@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

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

:root {
  --bg-light: #fafafa;
  --bg-dark: #1a1a1a;
  --text-light: #333;
  --text-dark: #e0e0e0;
  --accent: #4f46e5;
  --accent-hover: #4338ca;
  --card-light: #ffffff;
  --card-dark: #2a2a2a;
  --border-light: #eee;
  --border-dark: #333;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  line-height: 1.6;
  background: var(--bg-light);
  color: var(--text-light);
  transition: all 0.3s ease;
  min-height: 100vh;
  position: relative;
}

/* Breathing background */
body::before {
  content: '';
  position: fixed;
  top: 50%; left: 50%;
  width: 200%; height: 200%;
  background:
    radial-gradient(circle at 50% 30%, rgba(79, 70, 229, 0.17) 0%, transparent 40%),
    radial-gradient(circle at 70% 70%, rgba(147, 51, 234, 0.17) 0%, transparent 40%),
    radial-gradient(circle at 30% 70%, rgba(79, 70, 229, 0.17) 0%, transparent 40%);
  animation: breathe 4s ease-in-out infinite, rotate 30s linear infinite;
  pointer-events: none;
  z-index: 1;
  transform-origin: center center;
  transform: translate(-50%, -50%);
}

@keyframes breathe {
  0%, 100% { opacity: 0.6; }
  50% { opacity: 1; }
}

@keyframes rotate {
  from { transform: translate(-50%, -50%) rotate(0deg) scale(0.95); }
  50% { transform: translate(-50%, -50%) rotate(180deg) scale(1.05); }
  to { transform: translate(-50%, -50%) rotate(360deg) scale(0.95); }
}

body.dark {
  background: var(--bg-dark);
  color: var(--text-dark);
}

/* Keep content above the breathing background */
header, main { position: relative; z-index: 10; }
.theme-toggle, .back-to-top, .lightbox { z-index: 2001; }
body.lightbox-open .theme-toggle, body.lightbox-open .back-to-top { display: none; }

.theme-toggle {
  position: fixed;
  top: 2rem; right: 2rem;
  background: var(--accent);
  color: white;
  border: none;
  padding: 0.75rem;
  border-radius: 50%;
  cursor: pointer;
  transition: all 0.3s ease;
  font-size: 1.2rem;
}
.theme-toggle:hover { background: var(--accent-hover); transform: scale(1.1); }

header { text-align: center; padding: 4rem 2rem 2rem; }

h1 { font-size: 2.5rem; font-weight: 300; margin-bottom: 0.5rem; }
h1 a { color: inherit; text-decoration: none; }
h1 a:hover { color: var(--accent); }

.subtitle {
  font-size: 1.3rem;
  color: #666;
  margin-bottom: 2rem;
  font-family: 'JetBrains Mono', monospace;
  height: 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
}
body.dark .subtitle { color: #999; }

.focus-text {
  position: relative;
  color: var(--text-light);
  font-weight: 500;
  transition: all 0.3s ease;
}
body.dark .focus-text { color: var(--text-dark); }
.focus-text.focusing { filter: blur(3px); transform: scale(1.05); opacity: 0.7; }
.focus-text.focus-hunt { animation: focusHunt 0.8s ease-in-out forwards; }

@keyframes focusHunt {
  0%   { filter: blur(4px);   transform: scale(0.95); opacity: 0.6; }
  25%  { filter: blur(1px);   transform: scale(1.02); opacity: 0.9; }
  50%  { filter: blur(3px);   transform: scale(0.98); opacity: 0.7; }
  75%  { filter: blur(0.5px); transform: scale(1.01); opacity: 0.95; }
  100% { filter: blur(0px);   transform: scale(1);    opacity: 1; }
}

nav { display: flex; justify-content: center; gap: 0; }

.tab-btn {
  background: transparent;
  border: none;
  padding: 1rem 2rem;
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-light);
  cursor: pointer;
  transition: all 0.3s ease;
  border-bottom: 3px solid transparent;
}
body.dark .tab-btn { color: var(--text-dark); }
.tab-btn:hover { background: rgba(59, 130, 246, 0.1); }
.tab-btn.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
  background: rgba(59, 130, 246, 0.05);
}

main { max-width: 1200px; margin: 0 auto; padding: 3rem 2rem; }

.tab-content { display: none; }
.tab-content.active { display: block; animation: slideInRight 0.4s ease forwards; }
.tab-content.active.slide-left { animation: slideInLeft 0.4s ease forwards; }

@keyframes slideInRight {
  from { opacity: 0; transform: translateX(30px); }
  to   { opacity: 1; transform: translateX(0); }
}
@keyframes slideInLeft {
  from { opacity: 0; transform: translateX(-30px); }
  to   { opacity: 1; transform: translateX(0); }
}

/* About */
.about-content { max-width: 700px; margin: 0 auto; font-size: 1.1rem; line-height: 1.8; }
.about-hero { display: flex; align-items: center; gap: 3rem; margin-bottom: 3rem; }
.about-photo {
  flex-shrink: 0;
  width: 200px; height: 200px;
  border-radius: 50%;
  overflow: hidden;
  box-shadow: 0 8px 30px rgba(0,0,0,0.15);
  position: relative;
}
body.dark .about-photo { box-shadow: 0 8px 30px rgba(0,0,0,0.3); }
.about-photo img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.3s ease; }
.about-photo:hover img { transform: scale(1.05); }
.about-photo::before {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(45deg, rgba(79, 70, 229, 0.1), rgba(147, 51, 234, 0.1));
  border-radius: 50%;
  opacity: 0;
  transition: opacity 0.3s ease;
}
.about-photo:hover::before { opacity: 1; }
.about-intro { flex: 1; }
.about-intro h2 { color: var(--accent); font-size: 1.8rem; margin-bottom: 1rem; font-weight: 500; }
.about-intro .intro-text { font-size: 1.2rem; color: #666; line-height: 1.6; margin-bottom: 0; }
body.dark .about-intro .intro-text { color: #ccc; }
.about-content p { margin-bottom: 1.5rem; }
.about-content h3 { margin: 2rem 0 1rem 0; color: var(--accent); font-size: 1.3rem; }

/* Blog */
.blog-posts { display: grid; gap: 2rem; max-width: 800px; margin: 0 auto; }
.blog-post {
  background: var(--card-light);
  padding: 2rem;
  border-radius: 12px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.1);
  transition: all 0.3s ease;
}
body.dark .blog-post { background: var(--card-dark); box-shadow: 0 4px 20px rgba(0,0,0,0.3); }
.blog-post:hover { transform: translateY(-2px); }
.blog-post h3 { color: var(--accent); margin-bottom: 0.5rem; font-size: 1.4rem; }
.blog-post h3 a { color: inherit; text-decoration: none; }
.blog-date { color: #666; font-size: 0.9rem; margin-bottom: 1rem; }
body.dark .blog-date { color: #999; }
.blog-cat {
  display: inline-block; margin-left: 0.6rem; padding: 0.1rem 0.55rem;
  font-size: 0.72rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.03em;
  color: var(--accent); border: 1px solid var(--accent); border-radius: 999px; vertical-align: middle;
}
.read-more { color: var(--accent); font-weight: 500; text-decoration: none; }

/* Photography masonry */
.photo-masonry { column-count: 3; column-gap: 1.5rem; margin-top: 2rem; }
@media (max-width: 1024px) { .photo-masonry { column-count: 2; } }
@media (max-width: 768px)  { .photo-masonry { column-count: 1; } }

.photo-item {
  break-inside: avoid;
  margin-bottom: 1.5rem;
  cursor: pointer;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
  border-radius: 12px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.1);
}
body.dark .photo-item { box-shadow: 0 4px 20px rgba(0,0,0,0.3); }
.photo-item:hover { transform: translateY(-5px); box-shadow: 0 8px 30px rgba(0,0,0,0.15); }
body.dark .photo-item:hover { box-shadow: 0 8px 30px rgba(0,0,0,0.4); }
.photo-item img { width: 100%; display: block; object-fit: cover; }
.photo-item.size-small img  { height: 250px; }
.photo-item.size-medium img { height: 350px; }
.photo-item.size-large img  { height: 450px; }

.photo-overlay {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  background: linear-gradient(transparent, rgba(0,0,0,0.8));
  color: white;
  padding: 2rem 1.5rem 1.5rem;
  transform: translateY(100%);
  transition: transform 0.3s ease;
}
.photo-item:hover .photo-overlay { transform: translateY(0); }
.photo-title { font-weight: 600; font-size: 1rem; margin-bottom: 0.5rem; }
.photo-specs { font-size: 0.85rem; font-family: 'JetBrains Mono', monospace; opacity: 0.9; }
.photo-location { font-size: 0.85rem; opacity: 0.85; margin-top: 0.25rem; }

/* Lightbox */
.lightbox {
  position: fixed; inset: 0;
  background: rgba(0, 0, 0, 0.95);
  z-index: 2000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}
.lightbox.active { display: flex; animation: fadeIn 0.3s ease; }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
.lightbox-content {
  position: relative;
  display: flex; flex-direction: column; align-items: center;
  max-width: 95vw; max-height: 95vh;
}
.lightbox-image {
  display: flex; align-items: center; justify-content: center;
  color: white; font-size: 1.2rem;
}
.lightbox-image > img {
  max-width: 95vw; max-height: 82vh;
  width: auto; height: auto;
  object-fit: contain; border-radius: 8px; display: block;
}
.lightbox-close {
  position: fixed; top: 1rem; right: 1.5rem;
  background: none; border: none; color: white;
  font-size: 2.5rem; line-height: 1; cursor: pointer; padding: 0.25rem 0.75rem;
  transition: all 0.3s ease; z-index: 2002;
}
.lightbox-close:hover { transform: scale(1.2); opacity: 0.8; }
.lightbox-info { margin-top: 1rem; color: white; text-align: center; max-width: 90vw; }
.lightbox-title { font-size: 1.2rem; font-weight: 600; margin-bottom: 0.5rem; }
.lightbox-specs { font-family: 'JetBrains Mono', monospace; font-size: 0.85rem; opacity: 0.9; margin-bottom: 0.25rem; }
.lightbox-location { font-size: 0.9rem; opacity: 0.8; font-style: italic; }

/* Filter buttons */
.filter-buttons { display: flex; justify-content: center; gap: 1rem; margin-bottom: 2rem; flex-wrap: wrap; }
.filter-btn {
  background: transparent;
  border: 2px solid var(--accent);
  color: var(--accent);
  padding: 0.5rem 1rem;
  border-radius: 25px;
  cursor: pointer;
  transition: all 0.3s ease;
  font-weight: 500;
}
.filter-btn:hover, .filter-btn.active { background: var(--accent); color: white; }

/* Projects grid */
.projects-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 2rem; margin-top: 2rem; }
.project-card {
  background: var(--card-light);
  border-radius: 12px;
  overflow: hidden;
  transition: all 0.3s ease;
  box-shadow: 0 4px 20px rgba(0,0,0,0.1);
  cursor: pointer;
  text-decoration: none;
  color: inherit;
  display: block;
  position: relative;
}
body.dark .project-card { background: var(--card-dark); box-shadow: 0 4px 20px rgba(0,0,0,0.3); }
.project-card:hover { transform: translateY(-5px); box-shadow: 0 8px 30px rgba(0,0,0,0.15); text-decoration: none; color: inherit; }
body.dark .project-card:hover { box-shadow: 0 8px 30px rgba(0,0,0,0.4); }
.card-image { width: 100%; height: 250px; display: flex; align-items: center; justify-content: center; color: white; font-size: 1.1rem; font-weight: 600; position: relative; text-align: center; padding: 1rem; }
.card-content { padding: 1.5rem; }
.card-title { font-weight: 600; font-size: 1.1rem; margin-bottom: 0.5rem; }
.card-description { font-size: 0.95rem; color: #666; line-height: 1.4; margin-bottom: 1rem; }
body.dark .card-description { color: #999; }

/* Category gradients */
.project-cloud { background: linear-gradient(135deg, #4f46e5, #06b6d4); }
.project-web   { background: linear-gradient(135deg, #a8edea, #fed6e3); color: #333; }
.project-tools { background: linear-gradient(135deg, #d299c2, #fef9d7); color: #333; }

/* Tech icons */
.tech-icon { display: inline-flex; align-items: center; gap: 0.3rem; background: rgba(59, 130, 246, 0.1); color: var(--accent); padding: 0.3rem 0.6rem; border-radius: 12px; font-size: 0.75rem; font-weight: 500; }
.tech-icon::before { content: ''; width: 12px; height: 12px; border-radius: 2px; background: var(--accent); }
.project-tech { display: flex; gap: 0.5rem; flex-wrap: wrap; margin-top: 0.5rem; }

/* Project status */
.project-status { position: absolute; top: 1rem; right: 1rem; padding: 0.25rem 0.6rem; border-radius: 12px; font-size: 0.7rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.5px; }
.status-completed { background: rgba(34, 197, 94, 0.2); color: #16a34a; border: 1px solid rgba(34, 197, 94, 0.3); }
.status-progress  { background: rgba(251, 191, 36, 0.2); color: #d97706; border: 1px solid rgba(251, 191, 36, 0.3); }
.status-planning  { background: rgba(147, 51, 234, 0.2); color: #9333ea; border: 1px solid rgba(147, 51, 234, 0.3); }

/* Resume */
.download-btn {
  display: inline-flex; align-items: center; gap: 0.5rem;
  background: var(--accent); color: white;
  text-decoration: none; padding: 0.75rem 1.5rem;
  border-radius: 8px; font-weight: 500;
  transition: all 0.3s ease; border: none; cursor: pointer;
}
.download-btn:hover { background: var(--accent-hover); transform: translateY(-1px); color: white; }

.resume { max-width: 920px; margin: 0 auto; }
.resume-toolbar {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem; flex-wrap: wrap; margin-bottom: 1rem;
}
.resume-note { color: #666; margin: 0; }
body.dark .resume-note { color: #999; }
.resume-embed {
  width: 100%; height: 85vh; min-height: 500px;
  border: 1px solid rgba(128,128,128,0.3); border-radius: 8px; overflow: hidden;
  background: #f5f5f5;
}
.resume-embed iframe { width: 100%; height: 100%; border: 0; display: block; }
.resume-fallback { text-align: center; color: #666; font-size: 0.9rem; margin: 1rem 0 0; }
body.dark .resume-fallback { color: #999; }

/* Contact */
.contact-content { max-width: 600px; margin: 0 auto; text-align: center; }
.contact-links { display: flex; justify-content: center; gap: 2rem; margin: 2rem 0; flex-wrap: wrap; }
.contact-link {
  display: flex; align-items: center; gap: 0.5rem;
  color: var(--accent); text-decoration: none; font-weight: 500; font-size: 1rem;
  padding: 0.75rem 1.5rem; border: 2px solid var(--accent); border-radius: 8px;
  background: none; cursor: pointer; font-family: inherit;
  transition: all 0.3s ease;
}
.contact-link:hover { background: var(--accent); color: white; text-decoration: none; }

.email-banner {
  display: flex; align-items: center; justify-content: center; gap: 0.75rem;
  max-width: 420px; margin: 0 auto 2rem;
  padding: 0.75rem 1rem; border: 2px solid var(--accent); border-radius: 8px;
  background: rgba(79, 70, 229, 0.06);
}
.email-banner[hidden] { display: none; }
.email-banner.show { animation: fadeIn 0.3s ease; }
.email-banner-label { font-size: 1.1rem; }
.email-banner-address { font-weight: 600; color: var(--accent); word-break: break-all; }
.email-copy-btn {
  padding: 0.4rem 0.9rem; border: none; border-radius: 6px; cursor: pointer;
  background: var(--accent); color: white; font-weight: 500; font-family: inherit;
  transition: background 0.3s ease;
}
.email-copy-btn:hover { background: var(--accent-dark, #4338ca); }
.email-copy-btn.copied { background: #16a34a; }

/* Single post page */
.post-page { max-width: 800px; margin: 0 auto; }
.back-link { display: inline-block; margin-bottom: 1.5rem; color: var(--accent); font-weight: 500; text-decoration: none; }
.post-header { margin-bottom: 2rem; }
.post-title { font-size: 2.2rem; font-weight: 300; margin-bottom: 0.5rem; }
.post-meta { color: #666; font-size: 0.9rem; }
body.dark .post-meta { color: #999; }
.post-content { font-size: 1.05rem; line-height: 1.8; }
.post-content h2 { color: var(--accent); margin: 2rem 0 1rem; }
.post-content ul { padding-left: 1.5rem; margin-bottom: 1.5rem; }
.post-content p { margin-bottom: 1.5rem; }
.section-lead { color: #666; margin-bottom: 2rem; }
body.dark .section-lead { color: #999; }
.section-title { font-weight: 300; margin-bottom: 1rem; }
.empty-state { text-align: center; padding: 3rem 0; }

/* Back to top */
.back-to-top {
  position: fixed; bottom: 2rem; right: 2rem;
  background: var(--accent); color: white; border: none;
  width: 50px; height: 50px; border-radius: 50%;
  cursor: pointer; transition: all 0.3s ease; font-size: 1.2rem;
  opacity: 0; transform: translateY(20px);
}
.back-to-top.visible { opacity: 1; transform: translateY(0); }
.back-to-top:hover { background: var(--accent-hover); transform: translateY(-3px); box-shadow: 0 5px 15px rgba(59, 130, 246, 0.3); }

/* Responsive */
@media (max-width: 768px) {
  .about-hero { flex-direction: column; text-align: center; gap: 2rem; }
  .about-photo { width: 150px; height: 150px; }
  h1 { font-size: 2rem; }
  .tab-btn { padding: 0.75rem 1rem; font-size: 0.9rem; }
  nav { flex-wrap: wrap; justify-content: center; }
  .contact-links { flex-direction: column; align-items: center; }
  .projects-grid { grid-template-columns: 1fr; }
  main { padding: 2rem 1rem; }
  header { padding: 3rem 1rem 2rem; }
}