@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=Space+Grotesk:wght@500;700&display=swap');

:root {
  --primary:#38bdf8;
  --secondary:#eab308;
  --bg:#050816;
  --card:rgba(255,255,255,0.08);
  --text:#f8fafc;
  --muted:#94a3b8;
  --border:rgba(255,255,255,0.12);
  --radius:20px;
  --transition:0.3s ease;
}

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

body {
  font-family:"Inter",sans-serif;
  background:var(--bg);
  color:var(--text);
  line-height:1.7;
  overflow-x:hidden;
}

/* Particle canvas */
#particles {
  position:fixed;
  top:0; left:0;
  width:100%; height:100%;
  z-index:-1;
}

/* Navbar */
.navbar {
  position: fixed;
  top: 20px;
  left: 50%;
  transform: translateX(-50%);
  width: 90%;
  max-width: 1200px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 2rem;
  background: var(--card);
  backdrop-filter: blur(20px);
  border: 1px solid var(--border);
  border-radius: 16px;
  z-index: 1000;
}

/* Logo */
.logo {
  font-family: "Space Grotesk";
  font-size: 1.8rem;
  font-weight: 700;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Nav Links */
.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
}

.nav-links a {
  color: var(--text);
  text-decoration: none;
  font-weight: 500;
  position: relative;
  transition: color 0.3s ease;
}

.nav-links a::after {
  content: "";
  position: absolute;
  bottom: -6px;
  left: 0;
  width: 0%;
  height: 2px;
  background: var(--primary);
  transition: width 0.3s ease;
}

.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}

.nav-links a.active {
  color: var(--primary);
  font-weight: 600;
}

/* Nav Buttons */
.nav-buttons {
  display: flex;
  gap: 1rem;
}

.theme-toggle,
#menu-btn {
  background: transparent;
  border: none;
  font-size: 1.4rem;
  color: var(--text);
  cursor: pointer;
  transition: transform 0.3s ease, color 0.3s ease;
}

.theme-toggle:hover {
  transform: rotate(20deg);
  color: var(--primary);
}

#menu-btn:hover {
  transform: scale(1.2);
}

/* Theme toggle animation */
.theme-toggle i.fade {
  opacity: 0;
  transform: rotate(180deg);
  transition: opacity 0.2s ease, transform 0.2s ease;
}
.theme-toggle i {
  transition: opacity 0.2s ease, transform 0.2s ease;
}

/* Light Mode Overrides */
body.light-mode {
  --primary: #0284c7;
  --secondary: #ca8a04;
  --bg: #f8fafc;
  --card: rgba(0, 0, 0, 0.05);
  --text: #0f172a;
  --muted: #475569;
  --border: rgba(0,0,0,0.15);
}

body.light-mode {
  background: var(--bg);
  color: var(--text);
}

body.light-mode .navbar {
  background: rgba(255,255,255,0.75);
  border: 1px solid rgba(0,0,0,0.1);
}

body.light-mode .nav-links a {
  color: var(--text);
}

body.light-mode .nav-links a.active {
  color: var(--secondary);
}

body.light-mode .theme-toggle,
body.light-mode #menu-btn {
  color: var(--text);
}

body.light-mode .secondary {
  color: var(--text);
}

body.light-mode footer {
  background: #e2e8f0;
  color: #475569;
}

body.light-mode #particles {
  opacity: 0.2;
}

/* Mobile menu */
@media(max-width:768px){
  .nav-links {
    position: absolute;
    top: 80px;
    left: 0;
    width: 100%;
    background: var(--card);
    flex-direction: column;
    text-align: center;
    padding: 2rem;
    display: none;
    border-radius: 0 0 16px 16px;
  }
  .nav-links.show { display: flex; }
  #menu-btn { display: block; }
}

/* Hero */
.hero {
  min-height:100vh;
  display:flex;
  justify-content:center;
  align-items:center;
  text-align:center;
  padding:100px 20px;
}
.hero-content { max-width:850px; }

.profile-wrapper {
  display:inline-block;
  padding:8px;
  border-radius:50%;
  background:linear-gradient(45deg,var(--primary),var(--secondary));
}
.profile-img {
  width:220px; height:220px;
  border-radius:50%;
  object-fit:cover;
  border:5px solid var(--bg);
}
.hero h1 {
  font-family:"Space Grotesk";
  font-size:3.5rem;
  margin-top:2rem;
}
#typing-text {
  color:var(--primary);
  font-size:1.7rem;
  min-height:50px;
}
.hero p {
  max-width:650px;
  margin:1.5rem auto;
  color:var(--muted);
  font-size:1.1rem;
}

/* Buttons */
.btn {
  display:inline-block;
  padding:14px 35px;
  border-radius:50px;
  text-decoration:none;
  font-weight:600;
  margin:10px;
  transition:all var(--transition);
}
.primary { background:var(--primary); color:#001018; }
.secondary { border:2px solid var(--primary); color:white; }
.btn:hover { transform:translateY(-5px); }

/* Social */
.social-links { margin-top:2rem; }
.social-links a {
  font-size:1.8rem;
  color:var(--primary);
  margin:0 12px;
  transition:color var(--transition);
}
.social-links a:hover { color:var(--secondary); }

/* Sections */
.section {
  max-width:1100px;
  margin:auto;
  padding:100px 30px;
}
.section h2 {
  text-align:center;
  font-family:"Space Grotesk";
  font-size:2.7rem;
  margin-bottom:3rem;
  color:var(--primary);
}

/* Glass Cards */
.glass-card, .project-card {
  background:var(--card);
  border:1px solid var(--border);
  backdrop-filter:blur(15px);
  border-radius:var(--radius);
  padding:2rem;
  transition:transform .4s, border-color .4s;
}
.glass-card:hover, .project-card:hover {
  transform:translateY(-8px);
  border-color:var(--primary);
}
.glass-card i {
  font-size:2rem;
  color:var(--primary);
  margin-bottom:1rem;
}
.glass-card ul { list-style:none; }
.glass-card li { margin:.5rem 0; color:var(--muted); }

/* Cards Grid */
.cards {
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(280px,1fr));
  gap:2rem;
}

/* Timeline */
.timeline {
  border-left:3px solid var(--primary);
  padding-left:30px;
}
.timeline-item {
  margin-bottom:40px;
  position:relative;
}
.timeline-item::before {
  content:"";
  position:absolute;
  left:-42px; top:5px;
  width:18px; height:18px;
  background:var(--secondary);
  border-radius:50%;
}
.timeline-item h3 { color:var(--primary); }

/* Projects */
.projects-grid {
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(300px,1fr));
  gap:2rem;
}
.project-card img.project-img {
  width: 100%;
  max-width: 400px;
  border-radius: 12px;
  margin-bottom: 1rem;
  border: 2px dashed var(--border);
  object-fit: cover;
}

/* Contact */
.contact-box {
  text-align:center;
  background:var(--card);
  padding:3rem;
  border-radius:var(--radius);
  border:1px solid var(--border);
  backdrop-filter:blur(15px);
  transition:transform .4s, border-color .4s;
}
.contact-box:hover {
  transform:translateY(-8px);
  border-color:var(--primary);
}
.contact-box i {
  font-size:1.5rem;
  color:var(--primary);
  margin-right:8px;
}
.contact-box a {
  color:var(--primary);
  text-decoration:none;
  transition:color var(--transition);
}
.contact-box a:hover { color:var(--secondary); }