:root {
  --primary: #2c3e50;
  --secondary: #34495e;
  --accent: #3498db;
  --background: #f8f9fa;
  --text: #333;
  --card-bg: #fff;
}

body {
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  margin: 0;
  padding: 0;
  background-color: var(--background);
  color: var(--text);
  line-height: 1.6;
}

header {
  background-color: var(--card-bg);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  padding: 1rem 2rem;
  text-align: center;
}

.logo-container {
  max-width: 200px;
  margin: 0 auto;
}

.logo-container img {
  width: 100%;
  height: auto;
}

main {
  max-width: 1200px;
  margin: 2rem auto;
  padding: 0 1rem;
}

.hero {
  text-align: center;
  margin-bottom: 3rem;
  padding: 2rem;
}

.hero h1 {
  font-size: 2.5rem;
  color: var(--primary);
  margin-bottom: 0.5rem;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  justify-content: center;
}

.card {
  background: var(--card-bg);
  border-radius: 12px;
  padding: 2rem;
  text-align: center;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
  transition: transform 0.2s, box-shadow 0.2s;
  text-decoration: none;
  color: inherit;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 15px rgba(0, 0, 0, 0.1);
}

.card-icon {
  width: 80px;
  height: 80px;
  object-fit: contain;
  margin-bottom: 1rem;
  border-radius: 16px; /* Rounded icon style */
}

.card h2 {
  color: var(--secondary);
  margin: 0.5rem 0;
}

.card p {
  color: #666;
  font-size: 0.9rem;
}

footer {
  text-align: center;
  padding: 2rem;
  margin-top: 4rem;
  border-top: 1px solid #eee;
  color: #888;
  font-size: 0.9rem;
}

footer a {
  color: var(--accent);
  text-decoration: none;
  margin: 0 0.5rem;
}

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

/* App Page Specifics */
.app-header {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 2rem;
}

.app-logo {
  width: 64px;
  height: 64px;
  border-radius: 12px;
}

.app-hero-image {
  max-width: 100%;
  max-height: 400px;
  border-radius: 12px;
  margin: 2rem auto;
  display: block;
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.download-badges {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin: 2rem 0;
}

.legal-section {
  background-color: var(--card-bg);
  padding: 2rem;
  border-radius: 12px;
  margin-top: 3rem;
}

.button-primary {
  display: inline-block;
  background-color: var(--accent);
  color: white;
  padding: 0.8rem 1.5rem;
  border-radius: 8px;
  text-decoration: none;
  font-weight: bold;
  margin-top: 1rem;
  transition: background-color 0.2s;
  box-shadow: 0 4px 6px rgba(52, 152, 219, 0.3);
}

.button-primary:hover {
  background-color: #2980b9;
  transform: translateY(-2px);
}

/* --- Chess Timer page layout improvements --- */

.hero--app {
  background: var(--card-bg);
  border-radius: 12px;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
  padding: 1.25rem;
}

.app-title h1 {
  margin: 0;
  line-height: 1.1;
}

.tagline {
  margin: 0.35rem 0 0;
  color: #666;
  font-size: 1rem;
}

.hero-actions {
  margin-top: 1rem;
  display: grid;
  gap: 0.75rem;
  justify-items: center;
}

.meta {
  margin: 0;
  color: #777;
  font-size: 0.9rem;
  max-width: 52ch;
}

.content {
  margin-top: 1.25rem;
  padding: 0 0.5rem;
}

.content-inner {
  margin: 0 auto;
  max-width: 70ch; /* readable line length */
  text-align: left;
}

.content-inner p {
  margin: 0 0 1rem;
  font-size: 1.05rem;
}

/* Improve header responsiveness */
.app-header {
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.app-logo {
  width: 56px;
  height: 56px;
}

/* Make the primary button more touch-friendly */
.button-primary {
  width: 100%;
  max-width: 320px;
  text-align: center;
}

/* Legal section: responsive columns */
.legal-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
  margin-top: 1rem;
  text-align: left;
}

.legal-col h4 {
  margin: 0 0 0.5rem;
}

.legal-links {
  list-style: none;
  padding: 0;
  margin: 0;
}

.legal-links li {
  margin: 0.4rem 0;
}

/* Tablet and up */
@media (min-width: 700px) {
  .hero--app {
    padding: 2rem;
  }

  .app-logo {
    width: 64px;
    height: 64px;
  }

  .button-primary {
    width: auto;
  }

  .legal-grid {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }
}

/* Desktop: slightly more spacing */
@media (min-width: 1000px) {
  .content {
    margin-top: 2rem;
  }
}