:root {
  --bg-color: #020617;
  --bg-gradient: linear-gradient(135deg, #020617 0%, #0c4a6e 100%);
  --card-bg: rgba(15, 23, 42, 0.8);
  --text-color: #f8fafc;
  --text-dim: #94a3b8;
  --accent-color: #f97316;
  --accent-hover: #fb923c;
  --accent-gradient: linear-gradient(to right, #f97316, #ea580c);
  --border-color: #1e40af;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg-color: #f0f9ff;
    --bg-gradient: linear-gradient(135deg, #f0f9ff 0%, #bae6fd 100%);
    --card-bg: rgba(255, 255, 255, 0.9);
    --text-color: #0c4a6e;
    --text-dim: #075985;
    --accent-color: #ea580c;
    --accent-hover: #f97316;
    --accent-gradient: linear-gradient(to right, #ea580c, #f97316);
    --border-color: #3b82f6;
  }
}

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

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background: var(--bg-gradient);
  background-attachment: fixed;
  color: var(--text-color);
  line-height: 1.6;
  padding: 2rem;
  max-width: 1000px;
  margin: 0 auto;
  min-height: 100vh;
}

header {
  margin-bottom: 4rem;
  border-bottom: 4px solid var(--accent-color);
  padding-bottom: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.header-profile {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.profile-img {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid var(--accent-color);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

h1 { 
  font-size: 3rem; 
  font-weight: 800;
  letter-spacing: -0.02em;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 0.5rem; 
}

h2 { 
  font-size: 2rem; 
  margin-top: 2rem; 
  margin-bottom: 1.5rem; 
  color: var(--text-color);
  border-left: 6px solid var(--accent-color);
  padding-left: 1rem;
}

p { margin-bottom: 1rem; color: var(--text-color); }

nav a {
  color: var(--text-color);
  text-decoration: none;
  margin-left: 2rem;
  font-weight: 700;
  text-transform: uppercase;
  font-size: 0.9rem;
  transition: color 0.2s;
  padding: 0.5rem 1rem;
  border: 2px solid transparent;
  border-radius: 6px;
}

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

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2.5rem;
}

.card {
  background: var(--card-bg);
  backdrop-filter: blur(10px);
  padding: 2rem;
  border-radius: 16px;
  border: 1px solid var(--border-color);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: var(--accent-gradient);
  opacity: 0;
  transition: opacity 0.3s;
}

.card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.3), 0 10px 10px -5px rgba(0, 0, 0, 0.2);
  border-color: var(--accent-color);
}

.card:hover::before {
  opacity: 1;
}

.card h3 { 
  color: var(--accent-color); 
  margin-bottom: 0.75rem; 
  font-size: 1.5rem;
}

.card img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-radius: 12px;
  margin-bottom: 1.5rem;
  border: 1px solid var(--border-color);
}

.card p { font-size: 0.95rem; color: var(--text-dim); flex-grow: 1; }

.card-links {
  display: flex;
  gap: 1rem;
  margin-top: 1.5rem;
  flex-wrap: wrap;
}

.card-links a {
  display: inline-block;
  margin-top: 0;
  padding: 0.6rem 1.2rem;
  background: var(--accent-gradient);
  color: white;
  border-radius: 8px;
  font-weight: 600;
  transition: transform 0.2s, box-shadow 0.2s;
  font-size: 0.85rem;
  flex: 1;
  text-align: center;
  min-width: 120px;
}

.card-links a.secondary {
  background: transparent;
  border: 2px solid var(--accent-color);
  color: var(--accent-color);
}

.card-links a:hover {
  text-decoration: none;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(249, 115, 22, 0.4);
}

.card-links a.secondary:hover {
  background: var(--accent-color);
  color: white;
}

.cta-container {
  text-align: center;
  margin: 4rem 0;
  padding: 3rem;
  background: var(--card-bg);
  border-radius: 20px;
  border: 2px dashed var(--border-color);
}

.cta-button {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem 2rem;
  background: var(--accent-gradient);
  color: white !important;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-radius: 50px;
  transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  box-shadow: 0 10px 15px -3px rgba(249, 115, 22, 0.3);
}

.cta-button:hover {
  text-decoration: none !important;
  transform: scale(1.1);
  box-shadow: 0 20px 25px -5px rgba(249, 115, 22, 0.4);
}

footer {
  margin-top: 6rem;
  padding: 4rem 0;
  border-top: 2px solid var(--border-color);
  color: var(--text-dim);
}

.footer-section h4 {
  color: var(--accent-color);
  margin-bottom: 1.5rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 0.85rem;
  font-weight: 800;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer-section ul {
  list-style: none;
}

.footer-section ul li {
  margin-bottom: 0.5rem;
}

.footer-bottom {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid var(--border-color);
  opacity: 0.7;
}

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

/* Responsive adjustments */
@media (max-width: 768px) {
  body { padding: 1rem; }
  header { flex-direction: column; align-items: flex-start; gap: 1rem; }
  nav a { margin-left: 0; margin-right: 1.5rem; padding: 0.5rem 0; }
  h1 { font-size: 2.2rem; }
  .grid { grid-template-columns: 1fr; }
}