/* ================================================================
   Arpit Singh Gautam — Personal Website
   ================================================================ */

/* --- CSS Variables --- */
:root {
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  --bg: #ffffff;
  --bg-subtle: #f6f8fa;
  --bg-hover: #f0f2f5;
  --text: #24292f;
  --text-muted: #57606a;
  --heading: #1a1a2e;
  --link: #0550ae;
  --link-hover: #0969da;
  --border: #d0d7de;
  --accent: #c0392b;
  --tag-bg: #ddf4ff;
  --tag-text: #0550ae;
  --tag-border: #b6e3ff;
  --max-w: 760px;
  --header-h: 96px;
}

[data-theme="dark"] {
  --bg: #0d1117;
  --bg-subtle: #161b22;
  --bg-hover: #1c2128;
  --text: #c9d1d9;
  --text-muted: #8b949e;
  --heading: #e6edf3;
  --link: #58a6ff;
  --link-hover: #79b8ff;
  --border: #30363d;
  --accent: #e05a2b;
  --tag-bg: #1c2d3f;
  --tag-text: #58a6ff;
  --tag-border: #1f4068;
}

/* --- Reset & Base --- */
*, *::before, *::after { box-sizing: border-box; }
html { font-size: 16px; scroll-behavior: smooth; }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  margin: 0;
  padding: 0;
  transition: background 0.2s, color 0.2s;
}

a { color: var(--link); text-decoration: none; }
a:hover { color: var(--link-hover); text-decoration: underline; }
img { max-width: 100%; height: auto; display: block; }
h1, h2, h3, h4 { color: var(--heading); line-height: 1.3; margin-top: 0; }
p { margin-top: 0; margin-bottom: 1rem; }

/* --- Layout --- */
.page-wrap {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
}

/* ================================================================
   HEADER
   ================================================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
}

.header-top {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 14px 24px 10px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-brand {
  font-size: 1.05rem;
  font-weight: 400;
  color: var(--heading);
  text-decoration: none;
  white-space: nowrap;
}
.nav-brand:hover { text-decoration: none; color: var(--heading); }
.nav-brand .brand-accent { font-weight: 700; color: var(--accent); }

.header-icons {
  display: flex;
  align-items: center;
  gap: 10px;
}
.header-icons a {
  color: var(--text-muted);
  font-size: 1rem;
  text-decoration: none;
  line-height: 1;
  transition: color 0.15s;
}
.header-icons a:hover { color: var(--heading); text-decoration: none; }

.theme-toggle {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 1rem;
  padding: 2px 4px;
  color: var(--text-muted);
  border-radius: 4px;
  line-height: 1;
}
.theme-toggle:hover { background: var(--bg-hover); }

.header-nav {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px 10px;
  display: flex;
  gap: 2px;
  align-items: center;
}
.header-nav a {
  font-size: 0.88rem;
  color: var(--text-muted);
  text-decoration: none;
  padding: 3px 10px;
  border-radius: 5px;
  transition: background 0.12s, color 0.12s;
}
.header-nav a:hover { background: var(--bg-hover); color: var(--heading); text-decoration: none; }
.header-nav a.active { color: var(--heading); font-weight: 500; }

/* ================================================================
   HERO
   ================================================================ */
.hero {
  padding: 52px 0 36px;
  display: flex;
  gap: 40px;
  align-items: flex-start;
  position: relative;
  overflow: hidden;
}

/* Subtle dot matrix behind photo */
.hero::after {
  content: '';
  position: absolute;
  right: -8px;
  top: 30px;
  width: 250px;
  height: 250px;
  border-radius: 50%;
  background-image: radial-gradient(circle, var(--border) 1.5px, transparent 1.5px);
  background-size: 16px 16px;
  opacity: 0.55;
  pointer-events: none;
  z-index: 0;
}
.hero > * { position: relative; z-index: 1; }

.hero-text { flex: 1; min-width: 0; }

.hero-name {
  font-size: 1.65rem;
  font-weight: 700;
  margin-bottom: 20px;
  color: var(--heading);
}

.hero-text p {
  font-size: 0.97rem;
  color: var(--text);
  margin-bottom: 14px;
}

.hero-photo {
  width: 200px;
  height: 200px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
  border: 3px solid var(--border);
  margin-top: 6px;
  box-shadow: 0 4px 24px rgba(0,0,0,0.08);
}

.hero-links {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 16px;
  border-top: 1px solid var(--border);
  padding-top: 14px;
}
.hero-links a {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 0.83rem;
  color: var(--text-muted);
  padding: 4px 10px;
  border: 1px solid var(--border);
  border-radius: 20px;
  text-decoration: none;
  transition: border-color 0.15s, color 0.15s;
}
.hero-links a:hover { color: var(--link); border-color: var(--link); text-decoration: none; }

/* ================================================================
   STATS BANNER
   ================================================================ */
.stats-banner {
  display: flex;
  flex-direction: column;
  margin: 0 -24px 4px;
  padding: 0;
  background: var(--bg-subtle);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  position: relative;
}
.stats-row {
  display: flex;
  justify-content: space-around;
  width: 100%;
}
.stats-row:first-child {
  border-bottom: 1px solid var(--border);
}
.stats-row:last-child {
  justify-content: center;
}
.stats-row:last-child .stat-item {
  flex: 0 0 33.33%;
}
.stats-banner::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent) 0%, transparent 60%);
}
.stat-item { text-align: center; flex: 1; padding: 20px 12px; }
.stat-num {
  display: block;
  font-size: 2rem;
  font-weight: 800;
  color: var(--accent);
  line-height: 1.1;
}
.stat-label {
  display: block;
  font-size: 0.71rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.07em;
  margin-top: 4px;
}
.stat-sub {
  display: inline-block;
  font-size: 0.68rem;
  color: var(--accent);
  text-decoration: none;
  margin-top: 3px;
  font-weight: 500;
}
.stat-sub:hover { text-decoration: underline; }

/* ================================================================
   SECTION HEADINGS
   ================================================================ */
.section-title {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  border-bottom: 2px solid var(--accent);
  padding-bottom: 8px;
  margin-top: 48px;
  margin-bottom: 16px;
}

.subsection-title {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--heading);
  margin: 20px 0 8px;
}

/* ================================================================
   NEWS LIST
   ================================================================ */
.news-list { list-style: none; padding: 0; margin: 0; }
.news-list li {
  display: flex;
  gap: 14px;
  padding: 9px 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.9rem;
}
.news-list li:last-child { border-bottom: none; }
.news-date {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: var(--text-muted);
  min-width: 52px;
  padding-top: 3px;
  flex-shrink: 0;
}
.show-more-btn {
  background: none;
  border: none;
  color: var(--link);
  cursor: pointer;
  font-size: 0.83rem;
  font-family: var(--font);
  padding: 8px 0 0;
  display: inline-block;
}
.show-more-btn:hover { text-decoration: underline; }

/* ================================================================
   PUBLICATIONS
   ================================================================ */
.pub-list { list-style: none; padding: 0; margin: 0; }
.pub-item {
  padding: 13px 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.9rem;
}
.pub-item:last-child { border-bottom: none; }
.pub-title { font-weight: 600; color: var(--heading); margin-bottom: 2px; font-size: 0.93rem; }
.pub-authors { color: var(--text-muted); margin-bottom: 2px; font-size: 0.87rem; }
.pub-venue { font-style: italic; color: var(--text-muted); margin-bottom: 6px; font-size: 0.85rem; }
.pub-links { display: flex; gap: 6px; flex-wrap: wrap; }
.pub-link {
  font-size: 0.76rem;
  padding: 2px 9px;
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text-muted);
  text-decoration: none;
}
.pub-link:hover { color: var(--accent); border-color: var(--accent); text-decoration: none; }

/* ================================================================
   MEDIA & AWARDS
   ================================================================ */
.media-item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 11px 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.9rem;
}
.media-item:last-of-type { border-bottom: none; }
.media-icon {
  color: var(--accent);
  font-size: 1.05rem;
  flex-shrink: 0;
  margin-top: 3px;
  width: 22px;
  text-align: center;
}
.media-item-title { font-weight: 600; color: var(--heading); margin-bottom: 1px; }
.media-item-desc { font-size: 0.83rem; color: var(--text-muted); }

/* ================================================================
   EXPERIENCE / ITEMS
   ================================================================ */
.item {
  padding: 13px 0;
  border-bottom: 1px solid var(--border);
}
.item:last-child { border-bottom: none; }
.item-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 4px;
  margin-bottom: 5px;
}
.item-title { font-weight: 600; font-size: 0.93rem; color: var(--heading); }
.item-meta { font-size: 0.8rem; color: var(--text-muted); font-style: italic; }
.item-desc { font-size: 0.87rem; color: var(--text); }
.item-desc ul { margin: 4px 0 4px 18px; padding: 0; }
.item-desc li { margin-bottom: 4px; }

/* ================================================================
   TAGS
   ================================================================ */
.tags { display: flex; flex-wrap: wrap; gap: 5px; margin-top: 7px; }
.tag {
  font-size: 0.7rem;
  padding: 2px 7px;
  border-radius: 12px;
  background: var(--tag-bg);
  color: var(--tag-text);
  border: 1px solid var(--tag-border);
  font-family: var(--font-mono);
}

/* ================================================================
   HACKATHON & TESTIMONIAL GRIDS
   ================================================================ */
.hackathon-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 10px; margin: 10px 0; }
.hackathon-card {
  background: var(--bg-subtle);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: 0 5px 5px 0;
  padding: 11px 13px;
  font-size: 0.86rem;
}
.hackathon-card strong { display: block; margin-bottom: 3px; color: var(--heading); }
.hackathon-card span { color: var(--text-muted); font-size: 0.8rem; }

.testimonial-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(270px, 1fr)); gap: 12px; margin: 10px 0; }
.testimonial-card {
  background: var(--bg-subtle);
  border: 1px solid var(--border);
  border-radius: 7px;
  padding: 15px;
  font-size: 0.86rem;
  font-style: italic;
}
.testimonial-author { margin-top: 10px; font-style: normal; font-weight: 600; font-size: 0.84rem; color: var(--heading); }
.testimonial-role { font-size: 0.76rem; color: var(--text-muted); font-style: normal; }

/* ================================================================
   FEATURED PROJECTS (homepage preview)
   ================================================================ */
.featured-projects {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin: 12px 0 8px;
}
.feat-proj-card {
  display: block;
  background: var(--bg-subtle);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 14px 16px;
  text-decoration: none;
  color: inherit;
  transition: border-color 0.15s, box-shadow 0.15s, transform 0.15s;
}
.feat-proj-card:hover {
  border-color: var(--accent);
  box-shadow: 0 3px 16px rgba(0,0,0,0.07);
  transform: translateY(-2px);
  text-decoration: none;
  color: inherit;
}
.feat-proj-card .feat-title {
  font-weight: 600;
  font-size: 0.92rem;
  color: var(--heading);
  margin-bottom: 5px;
}
.feat-proj-card .feat-desc {
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* ================================================================
   MISCELLANEOUS / HOBBIES
   ================================================================ */
.hobbies-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 8px 0 16px;
}
.hobby-tag {
  background: var(--bg-subtle);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 5px 14px;
  font-size: 0.86rem;
  color: var(--text);
}

/* ================================================================
   BACK TO TOP BUTTON
   ================================================================ */
#back-to-top {
  position: fixed;
  bottom: 28px;
  right: 28px;
  width: 40px;
  height: 40px;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 50%;
  font-size: 0.9rem;
  cursor: pointer;
  opacity: 0;
  pointer-events: none;
  z-index: 500;
  box-shadow: 0 2px 12px rgba(0,0,0,0.25);
  transition: opacity 0.25s, transform 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
}
#back-to-top.visible { opacity: 1; pointer-events: auto; }
#back-to-top:hover { transform: translateY(-2px); }

/* ================================================================
   PROJECTS PAGE
   ================================================================ */
.projects-grid { display: grid; grid-template-columns: 1fr; gap: 0; }

.project-entry {
  display: flex;
  gap: 18px;
  padding: 18px 0;
  border-bottom: 1px solid var(--border);
  text-decoration: none;
  color: inherit;
  cursor: pointer;
  transition: background 0.1s;
}
.project-entry:hover .project-title { color: var(--link); }
.project-entry:hover { text-decoration: none; }

.project-thumb {
  width: 120px;
  height: 80px;
  object-fit: cover;
  border-radius: 5px;
  flex-shrink: 0;
  border: 1px solid var(--border);
  background: var(--bg-subtle);
}
.project-thumb-placeholder {
  width: 120px;
  height: 80px;
  border-radius: 5px;
  flex-shrink: 0;
  border: 1px solid var(--border);
  background: var(--bg-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  color: var(--text-muted);
}
.project-info { flex: 1; min-width: 0; }
.project-title { font-size: 0.97rem; font-weight: 600; color: var(--heading); margin-bottom: 4px; transition: color 0.13s; }
.project-desc { font-size: 0.85rem; color: var(--text-muted); margin-bottom: 7px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.project-date { font-size: 0.75rem; color: var(--text-muted); font-family: var(--font-mono); }

/* ================================================================
   BLOG PAGE
   ================================================================ */
.blog-entry { display: flex; gap: 18px; padding: 18px 0; border-bottom: 1px solid var(--border); }
.blog-img { width: 120px; height: 80px; object-fit: cover; border-radius: 5px; flex-shrink: 0; border: 1px solid var(--border); }
.blog-info { flex: 1; min-width: 0; }
.blog-title { font-size: 0.97rem; font-weight: 600; color: var(--heading); margin-bottom: 4px; }
.blog-title a { color: inherit; text-decoration: none; }
.blog-title a:hover { color: var(--link); }
.blog-excerpt { font-size: 0.85rem; color: var(--text-muted); margin-bottom: 6px; }
.blog-date { font-size: 0.75rem; color: var(--text-muted); font-family: var(--font-mono); }
.empty-state { padding: 40px 0; color: var(--text-muted); }

/* ================================================================
   PORTFOLIO DETAIL PAGES
   ================================================================ */
.post-hero { padding: 36px 0 20px; border-bottom: 1px solid var(--border); margin-bottom: 28px; }
.post-hero-label { font-size: 0.78rem; font-family: var(--font-mono); color: var(--text-muted); margin-bottom: 10px; }
.post-hero-label a { color: var(--text-muted); }
.post-hero-label a:hover { color: var(--link); }
.post-hero h1 { font-size: 1.75rem; font-weight: 700; margin-bottom: 10px; }
.post-meta { font-size: 0.84rem; color: var(--text-muted); display: flex; gap: 14px; flex-wrap: wrap; align-items: center; }

.post-body { font-size: 0.95rem; line-height: 1.75; padding-bottom: 48px; }
.post-body h2 { font-size: 1.2rem; font-weight: 600; margin-top: 32px; margin-bottom: 10px; padding-bottom: 5px; border-bottom: 1px solid var(--border); }
.post-body p { margin-bottom: 1rem; }
.post-body ul { padding-left: 20px; margin-bottom: 1rem; }
.post-body li { margin-bottom: 4px; }
.post-body img { border-radius: 6px; margin: 18px 0; border: 1px solid var(--border); }
.post-body .video-wrap { position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden; border-radius: 6px; margin: 18px 0; border: 1px solid var(--border); }
.post-body .video-wrap iframe { position: absolute; top: 0; left: 0; width: 100%; height: 100%; border: none; }
.post-body code { font-family: var(--font-mono); font-size: 0.85em; background: var(--bg-subtle); padding: 2px 5px; border-radius: 3px; border: 1px solid var(--border); }

.img-gallery { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 10px; margin: 18px 0; }
.img-gallery img { width: 100%; height: 150px; object-fit: cover; border-radius: 5px; border: 1px solid var(--border); margin: 0; cursor: pointer; transition: opacity 0.13s; }
.img-gallery img:hover { opacity: 0.85; }

.post-nav { display: flex; justify-content: space-between; padding: 20px 0; border-top: 1px solid var(--border); margin-top: 28px; gap: 12px; }
.post-nav a { font-size: 0.85rem; color: var(--text-muted); text-decoration: none; padding: 7px 12px; border: 1px solid var(--border); border-radius: 5px; max-width: 46%; transition: border-color 0.13s, color 0.13s; }
.post-nav a:hover { color: var(--link); border-color: var(--link); text-decoration: none; }

.share-row { display: flex; align-items: center; gap: 8px; padding: 16px 0; font-size: 0.83rem; color: var(--text-muted); flex-wrap: wrap; }
.share-row a { display: inline-flex; align-items: center; gap: 5px; color: var(--text-muted); border: 1px solid var(--border); border-radius: 5px; padding: 3px 9px; font-size: 0.8rem; text-decoration: none; }
.share-row a:hover { color: var(--link); border-color: var(--link); text-decoration: none; }

.btn-github { display: inline-flex; align-items: center; gap: 8px; background: var(--bg-subtle); border: 1px solid var(--border); color: var(--heading); padding: 7px 14px; border-radius: 6px; font-size: 0.87rem; font-weight: 500; text-decoration: none; margin: 10px 0; }
.btn-github:hover { background: var(--bg-hover); border-color: var(--link); text-decoration: none; color: var(--heading); }
.btn-external { display: inline-flex; align-items: center; gap: 8px; background: var(--link); color: #fff; padding: 7px 14px; border-radius: 6px; font-size: 0.87rem; font-weight: 500; text-decoration: none; margin: 10px 0 10px 8px; }
.btn-external:hover { opacity: 0.85; text-decoration: none; color: #fff; }

/* ================================================================
   FOOTER
   ================================================================ */
.site-footer { border-top: 1px solid var(--border); padding: 32px 0; margin-top: 60px; }
.footer-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  text-align: center;
  font-size: 0.82rem;
  color: var(--text-muted);
}
.footer-icons { display: flex; gap: 16px; align-items: center; }
.footer-icons a {
  color: var(--text-muted);
  font-size: 1.2rem;
  text-decoration: none;
  transition: color 0.15s;
}
.footer-icons a:hover { color: var(--accent); text-decoration: none; }
.footer-inner a { color: var(--text-muted); }
.footer-inner a:hover { color: var(--link); }

/* ================================================================
   RECENT UPDATES — image+title+date+excerpt (like blog index)
   ================================================================ */
.update-list { list-style: none; padding: 0; margin: 0; }
.update-entry {
  display: flex;
  gap: 18px;
  padding: 20px 0;
  border-bottom: 1px solid var(--border);
  align-items: flex-start;
}
.update-entry:last-child { border-bottom: none; }
.update-thumb {
  width: 160px;
  height: 110px;
  flex-shrink: 0;
  border-radius: 7px;
  border: 1px solid var(--border);
  background: var(--bg-subtle);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
  color: var(--text-muted);
}
.update-thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }
.update-content { flex: 1; min-width: 0; }
.update-tag {
  display: inline-block;
  font-size: 0.66rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent);
  margin-bottom: 4px;
}
.update-title {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--heading);
  margin-bottom: 4px;
  line-height: 1.35;
}
.update-title a { color: var(--heading); text-decoration: none; }
.update-title a:hover { color: var(--link); text-decoration: none; }
.update-date { font-size: 0.8rem; color: var(--text-muted); margin-bottom: 7px; }
.update-excerpt { font-size: 0.86rem; color: var(--text-muted); line-height: 1.55; }

/* ================================================================
   HONOR CARDS (Academic Honors with image slots)
   ================================================================ */
.honor-list { list-style: none; padding: 0; margin: 0; }
.honor-item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 13px 0;
  border-bottom: 1px solid var(--border);
}
.honor-item:last-child { border-bottom: none; }
.honor-img {
  width: 64px;
  height: 64px;
  flex-shrink: 0;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--bg-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  overflow: hidden;
}
.honor-img img { width: 100%; height: 100%; object-fit: cover; }
.honor-body { flex: 1; }
.honor-title { font-weight: 600; font-size: 0.93rem; color: var(--heading); margin-bottom: 3px; }
.honor-desc { font-size: 0.83rem; color: var(--text-muted); }

/* ================================================================
   EXPERIENCE PAGE — timeline-style
   ================================================================ */
.exp-section { margin-bottom: 10px; }
.exp-group-label {
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 28px 0 8px;
}

/* ================================================================
   MEDIA CARDS (talks, podcast, conference)
   ================================================================ */
.media-card {
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  margin-bottom: 16px;
}
.media-card-media {
  width: 100%;
  height: 220px;
  background: var(--bg-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  border-bottom: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 0.85rem;
  position: relative;
  overflow: hidden;
}
.media-card-media iframe { position: absolute; top: 0; left: 0; width: 100%; height: 100%; border: none; }
.media-card-media img { width: 100%; height: 100%; object-fit: cover; }
.media-card-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--text-muted);
}
.media-card-placeholder i { font-size: 2.2rem; opacity: 0.5; }
.media-card-body { padding: 14px 18px; }
.media-card-title { font-weight: 600; font-size: 1rem; color: var(--heading); margin-bottom: 4px; }
.media-card-desc { font-size: 0.86rem; color: var(--text-muted); margin-bottom: 0; }

/* ================================================================
   HACKATHON WIN CARDS
   ================================================================ */
.win-card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(210px, 1fr));
  gap: 14px;
  margin: 14px 0;
}
.win-card {
  background: var(--bg-subtle);
  border: 1px solid var(--border);
  border-radius: 9px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: box-shadow 0.15s, transform 0.15s;
}
.win-card:hover { box-shadow: 0 4px 18px rgba(0,0,0,0.08); transform: translateY(-2px); }
.win-card-img {
  width: 100%;
  height: 130px;
  background: var(--bg-hover);
  display: flex;
  align-items: center;
  justify-content: center;
  border-bottom: 1px solid var(--border);
  overflow: hidden;
  color: var(--text-muted);
  font-size: 2.2rem;
}
.win-card-img img { width: 100%; height: 100%; object-fit: cover; }
.win-card-body { padding: 11px 13px; flex: 1; display: flex; flex-direction: column; }
.win-card-badge {
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--accent);
  margin-bottom: 4px;
}
.win-card-title { font-weight: 600; font-size: 0.87rem; color: var(--heading); margin-bottom: 3px; line-height: 1.35; }
.win-card-meta { font-size: 0.76rem; color: var(--text-muted); margin-bottom: 8px; }
.win-card-footer {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: auto;
  padding-top: 8px;
  border-top: 1px solid var(--border);
  flex-wrap: wrap;
}
.win-tag {
  font-size: 0.66rem;
  padding: 2px 7px;
  border-radius: 10px;
  background: var(--tag-bg);
  color: var(--tag-text);
  border: 1px solid var(--tag-border);
  font-family: var(--font-mono);
}
.win-gh-link {
  margin-left: auto;
  font-size: 0.76rem;
  color: var(--text-muted);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 4px;
}
.win-gh-link:hover { color: var(--link); text-decoration: none; }

/* ================================================================
   BLOG POST PAGE
   ================================================================ */
.blog-post-hero {
  padding: 40px 0 24px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 32px;
}
.blog-post-hero .breadcrumb {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-bottom: 14px;
  font-family: var(--font-mono);
}
.blog-post-hero .breadcrumb a { color: var(--text-muted); }
.blog-post-hero .breadcrumb a:hover { color: var(--link); }
.blog-post-hero h1 { font-size: 1.9rem; font-weight: 800; line-height: 1.25; margin-bottom: 14px; }
.blog-post-meta { font-size: 0.84rem; color: var(--text-muted); display: flex; gap: 16px; flex-wrap: wrap; align-items: center; }
.blog-post-body { font-size: 0.97rem; line-height: 1.8; padding-bottom: 60px; }
.blog-post-body h2 { font-size: 1.25rem; font-weight: 700; margin-top: 36px; margin-bottom: 12px; padding-bottom: 6px; border-bottom: 1px solid var(--border); color: var(--heading); }
.blog-post-body h3 { font-size: 1.05rem; font-weight: 600; margin-top: 24px; margin-bottom: 8px; color: var(--heading); }
.blog-post-body p { margin-bottom: 1.1rem; }
.blog-post-body ul, .blog-post-body ol { padding-left: 22px; margin-bottom: 1.1rem; }
.blog-post-body li { margin-bottom: 5px; }
.blog-post-body code { font-family: var(--font-mono); font-size: 0.87em; background: var(--bg-subtle); padding: 2px 6px; border-radius: 3px; border: 1px solid var(--border); }
.blog-post-body pre { background: var(--bg-subtle); border: 1px solid var(--border); border-radius: 7px; padding: 16px 18px; overflow-x: auto; margin-bottom: 1.1rem; }
.blog-post-body pre code { background: none; border: none; padding: 0; font-size: 0.88em; }
.blog-post-body blockquote { border-left: 3px solid var(--accent); margin: 20px 0; padding: 10px 18px; background: var(--bg-subtle); border-radius: 0 7px 7px 0; color: var(--text-muted); font-style: italic; }
.blog-post-body img { border-radius: 8px; margin: 22px 0; border: 1px solid var(--border); max-width: 100%; }
.blog-post-body table { width: 100%; border-collapse: collapse; margin-bottom: 1.1rem; font-size: 0.9rem; }
.blog-post-body th { background: var(--bg-subtle); padding: 9px 12px; border: 1px solid var(--border); text-align: left; font-weight: 600; }
.blog-post-body td { padding: 8px 12px; border: 1px solid var(--border); }
.blog-post-body tr:nth-child(even) td { background: var(--bg-subtle); }
.blog-cta { background: var(--bg-subtle); border: 1px solid var(--border); border-left: 3px solid var(--accent); border-radius: 0 8px 8px 0; padding: 16px 20px; margin: 28px 0; }
.blog-cta p { margin: 0; font-size: 0.93rem; }

/* ================================================================
   RESPONSIVE
   ================================================================ */
@media (max-width: 620px) {
  :root { --max-w: 100%; }
  .hero { flex-direction: column-reverse; align-items: center; text-align: center; padding: 32px 0 24px; gap: 20px; overflow: visible; }
  .hero::after { display: none; }
  .hero-photo { width: 130px; height: 130px; }
  .hero-links { justify-content: center; }
  .header-nav { flex-wrap: wrap; }
  .item-header { flex-direction: column; }
  .stats-banner { margin: 0 0 4px; }
  .stats-row { flex-wrap: wrap; justify-content: center; }
  .stats-row:last-child .stat-item { flex: 0 0 45%; }
  .stat-item { min-width: 30%; padding: 14px 8px; }
  .featured-projects { grid-template-columns: 1fr; }
  .hackathon-grid { grid-template-columns: 1fr; }
  .testimonial-grid { grid-template-columns: 1fr; }
  .project-thumb, .project-thumb-placeholder { width: 80px; height: 56px; }
  .post-hero h1 { font-size: 1.35rem; }
  .blog-post-hero h1 { font-size: 1.4rem; }
  .win-card-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
  .media-card-media { height: 180px; }
}