/* ============================= */
/* ====== Light Mode Styles ===== */
/* ============================= */

.intro-flex {
  display: flex;
  align-items: center;
  gap: 2rem;          /* space between image and text */
  flex-wrap: wrap;    /* allows stacking on smaller screens */
  margin-top: 1rem;
}

.profile-image img {
  max-width: 180px;   /* control image size */
  height: auto;
  border-radius: 8px;
  display: block;
}

.intro-text {
  flex: 1;            /* text takes remaining space */
  min-width: 250px;   /* ensures readability on small screens */
}


body {
  background: #e6ecf2;
  color: #0a1f44; /* navy blue for base text */
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
  line-height: 1.6;
  transition: background 0.3s, color 0.3s;
}

.layout {
  display: flex;
  min-height: 100vh;
}

.sidebar {
  width: 250px;
  background: #d3dce6;
  color: #0a1f44;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  align-items: center; /* This centers all child elements horizontally */
  padding: 2rem 1rem;
  position: fixed;
  top: 0;
  bottom: 0;
  left: 0;
  text-align: center; /* Optional: centers text inside elements */
}

.sidebar .logo {
  font-size: 1.5rem;
  margin-bottom: 2rem;
}

.sidebar nav a {
  display: block;
  margin: 1rem 0;
  color: inherit;
  text-decoration: none;
  font-weight: bold;
  text-align: center;
}

.sidebar nav a.active,
.sidebar nav a:hover {
  color: #4b6cb7; /* soft blue accent */
}

.sidebar .social {
  margin-top: auto;
}

.sidebar .social a {
  display: block;
  margin: 0.5rem 0;
  color: inherit;
  text-decoration: none;
}

/* Content Area */
.content {
  margin-left: 250px; /* same as sidebar width */
  padding: 3rem;
  flex: 1;
  background: #e6ecf2; /* lighter slate gray */
  color: #0a1f44;
}

.content section {
  background: #ffffff;
  padding: 2rem;
  margin-bottom: 2rem;
  border-radius: 8px;
  box-shadow: 0 0 15px rgba(0,0,0,0.1);
}

/* Headings */
h1, h2 {
  color: #0a1f44;
  text-shadow: 1px 1px 3px rgba(0,0,0,0.1);
}

h2 {
  border-left: 5px solid #4b6cb7;
  padding-left: 10px;
}

.btn {
  display: flex;              /* flex so text centers inside */
  justify-content: center;
  align-items: center;
  padding: 0.75rem 1.5rem;
  background: #0a1f44;
  color: #ffffff;
  border-radius: 4px;
  text-decoration: none;
  border: 1px solid #0a1f44;
  transition: background 0.3s, border-color 0.3s;
  margin: 0;                  /* remove leftover margins */
}

.buttons {
  display: flex;
  justify-content: center;    /* centers the group */
  flex-wrap: wrap;
  gap: 1rem;                  /* consistent spacing */
  margin-top: 1rem;
  width: 100%;                /* ensure container spans full width */
}


.btn:hover {
  background: #143d6b; /* slightly lighter navy */
  border-color: #143d6b;
}

/* Footer */
footer {
  text-align: center;
  padding: 1rem;
  color: #0a1f44;
  font-size: 0.9rem;
}

/* ============================= */
/* ====== Dark Mode Styles ===== */
/* ============================= */

body.dark-mode {
  background: #e6ecf2; /* lightest base gray behind content */
  color: #ffffff;
}

/* Sidebar stays black */
body.dark-mode .sidebar {
  background: #000000;
  color: #f0f0f0;
}

body.dark-mode .sidebar nav a.active,
body.dark-mode .sidebar nav a:hover {
  color: #00cccc; /* teal accent */
}

/* Content area uses second-darkest gray */
body.dark-mode .content {
  background: #2a2a2a; /* dark gray body background */
  color: #ffffff;
}

/* Each section styled with white text and teal borders */
body.dark-mode .content section {
  background: #2a2a2a; /* same as content for seamless look */
  color: #ffffff;
  border: 1px solid #00cccc; /* teal accent border */
  border-radius: 8px;
  padding: 2rem;
  margin-bottom: 2rem;
  box-shadow: none; /* cleaner in dark mode */
}

/* Headings with teal accent */
body.dark-mode h1,
body.dark-mode h2 {
  color: #ffffff;
  text-shadow: none;
}

body.dark-mode h2 {
  border-left: 5px solid #00cccc;
  padding-left: 10px;
}

/* Buttons with teal background */
body.dark-mode .btn {
  background: #00cccc;
  color: #1c1c1c;
  border: 1px solid #00cccc;
}

body.dark-mode .btn:hover {
  background: #00e5ff;
  border-color: #00e5ff;
}

/* Footer muted */
body.dark-mode footer {
  color: #cccccc;
}

/* ============================================== */
/* ====== Changes side bar for mobile users ===== */
/* ============================================== */

@media (max-width: 768px) {
  /* Sidebar becomes a top nav bar */
  .sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;          /* full width across the top */
    height: 60px;         /* fixed height for nav bar */
    flex-direction: row;  /* horizontal layout */
    justify-content: center; /* center nav links */
    align-items: center;
    padding: 0 1rem;
    text-align: center;
    z-index: 1000;
  }

  /* Hide the logo/name on mobile */
  .sidebar .logo {
    display: none;
  }

  /* Nav links go inline */
  .sidebar nav {
    display: flex;
    gap: 1rem;
  }

  .sidebar nav a {
    margin: 0;
  }

  /* Hide socials */
  .sidebar .social {
    display: none;
  }

  /* Content no longer offset by sidebar */
  .content {
    margin-left: 0;
    margin-top: 60px; /* push content below top nav */
    padding: 1rem;
  }

  /* Center buttons under intro text */
  .buttons {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1rem;
    margin-top: 1rem;
    width: 100%;
  }

  .buttons .btn {
    margin-right: 0;
  }
}