/* =========================================================
   Rishabh Sharma — Portfolio · shared styles
   ========================================================= */
:root{
  --paper:#FAF9F6; --paper-2:#F2F0EA; --ink:#15171D; --ink-2:#22252E;
  --muted:#5B6270; --line:#E5E3DD; --line-dark:#2C3038;
  --accent:#0F766E; --accent-soft:#0F766E1a; --amber:#D98A2B;
  --paper-on-dark:#EDEBE4; --muted-on-dark:#9AA1AD;
  --maxw:1120px; --r:14px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{margin:0;background:var(--paper);color:var(--ink);
  font-family:"Inter",system-ui,sans-serif;font-size:17px;line-height:1.65;-webkit-font-smoothing:antialiased}
h1,h2,h3{font-family:"Fraunces",Georgia,serif;font-weight:500;line-height:1.05;letter-spacing:-.01em;margin:0}
a{color:inherit;text-decoration:none}
p{margin:0 0 1rem}
img{max-width:100%}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 28px}
.mono{font-family:"IBM Plex Mono",monospace}
.eyebrow{font-family:"IBM Plex Mono",monospace;font-size:12.5px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--accent);margin:0 0 18px;display:flex;align-items:center;gap:10px}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--accent);display:inline-block}

/* ---------- NAV ---------- */
nav{position:sticky;top:0;z-index:50;background:rgba(250,249,246,.86);
  backdrop-filter:saturate(140%) blur(10px);border-bottom:1px solid var(--line)}
.nav-in{display:flex;align-items:center;justify-content:space-between;height:66px}
.brand{display:flex;align-items:center;gap:11px;font-weight:600;letter-spacing:-.01em}
.brand .dot{width:11px;height:11px;border-radius:50%;background:var(--accent);position:relative;flex:none}
.brand .dot::after{content:"";position:absolute;inset:-5px;border:1px solid var(--accent);border-radius:50%;opacity:.35}
.nav-links{display:flex;gap:28px;align-items:center}
.nav-links a{font-size:14.5px;color:var(--muted);transition:color .2s}
.nav-links a:hover,.nav-links a.active{color:var(--ink)}
.nav-links a.active{position:relative}
.nav-links a.active::after{content:"";position:absolute;left:0;right:0;bottom:-6px;height:2px;background:var(--accent);border-radius:2px}
.nav-cta{font-size:14px;font-weight:500;color:var(--ink);border:1px solid var(--ink);
  padding:9px 18px;border-radius:999px;transition:all .2s}
.nav-cta:hover{background:var(--ink);color:var(--paper)}
.nav-cta.active::after{display:none}
.burger{display:none;background:none;border:0;cursor:pointer;padding:8px;color:var(--ink)}
.burger svg{display:block}

/* ---------- BUTTONS ---------- */
.btn{display:inline-flex;align-items:center;gap:9px;font-size:15px;font-weight:500;
  padding:13px 24px;border-radius:999px;transition:transform .18s ease, background .2s, color .2s, border-color .2s}
.btn svg{flex:none}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{transform:translateY(-2px);background:#12857c}
.btn-dark{background:var(--ink);color:var(--paper)}
.btn-dark:hover{transform:translateY(-2px);background:#000}
.btn-ghost{border:1px solid var(--line-dark);color:var(--paper-on-dark)}
.btn-ghost:hover{border-color:var(--paper-on-dark)}
.btn-outline{border:1px solid var(--ink);color:var(--ink)}
.btn-outline:hover{background:var(--ink);color:var(--paper)}
.btn-row{display:flex;gap:14px;flex-wrap:wrap}

/* ---------- HERO (home) ---------- */
.hero{background:var(--ink);color:var(--paper-on-dark);position:relative;overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;
  background:radial-gradient(600px 340px at 82% 8%, #0f766e26, transparent 70%);pointer-events:none}
.hero-in{display:grid;grid-template-columns:1.12fr .88fr;gap:48px;align-items:center;padding:84px 0 92px;position:relative}
.hero .tag{font-family:"IBM Plex Mono",monospace;font-size:12.5px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--muted-on-dark);border:1px solid var(--line-dark);border-radius:999px;
  padding:7px 15px;display:inline-flex;align-items:center;gap:9px;margin-bottom:26px}
.hero .tag i{width:6px;height:6px;border-radius:50%;background:var(--amber);display:inline-block;font-style:normal;
  box-shadow:0 0 0 0 var(--amber);animation:blip 2.6s ease-in-out infinite}
@keyframes blip{0%,100%{box-shadow:0 0 0 0 #d98a2b66}50%{box-shadow:0 0 0 6px #d98a2b00}}
.hero h1{font-size:clamp(42px,6.4vw,74px);color:#fff;letter-spacing:-.02em}
.hero h1 em{font-style:italic;color:var(--accent);font-weight:400}
.hero .lede{font-size:18px;color:var(--muted-on-dark);max-width:52ch;margin:24px 0 32px}
.hero .lede strong{color:var(--paper-on-dark);font-weight:500}
.hero-art{display:flex;justify-content:center;align-items:center}
.hero-art svg{width:100%;max-width:400px;height:auto}

/* signature graphic */
.node-label{font-family:"IBM Plex Mono",monospace;font-size:9.5px;letter-spacing:.05em;fill:var(--muted-on-dark)}
.flow{stroke:var(--accent);stroke-width:1.4;fill:none;opacity:.55;stroke-dasharray:220;stroke-dashoffset:220;animation:draw 1.6s ease forwards}
.flow-out{stroke:var(--amber);stroke-width:1.4;fill:none;opacity:.5;stroke-dasharray:220;stroke-dashoffset:220;animation:draw 1.6s ease forwards}
.src,.dest{fill:#22252E;stroke:#3a4150;stroke-width:1}
.src-dot{fill:var(--muted-on-dark)}
.dest-dot{fill:var(--amber)}
.hub-ring{fill:none;stroke:var(--accent);stroke-width:1.2;opacity:.5}
.hub{fill:var(--accent)}
.pulse{transform-origin:center;animation:pulse 3.2s ease-in-out infinite}
@keyframes draw{to{stroke-dashoffset:0}}
@keyframes pulse{0%,100%{opacity:.25;r:44}50%{opacity:.05;r:58}}
@media (prefers-reduced-motion:reduce){.flow,.flow-out{animation:none;stroke-dashoffset:0}.pulse{animation:none}.hero .tag i{animation:none}}

/* ---------- STATS STRIP ---------- */
.strip{background:var(--ink-2);color:var(--paper-on-dark);border-top:1px solid var(--line-dark)}
.strip-in{display:grid;grid-template-columns:repeat(4,1fr)}
.stat{padding:30px 26px;border-right:1px solid var(--line-dark)}
.stat:last-child{border-right:0}
.stat b{font-family:"Fraunces",serif;font-size:34px;font-weight:500;color:#fff;display:block;line-height:1}
.stat span{font-family:"IBM Plex Mono",monospace;font-size:11.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted-on-dark);display:block;margin-top:9px}

/* ---------- SECTIONS ---------- */
section{padding:92px 0}
.sec-head{max-width:62ch;margin-bottom:50px}
.sec-head h2{font-size:clamp(30px,4.4vw,46px)}
.sec-head p{color:var(--muted);font-size:18px;margin-top:18px}

/* ---------- PAGE HEADER (inner pages) ---------- */
.page-head{background:var(--ink);color:var(--paper-on-dark);position:relative;overflow:hidden}
.page-head::before{content:"";position:absolute;inset:0;background:radial-gradient(520px 300px at 85% 0%, #0f766e26, transparent 70%)}
.page-head-in{position:relative;padding:70px 0 66px}
.page-head .eyebrow{color:var(--accent)}
.page-head h1{font-size:clamp(34px,5vw,56px);color:#fff}
.page-head p{color:var(--muted-on-dark);font-size:18px;max-width:60ch;margin-top:18px}

/* ---------- WHAT I DO (home) ---------- */
.doing-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.do-card{border:1px solid var(--line);border-radius:var(--r);padding:30px 26px;background:var(--paper);transition:transform .2s,border-color .2s}
.do-card:hover{transform:translateY(-3px);border-color:#cfccc4}
.do-card .ic{width:44px;height:44px;border-radius:11px;background:var(--accent-soft);color:var(--accent);display:flex;align-items:center;justify-content:center;margin-bottom:18px}
.do-card h3{font-size:21px;margin-bottom:10px}
.do-card p{font-size:15px;color:var(--muted);margin:0}

/* ---------- ABOUT ---------- */
.about-grid{display:grid;grid-template-columns:340px 1fr;gap:56px;align-items:start}
.about-photo{position:relative;align-self:start;margin:0}
.about-photo img{position:relative;z-index:1;width:100%;aspect-ratio:1/1;object-fit:cover;border-radius:16px;border:1px solid var(--line);display:block;box-shadow:0 18px 40px -24px rgba(21,23,29,.4)}
.about-photo::before{content:"";position:absolute;right:-14px;bottom:6px;width:72%;height:72%;background:var(--accent);opacity:.12;border-radius:16px;z-index:0}
.about-photo figcaption{margin-top:20px;display:flex;flex-direction:column;gap:3px}
.about-photo .nm{font-family:"Fraunces",serif;font-size:19px;color:var(--ink)}
.about-photo .rl{font-family:"IBM Plex Mono",monospace;font-size:12px;letter-spacing:.05em;color:var(--accent)}
.about-text .lead{font-size:22px;line-height:1.5;font-family:"Fraunces",serif;font-weight:400;color:var(--ink);margin-bottom:22px}
.about-text .body p{color:var(--muted)}
.about-text .body strong{color:var(--ink);font-weight:600}
.mini-grid{display:grid;grid-template-columns:1fr 1fr;gap:26px;margin-top:34px}
.mini h4{font-family:"IBM Plex Mono",monospace;font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--accent);margin:0 0 10px}
.mini p{margin:0;color:var(--muted);font-size:15.5px}

/* ---------- PIPELINE ---------- */
.pipe{background:var(--paper-2)}
.pipe-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.step{background:var(--paper);border:1px solid var(--line);border-radius:var(--r);padding:26px 22px;position:relative}
.step .num{font-family:"IBM Plex Mono",monospace;font-size:12px;color:var(--accent);letter-spacing:.1em}
.step h3{font-size:21px;margin:14px 0 10px}
.step p{font-size:14.5px;color:var(--muted);margin:0}
.step .arw{position:absolute;right:-16px;top:34px;color:var(--line);z-index:2}
.step:last-child .arw{display:none}

/* ---------- EXPERTISE ---------- */
.exp-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.card{border:1px solid var(--line);border-radius:var(--r);padding:30px;background:var(--paper);transition:border-color .2s, transform .2s}
.card:hover{border-color:#cfccc4;transform:translateY(-2px)}
.card h3{font-size:20px;margin-bottom:6px;display:flex;align-items:center;gap:12px}
.card h3 .ix{font-family:"IBM Plex Mono",monospace;font-size:12px;color:var(--accent);border:1px solid var(--accent-soft);background:var(--accent-soft);border-radius:6px;padding:3px 8px}
.card > p{color:var(--muted);font-size:14.5px;margin:0 0 18px}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{font-family:"IBM Plex Mono",monospace;font-size:12.5px;color:var(--ink-2);background:var(--paper-2);border:1px solid var(--line);border-radius:7px;padding:6px 11px}

/* ---------- EXPERIENCE ---------- */
.job{display:grid;grid-template-columns:210px 1fr;gap:36px;padding:38px 0;border-top:1px solid var(--line)}
.job:last-child{border-bottom:1px solid var(--line)}
.job .meta .when{font-family:"IBM Plex Mono",monospace;font-size:13px;color:var(--accent);letter-spacing:.03em}
.job .meta .sector{font-family:"IBM Plex Mono",monospace;font-size:11.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin-top:10px}
.job h3{font-size:23px;margin-bottom:16px}
.job ul{margin:0;padding:0;list-style:none;display:grid;gap:11px}
.job li{position:relative;padding-left:22px;color:var(--muted);font-size:15.5px}
.job li::before{content:"";position:absolute;left:0;top:10px;width:7px;height:7px;border-radius:2px;background:var(--accent);opacity:.75}
.job li b{color:var(--ink);font-weight:600}

/* ---------- CERTS + EDUCATION ---------- */
.split{display:grid;grid-template-columns:1.4fr 1fr;gap:56px;align-items:start}
.cert-list{display:grid;gap:12px}
.cert{display:flex;align-items:center;gap:16px;padding:18px 20px;border:1px solid var(--line);border-radius:12px;background:var(--paper);transition:transform .2s,border-color .2s}
.cert:hover{transform:translateX(3px);border-color:#cfccc4}
.cert .badge{width:38px;height:38px;border-radius:9px;background:var(--accent-soft);color:var(--accent);display:flex;align-items:center;justify-content:center;flex:none}
.cert b{font-weight:600;font-size:15.5px}
.cert span{display:block;font-family:"IBM Plex Mono",monospace;font-size:11.5px;color:var(--muted);letter-spacing:.06em;margin-top:2px}
.aside-block{border-left:2px solid var(--accent);padding-left:22px;margin-bottom:34px}
.aside-block h3{font-size:19px;margin-bottom:8px;font-family:"Inter",sans-serif;font-weight:600;letter-spacing:0}
.aside-block p{color:var(--muted);font-size:15px;margin:0}
.aside-block .tiny{font-family:"IBM Plex Mono",monospace;font-size:12px;color:var(--accent);letter-spacing:.06em;margin-bottom:6px}

/* ---------- CTA BAND ---------- */
.cta{background:var(--ink);color:var(--paper-on-dark);border-radius:24px;overflow:hidden;position:relative}
.cta::before{content:"";position:absolute;inset:0;background:radial-gradient(500px 300px at 15% 100%,#0f766e2e,transparent 70%)}
.cta-in{position:relative;padding:64px 52px}
.cta h2{font-size:clamp(28px,4.4vw,46px);color:#fff;max-width:18ch}
.cta p{color:var(--muted-on-dark);font-size:18px;max-width:54ch;margin:18px 0 30px}
.cta .btn-primary{background:#fff;color:var(--ink)}
.cta .btn-primary:hover{background:#f0efe9}

/* contact detail rows */
.reach{display:flex;gap:34px;flex-wrap:wrap;margin-top:38px;padding-top:28px;border-top:1px solid var(--line-dark)}
.reach div .k{font-family:"IBM Plex Mono",monospace;font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted-on-dark)}
.reach div .v{font-size:15px;color:#fff;margin-top:4px}
.reach div .v a:hover{color:var(--accent)}

/* ---------- FOOTER ---------- */
footer{padding:40px 0 56px;border-top:1px solid var(--line);color:var(--muted)}
.foot-in{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:16px;font-size:13.5px}
.foot-nav{display:flex;gap:20px;flex-wrap:wrap}
.foot-nav a{color:var(--muted)}
.foot-nav a:hover{color:var(--ink)}
.foot-in .mono{font-size:12.5px}

/* ---------- REVEAL ---------- */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .7s ease, transform .7s ease}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}}

/* ---------- RESPONSIVE ---------- */
@media (max-width:900px){
  .nav-links{position:fixed;inset:66px 0 auto 0;background:var(--paper);border-bottom:1px solid var(--line);
    flex-direction:column;align-items:flex-start;gap:0;padding:8px 28px 20px;display:none}
  .nav-links.open{display:flex}
  .nav-links a{padding:12px 0;width:100%;border-bottom:1px solid var(--line);font-size:16px}
  .nav-links a.active::after{display:none}
  .nav-links .nav-cta{border:1px solid var(--ink);margin-top:14px;width:auto;padding:11px 20px}
  .burger{display:block}
  .hero-in{grid-template-columns:1fr;gap:22px;padding:54px 0 62px}
  .hero-art{order:-1;max-width:280px;margin:0 auto}
  .strip-in{grid-template-columns:1fr 1fr}
  .stat{border-bottom:1px solid var(--line-dark)}
  .stat:nth-child(2){border-right:0}
  .doing-grid{grid-template-columns:1fr}
  .about-grid{grid-template-columns:1fr;gap:28px}
  .about-photo{max-width:260px}
  .about-photo::before{display:none}
  .mini-grid{grid-template-columns:1fr 1fr}
  .pipe-grid{grid-template-columns:1fr 1fr}
  .step .arw{display:none}
  .exp-grid{grid-template-columns:1fr}
  .job{grid-template-columns:1fr;gap:14px;padding:30px 0}
  .split{grid-template-columns:1fr;gap:40px}
  .cta-in{padding:48px 30px}
  section{padding:70px 0}
}
@media (max-width:560px){
  body{font-size:16px}
  .wrap{padding:0 20px}
  .pipe-grid{grid-template-columns:1fr}
  .foot-in{flex-direction:column;align-items:flex-start}
}

/* ---------- CONTACT FORM ---------- */
.contact-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:start}
.form-card{background:var(--paper);border:1px solid var(--line);border-radius:var(--r);padding:32px;box-shadow:0 18px 40px -30px rgba(21,23,29,.4)}
.field{margin-bottom:18px}
.field label{display:block;font-family:"IBM Plex Mono",monospace;font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);margin-bottom:8px}
.field label .req{color:var(--accent)}
.field input,.field textarea{width:100%;font-family:"Inter",sans-serif;font-size:15.5px;color:var(--ink);background:var(--paper-2);border:1px solid var(--line);border-radius:10px;padding:12px 14px;transition:border-color .2s,background .2s,box-shadow .2s;outline:none}
.field input::placeholder,.field textarea::placeholder{color:#9a9a90}
.field input:focus,.field textarea:focus{border-color:var(--accent);background:#fff;box-shadow:0 0 0 3px var(--accent-soft)}
.field textarea{resize:vertical;min-height:132px}
.hp{position:absolute!important;left:-9999px!important;opacity:0;height:0;width:0;overflow:hidden}
.form-status{margin-top:14px;font-size:14.5px;display:none}
.form-status.show{display:block}
.form-status.ok{color:var(--accent)}
.form-status.err{color:#b4462f}
.form-note{font-size:13px;color:var(--muted);margin-top:16px}
@media (max-width:900px){.contact-grid{grid-template-columns:1fr;gap:34px}}