:root {
  --color-bg: #ffffff;
  --color-text: rgb(71, 83, 104);
  --color-gray: #5f6b84;
  --color-primary: #3a23bc;
  --color-h3: #dedefb;
  --color-accent: #1a59e3;
  --color-heads: #003479;
  --color-resume-bg: #0037ff;
  --color-resume-: #e2e5f8;
  --color-focus: #0a2a93;
  --color-hover: #0c034d;
  --color-hover-icon: #6c65ea;
  --card-p: #c0c0e7;
  --card-bg: #000878;
  --separator: #1243e4;
  --border-radius: 0.75rem;
  --max-width: 1200px;
  --transition: 0.3s ease;
  --spacing-section: 4rem;
}

[data-theme="dark"] {
  --color-bg: #002d02;
  --color-text: #d7fad4;
  --color-gray: #a9c9ae;
  --color-primary: #046607;
  --color-h3: #ddffdf;
  --color-heads: #ddffdf;
  --color-resume-: #ddffdf;
  --color-resume-bg: #046607;
  --card-p: #94db9f;
  --color-accent: #0aa71f;
  --card-bg: #036e11;
  --color-focus: #0e891e;
  --color-hover: #02460d;
  --separator: #00ff33;
  background: var(--color-bg);
  color: var(--color-text);
}

section:not(:last-of-type)::after {
  content: "";
  display: block;
  height: 5.5px;
  margin-top: 4rem;
  box-shadow: 0px 2.2px 8px var(--color-accent);
  background: var(--separator);
  opacity: 0.5;
  border-radius: 2px;
}

.section-divider {
  content: "";
  display: block;
  height: 5.5px;
  margin-top: 4rem;
  box-shadow: 0px 2.2px 8px var(--color-accent);
  background: var(--separator);
  opacity: 0.5;
  border-radius: 2px;
}

.logo {
  font-family: "Orbitron", sans-serif;
  font-weight: 700;
  font-size: 1.75rem;
  color: var(--color-heads);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.logo img {
  width: 205px;
  height: 50px;
  margin-right: 0.5rem;
}

.logo-img.dark {
  display: none;
}

[data-theme="dark"] .logo-img.light {
  display: none;
}

[data-theme="dark"] .logo-img.dark {
  display: inline;
}

.model-dark {
  display: none;
}
[data-theme="dark"] .model-light {
  display: none;
}
[data-theme="dark"] .model-dark {
  display: inline;
}

h1,
h2.section-title,
h3 {
  font-family: "Poppins", sans-serif;
}

/* Reset and base */
* {
  box-sizing: border-box;
}
body {
  margin: 0;
  font-family: "Poppins", sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  scroll-behavior: smooth;
}
a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color var(--transition);
}
a:hover,
a:focus {
  color: var(--color-focus);
  outline: none;
}
main {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 2rem 4rem 2rem;
}
/* Navigation */
header {
  position: sticky;
  top: 0;
  background: var(--color-bg);
  box-shadow: 0 3px 8px var(--color-accent);
  z-index: 100;
}
nav.container {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 2rem;
}
.logo {
  font-weight: 700;
  font-size: 1.5rem;
  color: var(--color-heads);
  user-select: none;
  cursor: default;
}
ul.nav-links {
  list-style: none;
  display: flex;
  gap: 2rem;
  margin: 0;
  padding: 0;
  font-weight: 600;
  font-size: 1rem;
}
ul.nav-links li a {
  color: var(--color-gray);
  padding: 0.25rem 0;
  border-bottom: 2px solid transparent;
  transition: border-color var(--transition), color var(--transition);
}
ul.nav-links li a:hover,
ul.nav-links li a:focus {
  color: var(--color-primary);
  border-bottom-color: var(--color-accent);
  outline: none;
}
/* Sections */
section {
  padding-top: var(--spacing-section);
  padding-bottom: var(--spacing-section);
  border-radius: var(--border-radius);
}
/* Hero (Home) */
#home {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  min-height: 80vh;
  padding-bottom: 6rem;
}
.hero-name {
  font-family: "Cinzel", serif;
  font-size: 3.8rem;
  letter-spacing: 1px;
  color: var(--color-heads);
}

#home .hero-text {
  flex: 1 1 400px;
  max-width: 600px;
}
#home h1 {
  font-weight: 700;
  font-size: 3.5rem;
  line-height: 1.1;
  margin: 0 0 1rem 0;
  color: var(--color-heads);
}
#home p.subtitle {
  font-size: 1.25rem;
  color: var(--color-gray);
  margin: 0 0 2rem 0;
}
#home .hero-cta {
  display: inline-block;
  padding: 0.75rem 2rem;
  background-color: var(--color-resume-bg);
  color: var(--color-resume-);
  font-weight: 600;
  font-size: 1.1rem;
  border-radius: var(--border-radius);
  box-shadow: 0 8px 15px rgba(17, 24, 39, 0.2);
  cursor: pointer;
  user-select: none;
  transition: background-color var(--transition), transform 0.2s ease;
  border: none;
  text-align: center;
  text-decoration: none;
}
#home .hero-cta:hover,
#home .hero-cta:focus {
  background-color: var(--color-focus);
  transform: scale(1.05);
  outline: none;
}
#home .hero-image {
  flex: 1 1 300px;
  max-width: 380px;
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: 0 12px 50px rgba(10, 42, 147);
  background: var(--color-heads);
  display: flex;
  align-items: center;
  justify-content: center;
}
#home .hero-image img {
  width: 100%;
  border-radius: var(--border-radius);
  object-fit: fill;
  object-position: center;
  aspect-ratio: 1/1;
  max-height: 380px;
  user-select: none;
}
/* Section heading */
h2.section-title {
  font-family: "Gill Sans", "Gill Sans MT", Calibri, "Trebuchet MS", sans-serif;
  font-weight: 700;
  font-size: 2rem;
  margin-bottom: 2rem;
  color: var(--color-heads);
}
/* About */
#about p {
  max-width: 800px;
  font-size: 1.1rem;
  color: var(--color-gray);
}
/* Cards container */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
}
/* Cards style */
.card {
  background: var(--card-bg);
  border-radius: var(--border-radius);
  padding: 1.5rem;
  box-shadow: 0 4px 10px var(--color-hover);
  transition: box-shadow 0.3s ease, transform 0.3s ease;
  cursor: default;
}
.card:hover,
.card:focus-within {
  box-shadow: 0 8px 24px var(--color-accent);
  transform: translateY(-4px);
  outline: none;
}
.card h3 {
  margin-top: 0;
  margin-bottom: 1rem;
  font-weight: 700;
  color: var(--color-h3);
  font-size: 1.25rem;
}
.card p {
  color: var(--card-p);
  font-size: 1rem;
  line-height: 1.4;
  margin: 0;
}
/* Skills badges */
.skills-list {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  font-weight: 600;
}
.skill-badge {
  background-color: var(--color-accent);
  color: #ffffff;
  padding: 0.4rem 1rem;
  border-radius: var(--border-radius);
  font-size: 0.9rem;
  user-select: none;
  box-shadow: 0 4px 10px rgba(37, 99, 235, 0.3);
  transition: background-color 0.3s ease;
}
.skill-badge:hover,
.skill-badge:focus {
  background-color: var(--color-focus);
  outline: none;
  cursor: default;
  transition: background-color 0.3s ease, transform 0.3 ease;
  scale: 1.1;
}
/* Connect section */
#connect a.social-link {
  display: inline-block;
  margin-right: 1.5rem;
  font-size: 1.8rem;
  color: var(--color-accent);
  transition: color var(--transition);
  user-select: none;
}
#connect a.social-link:hover,
#connect a.social-link:focus {
  color: var(--color-focus);
  outline: none;
}
#connect a.social-link i {
  color: inherit;
  display: inline-block;
  transition: color var(--transition);
}
/* Wrapper spacing and alignment */
#connect .social-icons {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1.5rem;
  margin-top: 2rem;
}

/* Icon link styling */
#connect .social-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  /* background-color: var(--color-hover-icon); */
  color: white;
  font-size: 1.25rem;
  transition: var(--color-hover) 0.3s ease, transform 0.2s ease;
  text-decoration: none;
}

#connect .social-link:hover {
  transform: scale(1.5);
}

#connect .social-link i {
  color: inherit;
}

/* Responsive adjustments */
@media (max-width: 768px) {
  #home {
    flex-direction: column-reverse;
    align-items: center;
    text-align: center;
    padding: 2rem 1rem;
  }

  #home .hero-text {
    max-width: 100%;
  }

  #home h1 {
    font-size: 2.5rem;
  }

  #home .hero-image {
    max-width: 80%;
    padding: 0;
  }
}
@media (max-width: 480px) {
  .card h3 {
    font-size: 1.1rem;
  }
  .card p {
    font-size: 0.95rem;
  }
}
@media (max-width: 768px) {
  ul.nav-links {
    flex-wrap: wrap;
    justify-content: center;
    gap: 1rem;
  }

  nav.container {
    flex-direction: column;
    gap: 1rem;
  }
}
@media (max-width: 600px) {
  .contact-form {
    width: 100%;
    padding: 1rem;
  }

  #connect .social-icons {
    gap: 1rem;
    flex-wrap: wrap;
  }

  #connect .social-link {
    width: 45px;
    height: 45px;
    font-size: 1rem;
  }
}


/* Theme toggle button */
.theme-toggle {
  position: fixed;
  top: 1rem;
  right: 1rem;
  background: transparent;
  font-size: 1.5rem;
  border: none;
  cursor: pointer;
  z-index: 999;
  color: var(--color-accent);
  transition: transform 0.3s ease;
}
.theme-toggle:hover {
  transform: scale(1.2);
}

/* Animated project buttons */
.btn {
  background-color: var(--color-resume-bg);
  color: var(--color-resume-);
  padding: 0.5rem 1.25rem;
  border-radius: var(--border-radius);
  font-weight: 600;
  transition: background-color 0.3s ease, transform 0.2s ease;
  text-decoration: none;
  display: inline-block;
  margin-top: 0.5rem;
}
.btn:hover {
  background-color: var(--color-focus);
  color: var(--color-resume-);
  transform: translateY(-2px);
}

/* Contact form styles */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  max-width: 500px;
  margin: 2rem 0;
}
.contact-form input,
.contact-form textarea {
  padding: 0.75rem 1rem;
  font-size: 1rem;
  border-radius: var(--border-radius);
  border: 1px solid var(--color-gray);
  background-color: white;
  color: black;
  font-family: inherit;
}
.contact-form button {
  background-color: var(--color-primary);
  color: white;
  font-weight: 600;
  font-size: 1rem;
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: var(--border-radius);
  cursor: pointer;
  transition: background-color 0.3s ease, transform 0.2s ease;
}
.contact-form button:hover {
  background-color: var(--color-hover);
  transform: scale(1.03);
}

/* Animation helpers */
.fade-in {
  animation: fadeIn 1.5s ease-out forwards;
  opacity: 0;
}
@keyframes fadeIn {
  to {
    opacity: 1;
  }
}

.bounce {
  animation: bounce 2s infinite;
}
@keyframes bounce {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}