/* ============ Tokens (overridden inline per active theme + layout preset) ============ */
:root{
  --bg:#0a0e17;
  --surface:#101728;
  --primary:#22d3ee;
  --secondary:#8b5cf6;
  --text:#e8edf5;
  --muted:#8fa0b8;
  --glass: rgba(255,255,255,.045);
  --glass-border: rgba(255,255,255,.09);
  --radius: 16px;
  --radius-pill: 100px;
  --space-section: 96px;
  --font-display:'Space Grotesk',sans-serif;
  --font-body:'Inter',system-ui,sans-serif;
  --font-mono:'JetBrains Mono',monospace;
}
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;overflow-x:hidden;}
body{
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-body);
  overflow-x:hidden;
  line-height:1.5;
  transition:background .3s ease;
}
body.lb-lock{overflow:hidden;}

/* Light-mode presets swap the glass tint, muted text and shadow strength
   so cards stay readable on a bright background instead of vanishing. */
body.theme-light{
  --glass: rgba(15,23,42,.035);
  --glass-border: rgba(15,23,42,.10);
  --muted: #5b6472;
}
body.theme-light .bg-grid{opacity:.5;}
body.theme-light .bg-glow{opacity:.14;}
body.theme-light .btn-glow{color:#ffffff;}
body.theme-light .nav-cta{color:#ffffff !important;}
body.theme-light ::selection{color:#fff;}
body.theme-light .loader-cube .face,
body.theme-light .core-cube .face{background:linear-gradient(135deg,rgba(15,23,42,.10),rgba(15,23,42,.04));}
body.theme-light .tt-btn.active{color:#ffffff;}

a{color:inherit;text-decoration:none;}
img{max-width:100%;display:block;}
::selection{background:var(--primary);color:var(--bg);}

@media (prefers-reduced-motion: reduce){
  *{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;scroll-behavior:auto !important;}
}

/* ============ Ambient background ============ */
.bg-grid{
  position:fixed;inset:0;z-index:-2;
  background-image:linear-gradient(var(--glass-border) 1px,transparent 1px),linear-gradient(90deg,var(--glass-border) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(ellipse 80% 60% at 50% 0%, #000 30%, transparent 90%);
  opacity:.4;
}
.bg-grid.subtle{opacity:.2;mask-image:none;}
/* Glow blobs are opt-in per layout preset (most presets do not use them). */
.bg-glow{position:fixed;border-radius:50%;filter:blur(120px);z-index:-1;opacity:.35;pointer-events:none;}
.bg-glow-1{width:520px;height:520px;background:var(--primary);top:-160px;right:-120px;animation:drift1 18s ease-in-out infinite;}
.bg-glow-2{width:480px;height:480px;background:var(--secondary);bottom:-160px;left:-140px;animation:drift2 22s ease-in-out infinite;}
@keyframes drift1{0%,100%{transform:translate(0,0);}50%{transform:translate(-60px,40px);}}
@keyframes drift2{0%,100%{transform:translate(0,0);}50%{transform:translate(50px,-40px);}}

/* ============ Loader ============ */
#loader{
  position:fixed;inset:0;z-index:999;background:var(--bg);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:22px;
  transition:opacity .6s ease, visibility .6s ease;
}
#loader.hidden{opacity:0;visibility:hidden;}
.loader-cube{position:relative;width:64px;height:64px;transform-style:preserve-3d;animation:cubeSpin 2.6s linear infinite;}
.loader-cube .face{position:absolute;width:64px;height:64px;border:1px solid var(--primary);background:linear-gradient(135deg,rgba(34,211,238,.18),rgba(139,92,246,.12));}
.loader-cube .f-front{transform:translateZ(32px);}
.loader-cube .f-back{transform:translateZ(-32px) rotateY(180deg);}
.loader-cube .f-right{transform:rotateY(90deg) translateZ(32px);}
.loader-cube .f-left{transform:rotateY(-90deg) translateZ(32px);}
.loader-cube .f-top{transform:rotateX(90deg) translateZ(32px);}
.loader-cube .f-bottom{transform:rotateX(-90deg) translateZ(32px);}
.loader-ring{position:absolute;inset:-22px;border:2px solid var(--secondary);border-top-color:transparent;border-radius:50%;animation:ringSpin 1.4s linear infinite;}
@keyframes cubeSpin{from{transform:rotateX(-20deg) rotateY(0);}to{transform:rotateX(-20deg) rotateY(360deg);}}
@keyframes ringSpin{to{transform:rotate(360deg);}}
.loader-text{font-family:var(--font-display);letter-spacing:.3em;font-size:13px;color:var(--muted);}
.loader-text .dot{color:var(--primary);}

/* ============ Reveal-on-scroll ============ */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .8s cubic-bezier(.2,.7,.3,1),transform .8s cubic-bezier(.2,.7,.3,1);}
.reveal.in{opacity:1;transform:none;}

/* ============ Nav (default = solid-bar; other 5 styles below) ============ */
.glass-nav{
  position:fixed;top:0;left:0;right:0;z-index:100;
  display:flex;align-items:center;justify-content:space-between;
  padding:18px 8vw;background:var(--surface);border-bottom:1px solid var(--glass-border);
  box-shadow:0 1px 0 rgba(0,0,0,.04);
}
.brand{font-family:var(--font-display);font-weight:700;font-size:18px;letter-spacing:.02em;display:flex;align-items:center;}
.brand-text{letter-spacing:.01em;}
.brand-logo{height:30px;width:auto;display:block;}
.nav-links{display:flex;gap:26px;align-items:center;font-size:13.5px;color:var(--muted);}
.nav-links a{transition:color .2s;}
.nav-links a:hover{color:var(--text);}
.nav-cta{background:linear-gradient(135deg,var(--primary),var(--secondary));color:#04101a !important;padding:8px 18px;border-radius:var(--radius-pill);font-weight:600;}
.nav-burger{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;}
.nav-burger span{width:20px;height:2px;background:var(--text);}

/* -- pill-glass: floating rounded pill with blur (desktop only) -- */
body[data-header="pill-glass"] .glass-nav{
  top:16px;left:16px;right:16px;bottom:auto;margin:0 auto;max-width:920px;
  border-radius:var(--radius-pill);padding:12px 22px;background:var(--glass);border:1px solid var(--glass-border);
}
@media(min-width:901px){
  body[data-header="pill-glass"] .glass-nav{backdrop-filter:blur(18px);}
}
@media(max-width:900px){
  body[data-header="pill-glass"] .glass-nav{background:var(--surface);}
}

/* -- split-center: logo centered, links split either side -- */
body[data-header="split-center"] .glass-nav{justify-content:center;gap:60px;position:relative;}
body[data-header="split-center"] .brand{order:0;}
@media(min-width:901px){
  body[data-header="split-center"] .glass-nav{flex-wrap:wrap;}
}

/* -- minimal-underline: no background, just a hairline, links underline on hover -- */
body[data-header="minimal-underline"] .glass-nav{background:transparent;border-bottom:1px solid var(--glass-border);}
body[data-header="minimal-underline"] .nav-links a:not(.nav-cta){position:relative;padding-bottom:3px;}
body[data-header="minimal-underline"] .nav-links a:not(.nav-cta)::after{
  content:'';position:absolute;left:0;bottom:0;width:0;height:1px;background:var(--primary);transition:width .25s ease;
}
body[data-header="minimal-underline"] .nav-links a:not(.nav-cta):hover::after{width:100%;}

/* -- boxed-card: nav sits as an inset bordered rectangle, not full width -- */
body[data-header="boxed-card"] .glass-nav{
  top:18px;left:18px;right:18px;margin:0 auto;max-width:1100px;
  border:1px solid var(--glass-border);border-radius:var(--radius);background:var(--surface);
  padding:14px 26px;
}

/* -- sidebar-left: vertical nav fixed to the left on desktop -- */
@media(min-width:901px){
  body[data-header="sidebar-left"] .glass-nav{
    top:0;left:0;right:auto;bottom:0;width:220px;height:100vh;
    flex-direction:column;align-items:flex-start;justify-content:flex-start;
    padding:32px 24px;border-right:1px solid var(--glass-border);border-bottom:none;gap:36px;
  }
  body[data-header="sidebar-left"] .nav-links{flex-direction:column;align-items:flex-start;gap:18px;}
  body[data-header="sidebar-left"] .nav-cta{margin-top:6px;}
  body[data-header="sidebar-left"] main,
  body[data-header="sidebar-left"] .site-footer{margin-left:220px;}
}

/* ============ Hero ============ */
.hero{
  min-height:100vh;display:flex;align-items:center;justify-content:space-between;gap:40px;
  padding:130px 8vw 80px;flex-wrap:wrap;
}
body[data-header="pill-glass"] .hero,
body[data-header="boxed-card"] .hero{padding-top:150px;}
.hero-copy{max-width:560px;}
.eyebrow{
  font-family:var(--font-mono);font-size:12px;letter-spacing:.12em;text-transform:uppercase;
  color:var(--primary);display:inline-block;margin-bottom:18px;
  border:1px solid var(--glass-border);padding:6px 14px;border-radius:var(--radius-pill);background:var(--glass);
}
.hero h1{
  font-family:var(--font-display);font-weight:700;font-size:clamp(38px,6vw,64px);line-height:1.04;letter-spacing:-.01em;
  margin-bottom:20px;
}
.hero-tagline{color:var(--muted);font-size:17px;max-width:480px;margin-bottom:32px;}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:36px;}
.btn-glow{
  background:linear-gradient(135deg,var(--primary),var(--secondary));color:#04101a;font-weight:700;
  padding:14px 28px;border-radius:var(--radius-pill);border:none;cursor:pointer;font-size:14px;
  box-shadow:0 8px 30px -6px var(--primary);transition:transform .25s ease, box-shadow .25s ease;
  display:inline-block;
}
.btn-glow:hover{transform:translateY(-2px);box-shadow:0 14px 40px -6px var(--primary);}
.btn-outline{
  border:1px solid var(--glass-border);padding:14px 28px;border-radius:var(--radius-pill);font-size:14px;color:var(--text);
  background:var(--glass);transition:.25s;
}
.btn-outline:hover{border-color:var(--primary);color:var(--primary);}
.hero-meta{display:flex;gap:20px;flex-wrap:wrap;font-family:var(--font-mono);font-size:12.5px;color:var(--muted);}

/* ---- Orbit signature ---- */
.hero-orbit{flex:1;min-width:340px;display:flex;justify-content:center;}
.orbit-system{position:relative;width:380px;height:380px;}
.orbit-core{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;}
.core-cube{position:relative;width:64px;height:64px;transform-style:preserve-3d;animation:coreSpin 10s linear infinite;}
.core-cube .face{position:absolute;width:64px;height:64px;border:1px solid var(--primary);background:linear-gradient(135deg,rgba(34,211,238,.25),rgba(139,92,246,.18));backdrop-filter:blur(2px);}
.core-cube .f-front{transform:translateZ(32px);}
.core-cube .f-back{transform:translateZ(-32px) rotateY(180deg);}
.core-cube .f-right{transform:rotateY(90deg) translateZ(32px);}
.core-cube .f-left{transform:rotateY(-90deg) translateZ(32px);}
.core-cube .f-top{transform:rotateX(90deg) translateZ(32px);}
.core-cube .f-bottom{transform:rotateX(-90deg) translateZ(32px);}
@keyframes coreSpin{from{transform:rotateX(-18deg) rotateY(0);}to{transform:rotateX(-18deg) rotateY(360deg);}}

.orbit-ring{position:absolute;border:1px dashed var(--glass-border);border-radius:50%;}
.ring-1{inset:70px;animation:orbit 16s linear infinite;}
.ring-2{inset:32px;animation:orbit 24s linear infinite reverse;}
.ring-3{inset:0;animation:orbit 32s linear infinite;}
@keyframes orbit{to{transform:rotate(360deg);}}
.orbit-node{
  position:absolute;top:-13px;left:50%;transform:translateX(-50%);
  font-family:var(--font-mono);font-size:10.5px;white-space:nowrap;
  background:var(--surface);border:1px solid var(--glass-border);color:var(--text);
  padding:6px 12px;border-radius:100px;animation:counterSpin 16s linear infinite;
}
.ring-2 .orbit-node{animation-duration:24s;animation-direction:reverse;}
.ring-3 .orbit-node{animation-duration:32s;}
@keyframes counterSpin{to{transform:translateX(-50%) rotate(-360deg);}}

/* ---- Highlights slider ---- */
.slider-section{padding:0 8vw;max-width:1240px;margin:20px auto 0;}
.hero-slider{position:relative;border-radius:26px;overflow:hidden;height:420px;border:1px solid var(--glass-border);}
.slider-track{position:relative;width:100%;height:100%;}
.slide{
  position:absolute;inset:0;opacity:0;transition:opacity .8s ease;
  display:flex;align-items:flex-end;
}
.slide.active{opacity:1;z-index:1;}
.slide img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0;}
.slide-copy{position:relative;z-index:2;padding:34px 40px;background:linear-gradient(0deg,rgba(4,6,11,.78),rgba(4,6,11,.05) 65%);width:100%;}
.slide-title{font-family:var(--font-display);font-size:clamp(20px,2.6vw,28px);font-weight:600;color:#fff;}
.slide-sub{color:#cbd5e1;font-size:13.5px;margin-top:6px;}
.slider-arrow{
  position:absolute;top:50%;transform:translateY(-50%);z-index:3;
  width:42px;height:42px;border-radius:50%;border:1px solid rgba(255,255,255,.25);
  background:rgba(0,0,0,.28);color:#fff;cursor:pointer;font-size:13px;
  transition:background .2s ease;
}
.slider-arrow:hover{background:rgba(0,0,0,.5);}
.slider-prev{left:18px;}
.slider-next{right:18px;}
.slider-dots{position:absolute;bottom:16px;right:24px;z-index:3;display:flex;gap:8px;}
.slider-dot{width:8px;height:8px;border-radius:50%;background:rgba(255,255,255,.35);cursor:pointer;transition:.2s;border:none;}
.slider-dot.active{background:#fff;width:22px;border-radius:100px;}
@media(max-width:900px){
  .slider-section{padding:0 6vw;margin-top:10px;}
  .hero-slider{height:280px;border-radius:20px;}
  .slide-copy{padding:22px 22px;}
}

/* ============ Sections ============ */
.section{padding:var(--space-section) 8vw;max-width:1240px;margin:0 auto;}
.section-head{margin-bottom:48px;}
.section-head h2{font-family:var(--font-display);font-size:clamp(28px,4vw,40px);font-weight:600;letter-spacing:-.01em;}

.glass-card{
  border-radius:var(--radius);
  transition:transform .3s ease, border-color .3s ease, box-shadow .3s ease;
}

/* -- solid (default): opaque surface, thin border, no blur -- */
body[data-card="solid"] .glass-card{background:var(--surface);border:1px solid var(--glass-border);}
body[data-card="solid"] .glass-card:hover{border-color:var(--primary);}

/* -- glass: translucent + blurred (the original look, now opt-in) -- */
body[data-card="glass"] .glass-card{background:var(--glass);border:1px solid var(--glass-border);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);}
body[data-card="glass"] .glass-card:hover{border-color:rgba(255,255,255,.2);}

/* -- outlined: transparent fill, visible tinted border -- */
body[data-card="outlined"] .glass-card{background:transparent;border:1.5px solid var(--glass-border);}
body[data-card="outlined"] .glass-card:hover{border-color:var(--primary);}

/* -- elevated: solid surface, soft shadow, no border -- */
body[data-card="elevated"] .glass-card{background:var(--surface);border:1px solid transparent;box-shadow:0 14px 40px rgba(0,0,0,.16);}
body.theme-light[data-card="elevated"] .glass-card{box-shadow:0 10px 30px rgba(15,23,42,.09);}
body[data-card="elevated"] .glass-card:hover{transform:translateY(-4px);}

/* -- flat-minimal: barely-there surface, no border, no shadow -- */
body[data-card="flat-minimal"] .glass-card{background:var(--surface);border:none;}

/* ---- About ---- */
.about-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:28px;align-items:stretch;}
.about-photo{overflow:hidden;padding:0;min-height:340px;}
.about-photo img{width:100%;height:100%;object-fit:cover;}
.about-bio{padding:40px;font-size:16.5px;color:var(--muted);display:flex;align-items:center;line-height:1.75;}

/* ---- Timeline ---- */
.timeline-tabs{display:flex;gap:10px;margin-bottom:36px;}
.tt-btn{background:var(--glass);border:1px solid var(--glass-border);color:var(--muted);padding:10px 20px;border-radius:var(--radius-pill);cursor:pointer;font-size:13.5px;transition:.2s;}
.tt-btn.active{color:var(--bg);background:linear-gradient(135deg,var(--primary),var(--secondary));font-weight:600;border-color:transparent;}
.timeline-rail{position:relative;padding-left:28px;border-left:1px solid var(--glass-border);display:flex;flex-direction:column;gap:26px;}
.tl-item{position:relative;padding:22px 26px;}
.tl-item::before{content:'';position:absolute;left:-33.5px;top:26px;width:9px;height:9px;border-radius:50%;background:var(--primary);box-shadow:0 0 0 4px var(--glass);}
.tl-head{display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px;margin-bottom:6px;}
.tl-role{font-weight:600;font-size:16px;}
.tl-org{color:var(--primary);font-size:13.5px;margin-bottom:8px;}
.tl-dates{font-family:var(--font-mono);font-size:12px;color:var(--muted);white-space:nowrap;}
.tl-desc{color:var(--muted);font-size:14px;line-height:1.7;}
.tl-badge{display:inline-block;font-size:10.5px;text-transform:uppercase;letter-spacing:.06em;padding:3px 10px;border-radius:100px;margin-right:8px;background:rgba(139,92,246,.15);color:var(--secondary);}
.tl-item:hover,.pub-item:hover,.skill-cat:hover{transform:translateY(-3px);}

/* ---- Publications ---- */
.pub-list{display:flex;flex-direction:column;gap:14px;}
.pub-item{padding:24px 28px;display:flex;gap:20px;align-items:flex-start;}
.pub-year{font-family:var(--font-mono);color:var(--primary);font-size:14px;min-width:52px;padding-top:2px;}
.pub-title{font-size:15.5px;font-weight:600;margin-bottom:6px;line-height:1.5;}
.pub-meta{color:var(--muted);font-size:13px;}
.pub-authors{color:var(--muted);font-size:12.5px;margin-top:4px;}
.pub-link{margin-top:10px;display:inline-block;font-size:12.5px;color:var(--primary);}

/* ---- Skills ---- */
.skills-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:20px;}
.skill-cat{padding:26px 26px 22px;}
.skill-cat h3{font-family:var(--font-display);font-size:15px;margin-bottom:18px;color:var(--primary);}
.skill-row{margin-bottom:14px;}
.skill-row:last-child{margin-bottom:0;}
.skill-row-top{display:flex;justify-content:space-between;font-size:13px;margin-bottom:6px;color:var(--muted);}
.skill-bar-bg{height:5px;border-radius:100px;background:rgba(255,255,255,.08);overflow:hidden;}
.skill-bar-fill{height:100%;border-radius:100px;background:linear-gradient(90deg,var(--primary),var(--secondary));width:0;transition:width 1.1s cubic-bezier(.2,.7,.3,1);}

/* ---- Projects ---- */
.projects-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:24px;}
.project-card{overflow:hidden;display:flex;flex-direction:column;}
.project-card:hover{transform:translateY(-6px);}
.project-img{height:170px;background:linear-gradient(135deg,rgba(34,211,238,.15),rgba(139,92,246,.15));display:flex;align-items:center;justify-content:center;overflow:hidden;}
.project-img img{width:100%;height:100%;object-fit:cover;}
.project-img .placeholder-icon{font-family:var(--font-display);font-size:34px;color:var(--muted);opacity:.5;}
.project-body{padding:22px 24px 24px;flex:1;display:flex;flex-direction:column;}
.project-status{align-self:flex-start;font-size:10.5px;text-transform:uppercase;letter-spacing:.06em;padding:4px 12px;border-radius:100px;margin-bottom:12px;}
.status-ongoing{background:rgba(34,211,238,.15);color:var(--primary);}
.status-completed{background:rgba(139,92,246,.15);color:var(--secondary);}
.project-title{font-size:17px;font-weight:600;margin-bottom:8px;}
.project-desc{color:var(--muted);font-size:13.5px;line-height:1.65;flex:1;margin-bottom:14px;}
.project-stack{font-family:var(--font-mono);font-size:11px;color:var(--muted);margin-bottom:14px;}
.project-links{display:flex;gap:14px;font-size:12.5px;}
.project-links a{color:var(--primary);}

/* ---- Gallery ---- */
.gallery-strip{display:grid;grid-auto-flow:column;grid-auto-columns:minmax(220px,1fr);gap:18px;overflow-x:auto;padding-bottom:10px;scroll-snap-type:x mandatory;}
.gallery-strip::-webkit-scrollbar{height:6px;}
.gallery-strip::-webkit-scrollbar-thumb{background:var(--glass-border);border-radius:10px;}
.gallery-photo{position:relative;border-radius:18px;overflow:hidden;height:280px;scroll-snap-align:start;border:1px solid var(--glass-border);}
.gallery-photo img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.gallery-photo:hover img{transform:scale(1.06);}
.gallery-caption{position:absolute;bottom:0;left:0;right:0;padding:14px 16px;font-size:12.5px;background:linear-gradient(0deg,rgba(0,0,0,.65),transparent);}

/* ---- Contact ---- */
.contact-card{padding:50px;display:grid;grid-template-columns:1fr 1fr;gap:50px;}
.contact-info h2{font-family:var(--font-display);font-size:clamp(24px,3vw,32px);margin:14px 0 24px;}
.contact-info ul{list-style:none;display:flex;flex-direction:column;gap:12px;font-size:14px;color:var(--muted);}
.contact-info ul a{color:var(--text);}
.contact-form{display:flex;flex-direction:column;gap:14px;}
.contact-form input,.contact-form textarea{
  background:var(--bg);border:1px solid var(--glass-border);border-radius:12px;padding:13px 16px;
  color:var(--text);font-family:inherit;font-size:14px;resize:vertical;
}
body[data-card="glass"] .contact-form input,body[data-card="glass"] .contact-form textarea{background:rgba(0,0,0,.15);}
body.theme-light .contact-form input,body.theme-light .contact-form textarea{background:rgba(15,23,42,.035);}
.contact-form input:focus,.contact-form textarea:focus{outline:none;border-color:var(--primary);}
.form-status{font-size:13px;color:var(--primary);min-height:16px;}

/* ============ Footer (default = minimal-centered; other 5 styles below) ============ */
.site-footer{border-top:1px solid var(--glass-border);}
.footer-cta,.footer-columns{display:none;}
.footer-inner{
  max-width:1240px;margin:0 auto;padding:28px 8vw;
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;
  font-size:12.5px;color:var(--muted);
}
.footer-credit{color:var(--primary);font-weight:600;}

/* -- columns: brand / links / contact laid out in three columns -- */
body[data-footer="columns"] .footer-columns{
  display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:36px;
  max-width:1240px;margin:0 auto;padding:64px 8vw 40px;
}
body[data-footer="columns"] .footer-col h4{font-family:var(--font-display);font-size:13px;margin-bottom:14px;color:var(--text);}
body[data-footer="columns"] .footer-col a{display:block;color:var(--muted);font-size:13.5px;margin-bottom:10px;transition:color .2s;}
body[data-footer="columns"] .footer-col a:hover{color:var(--primary);}
body[data-footer="columns"] .footer-logo{font-family:var(--font-display);font-weight:700;font-size:18px;}
body[data-footer="columns"] .footer-tag{color:var(--muted);font-size:13px;margin-top:10px;max-width:280px;line-height:1.6;}

/* -- big-cta: large call-to-action band before the credit line -- */
body[data-footer="big-cta"] .footer-cta{
  display:block;text-align:center;padding:70px 8vw;border-bottom:1px solid var(--glass-border);
}
body[data-footer="big-cta"] .footer-cta h3{font-family:var(--font-display);font-size:clamp(24px,3.4vw,36px);font-weight:600;margin-bottom:24px;max-width:640px;margin-left:auto;margin-right:auto;}

/* -- dark-band: footer sits on a contrasting dark strip -- */
body[data-footer="dark-band"] .site-footer{background:#04070d;border-top:none;}
body[data-footer="dark-band"] .footer-inner{color:#8896ab;}
body.theme-light[data-footer="dark-band"] .site-footer{background:#0f172a;}
body.theme-light[data-footer="dark-band"] .footer-inner{color:#94a3b8;}

/* -- social-strip: condensed contact row, centered, no headings -- */
body[data-footer="social-strip"] .footer-columns{display:flex;justify-content:center;padding:36px 8vw 10px;}
body[data-footer="social-strip"] .footer-brand,body[data-footer="social-strip"] .footer-links{display:none;}
body[data-footer="social-strip"] .footer-contact{display:flex;gap:22px;}
body[data-footer="social-strip"] .footer-contact h4{display:none;}
body[data-footer="social-strip"] .footer-contact a{color:var(--muted);font-size:13px;transition:color .2s;}
body[data-footer="social-strip"] .footer-contact a:hover{color:var(--primary);}

/* -- boxed-glass: footer floats as a rounded card above the page edge -- */
body[data-footer="boxed-glass"] .site-footer{border-top:none;padding:0 8vw 40px;}
body[data-footer="boxed-glass"] .footer-inner{
  background:var(--surface);border:1px solid var(--glass-border);border-radius:var(--radius);
  padding:26px 34px;margin-top:20px;
}

/* ---- Image protection (right-click / drag / long-press save) ---- */
.gallery-photo img,.about-photo img,.project-img img,.lightbox-frame img{
  pointer-events:none;-webkit-user-select:none;user-select:none;
  -webkit-touch-callout:none;-webkit-user-drag:none;user-drag:none;
}
.gallery-photo{cursor:zoom-in;}

/* ---- Lightbox ---- */
.lightbox{
  position:fixed;inset:0;z-index:300;background:rgba(4,6,11,.94);backdrop-filter:blur(8px);
  display:none;align-items:center;justify-content:center;flex-direction:column;padding:40px;
}
.lightbox.open{display:flex;}
.lightbox-frame{max-width:90vw;max-height:76vh;}
.lightbox-frame img{max-width:90vw;max-height:76vh;object-fit:contain;border-radius:14px;box-shadow:0 30px 80px rgba(0,0,0,.5);}
.lightbox-caption{margin-top:18px;color:var(--muted);font-size:13px;text-align:center;}
.lightbox-close{position:absolute;top:22px;right:26px;background:none;border:none;color:#fff;font-size:32px;cursor:pointer;line-height:1;}
.lightbox-nav{
  position:absolute;top:50%;transform:translateY(-50%);
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);color:#fff;
  width:44px;height:44px;border-radius:50%;cursor:pointer;font-size:14px;
}
.lightbox-prev{left:24px;}
.lightbox-next{right:24px;}
@media(max-width:600px){
  .lightbox-nav{width:38px;height:38px;}
  .lightbox-prev{left:10px;}
  .lightbox-next{right:10px;}
}

/* ---- Notes / Updates ---- */
.notes-strip{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:22px;}
.note-card{overflow:hidden;cursor:pointer;display:flex;flex-direction:column;}
.note-card-img{height:170px;overflow:hidden;}
.note-card-img img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.note-card:hover .note-card-img img{transform:scale(1.05);}
.note-card-body{padding:20px 22px 22px;}
.note-card-date{font-family:var(--font-mono);font-size:11px;color:var(--muted);}
.note-card-title{font-size:16px;font-weight:600;margin:8px 0 6px;}
.note-card-excerpt{color:var(--muted);font-size:13px;line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}

.note-viewer{
  position:fixed;inset:0;z-index:300;background:rgba(4,6,11,.94);backdrop-filter:blur(8px);
  display:none;align-items:center;justify-content:center;padding:30px;
}
.note-viewer.open{display:flex;}
.note-viewer-card{
  background:var(--surface);border-radius:var(--radius);max-width:820px;width:100%;max-height:88vh;overflow-y:auto;
}
.note-viewer-images{display:grid;grid-auto-flow:column;grid-auto-columns:85%;gap:2px;overflow-x:auto;scroll-snap-type:x mandatory;}
.note-viewer-images img{width:100%;height:320px;object-fit:cover;scroll-snap-align:start;pointer-events:none;-webkit-user-select:none;user-select:none;-webkit-user-drag:none;}
.note-viewer-body{padding:32px 36px 40px;}
.note-viewer-date{font-family:var(--font-mono);font-size:12px;color:var(--primary);}
.note-viewer-body h3{font-family:var(--font-display);font-size:24px;margin:10px 0 16px;}
.note-viewer-body p{color:var(--muted);line-height:1.8;font-size:15px;white-space:pre-line;}
@media(max-width:600px){
  .note-viewer{padding:0;}
  .note-viewer-card{max-height:100vh;height:100%;border-radius:0;}
  .note-viewer-body{padding:26px 22px 40px;}
}

/* ---- Subscribe ---- */
.subscribe-card{padding:48px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:28px;}
.subscribe-card h2{font-family:var(--font-display);font-size:clamp(22px,3vw,28px);margin-top:10px;max-width:480px;}
.subscribe-sub{color:var(--muted);font-size:14px;margin-top:10px;max-width:440px;}
.subscribe-form{display:flex;gap:12px;flex-wrap:wrap;}
.subscribe-form input{
  background:var(--bg);border:1px solid var(--glass-border);border-radius:var(--radius-pill);
  padding:14px 20px;color:var(--text);font-family:inherit;font-size:14px;min-width:240px;
}
body[data-card="glass"] .subscribe-form input{background:rgba(0,0,0,.15);}
body.theme-light .subscribe-form input{background:rgba(15,23,42,.035);}
.subscribe-form input:focus{outline:none;border-color:var(--primary);}

/* ============ Responsive ============ */
@media(max-width:900px){
  .about-grid,.contact-card{grid-template-columns:1fr;}
  .nav-links{position:fixed;top:64px;right:16px;left:16px;flex-direction:column;background:var(--surface);border:1px solid var(--glass-border);border-radius:var(--radius);padding:20px;display:none;}
  .nav-links.open{display:flex;}
  .nav-burger{display:flex;}
  .glass-nav{padding:14px 6vw;}
  body[data-header="pill-glass"] .glass-nav,
  body[data-header="boxed-card"] .glass-nav{left:12px;right:12px;top:12px;padding:10px 18px;}
  body[data-header="sidebar-left"] .glass-nav{position:fixed;top:0;left:0;right:0;width:auto;height:auto;flex-direction:row;padding:14px 6vw;border-right:none;border-bottom:1px solid var(--glass-border);}
  body[data-header="sidebar-left"] main,body[data-header="sidebar-left"] .site-footer{margin-left:0;}
  .hero{padding-top:110px;min-height:auto;padding-bottom:50px;}
  body[data-header="pill-glass"] .hero,body[data-header="boxed-card"] .hero{padding-top:120px;}
  .bg-glow{animation:none;opacity:.16;}
  .section{padding:56px 6vw;}
  .section-head{margin-bottom:32px;}
  .subscribe-card,.contact-card{padding:30px 24px;}
  .about-bio{padding:26px;font-size:15px;}
  .about-photo{min-height:220px;}
  .pub-item{padding:20px;flex-direction:column;gap:10px;}
  .contact-card{gap:30px;}
  body[data-footer="columns"] .footer-columns{grid-template-columns:1fr;gap:26px;padding:44px 6vw 30px;}
  body[data-footer="big-cta"] .footer-cta{padding:44px 6vw;}
  .footer-inner{padding:24px 6vw;}
}
@media(max-width:520px){
  .contact-card{padding:26px 20px;}
  .section{padding:48px 5vw;}
  .hero-orbit{transform:scale(.82);margin:-30px 0;}
}