/* Single consolidated font import */
@import url('https://fonts.googleapis.com/css2?family=Geist:wght@100..900&family=Inter:wght@300;400;500;600;700;800;900&family=Source+Serif+4:opsz,wght@8..60,600;8..60,700&display=swap');

/* CSS Reset to eliminate white borders completely */
*, *::before, *::after { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background-color: var(--bg-dark);
  color: var(--text-main);
  scroll-behavior: smooth !important;
  overflow-x: clip;
  scrollbar-gutter: stable;
}

html {
  overflow-y: scroll;
}


html.intro-scroll-lock {
  overscroll-behavior: none;
}
body.intro-scroll-lock {
  position: fixed;
  inset: 0;
  width: 100%;
  overscroll-behavior: none;
}

/* Global Theme Variables */
:root {
  --cyan: #00f2fe;
  --cyan-dim: rgba(0, 242, 254, 0.1);
  --teal: #4facfe;
  --bg-dark: #0b1120;
  --surface: rgba(30, 41, 59, 0.4); 
  --surface-hover: rgba(45, 60, 85, 0.5);
  --border-glass: rgba(255, 255, 255, 0.08);
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
}

[data-theme="light"] {
  --bg-dark: #f0f4f8;
  --text-main: #0f172a;
  --text-muted: #334155;
  --surface: rgba(255, 255, 255, 0.7);
  --surface-hover: rgba(255, 255, 255, 0.95);
  --border-glass: rgba(0, 0, 0, 0.08);
  --cyan: #0891b2; 
  --teal: #0369a1;
  --cyan-dim: rgba(8, 145, 178, 0.1);
}

.dark-academic-portfolio {
  
  font-family: 'Inter', sans-serif;
  background-color: var(--bg-dark);
  color: var(--text-main);
  position: relative;
  padding: 0 4% 0;
}

a { text-decoration: none; color: inherit; }
.clearfix::after { content: ""; clear: both; display: table; }

/* Background Elements */
.orb-wrapper { position: absolute; top: 0; left: 0; width: 100%; height: 100%; overflow: hidden; z-index: 0; pointer-events: none; }
.ambient-orb { position: absolute; border-radius: 50%; filter: blur(100px); opacity: 0.25; animation: float-orb 10s infinite alternate ease-in-out; }
.orb-cyan { width: 400px; height: 400px; background: var(--cyan); top: -50px; left: -50px; }
.orb-teal { width: 350px; height: 350px; background: var(--teal); top: 500px; right: -50px; animation-delay: -5s; }
@keyframes float-orb { 0% { transform: translateY(0) scale(1); } 100% { transform: translateY(50px) scale(1.1); } }

/* ================= HEADER (Desktop Nav & Mobile Hamburger) ================= */
.topbar {
  position: absolute; top: 0; left: 0; width: 100%; height: 70px;
  background: rgba(11, 17, 32, 0.85); backdrop-filter: blur(15px); -webkit-backdrop-filter: blur(15px);
  border-bottom: 1px solid var(--border-glass); z-index: 9999;
  display: flex; align-items: center;
}
.topbar-inner { max-width: 1350px; margin: 0 auto; width: 100%; padding: 0 4%; display: flex; justify-content: space-between; align-items: center; gap: 20px; }
.brand { font-family: 'Source Serif 4', serif; font-size: 20px; font-weight: 700; color: var(--text-main); margin-right: auto; }

/* Theme Toggle Button */
.theme-toggle {
  background: transparent;
  border: 1px solid var(--border-glass);
  color: var(--text-main);
  cursor: pointer;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s;
}
.theme-toggle:hover {
  background: var(--surface-hover);
  color: var(--cyan);
}
.theme-toggle svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.theme-toggle .sun-icon { display: none; }
[data-theme="light"] .theme-toggle .moon-icon { display: none; }
[data-theme="light"] .theme-toggle .sun-icon { display: block; }
[data-theme="light"] .topbar { background: rgba(240, 244, 248, 0.85); }
[data-theme="light"] .top-nav.open { background: rgba(240, 244, 248, 0.98); }

.top-nav { display: flex; gap: 30px; }
.t-link { font-size: 14px; font-weight: 500; color: var(--text-muted); transition: color 0.3s; position: relative; padding-bottom: 5px; }
.t-link:hover, .t-link.active { color: var(--cyan); }
.t-link::after { content: ''; position: absolute; left: 0; bottom: 0; width: 0; height: 2px; background: var(--cyan); transition: width 0.3s; }
.t-link:hover::after, .t-link.active::after { width: 100%; }

/* Mobile nav toggle button */
.menu-toggle { display: none; background: transparent; border: none; color: var(--cyan); cursor: pointer; padding: 5px; }

/* Mobile Menu Dropdown (Matches script.js logic) */
@media (max-width: 1100px) {
  .topbar { position: fixed; }
  .top-nav { display: none; }
  .menu-toggle { display: block; }
  
  .top-nav.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 70px;
    right: 0;
    width: 100%;
    background: rgba(11, 17, 32, 0.98);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-glass);
    padding: 20px;
    text-align: center;
    gap: 15px;
  }
  .top-nav.open .t-link { font-size: 18px; }
  .top-nav.open .t-link::after { display: none; }
}

/* ================= LAYOUT ================= */
.portfolio-layout { 
  max-width: 1350px; margin: 0 auto; display: grid; 
  grid-template-columns: minmax(0, 1fr) 220px; gap: 40px; 
  align-items: start; position: relative; z-index: 1; 
  padding-top: 100px;
}
.portfolio-main { min-width: 0; }
.content-section { margin-bottom: 90px; scroll-margin-top: 100px; }

/* Universal Glass Card */
.glass-card { background: var(--surface); border: 1px solid var(--border-glass); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px); border-radius: 16px; padding: 35px; box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2); }
.hover-lift { transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease; }
.hover-lift:hover { transform: translateY(-4px); border-color: rgba(0, 242, 254, 0.3); background: var(--surface-hover); }
.section-title-wrap { display: flex; align-items: center; gap: 12px; margin-bottom: 25px; }
.title-icon { width: 28px; height: 28px; color: var(--cyan); fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.section-title-wrap h2 { font-family: 'Source Serif 4', serif; font-size: 36px; margin: 0; color: var(--text-main); }
.tech-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 15px; }
.tech-tags span { font-size: 11px; font-weight: 600; padding: 6px 12px; border-radius: 4px; background: rgba(0, 242, 254, 0.05); color: var(--cyan); border: 1px solid rgba(0, 242, 254, 0.2); }

/* ================= 1. HERO SECTION (FLOAT IMAGE) ================= */
.video-bg-container {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 500px;
  overflow: hidden;
  z-index: 0;
  opacity: 0.15;
  mask-image: linear-gradient(to bottom, black 50%, transparent 100%);
  -webkit-mask-image: linear-gradient(to bottom, black 50%, transparent 100%);
}
[data-theme="light"] .video-bg-container { 
  opacity: 0.35; 
  filter: blur(3px); 
}
.video-bg-container video, .video-bg-container img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-wrapped-layout {
  display: block;
  position: relative;
  padding-top: 25px;
  z-index: 1;
}

.hero-image-floated {
  float: right;
  width: 250px;
  height: 250px;
  margin: 0 0 20px 40px;
  shape-outside: circle(50%);
  border-radius: 50%;
}

.portrait-box { 
  width: 100%; height: 100%; 
  border-radius: 50%; overflow: hidden; 
  border: 2px solid rgba(0, 242, 254, 0.3); 
  box-shadow: 0 0 40px rgba(0,242,254,0.15); 
}
.portrait-box img { width: 100%; height: 100%; object-fit: cover; filter: contrast(1.05); }

.hero-name { font-family: 'Source Serif 4', serif; font-size: 3.5rem; line-height: 1.1; margin: 0 0 25px; color: var(--text-main); }
.text-cyan { color: var(--cyan); }

.hero-bio-content p { font-size: 15.5px; line-height: 1.8; color: var(--text-muted); margin-bottom: 15px; }
.hero-bio-content strong { color: var(--text-main); font-weight: 600; }
.hero-bio-content u { text-decoration-color: var(--cyan); text-underline-offset: 4px; }
.hero-list { padding-left: 20px; margin-bottom: 20px; font-size: 15.5px; color: var(--text-muted); line-height: 1.8; }
.hero-list li { margin-bottom: 10px; }
.hero-list li strong { color: var(--cyan); }
.highlight-text strong { color: var(--cyan); font-size: 16px; }

/* Social Badges */
.social-badges { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 25px; clear: both; }
.s-badge { display: inline-flex; align-items: center; gap: 8px; font-size: 13px; font-weight: 600; color: var(--cyan) !important; text-decoration: none; padding: 10px 18px; border-radius: 6px; background: rgba(0, 242, 254, 0.05); border: 1px solid rgba(0, 242, 254, 0.3); transition: all 0.2s ease; }
.s-badge:hover { background: var(--cyan); color: var(--bg-dark) !important; transform: translateY(-3px); box-shadow: 0 4px 15px rgba(0, 242, 254, 0.3); }

/* ================= 2. RESEARCH GRID ================= */
.section-intro { font-size: 15.5px; color: var(--text-muted); line-height: 1.7; margin-bottom: 30px; max-width: 800px; }
.section-intro strong { color: var(--text-main); }
.research-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.research-grid .glass-card { display: flex; flex-direction: column; }
.r-top { display: flex; align-items: center; gap: 15px; margin-bottom: 20px; }
.r-num { font-family: 'Source Serif 4', serif; font-size: 24px; font-weight: 700; color: var(--cyan); opacity: 0.5; }
.r-line { height: 1px; flex: 1; background: linear-gradient(to right, var(--cyan), transparent); opacity: 0.3; }
.research-grid h3 { font-family: 'Source Serif 4', serif; font-size: 20px; margin: 0 0 12px; line-height: 1.3; color: var(--text-main); }
.research-grid p { font-size: 14.5px; color: var(--text-muted); margin: 0 0 20px; line-height: 1.6; }
.mt-auto { margin-top: auto; }

/* ================= 3. NEWS ================= */
.news-container { padding: 25px 35px; }

/* Scrollable News List */
.news-list { 
  list-style: none; 
  padding: 0; 
  margin: 0; 
  max-height: 380px; 
  overflow-y: auto;  
  padding-right: 15px;
}

/* Custom Scrollbar specifically for the News section */
.news-list::-webkit-scrollbar {
  width: 6px;
}
.news-list::-webkit-scrollbar-track {
  background: rgba(255, 255, 255, 0.05);
  border-radius: 4px;
}
.news-list::-webkit-scrollbar-thumb {
  background: var(--cyan);
  border-radius: 4px;
}
.news-list::-webkit-scrollbar-thumb:hover {
  background: #fff;
}

/* Existing list items logic remains the same */
.news-list li { display: flex; gap: 20px; padding: 15px 0; border-bottom: 1px solid var(--border-glass); }
.news-list li:last-child { border-bottom: none; padding-bottom: 0; }
.news-date { flex: 0 0 80px; font-size: 13px; font-weight: 700; color: var(--cyan); }
.news-list p { margin: 0; font-size: 14.5px; color: var(--text-muted); line-height: 1.6; }
.news-list em { color: var(--text-main); font-style: italic; }

/* ================= 4. PUBLICATIONS WIDE FORMAT ================= */
.pub-list-wide { display: flex; flex-direction: column; gap: 40px; }
.pub-row { display: flex; gap: 35px; padding-bottom: 40px; border-bottom: 1px solid var(--border-glass); transition: transform 0.2s; }
.pub-row:last-child { border-bottom: none; padding-bottom: 0; }


.pub-figure { 
  flex: 0 0 420px;
  align-self: center;
  border-radius: 8px; 
  overflow: hidden; 
  border: 1px solid var(--border-glass); 
  background: rgba(0,0,0,0.2); 
}

.pub-figure img { 
  width: 100%; 
  height: auto; 
  display: block; 
  object-fit: contain;
}
.pro-placeholder { width: 100%; height: 200px; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 12px; color: rgba(255, 255, 255, 0.3); background: rgba(255, 255, 255, 0.02); }
.pro-placeholder svg { color: rgba(0, 242, 254, 0.4); }
.pro-placeholder span { font-size: 12px; letter-spacing: 0.1em; text-transform: uppercase; font-weight: 600; }

.pub-details { flex: 1; }
.pub-meta { font-size: 11px; font-weight: 700; color: var(--cyan); letter-spacing: 0.1em; display: block; margin-bottom: 10px; }
.pub-title { font-family: 'Source Serif 4', serif; font-size: 22px; line-height: 1.3; margin: 0 0 10px; }
.pub-title a { color: var(--text-main); transition: color 0.2s; }
.pub-title a:hover { color: var(--cyan); }
.pub-authors { font-size: 14px; color: var(--text-muted); margin: 0 0 5px; }
.pub-authors strong { color: var(--text-main); }
.pub-venue { font-size: 13.5px; color: var(--teal); margin: 0 0 15px; }
.pub-abstract { font-size: 14px; color: var(--text-muted); margin: 0 0 15px; line-height: 1.6; }
.pub-contrib { font-size: 13.5px; color: var(--text-muted); background: rgba(0,242,254,0.05); padding: 12px 15px; border-left: 2px solid var(--cyan); border-radius: 4px; margin-bottom: 15px; line-height: 1.5; }
.pub-contrib strong { color: var(--cyan); font-size: 12px; text-transform: uppercase; letter-spacing: 0.05em; display: block; margin-bottom: 4px; }
.pub-link { display: inline-block; font-size: 13px; font-weight: 600; color: var(--cyan); background: rgba(0, 242, 254, 0.05); border: 1px solid var(--cyan); padding: 8px 16px; border-radius: 4px; transition: all 0.2s; }
.pub-link:hover { background: var(--cyan); color: var(--bg-dark); transform: translateY(-2px); }
[data-theme="light"] .pub-link { background: var(--cyan); color: #fff; border-color: var(--cyan); }
[data-theme="light"] .pub-link:hover { background: var(--text-main); color: var(--bg-dark); }

/* ================= 5 & 6. EXPERIENCE & EDUCATION ================= */
.timeline-wrap, .edu-wrap { padding: 35px 35px 35px 45px; }
.timeline-item, .edu-item { position: relative; padding-bottom: 35px; border-left: 1px solid rgba(255,255,255,0.15); padding-left: 25px; }
[data-theme="light"] .timeline-item, [data-theme="light"] .edu-item { border-left-color: rgba(0,0,0,0.15); }
.timeline-item:last-child, .edu-item:last-child, .border-none { border-left-color: transparent !important; padding-bottom: 0; }
.timeline-dot { position: absolute; left: -6px; top: 5px; width: 11px; height: 11px; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 10px var(--cyan); }
.tl-head, .edu-head { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 5px; }
.tl-head h3, .edu-head h3 { font-family: 'Source Serif 4', serif; font-size: 19px; margin: 0; color: var(--text-main); }
.tl-date, .edu-year { font-size: 13px; color: var(--text-muted); white-space: nowrap; }
.tl-org, .edu-org { font-size: 15px; font-weight: 600; color: var(--teal); margin: 0 0 10px; }

/* Icon formatting and hover animation */
.tl-cert { margin-left: 10px; color: var(--cyan); display: inline-flex; align-items: center; justify-content: center; transition: transform 0.2s ease; }
.tl-cert:hover { transform: translateY(-2px) translateX(2px); color: var(--text-main); }
.tl-desc, .edu-desc { font-size: 14.5px; color: var(--text-muted); margin: 0 0 10px; line-height: 1.6; }

.edu-left { flex: 1; }
.edu-right { text-align: right; display: flex; flex-direction: column; gap: 5px; }
.edu-score { font-size: 13px; font-weight: 600; color: var(--cyan); }
.edu-thesis { font-size: 14px; color: var(--text-muted); background: var(--cyan-dim); padding: 12px 15px; border-radius: 6px; border-left: 2px solid var(--teal); line-height: 1.5; margin-top: 10px;}
/* Supervisor and Thesis styling inside Education */
.supervisors-info { 
  margin-bottom: 8px; 
  display: flex; 
  flex-wrap: wrap; 
  align-items: center; 
  gap: 10px; 
  font-size: 13.5px;
}
.sup-divider { color: rgba(255, 255, 255, 0.2); }
[data-theme="light"] .sup-divider { color: rgba(0, 0, 0, 0.3); font-weight: bold; }
.supervisor-link { 
  color: var(--cyan); 
  display: inline-flex; 
  align-items: center; 
  gap: 4px; 
  transition: all 0.2s ease; 
  font-weight: 500; 
}
.supervisor-link svg { transition: transform 0.2s ease; }
.supervisor-link:hover { color: var(--text-main); }
.supervisor-link:hover svg { transform: translateY(-2px) translateX(2px); }
.thesis-title { line-height: 1.6; }

/* ================= 7. SKILLS ================= */
.skills-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.skill-box { padding: 25px; }
.skill-head { display: flex; align-items: center; gap: 10px; font-family: 'Inter', sans-serif; font-size: 16px; margin: 0 0 15px; color: var(--text-main); }
.skill-head svg { color: var(--cyan); }
.vibrant-tags span { background: rgba(0, 242, 254, 0.1); border-color: rgba(0, 242, 254, 0.3); transition: all 0.2s ease; cursor: default; }
.vibrant-tags span:hover { background: var(--cyan); color: var(--bg-dark); transform: translateY(-2px); text-shadow: none; box-shadow: 0 4px 10px rgba(0,242,254,0.3); }

/* ================= 8. TRAINING & CERTS (Grid Layout) ================= */
.cert-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.mini-card { padding: 25px; position: relative; display: flex; flex-direction: column; justify-content: center; }
.card-year { position: absolute; top: 20px; right: 20px; background: rgba(0, 242, 254, 0.1); color: var(--cyan); font-size: 11px; font-weight: 700; padding: 4px 10px; border-radius: 12px; border: 1px solid rgba(0, 242, 254, 0.2); }
.icon-badge { padding: 4px 8px; }
.mini-card h4 { font-family: 'Source Serif 4', serif; font-size: 16px; margin: 0 0 8px; color: var(--text-main); line-height: 1.4; padding-right: 40px; }
.mini-card p { font-size: 13.5px; color: var(--teal); margin: 0; font-weight: 500; }

/* ================= 9. LEADERSHIP (Badge Layout) ================= */
.leadership-wrap { padding: 30px; display: flex; flex-direction: column; gap: 20px; }
.leadership-item { display: flex; gap: 20px; align-items: flex-start; padding: 20px; background: var(--cyan-dim); border-radius: 12px; border: 1px solid rgba(0, 242, 254, 0.2); transition: all 0.3s ease; }
.leadership-item:hover { border-color: rgba(255, 255, 255, 0.05); background: rgba(0, 0, 0, 0.15); transform: translateX(5px); }
[data-theme="light"] .leadership-item:hover { background: rgba(0, 0, 0, 0.05); border-color: rgba(0, 0, 0, 0.1); }
.lead-icon { background: rgba(0, 242, 254, 0.1); color: var(--cyan); width: 42px; height: 42px; border-radius: 10px; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.lead-content h4 { font-size: 15px; color: var(--text-main); margin: 0 0 8px; line-height: 1.4; }
.lead-content h4 span { color: var(--teal); font-weight: 500; font-size: 13.5px; display: inline-block; }
.lead-content p { font-size: 14px; color: var(--text-muted); margin: 0; line-height: 1.6; }
.lead-org { 
  color: var(--teal); 
  font-weight: 500; 
  font-size: 13.5px; 
  display: block; 
  margin: 4px 0 10px 0; 
}

/* ================= 10. HONORS & AWARDS (Elegant List) ================= */
.elegant-awards { padding: 20px 30px; }
.award-item { display: flex; gap: 20px; align-items: center; padding: 20px 0; border-bottom: 1px solid var(--border-glass); }
.award-item:last-child { border-bottom: none; }
.award-icon { color: var(--cyan); display: flex; align-items: center; }
.award-info { flex: 1; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 10px; }
.award-info h4 { font-size: 15px; color: var(--text-main); margin: 0; font-weight: 500; }
.award-year { font-size: 13px; font-weight: 700; color: var(--cyan); background: rgba(0, 242, 254, 0.05); padding: 4px 12px; border-radius: 4px; border: 1px solid rgba(0, 242, 254, 0.3); }
[data-theme="light"] .award-year { background: var(--cyan); color: #fff; border-color: var(--cyan); box-shadow: 0 0 10px rgba(0,242,254,0.2); }

/* MOBILE RESPONSIVE FIXES FOR NEW LAYOUTS */
@media (max-width: 768px) {
  .cert-grid { grid-template-columns: 1fr; }
  .leadership-item { flex-direction: column; gap: 15px; }
  .award-info { flex-direction: column; align-items: flex-start; }
}

/* ================= DESKTOP STICKY SIDE NAVIGATION (Exact Match) ================= */
.sticky-nav-wrapper { 
  position: -webkit-sticky; 
  position: sticky; 
  top: 100px; 
  align-self: start; 
  height: max-content; 
  display: flex; 
  flex-direction: column; 
  gap: 20px; 
  transform: translateX(80px);
}
.nav-inner { background: var(--surface); border: 1px solid var(--border-glass); border-radius: 12px; padding: 24px 20px; }
.nav-title { color: var(--cyan); font-size: 12px; font-weight: 800; letter-spacing: 1.5px; margin-bottom: 20px; padding-left: 10px; }
.side-nav-menu { border-left: 1px solid var(--border-glass); margin-left: 10px; display: flex; flex-direction: column; position: relative; }
.nav-link { padding: 12px 0 12px 15px; font-size: 14px; color: var(--text-muted); position: relative; font-weight: 500; transition: all 0.3s ease; }
.nav-link:hover { color: var(--text-main); }

.nav-link.active { color: var(--cyan); font-weight: 700; }

.nav-indicator {
  position: absolute;
  left: -2px;
  width: 3px;
  height: 20px; /* adjusted dynamically via JS */
  background: var(--cyan);
  box-shadow: 0 0 10px var(--cyan), 0 0 20px var(--cyan);
  border-radius: 2px;
  transition: transform 0.3s cubic-bezier(0.25, 1, 0.5, 1), height 0.3s;
  pointer-events: none;
  top: 0;
}

/* ================= FOOTER ================= */
footer { display: flex; justify-content: space-between; max-width: 1350px; margin: 0 auto; padding: 24px 4%; border-top: 1px solid var(--border-glass); font-size: 11px; color: var(--text-muted); }

/* ================= RESPONSIVE ================= */
@media (max-width: 1100px) {
  .portfolio-layout { grid-template-columns: 1fr; }
  .sticky-nav-wrapper { display: none; }
  
  /* Disable float for mobile/tablet */
  .hero-image-floated { float: none; display: block; margin: 0 auto 30px; shape-outside: none; }
  .hero-name { font-size: 3rem; text-align: center; }
}
@media (max-width: 768px) {
  .research-grid, .skills-grid { grid-template-columns: 1fr; }
  .pub-row { flex-direction: column; gap: 20px; }
  .pub-figure { 
    flex: auto; 
    max-height: none; 
    width: 100%;     
  }
  .tl-head, .edu-head { flex-direction: column; gap: 5px; }
  .edu-right { text-align: left; flex-direction: row; gap: 10px; }
  .clean-list li { flex-direction: column; gap: 5px; }
  .list-year { flex: auto; }
  .glass-card { padding: 25px; }
  .timeline-wrap, .edu-wrap { padding: 25px 25px 25px 35px; }
  .social-badges { justify-content: center; }
}

/* ================= GALLERY / MOMENTS SLIDER (SLIDING & FADED EDGES) ================= */
.gallery-container {
  position: relative;
  margin-bottom: 70px; 
}

.gallery-slider {
  position: relative;
  width: 100%;
  height: 750px; 
  cursor: pointer; 
  background: transparent; 
  overflow: hidden; 
}

.slide {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  opacity: 0;
  transform: translateX(100%); 
  transition: transform 0.8s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.8s ease;
  display: flex;
  align-items: center; 
  justify-content: center; 
}


.slide.active {
  transform: translateX(0);
  opacity: 1;
  z-index: 2;
}


.slide.sliding-out {
  transform: translateX(-100%);
  opacity: 0;
  z-index: 1;
}

/* --- REVERSE ANIMATION STATE --- */
.gallery-slider.reverse-anim .slide {
  transform: translateX(-100%); 
}
.gallery-slider.reverse-anim .slide.active {
  transform: translateX(0); 
}
.gallery-slider.reverse-anim .slide.sliding-out {
  transform: translateX(100%); 
}

.slide img {
  width: 100%;
  height: 100%;
  object-fit: contain; 
  border-radius: 0; 
  box-shadow: none;
  
  -webkit-mask-image: radial-gradient(ellipse at center, rgba(0,0,0,1) 70%, rgba(0,0,0,0) 100%);
  mask-image: radial-gradient(ellipse at center, rgba(0,0,0,1) 70%, rgba(0,0,0,0) 100%);
}

/* Floating pill caption overlaid ON the image */
.slide-caption {
  position: absolute;
  bottom: 30px; 
  left: 50%;
  transform: translateX(-50%);
  padding: 12px 28px;
  background: rgba(30, 41, 59, 0.85); 
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 30px;
  color: #f8fafc; 
  font-size: 15px;
  font-weight: 500;
  text-align: center;
  width: max-content;
  max-width: 90%;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: 0 6px 25px rgba(0, 0, 0, 0.5);
  

  z-index: 5; 
  opacity: 1;
  transition: opacity 0.4s ease; 
  pointer-events: none; 
}


.slide-caption.fade-out {
  opacity: 0;
}

[data-theme="light"] .slide-caption {
  background: rgba(255, 255, 255, 0.95);
  color: #0f172a;
  border-color: rgba(0, 0, 0, 0.1);
}

.slider-dots {
  position: absolute;
  bottom: -40px; 
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 12px;
  z-index: 3;
}

.dot {
  width: 10px; height: 10px;
  border-radius: 50%;
  background: rgba(148, 163, 184, 0.4); 
  cursor: pointer;
  transition: all 0.3s ease;
}

.dot.active {
  background: var(--cyan);
  box-shadow: 0 0 12px var(--cyan);
  transform: scale(1.3);
}

@media (max-width: 768px) {
  .gallery-slider { height: 400px; }
  .slide-caption { font-size: 13.5px; padding: 10px 18px; bottom: 15px; }
  .slide img {
    -webkit-mask-image: radial-gradient(ellipse at center, rgba(0,0,0,1) 85%, rgba(0,0,0,0) 100%);
    mask-image: radial-gradient(ellipse at center, rgba(0,0,0,1) 85%, rgba(0,0,0,0) 100%);
  }
}

/* ================= CINEMATIC INTRO SPLASH ================= */

.intro-splash {
  position: fixed; top: 0; left: 0; width: 100vw; height: 100vh; height: 100dvh;
  z-index: 100000; display: flex; align-items: center; justify-content: center;
  overflow: hidden; background: transparent;
  transition: transform 1s cubic-bezier(0.77, 0, 0.175, 1);
}
.intro-splash.dismissed { transform: translateY(-100%); pointer-events: none; }

/* Doors & Line */
.door { position: absolute; top: 0; width: 50vw; height: 100%; background-color: #0b1120; z-index: 100; transition: transform 1.2s cubic-bezier(0.77, 0, 0.175, 1); }
.door-left { left: 0; }
.door-right { right: 0; }
.center-line { position: absolute; top: 50%; left: 50%; width: 4px; height: 0; background-color: var(--cyan); z-index: 101; transform: translate(-50%, -50%); animation: drawLineCenter 0.7s cubic-bezier(0.77, 0, 0.175, 1) forwards; }
@keyframes drawLineCenter { 0% { height: 0; } 100% { height: 100vh; } }
.intro-splash.open .door-left { transform: translateX(-100%); }
.intro-splash.open .door-right { transform: translateX(100%); }
.intro-splash.open .center-line { opacity: 0; transition: opacity 0.3s; }

/* Landing Content Background */
.intro-landing-content { position: absolute; inset: 0; background-color: var(--bg-dark); z-index: 50; display: flex; align-items: center; justify-content: center; overflow: hidden; }

/* Theme Toggle */
.intro-theme-toggle { position: absolute; top: 24px; right: 24px; z-index: 200; border-radius: 50%; }

/* --- Fixed Vertical Text Container --- */
.vertical-texts-container { position: absolute; inset: 0; pointer-events: none; overflow: hidden; z-index: 1; }
.vertical-text {
  position: absolute; top: 50%;
  font-family: 'Geist', sans-serif !important;
  font-size: clamp(2rem, 5vh, 4rem);
  font-weight: 900; color: var(--text-main); opacity: 0.04;
  white-space: nowrap; text-transform: uppercase;
  writing-mode: vertical-rl; letter-spacing: 0.05em;
}

.left-text { left: clamp(72px, 7vw, 110px); transform: translateY(-50%) rotate(180deg); }
.right-text { right: clamp(72px, 7vw, 110px); transform: translateY(-50%); }

/* Container & Header */
.intro-container { width: 100%; max-width: 1400px; padding: 0 4%; z-index: 10; display: flex; flex-direction: column; align-items: center; }
.intro-header { text-align: center; margin-bottom: 3vh; }

.hello-wrapper { position: relative; display: inline-block; margin-bottom: 20px; }
.hello-dashes { position: absolute; top: -16px; right: -12px; z-index: 3; }
.hello-badge { position: relative; background: #111; color: #fff; font-family: 'Geist', sans-serif; font-weight: 600; padding: 8px 24px; border-radius: 30px; z-index: 2; font-size: 14px; letter-spacing: 0.05em; }

/* Font */
.intro-main-title { font-family: 'Geist', sans-serif !important; font-size: clamp(2.5rem, 6vw, 5.5rem); font-weight: 900; line-height: 1.35; letter-spacing: -0.02em; margin: 0; color: var(--text-main); }

/* Middle Grid */
.intro-middle-grid { display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 30px; width: 100%; }

/* Quote */
.intro-quote-box { max-width: 320px; padding-left: 10%; }
.quote-icon { font-family: 'Geist', sans-serif !important; font-size: 3.5rem; color: var(--cyan); line-height: 0; margin-top: 20px; margin-bottom: 10px; font-weight: 900; }
.quote-text { font-family: 'Inter', sans-serif; font-size: 19px; line-height: 1.6; color: var(--text-muted); font-weight: 400; }

/* ================= CINEMATIC LANDING IMAGE + ENERGY SHAPE ================= */

.intro-image-wrapper {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  width: clamp(250px, 40vh, 400px);
  height: clamp(250px, 40vh, 400px);
}

/* ================= NATURAL PORTRAIT ================= */

.intro-portrait {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 0;
  z-index: 3;
  filter: drop-shadow(0 18px 35px rgba(0, 0, 0, 0.32));
  border: none;

  -webkit-mask-image: radial-gradient(
    ellipse 68% 80% at 50% 40%,
    rgba(0, 0, 0, 1) 0%,
    rgba(0, 0, 0, 1) 55%,
    rgba(0, 0, 0, 0.9) 66%,
    rgba(0, 0, 0, 0.65) 76%,
    rgba(0, 0, 0, 0.35) 86%,
    rgba(0, 0, 0, 0.1) 95%,
    rgba(0, 0, 0, 0) 100%
  );

  mask-image: radial-gradient(
    ellipse 68% 80% at 50% 40%,
    rgba(0, 0, 0, 1) 0%,
    rgba(0, 0, 0, 1) 55%,
    rgba(0, 0, 0, 0.9) 66%,
    rgba(0, 0, 0, 0.65) 76%,
    rgba(0, 0, 0, 0.35) 86%,
    rgba(0, 0, 0, 0.1) 95%,
    rgba(0, 0, 0, 0) 100%
  );
}

/* ================= BLUE ENERGY / FIRE SHAPE ================= */

.cyan-bg-shape {
  position: absolute;
  width: 110%;
  height: 110%;

  background: linear-gradient(
    135deg,
    var(--cyan),
    var(--teal)
  );

  z-index: 1;
  opacity: 0.6;
  filter: blur(15px);
  animation:
    morphBlob 8s ease-in-out infinite,
    rotateBlob 15s linear infinite;

  transform-origin: center center;

  will-change: transform, border-radius;
}


/* ================= ORGANIC ENERGY MORPH ================= */

@keyframes morphBlob {

  0%,
  100% {
    border-radius:
      40% 60% 70% 30% /
      40% 50% 60% 50%;
  }

  50% {
    border-radius:
      60% 40% 30% 70% /
      60% 30% 70% 40%;
  }
}


/* ================= CONTINUOUS ENERGY ROTATION ================= */

@keyframes rotateBlob {

  0% {
    transform: rotate(0deg);
  }

  100% {
    transform: rotate(360deg);
  }
}

/* Action Button */
.intro-actions { display: flex; justify-content: flex-end; padding-right: 10%; }
.intro-action-btn { background: var(--cyan); color: var(--bg-dark); border: none; padding: 0 28px; height: 50px; border-radius: 30px; cursor: pointer; display: inline-flex; align-items: center; gap: 10px; transition: transform 0.3s ease, box-shadow 0.3s ease; font-family: 'Geist', sans-serif !important; font-weight: 700; font-size: 15px; }
.intro-action-btn:hover { transform: translateY(-4px); box-shadow: 0 10px 25px rgba(0, 242, 254, 0.4); }

/* "Closing credits" hover */
.btn-text-window {
  display: inline-block;
  overflow: hidden;
  height: 1.4em;
  line-height: 1.4em;
  vertical-align: middle;
}
.btn-text-track {
  display: flex;
  flex-direction: column;
  transition: transform 0.45s cubic-bezier(0.65, 0, 0.35, 1);
}
.btn-text-track .btn-text {
  height: 1.4em;
  line-height: 1.4em;
  white-space: nowrap;
}
.intro-action-btn:hover .btn-text-track {
  transform: translateY(-1.4em);
}

/* --- Flawless Mobile Responsiveness --- */
@media (max-width: 1024px) {
  .intro-middle-grid { grid-template-columns: 1fr; text-align: center; justify-items: center; gap: 40px; margin-top: 2vh; }
  .intro-actions { justify-content: center; padding-right: 0; }
  .intro-quote-box { padding-left: 0; display: flex; flex-direction: column; align-items: center; }
}

@media (max-width: 768px), (max-height: 800px) {
  .vertical-texts-container { display: none; } 
  .intro-main-title { font-size: clamp(2rem, 8vw, 2.8rem); }
  .intro-header { margin-bottom: 10px; }
  .intro-middle-grid { gap: 25px; } 
  .intro-quote-box { margin-bottom: 10px; } 
  .quote-icon { font-size: 2.5rem; margin-bottom: 5px; }
  .quote-text { line-height: 1.4; br { display: none; } }
  
  .intro-image-wrapper { width: min(25vh, 220px); height: min(25vh, 220px); }
}
/* ================= TRAINING: CERTIFICATE CARDS ================= */

#training .credential-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}

#training .credential-card {
  position: relative;
  display: flex;
  flex-direction: column;
  min-width: 0;
  padding: 24px 26px 18px;
  border-radius: 18px;
  background:
    linear-gradient(135deg, var(--cyan-dim), transparent 55%),
    var(--surface);
  transition:
    transform .25s ease,
    border-color .25s ease,
    box-shadow .25s ease;
}

/* Slim accent along the left edge */
#training .credential-card::before {
  content: "";
  position: absolute;
  top: 25px;
  bottom: 25px;
  left: -1px;
  width: 3px;
  border-radius: 3px;
  background: linear-gradient(to bottom, var(--cyan), var(--teal));
}

#training .credential-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 20px;
}

#training .credential-year {
  display: inline-block;
  padding: 6px 11px;
  border: 1px solid var(--border-glass);
  border-radius: 7px;
  background: var(--cyan-dim);
  color: var(--text-main);
  font-size: 12px;
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: .04em;
  font-variant-numeric: tabular-nums;
}

/* Clickable arrow in the top-right corner */
#training .credential-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 46px;
  width: 46px;
  height: 46px;
  border: 1px solid var(--border-glass);
  border-radius: 50%;
  color: var(--text-main);
  background: var(--cyan-dim);
  text-decoration: none;
  transition:
    background .2s ease,
    color .2s ease,
    border-color .2s ease;
}

#training .credential-link svg {
  width: 20px;
  height: 20px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.7;
  stroke-linecap: round;
  stroke-linejoin: round;
  transition: transform .2s ease;
}

#training .credential-link:hover,
#training .credential-link:focus-visible {
  color: var(--bg-dark);
  background: var(--text-main);
  border-color: var(--text-main);
}

#training .credential-link:hover svg {
  transform: translate(2px, -2px);
}

#training .credential-link:focus-visible {
  outline: 3px solid var(--teal);
  outline-offset: 4px;
}

#training .credential-provider {
  margin: 0 0 8px;
  color: var(--teal);
  font-size: 12px;
  font-weight: 700;
  line-height: 1.5;
  letter-spacing: .08em;
  text-transform: uppercase;
}

#training .credential-title {
  margin: 0 0 26px;
  color: var(--text-main);
  font-family: 'Source Serif 4', Georgia, serif;
  font-size: clamp(19px, 2vw, 23px);
  font-weight: 600;
  line-height: 1.4;
  overflow-wrap: anywhere;
}

#training .credential-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: auto;
  padding-top: 14px;
  border-top: 1px dashed var(--border-glass);
  color: var(--text-muted);
  font-size: 12px;
  line-height: 1.5;
}

#training .credential-index {
  font-size: 11px;
  font-variant-numeric: tabular-nums;
  letter-spacing: .12em;
}

#training .credential-card:focus-within {
  border-color: var(--teal);
}

@media (hover: hover) and (pointer: fine) {
  #training .credential-card:hover {
    transform: translateY(-4px);
    border-color: var(--teal);
    box-shadow: 0 16px 32px rgba(0, 0, 0, .16);
  }
}

/* Mobile */
@media (max-width: 768px) {
  #training .credential-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 16px;
  }

  #training .credential-card {
    padding: 20px 22px 16px;
  }

  #training .section-title-wrap h2 {
    font-size: clamp(24px, 6vw, 32px);
  }

  #training .title-icon {
    flex-shrink: 0;
  }
}

/* Respect reduced-motion preferences */
@media (prefers-reduced-motion: reduce) {
  #training .credential-card,
  #training .credential-link,
  #training .credential-link svg {
    transition: none;
  }

  #training .credential-card:hover,
  #training .credential-link:hover svg {
    transform: none;
  }
}