/* Global reset and base styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  background-color: var(--bg-main);
  color: var(--text-main);
  line-height: 1.5;
  transition:
    background-color var(--transition-speed),
    color var(--transition-speed);
}

.container {
  max-width: 1024px;
  margin: 0 auto;
  padding: var(--spacing-xl);
}

/* Header Styles */
header {
  margin-bottom: var(--spacing-2xl);
}

.header-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-md);
}

.header-brand {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.logo {
  width: 40px;
  height: 40px;
  border-radius: var(--border-radius-md);
}

h1 {
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.025em;
}

.header-accent {
  height: 4px;
  background: linear-gradient(
    to right,
    var(--accent-colour),
    rgba(16, 185, 129, 0.3)
  );
  border-radius: var(--border-radius-full);
}

/* Theme Toggle */
.theme-toggle {
  background: var(--bg-subtle);
  border: 1px solid var(--border-colour);
  color: var(--text-main);
  padding: var(--spacing-sm);
  border-radius: var(--border-radius-md);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-speed);
}

.theme-toggle:hover {
  background: var(--bg-input);
  border-color: var(--text-secondary);
}

.sun-icon {
  display: none;
}

[data-theme="dark"] .sun-icon {
  display: block;
}

[data-theme="dark"] .moon-icon {
  display: none;
}

/* Hero Section */
.hero-section {
  text-align: center;
  margin-bottom: var(--spacing-2xl);
}

.hero-section h2 {
  font-size: 2.5rem;
  font-weight: 900;
  margin-bottom: var(--spacing-md);
  line-height: 1.2;
}

.hero-section p {
  font-size: 1.25rem;
  color: var(--text-muted);
  max-width: 600px;
  margin: 0 auto;
}

/* Apps Section */
.apps-section {
  margin-bottom: var(--spacing-2xl);
}

.apps-section h2 {
  font-size: 1.75rem;
  font-weight: 800;
  margin-bottom: var(--spacing-lg);
  color: var(--text-main);
  letter-spacing: -0.025em;
}

/* Apps Grid */
.apps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-lg);
}

.app-card {
  display: flex;
  flex-direction: column;
  padding: var(--spacing-lg);
  background-color: var(--bg-subtle);
  border: 1px solid var(--border-colour);
  border-radius: var(--border-radius-lg);
  text-decoration: none;
  color: inherit;
  transition: all var(--transition-speed);
}

.app-card:hover {
  border-color: var(--accent-colour);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.app-card__icon-wrapper {
  width: 48px;
  height: 48px;
  margin-bottom: var(--spacing-md);
  background: var(--bg-main);
  border-radius: var(--border-radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.app-card__icon {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.app-card__title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
}

.app-card__description {
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* Footer Styles */
footer {
  margin-top: var(--spacing-2xl);
  padding-top: var(--spacing-xl);
  border-top: 1px solid var(--border-colour);
  text-align: center;
  color: var(--text-muted);
}

.footer-nav {
  margin-top: var(--spacing-md);
}

.footer-nav a {
  color: var(--accent-colour);
  text-decoration: none;
  font-weight: 500;
}

.footer-nav a:hover {
  text-decoration: underline;
}

/* Responsive adjustments */
@media (max-width: 768px) {
  .hero-section h2 {
    font-size: 2rem;
  }

  .container {
    padding: var(--spacing-lg);
  }
}