/* Mobile-first, modern styles with your palette */

/* Color system */
:root {
  --primary: #2563eb; /* Deep Neon Blue */
  --secondary: #06b6d4; /* Modern Turquoise */
  --accent: #f97316; /* Warm Orange */
  --bg: #f9fafb; /* Warm Light Gray */
  --surface: #ffffff;
  --text: #1f2937; /* Readable Dark Gray */
  --text-2: #6b7280; /* Medium Gray */
  --success: #10b981; /* Vibrant Green */
  --error: #ef4444; /* Coral Red */
  --border: #e5e7eb;
  --radius: 12px;
  --shadow: 0 8px 24px rgba(2, 6, 23, 0.06);
  --shadow-sm: 0 2px 8px rgba(2, 6, 23, 0.06);
  color-scheme: light;
}

:root[data-theme="light"] {
  --primary: #2563eb;
  --secondary: #06b6d4;
  --accent: #f97316;
  --bg: #f9fafb;
  --surface: #ffffff;
  --text: #1f2937;
  --text-2: #6b7280;
  --success: #10b981;
  --error: #ef4444;
  --border: #e5e7eb;
  --shadow: 0 8px 24px rgba(2, 6, 23, 0.06);
  --shadow-sm: 0 2px 8px rgba(2, 6, 23, 0.06);
  color-scheme: light;
}
:root[data-theme="dark"] {
  --bg: #111827;
  --surface: #1f2937;
  --text: #f3f4f6;
  --text-2: #9ca3af;
  --border: #374151;
  --shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.25);
  color-scheme: dark;
}

/* Reset + base */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Inter,
    Arial, sans-serif;
  line-height: 1.6;
}

/* Layout container */
.container {
  width: min(100% - 2rem, 1100px);
  margin-inline: auto;
}

/* Header */
header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: var(--surface);
  color: var(--text);
  padding: 18px 0;
  text-align: center;
  border-bottom: 1px solid var(--border);
  backdrop-filter: saturate(1.2) blur(6px);
}
header h1 {
  margin: 0;
  font-weight: 700;
  letter-spacing: -0.02em;
  font-size: clamp(1.5rem, 2.5vw + 0.8rem, 2.5rem);
}
header h2 {
  margin: 4px 0 0 0;
  font-weight: 500;
  color: var(--text-2);
  font-size: clamp(1rem, 1.2vw + 0.8rem, 1.25rem);
}

/* Hero */
.hero {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 1rem;
  padding: 2rem 0;
  align-items: center;
}

/* Hero without avatar - single column layout */
.hero.no-avatar {
  grid-template-columns: 1fr;
  text-align: center;
}

#avatar {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  object-fit: cover;
  background: var(--surface);
  border: 1px solid var(--border);
}
.hero .about {
  color: var(--text-2);
}
.hero .cta {
  margin-top: 0.75rem;
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

/* Center buttons when no avatar */
.hero.no-avatar .cta {
  justify-content: center;
}

.hero.no-avatar .social-icons {
  justify-content: center;
}

/* Sections */
section {
  padding: 1.25rem 0;
}
section h3 {
  margin: 0 0 0.5rem 0;
}

/* Projects section */
.project-section {
  background: var(--surface);
  padding: 20px;
  margin: 20px 0;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}
#project-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}
.project-section h3 {
  margin: 0 0 6px 0;
  color: var(--text);
  font-size: 1.25rem;
}

/* Project cards */
.project {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 14px;
  box-shadow: var(--shadow-sm);
  transition: transform 0.15s ease, box-shadow 0.15s ease,
    border-color 0.2s ease;
}
.project:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}
.project img {
  width: 100%;
  height: auto;
  border-radius: 8px;
  display: block;
}
.project p {
  margin: 0.5rem 0;
  overflow-wrap: anywhere;
}
.project .tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 6px;
}
.project .btn {
  margin-top: 6px;
  margin-right: 6px;
}

/* Chips */
.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.chips li {
  border: 1px solid var(--border);
  padding: 0.3rem 0.6rem;
  border-radius: 999px;
  background: var(--surface);
  color: var(--text-2);
  font-size: 0.9rem;
}

/* Stack lists for experience/education */
.stack {
  display: grid;
  gap: 1rem;
}
.item {
  border: 1px solid var(--border);
  background: var(--surface);
  border-radius: var(--radius);
  padding: 1rem;
  box-shadow: var(--shadow-sm);
}
.item h4 {
  margin: 0;
}
.item .meta {
  color: var(--text-2);
  font-size: 0.95rem;
}

/* Footer */
footer {
  text-align: center;
  padding: 14px 0;
  background: var(--surface);
  color: var(--text-2);
  border-top: 1px solid var(--border);
  width: 100%;
}

/* Social icons */
.social-icons {
  list-style: none;
  padding: 0;
  margin: 8px 0 0 0;
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}
.social-icons li {
  display: inline-block;
}
.social-icons a {
  color: var(--secondary);
  text-decoration: none;
  display: inline-block;
  padding: 8px 10px;
  border-radius: 8px;
  transition: background-color 0.15s ease, color 0.15s ease;
}
.social-icons a:hover,
.social-icons a:focus-visible {
  color: #fff;
  background: var(--primary);
  outline: none;
}

/* Links */
a {
  color: var(--primary);
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}

/* Media should never overflow */
img,
video,
canvas,
svg {
  max-width: 100%;
  height: auto;
}

/* Headings */
h1,
h2,
h3,
h4 {
  line-height: 1.25;
}

/* Responsive grid for projects */
@media (min-width: 600px) {
  #project-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
  }
}
@media (min-width: 900px) {
  #project-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
  }
}

/* Utilities */
.tag {
  display: inline-block;
  padding: 0.2rem 0.55rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--text-2);
  font-size: 0.85rem;
}
.btn {
  display: inline-block;
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: 10px;
  padding: 0.6rem 0.9rem;
  box-shadow: var(--shadow-sm);
}
.btn.secondary {
  background: color-mix(in oklab, var(--secondary) 15%, var(--surface));
  color: var(--text);
  border: 1px solid var(--border);
}
.btn.accent {
  background: var(--accent);
  color: #111827;
}
.btn:focus-visible {
  outline: 2px solid var(--secondary);
  outline-offset: 2px;
}

/* Theme toggle button */
.theme-toggle {
  position: absolute;
  right: 12px;
  top: 12px;
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 6px 10px;
  line-height: 1;
  cursor: pointer;
}
.theme-toggle:hover {
  background: var(--bg);
}
.theme-toggle:focus-visible {
  outline: 2px solid var(--secondary);
  outline-offset: 2px;
}

/* Responsive tweaks */
@media (max-width: 640px) {
  .hero {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .hero .cta {
    justify-content: center;
  }
  .social-icons {
    justify-content: center;
  }
}