/* Tokens */
:root{
  --bg:#f7f8fa;--surface:#fff;--ink:#0e1a2b;--muted:#4f5b70;--faint:#7a8497;--line:#dfe3ea;
  --accent:#0b5fd8;--accent-ink:#fff;--accent-soft:#e8f0fd;--ok:#157f43;--warn:#92580a;
  --display:'Bricolage Grotesque',system-ui,sans-serif;
  --sans:'IBM Plex Sans',system-ui,sans-serif;
  --mono:'IBM Plex Mono',ui-monospace,monospace;
  --r:12px;--r-sm:6px;--wrap:1040px;color-scheme:light;
}
@media(prefers-color-scheme:dark){:root:not([data-theme="light"]){--bg:#0b121d;--surface:#121c2b;--ink:#e8edf5;--muted:#a3aec0;--faint:#7b869a;--line:#25324a;--accent:#5b9bff;--accent-ink:#0b121d;--accent-soft:#14233d;--ok:#4ade80;--warn:#fbbf24;color-scheme:dark}}
:root[data-theme="dark"]{--bg:#0b121d;--surface:#121c2b;--ink:#e8edf5;--muted:#a3aec0;--faint:#7b869a;--line:#25324a;--accent:#5b9bff;--accent-ink:#0b121d;--accent-soft:#14233d;--ok:#4ade80;--warn:#fbbf24;color-scheme:dark}

/* Base */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:72px}
body{font:400 16px/1.65 var(--sans);background:var(--bg);color:var(--ink);-webkit-font-smoothing:antialiased}
a{color:inherit}
ul,ol{list-style:none}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 24px}
.skip{position:absolute;left:-999px;top:8px;background:var(--accent);color:var(--accent-ink);padding:8px 14px;border-radius:var(--r-sm);z-index:200}
.skip:focus{left:8px}
h1,h2,h3{font-family:var(--display);line-height:1.15;letter-spacing:-.02em}

/* Header */
.site-header{position:sticky;top:0;z-index:100;background:color-mix(in srgb,var(--bg) 88%,transparent);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.bar{display:flex;align-items:center;gap:24px;height:60px}
.logo{font:700 17px var(--display);text-decoration:none;letter-spacing:-.01em}
.nav{display:flex;gap:4px;margin-left:auto}
.nav a{font-size:14px;color:var(--muted);text-decoration:none;padding:6px 12px;border-radius:var(--r-sm);transition:color .15s,background .15s}
.nav a:hover{color:var(--ink)}
.nav a.active{color:var(--accent);background:var(--accent-soft)}
.bar-actions{display:flex;gap:6px}
.icon-btn{width:36px;height:36px;display:grid;place-items:center;background:none;border:1px solid var(--line);border-radius:var(--r-sm);color:var(--ink);cursor:pointer;transition:border-color .15s}
.icon-btn:hover{border-color:var(--faint)}
.menu-btn{display:none}

/* Hero */
.hero{padding:clamp(56px,9vw,112px) 0 clamp(48px,7vw,88px)}
.hero-grid{display:grid;grid-template-columns:1.35fr 1fr;gap:clamp(32px,6vw,72px);align-items:center}
.kicker{font-size:14px;color:var(--accent);font-weight:500;margin-bottom:16px}
.hero h1{font-size:clamp(2.4rem,5.5vw,3.9rem);font-weight:700;margin-bottom:20px;max-width:14ch}
.lead{font-size:1.125rem;color:var(--muted);max-width:52ch;margin-bottom:32px}
.btn-row{display:flex;gap:12px;flex-wrap:wrap}
.btn{display:inline-block;font-size:14px;font-weight:500;padding:11px 22px;border-radius:var(--r-sm);text-decoration:none;border:1px solid transparent;transition:transform .15s,border-color .15s,filter .15s}
.btn-primary{background:var(--accent);color:var(--accent-ink)}
.btn-primary:hover{filter:brightness(1.1)}
.btn-ghost{border-color:var(--line);background:var(--surface)}
.btn-ghost:hover{border-color:var(--faint)}

/* Status card */
.status{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;font-family:var(--mono);font-size:13px}
.status-head{display:flex;align-items:center;gap:10px;padding:14px 18px;border-bottom:1px solid var(--line);font-weight:500;color:var(--ok)}
.pulse{width:8px;height:8px;border-radius:50%;background:currentColor;animation:pulse 2.4s ease-out infinite}
@keyframes pulse{0%{box-shadow:0 0 0 0 color-mix(in srgb,currentColor 55%,transparent)}70%,100%{box-shadow:0 0 0 8px transparent}}
.status dl div{display:grid;grid-template-columns:96px 1fr;gap:12px;padding:10px 18px;border-bottom:1px solid var(--line)}
.status dl div:last-child{border-bottom:0}
.status dt{color:var(--faint)}
.status dd{color:var(--ink)}

/* Sections */
.section{padding:clamp(56px,8vw,96px) 0}
.section.alt{background:var(--surface);border-block:1px solid var(--line)}
h2{font-size:clamp(1.6rem,3vw,2.1rem);font-weight:700;margin-bottom:12px}
.sub{color:var(--muted);max-width:60ch;margin-bottom:40px}
h3{font-size:1.0625rem;font-weight:600}
.prose p{color:var(--muted);max-width:62ch;margin-bottom:16px}
.prose strong{color:var(--ink);font-weight:600}

/* About */
.about-grid{display:grid;grid-template-columns:1.2fr 1fr;gap:clamp(32px,6vw,64px);margin-top:28px;align-items:start}
.facts{border:1px solid var(--line);border-radius:var(--r);background:var(--surface);overflow:hidden}
.facts li{padding:16px 20px;border-bottom:1px solid var(--line);display:flex;flex-direction:column}
.facts li:last-child{border-bottom:0}
.facts strong{font-size:14px;font-weight:600}
.facts span{font-size:13px;color:var(--faint)}

/* Tags */
.tags{display:flex;flex-wrap:wrap;gap:6px}
.tag{font:400 12px var(--mono);padding:4px 10px;border:1px solid var(--line);border-radius:999px;color:var(--muted);background:var(--bg)}
.tag.hl{background:var(--accent-soft);border-color:transparent;color:var(--accent)}

/* Skills */
.skill-list{border:1px solid var(--line);border-radius:var(--r);background:var(--bg)}
.skill-row{display:grid;grid-template-columns:220px 1fr;gap:24px;padding:22px 24px;border-bottom:1px solid var(--line);align-items:start}
.skill-row:last-child{border-bottom:0}
.skill-row h3{font-size:1rem;padding-top:3px}

/* Projects */
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:28px;margin-bottom:16px;transition:border-color .15s}
.card:hover{border-color:var(--faint)}
.card-head{display:flex;justify-content:space-between;align-items:flex-start;gap:16px;margin-bottom:12px}
.card p{color:var(--muted);margin-bottom:20px;max-width:70ch;font-size:15px}
.badge{font:500 12px var(--mono);padding:3px 10px;border-radius:999px;border:1px solid;white-space:nowrap}
.badge.wip{color:var(--warn)}
.badge.done{color:var(--ok)}

.group{font-size:.9375rem;color:var(--muted);font-weight:500;margin:32px 0 14px;font-family:var(--sans);letter-spacing:0}
.group:first-of-type{margin-top:0}
.proj-link{display:inline-block;margin-top:16px;font-size:14px;color:var(--accent);text-decoration:none;font-weight:500}
.proj-link:hover{text-decoration:underline}

/* Timeline */
.timeline{position:relative;margin-left:6px;padding-left:28px;border-left:1px solid var(--line)}
.timeline>li{position:relative;padding-bottom:40px}
.timeline>li:last-child{padding-bottom:0}
.timeline>li::before{content:'';position:absolute;left:-34px;top:8px;width:11px;height:11px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 4px var(--surface)}
.timeline time{font:400 12px var(--mono);color:var(--faint)}
.timeline h3{margin:4px 0 2px}
.org{font-size:14px;color:var(--accent);margin-bottom:12px}
.timeline ul li{color:var(--muted);font-size:15px;padding-left:18px;position:relative;margin-bottom:6px;max-width:68ch}
.timeline ul li::before{content:'';position:absolute;left:0;top:.72em;width:8px;height:1px;background:var(--faint)}

/* Certifications */
.cert-list{border:1px solid var(--line);border-radius:var(--r);background:var(--surface)}
.cert-list li{display:flex;justify-content:space-between;align-items:center;gap:16px;padding:18px 24px;border-bottom:1px solid var(--line)}
.cert-list li:last-child{border-bottom:0}
.cert-list strong{display:block;font-weight:600}
.cert-list span{font-size:13px;color:var(--faint)}
.cert-list em{font:normal 500 12px var(--mono);color:var(--accent);white-space:nowrap}
.cert-list .pending em{color:var(--ok)}

/* Contact */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(32px,6vw,64px);align-items:start}
.links{display:flex;flex-direction:column;gap:10px}
.link{display:flex;align-items:center;gap:14px;width:100%;padding:14px 16px;background:var(--bg);border:1px solid var(--line);border-radius:var(--r);text-decoration:none;font:inherit;color:inherit;text-align:left;cursor:pointer;transition:border-color .15s}
.link:hover{border-color:var(--accent)}
.link strong{display:block;font-size:14px;font-weight:600}
.link small{font-size:13px;color:var(--faint)}
.ico{width:34px;height:34px;flex-shrink:0;display:grid;place-items:center;background:var(--accent-soft);color:var(--accent);border-radius:var(--r-sm);font:500 13px var(--mono)}

/* Footer */
.site-footer{padding:28px 0;font-size:13px;color:var(--faint)}

/* Responsive */
@media(max-width:820px){
  .hero-grid,.about-grid,.contact-grid{grid-template-columns:1fr}
  .skill-row{grid-template-columns:1fr;gap:12px}
  .menu-btn{display:grid}
  .bar{justify-content:space-between}
  .bar-actions{margin-left:auto}
  .nav{display:none;position:absolute;top:60px;left:0;right:0;flex-direction:column;gap:0;padding:8px 24px 16px;background:var(--bg);border-bottom:1px solid var(--line)}
  .nav.open{display:flex}
  .nav a{padding:12px 0;font-size:15px}
  .nav a.active{background:none}
}
@media(max-width:520px){
  .card{padding:22px}
  .card-head{flex-direction:column;gap:10px}
  .cert-list li{padding:16px 18px}
}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation:none!important;transition:none!important}
}

/* ================= Motion ================= */

/* Scroll progress (sits on the header's bottom edge) */
.progress{position:absolute;left:0;right:0;bottom:-1px;height:2px;background:var(--accent);transform-origin:left;transform:scaleX(0)}

/* Hero intro: one orchestrated sequence */
@keyframes rise{from{opacity:0;transform:translateY(18px)}to{opacity:1;transform:none}}
@keyframes heroin{from{opacity:0;transform:translateY(26px);filter:blur(8px)}to{opacity:1;transform:none;filter:blur(0)}}
@keyframes type{from{clip-path:inset(0 100% 0 0)}to{clip-path:inset(0 -6px 0 0)}}
@keyframes caret{0%,49%{opacity:1}50%,100%{opacity:0}}
.hero .kicker{display:inline-block;position:relative;animation:type 1.3s steps(40,end) .15s both}
.hero .kicker::after{content:'';display:inline-block;width:2px;height:1em;margin-left:4px;vertical-align:-2px;background:var(--accent);opacity:0;animation:caret .9s steps(1) 1.45s 4}
.hero h1{animation:heroin 1s cubic-bezier(.2,.7,.2,1) .55s both}
.hero .lead{animation:rise .8s ease .95s both}
.hero .btn-row{animation:rise .8s ease 1.15s both}
.hero .status{animation:rise .9s ease 1.0s both}
.status dl div{animation:rise .5s ease both}
.status dl div:nth-child(1){animation-delay:1.35s}
.status dl div:nth-child(2){animation-delay:1.45s}
.status dl div:nth-child(3){animation-delay:1.55s}
.status dl div:nth-child(4){animation-delay:1.65s}
.status dl div:nth-child(5){animation-delay:1.75s}
.status dl div:nth-child(6){animation-delay:1.85s}

/* Hero background: faint grid revealed under a soft spotlight */
.hero{position:relative;isolation:isolate;overflow:hidden}
.hero::before{content:'';position:absolute;inset:0;z-index:-1;pointer-events:none;
  background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);
  background-size:44px 44px;
  -webkit-mask-image:radial-gradient(380px circle at var(--px,78%) var(--py,30%),#000,transparent 72%);
  mask-image:radial-gradient(380px circle at var(--px,78%) var(--py,30%),#000,transparent 72%)}
.hero::after{content:'';position:absolute;z-index:-1;pointer-events:none;width:560px;height:560px;left:var(--px,78%);top:var(--py,30%);
  transform:translate(-50%,-50%);background:radial-gradient(circle,color-mix(in srgb,var(--accent) 14%,transparent),transparent 65%)}

/* Deploy pipeline loop in the status card */
.pipe{display:flex;align-items:center;gap:8px;padding:14px 18px;border-top:1px solid var(--line);font-size:12px;flex-wrap:wrap}
.pipe i{width:14px;height:1px;background:var(--line)}
.stage{display:inline-flex;align-items:center;gap:6px;padding:3px 10px;border:1px solid var(--line);border-radius:999px;color:var(--faint);animation:stage 9s ease infinite 1.9s}
.stage::before{content:'';width:6px;height:6px;border-radius:50%;background:currentColor}
.stage:nth-of-type(2){animation-delay:3.5s}
.stage:nth-of-type(3){animation-delay:5.1s}
.pipe b{margin-left:auto;font-weight:500;color:var(--ok);opacity:0;animation:healthy 9s ease infinite 1.9s}
@keyframes stage{
  0%,4%{color:var(--faint);border-color:var(--line);background:transparent}
  8%,22%{color:var(--accent);border-color:var(--accent);background:var(--accent-soft)}
  28%,88%{color:var(--ok);border-color:var(--ok);background:color-mix(in srgb,var(--ok) 12%,transparent)}
  96%,100%{color:var(--faint);border-color:var(--line);background:transparent}}
@keyframes healthy{0%,58%{opacity:0;transform:translateX(-4px)}64%,90%{opacity:1;transform:none}97%,100%{opacity:0}}

/* Buttons: light sweep on hover */
.btn{position:relative;overflow:hidden}
.btn-primary::after{content:'';position:absolute;inset:0;background:linear-gradient(105deg,transparent 30%,rgba(255,255,255,.35) 50%,transparent 70%);transform:translateX(-120%);transition:transform .6s}
.btn-primary:hover::after{transform:translateX(120%)}
.btn:hover{transform:translateY(-1px)}

/* Scroll reveals (only when JS is running and motion is allowed) */
.js .reveal{opacity:0;transform:translateY(18px);transition:opacity .7s ease var(--d,0ms),transform .7s cubic-bezier(.2,.7,.2,1) var(--d,0ms)}
.js .reveal.in{opacity:1;transform:none}
.js .reveal .tag{opacity:0}
.js .reveal.in .tag{animation:pop .45s cubic-bezier(.2,.8,.3,1.3) both;animation-delay:calc(var(--d,0ms) + 180ms + var(--i,0) * 35ms)}
@keyframes pop{from{opacity:0;transform:translateY(6px) scale(.88)}to{opacity:1;transform:none}}

/* Timeline line draws itself as you scroll */
.timeline::after{content:'';position:absolute;left:-1px;top:0;width:2px;height:var(--prog,0%);background:var(--accent);transition:height .15s linear}

/* Cursor spotlight on cards, rows and links */
.card,.link,.skill-row{position:relative}
.card{overflow:hidden}
.skill-list{overflow:hidden}
.card::before,.link::before,.skill-row::before{content:'';position:absolute;inset:0;pointer-events:none;opacity:0;transition:opacity .25s;
  background:radial-gradient(320px circle at var(--mx,50%) var(--my,50%),color-mix(in srgb,var(--accent) 10%,transparent),transparent 70%)}
.card:hover::before,.link:hover::before,.skill-row:hover::before{opacity:1}
.card{transition:border-color .15s,transform .25s}
.card:hover{transform:translateY(-2px)}

/* Theme switch: circular reveal */
::view-transition-old(root),::view-transition-new(root){animation:none;mix-blend-mode:normal}
::view-transition-old(root){z-index:1}
::view-transition-new(root){z-index:2}

@media(prefers-reduced-motion:reduce){
  .stage{color:var(--ok);border-color:var(--ok)}
  .pipe b{opacity:1}
  .timeline::after{height:100%}
  .progress{display:none}
}

/* Email row with small copy button */
.link.has-copy{padding:0;gap:0;cursor:default}
.link-main{flex:1;min-width:0;display:flex;align-items:center;gap:14px;padding:14px 16px;text-decoration:none;color:inherit}
.link-main small{overflow-wrap:anywhere}
.copy-btn{display:inline-flex;align-items:center;gap:6px;margin-right:12px;padding:6px 10px;font:500 12px var(--mono);color:var(--muted);background:var(--surface);border:1px solid var(--line);border-radius:var(--r-sm);cursor:pointer;flex-shrink:0;position:relative;z-index:1;transition:color .15s,border-color .15s}
.copy-btn:hover{color:var(--accent);border-color:var(--accent)}