/* =========================================================
   style.css — Dr. DSK Nayak — Academic & Research Portfolio
   Design tokens, base styles, components, responsive rules.
   ========================================================= */

:root{
  --bg:#0D1417;
  --panel:#131C21;
  --panel-2:#101820;
  --border:#22323A;
  --text:#E7ECEC;
  --muted:#8FA6AC;
  --muted-2:#5E7379;
  --teal:#3BCBB0;
  --teal-dim:#25534A;
  --amber:#E8A855;
  --danger:#E8746A;
  --success:#3BCBB0;
  /* extra accent colors used for a livelier, less monotone palette across
     stat cards, focus cards, tags and the gradient text/buttons */
  --violet:#9B8CFF;
  --blue:#5AA9F2;
  --pink:#F28FC0;
  --accent-gradient: linear-gradient(120deg, var(--teal), var(--blue) 55%, var(--violet));
  --radius:4px;
  --radius-lg:8px;
  --shadow-sm:0 2px 8px rgba(0,0,0,0.25);
  --shadow-md:0 8px 24px rgba(0,0,0,0.35);
  --shadow-glow:0 0 0 1px rgba(59,203,176,0.25), 0 8px 28px rgba(59,203,176,0.16);
  --container:1120px;
  --container-lg:1320px;
  --space-1:8px;
  --space-2:16px;
  --space-3:24px;
  --space-4:40px;
  --space-5:64px;
  --transition:0.2s ease;
}

/* Light theme — toggled by adding data-theme="light" to <html>.
   Kept in the same academic palette family (teal/blue/violet accents)
   so switching themes never reads as a different site. */
:root[data-theme="light"]{
  --bg:#F6F8F8;
  --panel:#FFFFFF;
  --panel-2:#EEF2F2;
  --border:#DCE4E4;
  --text:#152023;
  --muted:#516468;
  --muted-2:#7C8C8F;
  --teal-dim:#CFF0E8;
  --shadow-sm:0 2px 8px rgba(20,30,32,0.08);
  --shadow-md:0 8px 24px rgba(20,30,32,0.12);
  --shadow-glow:0 0 0 1px rgba(59,203,176,0.3), 0 8px 28px rgba(59,203,176,0.18);
}
:root[data-theme="light"] header{ background:rgba(246,248,248,0.92); }
:root[data-theme="light"] .btn-primary{ color:#00201A; }
:root[data-theme="light"] body::before{ opacity:0.6; }
:root[data-theme="light"] body::after{ opacity:0.09; }

/* ---------- Reset ---------- */
*, *::before, *::after{ box-sizing:border-box; margin:0; padding:0; }
html{ scroll-behavior:smooth; }
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior:auto; }
  *{ animation-duration:0.01ms !important; animation-iteration-count:1 !important; transition-duration:0.01ms !important; scroll-behavior:auto !important; }
}
body{
  background:var(--bg);
  color:var(--text);
  font-family:'IBM Plex Sans', system-ui, sans-serif;
  line-height:1.65;
  font-size:clamp(15px, 1.2vw + 10px, 17px);
  -webkit-text-size-adjust:100%;
  overflow-x:hidden;
  transition:background-color .3s ease, color .3s ease;
}
@media (prefers-reduced-motion: reduce){ body{ transition:none; } }
h1,h2,h3,h4,.display{ font-family:'Space Grotesk', system-ui, sans-serif; }
.mono{ font-family:'IBM Plex Mono', monospace; }
img{ max-width:100%; display:block; }
a{ color:inherit; }
button{ font-family:inherit; }
ul{ list-style:none; }
::selection{ background:var(--teal-dim); color:var(--text); }

/* ---------- Accessibility ---------- */
.skip-link{
  position:absolute; left:-999px; top:0; z-index:200;
  background:var(--teal); color:#00201A; padding:12px 20px;
  font-weight:600; border-radius:0 0 var(--radius) 0;
}
.skip-link:focus{ left:0; }
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible{
  outline:2px solid var(--teal); outline-offset:2px;
}
.visually-hidden{
  position:absolute; width:1px; height:1px; overflow:hidden; clip:rect(0 0 0 0); white-space:nowrap;
}

/* background texture */
body::before{
  content:""; position:fixed; inset:0; z-index:-1;
  background-image:repeating-linear-gradient(180deg, rgba(59,203,176,0.035) 0px, rgba(59,203,176,0.035) 1px, transparent 1px, transparent 48px);
  pointer-events:none;
}

/* soft, slow-drifting color blobs behind the hero for a livelier,
   less flat feel — purely decorative, ignored by prefers-reduced-motion */
body::after{
  content:""; position:fixed; top:-10%; left:-10%; width:70vw; height:70vw; max-width:900px; max-height:900px;
  z-index:-1; pointer-events:none; opacity:0.16;
  background:
    radial-gradient(circle at 20% 20%, var(--teal), transparent 60%),
    radial-gradient(circle at 80% 30%, var(--violet), transparent 55%),
    radial-gradient(circle at 50% 80%, var(--blue), transparent 55%);
  filter:blur(60px);
  animation:driftBlob 22s ease-in-out infinite alternate;
}
@keyframes driftBlob{
  0%{ transform:translate(0,0) scale(1); }
  100%{ transform:translate(6%, 8%) scale(1.08); }
}
@media (prefers-reduced-motion: reduce){ body::after{ animation:none; } }
@media (max-width:700px){ body::after{ opacity:0.1; } }

/* ---------- Scroll progress bar ---------- */
#scrollProgress{
  position:fixed; top:0; left:0; height:3px; width:0%;
  background:var(--teal); z-index:100; transition:width 0.1s linear;
}

/* ---------- Header / Nav ---------- */
header{
  position:sticky; top:0; z-index:90;
  background:rgba(13,20,23,0.92);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--border);
  transition:padding var(--transition), box-shadow var(--transition);
}
header.compact{ box-shadow:var(--shadow-sm); }
.nav-inner{
  max-width:var(--container); margin:0 auto; padding:14px 20px;
  display:flex; align-items:center; justify-content:space-between;
}
header.compact .nav-inner{ padding:10px 20px; }
.brand{ font-size:1rem; font-weight:600; letter-spacing:0.01em; text-decoration:none; }
.brand .accent{
  background:var(--accent-gradient); -webkit-background-clip:text; background-clip:text; color:transparent;
}
nav ul{ display:flex; gap:24px; font-size:0.84rem; letter-spacing:.02em; text-transform:uppercase; }
nav ul li a{
  text-decoration:none; color:var(--muted); transition:color var(--transition); position:relative; padding:6px 0; display:inline-block;
}
nav ul li a:hover{ color:var(--teal); }
nav ul li a.active{ color:var(--teal); }
nav ul li a.active::after{ content:""; position:absolute; left:0; right:0; bottom:-4px; height:2px; background:var(--accent-gradient); border-radius:2px; }

.theme-toggle{
  display:inline-flex; align-items:center; justify-content:center;
  width:38px; height:38px; border-radius:50%; border:1px solid var(--border);
  background:var(--panel); color:var(--text); cursor:pointer; flex:none;
  transition:border-color var(--transition), transform var(--transition), color var(--transition);
  font-size:1rem; line-height:1;
}
.theme-toggle:hover{ border-color:var(--teal); color:var(--teal); transform:translateY(-1px); }
.theme-toggle .icon-dark{ display:none; }
:root[data-theme="light"] .theme-toggle .icon-dark{ display:inline; }
:root[data-theme="light"] .theme-toggle .icon-light{ display:none; }
.nav-actions{ display:flex; align-items:center; gap:10px; }

.burger{
  display:none; flex-direction:column; gap:4px; background:none; border:none; cursor:pointer;
  padding:10px; min-width:44px; min-height:44px; align-items:center; justify-content:center;
}
.burger span{ width:22px; height:2px; background:var(--text); transition:transform var(--transition), opacity var(--transition); }
.burger.open span:nth-child(1){ transform:translateY(6px) rotate(45deg); }
.burger.open span:nth-child(2){ opacity:0; }
.burger.open span:nth-child(3){ transform:translateY(-6px) rotate(-45deg); }

@media (max-width:820px){
  nav ul{
    display:none; position:absolute; top:100%; left:0; right:0;
    background:var(--panel); flex-direction:column; gap:0;
    border-bottom:1px solid var(--border);
    max-height:0; overflow:hidden auto; transition:max-height 0.3s ease;
  }
  nav ul.open{ display:flex; max-height:70vh; }
  nav ul li{ border-top:1px solid var(--border); width:100%; }
  nav ul li a{ display:block; padding:16px 20px; min-height:44px; }
  nav ul li a.active::after{ display:none; }
  nav ul li a.active{ background:var(--panel-2); }
  .burger{ display:flex; }
}

/* ---------- Layout ---------- */
main{ max-width:var(--container); margin:0 auto; padding:0 20px; }
section{ padding:var(--space-5) 0; opacity:0; transform:translateY(24px); transition:opacity .6s ease, transform .6s ease; }
section.in-view{ opacity:1; transform:none; }
section#home{ opacity:1; transform:none; }
section + section{ border-top:1px solid var(--border); }

/* Large desktops / TVs / ultrawide: let the layout breathe instead of
   staying pinned to the same 1120px column forever. */
@media (min-width:1400px){
  .nav-inner, main, .footer-inner, .footer-bottom{ max-width:var(--container-lg); }
}

/* Small phones (most phones in portrait, iPhone SE and up) */
@media (max-width:600px){
  main{ padding:0 16px; }
  section{ padding:var(--space-4) 0; }
}

/* Extra-small phones */
@media (max-width:380px){
  main{ padding:0 14px; }
  .nav-inner{ padding:12px 14px; }
  .section-title{ margin-bottom:26px; }
}

.eyebrow{
  font-family:'IBM Plex Mono', monospace; text-transform:uppercase; letter-spacing:.14em;
  font-size:0.72rem; color:var(--teal); margin-bottom:10px; display:flex; align-items:center; gap:10px;
}
.eyebrow::before{ content:""; width:22px; height:1px; background:var(--teal); }
.section-title{ font-size:clamp(1.3rem, 2.2vw + .6rem, 1.7rem); font-weight:600; margin-bottom:36px; }
.section-lead{ color:var(--muted); max-width:70ch; margin-bottom:32px; font-size:0.95rem; }

/* ---------- Hero ---------- */
.hero{ padding:56px 0 48px; display:grid; grid-template-columns:auto 1fr; gap:36px; align-items:start; position:relative; }
.portrait-wrap{ position:relative; width:150px; height:150px; }

/* Floating research-motif glyphs drifting gently around the portrait —
   purely decorative, disabled under reduced motion and hidden on narrow
   screens where they'd just get in the way. */
.hero-float{ position:absolute; inset:0; pointer-events:none; z-index:-1; overflow:hidden; }
.hero-float span{
  position:absolute; font-family:'IBM Plex Mono', monospace; font-size:0.95rem;
  color:var(--teal); opacity:0.35; animation:floatGlyph 9s ease-in-out infinite;
}
.hero-float span:nth-child(1){ top:6%; left:8%; animation-delay:0s; color:var(--teal); }
.hero-float span:nth-child(2){ top:60%; left:2%; animation-delay:1.6s; color:var(--blue); }
.hero-float span:nth-child(3){ top:20%; left:92%; animation-delay:0.8s; color:var(--violet); }
.hero-float span:nth-child(4){ top:78%; left:88%; animation-delay:2.4s; color:var(--pink); }
.hero-float span:nth-child(5){ top:42%; left:48%; animation-delay:3.2s; color:var(--amber); }
@keyframes floatGlyph{
  0%, 100%{ transform:translateY(0) rotate(0deg); }
  50%{ transform:translateY(-14px) rotate(6deg); }
}
@media (prefers-reduced-motion: reduce){ .hero-float span{ animation:none; } }
@media (max-width:820px){ .hero-float{ display:none; } }
.portrait{
  width:150px; height:150px; border-radius:50%; object-fit:cover;
  border:2px solid var(--teal); padding:4px; background:var(--panel);
}
.portrait-fallback{
  width:150px; height:150px; border-radius:50%; border:2px solid var(--teal);
  display:flex; align-items:center; justify-content:center; background:var(--panel-2);
  font-family:'Space Grotesk',sans-serif; font-size:2.2rem; font-weight:700; color:var(--teal);
  position:absolute; top:0; left:0;
}
/* BUGFIX: an author rule that sets `display` on an element always wins over the
   browser's built-in `[hidden] { display:none }` rule, regardless of specificity —
   author styles simply outrank user-agent styles. That's why the fallback avatar
   circle was rendering (empty) directly under the photo even though `hidden` was
   set on it in the HTML. Restating display:none for [hidden] fixes it. */
.portrait-fallback[hidden]{ display:none; }
.hero h1{
  font-size:clamp(1.5rem, 3vw + .8rem, 2.3rem); font-weight:700; line-height:1.2;
  background:var(--accent-gradient); -webkit-background-clip:text; background-clip:text; color:transparent;
}
.hero .role{ color:var(--teal); font-size:1.02rem; margin-top:6px; font-weight:500; }
.hero .affil{ color:var(--muted); font-size:0.92rem; margin-top:2px; }
.hero .bio-intro{ margin-top:16px; color:var(--text); max-width:62ch; font-size:0.97rem; }

/* Live status badge: small real-time-feeling touch — a pulsing dot plus a
   ticking local-time clock (populated by initLiveStatus() in script.js). */
.live-status{
  display:inline-flex; align-items:center; gap:8px; margin-top:14px;
  font-family:'IBM Plex Mono', monospace; font-size:0.78rem; color:var(--muted);
  border:1px solid var(--border); background:var(--panel); padding:7px 12px; border-radius:999px;
}
.live-dot{ width:8px; height:8px; border-radius:50%; background:var(--teal); position:relative; flex:none; }
.live-dot::after{
  content:""; position:absolute; inset:-4px; border-radius:50%; border:1px solid var(--teal);
  animation:livePulse 2.2s ease-out infinite;
}
@keyframes livePulse{ 0%{ transform:scale(0.6); opacity:0.9; } 100%{ transform:scale(1.9); opacity:0; } }
@media (prefers-reduced-motion: reduce){ .live-dot::after{ animation:none; } }

.cta-row{ display:flex; flex-wrap:wrap; gap:12px; margin-top:24px; }
.btn{
  font-size:0.86rem; padding:11px 18px; border-radius:var(--radius); text-decoration:none;
  display:inline-flex; align-items:center; gap:8px; min-height:44px; cursor:pointer;
  transition:transform var(--transition), background var(--transition), border-color var(--transition), box-shadow var(--transition);
  border:1px solid var(--border); background:none; color:var(--text); font-weight:500;
}
.btn:hover{ transform:translateY(-2px); }
.btn-primary{
  background:var(--accent-gradient); background-size:160% 160%; color:#00201A; border-color:transparent; font-weight:600;
}
.btn-primary:hover{ box-shadow:var(--shadow-glow); background-position:100% 0; }
.btn-outline:hover{ border-color:var(--teal); color:var(--teal); }

.tags-row{ display:flex; flex-wrap:wrap; gap:8px; margin-top:20px; }
.tag{
  font-family:'IBM Plex Mono', monospace; font-size:0.72rem; letter-spacing:.03em;
  border:1px solid var(--border); color:var(--muted); padding:5px 10px; border-radius:var(--radius);
}

@media (max-width:900px) and (min-width:601px){
  .hero{ gap:26px; }
  .portrait, .portrait-wrap, .portrait-fallback{ width:130px; height:130px; }
}
@media (max-width:600px){
  .hero{ grid-template-columns:1fr; text-align:left; padding:36px 0 32px; }
  .portrait, .portrait-wrap, .portrait-fallback{ width:96px; height:96px; }
  .cta-row{ gap:8px; }
  .btn{ font-size:0.82rem; padding:10px 14px; }
}
@media (max-width:420px){
  /* full-width, stacked CTAs are easier to tap accurately on narrow phones */
  .cta-row{ flex-direction:column; }
  .btn{ width:100%; justify-content:center; }
}

/* ---------- Stats dashboard ---------- */
.stats-grid{ display:grid; grid-template-columns:repeat(4, 1fr); gap:16px; }
@media (max-width:760px){ .stats-grid{ grid-template-columns:repeat(2, 1fr); } }
@media (max-width:400px){ .stats-grid{ grid-template-columns:1fr; } }
.stat-card{
  border:1px solid var(--border); border-top:2px solid var(--stat-accent, var(--teal));
  background:var(--panel); border-radius:var(--radius-lg);
  padding:22px 18px; text-align:center;
  transition:transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.stat-card:hover{ transform:translateY(-3px); box-shadow:var(--shadow-md); }
/* cycle the four accent colors across cards for a more colorful dashboard */
.stat-card:nth-child(4n+1){ --stat-accent:var(--teal); }
.stat-card:nth-child(4n+2){ --stat-accent:var(--blue); }
.stat-card:nth-child(4n+3){ --stat-accent:var(--violet); }
.stat-card:nth-child(4n+4){ --stat-accent:var(--pink); }
.stat-num{ font-family:'IBM Plex Mono', monospace; font-size:clamp(1.6rem, 3vw, 2.1rem); color:var(--stat-accent, var(--teal)); font-weight:600; line-height:1; }
.stat-label{ font-size:0.76rem; color:var(--muted); text-transform:uppercase; letter-spacing:.06em; margin-top:8px; }

/* ---------- About ---------- */
.about-grid{ display:grid; grid-template-columns:2fr 1fr; gap:48px; }
@media (max-width:900px){ .about-grid{ grid-template-columns:1fr; gap:32px; } }
.about-text p{ color:var(--text); font-size:0.96rem; margin-bottom:16px; max-width:70ch; }
.interest-list{ display:flex; flex-direction:column; gap:10px; }
.interest-chip{
  border:1px solid var(--border); border-left:2px solid var(--int-accent, var(--teal)); background:var(--panel);
  padding:12px 14px; font-size:0.87rem; border-radius:var(--radius);
  transition:transform var(--transition), border-color var(--transition);
}
.interest-chip:hover{ transform:translateX(3px); }
.interest-chip:nth-child(5n+1){ --int-accent:var(--teal); }
.interest-chip:nth-child(5n+2){ --int-accent:var(--blue); }
.interest-chip:nth-child(5n+3){ --int-accent:var(--violet); }
.interest-chip:nth-child(5n+4){ --int-accent:var(--pink); }
.interest-chip:nth-child(5n+5){ --int-accent:var(--amber); }

/* ---------- Timeline ---------- */
.timeline{ position:relative; padding-left:26px; }
.timeline::before{ content:""; position:absolute; left:5px; top:6px; bottom:6px; width:1px; background:var(--border); }
.t-item{ position:relative; padding-bottom:30px; }
.t-item:last-child{ padding-bottom:0; }
.t-item::before{
  content:""; position:absolute; left:-26px; top:5px; width:9px; height:9px; border-radius:50%;
  background:var(--bg); border:2px solid var(--teal);
}
.t-year{ font-family:'IBM Plex Mono', monospace; color:var(--teal); font-size:0.78rem; letter-spacing:.03em; }
.t-role{ font-weight:600; font-size:1rem; margin-top:3px; }
.t-org{ color:var(--muted); font-size:0.9rem; margin-top:2px; }
.t-details{ color:var(--muted-2); font-size:0.84rem; margin-top:6px; }

.grid-2{ display:grid; grid-template-columns:1fr 1fr; gap:48px; }
@media (max-width:900px){ .grid-2{ grid-template-columns:1fr; gap:44px; } }
.col-heading{ font-size:0.78rem; text-transform:uppercase; letter-spacing:.1em; color:var(--muted-2); margin-bottom:22px; font-family:'IBM Plex Mono', monospace; }

/* ---------- Research focus cards ---------- */
.focus-grid{ display:grid; grid-template-columns:repeat(2,1fr); gap:16px; }
@media (min-width:1400px){ .focus-grid{ grid-template-columns:repeat(4,1fr); } }
@media (max-width:700px){ .focus-grid{ grid-template-columns:1fr; } }
.focus-card{
  border:1px solid var(--border); border-top:3px solid var(--focus-accent, var(--teal));
  background:var(--panel); padding:20px; border-radius:var(--radius-lg);
  transition:border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}
.focus-card:hover{ border-color:var(--focus-accent, var(--teal)); transform:translateY(-3px); box-shadow:var(--shadow-md); }
.focus-card:nth-child(4n+1){ --focus-accent:var(--teal); }
.focus-card:nth-child(4n+2){ --focus-accent:var(--blue); }
.focus-card:nth-child(4n+3){ --focus-accent:var(--violet); }
.focus-card:nth-child(4n+4){ --focus-accent:var(--pink); }
.focus-card .f-num{ font-family:'IBM Plex Mono', monospace; color:var(--focus-accent, var(--teal)); font-size:0.78rem; }
.focus-card h3{ font-size:1.02rem; margin:8px 0 8px; font-weight:600; }
.focus-card p{ color:var(--muted); font-size:0.87rem; }

/* ---------- Publications ---------- */
.pub-toolbar{ display:flex; flex-wrap:wrap; gap:12px; margin-bottom:24px; }
.pub-search{
  flex:1 1 260px; background:var(--panel); border:1px solid var(--border); color:var(--text);
  padding:12px 16px; border-radius:var(--radius); font-size:0.92rem; min-height:44px;
}
.pub-search:focus{ outline:none; border-color:var(--teal); }
.pub-search::placeholder{ color:var(--muted-2); }
.pub-select{
  background:var(--panel); border:1px solid var(--border); color:var(--text);
  padding:12px 14px; border-radius:var(--radius); font-size:0.86rem; min-height:44px;
}
.pub-count{ color:var(--muted); font-size:0.85rem; margin-bottom:18px; }
.pub-count strong{ color:var(--text); }
@media (max-width:480px){
  .pub-search, .pub-select{ flex:1 1 100%; }
}

.year-group{ border:1px solid var(--border); border-radius:var(--radius); margin-bottom:10px; overflow:hidden; background:var(--panel); }
.year-head{
  display:flex; align-items:center; justify-content:space-between; width:100%;
  background:none; border:none; color:var(--text); cursor:pointer;
  padding:16px 18px; font-family:'IBM Plex Mono', monospace; font-size:0.95rem; min-height:44px;
}
.year-head .y-count{ color:var(--muted-2); font-size:0.78rem; }
.year-head .y-chevron{ color:var(--teal); transition:transform .2s; display:inline-block; }
.year-group.open .y-chevron{ transform:rotate(90deg); }
.year-body{ max-height:0; overflow:hidden; transition:max-height .25s ease; }
.year-group.open .year-body{ max-height:none; }
.pub-item{ padding:14px 18px; border-top:1px solid var(--border); font-size:0.88rem; }
.pub-item.hidden-item{ display:none; }
.p-title{ color:var(--text); font-weight:500; }
.p-title a{ text-decoration:none; border-bottom:1px dotted var(--muted-2); }
.p-title a:hover{ color:var(--teal); border-color:var(--teal); }
.p-meta{ color:var(--muted); font-size:0.8rem; margin-top:4px; font-family:'IBM Plex Mono', monospace; }
.p-tag{
  display:inline-block; font-family:'IBM Plex Mono', monospace; font-size:0.68rem;
  color:var(--amber); border:1px solid var(--amber); border-radius:var(--radius); padding:1px 6px; margin-left:8px;
}
.p-type{
  display:inline-block; font-size:0.68rem; color:var(--teal); border:1px solid var(--teal-dim);
  background:rgba(59,203,176,.08); border-radius:var(--radius); padding:1px 6px; margin-left:8px;
}
.pub-empty{ color:var(--muted-2); font-size:0.9rem; padding:20px 0; text-align:center; }
mark{ background:var(--teal-dim); color:var(--teal); border-radius:2px; padding:0 1px; }

/* ---------- Awards / Activities ---------- */
.activity-card{
  border:1px solid var(--border); border-left:2px solid var(--amber);
  padding:16px 18px; margin-bottom:12px; border-radius:var(--radius); background:var(--panel);
}
.activity-card .a-title{ font-weight:600; font-size:0.96rem; }
.activity-card .a-meta{ color:var(--muted); font-size:0.82rem; margin-top:4px; font-family:'IBM Plex Mono', monospace; }

.review-list{ display:grid; grid-template-columns:1fr 1fr; gap:10px 30px; }
@media (max-width:600px){ .review-list{ grid-template-columns:1fr; } }
.review-list li{ display:flex; justify-content:space-between; border-bottom:1px solid var(--border); padding:8px 0; font-size:0.9rem; }
.r-count{ font-family:'IBM Plex Mono', monospace; color:var(--teal); }

/* ---------- Links / Resources ---------- */
.links-grid{ display:grid; grid-template-columns:repeat(2,1fr); gap:14px; }
@media (max-width:700px){ .links-grid{ grid-template-columns:1fr; } }
.link-card{
  display:block; border:1px solid var(--border); background:var(--panel); border-radius:var(--radius-lg);
  padding:16px 18px; text-decoration:none; transition:border-color var(--transition), transform var(--transition);
}
.link-card:hover{ border-color:var(--teal); transform:translateY(-2px); }
.link-card .l-label{ font-weight:600; color:var(--text); font-size:0.95rem; }
.link-card .l-desc{ color:var(--muted); font-size:0.82rem; margin-top:4px; }

/* ---------- Contact ---------- */
.contact-grid{ display:grid; grid-template-columns:1fr 1fr; gap:48px; }
@media (max-width:840px){ .contact-grid{ grid-template-columns:1fr; gap:36px; } }
.contact-info-list{ display:flex; flex-direction:column; gap:14px; }
.contact-info-item{ display:flex; flex-direction:column; gap:2px; font-size:0.92rem; }
.contact-info-item .ci-label{ color:var(--muted-2); font-size:0.72rem; text-transform:uppercase; letter-spacing:.08em; font-family:'IBM Plex Mono', monospace; }
.contact-info-item a{ text-decoration:none; color:var(--text); }
.contact-info-item a:hover{ color:var(--teal); }

.form-group{ margin-bottom:16px; }
.form-group label{ display:block; font-size:0.82rem; color:var(--muted); margin-bottom:6px; }
.form-group input, .form-group textarea{
  width:100%; background:var(--panel); border:1px solid var(--border); color:var(--text);
  padding:12px 14px; border-radius:var(--radius); font-family:inherit; font-size:0.92rem; min-height:44px;
}
.form-group textarea{ min-height:120px; resize:vertical; }
.form-group input:focus, .form-group textarea:focus{ outline:none; border-color:var(--teal); box-shadow:0 0 0 3px rgba(59,203,176,0.14); }
.form-error{ color:var(--danger); font-size:0.78rem; margin-top:5px; display:none; }
.form-group.invalid input, .form-group.invalid textarea{ border-color:var(--danger); }
.form-group.invalid .form-error{ display:block; }
.form-note{ color:var(--muted-2); font-size:0.78rem; margin-top:14px; }
#formStatus{ font-size:0.88rem; margin-top:14px; padding:10px 14px; border-radius:var(--radius); display:none; }
#formStatus.success{ display:block; background:rgba(59,203,176,.1); border:1px solid var(--teal-dim); color:var(--teal); }
#formStatus.error{ display:block; background:rgba(232,116,106,.1); border:1px solid var(--danger); color:var(--danger); }
.btn[disabled]{ opacity:0.6; cursor:not-allowed; }

/* ---------- Real-time "message received" toast ---------- */
/* Fires when a visitor successfully submits the contact form — gives an
   immediate, colorful confirmation rather than only a static status line. */
#contactToast{
  position:fixed; left:50%; bottom:24px; transform:translate(-50%, 20px);
  z-index:150; display:flex; align-items:center; gap:12px;
  background:var(--panel); border:1px solid var(--teal-dim); border-left:3px solid var(--teal);
  padding:14px 18px; border-radius:var(--radius-lg); box-shadow:var(--shadow-md);
  opacity:0; pointer-events:none; transition:opacity .3s ease, transform .3s ease;
  max-width:min(92vw, 420px);
}
#contactToast.show{ opacity:1; transform:translate(-50%, 0); pointer-events:auto; }
#contactToast .toast-dot{
  width:10px; height:10px; border-radius:50%; background:var(--accent-gradient); flex:none;
  animation:livePulse 1.4s ease-out infinite;
}
#contactToast .toast-title{ font-weight:600; font-size:0.9rem; }
#contactToast .toast-sub{ color:var(--muted); font-size:0.8rem; margin-top:2px; }
@media (max-width:480px){ #contactToast{ left:16px; right:16px; transform:translateY(20px); max-width:none; }
  #contactToast.show{ transform:translateY(0); } }

/* ---------- Footer ---------- */
footer{ border-top:1px solid var(--border); padding:40px 20px 60px; }
.footer-inner{ max-width:var(--container); margin:0 auto; display:flex; flex-wrap:wrap; justify-content:space-between; gap:28px; }
.footer-col h4{ font-size:0.82rem; text-transform:uppercase; letter-spacing:.08em; color:var(--muted-2); margin-bottom:14px; font-family:'IBM Plex Mono', monospace; }
.footer-col ul{ display:flex; flex-direction:column; gap:8px; }
.footer-col a{ text-decoration:none; color:var(--muted); font-size:0.86rem; }
.footer-col a:hover{ color:var(--teal); }
.footer-bottom{ max-width:var(--container); margin:32px auto 0; padding-top:20px; border-top:1px solid var(--border); text-align:center; color:var(--muted-2); font-size:0.8rem; font-family:'IBM Plex Mono', monospace; }
@media (max-width:600px){
  footer{ padding:32px 16px 84px; } /* extra bottom room so the to-top button never overlaps footer links */
  .footer-inner{ gap:24px; }
}

/* ---------- Back to top ---------- */
.to-top{
  position:fixed; right:20px; bottom:20px; z-index:60;
  width:46px; height:46px; border-radius:50%;
  background:var(--panel); border:1px solid var(--teal); color:var(--teal);
  font-size:1.1rem; cursor:pointer; opacity:0; pointer-events:none;
  transform:translateY(10px); transition:opacity .2s, transform .2s;
}
.to-top.show{ opacity:1; pointer-events:auto; transform:translateY(0); }
.to-top:hover{ background:var(--teal-dim); }

/* ---------- Card micro-interactions ---------- */
.stat-card, .focus-card, .link-card, .activity-card{
  transition:transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.stat-card:hover, .focus-card:hover, .link-card:hover, .activity-card:hover{
  transform:translateY(-3px);
  box-shadow:var(--shadow-md);
}
@media (prefers-reduced-motion: reduce){
  .stat-card:hover, .focus-card:hover, .link-card:hover, .activity-card:hover{ transform:none; }
}

/* Staggered entrance for grids of cards once their parent section reveals */
.stats-grid > *, .focus-grid > *, .links-grid > * { opacity:0; transform:translateY(14px); transition:opacity .5s ease, transform .5s ease; }
section.in-view .stats-grid > *, section.in-view .focus-grid > *, section.in-view .links-grid > * { opacity:1; transform:none; }
.stats-grid > *:nth-child(1), .focus-grid > *:nth-child(1), .links-grid > *:nth-child(1){ transition-delay:.03s; }
.stats-grid > *:nth-child(2), .focus-grid > *:nth-child(2), .links-grid > *:nth-child(2){ transition-delay:.09s; }
.stats-grid > *:nth-child(3), .focus-grid > *:nth-child(3), .links-grid > *:nth-child(3){ transition-delay:.15s; }
.stats-grid > *:nth-child(4), .focus-grid > *:nth-child(4), .links-grid > *:nth-child(4){ transition-delay:.21s; }
.stats-grid > *:nth-child(5), .focus-grid > *:nth-child(5), .links-grid > *:nth-child(5){ transition-delay:.27s; }
.stats-grid > *:nth-child(n+6), .focus-grid > *:nth-child(n+6), .links-grid > *:nth-child(n+6){ transition-delay:.32s; }
@media (prefers-reduced-motion: reduce){
  .stats-grid > *, .focus-grid > *, .links-grid > *{ opacity:1; transform:none; transition:none; }
}

/* ---------- Contact form extras: honeypot + character counter ---------- */
.hp-field{ position:absolute; left:-9999px; top:-9999px; width:1px; height:1px; overflow:hidden; }
.char-counter{ text-align:right; font-size:0.72rem; color:var(--muted-2); margin-top:4px; font-family:'IBM Plex Mono', monospace; }
.char-counter.near-limit{ color:var(--amber); }
.draft-note{ font-size:0.76rem; color:var(--teal); margin-bottom:10px; display:none; }
.draft-note.show{ display:block; }

/* ---------- Print ---------- */
@media print{
  header, .to-top, #scrollProgress, #contactToast, .hero-float, form#contactForm, .burger, .theme-toggle{ display:none !important; }
  body{ background:#fff; color:#000; }
  section{ opacity:1 !important; transform:none !important; border-top:1px solid #ccc; padding:20px 0; }
  a{ color:#000; text-decoration:underline; }
  .hero h1{ -webkit-text-fill-color:#000; background:none; }
}

/* ---------- Utility ---------- */
.text-center{ text-align:center; }
