:root {
  --bg: #0f1419;
  --bg2: #1a202c;
  --surface: rgba(30,41,59,0.6);
  --surface2: rgba(30,41,59,0.4);
  --border: rgba(6,182,212,0.2);
  --accent: #06b6d4;
  --accent2: #06d6d6;
  --accent3: #164e63;
  --text: #e2e8f0;
  --muted: #94a3b8;
  --muted2: #64748b;
  --card-shadow: 0 4px 32px rgba(6,182,212,0.15), 0 1.5px 6px rgba(6,182,212,0.1);
  --card-shadow-hover: 0 12px 48px rgba(6,182,212,0.25), 0 2px 8px rgba(6,182,212,0.15);
}

* { margin:0; padding:0; box-sizing:border-box; }
html { scroll-behavior: smooth; }

body {
  font-family: 'DM Sans', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
}

/* Soft background blobs - Cyan theme */
body::before {
  content: '';
  position: fixed;
  top: -120px; left: -120px;
  width: 600px; height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(6,182,212,0.3) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}
body::after {
  content: '';
  position: fixed;
  bottom: -100px; right: -100px;
  width: 500px; height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(6,182,212,0.2) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

/* NAV */
nav {
  position: sticky; top: 0; z-index: 100;
  background: rgba(15,20,25,0.85);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--border);
  padding: 0 48px;
  height: 64px;
  display: flex; align-items: center; justify-content: space-between;
}
.nav-logo {
  font-family: 'Syne', sans-serif;
  font-weight: 800; font-size: 1.1rem;
  color: var(--accent);
  letter-spacing: -0.5px;
}
.nav-links { display: flex; gap: 36px; }
.nav-links a {
  font-family: 'DM Sans', sans-serif;
  font-weight: 500; font-size: 0.92rem;
  color: var(--muted);
  text-decoration: none;
  transition: color .2s;
  letter-spacing: 0.01em;
  position: relative;
}
.nav-links a::after {
  content: '';
  position: absolute; bottom: -4px; left: 0; right: 0;
  height: 2px; border-radius: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transition: transform .2s;
}
.nav-links a:hover { color: var(--accent); }
.nav-links a:hover::after { transform: scaleX(1); }

/* HERO */
.hero {
  position: relative; z-index: 1;
  max-width: 1100px; margin: 0 auto;
  padding: 90px 40px 70px;
  display: flex; align-items: center; gap: 60px;
}
.hero-text { flex: 1; }
.hero-greeting {
  font-family: 'DM Sans', sans-serif;
  font-size: 1rem; font-weight: 500;
  color: var(--accent);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 14px;
  display: flex; align-items: center; gap: 8px;
}
.hero-greeting::before {
  content: '';
  display: inline-block; width: 32px; height: 2px;
  background: var(--accent); border-radius: 2px;
}
.hero-name {
  font-family: 'Syne', sans-serif;
  font-size: clamp(2.4rem, 5vw, 3.8rem);
  font-weight: 800;
  line-height: 1.08;
  color: var(--accent);
  letter-spacing: -1.5px;
  margin-bottom: 20px;
}
.hero-name span { color: var(--accent); }
.hero-desc {
  color: var(--muted);
  font-size: 1.05rem; font-weight: 400;
  max-width: 480px;
  margin-bottom: 36px;
  line-height: 1.75;
}
.hero-buttons { display: flex; flex-wrap: wrap; gap: 12px; }
.btn {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 11px 24px;
  border-radius: 999px;
  font-family: 'DM Sans', sans-serif;
  font-weight: 600; font-size: 0.9rem;
  text-decoration: none;
  transition: all .25s;
  cursor: pointer;
  border: none;
  letter-spacing: 0.01em;
}
.btn-primary {
  background: var(--accent);
  color: #0f1419;
  box-shadow: 0 4px 18px rgba(6,182,212,0.4);
}
.btn-primary:hover {
  background: #06d6d6;
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(6,182,212,0.5);
}
.btn-outline {
  background: transparent;
  color: var(--accent);
  border: 1.5px solid var(--accent);
  backdrop-filter: blur(8px);
}
.btn-outline:hover {
  background: var(--accent);
  color: #0f1419;
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(6,182,212,0.3);
}

/* Hero image side */
.hero-image-side {
  flex-shrink: 0;
  position: relative;
  display: flex; align-items: center; justify-content: center;
}
.hero-img-wrap {
  position: relative;
  width: 260px; height: 300px;
}
.hero-img-bg {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 2px solid var(--accent);
  background: radial-gradient(circle at 30% 30%, rgba(6,182,212,0.2) 0%, transparent 60%);
  transform: rotate(4deg);
  z-index: 0;
  box-shadow: 0 0 40px rgba(6,182,212,0.3), inset 0 0 40px rgba(6,182,212,0.1);
}
.hero-img-bg2 {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 1px solid rgba(6,182,212,0.3);
  transform: rotate(-3deg) scale(1.1);
  z-index: 0;
  opacity: 0.5;
}
.hero-img {
  position: relative; z-index: 1;
  width: 240px; height: 280px;
  border-radius: 24px;
  object-fit: cover;
  object-position: center 25%;
  box-shadow: 0 16px 48px rgba(6,182,212,0.3);
  border: 4px solid var(--accent);
  display: block;
  margin: 10px auto 0;
  background: linear-gradient(135deg, #0f1419 0%, #1a3a3a 100%);
}
.hero-badge {
  position: absolute;
  bottom: -14px; right: -14px;
  z-index: 2;
  background: #1a202c;
  border-radius: 16px;
  padding: 10px 16px;
  box-shadow: var(--card-shadow);
  display: flex; align-items: center; gap: 8px;
  font-family: 'DM Sans', sans-serif;
  font-weight: 600; font-size: 0.8rem;
  color: var(--accent);
  white-space: nowrap;
  border: 1px solid var(--border);
}
.hero-badge .dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: #06b6d4;
  animation: pulse-cyan 1.8s ease-in-out infinite;
}
@keyframes pulse-cyan {
  0%, 100% { box-shadow: 0 0 0 0 rgba(6,182,212,0.6); }
  50% { box-shadow: 0 0 0 8px rgba(6,182,212,0); }
}

/* SECTIONS */
.section {
  position: relative; z-index: 1;
  max-width: 1100px; margin: 0 auto;
  padding: 80px 40px;
}
.section-header {
  display: flex; align-items: center; gap: 16px;
  margin-bottom: 50px;
  justify-content: center;
  flex-direction: column;
}
.section-tag {
  font-family: 'DM Sans', sans-serif;
  font-size: 0.78rem; font-weight: 600;
  color: var(--accent);
  text-transform: uppercase; letter-spacing: 0.1em;
  background: rgba(6,182,212,0.1);
  padding: 4px 12px; border-radius: 999px;
  border: 1px solid var(--border);
}
.section-title {
  font-family: 'Syne', sans-serif;
  font-size: clamp(1.7rem, 3vw, 2.3rem);
  font-weight: 800;
  letter-spacing: -0.8px;
  color: var(--accent);
  position: relative;
  display: inline-block;
}
.section-title::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 3px;
  background: var(--accent);
  border-radius: 2px;
}

/* Divider */
.divider {
  max-width: 1100px; margin: 0 auto;
  padding: 0 40px;
}
.divider hr {
  border: none;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--border), transparent);
}

/* EDUCATION */
.edu-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}
.edu-card {
  background: var(--surface);
  border: 1.5px solid var(--border);
  border-radius: 20px;
  padding: 28px;
  backdrop-filter: blur(12px);
  box-shadow: var(--card-shadow);
  transition: all .3s;
  text-decoration: none;
  color: inherit;
  display: block;
  position: relative;
  overflow: hidden;
}
.edu-card::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(to right, var(--accent), var(--accent2));
  border-radius: 3px 3px 0 0;
  opacity: 0;
  transition: opacity .3s;
}
.edu-card:hover { 
  transform: translateY(-6px); 
  box-shadow: var(--card-shadow-hover);
  border-color: var(--accent);
}
.edu-card:hover::before { opacity: 1; }
.edu-icon { font-size: 2rem; margin-bottom: 14px; }
.edu-title {
  font-family: 'Syne', sans-serif;
  font-weight: 700; font-size: 1.05rem;
  color: var(--text); margin-bottom: 6px;
}
.edu-sub {
  font-size: 0.88rem; color: var(--muted);
  margin-bottom: 10px;
}
.edu-gpa {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 0.82rem; font-weight: 600;
  color: var(--accent);
  background: rgba(6,182,212,0.1);
  padding: 4px 10px; border-radius: 999px;
  border: 1px solid var(--border);
}
.edu-loc {
  font-size: 0.82rem; color: var(--muted2);
  margin-top: 8px;
  display: flex; align-items: center; gap: 4px;
}

/* PROJECTS */
.proj-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 28px;
}
.proj-card {
  background: var(--surface);
  border: 1.5px solid var(--border);
  border-radius: 24px;
  overflow: hidden;
  box-shadow: var(--card-shadow);
  transition: all .3s;
  display: flex; flex-direction: column;
}
.proj-card:hover { 
  transform: translateY(-8px); 
  box-shadow: var(--card-shadow-hover);
  border-color: var(--accent);
}

.proj-img-wrap {
  width: 100%; height: 200px;
  background: linear-gradient(135deg, #1a3a3a 0%, #0f2a2a 100%);
  display: flex; align-items: center; justify-content: center;
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--border);
}
.proj-img-wrap::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: 
    radial-gradient(circle at 20% 50%, rgba(6,182,212,0.15) 0%, transparent 40%),
    radial-gradient(circle at 80% 80%, rgba(6,182,212,0.1) 0%, transparent 40%);
  pointer-events: none;
}
.proj-img-wrap img {
  width: 100%; height: 100%;
  object-fit: cover;
  position: relative;
  z-index: 1;
}
.proj-img-placeholder {
  font-size: 3.5rem;
  opacity: 0.25;
  position: relative;
  z-index: 1;
  color: var(--accent);
}
.proj-img-upload-note {
  position: absolute; bottom: 8px; right: 10px;
  font-size: 0.7rem; color: rgba(6,182,212,0.4);
  font-style: italic;
  z-index: 2;
}
.proj-body { padding: 24px; flex: 1; display: flex; flex-direction: column; }
.proj-tags {
  display: flex; flex-wrap: wrap; gap: 6px;
  margin-bottom: 14px;
}
.proj-tag {
  font-size: 0.72rem; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.06em;
  padding: 3px 10px; border-radius: 999px;
  background: rgba(6,182,212,0.1);
  color: var(--accent);
  border: 1px solid var(--border);
}
.proj-title {
  font-family: 'Syne', sans-serif;
  font-weight: 700; font-size: 1.15rem;
  color: var(--accent); margin-bottom: 10px;
  line-height: 1.3;
}
.proj-desc {
  font-size: 0.9rem; color: var(--muted);
  margin-bottom: 16px; line-height: 1.65; flex: 1;
}
.proj-features {
  margin-bottom: 20px;
}
.proj-features li {
  font-size: 0.85rem; color: var(--muted);
  margin-bottom: 5px;
  padding-left: 16px;
  position: relative;
  list-style: none;
}
.proj-features li::before {
  content: '→';
  position: absolute; left: 0;
  color: var(--accent);
  font-size: 0.78rem;
}
.proj-links {
  display: flex; gap: 10px; flex-wrap: wrap;
}
.proj-link {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 8px 18px; border-radius: 999px;
  font-size: 0.83rem; font-weight: 600;
  text-decoration: none; transition: all .2s;
  border: 1.5px solid;
}
.proj-link-code {
  background: transparent;
  color: var(--accent);
  border-color: var(--accent);
}
.proj-link-code:hover { 
  background: var(--accent);
  color: #0f1419;
}
.proj-link-secondary {
  background: transparent;
  color: var(--accent);
  border-color: var(--accent);
}
.proj-link-secondary:hover { 
  background: var(--accent);
  color: #0f1419;
}

/* SKILLS */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
}
.skill-card {
  background: var(--surface);
  border: 1.5px solid var(--border);
  border-radius: 20px;
  padding: 24px;
  backdrop-filter: blur(12px);
  box-shadow: var(--card-shadow);
  transition: all .3s;
  text-align: center;
}
.skill-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--card-shadow-hover);
  border-color: var(--accent);
}
.skill-icon {
  font-size: 2.5rem;
  margin-bottom: 12px;
  color: var(--accent);
}
.skill-name {
  font-family: 'Syne', sans-serif;
  font-weight: 700;
  font-size: 1rem;
  color: var(--text);
  margin-bottom: 6px;
}
.skill-level {
  font-size: 0.8rem;
  color: var(--muted);
}

/* CONTACT */
.contact-wrap {
  background: var(--surface);
  border: 1.5px solid var(--border);
  border-radius: 28px;
  padding: 56px 40px;
  backdrop-filter: blur(12px);
  box-shadow: var(--card-shadow);
  text-align: center;
  position: relative;
  overflow: hidden;
}
.contact-wrap::before {
  content: '';
  position: absolute; top: -80px; right: -80px;
  width: 260px; height: 260px; border-radius: 50%;
  background: radial-gradient(circle, rgba(6,182,212,0.2) 0%, transparent 70%);
}
.contact-title {
  font-family: 'Syne', sans-serif;
  font-size: 2rem; font-weight: 800;
  color: var(--accent); margin-bottom: 12px;
  letter-spacing: -0.5px;
}
.contact-sub { color: var(--muted); font-size: 1rem; margin-bottom: 32px; }

/* FOOTER */
footer {
  position: relative; z-index: 1;
  text-align: center;
  padding: 32px 40px;
  color: var(--muted2);
  font-size: 0.85rem;
  border-top: 1px solid var(--border);
}

/* GREETING BAR */
#greetingBar {
  background: rgba(6,182,212,0.1);
  border-bottom: 1px solid var(--border);
  text-align: center;
  padding: 8px 20px;
  font-size: 0.85rem;
  color: var(--accent);
  font-weight: 500;
  letter-spacing: 0.02em;
  border: 1px solid var(--border);
}

/* Scroll animations */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}
/* Fallback - always show content after 1s even if observer fails */
.reveal { animation: fallbackShow 0s 1s forwards; }
@keyframes fallbackShow { to { opacity: 1; transform: translateY(0); } }

@media (max-width: 768px) {
  .hero { flex-direction: column-reverse; gap: 36px; padding: 50px 20px 40px; text-align: center; }
  .hero-greeting { justify-content: center; }
  .hero-desc { margin: 0 auto 28px; }
  .hero-buttons { justify-content: center; }
  .hero-img-wrap { width: 200px; height: 230px; }
  .hero-img { width: 185px; height: 215px; }
  nav { padding: 0 20px; }
  .nav-links { gap: 18px; }
  .nav-links a { font-size: 0.8rem; }
  .section { padding: 50px 20px; }
  .section-header { flex-direction: column; }
}