@import url("https://fonts.googleapis.com/css2?family=Roboto:wght@400;500;600;700&display=swap");

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
:root {
  color-scheme: light;
  --bg: #ffffff;
  --bg-tint: #f7f8fb;              /* subtle alternating section wash */
  --surface: rgba(255,255,255,0.80);
  --surface-strong: #ffffff;
  --text: #0c0e14;
  --text-muted: #434857;
  --text-soft: #717784;
  --border: rgba(12,14,20,0.09);
  --border-strong: rgba(12,14,20,0.14);
  --shadow: rgba(16,22,40,0.08);
  --shadow-strong: rgba(16,22,40,0.14);
  --hover-bg: rgba(12,14,20,0.04);

  /* Monochrome: "accent" resolves to black (text color) in light mode */
  --accent: #0c0e14;
  --accent-strong: #000000;
  --accent-soft: rgba(12,14,20,0.07);
  --ring: rgba(12,14,20,0.40);

  --font-display: "Roboto", system-ui, -apple-system, sans-serif;
  --font-body: "Roboto", system-ui, -apple-system, sans-serif;

  /* Consistent type scale used across the whole portfolio */
  --fs-meta: 0.8rem;      /* eyebrows, dates, chips, buttons, captions */
  --fs-body: 0.9rem;      /* all paragraph / descriptive text */
  --fs-subhead: 1rem;     /* content sub-headings: project & institution titles */
  --fs-lead: 1.05rem;     /* hero role line */
}
body {
  font-family: var(--font-body);
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden; /* IMPORTANT: prevents horizontal scroll on mobile */
}
body.dark-mode {
  color-scheme: dark;
  --bg: #07090f;
  --bg-tint: #0b0e16;
  --surface: rgba(17, 21, 31, 0.80);
  --surface-strong: #11151f;
  --text: #f4f5f8;
  --text-muted: #c7cbd5;
  --text-soft: #95a0b7;
  --border: rgba(255,255,255,0.12);
  --border-strong: rgba(255,255,255,0.16);
  --shadow: rgba(0,0,0,0.28);
  --shadow-strong: rgba(0,0,0,0.42);
  --hover-bg: rgba(255,255,255,0.06);

  /* Monochrome: "accent" resolves to white (text color) in dark mode */
  --accent: #f4f5f8;
  --accent-strong: #ffffff;
  --accent-soft: rgba(255,255,255,0.12);
  --ring: rgba(255,255,255,0.45);
}

body.dark-mode .tree-node{
  background: var(--surface-strong) !important;
  border-color: var(--border) !important;
  box-shadow: 0 10px 22px rgba(0,0,0,0.24) !important;
}
body.dark-mode .tree-node:hover{
  box-shadow: 0 14px 30px rgba(0,0,0,0.30) !important;
}
body.dark-mode .tree-node span{
  color: var(--text-soft) !important;
}
body.dark-mode .tree-top::before,
body.dark-mode .tree-branch::before,
body.dark-mode .tree-branch::after,
body.dark-mode .branch-left,
body.dark-mode .branch-right{
  background: rgba(255,255,255,0.18) !important;
}
body.dark-mode .hero-photo{
  border-color: rgba(255,255,255,0.12);
}
body.dark-mode .about-pic{
  border-color: rgba(255,255,255,0.12);
}
body.dark-mode .menu-links{
  box-shadow: 0 12px 30px rgba(0,0,0,0.35);
}

img { max-width: 100%; height: auto; display: block; }

h1, h2, h3, h4 { font-family: var(--font-display); letter-spacing: -0.015em; }

a { color: var(--text); text-decoration: none; }
a:hover { color: var(--text-soft); }

p { color: var(--text-muted); }

/* Inline links within body copy get the accent + underline affordance */
.about-text a,
.project-desc a{
  color: var(--accent);
  font-weight: 600;
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 2px;
}
.about-text a:hover,
.project-desc a:hover{ color: var(--accent-strong); }

.container{
  width: min(1180px, 92%);
  margin: 0 auto;
}

.section-divider{
  border: none;
  border-top: 1px solid rgba(0,0,0,0.12);
  width: min(1180px, 92%);
  margin: 2.2rem auto;
}

/* ===================== NAV ===================== */
#desktop-nav{
  display:flex;
  justify-content: space-between;
  align-items:center;
  padding: 1.3rem 0;
}

.logo{
  font-size: 0.95rem;
  font-weight: 600;
}

.nav-links{
  list-style:none;
  display:flex;
  gap: 1.7rem;
  font-size: 0.88rem;
}

.nav-links a{
  padding-bottom: 0.2rem;
}

.nav-links a:hover{
  border-bottom: 2px solid rgba(0,0,0,0.25);
}

.nav-actions{
  display:flex;
  align-items:center;
  gap: 1rem;
}

.theme-toggle{
  display:flex;
  align-items:center;
  gap: 0.45rem;
  padding: 0.45rem 0.85rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface-strong);
  color: var(--text);
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease, border-color 180ms ease;
  min-height: 38px;
}

.theme-toggle:hover{
  transform: translateY(-1px);
  background: var(--hover-bg);
}

.theme-toggle__icon{
  font-size: 1rem;
}

.theme-toggle--mobile{
  display:none;
}

@media (max-width: 980px) {
  .theme-toggle--mobile{
    display:flex;
  }
}

/* Hamburger */
#hamburger-nav{ display:none; padding: 1.2rem 0; }
.hamburger-menu{ position: relative; }
.hamburger-icon{
  border: none;
  background: transparent;
  width: 44px;          /* better tap target */
  height: 34px;
  padding: 4px;
  display:flex;
  flex-direction: column;
  justify-content: space-between;
  cursor:pointer;
}
.hamburger-icon span{
  display:block;
  height: 2px;
  width: 100%;
  background: var(--text);
}

.menu-links{
  position:absolute;
  right:0;
  top: 48px;
  background: var(--surface-strong);
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: 0 12px 30px var(--shadow);
  display:none;
  min-width: 190px;
  overflow:hidden;
  z-index: 50;
}
.menu-links.open{ display:block; }
.menu-links a{
  display:block;
  padding: 0.8rem 1rem;
  font-size: 0.9rem;
}
.menu-links a:hover{ background: var(--hover-bg); }

/* ===================== TYPO ===================== */
.section__text__p1{
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--fs-meta);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text);
  margin-bottom: 0.5rem;
}

.title{
  font-size: clamp(1.65rem, 2.4vw + 0.6rem, 2.1rem);
  font-weight: 700;
  line-height: 1.12;
  letter-spacing: -0.02em;
}

.section__text__p2{
  font-size: var(--fs-lead);
  color: var(--text-muted);
  margin-top: 0.6rem;
  margin-bottom: 0.9rem;
}


.justify{ text-align: justify; }

/* ===================== HERO ===================== */
#profile{
  padding: 2.0rem 0 0.5rem;
}

.hero-grid{
  display:grid;
  grid-template-columns: minmax(280px, 340px) 1fr;  /* ✅ photo column hugs the photo's actual size instead of leaving dead space */
  gap: 2.5rem;                                       /* ✅ intentional breathing room instead of a giant empty gap */
  align-items: start;
}

/* Nudge the entire right hero column slightly left */
.hero-right{
  transform: translateX(-10px); /* try -10px, -15px, -25px */
}

/* Optional: avoid weird shifts on small screens */
@media (max-width: 900px){
  .hero-right{ transform: none; }
}

.hero-photo{
  border-radius: 18px;
  overflow:hidden;
  box-shadow: 0 16px 42px rgba(0,0,0,0.10);
  border: 1px solid rgba(0,0,0,0.10);
  max-width: 320px;
}

#socials-container{
  display:flex;
  justify-content: center;
  gap: 0.1rem;
  margin-top: 1.0rem;
}

.icon{
  width: 32px;
  height: 32px;
  cursor:pointer;
  object-fit: contain;
}

.btn-container{
  display:flex;
  justify-content: center;
  gap: 0.1rem;
  margin-top: 1.0rem;
  flex-wrap: wrap; /* prevents overflow on small screens */
}

.btn{
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: -0.01em;
  padding: 0.85rem 1.5rem;
  border-radius: 999px;
  cursor:pointer;
  border: 1px solid var(--border-strong);
  transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease, border-color 180ms ease;
  background: var(--surface-strong);
  color: var(--text);
  min-height: 46px; /* tap target */
}
.btn:hover{ transform: translateY(-2px); }

.btn-color-1{
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
  box-shadow: 0 10px 24px -8px var(--accent);
}
.btn-color-1:hover{
  background: var(--accent-strong);
  border-color: var(--accent-strong);
  box-shadow: 0 14px 30px -8px var(--accent);
}
.btn-color-2{ background: var(--surface-strong); }
.btn-color-2:hover{ background: var(--hover-bg); border-color: var(--text-soft); }

/* ===================== HERO TREE ===================== */
.logo-tree{
  width: min(720px, 100%);   /* ✅ larger footprint, gives each node room for its logo + date */
  margin: 0.5rem 0 0 auto;
}

.tree-row{
  display:flex;
  position:relative;
}

.tree-top{
  justify-content: space-between;   /* even spacing; middle node (UW) lands exactly at center */
}

.tree-bottom{
  justify-content: center;
  gap: 4%;
}

/* Horizontal connector line running behind the top-row nodes */
.tree-top::before{
  content:"";
  position:absolute;
  left: 9%; right: 9%;   /* 9% = half a node's width, so the line reaches each node's center */
  top: 50%;
  height: 2px;
  background: rgba(0,0,0,0.30);
  z-index: 0;
}

/* Branch zone between the two rows: stem down from UW, splitting to Keysight + Rogers */
.tree-branch{
  position: relative;
  height: 1.8rem;
}
.tree-branch::before{  /* vertical stem from UW's center down to the split point */
  content:"";
  position:absolute;
  left: 50%; top: 0; height: 55%;
  width: 2px;
  background: rgba(0,0,0,0.30);
  transform: translateX(-50%);
}
.tree-branch::after{   /* horizontal bridge at the split point */
  content:"";
  position:absolute;
  left: 39%; right: 39%; top: 55%;
  height: 2px;
  background: rgba(0,0,0,0.30);
}
.branch-left, .branch-right{  /* two verticals dropping into Keysight and Rogers */
  position:absolute;
  top: 55%; height: 45%;
  width: 2px;
  background: rgba(0,0,0,0.30);
}
.branch-left{ left: 39%; }
.branch-right{ left: 61%; }

.tree-node{
  position: relative;
  z-index: 1;             /* sits above the connector lines */
  width: 18%;
  min-height: 5.6rem;      /* ✅ tall enough for logo + two-line date, no overflow */
  background: var(--surface-strong);
  border: 1px solid var(--border);
  border-radius: 14px;
  box-shadow: 0 10px 22px var(--shadow);
  display:flex;
  flex-direction: column;
  align-items:center;
  justify-content:center;
  gap: 6px;
  padding: 10px 6px;
  transition: transform 160ms ease, box-shadow 160ms ease;
  text-align:center;
}
.tree-node:hover{
  transform: translateY(-2px);
  box-shadow: 0 14px 30px var(--shadow);
}

.tree-node img{
  height: 24px;
  width:auto;
  max-width: 85%;
  object-fit: contain;
}

.tree-node span{
  font-size: var(--fs-meta);
  color: var(--text-soft);
  line-height: 1.15;
}

/* ===================== ABOUT ===================== */
#about{ padding: 0.5rem 0 1.2rem; }

.about-layout{
  display:flex;
  gap: 2rem;
  align-items:flex-start;
  margin-top: 1.4rem;
}

.about-text{ flex: 1.2; }
.about-text p{ margin-bottom: 0.8rem; line-height: 1.55; font-size: var(--fs-body); }

.about-image{ flex: 0.8; display:flex; justify-content:flex-end; }
.about-pic{
  width: min(340px, 100%);
  border-radius: 16px;
  border: 1px solid var(--border);
  box-shadow: 0 10px 26px var(--shadow);
}

/* ===================== EDUCATION / ACADEMIC BACKGROUND ===================== */
.academic-heading{
  margin-top: 0.7rem;
  font-size: var(--fs-subhead);
  padding-bottom: 0.28rem;
  border-bottom: 1px solid var(--border);
}

.education-wrapper{
  margin-top: 0.8rem;
  width: 100%;
}

.edu-box{
  display:flex;
  gap: 0.9rem;
  padding: 0.55rem 0;
  align-items:flex-start;
}

.edu-left{
  width: 72px;
  display:flex;
  flex-direction: column;     /* stack logo + timeline */
  align-items: center;        /* center under logo */
  justify-content: flex-start;
  gap: 0.25rem;               /* spacing between logo and timeline */
  flex: 0 0 auto;
}

.edu-logo{
  width: 48px;
  height: 48px;
  object-fit: contain;
}

.edu-right{
  flex: 1;
  min-width: 0;
}

.edu-title{
  font-size: var(--fs-subhead);
  margin-bottom: 0.1rem;
  line-height: 1.3;
}

.edu-degree{
  font-size: var(--fs-body);
  color: var(--text-muted);
  margin-bottom: 0.03rem;
  line-height: 1.3;
}

.edu-detail{
  font-size: var(--fs-body);
  margin-bottom: 0.03rem;     /* tight spacing between Thesis/CGPA */
  line-height: 1.3;
}

.edu-duration{
  font-size: var(--fs-meta);
  margin-top: 0;              /* since it's now under logo */
  color: var(--text-soft);
  text-align: center;
  line-height: 1.3;
}

.edu-btn-row{
  display:flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-top: 0.5rem;
}

.edu-divider{
  border:none;
  border-top: 1px solid rgba(0,0,0,0.12);
}

/* Buttons inside education */
.mini-btn{
  display:inline-block;
  padding: 0.34rem 0.75rem;
  border-radius: 999px;
  border: 1px solid rgba(0,0,0,0.18);
  background:#fff;
  color:#111;               /* ✅ always readable: this pill stays white in both themes */
  font-weight: 600;
  font-size: var(--fs-meta);
  min-height: 30px;
}
.mini-btn:hover{
  background: rgba(0,0,0,0.05);
  color:#111;
}

/* ===================== EXPERIENCE: SOLAR SYSTEM ===================== */
#experience{ padding: 0.5rem 0 2rem; }

.solar-system{
  position: relative;
  width: min(600px, 92vw);
  height: min(600px, 92vw);
  margin: 2.5rem auto 1rem;
}

.sun{
  position:absolute;
  top:50%; left:50%;
  transform: translate(-50%,-50%);
  max-width: 78px;
  text-align:center;
  z-index: 3;
}
.sun-label{
  font-size: 0.85rem;
  font-weight: 700;
  line-height: 1.2;
  color: var(--text);
}

.orbit{
  position:absolute;
  top:50%; left:50%;
  border-radius:50%;
  border: 1px dashed var(--border-strong);
  transform: translate(-50%,-50%);
}

/* inner -> outer, around the "ML & Robotics" center: Bahria, Abyss, (UW+Rogers+Keysight), Cobionix, Apple */
.orbit-1{ width:26%;  height:26%;  animation: spin-cw  14s linear infinite; }
.orbit-2{ width:44%;  height:44%;  animation: spin-ccw 20s linear infinite; }
.orbit-3{ width:62%;  height:62%;  animation: spin-cw  28s linear infinite; }
.orbit-4{ width:82%;  height:82%;  animation: spin-ccw 36s linear infinite; }
.orbit-5{ width:100%; height:100%; animation: spin-cw  44s linear infinite; }

.orbit-1 .planet{ animation: spin-ccw 14s linear infinite; }
.orbit-2 .planet{ animation: spin-cw  20s linear infinite; }
.orbit-3 .planet{ animation: spin-ccw 28s linear infinite; }
.orbit-4 .planet{ animation: spin-cw  36s linear infinite; }
.orbit-5 .planet{ animation: spin-ccw 44s linear infinite; }

@keyframes spin-cw{
  from{ transform: translate(-50%,-50%) rotate(0deg); }
  to{   transform: translate(-50%,-50%) rotate(360deg); }
}
@keyframes spin-ccw{
  from{ transform: translate(-50%,-50%) rotate(0deg); }
  to{   transform: translate(-50%,-50%) rotate(-360deg); }
}

.planet{
  position:absolute;
  top:0; left:50%;
  width: clamp(36px, 8vw, 58px);
  height: clamp(36px, 8vw, 58px);
  display:flex;
  align-items:center;
  justify-content:center;
  background: var(--surface-strong);
  border: 1px solid var(--border);
  border-radius: 50%;
  box-shadow: 0 8px 20px var(--shadow);
  z-index: 2;
  transition: transform 160ms ease, box-shadow 160ms ease;
}
.planet:hover{
  box-shadow: 0 12px 26px var(--shadow);
}

.planet img{
  width: 62%;
  height: 62%;
  object-fit: contain;
}

/* three planets sharing orbit-3 (UW, Rogers, Keysight), spaced evenly around the ring */
.orbit-3 .planet-b{ top:75%; left:93%; }
.orbit-3 .planet-c{ top:75%; left:7%; }

/* pause the motion on hover so logos are easy to click */
.solar-system:hover .orbit,
.solar-system:hover .planet{
  animation-play-state: paused;
}

@media (prefers-reduced-motion: reduce){
  .orbit, .planet{ animation: none !important; }
}

/* ===================== RESEARCH ===================== */
#research{ padding: 0.5rem 0 1.2rem; }

.scholar-badge{
  display:flex;
  flex-direction: column;
  align-items:center;
  gap: 0.3rem;
  margin-top: 0.7rem;
  margin-bottom: 1.2rem;
}

.research-box{
  display:grid;
  grid-template-columns: 240px 1fr;
  gap: 1.3rem;
  align-items:center;
  padding: 0.9rem 1rem;
  border: 1px solid transparent;
  border-radius: 14px;
  transition: border-color 200ms ease, box-shadow 200ms ease, transform 200ms ease, background 200ms ease;
}
.research-box:hover{
  border-color: var(--border);
  background: var(--surface-strong);
  box-shadow: 0 14px 34px -22px var(--shadow-strong);
  transform: translateY(-2px);
}

.project-thumb-lg{
  width: 100%;
  aspect-ratio: 16 / 10;
  border-radius: 10px;
  object-fit: cover;
  border: 1px solid var(--border);
  box-shadow: 0 8px 20px var(--shadow);
}

.project-title{
  font-size: var(--fs-subhead);
  font-weight: 600;
  line-height: 1.3;
  margin-bottom: 0.3rem;
}

.project-desc{
  font-size: var(--fs-body);
  line-height: 1.5;
  margin-bottom: 0.6rem;
}

.project-btn-row{
  display:flex;
  gap: 0.7rem;
  flex-wrap: wrap;
}

.research-box.hidden{ display:none; }

/* ===================== CONTACT ===================== */
#contact{ padding: 0.5rem 0 2.0rem; }

.contact-info-upper-container{
  margin-top: 1.2rem;
  padding: 1rem 1rem;
  border: 1px solid var(--border);
  border-radius: 16px;
  display:flex;
  justify-content:center;
  gap: 2rem;
  flex-wrap: wrap;
}

.contact-info-container{
  display:flex;
  align-items:center;
  gap: 0.6rem;
}
.contact-info-container p,
.contact-info-container a{ font-size: var(--fs-body); }

.email-icon{ width: 34px; height: 34px; }

footer{
  padding: 1.5rem 0 2.2rem;
  text-align:center;
  color:#666;
  font-size: var(--fs-meta);
}

/* ===================== POLISH: STICKY NAV, ANCHORS, FOCUS ===================== */
/* Keep the navigation reachable while scrolling, with a full-width translucent bar
   behind the centered nav content. Preserves the existing monochrome look. */
#desktop-nav,
#hamburger-nav{
  position: sticky;
  top: 0;
  z-index: 100;
}
#desktop-nav::before,
#hamburger-nav::before{
  content:"";
  position:absolute;
  top:0; bottom:0; left:50%;
  width:100vw;
  transform:translateX(-50%);
  background: var(--surface);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  z-index:-1;
}

/* Anchor links land below the sticky bar instead of hidden beneath it */
section[id]{ scroll-margin-top: 84px; }

/* Visible keyboard focus for accessibility (only shows for keyboard users) */
a:focus-visible,
button:focus-visible,
.btn:focus-visible,
.mini-btn:focus-visible,
.filter-btn:focus-visible,
.theme-toggle:focus-visible{
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 8px;
}

/* Subtle lift on research thumbnails for a more polished feel */
.research-media{ overflow: hidden; border-radius: 16px; position: relative; }
.project-thumb-lg{ transition: transform 320ms ease; }
.research-box:hover .project-thumb-lg{ transform: scale(1.03); }

/* Clickable media: whole thumbnail links to the project's video/resource */
.media-link{ display: block; position: relative; cursor: pointer; }
.media-link:focus-visible{ outline: 2px solid var(--accent); outline-offset: 3px; }

/* Play badge on video thumbnails */
.research-media.has-video .media-link::before{
  content: "";
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 44px; height: 44px;
  z-index: 2;
  background:
    url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 100 100'><circle cx='50' cy='50' r='50' fill='black' fill-opacity='0.55'/><polygon points='40,30 40,70 72,50' fill='white'/></svg>")
    center / contain no-repeat;
  opacity: 0.9;
  transition: transform 220ms ease, opacity 220ms ease;
  pointer-events: none;
}
/* Gentle darken on hover so the play badge pops */
.research-media.has-video .media-link::after{
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.0);
  transition: background 220ms ease;
  z-index: 1;
  pointer-events: none;
}
.media-link:hover::before,
.media-link:focus-visible::before{ transform: translate(-50%, -50%) scale(1.08); opacity: 1; }
.research-media.has-video .media-link:hover::after,
.research-media.has-video .media-link:focus-visible::after{ background: rgba(0,0,0,0.18); }

@media (prefers-reduced-motion: reduce){
  .project-thumb-lg{ transition: none; }
  .research-box:hover .project-thumb-lg{ transform: none; }
  .media-link::before{ transition: none; }
}

/* ===================== TOP-CLASS DESIGN SYSTEM POLISH ===================== */

/* Brand mark in nav picks up the display font + an accent dot */
.logo{ font-family: var(--font-display); letter-spacing: -0.02em; }
#desktop-nav .logo::after{
  content:"";
  display:inline-block;
  width: 7px; height: 7px;
  margin-left: 6px;
  border-radius: 50%;
  background: var(--accent);
  vertical-align: middle;
}

/* Nav link hover → accent underline instead of gray */
.nav-links a{ position: relative; font-weight: 500; }
.nav-links a:hover{ color: var(--text); border-bottom: none; }
.nav-links a::after{
  content:"";
  position:absolute; left:0; right:0; bottom:-4px;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 200ms ease;
}
.nav-links a:hover::after{ transform: scaleX(1); }

/* Generous, consistent vertical rhythm between major sections */
#about, #research, #journey, #contact{ padding-top: 2.4rem; padding-bottom: 2.4rem; }

/* Hero focus/expertise chips */
.hero-focus{
  display:flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 0.9rem 0 0.2rem;
}
.focus-chip{
  font-family: var(--font-display);
  font-size: var(--fs-meta);
  font-weight: 600;
  letter-spacing: 0.01em;
  padding: 0.4rem 0.8rem;
  border-radius: 999px;
  color: var(--accent-strong);
  background: var(--accent-soft);
  border: 1px solid transparent;
  white-space: nowrap;
}
body.dark-mode .focus-chip{ color: var(--accent-strong); }

/* Research list: card rhythm instead of hard rules */
.research-wrapper{ display:flex; flex-direction: column; gap: 0.4rem; }
.research-wrapper > hr{ display:none; }

/* Mini buttons adopt the system (accent ghost that fills on hover) */
.mini-btn{
  font-family: var(--font-display);
  border-color: var(--border-strong) !important;
  background: var(--surface-strong) !important;
  color: var(--text) !important;
  transition: background 160ms ease, color 160ms ease, border-color 160ms ease, transform 160ms ease;
}
.mini-btn:hover{
  background: var(--accent) !important;
  color: #fff !important;
  border-color: var(--accent) !important;
  transform: translateY(-1px);
}

/* Keep text readable when the (monochrome) accent is near-white in dark mode */
body.dark-mode .btn-color-1,
body.dark-mode .filter-btn.active{ color: #07090f; }
body.dark-mode .mini-btn:hover{ color: #07090f !important; }
body.dark-mode .focus-chip{ color: var(--accent-strong); }

/* Scholar badge reads as a pill link */
.scholar-badge{
  flex-direction: row !important;
  width: fit-content;
  margin: 0.4rem auto 1.4rem !important;
  padding: 0.5rem 1rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface-strong);
  transition: border-color 160ms ease, box-shadow 160ms ease;
}
.scholar-badge:hover{ border-color: var(--accent); box-shadow: 0 10px 24px -14px var(--accent); }
.scholar-badge p,
.scholar-badge span{ font-weight: 600; font-size: var(--fs-meta); color: var(--text); }

/* Row of profile shortcut pills (GitHub, Google Scholar) */
.profile-badges{
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin: 0.4rem 0 1.4rem;
}
.profile-badges .scholar-badge{ margin: 0 !important; }

/* Contact card a touch more premium */
.contact-info-upper-container{
  background: var(--surface-strong);
  box-shadow: 0 16px 40px -28px var(--shadow-strong);
}

/* Social icons: rounded hit area with hover lift */
#socials-container .icon{
  padding: 8px;
  width: 42px; height: 42px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--surface-strong);
  transition: transform 160ms ease, border-color 160ms ease, box-shadow 160ms ease;
}
#socials-container .icon:hover{
  transform: translateY(-2px);
  border-color: var(--accent);
  box-shadow: 0 10px 22px -12px var(--accent);
}
#socials-container{ gap: 0.7rem; }

/* Divider uses token so it adapts to dark mode too */
.section-divider{ border-top-color: var(--border); }

/* About body copy emphasis */
.about-text strong{ color: var(--text); font-weight: 600; }


/* ===================== PRINT / SAVE-AS-PDF ===================== */
@media print {
  /* Always print on a clean light theme, regardless of dark mode */
  :root,
  :root[data-theme="dark"],
  body.dark-mode{
    --bg:#ffffff; --bg-tint:#ffffff; --surface:#ffffff; --surface-strong:#ffffff;
    --text:#000000; --text-muted:#222222; --text-soft:#444444;
    --border:rgba(0,0,0,0.28); --border-strong:rgba(0,0,0,0.35);
    --shadow:rgba(0,0,0,0.12); --shadow-strong:rgba(0,0,0,0.18);
    --accent:#000000; --accent-strong:#000000; --accent-soft:rgba(0,0,0,0.06);
    --ring:rgba(0,0,0,0.4);
  }
  body, body.dark-mode{
    background:#ffffff !important;
    color:#000000 !important;
    -webkit-print-color-adjust: exact;
    print-color-adjust: exact;
  }

  @page{ margin: 14mm; }

  /* Full width, no clipping */
  .container{ width:100% !important; }

  /* Hide interactive chrome that is useless in a PDF */
  #desktop-nav, #hamburger-nav, .theme-toggle, .menu-links{ display:none !important; }

  /* Flatten shadows and animations for crisp output */
  *{ box-shadow:none !important; text-shadow:none !important; }
  .orbit, .planet{ animation:none !important; }

  a{ color:#000 !important; }

  /* Keep logical blocks from splitting across pages */
  .research-box, .edu-box, .tree-node, .about-image,
  .solar-system, .contact-info-upper-container{
    break-inside: avoid;
    page-break-inside: avoid;
  }
  h1, h2, h3{ break-after: avoid; page-break-after: avoid; }
  #about, #research, #journey, #contact{ padding-top:1rem !important; padding-bottom:1rem !important; }

  /* Keep hero media a sensible size on paper */
  .hero-photo{ max-width:240px !important; }
  .about-pic{ width:min(240px,100%) !important; }

  /* Keep the research list compact (small thumbnail + text), not full-width */
  .research-box{
    grid-template-columns: 170px 1fr !important;
    gap: 1rem !important;
    align-items: start !important;
  }
  .research-media{ align-self: center; }

  /* Freeze the Journey orbits into a tidy static spread */
  .orbit-1{ transform: translate(-50%,-50%) rotate(38deg) !important; }
  .orbit-1 .planet{ transform: rotate(-38deg) !important; }
  .orbit-2{ transform: translate(-50%,-50%) rotate(-42deg) !important; }
  .orbit-2 .planet{ transform: rotate(42deg) !important; }
  .orbit-4{ transform: translate(-50%,-50%) rotate(95deg) !important; }
  .orbit-4 .planet{ transform: rotate(-95deg) !important; }
  .orbit-5{ transform: translate(-50%,-50%) rotate(-100deg) !important; }
  .orbit-5 .planet{ transform: rotate(100deg) !important; }
}