{font-size:1.2rem;font-weight:600;margin:0 0 3px}
.post .post-meta{
  font-family:"IBM Plex Mono",monospace;font-size:.72rem;color:var(--muted-dim);
  margin-bottom:12px;
}
.plain-english{
  background:var(--surface-2);border:1px solid var(--line);border-left:3px solid var(--turquoise);
  border-radius:6px;padding:14px 16px;margin:0 0 18px;
}
.plain-english .pe-label{
  display:block;font-family:"IBM Plex Mono",monospace;font-size:.7rem;letter-spacing:.08em;
  text-transform:uppercase;color:var(--turquoise);margin-bottom:6px;
}
.plain-english p{
  font-size:.9rem;line-height:1.6;color:var(--muted);margin:0;max-width:62ch;
}
.post p{font-size:.95rem;line-height:1.6;color:var(--ink);max-width:66ch;margin:0}
.post p + p{margin-top:10px}
.post code{
  font-family:"IBM Plex Mono",monospace;font-size:.85em;
  background:var(--surface-2);border:1px solid var(--line);
  padding:1px 6px;border-radius:4px;color:var(--saffron);
}
.code-frame{
  margin:12px 0 0;border-radius:8px;overflow:hidden;
  background:var(--surface-2);border:1px solid var(--line);
}
.code-frame + p{margin-top:20px}
.code-tab{
  display:flex;align-items:center;justify-content:space-between;
  padding:6px 12px;border-bottom:1px solid var(--line);
  font-family:"IBM Plex Mono",monospace;font-size:.72rem;
}
.code-filename{color:var(--muted-dim);letter-spacing:.03em}
.code-copy{
  font-family:"IBM Plex Mono",monospace;font-size:.7rem;color:var(--muted-dim);
  background:none;border:1px solid var(--line);border-radius:4px;
  padding:2px 8px;cursor:pointer;transition:color .15s ease, border-color .15s ease;
}
.code-copy:hover{color:var(--turquoise);border-color:var(--turquoise)}
.code-copy.copied{color:var(--saffron);border-color:var(--saffron)}
.code-scroll{position:relative}
.code-scroll::after{
  content:"";position:absolute;top:0;right:0;bottom:0;width:28px;
  background:linear-gradient(to right, transparent, var(--surface-2));
  pointer-events:none;
}
.post pre{
  margin:0;padding:10px 16px;overflow-x:auto;
}
.post pre code{
  background:none;border:none;padding:0;color:var(--ink);
  font-size:.82rem;line-height:1.2;white-space:pre;
  display:block;
}
.post pre .ln{display:block}
.post pre .ln-dim{opacity:.5}
.post pre .cmt{color:var(--muted-dim);font-style:italic}
.post pre .kw{color:var(--turquoise)}
.post pre .fn{color:var(--saffron)}
.post pre .lit{color:#c9a86a}
:root[data-theme="light"] .post pre .lit{color:#8a6a1f}
@media (prefers-color-scheme: light){:root:not([data-theme="dark"]) .post pre .lit{color:#8a6a1f}}

/* WRITEUPS */
.writeups{display:flex;flex-direction:column;border:1px solid var(--line);border-radius:10px;overflow:hidden;background:var(--surface)}
.wu{display:flex;justify-content:space-between;gap:16px;padding:18px 20px;align-items:baseline}
.wu + .wu{border-top:1px solid var(--line)}
.wu h4{font-size:.98rem;font-weight:600;font-family:"Work Sans",sans-serif;margin:0}
.wu .tag{font-family:"IBM Plex Mono",monospace;font-size:.72rem;color:var(--muted-dim);white-space:nowrap}
a.wu{color:inherit;text-decoration:none;transition:background .15s ease}
a.wu:hover{background:var(--surface-2)}
a.wu:hover .tag{color:var(--turquoise)}

/* CONTACT / FOOTER */
footer{padding-block:56px 40px;border-top:1px solid var(--line)}
footer h2{font-size:1.7rem;font-weight:600}
footer .lede{color:var(--muted);max-width:50ch;margin-top:12px;line-height:1.6}
.contact-row{display:flex;gap:16px;margin-top:26px;flex-wrap:wrap}
.foot-bottom{
  margin-top:44px;padding-top:18px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;
  font-size:.78rem;color:var(--muted-dim);font-family:"IBM Plex Mono",monospace;
}

@media (max-width:720px){
  .hero{grid-template-columns:1fr}
  .avatar{order:-1;max-width:130px}
}

/* favicon mark reuses these two colors directly in assets/favicon.svg;
   keep them in sync with --saffron/--turquoise above if either changes. */