/* ===== RESET & BASE ===== */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --bg: #0e1117;
  --bg-card: #161b22;
  --bg-code: #1c2129;
  --border: #30363d;
  --text: #c9d1d9;
  --text-dim: #8b949e;
  --accent: #58a6ff;
  --accent-hover: #79c0ff;
  --green: #3fb950;
  --orange: #d29922;
  --purple: #bc8cff;
  --font-mono: "JetBrains Mono", "Fira Code", "Cascadia Code", "Source Code Pro", monospace;
  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --max-width: 780px;
}

html {
  scroll-behavior: smooth;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.7;
  min-height: 100vh;
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: color 0.2s;
}

a:hover {
  color: var(--accent-hover);
  text-decoration: underline;
}

/* ===== LAYOUT ===== */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ===== NAV ===== */
nav {
  border-bottom: 1px solid var(--border);
  padding: 1rem 0;
  position: sticky;
  top: 0;
  background: var(--bg);
  z-index: 100;
  backdrop-filter: blur(8px);
  background: rgba(14, 17, 23, 0.85);
}

nav .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

nav .logo {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  color: var(--green);
  font-weight: 700;
}

nav .logo .cursor {
  animation: blink 1s step-end infinite;
  color: var(--accent);
}

@keyframes blink {
  50% { opacity: 0; }
}

nav ul {
  display: flex;
  list-style: none;
  gap: 1.5rem;
}

nav ul a {
  color: var(--text-dim);
  font-size: 0.9rem;
  font-family: var(--font-mono);
  transition: color 0.2s;
}

nav ul a:hover {
  color: var(--accent);
  text-decoration: none;
}

/* ===== HERO ===== */
.hero {
  padding: 5rem 0 3rem;
  border-bottom: 1px solid var(--border);
}

.hero .greeting {
  font-size: 1.8rem;
  margin-bottom: 0.5rem;
}

.hero h1 {
  font-size: 2.8rem;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 1rem;
  color: #f0f6fc;
}

.hero h1 .highlight {
  color: var(--accent);
}

.hero .tagline {
  font-size: 1.15rem;
  color: var(--text-dim);
  max-width: 560px;
  margin-bottom: 1.5rem;
}

.hero .contact-links {
  margin-top: 0;
}

.tag {
  display: inline-block;
  background: var(--bg-code);
  border: 1px solid var(--border);
  color: var(--text-dim);
  padding: 0.25rem 0.65rem;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
}

.tag.accent {
  border-color: rgba(88, 166, 255, 0.3);
  color: var(--accent);
}

/* ===== SECTION COMMON ===== */
section {
  padding: 3.5rem 0;
}

section h2 {
  font-family: var(--font-mono);
  font-size: 1.3rem;
  color: var(--purple);
  margin-bottom: 0.3rem;
}

.section-rule {
  border: none;
  border-top: 1px solid var(--border);
  margin-bottom: 1.5rem;
}

/* ===== ABOUT ===== */
.about p {
  color: var(--text);
  max-width: 620px;
}

.about .terminal-block {
  background: var(--bg-code);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1.25rem 1.5rem;
  margin-top: 1.25rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  line-height: 1.8;
  overflow-x: auto;
}

.about .terminal-block .prompt {
  color: var(--green);
}

.about .terminal-block .cmd {
  color: var(--text);
}

.about .terminal-block .output {
  color: var(--text-dim);
}

/* ===== PROJECTS ===== */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 1rem;
}

.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1.25rem 1.5rem;
  transition: border-color 0.2s, transform 0.2s;
}

.project-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}

.project-card h3 {
  font-size: 1.05rem;
  color: #f0f6fc;
  margin-bottom: 0.4rem;
}

.project-card h3 a {
  color: inherit;
}

.project-card h3 a:hover {
  color: var(--accent);
  text-decoration: none;
}

.project-card p {
  font-size: 0.9rem;
  color: var(--text-dim);
  margin-bottom: 0.75rem;
}

.project-card .tags {
  display: flex;
  gap: 0.4rem;
  flex-wrap: wrap;
}

.project-card .tags .tag {
  font-size: 0.72rem;
  padding: 0.15rem 0.5rem;
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
}

.view-all {
  font-family: var(--font-mono);
  font-size: 0.85rem;
}

/* ===== BLOG ===== */
.blog-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.blog-entry {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1.25rem 1.5rem;
  transition: border-color 0.2s;
}

.blog-entry:hover {
  border-color: var(--accent);
}

.blog-entry .meta {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-dim);
  margin-bottom: 0.3rem;
}

.blog-entry h3 {
  font-size: 1.05rem;
  margin-bottom: 0.3rem;
}

.blog-entry h3 a {
  color: #f0f6fc;
}

.blog-entry h3 a:hover {
  color: var(--accent);
}

.blog-entry .excerpt {
  font-size: 0.9rem;
  color: var(--text-dim);
}

.blog-entry .read-more {
  display: inline-block;
  margin-top: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.82rem;
}

.blog-entry .read-more::after {
  content: " ->";
}

/* ===== CONTACT ===== */
.contact-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 0.5rem;
}

.contact-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.6rem 1rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text);
  transition: border-color 0.2s, color 0.2s;
}

.contact-link:hover {
  border-color: var(--accent);
  color: var(--accent);
  text-decoration: none;
}

.contact-link svg {
  width: 18px;
  height: 18px;
  fill: currentColor;
  flex-shrink: 0;
}

/* ===== FOOTER ===== */
footer {
  border-top: 1px solid var(--border);
  padding: 2rem 0;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-dim);
}

/* ===== BLOG POST PAGE ===== */
.post-header {
  padding: 3.5rem 0 1.5rem;
  border-bottom: 1px solid var(--border);
}

.post-header .back {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  display: inline-block;
  margin-bottom: 1rem;
}

.post-header .back::before {
  content: "<- ";
}

.post-header h1 {
  font-size: 2rem;
  font-weight: 800;
  color: #f0f6fc;
  line-height: 1.3;
  margin-bottom: 0.5rem;
}

.post-header .meta {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--text-dim);
}

.post-content {
  padding-top: 2.5rem;
  padding-bottom: 4rem;
}

.post-content h2 {
  font-family: var(--font-sans);
  font-size: 1.4rem;
  color: #f0f6fc;
  margin: 2rem 0 0.75rem;
}

.post-content p {
  margin-bottom: 1.1rem;
  color: var(--text);
}

.post-content code {
  background: var(--bg-code);
  border: 1px solid var(--border);
  padding: 0.15rem 0.4rem;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 0.88em;
  color: var(--orange);
}

.post-content pre {
  background: var(--bg-code);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1.25rem 1.5rem;
  margin: 1.25rem 0;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  line-height: 1.6;
}

.post-content pre code {
  background: none;
  border: none;
  padding: 0;
  color: var(--text);
}

.post-content img {
  max-width: 100%;
  height: auto;
  border-radius: 8px;
  margin: 1.25rem 0;
}

.post-content blockquote {
  border-left: 3px solid var(--accent);
  padding-left: 1rem;
  margin: 1.25rem 0;
  color: var(--text-dim);
  font-style: italic;
}

.post-content ul, .post-content ol {
  margin: 1rem 0;
  padding-left: 1.5rem;
}

.post-content li {
  margin-bottom: 0.4rem;
}

/* ===== AI ASSISTED BADGE & CALLOUT ===== */
.ai-badge {
  display: inline-block;
  background: rgba(188, 140, 255, 0.1);
  border: 1px solid rgba(188, 140, 255, 0.3);
  color: var(--purple);
  padding: 0.15rem 0.5rem;
  border-radius: 4px;
  font-size: 0.72rem;
  margin-left: 0.5rem;
  vertical-align: middle;
}

a.ai-badge:hover {
  color: var(--purple);
  text-decoration: none;
  background: rgba(188, 140, 255, 0.18);
}

.ai-callout {
  margin-top: 2rem;
  padding: 1rem 1.25rem;
  background: rgba(188, 140, 255, 0.05);
  border: 1px solid rgba(188, 140, 255, 0.2);
  border-radius: 8px;
}

.ai-callout-label {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--purple);
  margin-bottom: 0.4rem;
}

.ai-callout p {
  font-size: 0.9rem;
  color: var(--text-dim);
  margin-bottom: 0;
}

/* ===== ABOUT PAGE ===== */
.content-page {
  padding-top: 3.5rem;
  padding-bottom: 4rem;
}

.content-page h1 {
  font-family: var(--font-mono);
  font-size: 1.8rem;
  color: var(--purple);
  margin-bottom: 1.5rem;
}

.content-page p {
  margin-bottom: 1.1rem;
}

/* ===== PAGINATION ===== */
.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 1.5rem;
  margin-top: 2rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
}

.pagination-link {
  color: var(--accent);
}

.pagination-link.disabled {
  color: var(--text-dim);
  opacity: 0.4;
}

.pagination-info {
  color: var(--text-dim);
}

/* ===== PROJECTS PAGE ===== */
.projects-page {
  padding: 3.5rem 0 4rem;
}

.projects-page h1 {
  font-family: var(--font-mono);
  font-size: 1.8rem;
  color: var(--purple);
  margin-bottom: 1.5rem;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 600px) {
  .hero h1 {
    font-size: 2rem;
  }

  .projects-grid {
    grid-template-columns: 1fr;
  }

  nav ul {
    gap: 1rem;
  }

  .contact-links {
    flex-direction: column;
  }

  .content-page {
    padding-top: 2.5rem;
    padding-bottom: 3rem;
  }

  .post-header {
    padding-top: 2.5rem;
    padding-bottom: 1.25rem;
  }

  .post-content {
    padding-top: 2rem;
    padding-bottom: 3rem;
  }

  .blog-entry {
    padding: 1rem 1.15rem;
  }

  footer .footer-sep {
    display: block;
    height: 0.35rem;
  }

  footer .footer-sep::before {
    content: none;
  }
}