/* Base (dark theme) variables */
:root {
  --color-background: #0a0a0a;
  --color-text: #f5f5f5;
  --color-header-bg: #001e44;
  --color-header-text: #ffffff;
  --color-link: #96bee6;
  --color-link-hover: #1e407c;
  --color-card-bg: #001e44;
  --color-card-border: #1e407c;
  --color-skill-bg: #1e407c;
  --color-skill-text: #ffffff;
  --color-footer-text: #c9c9c9;

  --font-heading: "Special Elite", system-ui;
  --font-body: "Open Sans", sans-serif;
  --transition: 0.3s ease;

  /* Headings in dark mode: use body text color (light) */
  --color-heading: var(--color-text);
}

/* Light‑theme overrides */
html[data-theme="light"] {
  --color-background: #f5f5f5;
  --color-text: #0a0a0a;
  --color-header-bg: #001e44;
  --color-header-text: #ffffff;
  --color-link: #1e407c;
  --color-link-hover: #001e44;
  --color-card-bg: #ffffff;
  --color-card-border: #c9c9c9;
  --color-skill-bg: #001e44;
  --color-skill-text: #ffffff;
  --color-footer-text: #c9c9c9;

  /* Headings in light mode: navy heading text for contrast on white background */
  --color-heading: var(--color-header-bg);
}

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

body {
  font-family: var(--font-body);
  background: var(--color-background);
  color: var(--color-text);
  line-height: 1.6;
  transition: var(--transition);
}

a {
  color: var(--color-link);
  text-decoration: none;
  transition: var(--transition);
}

a:hover {
  color: var(--color-link-hover);
}

nav a:hover {
  color: var(--color-link);
}

.container {
  max-width: 900px;
  margin: 0 auto;
  padding: 2rem 1rem;
}

header {
  background: var(--color-header-bg);
  color: var(--color-header-text);
  padding: 1rem 0;
}

header .container {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
}

header h1 {
  font-family: var(--font-heading);
  font-size: 1.8rem;
  color: var(--color-header-text);
}

nav ul {
  list-style: none;
  display: flex;
}

nav li+li {
  margin-left: 1rem;
}

nav a {
  font-weight: bold;
  color: var(--color-header-text);
}

#theme-toggle {
  background: none;
  border: 1px solid var(--color-header-text);
  padding: 0.3rem 0.6rem;
  border-radius: 4px;
  color: var(--color-header-text);
  font-size: 0.9rem;
  cursor: pointer;
  transition: var(--transition);
}

#theme-toggle:hover {
  background: var(--color-header-text);
  color: var(--color-header-bg);
}

h2 {
  font-family: var(--font-heading);
  margin-bottom: 1.5rem 0 0.5rem;
  color: var(--color-heading);
}

main h1 {
  font-family: var(--font-heading);
  color: var(--color-heading);
}

.section {
  margin-bottom: 2rem;
}

.profile-pic {
  width: 150px;
  height: 150px;
  border-radius: 50%;
  object-fit: cover;
  border: 4px solid var(--color-link-hover);
  margin-bottom: 1.5rem;
  display: block;
}

.skills-list,
.resume-list,
.projects-grid {
  list-style: none;
}

.skills-list li {
  display: inline-block;
  background: var(--color-skill-bg);
  color: var(--color-skill-text);
  padding: 0.3rem 0.6rem;
  margin: 0.3rem 0.5rem 0.5rem 0;
  border-radius: 4px;
}

/* PROJECT CARDS */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.project-card {
  background: var(--color-card-bg);
  border: 1px solid var(--color-card-border);
  border-radius: 6px;
  padding: 1rem;
  margin-bottom: 1.5rem;
  transition: var(--transition);
}

.project-card:hover {
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.project-card h3 {
  margin-bottom: 0.5rem;
}

.project-card {
  display: block;
  background: var(--color-card-bg);
  border: 1px solid var(--color-card-border);
  border-radius: 6px;
  padding: 1rem;
  transition: var(--transition);
}

.project-card a {
  font-size: 0.9rem;
  font-weight: bold;
  color: var(--color-link);
}

.project-content {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}

.project-thumb {
  display: inline-block;
  width: 250px;
  vertical-align: top;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: contain;
  border-radius: 4px;
  cursor: pointer;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.project-thumb:hover {
  transform: scale(1.03);
}

/* Lightbox Styles */
.lightbox {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: rgba(0, 0, 0, 0.9);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

.lightbox.open {
  display: flex;
}

.lightbox img {
  max-width: 80%;
  /* Set max width to ensure the image doesn't stretch too large */
  max-height: 80%;
  /* Set max height to fit the viewport */
  object-fit: contain;
  /* Preserve the aspect ratio of the image */
  border-radius: 8px;
}

/* RESUME ITEMS */
.resume-item {
  background: var(--color-card-bg);
  border: 1px solid var(--color-card-border);
  border-radius: 6px;
  padding: 1.2rem 1rem;
  margin-bottom: 1.5rem;
}

.resume-item .role {
  font-size: 1.25rem;
  margin-bottom: 0.2rem;
  color: var(--color-link);
}

.resume-item .company {
  font-weight: bold;
  margin-bottom: 0.75rem;
  color: var(--color-link);
}

.resume-item .company span {
  font-weight: normal;
  color: var(--color-silver);
  margin-left: 0.5rem;
}

.responsibilities {
  list-style-type: disc;
  list-style-position: outside;
  padding-left: 1.5rem;
  margin-bottom: 1rem;
}

.responsibilities li {
  margin-bottom: 0.5rem;
  line-height: 1.5;
  text-indent: 0;
}

footer {
  text-align: center;
  padding: 1rem 0;
  font-size: 0.9rem;
  color: var(--color-footer-text);
}

/* ✅ Responsive nav & layout */
@media (max-width: 600px) {
  header .container {
    flex-direction: column;
    align-items: flex-start;
  }

  nav ul {
    flex-direction: column;
    width: 100%;
  }

  nav li+li {
    margin-left: 0;
    margin-top: 0.5rem;
  }

  #theme-toggle {
    margin-top: 0.5rem;
  }

  /* ✅ Stack image and text vertically on mobile */
  .project-content {
    flex-direction: column;
    align-items: flex-start;
  }

  .project-thumb {
    width: 100%;
    height: auto;
  }
}

/* LINK TREE STYLES */
.link-tree-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  max-width: 600px;
  margin: 0 auto;
  text-align: center;
}

.link-tree-container .profile-pic {
  margin-bottom: 1rem;
}

.link-tree-container h2 {
  margin-bottom: 0.2rem;
}

.link-tree-container p {
  margin-bottom: 2rem;
  color: var(--color-text);
}

.link-tree-nav {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.link-btn {
  display: block;
  width: 100%;
  padding: 1.2rem;
  background: var(--color-card-bg);
  color: var(--color-heading);
  border: 2px solid var(--color-card-border);
  border-radius: 8px;
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: bold;
  text-decoration: none;
  transition: var(--transition);
}

.link-btn:hover {
  background: var(--color-link-hover);
  color: #ffffff;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}