:root{
  --bg:#0a0c13;
  --bg-panel:#12151f;
  --bg-panel-2:#171b28;
  --bg-panel-3:#1d2130;
  --text:#e9ebf3;
  --text-dim:#8b90a6;
  --text-dimmer:#5c6178;
  --indigo:#7c6cf0;
  --indigo-dim:#4c3fa8;
  --amber:#f2a93b;
  --green:#3ddc97;
  --red:#f0637c;
  --border:#242838;
  --border-soft:#1a1e2c;
  --card-text: #4c3fa8
  --header-bg:rgba(10,12,19,0.82);
  --grid-line:rgba(255,255,255,0.025);
  --shadow-soft:0 30px 60px -30px rgba(0,0,0,0.6);
  --shadow-strong:0 30px 80px -20px rgba(0,0,0,0.7);
  --photo-tag-bg:rgba(10,12,19,0.75);
  --radius:10px;
  --font-display:'Space Grotesk',sans-serif;
  --font-body:'Inter',sans-serif;
  --font-mono:'JetBrains Mono',monospace;
  color-scheme:dark;
}
[data-theme="light"]{
  --bg:#f5f6fa;
  --bg-panel:#ffffff;
  --bg-panel-2:#f0f1f7;
  --bg-panel-3:#e7e9f2;
  --text:#1a1d29;
  --text-dim:#565b73;
  --text-dimmer:#8489a0;
  --indigo:#5b4bd6;
  --indigo-dim:#e0dbfb;
  --amber:#c9791a;
  --green:#1f9d6c;
  --red:#d43e5c;
  --border:#e0e2ec;
  --border-soft:#ececf3;
  --card-text: #c3baf5
  --header-bg:rgba(245,246,250,0.82);
  --grid-line:rgba(20,22,35,0.04);
  --shadow-soft:0 30px 60px -30px rgba(20,22,40,0.15);
  --shadow-strong:0 30px 80px -20px rgba(20,22,40,0.18);
  --photo-tag-bg:rgba(255,255,255,0.82);
  color-scheme:light;
}
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-body);
  line-height:1.6;
  overflow-x:hidden;
  transition:background-color .25s ease, color .25s ease;
  background-image:
    radial-gradient(ellipse 900px 500px at 15% -5%, rgba(124,108,240,0.14), transparent),
    radial-gradient(ellipse 700px 500px at 100% 15%, rgba(242,169,59,0.06), transparent);
}
::selection{background:var(--indigo);color:#fff;}
a{color:inherit;text-decoration:none;}
.wrap{max-width:1180px;margin:0 auto;padding:0 32px;}
@media(max-width:640px){.wrap{padding:0 20px;}}

/* Grid backdrop texture */
.grid-bg{
  position:fixed;inset:0;z-index:0;pointer-events:none;
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size:44px 44px;
  mask-image:radial-gradient(ellipse 80% 60% at 50% 0%, black 20%, transparent 75%);
}

/* ---------- NAV ---------- */
header{
  position:sticky;top:0;z-index:100;
  background:var(--header-bg);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--border-soft);
  transition:background-color .25s ease;
}
.navrow{display:flex;align-items:center;justify-content:space-between;height:64px;gap:10px;}
.brand{font-family:var(--font-display);font-weight:700;font-size:17px;letter-spacing:-0.02em;display:flex;align-items:center;gap:9px;}
.brand .dot{width:8px;height:8px;border-radius:50%;background:var(--green);box-shadow:0 0 0 3px rgba(61,220,151,0.15);animation:pulse 2.4s infinite;}
@keyframes pulse{0%,100%{opacity:1;}50%{opacity:0.4;}}
nav.links{display:flex;gap:2px;font-family:var(--font-mono);font-size:12.5px;}
nav.links a{color:var(--text-dim);padding:8px 14px;border-radius:6px;transition:color .15s, background .15s;}
nav.links a:hover{color:var(--text);background:var(--bg-panel-2);}
.navcta{font-family:var(--font-mono);font-size:12px;border:1px solid var(--border);padding:8px 16px;border-radius:6px;color:var(--text);transition:border-color .15s, background .15s;white-space:nowrap;}
.navcta:hover{border-color:var(--indigo);background:rgba(124,108,240,0.08);}
.lang-toggle{display:flex;align-items:center;justify-content:center;gap:4px;height:36px;padding:0 10px;border:1px solid var(--border);border-radius:8px;background:none;color:var(--text-dim);cursor:pointer;transition:border-color .15s,color .15s,background .15s;flex-shrink:0;font-family:var(--font-mono);font-size:11.5px;letter-spacing:0.02em;}
.lang-toggle:hover{border-color:var(--indigo);color:var(--text);}
.lang-toggle .lang-sep{color:var(--text-dimmer);}
.lang-toggle .lang-opt{opacity:0.45;transition:opacity .15s,color .15s;}
.lang-toggle .lang-opt.active{opacity:1;color:var(--indigo);font-weight:600;}
.theme-toggle{display:flex;align-items:center;justify-content:center;width:36px;height:36px;border:1px solid var(--border);border-radius:8px;background:none;color:var(--text-dim);cursor:pointer;transition:border-color .15s,color .15s,background .15s;flex-shrink:0;}
.theme-toggle:hover{border-color:var(--indigo);color:var(--text);}
.theme-toggle svg{width:16px;height:16px;}
.theme-toggle .icon-sun{display:none;}
.theme-toggle .icon-moon{display:block;}
[data-theme="light"] .theme-toggle .icon-sun{display:block;}
[data-theme="light"] .theme-toggle .icon-moon{display:none;}
.navtoggle{display:none;flex-direction:column;gap:4px;background:none;border:none;cursor:pointer;padding:8px;}
.navtoggle span{width:20px;height:2px;background:var(--text);display:block;}
@media(max-width:860px){
  nav.links{display:none;}
  .navtoggle{display:flex;}
}
@media(max-width:520px){
  .navcta{display:none;}
  .lang-toggle{padding:0 8px;}
}
.mobilemenu{display:none;flex-direction:column;padding:8px 0 18px;font-family:var(--font-mono);font-size:13px;}
.mobilemenu.open{display:flex;}
.mobilemenu a{padding:10px 4px;color:var(--text-dim);border-bottom:1px solid var(--border-soft);}

/* ---------- HERO ---------- */
.hero{position:relative;padding:76px 0 60px;z-index:1;}
.hero-grid{display:grid;grid-template-columns:1.15fr 1fr;gap:56px;align-items:start;}
@media(max-width:900px){.hero-grid{grid-template-columns:1fr;gap:40px;}}

.eyebrow{
  font-family:var(--font-mono);font-size:12.5px;color:var(--indigo);
  display:flex;align-items:center;gap:8px;margin-bottom:18px;letter-spacing:0.02em;
}
.eyebrow::before{content:'>';color:var(--text-dimmer);}
.cursor{display:inline-block;width:8px;height:15px;background:var(--indigo);animation:blink 1s step-end infinite;vertical-align:-2px;}
@keyframes blink{50%{opacity:0;}}

h1.name{
  font-family:var(--font-display);
  font-size:clamp(38px,6vw,64px);
  font-weight:700;
  letter-spacing:-0.03em;
  line-height:1.02;
  margin-bottom:14px;
}
.role-line{
  font-family:var(--font-mono);font-size:15px;color:var(--text-dim);
  margin-bottom:24px;
}
.role-line .hl{color:var(--amber);}
.hero-desc{font-size:16px;color:var(--text-dim);max-width:52ch;margin-bottom:30px;}
.hero-desc b{color:var(--text);font-weight:600;}

.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:34px;}
.btn{
  font-family:var(--font-mono);font-size:13px;padding:12px 20px;border-radius:7px;
  display:inline-flex;align-items:center;gap:8px;transition:transform .15s, box-shadow .15s, background .15s;
  border:1px solid transparent;
}
.btn-primary{background:var(--indigo);color:#fff;}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 24px rgba(124,108,240,0.35);}
.btn-ghost{border-color:var(--border);color:var(--text);}
.btn-ghost:hover{border-color:var(--text-dim);background:var(--bg-panel-2);}

.contact-row{display:flex;flex-wrap:wrap;gap:18px;font-family:var(--font-mono);font-size:12.5px;color:var(--text-dimmer);}
.contact-row a{color:var(--text-dim);transition:color .15s;}
.contact-row a:hover{color:var(--indigo);}

/* KPI dashboard panel */
.panel{
  background:linear-gradient(180deg,var(--bg-panel),var(--bg-panel-2));
  border:1px solid var(--border);border-radius:14px;
  padding:20px;box-shadow:var(--shadow-soft);
}
.panel-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px;padding-bottom:14px;border-bottom:1px dashed var(--border);}
.panel-title{font-family:var(--font-mono);font-size:11.5px;color:var(--text-dimmer);letter-spacing:0.06em;text-transform:uppercase;}
.panel-status{font-family:var(--font-mono);font-size:11px;color:var(--green);display:flex;align-items:center;gap:6px;}
.panel-status .dot{width:6px;height:6px;border-radius:50%;background:var(--green);}
.kpi-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;}
.kpi-tile{
  background:var(--bg-panel-3);border:1px solid var(--border-soft);border-radius:9px;padding:14px 14px 12px;
  transition:border-color .2s, transform .2s;
}
.kpi-tile:hover{border-color:var(--indigo-dim);transform:translateY(-2px);}
.kpi-num{font-family:var(--font-display);font-size:26px;font-weight:700;letter-spacing:-0.02em;line-height:1;margin-bottom:6px;}
.kpi-num.amber{color:var(--amber);}
.kpi-num.indigo{color:var(--indigo);}
.kpi-num.green{color:var(--green);}
.kpi-label{font-family:var(--font-mono);font-size:10.5px;color:var(--text-dimmer);line-height:1.35;text-transform:uppercase;letter-spacing:0.02em;}

/* ---------- SECTION scaffolding ---------- */
section{position:relative;z-index:1;padding:88px 0;border-top:1px solid var(--border-soft);}
@media(max-width:640px){section{padding:60px 0;}}
.sec-head{display:flex;align-items:baseline;justify-content:space-between;margin-bottom:44px;flex-wrap:wrap;gap:10px;}
.sec-eyebrow{font-family:var(--font-mono);font-size:12px;color:var(--text-dimmer);}
.sec-eyebrow span{color:var(--indigo);}
h2.sec-title{font-family:var(--font-display);font-size:clamp(26px,3.4vw,38px);font-weight:600;letter-spacing:-0.02em;}
.reveal{opacity:0;transform:translateY(22px);transition:opacity .7s ease, transform .7s ease;}
.reveal.show{opacity:1;transform:translateY(0);}

/* ---------- PROFILE ---------- */
.profile-grid{display:grid;grid-template-columns:0.9fr 1.4fr;gap:48px;}
@media(max-width:820px){.profile-grid{grid-template-columns:1fr;gap:32px;}}
.profile-photo-wrap{
  border-radius:14px;overflow:hidden;border:1px solid var(--border);
  position:relative;aspect-ratio:4/5;background:var(--bg-panel-2);
}
.profile-photo-wrap img{width:100%;height:100%;object-fit:cover;display:block;filter:grayscale(15%) contrast(1.02);}
.profile-photo-tag{position:absolute;bottom:12px;left:12px;background:var(--photo-tag-bg);backdrop-filter:blur(6px);border:1px solid var(--border);padding:6px 10px;border-radius:6px;font-family:var(--font-mono);font-size:10.5px;color:var(--green);}
.profile-text p{color:var(--text-dim);margin-bottom:16px;font-size:15.5px;}
.profile-text b{color:var(--text);font-weight:600;}
.skills-cats{margin-top:28px;display:grid;grid-template-columns:1fr 1fr;gap:14px;}
@media(max-width:520px){.skills-cats{grid-template-columns:1fr;}}
.skill-cat{border:1px solid var(--border-soft);border-radius:10px;padding:14px 16px;background:var(--bg-panel);}
.skill-cat h4{font-family:var(--font-mono);font-size:11.5px;color:var(--amber);margin-bottom:10px;letter-spacing:0.02em;text-transform:uppercase;}
.tag-row{display:flex;flex-wrap:wrap;gap:6px;}
.tag{font-family:var(--font-mono);font-size:11px;color:var(--text-dim);background:var(--bg-panel-3);border:1px solid var(--border-soft);padding:4px 9px;border-radius:5px;}

/* ---------- TIMELINE (experience/education) ---------- */
.timeline-cols{display:grid;grid-template-columns:1fr 1fr;gap:40px;}
@media(max-width:820px){.timeline-cols{grid-template-columns:1fr;}}
.col-label{font-family:var(--font-mono);font-size:11.5px;color:var(--text-dimmer);text-transform:uppercase;letter-spacing:0.06em;margin-bottom:20px;display:flex;align-items:center;gap:8px;}
.col-label::before{content:'';width:8px;height:8px;border-radius:2px;background:var(--indigo);display:inline-block;}
.tl-item{border-left:2px solid var(--border);padding:2px 0 26px 22px;position:relative;}
.tl-item::before{content:'';position:absolute;left:-8px;top:0px;width:10px;height:10px;border-radius:50%;background:var(--bg);border:2px solid var(--indigo);}
.tl-item:last-child{padding-bottom:2px;}
.tl-role{font-family:var(--font-display);font-size:17px;font-weight:600;margin-bottom:2px;}
.tl-date{font-family:var(--font-mono);font-size:11.5px;color:var(--text-dimmer);margin-bottom:10px;display:block;}
.tl-item ul{list-style:none;}
.tl-item li{color:var(--text-dim);font-size:14px;margin-bottom:7px;padding-left:16px;position:relative;}
.tl-item li::before{content:'—';position:absolute;left:0;color:var(--text-dimmer);}
.tl-item li b{color:var(--text);font-weight:600;}
.badge-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px;}
.badge{font-family:var(--font-mono);font-size:11px;background:rgba(124,108,240,0.08);border:1px solid var(--indigo-dim);color: var(--card-text);padding:6px 10px;border-radius:6px;}

/* ---------- PROJECTS ----------- */
.proj-grid{display:grid;grid-template-columns:1fr;gap:16px;}
.proj-card{
  border:1px solid var(--border);border-radius:12px;background:var(--bg-panel);
  overflow:hidden;transition:border-color .2s;
}
.proj-card:hover{border-color:var(--border);}
.proj-head{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:22px 24px;cursor:pointer;user-select:none;
}
.proj-head:hover{background:var(--bg-panel-2);}
.proj-head-left{display:flex;align-items:center;gap:16px;flex:1;min-width:0;}
.proj-head-right{display:flex;align-items:center;gap:14px;flex-shrink:0;}
.proj-idx{font-family:var(--font-mono);font-size:12px;color:var(--text-dimmer);flex-shrink:0;}
.proj-titles{min-width:0;}
.proj-title{font-family:var(--font-display);font-size:19px;font-weight:600;letter-spacing:-0.01em;}
.proj-sub{font-family:var(--font-mono);font-size:12px;color:var(--text-dimmer);margin-top:3px;}
.proj-role{font-family:var(--font-mono);font-size:10.5px;color:var(--amber);border:1px solid rgba(242,169,59,0.35);padding:4px 9px;border-radius:5px;white-space:nowrap;flex-shrink:0;}
.proj-chevron{width:18px;height:18px;flex-shrink:0;transition:transform .25s;color:var(--text-dimmer);}
.proj-card.open .proj-chevron{transform:rotate(180deg);}
@media(max-width:600px){
  .proj-head{flex-direction:column;align-items:stretch;gap:14px;}
  .proj-head-left{width:100%;}
  .proj-title{font-size:17px;}
  .proj-head-right{width:100%;padding-left:38px;gap:12px;}
  .proj-role{white-space:normal;flex:1;min-width:0;}
  .proj-chevron{flex-shrink:0;}
}
.proj-body{max-height:0;overflow:hidden;transition:max-height .35s ease;}
.proj-card.open .proj-body{max-height:1500px;}
.proj-inner{padding:0 24px 26px;border-top:1px solid var(--border-soft);}
.proj-cover{width:100%;border-radius:10px;overflow:hidden;margin-top:20px;border:1px solid var(--border-soft);}
.proj-cover img{width:100%;display:block;aspect-ratio:16/9;object-fit:cover;}
.proj-inner-grid{display:grid;grid-template-columns:1.3fr 1fr;gap:28px;margin-top:20px;}
@media(max-width:760px){.proj-inner-grid{grid-template-columns:1fr;}}
.proj-block-label{font-family:var(--font-mono);font-size:10.5px;color:var(--indigo);text-transform:uppercase;letter-spacing:0.05em;margin-bottom:8px;}
.proj-inner p{color:var(--text-dim);font-size:14px;margin-bottom:16px;}
.proj-stack-row{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;margin-top:16px;}
.proj-stack{display:flex;flex-wrap:wrap;gap:6px;}
.proj-demo-btn{display:inline-flex;align-items:center;gap:6px;font-family:var(--font-mono);font-size:12px;font-weight:600;color:var(--bg);background:var(--indigo);padding:8px 14px;border-radius:7px;white-space:nowrap;transition:opacity .2s,transform .2s;}
.proj-demo-btn:hover{opacity:0.88;transform:translateY(-1px);}
.proj-demo-btn svg{flex-shrink:0;}
.proj-metrics{display:grid;grid-template-columns:1fr 1fr;gap:10px;align-content:start;}
.metric-tile{background:var(--bg-panel-3);border:1px solid var(--border-soft);border-radius:8px;padding:12px;}
.metric-num{font-family:var(--font-display);font-weight:700;font-size:20px;color:var(--green);line-height:1;}
.metric-label{font-family:var(--font-mono);font-size:10px;color:var(--text-dimmer);margin-top:6px;line-height:1.3;}

/* ---------- ORG / AWARDS ---------- */
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:48px;}
@media(max-width:820px){.two-col{grid-template-columns:1fr;gap:36px;}}
.org-item{margin-bottom:22px;padding-bottom:22px;border-bottom:1px solid var(--border-soft);}
.org-item:last-child{border-bottom:none;}
.org-org{font-family:var(--font-mono);font-size:11px;color:var(--text-dimmer);margin-bottom:4px;}
.org-role{font-family:var(--font-display);font-weight:600;font-size:16px;margin-bottom:8px;}
.org-item p{color:var(--text-dim);font-size:13.5px;margin-bottom:4px;}
.cert-list{list-style:none;}
.cert-list li{display:flex;gap:12px;padding:11px 0;border-bottom:1px solid var(--border-soft);font-size:13.5px;}
.cert-year{font-family:var(--font-mono);color:var(--amber);font-size:12px;flex-shrink:0;width:44px;}
.cert-name{color:var(--text-dim);}
.award-item{display:flex;gap:14px;padding:14px 0;border-bottom:1px solid var(--border-soft);align-items:flex-start;}
.award-year{font-family:var(--font-mono);font-size:12px;color:var(--green);flex-shrink:0;width:44px;padding-top:2px;}
.award-name{font-size:14px;color:var(--text);}
.award-org{color:var(--text-dimmer);font-size:12.5px;}

/* ---------- ACHIEVEMENTS + PHOTOS ---------- */
.achv-list{min-width:0;}
.achv-photos{
  margin-top:16px;
}
.gallery-item{
  position:relative;border-radius:10px;overflow:hidden;
  border:1px solid var(--border-soft);background:var(--bg-panel-2);
  aspect-ratio:16/7;cursor:pointer;
}
.gallery-item img{
  width:100%;height:100%;object-fit:cover;display:block;
  filter:grayscale(10%) contrast(1.02);
  transition:transform .35s ease, filter .35s ease;
}
.gallery-item:hover img{transform:scale(1.06);filter:grayscale(0%) contrast(1.05);}

.lightbox{
  position:fixed;inset:0;z-index:200;
  background:rgba(6,7,12,0.92);backdrop-filter:blur(6px);
  display:flex;align-items:center;justify-content:center;
  padding:40px;
  opacity:0;pointer-events:none;
  transition:opacity .2s ease;
}
.lightbox.open{opacity:1;pointer-events:auto;}
.lightbox img{
  max-width:min(900px,100%);max-height:85vh;
  border-radius:10px;border:1px solid var(--border);
  box-shadow:var(--shadow-strong);
}
.lightbox-close{
  position:absolute;top:22px;right:28px;
  width:40px;height:40px;border-radius:50%;
  border:1px solid var(--border);background:var(--bg-panel);
  color:var(--text);font-size:22px;line-height:1;cursor:pointer;
  display:flex;align-items:center;justify-content:center;
  transition:border-color .15s, background .15s;
}
.lightbox-close:hover{border-color:var(--indigo);background:var(--bg-panel-2);}

/* ---------- CONTACT / FOOTER ---------- */
.contact-section{text-align:center;padding:100px 0 80px;}
.contact-section h2{font-family:var(--font-display);font-size:clamp(30px,5vw,52px);font-weight:700;letter-spacing:-0.03em;max-width:16ch;margin:0 auto 20px;}
.contact-section .sub{color:var(--text-dim);max-width:50ch;margin:0 auto 36px;font-size:16px;}
.contact-cards{display:flex;justify-content:center;gap:14px;flex-wrap:wrap;margin-top:40px;}
.ccard{border:1px solid var(--border);border-radius:10px;padding:16px 22px;background:var(--bg-panel);text-align:left;min-width:180px;transition:border-color .2s, transform .2s;}
.ccard:hover{border-color:var(--indigo);transform:translateY(-3px);}
.ccard-label{font-family:var(--font-mono);font-size:10px;color:var(--text-dimmer);text-transform:uppercase;letter-spacing:0.05em;margin-bottom:6px;}
.ccard-value{font-family:var(--font-mono);font-size:13px;color:var(--text);word-break:break-word;}
footer{border-top:1px solid var(--border-soft);padding:28px 0;}
.footer-row{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:10px;font-family:var(--font-mono);font-size:11.5px;color:var(--text-dimmer);}

@media(max-width:640px){
  .kpi-grid{grid-template-columns:1fr 1fr;}
  .timeline-cols{gap:30px;}
}