/* 🌐 Base Reset & Typography */
* {
  scroll-behavior: smooth;
  transition: all 0.3s ease-in-out;
  box-sizing: border-box;
}
html {
  scroll-padding-top: 100px; /* adjust if your navbar is taller/shorter */
}

body {
  font-family: 'Segoe UI', sans-serif;
  margin: 0;
  padding: 0;
  background: linear-gradient(to right, #050505, #101010, #0f2027);
  color: #f0f0f0;
}

/* ✅ Hero Fixes */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 60px 20px;
  color: #fff;
  text-align: left;
  position: relative;
  background: radial-gradient(ellipse at top, #0a0a0a, #000000);
  z-index: 1;
}

.hero::after {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background-color: transparent;
  z-index: -1;
}

.hero-text {
  max-width: 700px;
  padding: 20px;
  z-index: 2;
}

.hero h1 {
  font-size: 4rem;
  font-weight: 800;
  color: #00ffff;
  text-shadow: 0 0 6px #00ffff, 0 0 12px #00ffff, 0 0 20px #00ffff;
  margin-bottom: 10px;
  letter-spacing: 2px;
}

.hero h2 {
  font-size: 1.8rem;
  font-weight: 400;
  margin-bottom: 20px;
  color: #77ffff;
  text-shadow: 0 0 5px #00ffff;
}

.hero p {
  font-size: 1.1rem;
  margin-bottom: 30px;
  color: #99ffff;
  text-shadow: 0 0 4px #00ffff;
  line-height: 1.6;
}

/* 👇 "About Me" Button */
a.neon-btn {
  display: inline-block;
  padding: 14px 24px;
  font-size: 1rem;
  font-weight: bold;
  border: none;
  border-radius: 30px;
  background-color: #00ffff;
  color: #000;
  text-decoration: none;
  box-shadow: 0 0 12px rgba(0, 255, 255, 0.6);
  transition: 0.3s ease-in-out;
}

a.neon-btn:hover {
  background-color: #00cccc;
  color: #fff;
  transform: scale(1.05);
}

/* 🔐 Hacker Code Background */
.code-background {
  position: fixed;
  top: 0; left: 0;
  width: 100%;
  height: 100%;
  font-family: 'Courier New', monospace;
  font-size: 0.9rem;
  color: #3bff0555;
  white-space: pre-wrap;
  pointer-events: none;
  z-index: 0;
  padding: 60px;
  opacity: 0.06;
  user-select: none;
  animation: floatText 30s linear infinite;
}

@keyframes floatText {
  0% { transform: translateY(0px) translateX(0px); }
  50% { transform: translateY(-20px) translateX(10px); }
  100% { transform: translateY(0px) translateX(0px); }
}

/* 🧭 Navbar */
nav {
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(6px);
  padding: 12px 0;
  position: sticky;
  top: 0;
  z-index: 100;
}

nav ul {
  display: flex;
  justify-content: center;
  gap: 25px;
  list-style: none;
  margin: 0;
  padding: 0;
}

nav {
  position: relative;
  overflow: hidden; /* hide the overflow from the glowing line */
}

nav::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: -100%;
  width: 200%;
  height: 3px;
  background: linear-gradient(
    90deg,
    transparent,
    #00ffff,
    #00ffff,
    transparent
  );
  animation: neon-scan 3s linear infinite;
  opacity: 0.8;
  filter: drop-shadow(0 0 6px #00ffff) drop-shadow(0 0 12px #00ffff);
}
nav ul li a {
  color: #cfffff;
  font-weight: bold;
  padding: 10px 16px;
  border-radius: 6px;
  text-decoration: none;
  position: relative;
  transition: all 0.3s ease;
}
nav ul li a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 2px;
  width: 100%;
  height: 2px;
  background: #00ffff;
  opacity: 0;
  transition: opacity 0.3s ease;
  box-shadow: 0 0 6px #00ffff;
}

nav ul li a:hover::after {
  opacity: 1;
}

@keyframes neon-scan {
  0% {
    left: -100%;
  }
  100% {
    left: 100%;
  }
}


nav ul li a:hover {
  color: #00ffff;
}

/* 📦 Sections */
section:not(.hero) {
  padding: 30px;
  margin: 30px auto;
  border-bottom: 1px solid rgba(0, 255, 255, 0.1);
  background-color: rgba(0, 0, 0, 0.3);
  border-radius: 10px;
  max-width: 900px;
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
  box-shadow: 0 0 10px rgba(0, 255, 255, 0.1);
}

section.show {
  opacity: 1;
  transform: translateY(0);
}

/* 🎨 Text Highlighting */
.highlight {
  color: #00ffff;
  text-shadow: 0 0 10px #00ffff;
  font-weight: bold;
}

/* ✉️ Contact Form */
form {
  background-color: rgba(255, 255, 255, 0.1);
  padding: 20px;
  border-radius: 8px;
  box-shadow: 0 0 10px rgba(0,255,255,0.3);
  margin-top: 20px;
  display: flex;
  flex-direction: column;
  max-width: 500px;
}

input, textarea {
  background-color: rgba(255, 255, 255, 0.2);
  color: #fff;
  border: none;
  border-radius: 5px;
  padding: 10px;
  margin: 10px 0;
  font-size: 16px;
}

input:focus, textarea:focus {
  outline: none;
  box-shadow: 0 0 8px #00ffff;
  border: 1px solid #00ffff;
}

/* 🧮 Buttons */
button {
  background-color: #00ffff;
  color: #000;
  border-radius: 5px;
  font-weight: bold;
  font-size: 1rem;
  padding: 12px 16px;
  cursor: pointer;
  border: none;
  transition: 0.3s ease;
}

button:hover {
  background-color: #00cccc;
  color: #fff;
  transform: scale(1.05);
}

/* 🌘 Theme Toggle */
#theme-toggle {
  position: fixed;
  top: 15px;
  right: 15px;
  z-index: 999;
  padding: 10px 14px;
  background-color: #00ffff;
  color: #000;
  border-radius: 50px;
  font-weight: bold;
  box-shadow: 0 0 10px rgba(0,255,255,0.4);
  border: none;
  transition: 0.3s;
}

#theme-toggle:hover {
  background-color: #00cccc;
  color: #fff;
  transform: scale(1.05);
}

/* 🌚 Dark Mode */
body.dark {
  background-color: #000;
  color: #00ffff;
}

body.dark nav { background-color: #111; }

body.dark h1, body.dark h2, body.dark p {
  text-shadow: 0 0 10px #00ffff;
}

body.dark input,
body.dark textarea {
  background-color: #111;
  color: #00ffff;
  border: 1px solid #00ffff;
}

body.dark button {
  background-color: #444;
  color: #00ffff;
}

body.dark button:hover {
  background-color: #00cccc;
  color: #000;
}

/* 📱 Responsive Design */
@media (max-width: 768px) {
  nav ul {
    flex-direction: column;
    gap: 10px;
  }

  .hero {
    text-align: center;
    padding: 40px 15px;
  }

  .hero h1 {
    font-size: 2.5rem;
  }

  .hero h2 {
    font-size: 1.3rem;
  }

  .hero p {
    font-size: 1rem;
  }

  a.neon-btn {
    font-size: 0.9rem;
    padding: 10px 18px;
  }
}

.logo {
  position: absolute;
  top: 15px;
  left: 20px;
  font-size: 1.5rem;
  font-weight: 800;
  color: #00ffff;
  text-shadow: 0 0 6px #00ffff;
  z-index: 999;
  font-family: 'Poppins', sans-serif;
}
.social-icons {
  margin-top: 30px;
  display: flex;
  gap: 20px;
}

.social-icons img {
  width: 28px;
  height: 28px;
  filter: invert(100%) drop-shadow(0 0 3px #00ffff);
  transition: transform 0.3s ease;
}

.social-icons img:hover {
  transform: scale(1.2);
  filter: invert(100%) drop-shadow(0 0 6px #00ffff);
}
.logo {
  position: fixed;
  top: 15px;
  left: 20px;
  z-index: 1001;
}

.logo img {
  height: 40px;
  width: auto;
  filter: drop-shadow(0 0 6px #00ffff); /* optional neon glow */
  transition: transform 0.3s ease;
}

.logo img:hover {
  transform: scale(1.05);
}
.code-background {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  font-family: 'Courier New', monospace;
  font-size: 0.95rem;
  color: #00ffff33;
  white-space: pre-wrap;
  pointer-events: none;
  z-index: 0;
  padding: 100px 40px;
  opacity: 0.08;
  animation: floatText 30s ease-in-out infinite alternate;
  user-select: none;
}

@keyframes floatText {
  0% {
    transform: translateY(0px) translateX(0px);
  }
  50% {
    transform: translateY(-40px) translateX(20px);
  }
  100% {
    transform: translateY(0px) translateX(0px);
  }
}
body.light .code-background {
  color: rgba(0, 0, 0, 0.12);
}

body.dark .code-background {
  color: rgba(0, 255, 255, 0.12);
}
/* 🌫️ Cyber Gray Light Mode — Soft and Eye-Friendly */
body.light {
  background: #1e2228;  /* almost dark slate gray */
  color: #e0f0f5;
}


body.light nav {
  background: rgba(50, 55, 60, 0.8);
  backdrop-filter: blur(12px);
  box-shadow: 0 2px 6px rgba(0, 213, 255, 0.1);
}

body.light nav ul li a {
  color: #cfd8dc;
  transition: color 0.3s ease;
}

body.light nav ul li a:hover {
  color: #00e0ff;
  text-shadow: 0 0 4px #00f7ff;
}

body.light .hero {
  background: linear-gradient(to bottom, #2f3338, #3b4046); /* darker steel gray */
  box-shadow: inset 0 0 40px rgba(0, 213, 255, 0.05);
  color: #e0f7fa;
  border-bottom: 1px solid rgba(0, 212, 255, 0.1);
}

body.light .hero h1 {
  color: #00e0ff;
  text-shadow: 0 0 8px rgba(0, 212, 255, 0.3);
}

body.light .hero h2 {
  color: #6bd3e0;
}

body.light .hero p {
  color: #c2d4db;
}


body.light a.neon-btn {
  background-color: #0097a7;
  color: #fff;
  box-shadow: 0 0 10px rgba(0, 212, 255, 0.3);
}

body.light a.neon-btn:hover {
  background-color: #007887;
  transform: scale(1.05);
  box-shadow: 0 0 15px rgba(0, 212, 255, 0.4);
}


body.light section:not(.hero) {
  background-color: #384048;
  border: 1px solid #00cde4;
  box-shadow: 0 0 8px rgba(0, 213, 255, 0.08);
  color: #e0f0f5;
}

body.light .highlight {
  color: #00e0ff;
  font-weight: bold;
  text-shadow: 0 0 4px rgba(0, 212, 255, 0.4);
}

body.light form {
  background-color: #2f363d;
  box-shadow: 0 0 10px rgba(0,0,0,0.1);
}

body.light input,
body.light textarea {
  background-color: #3a434c;
  color: #f1f1f1;
  border: 1px solid #00bcd4;
}

body.light input:focus,
body.light textarea:focus {
  border-color: #00e0ff;
  box-shadow: 0 0 6px #00e0ff;
}

body.light button {
  background-color: #00cde4;
  color: #fff;
  box-shadow: 0 0 8px rgba(0, 213, 255, 0.3);
  transition: all 0.3s ease;
}

body.light button:hover {
  background-color: #0097a7;
  transform: scale(1.05);
  box-shadow: 0 0 12px rgba(0, 213, 255, 0.5);
}

body.light .social-icons img {
  filter: brightness(0) invert(1) drop-shadow(0 0 4px #00faff);
  transition: transform 0.3s ease;
}

body.light .social-icons img:hover {
  transform: scale(1.2);
}

body.light #theme-toggle:hover {
  background-color: #00e0ff;
  color: #111;
  transform: scale(1.05);
  box-shadow: 0 0 10px rgba(0, 213, 255, 0.5);
}

body.light .code-background {
  color: rgba(255, 255, 255, 0.07);
}




.floating-symbols {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.floating-symbols span {
  position: absolute;
  font-size: 2rem;
  color: rgba(0, 255, 255, 0.05);
  animation: floatSymbols 12s linear infinite;
  font-family: 'Courier New', monospace;
}

/* Different positions */
.floating-symbols span:nth-child(1) { top: 20%; left: 10%; animation-delay: 0s; }
.floating-symbols span:nth-child(2) { top: 50%; left: 80%; animation-delay: 2s; }
.floating-symbols span:nth-child(3) { top: 75%; left: 30%; animation-delay: 4s; }

@keyframes floatSymbols {
  0%   { transform: translateY(0) rotate(0deg); }
  50%  { transform: translateY(-20px) rotate(180deg); }
  100% { transform: translateY(0) rotate(360deg); }
}
body.light button:hover {
  background-color: #00bcd4;
  box-shadow: 0 0 15px #00e0ff;
  color: #fff;
}

/* ✨ Floating Animated Symbols */
.floating-symbols {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  pointer-events: none;
}

.floating-symbols span {
  position: absolute;
  font-size: 2rem;
  font-family: 'Courier New', monospace;
  color: rgba(0, 255, 255, 0.07);
  animation: floatUp linear infinite;
  animation-duration: calc(12s + (var(--i) * 2s));
  left: calc(var(--i) * 10%);
  top: 100%;
}

@keyframes floatUp {
  0% {
    transform: translateY(0) scale(1);
    opacity: 0.15;
  }
  100% {
    transform: translateY(-120vh) scale(1.3);
    opacity: 0;
  }
}

/* Different speeds and positions */
.floating-symbols span:nth-child(1) { --i: 1; }
.floating-symbols span:nth-child(2) { --i: 2; }
.floating-symbols span:nth-child(3) { --i: 3; }
.floating-symbols span:nth-child(4) { --i: 4; }
.floating-symbols span:nth-child(5) { --i: 5; }
.floating-symbols span:nth-child(6) { --i: 6; }
.floating-symbols span:nth-child(7) { --i: 7; }
.floating-symbols span:nth-child(8) { --i: 8; }
.floating-symbols span:nth-child(9) { --i: 9; }
body.light {
  background: linear-gradient(to right, #2a2f33, #3c444b);
  color: #e0f7fa;
}








body.light .hero p {
  color: #d0e8f2;
  text-shadow: 0 0 4px rgba(0, 213, 255, 0.1);
}



body.light .highlight {
  color: #00c8e8;
  font-weight: bold;
  text-shadow: 0 0 4px #00e0ff66;
}
.logo img:hover {
  transform: scale(1.05);
  filter: drop-shadow(0 0 10px #00ffff);
}
.logo img:hover {
  transform: rotate(-10deg) scale(1.1);
}
@keyframes flicker {
  0%, 100% { opacity: 1; }
  45% { opacity: 0.4; }
  55% { opacity: 0.9; }
  70% { opacity: 0.3; }
}

.logo img:hover {
  animation: flicker 0.4s linear infinite alternate;
}
.logo img:hover {
  transform: scale(1.05);
  filter: drop-shadow(0 0 10px #00ffff);
  animation: flicker 0.4s linear infinite alternate;
}

.skills-section {
  padding: 4rem 2rem;
  background: var(--bg); /* neon background */
  color: var(--text);
}

.section-heading {
  text-align: center;
  font-size: 2.5rem;
  color: #00ffff;
  text-shadow: 0 0 5px #00ffff, 0 0 10px #00ffff, 0 0 20px #00ffff;
  margin-bottom: 3rem;
}

.skills-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.skill-box {
  background: rgba(0, 255, 255, 0.08);
  border: 1px solid #00ffff55;
  padding: 1.5rem;
  border-radius: 20px;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  box-shadow: 0 0 12px #00ffff22;
}

.skill-box:hover {
  transform: translateY(-6px);
  box-shadow: 0 0 20px #00ffff88, 0 0 30px #00ffff44;
}

.skill-box h3 {
  font-size: 1.2rem;
  margin-bottom: 1rem;
  color: #00ffff;
  text-shadow: 0 0 4px #00ffff, 0 0 8px #00ffffaa;
}

.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.skill-tags span {
  background: rgba(0, 255, 255, 0.12);
  border: 1px solid #00ffff88;
  color: #00ffff;
  padding: 0.45rem 0.9rem;
  font-size: 0.9rem;
  font-weight: 500;
  border-radius: 20px;
  text-shadow: 0 0 6px #00ffff;
  box-shadow: 0 0 8px #00ffff33;
  transition: background 0.3s, color 0.3s, box-shadow 0.3s;
}

.skill-tags span:hover {
  background: #00ffff;
  color: #000;
  cursor: default;
  box-shadow: 0 0 10px #00ffff, 0 0 20px #00ffff88;
}
.internships-section {
  padding: 4rem 2rem;
  background: var(--bg);
  color: var(--text);
}

.timeline {
  position: relative;
  margin: 0 auto;
  padding-left: 2rem;
  border-left: 3px solid #00ffff88;
  max-width: 800px;
}

.timeline-item {
  position: relative;
  margin-bottom: 3rem;
  padding-left: 1.5rem;
  transition: transform 0.3s ease;
}

.timeline-item:hover {
  transform: translateX(6px);
}

.timeline-dot {
  position: absolute;
  left: -12px;
  top: 4px;
  width: 14px;
  height: 14px;
  background: #00ffff;
  border-radius: 50%;
  box-shadow: 0 0 10px #00ffff88, 0 0 20px #00ffff66;
  animation: pulse 2s infinite ease-in-out;
}

.timeline-content {
  background: rgba(0, 255, 255, 0.07);
  border: 1px solid #00ffff55;
  border-radius: 16px;
  padding: 1rem 1.5rem;
  backdrop-filter: blur(6px);
  box-shadow: 0 0 8px #00ffff22;
}

.timeline-content h3 {
  font-size: 1.3rem;
  color: #00ffff;
  margin-bottom: 0.3rem;
  text-shadow: 0 0 5px #00ffff;
}

.timeline-content .position {
  font-weight: 500;
  font-size: 1rem;
  color: var(--text);
  margin-bottom: 0.3rem;
}

.timeline-content .date {
  font-size: 0.9rem;
  color: #aaa;
  text-shadow: 0 0 4px #00ffff33;
}

/* Pulse animation for glowing dots */
@keyframes pulse {
  0%, 100% {
    box-shadow: 0 0 8px #00ffff, 0 0 12px #00ffff;
  }
  50% {
    box-shadow: 0 0 14px #00ffffaa, 0 0 20px #00ffff66;
  }
}
.about-section {
  background: rgba(0, 0, 0, 0.5);
  padding: 2.5rem;
  margin-bottom: 2rem;
  border-radius: 16px;
  box-shadow: 0 0 25px rgba(0, 255, 255, 0.2);
  backdrop-filter: blur(6px);
  border: 1px solid rgba(0, 255, 255, 0.2);
  transition: all 0.3s ease;
}

.about-section:hover {
  box-shadow: 0 0 35px rgba(0, 255, 255, 0.4);
}

.about-section h2 {
  font-size: 2.2rem;
  color: #00ffff;
  text-shadow: 0 0 8px #00ffff;
  margin-bottom: 1.5rem;
}

.about-section p {
  font-size: 1.1rem;
  line-height: 1.8;
  color: #dff;
  margin-bottom: 1rem;
  text-shadow: 0 0 4px rgba(0, 255, 255, 0.4);
}
.certifications-section {
  padding: 4rem 2rem;
  background: var(--bg);
  color: var(--text);
}

.certifications-section h2 {
  text-align: center;
  font-size: 2.5rem;
  color: #00ffff;
  text-shadow: 0 0 5px #00ffff, 0 0 10px #00ffff;
  margin-bottom: 3rem;
}

.certification-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  max-width: 1000px;
  margin: 0 auto;
}

.cert-card {
  background: rgba(0, 255, 255, 0.05);
  border: 1px solid #00ffff55;
  padding: 1.5rem;
  border-radius: 16px;
  box-shadow: 0 0 12px #00ffff33;
  transition: transform 0.4s ease, box-shadow 0.4s ease;
  position: relative;
  overflow: hidden;
}

.cert-card::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(0, 255, 255, 0.15), transparent 70%);
  animation: pulseGlowCert 3s infinite;
  z-index: 0;
}

.cert-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 0 20px #00ffffaa;
}

.cert-card h3 {
  position: relative;
  font-size: 1.2rem;
  color: #00ffff;
  text-shadow: 0 0 3px #00ffff;
  z-index: 1;
}

.cert-card p {
  position: relative;
  font-size: 0.95rem;
  color: #e0f7ff;
  margin-top: 0.5rem;
  z-index: 1;
}

@keyframes pulseGlowCert {
  0%, 100% { transform: scale(1); opacity: 0.6; }
  50% { transform: scale(1.2); opacity: 0.2; }
}