/* ─── Reset & Variables ───────────────────────────────────────────────── */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  --bg:       #080808;
  --bg2:      #0e0e0e;
  --bg3:      #161616;
  --border:   #242424;
  --border2:  #333333;
  --text:     #efefef;
  --text2:    #999999;
  --text3:    #555555;
  --white:    #ffffff;
  --serif:    'EB Garamond', Georgia, 'Times New Roman', serif;
  --sans:     'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

html { scroll-behavior: smooth; font-size: 16px; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  line-height: 1.65;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  animation: pageFadeIn 0.5s ease forwards;
  transition: opacity 0.4s ease, transform 0.4s ease;
}

@keyframes pageFadeIn {
  from { opacity: 0; transform: translateY(15px); }
  to { opacity: 1; transform: translateY(0); }
}

body.fade-out {
  opacity: 0;
  transform: translateY(15px);
}

a { color: inherit; text-decoration: none; }
ul { list-style: none; padding: 0; }
sup { font-size: 0.7em; }

/* ─── Navbar ──────────────────────────────────────────────────────────── */
#navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 200;
  padding: 1.1rem 2rem;
  transition: background 0.35s, border-bottom 0.35s, padding 0.35s;
}
#navbar.scrolled {
  background: rgba(8, 8, 8, 0.92);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
  padding: 0.85rem 2rem;
}
.nav-container {
  max-width: 1160px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-brand {
  font-family: var(--serif);
  font-size: 1.05rem;
  font-weight: 500;
  color: var(--white);
  letter-spacing: 0.015em;
  transition: opacity 0.2s;
}
.nav-brand:hover { opacity: 0.75; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 2.25rem;
}
.nav-links a {
  font-size: 0.78rem;
  font-weight: 400;
  color: var(--text2);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--white); }

.nav-resume {
  padding: 0.38rem 1rem !important;
  border: 1px solid var(--border2) !important;
  color: var(--text) !important;
  letter-spacing: 0.06em !important;
  transition: background 0.2s, color 0.2s, border-color 0.2s !important;
}
.nav-resume:hover {
  background: var(--white) !important;
  color: var(--bg) !important;
  border-color: var(--white) !important;
}

/* Hamburger */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--text2);
  transition: background 0.2s;
}
.nav-toggle:hover span { background: var(--white); }

/* ─── Hero ────────────────────────────────────────────────────────────── */
#hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('Background.jpeg');
  background-size: cover;
  background-position: center 40%;
  opacity: 0.12;
  filter: grayscale(100%) contrast(1.1);
  transform: scale(1.04);
  transition: transform 8s ease;
}
#hero:hover .hero-bg { transform: scale(1.0); }

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    160deg,
    rgba(8,8,8,0.97) 0%,
    rgba(8,8,8,0.82) 55%,
    rgba(8,8,8,0.72) 100%
  );
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 2rem;
  padding-top: 90px;
  display: flex;
  gap: 4.5rem;
  align-items: center;
  width: 100%;
}

.hero-photo img {
  width: 190px;
  height: 230px;
  object-fit: cover;
  object-position: center top;
  filter: grayscale(15%) contrast(1.05);
  border: 1px solid var(--border2);
  display: block;
  flex-shrink: 0;
}

.hero-text { flex: 1; }

.hero-eyebrow {
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text3);
  margin-bottom: 0.6rem;
}

.hero-text h1 {
  font-family: var(--serif);
  font-size: clamp(3rem, 6vw, 5rem);
  font-weight: 500;
  line-height: 1.04;
  color: var(--white);
  letter-spacing: -0.015em;
  margin-bottom: 0.85rem;
}

.hero-subtitle {
  font-size: 0.95rem;
  color: var(--text2);
  font-weight: 300;
  margin-bottom: 0.2rem;
}

.hero-institution {
  font-size: 0.82rem;
  color: var(--text3);
  margin-bottom: 1.25rem;
  letter-spacing: 0.02em;
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-bottom: 1.5rem;
}
.hero-tags span {
  font-size: 0.7rem;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  padding: 0.25rem 0.7rem;
  border: 1px solid var(--border2);
  color: var(--text3);
}

.hero-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  align-items: center;
  margin-bottom: 2rem;
  font-size: 0.87rem;
}
.hero-links a { color: var(--text2); transition: color 0.2s; }
.hero-links a:hover { color: var(--white); }
.hero-links .sep { color: var(--text3); padding: 0 0.1rem; }

.hero-actions { display: flex; gap: 0.85rem; flex-wrap: wrap; }

.btn-primary {
  display: inline-block;
  padding: 0.65rem 1.65rem;
  background: var(--white);
  color: var(--bg);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: opacity 0.2s;
}
.btn-primary:hover { opacity: 0.84; }

.btn-secondary {
  display: inline-block;
  padding: 0.65rem 1.65rem;
  border: 1px solid var(--border2);
  color: var(--text2);
  font-size: 0.78rem;
  font-weight: 400;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: border-color 0.2s, color 0.2s;
}
.btn-secondary:hover { border-color: var(--text2); color: var(--text); }

.scroll-cue {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  color: var(--text3);
  font-size: 0.65rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  animation: fadeIn 1s ease 1.2s both;
  z-index: 2;
}
.scroll-line {
  width: 1px;
  height: 38px;
  background: linear-gradient(to bottom, var(--text3), transparent);
  animation: pulse 2.2s ease infinite;
}

@keyframes pulse { 0%,100%{opacity:.4; transform:scaleY(1)} 50%{opacity:1; transform:scaleY(1.08)} }
@keyframes fadeIn { from{opacity:0;transform:translateX(-50%) translateY(10px)} to{opacity:1;transform:translateX(-50%) translateY(0)} }

/* ─── Stats Bar ───────────────────────────────────────────────────────── */
#stats {
  background: var(--bg2);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 2.25rem 0;
}
.stats-container {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1.5rem 1rem;
}
.stat { text-align: center; }
.stat-number {
  display: block;
  font-family: var(--serif);
  font-size: 2.1rem;
  font-weight: 600;
  color: var(--white);
  line-height: 1;
  margin-bottom: 0.3rem;
}
.stat-number small { font-size: 1.1rem; color: var(--text2); }
.stat-label {
  font-size: 0.65rem;
  color: var(--text3);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

/* ─── Shared Section Styles ───────────────────────────────────────────── */
section { padding: 6rem 0; }

.container {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 2rem;
}

.section-title {
  font-family: var(--serif);
  font-size: clamp(1.85rem, 3.5vw, 2.75rem);
  font-weight: 500;
  color: var(--white);
  letter-spacing: -0.015em;
  margin-bottom: 0.4rem;
}
.section-sub {
  font-size: 0.73rem;
  color: var(--text3);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 3.5rem;
}

/* ─── Bullets (shared) ────────────────────────────────────────────────── */
.bullets { padding: 0; }
.bullets li {
  position: relative;
  padding-left: 1.3rem;
  font-size: 0.875rem;
  color: var(--text2);
  line-height: 1.65;
  margin-bottom: 0.3rem;
}
.bullets li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--text3);
  font-size: 0.8rem;
}
.bullets li a { color: var(--text); text-decoration: underline; text-underline-offset: 3px; text-decoration-color: var(--border2); transition: text-decoration-color 0.2s; }
.bullets li a:hover { text-decoration-color: var(--text); }

/* ─── Experience ──────────────────────────────────────────────────────── */
#experience { background: var(--bg2); }

.exp-list { display: flex; flex-direction: column; gap: 1px; margin-top: 3.5rem; }

.exp-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  padding: 1.75rem 2rem;
  transition: border-color 0.25s, background 0.25s;
}
.exp-card:hover { border-color: var(--border2); background: var(--bg3); }

.exp-meta-row {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 0.9rem;
}
.exp-meta-row:last-child { margin-bottom: 0; }

.exp-card h3 {
  font-family: var(--serif);
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 0.18rem;
}
.exp-card h3 a {
  color: var(--white);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-color: var(--border2);
  transition: text-decoration-color 0.2s;
}
.exp-card h3 a:hover { text-decoration-color: var(--white); }

.exp-role {
  font-size: 0.85rem;
  color: var(--text3);
  font-style: italic;
}

.exp-right { text-align: right; flex-shrink: 0; }
.exp-loc, .exp-date {
  display: block;
  font-size: 0.77rem;
  color: var(--text3);
  line-height: 1.5;
}

.exp-badge {
  display: inline-block;
  font-size: 0.62rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 0.15rem 0.55rem;
  margin-bottom: 0.45rem;
  border: 1px solid var(--border2);
  color: var(--text3);
}
.exp-badge.current { border-color: #3a3a3a; color: #aaa; }
.exp-badge.upcoming { border-color: #444; color: #bbb; }

/* ─── Roadmap / Timeline ──────────────────────────────────────────────── */
#roadmap { background: var(--bg); }

.timeline {
  position: relative;
  max-width: 940px;
  margin: 0 auto;
}

.tl-center-line {
  position: absolute;
  left: 50%;
  top: 0; bottom: 0;
  width: 1px;
  background: var(--border);
  transform: translateX(-50%);
  z-index: 0;
}

.year-label {
  position: relative;
  z-index: 2;
  display: flex;
  justify-content: center;
  margin: 2.5rem 0 1.5rem;
}
.year-bubble {
  font-family: var(--serif);
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--white);
  background: var(--bg);
  border: 1px solid var(--border2);
  padding: 0.45rem 1.4rem;
  letter-spacing: 0.04em;
}

/* Timeline rows */
.tl-row {
  position: relative;
  display: flex;
  align-items: flex-start;
  margin-bottom: 2rem;
  z-index: 1;
}
.tl-row.left { justify-content: flex-start; padding-right: calc(50% + 2rem); }
.tl-row.right { justify-content: flex-end; padding-left: calc(50% + 2rem); }

.tl-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  padding: 1.5rem 1.65rem;
  width: 100%;
  transition: border-color 0.25s;
}
.tl-card:hover { border-color: var(--border2); }
.tl-card.active { border-color: #3a3a3a; }

.tl-dot {
  position: absolute;
  left: 50%;
  top: 1.3rem;
  width: 10px;
  height: 10px;
  background: var(--border2);
  border-radius: 50%;
  transform: translateX(-50%);
  border: 2px solid var(--bg);
  box-shadow: 0 0 0 1px var(--border2);
  z-index: 3;
  flex-shrink: 0;
}
.active-dot {
  background: var(--white);
  box-shadow: 0 0 0 1px var(--white), 0 0 14px rgba(255,255,255,0.25);
}

.tl-period {
  font-size: 0.68rem;
  color: var(--text3);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 0.25rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.tl-school {
  font-family: var(--serif);
  font-size: 1rem;
  font-weight: 500;
  color: var(--white);
  margin-bottom: 1rem;
  line-height: 1.3;
}
.tl-block { margin-bottom: 1rem; }
.tl-block:last-child { margin-bottom: 0; }
.tl-block h4 {
  font-size: 0.65rem;
  font-weight: 600;
  color: var(--text3);
  letter-spacing: 0.13em;
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}
.tl-block ul li {
  font-size: 0.83rem;
  color: var(--text2);
  padding: 0.15rem 0 0.15rem 1.2rem;
  position: relative;
  line-height: 1.55;
}
.tl-block ul li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--text3);
  font-size: 0.78rem;
}
.tl-block ul li a {
  color: var(--text);
  text-decoration: underline;
  text-underline-offset: 2px;
  text-decoration-color: var(--border2);
  transition: text-decoration-color 0.2s;
}
.tl-block ul li a:hover { text-decoration-color: var(--text); }

.tag-row { display: flex; flex-wrap: wrap; gap: 0.35rem; }
.tag-row span {
  font-size: 0.67rem;
  padding: 0.22rem 0.6rem;
  border: 1px solid var(--border);
  color: var(--text3);
  background: var(--bg3);
  line-height: 1.4;
  letter-spacing: 0.02em;
}

.now-badge {
  display: inline-block;
  font-size: 0.6rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 0.1rem 0.45rem;
  background: var(--white);
  color: var(--bg);
  font-weight: 700;
  border-radius: 2px;
}

.upcoming-block .tl-block { margin-top: 0.25rem; }
.upcoming-block ul li { color: var(--text3); }

/* ─── Projects ────────────────────────────────────────────────────────── */
#projects { background: var(--bg2); }

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 1px;
  margin-top: 3.5rem;
  border: 1px solid var(--border);
}

.proj-card {
  background: var(--bg2);
  padding: 1.75rem;
  border: 1px solid transparent;
  transition: background 0.25s, border-color 0.25s;
}
.proj-card:hover { background: var(--bg3); border-color: var(--border2); }

.proj-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 0.3rem;
}
.proj-head h3 {
  font-family: var(--serif);
  font-size: 1.12rem;
  font-weight: 600;
  color: var(--white);
}
.proj-arrow {
  font-size: 1.2rem;
  color: var(--text3);
  line-height: 1;
  transition: color 0.2s, transform 0.2s;
}
.proj-arrow:hover { color: var(--white); transform: translate(2px, -2px); }

.proj-sub {
  font-size: 0.78rem;
  color: var(--text3);
  font-style: italic;
  margin-bottom: 1rem;
}

.tech-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-top: 1.1rem;
}
.tech-row span {
  font-size: 0.66rem;
  padding: 0.2rem 0.58rem;
  border: 1px solid var(--border);
  color: var(--text3);
  letter-spacing: 0.04em;
}

/* ─── Additional ──────────────────────────────────────────────────────── */
#additional { background: var(--bg); }

.add-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1.5rem;
  margin-top: 3.5rem;
}

.add-card {
  padding: 1.5rem 1.6rem;
  border: 1px solid var(--border);
  background: var(--bg2);
  transition: border-color 0.25s;
}
.add-card:hover { border-color: var(--border2); }

.add-card h3 {
  font-family: var(--serif);
  font-size: 1.05rem;
  font-weight: 500;
  color: var(--white);
  margin-bottom: 1rem;
  padding-bottom: 0.6rem;
  border-bottom: 1px solid var(--border);
}
.add-card ul li {
  font-size: 0.83rem;
  color: var(--text2);
  padding: 0.28rem 0;
  border-bottom: 1px solid var(--border);
  line-height: 1.5;
}
.add-card ul li:last-child { border-bottom: none; }
.add-card ul li strong { color: var(--text); font-weight: 500; }

/* ─── Footer ──────────────────────────────────────────────────────────── */
footer {
  background: var(--bg2);
  border-top: 1px solid var(--border);
  padding: 3rem 0;
}
.footer-inner { text-align: center; }
.footer-name {
  font-family: var(--serif);
  font-size: 1.6rem;
  color: var(--white);
  margin-bottom: 1.1rem;
}
.footer-links {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.5rem 2rem;
  margin-bottom: 1.1rem;
}
.footer-links a {
  font-size: 0.82rem;
  color: var(--text2);
  transition: color 0.2s;
}
.footer-links a:hover { color: var(--white); }
.footer-copy { font-size: 0.72rem; color: var(--text3); }

/* ─── Scroll animations ───────────────────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ─── Responsive ──────────────────────────────────────────────────────── */
@media (max-width: 900px) {
  .hero-content { gap: 2.5rem; }
  .hero-photo img { width: 150px; height: 185px; }
}

@media (max-width: 700px) {
  /* Nav */
  .nav-toggle { display: flex; }
  .nav-links {
    display: none;
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(8,8,8,0.97);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2.5rem;
    z-index: 190;
  }
  .nav-links.open { display: flex; }
  .nav-links a { font-size: 1rem !important; letter-spacing: 0.1em; }

  /* Hero */
  .hero-content {
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 2rem;
    padding-top: 110px;
  }
  .hero-photo img { width: 130px; height: 160px; }
  .hero-tags { justify-content: center; }
  .hero-links { justify-content: center; }
  .hero-actions { justify-content: center; }

  /* Stats */
  .stats-container { justify-content: center; gap: 1.5rem; }
  .stats-container .stat { min-width: 100px; }

  /* Timeline → single column */
  .tl-center-line { left: 1.25rem; }
  .tl-row { padding-right: 0 !important; padding-left: 3.5rem !important; justify-content: flex-start !important; }
  .tl-dot { left: 1.25rem !important; top: 1.2rem; }
  .year-label { justify-content: flex-start; padding-left: 3.5rem; }

  /* Projects */
  .projects-grid { grid-template-columns: 1fr; }

  /* Exp */
  .exp-meta-row { flex-direction: column; gap: 0.5rem; }
  .exp-right { text-align: left; }

  /* Additional */
  .add-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 440px) {
  .add-grid { grid-template-columns: 1fr; }
  .hero-text h1 { font-size: 2.6rem; }
  section { padding: 4rem 0; }
}