/* DietDroid - Clean Dark Theme */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

:root {
  --bg-dark: #0a0a0a;
  --bg-card: #1a1a1a;
  --bg-hover: #252525;
  --text-primary: #e0e0e0;
  --text-secondary: #a0a0a0;
  --accent: #00d4ff;
  --accent-hover: #00b8e6;
  --border: #2a2a2a;
}

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

html {
  height: 100%;
}

body {
  font-family: 'Inter', -apple-system, sans-serif;
  background: var(--bg-dark);
  color: var(--text-primary);
  line-height: 1.6;
  font-size: 16px;
  min-height: 100%;
  display: flex;
  flex-direction: column;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* Header */
header {
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  padding: 1.5rem 0;
  position: sticky;
  top: 0;
  z-index: 1000;
  backdrop-filter: blur(10px);
}

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

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: #fff;
  text-decoration: none;
  transition: color 0.3s;
}

.logo:hover {
  color: var(--accent);
}

nav ul {
  list-style: none;
  display: flex;
  gap: 2rem;
  margin: 0;
  padding: 0;
}

nav li {
  margin: 0;
}

nav a {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.3s;
}

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

/* Hero/Page Header */
.hero {
  padding: 4rem 0 3rem;
  text-align: center;
}

.hero h1 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: #fff;
  line-height: 1.2;
}

.hero p {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 800px;
  margin: 0 auto 1rem;
}

/* Buttons */
.buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
  margin: 2rem 0;
}

.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  background: var(--accent);
  color: var(--bg-dark);
  text-decoration: none;
  border-radius: 6px;
  font-weight: 600;
  transition: all 0.3s;
  border: none;
  cursor: pointer;
}

.btn:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 212, 255, 0.3);
}

/* Grid */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 2rem;
  padding: 2rem 0 4rem;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 2rem;
  transition: all 0.3s;
  display: flex;
  flex-direction: column;
}

.card:hover {
  transform: translateY(-4px);
  border-color: var(--accent);
  box-shadow: 0 8px 24px rgba(0, 212, 255, 0.1);
}

.card h3 {
  font-size: 1.25rem;
  margin-bottom: 1rem;
  color: #fff;
  font-weight: 600;
}

.card p {
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  flex-grow: 1;
}

.card .btn {
  align-self: flex-start;
  margin-top: auto;
}

/* Content sections */
.content {
  padding: 3rem 0;
  flex: 1;
}

.content h2 {
  font-size: 2rem;
  margin-bottom: 2rem;
  color: #fff;
}

.content h3 {
  font-size: 1.5rem;
  margin: 2rem 0 1rem;
  color: #fff;
}

.content p {
  margin-bottom: 1rem;
  line-height: 1.7;
}

.content ul, .content ol {
  margin: 1rem 0 1rem 2rem;
}

.content li {
  margin-bottom: 0.5rem;
}

.content a {
  color: var(--accent);
  text-decoration: none;
}

.content a:hover {
  text-decoration: underline;
}

/* Footer */
footer {
  background: var(--bg-card);
  border-top: 1px solid var(--border);
  padding: 3rem 0;
  margin-top: auto;
  text-align: center;
}

.footer-links {
  display: flex;
  gap: 2rem;
  justify-content: center;
  margin-bottom: 1rem;
}

.footer-links a {
  color: var(--text-secondary);
  text-decoration: none;
}

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

footer p {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

/* Responsive */
@media (max-width: 768px) {
  .container {
    padding: 0 1rem;
  }

  nav ul {
    gap: 1rem;
  }

  .hero {
    padding: 3rem 0 2rem;
  }

  .hero h1 {
    font-size: 2rem;
  }

  .hero p {
    font-size: 1rem;
  }

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

  .buttons {
    flex-direction: column;
  }

  .btn {
    width: 100%;
    text-align: center;
  }

  .footer-links {
    flex-direction: column;
    gap: 0.5rem;
  }
}