/*
This is our fallback theme (e.g. before JS runs)
*/
:root {
  --bg: #ffffff;
  --surface: #f5f5f5;
  --text: #1a1a1a;
  --text-muted: #666666;
  --accent: #507395;
  --accent-dark: #4a6d93;
  --border: #e0e0e0;
  --nav-bg: #ffffff;
}

/*
use JS to dynamically change the data-theme
attribute of the html element for toggling
light and dark mode
*/
[data-theme="light"] {
  --bg: #ffffff;
  --surface: #f5f5f5;
  --text: #1a1a1a;
  --text-muted: #666666;
  --accent: #507395;
  --accent-dark: #4a6d93;
  --border: #e0e0e0;
  --nav-bg: #ffffff;
}

[data-theme="dark"] {
  --bg: #1e1e2e;
  --surface: #2a2a3e;
  --text: #e0e0e0;
  --text-alt: #1a1a1a;
  --text-muted: #999999;
  --accent: #7a99b8;
  --accent-dark: #4a6d93;
  --border: #3a3a4e;
  --nav-bg: #1e1e2e;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  background-color: var(--bg);
  color: var(--text);
  transition:
    background-color 0.3s ease,
    color 0.3s ease;
}

.muted {
  color: var(--text-muted);
}

.black-text {
  color: var(--text);
}

/* ── Navbar ── */
#main-nav {
  background-color: var(--nav-bg);
  border-bottom: 1px solid var(--border);
  transition:
    background-color 0.3s ease,
    border-color 0.3s ease;
}

#main-nav .navbar-brand {
  color: var(--text);
}

#main-nav .nav-link {
  color: var(--text-muted);
}

#main-nav .nav-link:hover,
#main-nav .nav-link:focus {
  color: var(--accent);
}

#theme-toggle {
  color: var(--text);
  border: 1px solid var(--border);
  background-color: transparent;
  border-radius: 0.375rem;
  padding: 0.25rem 0.6rem;
  transition:
    background-color 0.2s ease,
    color 0.2s ease;
}

#theme-toggle:hover {
  background-color: var(--surface);
}

.navbar-toggler {
  border-color: var(--border);
}

.navbar-toggler-icon {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='%235b7fa6' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

/* ── Layout utilities ── */
html {
  scroll-behavior: smooth;
  scroll-padding-top: 70px;
}

.section-padding {
  padding: 5rem 0;
}

.bg-surface {
  background-color: var(--surface);
  transition: background-color 0.3s ease;
}

.section-title {
  font-size: 2rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 2.5rem;
}

/* ── About ── */

/*
These only apply when dark mode has been toggled, basically
ensuring that they are more *specific* than the default light
mode colors
*/
[data-theme="dark"] .btn-accent,
[data-theme="dark"] .lang-badge,
[data-theme="dark"] .gpa-badge {
  color: #1a1a1a;
}

[data-theme="dark"] .btn-accent:hover,
[data-theme="dark"] .btn-accent:focus {
  color: #1a1a1a;
}

.avatar-placeholder {
  width: 180px;
  height: 180px;
  border-radius: 50%; /* Fit the placeholder to the image */
  background-color: var(--surface);
  border: 3px solid var(--border);
}

.avatar-photo {
  /*
  Fill the container
  */
  width: 100%;
  height: 100%;
  object-fit: cover; /* scale the img to fill the circle w/o stretching*/
  object-position: center top; /* anchor the crop to the top of teh img */
  border-radius: 50%;
}

.btn-accent {
  background-color: var(--accent);
  border-color: var(--accent);
  color: #ffffff;
}

.btn-accent:hover,
.btn-accent:focus {
  background-color: var(--accent-dark);
  border-color: var(--accent-dark);
  color: #ffffff;
}

.btn-outline-accent {
  background-color: transparent;
  border-color: var(--accent);
  color: var(--accent);
}

.btn-outline-accent:hover,
.btn-outline-accent:focus {
  background-color: var(--accent);
  border-color: var(--accent);
  color: #ffffff;
}

/* ── Projects carousel ── */
.project-card {
  background-color: var(--bg);
  border: 1px solid var(--border);
  border-radius: 0.75rem;
  padding: 2.5rem 2rem;
  max-width: 640px;
  text-align: center;
  transition:
    background-color 0.3s ease,
    border-color 0.3s ease;
}

.project-title {
  color: var(--text);
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.project-desc {
  color: var(--text-muted);
  line-height: 1.7;
}

.lang-badge {
  background-color: var(--accent);
  color: #ffffff;
  font-size: 0.8rem;
  padding: 0.35em 0.75em;
  border-radius: 1rem;
}

.carousel-control-prev-icon,
.carousel-control-next-icon {
  filter: invert(40%) sepia(50%) saturate(400%) hue-rotate(180deg);
}

.carousel-indicators [data-bs-target] {
  background-color: var(--accent);
  opacity: 0.5;
}

.carousel-indicators .active {
  opacity: 1;
}

#projectsCarousel {
  padding-bottom: 2.5rem;
}

/* ── Previous Work ── */
.subsection-title {
  font-size: 1.1rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--accent);
  margin-bottom: 1.5rem;
}

.work-item {
  padding: 1.25rem;
  border-left: 3px solid var(--accent);
  background-color: var(--surface);
  border-radius: 0 0.5rem 0.5rem 0;
  margin-bottom: 1.25rem;
  transition: background-color 0.3s ease;
}

.work-date {
  font-size: 0.8rem;
  color: var(--text-muted);
  white-space: nowrap;
}

.gpa-badge {
  display: inline-block;
  background-color: var(--accent);
  color: #ffffff;
  font-size: 0.75rem;
  padding: 0.2em 0.6em;
  border-radius: 0.25rem;
  font-weight: 600;
}

.dean-list-badge,
.president-list-badge {
  font-size: 0.9rem;
}

.courses-list {
  font-size: 0.85rem;
}

.work-bullets {
  color: var(--text-muted);
  padding-left: 1.2rem;
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.7;
}

.work-bullets li {
  margin-bottom: 0.4rem;
}

/* ── Skills ── */
.skill-badge {
  display: inline-block;
  background-color: var(--bg);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 2rem;
  padding: 0.35rem 1rem;
  font-size: 0.875rem;
  font-weight: 500;
  transition:
    background-color 0.2s ease,
    color 0.2s ease,
    border-color 0.2s ease;
}

.skill-badge:hover {
  background-color: var(--accent);
  color: #ffffff;
  border-color: var(--accent);
}

/* ── Contact ── */
.contact-form .form-label {
  color: var(--text);
  font-weight: 500;
}

.contact-form .form-control {
  background-color: var(--surface);
  border-color: var(--border);
  color: var(--text);
  transition:
    background-color 0.3s ease,
    border-color 0.3s ease,
    color 0.3s ease;
}

.contact-form .form-control::placeholder {
  color: var(--text-muted);
}

.contact-form .form-control:focus {
  background-color: var(--surface);
  border-color: var(--accent);
  color: var(--text);
  box-shadow: 0 0 0 0.2rem rgba(91, 127, 166, 0.25);
}

.footer {
  background-color: var(--surface);
  font-size: 0.875rem;
  border-top: 1px solid var(--border);
}

/* ── Typography ── */
h1,
h2,
h3,
h4,
h5,
h6 {
  color: var(--text);
}

p {
  color: var(--text);
}

a {
  color: var(--accent);
}

a:hover {
  color: var(--accent-dark);
}

/* ── Section transitions ── */
section {
  transition: background-color 0.3s ease;
}

/* ── Responsive ── */
@media (max-width: 767px) {
  .section-padding {
    padding: 3.5rem 0;
  }

  .section-title {
    font-size: 1.6rem;
  }

  .avatar-placeholder {
    width: 130px;
    height: 130px;
    font-size: 3.5rem;
  }

  .project-card {
    padding: 2rem 1.25rem;
  }

  .work-item {
    padding: 1rem;
  }
}

@media (max-width: 575px) {
  body {
    padding-top: 60px;
  }
}