/* ===========================
   NILESH SEN — CLEAN PORTFOLIO
   =========================== */
:root {
  --bg: #0b0d16;
  --bg2: #10131f;
  --card: #151928;
  --border: #262c40;
  --text: #eef0f6;
  --muted: #8791a8;
  --accent: #5d6bff;
  --accent-strong: #4a56e6;
  --accent2: #34d399;
  --accent3: #f2b84b;
  --red: #ff6b6b;
  --font-head: 'Syne', sans-serif;
  --font-body: 'DM Sans', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  --radius: 12px;
  --trans: 0.3s ease;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: var(--font-body); background: var(--bg); color: var(--text); line-height: 1.7; overflow-x: hidden; font-size: 17px; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--accent); border-radius: 20px; }

/* ===========================
   SCROLL PROGRESS BAR
   =========================== */
.scroll-progress {
  position: fixed; top: 0; left: 0; height: 3px; width: 100%;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  transform: scaleX(0); transform-origin: left;
  z-index: 300; will-change: transform;
}

/* ===========================
   NAV
   =========================== */
nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  padding: 1.1rem 4rem;
  background: rgba(11,13,22,0.96);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid transparent;
  box-shadow: 0 2px 20px rgba(0,0,0,0.3);
  transition: border-color 0.4s var(--ease);
}
.nav-logo { font-family: var(--font-head); font-weight: 700; font-size: 1.2rem; color: var(--text); }
.nav-links { display: flex; gap: 2rem; }
.nav-links a {
  font-size: 0.88rem; color: var(--muted);
  letter-spacing: 0.06em; text-transform: uppercase;
  transition: color var(--trans); font-weight: 500;
  position: relative; padding-bottom: 2px;
}
.nav-links a::after {
  content: ""; position: absolute; bottom: -2px; left: 0;
  width: 0; height: 2px; background: var(--accent);
  transition: width 0.35s var(--ease);
}
.nav-links a:hover::after { width: 100%; }
.nav-links a:hover { color: var(--accent); }
.hamburger {
  display: none; flex-direction: column; gap: 5px;
  background: none; border: none; cursor: pointer; padding: 4px;
}
.hamburger span { display: block; width: 22px; height: 2px; background: var(--text); border-radius: 2px; transition: var(--trans); }
.mobile-menu {
  position: fixed; top: 57px; left: 0; right: 0;
  background: var(--bg2); border-bottom: 1px solid var(--border);
  z-index: 99; transform: translateY(-110%); transition: transform 0.4s var(--ease);
  padding: 1.5rem 2rem;
}
.mobile-menu.open { transform: translateY(0); }
.mobile-menu ul { display: flex; flex-direction: column; gap: 1rem; }
.mobile-menu a { font-size: 0.88rem; color: var(--muted); text-transform: uppercase; letter-spacing: 0.06em; }
.mobile-menu a:hover { color: var(--accent); }

/* ===========================
   BUTTONS
   =========================== */
.btn {
  display: inline-flex; align-items: center; gap: 0.4rem;
  padding: 0.8rem 1.8rem; border-radius: var(--radius);
  font-family: var(--font-body); font-size: 0.92rem; font-weight: 500;
  cursor: pointer; border: none; transition: transform 0.35s var(--ease), box-shadow 0.35s var(--ease), background 0.3s ease, border-color 0.3s ease, color 0.3s ease;
  text-decoration: none;
  will-change: transform;
}
.btn-primary { background: linear-gradient(135deg, var(--accent), var(--accent-strong)); color: #fff; box-shadow: 0 4px 18px rgba(93,107,255,0.22); }
.btn-primary:hover { background: linear-gradient(135deg, #6b78ff, var(--accent)); transform: translateY(-2px); box-shadow: 0 12px 32px rgba(93,107,255,0.4); }
.btn-secondary { background: var(--card); color: var(--text); border: 1px solid var(--border); }
.btn-secondary:hover { border-color: var(--accent); color: var(--accent); transform: translateY(-2px); box-shadow: 0 10px 24px rgba(0,0,0,0.3); }
.btn-outline { background: transparent; color: var(--text); border: 1px solid var(--border); }
.btn-outline:hover { border-color: var(--accent2); color: var(--accent2); transform: translateY(-2px); box-shadow: 0 10px 24px rgba(0,0,0,0.3); }

/* ===========================
   SECTIONS — base
   =========================== */
section { padding: 7rem 4rem; }
section:nth-child(even) { background: var(--bg2); }
.section-header { margin-bottom: 2.5rem; }
.section-label {
  font-family: var(--font-mono);
  font-size: 0.76rem; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--accent); font-weight: 500; margin-bottom: 0.5rem;
  display: flex; align-items: center; gap: 0.4rem;
}
.section-label::before { content: "// "; color: var(--muted); font-weight: 400; }
.section-title {
  font-family: var(--font-head);
  font-size: clamp(2.1rem, 3.5vw, 2.7rem);
  font-weight: 700; letter-spacing: -0.02em; color: var(--text);
  position: relative; display: inline-block;
}
.section-title::after {
  content: ""; position: absolute; left: 0; bottom: -10px;
  height: 3px; width: 42px; border-radius: 3px;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  transform: scaleX(0); transform-origin: left;
  transition: transform 0.6s var(--ease) 0.15s;
}
#snapshot .section-title::after,
#projects .section-title::after,
#github .section-title::after,
#contact .section-title::after { left: 50%; transform: translateX(-50%) scaleX(0); transform-origin: center; }
.section-header.reveal.visible .section-title::after { transform: scaleX(1); }
#snapshot .section-header.reveal.visible .section-title::after,
#projects .section-header.reveal.visible .section-title::after,
#github .section-header.reveal.visible .section-title::after,
#contact .section-header.reveal.visible .section-title::after { transform: translateX(-50%) scaleX(1); }
.section-sub { color: var(--muted); font-size: 1rem; margin-top: 0.5rem; }

/* ===========================
   1. HERO — PHOTO + TEXT SPLIT
   =========================== */
#hero {
  min-height: 100vh;
  display: flex; align-items: center; justify-content: center;
  padding: 7rem 4rem 4rem;
  position: relative;
  overflow: hidden;
  background: radial-gradient(ellipse 130% 90% at 50% -15%, #1b2444 0%, #0f1428 45%, #05060c 100%);
}

/* ===========================
   HERO STARFIELD (night-sky effect)
   =========================== */
.hero-stars {
  position: absolute; inset: 0; overflow: hidden; z-index: 0; pointer-events: none;
}
.star-layer {
  position: absolute; inset: -60px;
  background-repeat: repeat; border-radius: 50%;
}
.star-layer.stars-small { animation: starDrift 140s linear infinite; opacity: 0.65; }
.star-layer.stars-medium { animation: starDrift 90s linear infinite reverse; opacity: 0.8; }
.star-layer.stars-large { animation: starDrift 60s linear infinite, starTwinkle 3.6s ease-in-out infinite; }
@keyframes starDrift {
  from { transform: translate3d(0,0,0); }
  to { transform: translate3d(-120px,-260px,0); }
}
@keyframes starTwinkle {
  0%, 100% { opacity: 0.55; }
  50% { opacity: 1; }
}
.shooting-star {
  position: absolute;
  top: var(--sy, 12%); left: var(--sx, 75%);
  width: 3px; height: 3px; border-radius: 50%;
  background: #fff;
  filter: drop-shadow(0 0 6px rgba(255,255,255,0.9));
  opacity: 0;
}
.shooting-star::before {
  content: ""; position: absolute; top: 50%; right: 50%;
  width: 110px; height: 1px; transform-origin: right center;
  transform: translateY(-50%) rotate(0deg);
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.85));
}
.shooting-star.active { animation: shootMove 1.15s cubic-bezier(.3,.6,.4,1) forwards; }
@keyframes shootMove {
  0% { opacity: 1; transform: translate(0,0); }
  75% { opacity: 1; }
  100% { opacity: 0; transform: translate(-230px, 230px); }
}
.hero-spotlight {
  position: absolute; inset: 0; pointer-events: none; z-index: 0;
  background: radial-gradient(560px circle at var(--x, 50%) var(--y, 35%), rgba(93,107,255,0.10), transparent 65%);
  transition: opacity 0.4s ease;
}
.hero-content.hero-split {
  max-width: 1040px; width: 100%;
  display: grid; grid-template-columns: 300px 1fr; gap: 3.5rem; align-items: center;
  position: relative; z-index: 1; text-align: left;
}
.hero-content.hero-split > * {
  opacity: 0;
  transform: translateY(22px);
  animation: heroRise 0.8s var(--ease) forwards;
}
.hero-photo-wrap { animation-delay: 0.08s; }
.hero-text { animation-delay: 0.26s; }
@keyframes heroRise {
  to { opacity: 1; transform: translateY(0); }
}

/* Photo */
.hero-photo-wrap { position: relative; width: 260px; height: 260px; margin: 0 auto; }
.hero-photo-glow {
  position: absolute; inset: -16px; border-radius: 50%;
  background: radial-gradient(circle, rgba(93,107,255,0.38), transparent 70%);
  filter: blur(20px);
  animation: glowPulse 3.2s ease-in-out infinite;
}
@keyframes glowPulse { 0%,100% { opacity: 0.55; } 50% { opacity: 1; } }
.hero-photo-circle {
  position: relative; width: 100%; height: 100%; border-radius: 50%;
  overflow: hidden; background: var(--card);
  border: 3px solid var(--accent);
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 0 44px rgba(93,107,255,0.28);
}
.hero-photo { width: 100%; height: 100%; object-fit: cover; position: absolute; inset: 0; }
.hero-photo-initials { font-family: var(--font-head); font-size: 3.6rem; font-weight: 800; color: var(--accent); z-index: 0; }
.hero-photo-circle:not(.no-photo) .hero-photo-initials { display: none; }

/* Text column */
.hero-text { display: flex; flex-direction: column; align-items: flex-start; }
.hero-available {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(52,211,153,0.08);
  border: 1px solid rgba(52,211,153,0.25);
  color: var(--accent2); font-size: 0.82rem;
  padding: 0.4rem 1rem; border-radius: 100px;
  margin-bottom: 1.3rem;
}
.dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--accent2); flex-shrink: 0;
  animation: pulse 2s infinite;
}
@keyframes pulse { 0%,100%{opacity:1;transform:scale(1);} 50%{opacity:0.4;transform:scale(0.8);} }
.hero-greeting { font-size: 1.1rem; color: var(--muted); margin-bottom: 0.2rem; }
.hero-name {
  font-family: var(--font-head);
  font-size: clamp(2.6rem, 5vw, 4.2rem);
  font-weight: 800; letter-spacing: -0.03em; line-height: 1.05;
  margin-bottom: 0.4rem;
}
.accent-text { color: var(--accent); }
.hero-role {
  font-family: var(--font-head);
  font-size: clamp(1.25rem, 2.4vw, 1.6rem);
  font-weight: 600; color: var(--text);
  margin-bottom: 0.7rem;
}
.hero-typing {
  font-family: 'DM Sans', monospace; font-size: 1.05rem; font-weight: 500;
  color: var(--accent2); margin-bottom: 1.1rem; min-height: 1.4rem;
}
.typing-cursor { display: inline-block; margin-left: 2px; animation: blinkCursor 0.9s steps(1) infinite; }
@keyframes blinkCursor { 50% { opacity: 0; } }
.hero-intro { font-size: 1rem; color: var(--muted); max-width: 540px; line-height: 1.8; margin-bottom: 2rem; }
.hero-btns { display: flex; gap: 1rem; flex-wrap: wrap; justify-content: flex-start; margin-bottom: 1.6rem; }
.hero-socials { display: flex; gap: 0.7rem; }
.hero-social-icon {
  width: 42px; height: 42px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  background: var(--card); border: 1px solid var(--border);
  font-size: 1.05rem; font-weight: 600; color: var(--text);
  transition: transform 0.3s var(--ease), border-color 0.3s ease, color 0.3s ease;
}
.hero-social-icon:hover { border-color: var(--accent); color: var(--accent); transform: translateY(-3px); }

/* ===========================
   2. SNAPSHOT — CENTERED HEADER + CENTERED CARD CONTENT
   =========================== */
#snapshot .section-header { text-align: center; }
#snapshot .section-label { justify-content: center; }
#snapshot .section-title { text-align: center; }

.snapshot-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1rem; max-width: 960px; margin: 0 auto;
}
.snapshot-card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 1.4rem 1.6rem;
  display: flex; align-items: center; justify-content: center;
  gap: 1rem; transition: border-color 0.35s var(--ease), transform 0.35s var(--ease), box-shadow 0.35s var(--ease);
  text-align: center;
}
.snapshot-card:hover { border-color: var(--accent); transform: translateY(-4px); box-shadow: 0 14px 30px rgba(0,0,0,0.28); }
.highlight-card { border-color: rgba(52,211,153,0.35); background: rgba(52,211,153,0.04); }
.highlight-card:hover { border-color: var(--accent2); }
.snapshot-icon { font-size: 1.8rem; flex-shrink: 0; display: inline-block; transition: transform 0.35s var(--ease); }
.snapshot-card:hover .snapshot-icon { transform: scale(1.15) rotate(-6deg); }
.snapshot-info { text-align: center; }
.snapshot-key { font-size: 0.75rem; color: var(--muted); text-transform: uppercase; letter-spacing: 0.1em; margin-bottom: 3px; }
.snapshot-val { font-size: 1rem; font-weight: 500; color: var(--text); }

/* ===========================
   3. ABOUT — LEFT ALIGNED TEXT
   =========================== */
#about .section-header { text-align: left; }
#about .section-label { justify-content: flex-start; }

.about-wrapper {
  display: grid; grid-template-columns: 320px 1fr;
  gap: 3.5rem; align-items: start; max-width: 1000px;
}
.about-photo-box {
  width: 300px; height: 360px; border-radius: 20px;
  border: 2px solid var(--border); overflow: hidden;
  background: var(--card);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0; position: relative;
  transition: border-color 0.35s var(--ease), transform 0.35s var(--ease);
}
.about-photo-box:hover { border-color: var(--accent); transform: translateY(-4px); }
.about-photo { width: 100%; height: 100%; object-fit: cover; position: absolute; inset: 0; transition: transform 0.5s var(--ease); }
.about-photo-box:hover .about-photo { transform: scale(1.05); }
.about-initials { font-family: var(--font-head); font-size: 4rem; font-weight: 800; color: var(--accent); z-index: 0; }
.about-photo-box:not(.no-photo) .about-initials { display: none; }
.about-text-box { text-align: left; }
.about-text-box p { color: var(--muted); font-size: 1.05rem; line-height: 1.9; margin-bottom: 1.1rem; }
.about-text-box p:last-of-type { margin-bottom: 1.5rem; }
.about-tags { display: flex; flex-wrap: wrap; gap: 0.5rem; justify-content: flex-start; }
.about-tags span {
  background: rgba(93,107,255,0.08); border: 1px solid rgba(93,107,255,0.2);
  color: var(--accent); font-size: 0.8rem; font-family: var(--font-mono);
  padding: 0.25rem 0.75rem; border-radius: 6px;
  transition: transform 0.3s var(--ease), background 0.3s ease, border-color 0.3s ease;
}
.about-tags span:hover { transform: translateY(-3px); background: rgba(93,107,255,0.16); border-color: rgba(93,107,255,0.4); }

/* ===========================
   4. SKILLS — LEFT ALIGNED
   =========================== */
#skills .section-header { text-align: left; }
#skills .section-label { justify-content: flex-start; }

.skills-table {
  max-width: 750px; border: 1px solid var(--border);
  border-radius: var(--radius); overflow: hidden;
}
.skill-row {
  display: grid; grid-template-columns: 160px 1fr;
  border-bottom: 1px solid var(--border);
  transition: background var(--trans);
}
.skill-row:last-child { border-bottom: none; }
.skill-row:hover { background: rgba(93,107,255,0.03); }
.skill-category-name {
  padding: 1rem 1.2rem;
  font-size: 0.84rem; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.1em;
  color: var(--muted); border-right: 1px solid var(--border);
  display: flex; align-items: center;
  background: rgba(255,255,255,0.015);
}
.skill-items { padding: 1rem 1.2rem; display: flex; flex-wrap: wrap; gap: 0.5rem; align-items: center; justify-content: flex-start; }
.skill-items span {
  background: var(--card); border: 1px solid var(--border);
  color: var(--text); font-size: 0.9rem; padding: 8px 14px; border-radius: 999px;
  transition: transform 0.3s var(--ease), border-color 0.3s ease, color 0.3s ease, box-shadow 0.3s ease;
}
.skill-items span:hover { border-color: var(--accent); color: var(--accent); transform: translateY(-3px); box-shadow: 0 8px 18px rgba(93,107,255,0.18); }
.soft-skills-row {
  display: flex; align-items: center; flex-wrap: wrap;
  gap: 0.6rem; margin-top: 1.75rem; padding: 1rem 1.25rem;
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius); max-width: 750px; justify-content: flex-start;
}
.soft-label { font-size: 0.78rem; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; color: var(--accent); margin-right: 0.5rem; }
.soft-item { font-size: 0.9rem; color: var(--text); font-weight: 500; }
.soft-sep { color: var(--border); font-size: 0.85rem; }

/* ===========================
   5. PROJECTS — HEADER CENTERED + CARDS STACK ANIMATION
   =========================== */
#projects .section-header { text-align: center; }
#projects .section-label { justify-content: center; }
#projects .section-title { text-align: center; }

/* Card stack animation — projects only */
.project-block {
  background: var(--card); border: 1px solid var(--border);
  border-radius: 16px; padding: 2rem;
  margin-bottom: 2rem;
  /* Stack entrance: starts slightly down and transparent */
  opacity: 0;
  transform: translateY(40px) scale(0.98);
  transition: opacity 0.6s var(--ease), transform 0.6s var(--ease), border-color 0.3s ease, box-shadow 0.3s ease;
}
.project-block.stack-visible {
  opacity: 1;
  transform: translateY(0) scale(1);
}
/* Stagger delays */
.project-block:nth-child(1) { transition-delay: 0s; }
.project-block:nth-child(2) { transition-delay: 0.12s; }
.project-block:nth-child(3) { transition-delay: 0.24s; }

.project-block:hover {
  border-color: var(--accent);
  transform: translateY(-8px) scale(1);
  box-shadow: 0 25px 50px rgba(0,0,0,.25);
}
.project-top {
  display: flex; align-items: flex-start; gap: 1.5rem;
  margin-bottom: 1.75rem; padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border); flex-wrap: wrap;
}
.project-num { font-family: var(--font-head); font-size: 2.8rem; font-weight: 800; color: var(--border); line-height: 1; flex-shrink: 0; transition: color 0.35s var(--ease); }
.project-block:hover .project-num { color: var(--accent); }
.project-header-info { flex: 1; text-align: left; }
.project-name { font-family: var(--font-head); font-size: 1.7rem; font-weight: 700; line-height: 1.2; margin-bottom: 0.6rem; }
.project-subtitle { font-family: var(--font-body); font-size: 0.88rem; font-weight: 400; color: var(--muted); display: block; margin-top: 0.2rem; }
.project-stack-inline { display: flex; flex-wrap: wrap; gap: 0.4rem; justify-content: flex-start; }
.project-stack-inline span {
  background: rgba(93,107,255,0.08); border: 1px solid rgba(93,107,255,0.2);
  color: var(--accent); font-size: 0.82rem; font-weight: 500;
  padding: 6px 12px; border-radius: 999px;
}
.project-btn-group { display: flex; gap: 0.6rem; align-self: flex-start; flex-wrap: wrap; }
.project-github-btn {
  display: inline-flex; align-items: center;
  background: var(--bg); border: 1px solid var(--border);
  color: var(--muted); font-size: 0.86rem;
  padding: 0.5rem 1rem; border-radius: 8px;
  transition: transform 0.3s var(--ease), border-color 0.3s ease, color 0.3s ease; white-space: nowrap;
}
.project-github-btn:hover { border-color: var(--accent); color: var(--accent); transform: translateY(-2px); }
.project-demo-btn {
  display: inline-flex; align-items: center;
  background: var(--accent); border: 1px solid var(--accent);
  color: #fff; font-size: 0.86rem; font-weight: 500;
  padding: 0.5rem 1rem; border-radius: 8px;
  transition: transform 0.3s var(--ease), background 0.3s ease, box-shadow 0.3s var(--ease); white-space: nowrap;
}
.project-demo-btn:hover { background: #4a56e6; transform: translateY(-2px); box-shadow: 0 10px 22px rgba(93,107,255,0.3); }

/* Description, tech stack, and highlights below the screenshot */
.project-block-label { font-size: 0.72rem; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase; color: var(--accent); margin-bottom: 0.5rem; }
.project-desc { font-size: 0.98rem; color: var(--muted); line-height: 1.8; margin-bottom: 1.25rem; text-align: left; }
.project-stack-inline { margin-bottom: 1.5rem; }
.project-highlights { margin-bottom: 1.6rem; text-align: left; }
.highlights-label { font-size: 0.72rem; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase; color: var(--accent2); margin-bottom: 0.7rem; }
.highlights-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0.6rem 1.25rem; }
.highlights-grid span { display: flex; align-items: flex-start; gap: 0.5rem; font-size: 0.88rem; color: var(--text); line-height: 1.5; }
.hl-check { font-style: normal; color: var(--accent2); font-weight: 700; flex-shrink: 0; margin-top: 1px; }

/* Backend Highlights — quiet tag row, distinct from the checklist above */
.project-tags-section { margin-bottom: 1.6rem; text-align: left; }
.project-tags-row { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.project-tags-row span {
  background: rgba(52,211,153,0.06); border: 1px solid rgba(52,211,153,0.22); color: var(--accent2);
  font-size: 0.82rem; font-weight: 500; padding: 0.35rem 0.85rem; border-radius: 999px;
}

/* Impact — plain bullet list */
.project-impact { margin-bottom: 1.6rem; text-align: left; }
.impact-list { list-style: none; display: flex; flex-direction: column; gap: 0.5rem; }
.impact-list li { position: relative; padding-left: 1.1rem; font-size: 0.94rem; color: var(--text); line-height: 1.7; }
.impact-list li::before { content: "•"; position: absolute; left: 0; color: var(--accent3); font-weight: 700; }

/* Screenshot panel — real image with a graceful placeholder until one is provided */
.project-visual {
  background: var(--bg); border: 1px solid var(--border); border-radius: 14px;
  overflow: hidden; position: relative;
  margin-bottom: 1.5rem;
  transition: border-color 0.35s ease;
}
.project-block:hover .project-visual { border-color: rgba(93,107,255,0.35); }
.project-screenshot-img { width: 100%; height: auto; display: block; }
.project-visual.no-shot .project-screenshot-img { display: none; }
.screenshot-placeholder {
  display: none; flex-direction: column; align-items: center; justify-content: center; gap: 0.6rem;
  min-height: 280px; padding: 2rem; text-align: center;
  background:
    repeating-linear-gradient(45deg, rgba(255,255,255,0.015) 0 2px, transparent 2px 14px);
}
.project-visual.no-shot .screenshot-placeholder { display: flex; }
.screenshot-placeholder-icon { font-size: 2.2rem; opacity: 0.45; }
.screenshot-placeholder-text { font-family: var(--font-mono); font-size: 0.85rem; color: var(--muted); }
.screenshot-placeholder-hint { font-size: 0.78rem; color: var(--muted); opacity: 0.75; }

.project-details { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.project-detail-card {
  background: var(--bg); border: 1px solid var(--border);
  border-radius: 10px; padding: 1rem 1.2rem; text-align: left;
  transition: border-color 0.3s ease;
}
.full-width { grid-column: 1 / -1; }
.pd-label { font-size: 0.74rem; font-weight: 700; letter-spacing: 0.15em; text-transform: uppercase; color: var(--accent); margin-bottom: 0.5rem; }
.pd-text { font-size: 1rem; color: var(--muted); line-height: 1.85; }
.pd-features { display: flex; flex-wrap: wrap; gap: 0.4rem; justify-content: flex-start; }
.pd-features span {
  background: rgba(52,211,153,0.07); border: 1px solid rgba(52,211,153,0.2);
  color: var(--accent2); font-size: 0.82rem;
  padding: 0.2rem 0.65rem; border-radius: 6px;
  transition: transform 0.3s var(--ease);
}
.pd-features span:hover { transform: translateY(-2px); }
.impact-card { background: rgba(52,211,153,0.04) !important; border-color: rgba(52,211,153,0.2) !important; }
.impact-card .pd-label { color: var(--accent2) !important; }
.impact-card .pd-text { color: var(--text) !important; font-weight: 400; }

/* ===========================
   6. GITHUB — CARDS CENTERED
   =========================== */
#github .section-header { text-align: center; }
#github .section-label { justify-content: center; }
#github .section-title { text-align: center; }

.github-wrapper { display: flex; flex-direction: column; gap: 2rem; max-width: 1000px; margin: 0 auto; }
.github-profile {
  background: var(--card); border: 1px solid var(--border);
  border-radius: 16px; padding: 1.75rem;
  display: flex; align-items: center; justify-content: center;
  gap: 1.5rem; flex-wrap: wrap; text-align: center;
}
.github-avatar-box {
  font-size: 2.5rem; width: 64px; height: 64px;
  background: rgba(242,184,75,0.1); border: 1px solid rgba(242,184,75,0.2);
  border-radius: 50%; display: flex; align-items: center;
  justify-content: center; flex-shrink: 0;
  transition: transform 0.4s var(--ease);
}
.github-profile:hover .github-avatar-box { transform: rotate(-10deg) scale(1.08); }
.github-profile-info { flex: 1; text-align: center; }
.github-username { font-family: var(--font-head); font-size: 1.3rem; font-weight: 700; }
.github-bio { font-size: 0.88rem; color: var(--muted); margin-top: 0.3rem; }
.pinned-label { font-size: 0.72rem; letter-spacing: 0.15em; text-transform: uppercase; color: var(--muted); text-align: center; }
.pinned-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 1rem; }
.pinned-card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 1.25rem;
  display: flex; flex-direction: column; gap: 0.5rem;
  align-items: center; text-align: center;
  transition: border-color 0.35s var(--ease), transform 0.35s var(--ease), box-shadow 0.35s var(--ease);
}
.pinned-card:hover { border-color: var(--accent); transform: translateY(-6px); box-shadow: 0 16px 34px rgba(0,0,0,0.28); }
.pinned-icon { font-size: 1.4rem; transition: transform 0.35s var(--ease); }
.pinned-card:hover .pinned-icon { transform: scale(1.2); }
.pinned-name { font-family: var(--font-head); font-weight: 700; font-size: 1rem; }
.pinned-desc { font-size: 0.88rem; color: var(--muted); line-height: 1.7; flex: 1; }
.pinned-tags { display: flex; flex-wrap: wrap; gap: 0.35rem; justify-content: center; }
.pinned-tags span {
  background: rgba(93,107,255,0.07); border: 1px solid rgba(93,107,255,0.18);
  color: var(--accent); font-size: 0.76rem; padding: 0.15rem 0.55rem; border-radius: 4px;
}
.pinned-link { font-size: 0.84rem; color: var(--accent); font-weight: 500; transition: color var(--trans); }
.pinned-link:hover { color: #fff; }

/* ===========================
   7. CERTIFICATIONS — LEFT ALIGNED
   =========================== */
#certifications .section-header { text-align: left; }
#certifications .section-label { justify-content: flex-start; }

.certs-grid { display: flex; flex-direction: column; gap: 1.2rem; max-width: 800px; }
.cert-card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 1.5rem;
  display: flex; gap: 1.5rem; align-items: flex-start;
  transition: border-color 0.35s var(--ease), transform 0.35s var(--ease), box-shadow 0.35s var(--ease); text-align: left;
}
.cert-card:hover { border-color: var(--accent); transform: translateY(-6px); box-shadow: 0 16px 34px rgba(0,0,0,0.28); }
.cert-left { flex-shrink: 0; }
.cert-icon {
  font-size: 2rem; width: 52px; height: 52px;
  background: rgba(93,107,255,0.08); border: 1px solid rgba(93,107,255,0.2);
  border-radius: 10px; display: flex; align-items: center; justify-content: center;
  transition: transform 0.35s var(--ease);
}
.cert-card:hover .cert-icon { transform: rotate(-8deg) scale(1.08); }
.cert-right { text-align: left; flex: 1; }
.cert-issuer { font-size: 0.72rem; color: var(--accent); text-transform: uppercase; letter-spacing: 0.1em; font-weight: 600; margin-bottom: 0.4rem; }
.cert-name { font-family: var(--font-head); font-weight: 700; font-size: 1.05rem; margin-bottom: 0.5rem; }
.cert-desc { font-size: 0.9rem; color: var(--muted); line-height: 1.75; margin-bottom: 1rem; }
.cert-footer { display: flex; align-items: center; gap: 1rem; }
.cert-year { font-size: 0.72rem; color: var(--muted); background: var(--bg); border: 1px solid var(--border); padding: 0.2rem 0.65rem; border-radius: 100px; }
.cert-link { font-size: 0.88rem; color: var(--accent2); font-weight: 500; transition: color var(--trans); }
.cert-link:hover { color: var(--accent); }

/* ===========================
   8. RESUME — LEFT ALIGNED
   =========================== */
#resume .section-header { text-align: left; }
#resume .section-label { justify-content: flex-start; }

.resume-wrapper { display: grid; grid-template-columns: 7fr 3fr; gap: 2.25rem; align-items: start; max-width: 1000px; }

.resume-preview-col { display: flex; flex-direction: column; gap: 0.9rem; }
.resume-preview-card {
  position: relative; border-radius: 16px; overflow: hidden;
  border: 1px solid var(--border); background: var(--card);
  box-shadow: 0 24px 55px rgba(0,0,0,0.35);
  aspect-ratio: 8.5 / 11; max-height: 680px;
  transition: border-color 0.35s ease, box-shadow 0.35s ease;
}
.resume-preview-card:hover { border-color: var(--accent); box-shadow: 0 28px 65px rgba(0,0,0,0.42); }
.resume-preview-embed {
  width: 100%; height: 100%; display: block; border: none;
}
.resume-preview-fallback { width: 100%; height: 100%; padding: 2.2rem 2rem; display: flex; flex-direction: column; }
.rpf-header { display: flex; align-items: center; gap: 0.9rem; margin-bottom: 1.4rem; }
.rpf-avatar {
  width: 46px; height: 46px; border-radius: 50%; background: var(--accent); color: #fff;
  font-family: var(--font-head); font-weight: 700; font-size: 0.95rem;
  display: flex; align-items: center; justify-content: center; flex-shrink: 0;
}
.rpf-name { height: 13px; width: 150px; background: var(--border); border-radius: 4px; margin-bottom: 7px; }
.rpf-role { height: 8px; width: 100px; background: var(--border); border-radius: 4px; opacity: 0.55; }
.rpf-section-title { height: 9px; width: 34%; background: var(--accent); opacity: 0.45; border-radius: 4px; margin: 1.1rem 0 0.7rem; }
.rpf-line { height: 7px; background: var(--border); border-radius: 4px; margin-bottom: 8px; opacity: 0.7; }
.rpf-line.w90 { width: 90%; } .rpf-line.w75 { width: 75%; } .rpf-line.w60 { width: 60%; } .rpf-line.w40 { width: 40%; }

.resume-actions { display: flex; flex-direction: column; gap: 0.75rem; position: sticky; top: 80px; }
.resume-btn { width: 100%; justify-content: center; }
.resume-btn-lg { padding: 1rem 1.6rem; font-size: 0.98rem; font-weight: 600; }
.resume-info-box {
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 1.2rem;
  display: flex; flex-direction: column; gap: 0.75rem; margin-top: 0.5rem; text-align: left;
}
.resume-info-title { font-size: 0.72rem; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase; color: var(--accent2); margin-bottom: 0.1rem; }
.ri-item { display: flex; align-items: center; gap: 0.6rem; font-size: 0.9rem; color: var(--muted); transition: color 0.3s ease, transform 0.3s var(--ease); }
.ri-item:hover { color: var(--text); transform: translateX(3px); }
.ri-item span { color: var(--text); }

/* ===========================
   9. CONTACT — CENTERED
   =========================== */
#contact .section-header { text-align: center; }
#contact .section-label { justify-content: center; }
#contact .section-sub { text-align: center; }

.contact-wrapper {
  display: grid; grid-template-columns: 1fr 1.15fr;
  gap: 1.5rem; max-width: 980px; margin: 0 auto; align-items: start;
  text-align: left;
}

/* Contact info list */
.contact-list { display: flex; flex-direction: column; gap: 0.85rem; }
.contact-row {
  display: flex; align-items: center; gap: 1rem;
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 1.1rem 1.3rem;
  transition: border-color 0.35s var(--ease), transform 0.35s var(--ease), box-shadow 0.35s var(--ease);
  cursor: pointer;
}
.contact-row-static { cursor: default; }
.contact-row:hover { border-color: var(--accent); transform: translateY(-4px); box-shadow: 0 14px 30px rgba(0,0,0,0.28); }
.contact-row-icon {
  font-size: 1.2rem; flex-shrink: 0; width: 42px; height: 42px;
  border-radius: 10px; display: flex; align-items: center; justify-content: center;
  background: rgba(93,107,255,0.08); border: 1px solid rgba(93,107,255,0.2);
  transition: transform 0.35s var(--ease);
}
.contact-row:hover .contact-row-icon { transform: scale(1.12) rotate(-4deg); }
.contact-row-info { min-width: 0; }
.contact-row-label { font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.1em; color: var(--muted); margin-bottom: 2px; }
.contact-row-value { font-size: 0.95rem; color: var(--text); font-weight: 500; word-break: break-word; }

/* Contact form */
.contact-form-card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 1.75rem;
  display: flex; flex-direction: column; gap: 1.1rem;
  transition: border-color 0.35s ease;
}

.resume-preview-fallback {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  padding: 2.5rem 1.5rem;
  text-align: center;
  height: 100%;
}

.rpf-fallback-text {
  color: #9a9ab0;
  font-size: 0.9rem;
  max-width: 280px;
  margin: 0;
}
.contact-form-card:focus-within { border-color: var(--accent); }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.form-field { display: flex; flex-direction: column; gap: 0.5rem; text-align: left; }
.form-field label { font-size: 0.76rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--muted); font-weight: 600; }
.form-field input, .form-field textarea {
  background: var(--bg); border: 1px solid var(--border); border-radius: 8px;
  padding: 0.7rem 0.9rem; color: var(--text); font-family: var(--font-body); font-size: 0.92rem;
  transition: border-color 0.3s ease, box-shadow 0.3s ease; resize: vertical;
}
.form-field input:focus, .form-field textarea:focus {
  outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(93,107,255,0.15);
}
.form-field input::placeholder, .form-field textarea::placeholder { color: var(--muted); }
.form-submit-btn { align-self: flex-start; }
.form-note { font-size: 0.8rem; color: var(--muted); margin-top: -0.4rem; }

/* ===========================
   FOOTER
   =========================== */
footer { padding: 2rem 3rem; border-top: 1px solid rgba(255,255,255,0.08); background: var(--bg2); text-align: center; }
.footer-inner { display: flex; align-items: center; justify-content: center; gap: 0.75rem; flex-wrap: wrap; color: var(--muted); font-size: 0.88rem; }
.footer-name { font-family: var(--font-head); font-weight: 700; color: var(--text); }
.footer-sep { color: var(--border); }

/* ===========================
   REVEAL — only non-project elements
   =========================== */
.reveal { opacity: 0; transform: translateY(16px); transition: opacity 0.5s var(--ease), transform 0.5s var(--ease); }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ===========================
   BUTTON MAGNETIC WRAPPER
   (JS sets --mx / --my; harmless if unset)
   =========================== */
.btn { transform: translate(var(--mx, 0), var(--my, 0)) translateY(0); }
.btn:hover { transform: translate(var(--mx, 0), var(--my, 0)) translateY(-2px); }

/* ===========================
   RESPONSIVE
   =========================== */
@media(max-width: 900px) {
  .hero-content.hero-split { grid-template-columns: 1fr; text-align: center; justify-items: center; }
  .hero-text { align-items: center; }
  .hero-name, .hero-role, .hero-typing, .hero-intro { text-align: center; }
  .hero-intro { max-width: 100%; }
  .hero-btns, .hero-socials { justify-content: center; }
}
@media(max-width: 768px) {
  nav { padding: 1rem 1.5rem; }
  .nav-links { display: none; }
  .hamburger { display: flex; }
  section { padding: 5rem 1.5rem; }
  #hero { padding: 6rem 1.5rem 3rem; }
  .hero-btns { flex-direction: column; align-items: center; }
  .about-wrapper { grid-template-columns: 1fr; gap: 2rem; }
  .about-photo-box { width: 180px !important; height: 220px !important; margin: 0 auto; }
  .project-details { grid-template-columns: 1fr; }
  .full-width { grid-column: 1; }
  .highlights-grid { grid-template-columns: 1fr; }
  .resume-wrapper { grid-template-columns: 1fr; }
  .resume-actions { position: static; }
  .skill-row { grid-template-columns: 1fr; }
  .skill-category-name { border-right: none; border-bottom: 1px solid var(--border); }
  .github-profile { flex-direction: column; }
  .project-top { flex-direction: column; }
  .project-btn-group { flex-direction: row; }
  .snapshot-grid { grid-template-columns: 1fr; }
  .contact-wrapper { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
}
@media(max-width: 480px) {
  section { padding: 4rem 1.2rem; }
  #hero { padding: 5.5rem 1.2rem 3rem; }
  nav { padding: 1rem 1.2rem; }
  .hero-photo-wrap { width: 200px; height: 200px; }
  .project-block { padding: 1.2rem; }
  .screenshot-placeholder { min-height: 200px; padding: 1.5rem; }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  .project-block { transition: none; opacity: 1; transform: none; }
  .reveal { transition: none; opacity: 1; transform: none; }
  .dot { animation: none; }
  .hero-content.hero-split > * { animation: none; opacity: 1; transform: none; }
  .hero-photo-glow { animation: none; }
  .typing-cursor { animation: none; }
  .hero-spotlight { display: none; }
  .star-layer { animation: none; }
  .shooting-star { display: none; }
  .scroll-progress { display: none; }
  .section-title::after { transition: none; }
  .btn { transform: none !important; }
}