/* Shared light/dark theme for sakbari.com */

:root {
  color-scheme: light;

  --site-bg: #FFFFFF;
  --site-surface: #FFFFFF;
  --site-surface-soft: #F5F7F8;
  --site-text: #2F3337;
  --site-muted: #6B7280;
  --site-border: rgba(31, 41, 55, 0.18);

  --site-cyan: #087F91;
  --site-blue: #2563EB;
  --site-award: #D95D45;
  --site-repo: #4B5563;
  --site-slides: #6D5BD0;
  --site-poster: #B7651B;
  --site-talk: #B23A48;
  --site-orcid: #6C8E23;

  --hover-cyan: rgba(8, 127, 145, 0.08);
  --hover-blue: rgba(37, 99, 235, 0.08);
  --hover-award: rgba(217, 93, 69, 0.08);
  --hover-repo: rgba(75, 85, 99, 0.08);
  --hover-slides: rgba(109, 91, 208, 0.08);
  --hover-poster: rgba(183, 101, 27, 0.08);
  --hover-talk: rgba(178, 58, 72, 0.08);
  --hover-orcid: rgba(108, 142, 35, 0.08);
}

html[data-theme="dark"] {
  color-scheme: dark;

  --site-bg: #15171A;
  --site-surface: #1B1F24;
  --site-surface-soft: #20252B;
  --site-text: #E5E7EB;
  --site-muted: #A9B1BC;
  --site-border: rgba(229, 231, 235, 0.17);

  /* Same color families, lifted for contrast on a dark background. */
  --site-cyan: #4BC4D2;
  --site-blue: #78A2FF;
  --site-award: #F08A72;
  --site-repo: #B6BEC8;
  --site-slides: #B6A7FF;
  --site-poster: #E2A35B;
  --site-talk: #E47A89;
  --site-orcid: #A6CE39;

  --hover-cyan: rgba(75, 196, 210, 0.11);
  --hover-blue: rgba(120, 162, 255, 0.11);
  --hover-award: rgba(240, 138, 114, 0.11);
  --hover-repo: rgba(182, 190, 200, 0.10);
  --hover-slides: rgba(182, 167, 255, 0.11);
  --hover-poster: rgba(226, 163, 91, 0.11);
  --hover-talk: rgba(228, 122, 137, 0.11);
  --hover-orcid: rgba(166, 206, 57, 0.11);
}

/* Minima / site-wide surfaces */
html,
body {
  background-color: var(--site-bg);
}

body {
  color: var(--site-text);
  transition: background-color 160ms ease, color 160ms ease;
}

a,
a:visited {
  color: var(--site-cyan);
}

h1, h2, h3, h4, h5, h6,
.post-title,
.page-heading {
  color: var(--site-text);
}

.site-header {
  background-color: var(--site-bg);
  border-top-color: var(--site-text);
  border-bottom-color: var(--site-border);
}

.site-title,
.site-title:visited,
.site-nav .page-link,
.site-nav .page-link:visited {
  color: var(--site-text);
}

.site-nav {
  background-color: var(--site-bg);
  border-color: var(--site-border);
}

.site-nav .menu-icon > svg path {
  fill: var(--site-text);
}

.site-footer {
  background-color: var(--site-bg);
  border-top-color: var(--site-border);
}

.footer-col-wrapper,
.post-meta {
  color: var(--site-muted);
}

.svg-icon {
  fill: var(--site-muted);
}

blockquote {
  color: var(--site-muted);
  border-left-color: var(--site-border);
}

pre,
code {
  color: var(--site-text);
  background-color: var(--site-surface-soft);
  border-color: var(--site-border);
}

table {
  color: var(--site-text);
}

table th,
table td {
  border-color: var(--site-border);
}

table tr:nth-child(even) {
  background-color: var(--site-surface-soft);
}

hr {
  border-color: var(--site-border);
}

/* Components used across the custom pages */
.home-intro,
.news-item,
.contact-card {
  background-color: var(--site-surface);
  border-color: var(--site-border) !important;
}

.home-photo {
  border-color: var(--site-border) !important;
}

.contact-elsewhere {
  border-top-color: var(--site-border) !important;
}

.pub-card {
  border-left-color: var(--site-border) !important;
}

.pub-resources {
  border-top-color: var(--site-border) !important;
  border-bottom-color: var(--site-border) !important;
}

.pub-venue,
.pub-keyword,
.pub-copy-btn,
.bibtex-source {
  border-color: var(--site-border);
}

.bibtex-source {
  background-color: var(--site-surface-soft) !important;
}

/* Keep badges vivid and readable in either mode. */
.pub-status,
.news-status {
  color: var(--site-blue) !important;
}

.pub-award,
.news-award {
  color: var(--site-award) !important;
}

/* Shared resource colors */
.pub-btn--repo,
.pub-btn--repo:visited,
.news-btn--repo,
.news-btn--repo:visited,
.contact-btn--github,
.contact-btn--github:visited {
  color: var(--site-repo) !important;
}

.pub-btn--venue,
.pub-btn--venue:visited,
.news-btn--paper,
.news-btn--paper:visited,
.contact-btn--scholar,
.contact-btn--scholar:visited {
  color: var(--site-cyan) !important;
}

.pub-btn--slides,
.pub-btn--slides:visited,
.news-btn--slides,
.news-btn--slides:visited {
  color: var(--site-slides) !important;
}

.pub-btn--poster,
.pub-btn--poster:visited {
  color: var(--site-poster) !important;
}

.pub-btn--talk,
.pub-btn--talk:visited,
.news-btn--talk,
.news-btn--talk:visited,
.contact-btn--x,
.contact-btn--x:visited {
  color: var(--site-talk) !important;
}

.contact-btn--linkedin,
.contact-btn--linkedin:visited {
  color: var(--site-blue) !important;
}

.contact-btn--orcid,
.contact-btn--orcid:visited {
  color: var(--site-orcid) !important;
}

/* Theme toggle */
.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  margin-left: 0.75rem;
  padding: 0;
  border: 1px solid var(--site-border);
  border-radius: 999px;
  background: transparent;
  color: var(--site-text);
  vertical-align: middle;
  cursor: pointer;
  transition:
    transform 130ms ease,
    background-color 130ms ease,
    border-color 130ms ease;
}

.theme-toggle:hover,
.theme-toggle:focus-visible {
  transform: translateY(-1px);
  background-color: var(--site-surface-soft);
  border-color: var(--site-muted);
  outline: none;
}

.theme-toggle:focus-visible {
  box-shadow: 0 0 0 2px var(--site-bg), 0 0 0 4px var(--site-cyan);
}

.theme-icon {
  width: 1.05rem;
  height: 1.05rem;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
  fill: none;
}

.theme-icon--sun {
  display: none;
}

html[data-theme="dark"] .theme-icon--sun {
  display: block;
}

html[data-theme="dark"] .theme-icon--moon {
  display: none;
}

@media screen and (max-width: 600px) {
  .site-nav .theme-toggle {
    margin: 0.55rem 0 0 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  body,
  .theme-toggle {
    transition: none;
  }
}

/* Site-wide copyright */
.site-footer .wrapper::after {
  content: "© Sina Akbari";
  display: block;
  color: var(--site-muted);
  font-size: 0.82rem;
  line-height: 1.5;
  text-align: center;
}