/* Smooth scroll behavior for browsers that support CSS scrolling */
html {
  scroll-behavior: smooth;
}

/* Base Reset and Fonts */
body {
  background: #fff;
  color: #232323;
  font-family: 'Inter', 'Montserrat', Arial, sans-serif;
  margin: 0;
  transition: background 0.3s, color 0.3s, border 0.3s;
}

/* Navigation */
header {
  position: relative;
  width: 100%;
  height: 20px;
  background: transparent;
  transition: background-color 0.3s ease, box-shadow 0.3s ease, padding 0.3s ease;
  z-index: 999; /* ensure it stays on top */
  padding: 2em 2em 1.2em 2em; /* initial padding */
}

/* Sticky header styles applied when scrolled */
header.sticky {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: #fff; /* or your desired solid background */
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
  padding: 1em 2em; /* reduced padding to make it compact */
  transition: background-color 0.3s ease, box-shadow 0.3s ease, padding 0.3s ease;
}

nav ul li a,
.logo {
  transition: color 0.3s ease;
}

/* Change color on sticky */
header.sticky nav ul li a {
  color: #4460aa;
}

header.sticky .logo {
  color: #4460aa;
}


nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 2em 2em 1.2em 2em;
  background: #fff;
  gap: 2em;
  flex-wrap: wrap;
}
.logo {
  font-size: 2.4em;
  font-weight: bold;
  letter-spacing: 2px;
}
nav ul {
  display: flex;
  gap: 2em;
  list-style: none;
  margin: 0;
  padding: 0;
}
nav ul li a {
  position: relative;
  overflow: hidden;
  text-decoration: none;
  color: #333;
  font-size: 1em;
  font-weight: 500;
  letter-spacing: 1px;
  transition: color 0.2s;
}
nav ul li a::after {
  content: "";
  display: block;
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 2px;
  background: #4460aa;
  transform: scaleX(0);
  transition: transform 0.3s cubic-bezier(.22,.68,.5,1.07);
  transform-origin: bottom right;
}
nav ul li a:hover {
  color: #4460aa;
}
nav ul li a:hover::after {
  transform: scaleX(1);
  transform-origin: bottom left;
}
.nav-side {
  display: flex;
  align-items: center;
  gap: 1.2em;
}
.year {
  color: #aaa;
  font-size: 1em;
  margin-left: 1.2em;
}
.cta {
  color: #4460aa;
  padding: 0.4em 1.2em;
  border: 1px solid #4460aa;
  border-radius: 2em;
  text-decoration: none;
  margin-right: 0.5em;
  font-weight: 600;
  font-size: 1em;
  cursor: pointer;
  transition: background 0.2s, color 0.2s, transform 0.2s;
}
.cta:hover {
  background: #232323;
  color: #fff;
  transform: translateY(-2px) scale(1.03);
  box-shadow: 0 4px 20px rgba(68,96,170,.08);
  border-color: #232323;
}

/* Hero Section */

.hero-content .bio {
  margin: 1.2em 0 2em 0;
  color: #666;
  font-size: 1.15em;
  line-height: 1.4;
}

.hero-cta {
  background: #4460aa;
  color: #fff;
  border: none;
  padding: 0.75em 2.2em;
  border-radius: 2em;
  font-size: 1.15em;
  font-weight: 600;
  margin-right: 16px;
  transition: background 0.3s, box-shadow 0.3s, transform 0.2s;
  box-shadow: 0 6px 20px rgba(68,96,170,0.10);
  display: inline-block;
  margin-bottom: 1.4em;
}
.hero-cta:hover {
  background: #232323;
  transform: translateY(-3px) scale(1.04);
}

.hero-socials {
  display: flex;
  gap: 1.25em;
  font-size: 1.5em;
}
.hero-socials a {
  color: #4460aa;
  transition: color 0.2s, transform 0.2s;
}
.hero-socials a:hover {
  color: #232323;
  transform: scale(1.12);
}
.profile-animated {
  transition: filter 0.3s, transform 0.3s, box-shadow 0.4s;
  filter: grayscale(25%);
}
.profile-animated:hover {
  filter: grayscale(0);
  transform: scale(1.05);
  box-shadow: 0 8px 32px rgba(68,96,170,0.15);
}

/* Animated stats (use JS for live counting up if desired) */

/* Animated scroll hint */
.animated-bounce {
  animation: bounce 1.4s infinite;
}
@keyframes bounce {
  0%, 100% { transform: translateY(0);}
  50% { transform: translateY(10px);}
}


/* Hero Section Styles old */

.hero {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 4em 2em;
  gap: 4em;
  background: #fafafb;
}
.hero-content {
  flex: 1;
  text-align: left;
  min-width: 320px;
}
.stats {
  display: flex;
  gap: 2.5em;
  margin-bottom: 2em;
}
.stat-num {
  font-size: 2em;
  font-weight: 700;
  color: #232323;
}
.stat-label {
  font-size: 1em;
  color: #999;
  font-weight: 400;
}
.hero h1 {
  font-size: 4.2em;
  font-weight: 700;
  margin-bottom: 0.3em;
}
.tagline {
  color: #777;
  font-size: 1.25em;
  margin-bottom: 2em;
}
.scroll-hint {
  margin-top: 3em;
  font-size: 1em;
  color: #bbb;
}
.hero-image img {
  width: 310px;
  height: 350px;
  object-fit: cover;
  border-radius: 1.2em;
  filter: grayscale(1) contrast(1.1);
  box-shadow: 0 6px 24px rgba(0,0,0,0.10);
  transition: filter 0.2s;
}
.hero-image {
  flex: 1;
  min-width: 320px;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Reveal Animation (for IntersectionObserver) */
.reveal {
  opacity: 0;
  transform: translateY(60px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Section Styling */
section {
  padding: 4em 2em 2em 2em;
  max-width: 1100px;
  margin: 0 auto;
}
h2 {
  font-size: 2.5em;
  font-weight: 700;
  color: #222;
}

/* Portfolio Grid and Cards */
.portfolio-grid {
  display: flex;
  gap: 2em;
  flex-wrap: wrap;
}
/* Project Card Container */
.project-card {
  background: #fff;
  border-radius: 1.2em;
  box-shadow: 0 2px 12px rgba(0,0,0,0.05);
  padding: 1.8em 1.6em;
  flex: 1 1 280px;
  max-width: 320px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  border: 1px solid transparent;
  transition: 
    transform 0.3s cubic-bezier(.19,1,.22,1),
    box-shadow 0.3s ease,
    border-color 0.3s ease,
    background-color 0.3s ease;
  cursor: default;
}

/* Hover & Focus State */
.project-card:hover,
.project-card:focus-within {
  transform: translateY(-10px) scale(1.05);
  box-shadow: 0 16px 40px rgba(68, 96, 170, 0.15),
              0 6px 20px rgba(68, 96, 170, 0.07);
  border-color: #4460aa;
  background-color: #f9fbff;
}

/* Project Card Heading */
.project-card h3 {
  font-size: 1.5em;
  margin-bottom: 0.6em;
  color: #2c3e50;
  font-weight: 700;
  transition: color 0.3s ease;
}

/* Change heading color on hover */
.project-card:hover h3 {
  color: #4460aa;
}

/* Project Description */
.project-card p {
  color: #555555;
  font-size: 1em;
  line-height: 1.5;
  margin-bottom: 1.2em;
  flex-grow: 1;
}

/* "View More" Button */
.project-card button {
  background: #4460aa;
  color: #ffffff;
  border: none;
  border-radius: 2em;
  padding: 0.7em 1.8em;
  font-size: 1em;
  font-weight: 600;
  cursor: pointer;
  align-self: flex-start;
  transition: 
    background-color 0.3s ease,
    box-shadow 0.3s ease,
    transform 0.2s ease;
  box-shadow: 0 4px 14px rgba(68, 96, 170, 0.3);
}

/* Button hover effect */
.project-card button:hover,
.project-card button:focus {
  background-color: #2a4190;
  box-shadow: 0 8px 30px rgba(42, 65, 144, 0.5);
  transform: translateY(-3px) scale(1.05);
  outline: none;
}

/* Optional: Add subtle image thumbnail styling if you add images */
.project-card img {
  width: 100%;
  border-radius: 1em;
  margin-bottom: 1em;
  filter: grayscale(20%);
  transition: filter 0.3s ease, box-shadow 0.3s ease;
  box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

/* Image hover effect */
.project-card:hover img {
  filter: grayscale(0);
  box-shadow: 0 8px 24px rgba(68, 96, 170, 0.15);
}

/* Responsive tweaks for smaller screens */
@media (max-width: 600px) {
  .project-card {
    max-width: 100%;
    padding: 1.2em 1em;
  }
}
/* About Section */

/* About Section Container */
.about-container {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 3em;
  margin-top: 1.5em;
}

/* About Image */
.about-photo {
  flex: 0 0 220px;
  width: 220px;
  height: 280px;
  border-radius: 1.2em;
  object-fit: cover;
  box-shadow: 0 6px 24px rgba(0,0,0,0.10);
  filter: grayscale(20%);
  transition: filter 0.3s ease;
}
.about-photo:hover {
  filter: grayscale(0);
  box-shadow: 0 6px 32px rgba(68,96,170,0.3);
  transform: scale(1.03);
}

/* About Content Text */
.about-content {
  flex: 1 1 400px;
  font-size: 1.125em;
  line-height: 1.6;
  color: #333;
}
.about-content h3 {
  margin: 1.5em 0 0.8em 0;
  font-weight: 700;
  color: #4460aa;
  font-size: 1.5em;
}

/* Skills List */
.skills-list {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  padding: 0;
  margin: 0 0 1.8em 0;
}
.skills-list li {
  background: #f3f3f7;
  border-radius: 2em;
  padding: 0.5em 1.2em;
  font-weight: 600;
  color: #4460aa;
  font-size: 1em;
  cursor: default;
  user-select: none;
  transition: background 0.3s, color 0.3s, transform 0.3s;
}
.skills-list li:hover {
  background: #4460aa;
  color: #fff;
  transform: scale(1.1);
  box-shadow: 0 4px 15px rgba(68, 96, 170, 0.25);
}

/* About Call-to-Action Button */
.about-cta {
  display: inline-block;
  font-weight: 600;
  font-size: 1.1em;
  padding: 0.75em 2em;
  border-radius: 2em;
  background: #4460aa;
  color: #fff;
  text-decoration: none;
  transition: background 0.3s, box-shadow 0.3s;
}
.about-cta:hover {
  background: #232323;
  box-shadow: 0 6px 20px rgba(68,96,170,0.35);
  transform: translateY(-3px) scale(1.05);
}

/* Reveal Animation handled via IntersectionObserver */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Responsive Adjustments */
@media (max-width: 850px) {
  .about-container {
    flex-direction: column;
    text-align: center;
  }
  .about-photo,
  .about-content {
    flex: unset;
    max-width: 320px;
    margin: 0 auto;
  }
  .skills-list {
    justify-content: center;
  }
}


/* Contact Form */
/* Contact Section */
#contact form {
  max-width: 480px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1.3em;
}

#contact label {
  font-weight: 600;
  color: #444;
  margin-bottom: 0.3em;
  user-select: none;
}

#contact input,
#contact textarea {
  border: 1px solid #ddd;
  border-radius: 1em;
  padding: 1em 1.2em;
  font-size: 1em;
  font-family: inherit;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
  resize: none;
}

#contact input:focus,
#contact textarea:focus {
  border-color: #4460aa;
  outline: none;
  box-shadow: 0 0 8px rgba(68, 96, 170, 0.4);
}

/* Button Styling */
#contact button {
  position: relative;
  padding: 1em 0;
  border: none;
  border-radius: 2em;
  background: #4460aa;
  color: #fff;
  font-size: 1.15em;
  font-weight: 700;
  cursor: pointer;
  overflow: hidden;
  display: flex;
  justify-content: center;
  align-items: center;
  transition: background 0.3s, transform 0.2s;
}

#contact button:hover:not(:disabled) {
  background: #232323;
  transform: translateY(-3px) scale(1.05);
}

#contact button:disabled {
  background: #88a0d3;
  cursor: not-allowed;
  transform: none;
}

/* Loader Spinner */
.btn-loader {
  width: 18px;
  height: 18px;
  border: 3px solid #fff;
  border-top-color: transparent;
  border-radius: 50%;
  margin-left: 10px;
  animation: spin 1s linear infinite;
  display: none;
}

button.sending .btn-loader {
  display: inline-block;
}

.btn-text {
  display: inline-block;
}

/* Feedback messages */
#form-feedback {
  margin-top: 1em;
  font-size: 1em;
  min-height: 1.2em;
  text-align: center;
  font-weight: 600;
  color: #4460aa;
  user-select: none;
  word-break: break-word;
}

/* Spinner animation */
@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* Responsive */
@media (max-width: 600px) {
  #contact form {
    max-width: 100%;
  }
}


/* Footer */
/* Footer base */
.footer {
  background: linear-gradient(135deg, #2c3e50, #4460aa);
  color: #e0e6f3;
  padding: 3em 2em 2em;
  font-size: 1em;
  overflow: hidden;
  position: relative;
  user-select: none;
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.footer.visible {
  opacity: 1;
  transform: translateY(0);
}

.footer-container {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  gap: 3em;
  justify-content: space-between;
}

/* About/Brand */
.footer-about {
  flex: 1 1 250px;
}
.footer-logo {
  font-size: 3em;
  color: #f0f7ff;
  font-weight: 900;
  letter-spacing: 3px;
  margin-bottom: 0.5em;
  user-select: text;
}
.footer-about p {
  font-style: italic;
  color: #cfd6eb;
}

/* Links */
.footer-links h4,
.footer-socials h4,
.footer-contact h4 {
  color: #b0c4de;
  font-weight: 600;
  margin-bottom: 1em;
  letter-spacing: 1px;
  font-size: 1.15em;
}
.footer-links ul {
  list-style: none;
  padding: 0;
}
.footer-links ul li {
  margin-bottom: 0.8em;
}
.footer-links ul li a {
  color: #d7e0ff;
  text-decoration: none;
  transition: color 0.3s ease;
  font-weight: 500;
}
.footer-links ul li a:hover,
.footer-links ul li a:focus {
  color: #f0f7ff;
  text-decoration: underline;
}

/* Social Icons */
.footer-socials {
  flex: 1 1 150px;
}
.social-icons {
  display: flex;
  gap: 1.2em;
}
.social-icons a svg {
  width: 28px;
  height: 28px;
  fill: #d7e0ff;
  transition: fill 0.3s ease, transform 0.3s ease;
  cursor: pointer;
}
.social-icons a:hover svg,
.social-icons a:focus svg {
  fill: #e1eaff;
  transform: scale(1.15);
  filter: drop-shadow(0 0 3px #a1bfff);
}

/* Contact */
.footer-contact {
  flex: 1 1 220px;
  line-height: 1.8;
}
.footer-contact p {
  margin: 0.3em 0;
  font-weight: 500;
}
.footer-contact a {
  color: #d7e0ff;
  text-decoration: none;
  font-weight: 600;
}
.footer-contact a:hover,
.footer-contact a:focus {
  color: #f0f7ff;
  text-decoration: underline;
}

/* Bottom Footer Bar */
.footer-bottom {
  text-align: center;
  border-top: 1px solid rgba(255,255,255,0.12);
  padding: 1em 0 0;
  font-size: 0.85em;
  color: #abb3c0;
  user-select: none;
  margin-top: 2em;
}

/* Back to Top Button */
#backToTop {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 44px;
  height: 44px;
  border: none;
  border-radius: 50%;
  background-color: #4460aa;
  color: #fff;
  font-size: 26px;
  cursor: pointer;
  box-shadow: 0 4px 14px rgba(68,96,170,0.5);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.4s ease, transform 0.3s ease;
  z-index: 1000;
}
#backToTop.show {
  opacity: 1;
  pointer-events: auto;
}
#backToTop:hover {
  background-color: #2c3e50;
  transform: scale(1.1);
}


/* Responsive */
@media (max-width: 900px) {
  .hero {
    flex-direction: column;
    text-align: center;
    gap: 3em;
  }
  .hero-content, .hero-image {
    min-width: 220px;
  }
  .portfolio-grid {
    flex-direction: column;
  }
}

@media (max-width: 600px) {
  nav {
    flex-direction: column;
    padding: 1.3em 1em;
    gap: 1em;
  }
  .hero {
    padding: 2.5em 1em;
    gap: 1em;
  }
}