/* 
 * devtint.github.io - OpenCode Minimalist CSS Design System
 * Designer: Senior Security & Web Engineer
 */

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

:root {
  /* High-Contrast Black & White Palette (OpenCode Theme) */
  --bg-page: #000000;
  --bg-card: #080808;
  --bg-card-hover: #0e0e0e;
  --border-color: #1a1a1a;
  --border-color-hover: #2d2d2d;
  
  --text-primary: #ffffff;
  --text-secondary: #a1a1aa;
  --text-muted: #52525b;
  
  --accent-white: #ffffff;
  --accent-white-hover: #e4e4e7;
  --accent-white-text: #000000;
  --accent-green: #34d399;
  --accent-green-glow: rgba(52, 211, 153, 0.1);
  
  /* Layout Tokens */
  --max-width: 1000px;
  --radius-sm: 6px;
  --radius-md: 10px;
  --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  
  /* Transitions */
  --transition-fast: 0.12s ease;
  --transition-normal: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-page);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

/* Main Layout */
.page {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 20px 24px 80px 24px;
}

/* Nav bar */
.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px 0;
  margin-bottom: 24px;
  border-bottom: 1px solid var(--border-color);
}

.nav-logo {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.nav-links a:hover {
  color: var(--text-primary);
}

/* Banner (mimics the OpenCode announcement line) */
.announcement-banner {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  margin-bottom: 48px;
  font-size: 0.85rem;
}

.announcement-badge {
  background-color: var(--accent-white);
  color: var(--accent-white-text);
  padding: 3px 8px;
  border-radius: 3px;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.75rem;
  text-transform: uppercase;
}

.announcement-text {
  color: var(--text-secondary);
}

/* Hero Section */
.hero {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 48px;
  align-items: center;
  margin-bottom: 56px;
}

@media (max-width: 768px) {
  .hero {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 32px;
  }
}

.hero-info {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.hero-info h1 {
  font-family: var(--font-mono);
  font-size: 2.75rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.15;
}

.hero-info h1 span.muted {
  font-weight: 400;
  color: var(--text-muted);
}

.lead {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 600px;
}

.meta-details {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 0.85rem;
  color: var(--text-secondary);
  flex-wrap: wrap;
}

.meta-item {
  display: flex;
  align-items: center;
  gap: 6px;
}

.meta-item svg {
  color: var(--text-muted);
  flex-shrink: 0;
}

@media (max-width: 768px) {
  .meta-details {
    justify-content: center;
  }
}

.actions {
  display: flex;
  gap: 16px;
  margin-top: 8px;
}

@media (max-width: 768px) {
  .actions {
    justify-content: center;
  }
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 20px;
  font-size: 0.9rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  font-family: var(--font-sans);
}

.btn.primary {
  background-color: var(--accent-white);
  color: var(--accent-white-text);
  border: 1px solid var(--accent-white);
}

.btn.primary:hover {
  background-color: var(--accent-white-hover);
  border-color: var(--accent-white-hover);
}

.btn.secondary {
  background-color: transparent;
  border: 1px solid var(--border-color);
  color: var(--text-primary);
}

.btn.secondary:hover {
  border-color: var(--border-color-hover);
  background-color: var(--bg-card);
}

.hero-avatar {
  position: relative;
  width: 140px;
  height: 140px;
}

@media (max-width: 768px) {
  .hero-avatar {
    margin: 0 auto;
  }
}

.avatar-img {
  width: 100%;
  height: 100%;
  border-radius: var(--radius-md);
  object-fit: cover;
  border: 1px solid var(--border-color);
  filter: grayscale(40%);
}

/* Stats Section */
.stats-bar {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  padding: 24px;
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  margin-bottom: 64px;
}

.stat-item {
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.stat-num {
  font-family: var(--font-mono);
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--text-primary);
}

.stat-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Sections Common Layout */
.section {
  margin-bottom: 64px;
}

.section h2 {
  font-family: var(--font-mono);
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 28px;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 12px;
}

.section h2::after {
  content: '';
  flex: 1;
  height: 1px;
  background-color: var(--border-color);
}

/* About me */
.about-text {
  color: var(--text-secondary);
  font-size: 1rem;
  display: flex;
  flex-direction: column;
  gap: 16px;
  max-width: 800px;
}

.about-text strong {
  color: var(--text-primary);
}

/* Projects grid */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 24px;
}

.project-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  transition: all var(--transition-normal);
  position: relative;
}

.project-card:hover {
  border-color: var(--border-color-hover);
  background-color: var(--bg-card-hover);
  transform: translateY(-1px);
}

.project-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.project-category {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-primary);
  padding: 3px 8px;
  background-color: var(--bg-page);
  border-radius: 4px;
  border: 1px solid var(--border-color);
}

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

.github-link:hover {
  color: var(--text-primary);
}

.project-card h3 {
  font-family: var(--font-mono);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
}

.project-card p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.5;
  flex-grow: 1;
}

.tech-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  list-style: none;
}

.tech-chips li {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-secondary);
  background-color: rgba(255, 255, 255, 0.03);
  padding: 2px 8px;
  border-radius: 4px;
  border: 1px solid var(--border-color);
}

.cmd-box {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background-color: #020202;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 8px 12px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent-green);
}

.cmd-text {
  overflow-x: auto;
  white-space: nowrap;
  scrollbar-width: none;
}

.cmd-text::-webkit-scrollbar {
  display: none;
}

.btn-copy {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 2px;
  display: flex;
  align-items: center;
  transition: color var(--transition-fast);
}

.btn-copy:hover {
  color: var(--text-primary);
}

/* Skills Matrix */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 20px;
}

.skills-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.skills-card h3 {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 8px;
  font-family: var(--font-sans);
}

.skills-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  list-style: none;
}

.skills-list li {
  font-size: 0.9rem;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 8px;
}

.skills-list li::before {
  content: '→';
  color: var(--text-muted);
  font-family: var(--font-mono);
}

/* Contact Links */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 16px;
}

.contact-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 16px 12px;
  display: flex;
  align-items: center;
  gap: 14px;
  transition: all var(--transition-fast);
}

.contact-card:hover {
  border-color: var(--border-color-hover);
  background-color: var(--bg-card-hover);
}

.contact-icon {
  font-size: 1.2rem;
  color: var(--text-secondary);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
  overflow: hidden;
}

.contact-title {
  font-size: 0.75rem;
  text-transform: uppercase;
  color: var(--text-muted);
  letter-spacing: 0.05em;
  font-weight: 600;
}

.contact-value {
  font-size: 0.85rem;
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  color: var(--text-primary);
}

/* Footer */
.footer {
  text-align: center;
  padding: 40px 0 0 0;
  border-top: 1px solid var(--border-color);
  color: var(--text-muted);
  font-size: 0.8rem;
  font-family: var(--font-mono);
}

.footer a {
  color: var(--text-secondary);
}

.footer a:hover {
  color: var(--text-primary);
}

/* Light Theme Variables */
body.light-theme {
  --bg-page: #ffffff;
  --bg-card: #f8f9fa;
  --bg-card-hover: #f1f3f5;
  --border-color: #e9ecef;
  --border-color-hover: #dee2e6;
  
  --text-primary: #000000;
  --text-secondary: #495057;
  --text-muted: #868e96;
  
  --accent-white: #000000;
  --accent-white-hover: #212529;
  --accent-white-text: #ffffff;
}

/* Theme Toggle Button */
.theme-toggle-btn {
  background: none;
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.theme-toggle-btn:hover {
  color: var(--text-primary);
  background-color: var(--bg-card);
  border-color: var(--border-color-hover);
}

body .moon-icon {
  display: none;
}

body .sun-icon {
  display: block;
}

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

body.light-theme .moon-icon {
  display: block;
}