/* Portfolio Website - Core Styles */

:root {
  /* Light mode (default) - Navy blue accent */
  --bg: #ffffff;
  --bg-secondary: #f8fafc;
  --bg-card: #ffffff;
  --text: #0f172a;
  --text-secondary: #475569;
  --text-muted: #64748b;
  --accent: #1e3a5f;
  --accent-hover: #0f2942;
  --accent-light: #e0e7ef;
  --border: #e2e8f0;
  --border-hover: #cbd5e1;
}

[data-theme="dark"] {
  /* Dark mode - deeper blacks, navy accent */
  --bg: #030712;
  --bg-secondary: #0a0f1a;
  --bg-card: #0f172a;
  --text: #f8fafc;
  --text-secondary: #cbd5e1;
  --text-muted: #94a3b8;
  --accent: #5b8cc9;
  --accent-hover: #7ba3d6;
  --accent-light: rgba(91, 140, 201, 0.1);
  --border: #1e293b;
  --border-hover: #334155;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: -apple-system, BlinkMacSystemFont, "Inter", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background-color: var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  line-height: 1.6;
  letter-spacing: -0.01em;
  font-size: 16px;
  transition: background-color 0.3s, color 0.3s;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--text);
}

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

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

/* Theme toggle button */
.theme-toggle {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 9999px;
  padding: 0.5rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
  color: var(--text-secondary);
}

.theme-toggle:hover {
  border-color: var(--border-hover);
  color: var(--accent);
}

/* Card styles */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 1rem;
  transition: border-color 0.3s, transform 0.3s, box-shadow 0.3s;
}

.card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: 0 10px 40px -10px rgba(0, 0, 0, 0.1);
}

[data-theme="dark"] .card:hover {
  box-shadow: 0 10px 40px -10px rgba(0, 0, 0, 0.5);
}

/* Section background alternating */
.section-alt {
  background: var(--bg-secondary);
}

/* Publication type badges */
.badge {
  padding: 0.25rem 0.75rem;
  font-size: 0.875rem;
  font-weight: 500;
  border-radius: 9999px;
}

.badge-conference {
  background: rgba(37, 99, 235, 0.1);
  color: #2563eb;
  border: 1px solid rgba(37, 99, 235, 0.2);
}

.badge-journal {
  background: rgba(147, 51, 234, 0.1);
  color: #9333ea;
  border: 1px solid rgba(147, 51, 234, 0.2);
}

.badge-workshop {
  background: rgba(22, 163, 74, 0.1);
  color: #16a34a;
  border: 1px solid rgba(22, 163, 74, 0.2);
}

[data-theme="dark"] .badge-conference {
  background: rgba(96, 165, 250, 0.1);
  color: #60a5fa;
  border: 1px solid rgba(96, 165, 250, 0.3);
}

[data-theme="dark"] .badge-journal {
  background: rgba(192, 132, 252, 0.1);
  color: #c084fc;
  border: 1px solid rgba(192, 132, 252, 0.3);
}

[data-theme="dark"] .badge-workshop {
  background: rgba(74, 222, 128, 0.1);
  color: #4ade80;
  border: 1px solid rgba(74, 222, 128, 0.3);
}

/* Primary button */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 1rem 2rem;
  font-size: 1.125rem;
  font-weight: 600;
  background: var(--accent);
  color: white;
  border-radius: 0.75rem;
  transition: all 0.2s;
  border: none;
  cursor: pointer;
}

.btn-primary:hover {
  background: var(--accent-hover);
  color: white;
  transform: scale(1.02);
}

/* Secondary button */
.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 1rem 2rem;
  font-size: 1.125rem;
  font-weight: 600;
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 0.75rem;
  transition: all 0.2s;
  cursor: pointer;
}

.btn-secondary:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: scale(1.02);
}

/* Small buttons */
.btn-sm {
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
}

/* Accent text */
.text-accent {
  color: var(--accent);
}

/* Muted text */
.text-muted {
  color: var(--text-muted);
}

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

/* Eyebrow text */
.eyebrow {
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--accent);
}

/* Navigation */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(12px);
  transition: background-color 0.3s, border-color 0.3s;
}

[data-theme="dark"] .nav {
  background: rgba(3, 7, 18, 0.9);
}

/* Smooth scrolling */
html {
  scroll-behavior: smooth;
}

/* Award highlight */
.award-card {
  background: linear-gradient(135deg, var(--accent-light) 0%, transparent 100%);
  border: 1px solid var(--accent);
}

/* Profile image */
.profile-image {
  border: 4px solid var(--border);
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.15);
}

[data-theme="dark"] .profile-image {
  border-color: var(--border);
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
}

/* Email dropdown */
.email-dropdown {
  position: relative;
  display: inline-block;
}

.email-dropdown-content {
  display: none;
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  margin-top: 0.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 0.75rem;
  box-shadow: 0 10px 40px -10px rgba(0, 0, 0, 0.2);
  min-width: 200px;
  z-index: 100;
  overflow: hidden;
}

.email-dropdown.active .email-dropdown-content {
  display: block;
}

.email-dropdown-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.875rem 1rem;
  color: var(--text);
  cursor: pointer;
  transition: background 0.2s;
  border: none;
  background: none;
  width: 100%;
  text-align: left;
  font-size: 0.9375rem;
}

.email-dropdown-item:hover {
  background: var(--bg-secondary);
  color: var(--accent);
}

.email-dropdown-item + .email-dropdown-item {
  border-top: 1px solid var(--border);
}

.copy-success {
  color: #16a34a !important;
}

/* Mobile adjustments */
@media (max-width: 640px) {
  .hero-title {
    font-size: 2.5rem;
  }
}

/* Game of Life Background */
.gol-container {
  position: relative;
  overflow: hidden;
}

.gol-container #gol-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: auto;
  z-index: 0;
}

.gol-container > div {
  position: relative;
  z-index: 1;
}