/* Base styles */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px;
}

/* Hero Section */
/* The platform tabs sit in the lower part of this band and the version list
   rises across its bottom edge (the container's negative margin below). */
.hero {
  position: relative;
  background:
    radial-gradient(50% 80% at 50% 0%, rgba(120, 150, 220, 0.16), transparent 70%),
    linear-gradient(160deg, var(--hero-gradient-start) 0%, var(--hero-gradient-end) 100%);
  color: var(--white);
  padding: 148px 20px 196px;
  text-align: center;
}

.hero-content {
  max-width: 640px;
  margin: 0 auto;
}

.hero h1 {
  font-size: var(--text-6xl);
  margin: 0 0 12px 0;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.hero p {
  font-size: var(--text-lg);
  margin: 0;
  color: var(--white);
}

.hero + .container {
  position: relative;
  margin-top: -156px;
  padding-top: 0;
}

/* Note under the hero subtitle */
.hero .version-notice {
  max-width: 560px;
  margin: 20px auto 0;
  font-size: var(--text-xs);
  line-height: 1.6;
  color: var(--white-alpha-80);
}

.version-notice a {
  color: var(--blue-300);
  font-weight: 600;
  text-decoration: none;
}

.version-notice a:hover {
  text-decoration: underline;
}

/* Platform Tabs */
.platform-tabs {
  display: flex;
  gap: 12px;
  margin-bottom: 32px;
  justify-content: center;
}

.platform-tab {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 24px;
  background: var(--white);
  border: 2px solid var(--gray-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--gray-700);
  transition: all 0.2s ease;
}

.platform-tab:hover:not(:disabled) {
  border-color: var(--primary-blue);
  color: var(--primary-blue);
}

.platform-tab.active {
  background: var(--primary-blue);
  border-color: var(--primary-blue);
  color: var(--white);
}

.platform-tab.active:hover:not(:disabled) {
  background: var(--blue-700);
  border-color: var(--blue-700);
  color: var(--white);
}

.platform-tab:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.platform-tab .tab-icon {
  width: 24px;
  height: 24px;
}

.platform-tab .coming-soon-label {
  font-size: var(--text-2xs);
  font-weight: 600;
  text-transform: uppercase;
  background: var(--gray-bg-light);
  color: var(--black);
  padding: 3px 8px;
  border-radius: var(--radius-sm);
  letter-spacing: 0.3px;
}

.platform-tab.active .coming-soon-label {
  background: var(--white-alpha-20);
  color: var(--white);
}

/* Platform Content */
.platform-content {
  display: none;
}

.platform-content.active {
  display: block;
}

.platform-icon-large {
  width: 64px;
  height: 64px;
  color: var(--black);
  margin-bottom: 20px;
}

/* Version cards */
.version-grid {
  display: grid;
  gap: 24px;
  margin-bottom: 40px;
}

.version-download-card {
  background: var(--white);
  border-radius: var(--radius-xl);
  padding: 32px;
  box-shadow: var(--elevation-md);
  border: 1px solid var(--gray-border);
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: start;
  gap: 32px;
}

.version-info h3 {
  margin: 0 0 16px 0;
  color: var(--gray-800);
  font-size: var(--text-xl);
  font-weight: 700;
}

.version-meta {
  margin-bottom: 20px;
}

.meta-item {
  color: var(--black);
  font-size: var(--text-xs);
  margin-bottom: 6px;
  line-height: 1.5;
}

.meta-item strong {
  color: var(--gray-700);
  font-weight: 600;
  min-width: 80px;
  display: inline-block;
}

.download-section {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 12px;
  min-width: 200px;
}

/* No versions available state */
.version-card {
  background: var(--white);
  border-radius: var(--radius-xl);
  padding: 60px 40px;
  text-align: center;
  box-shadow: var(--elevation-md);
  border: 1px solid var(--gray-border);
}

.no-versions h3 {
  color: var(--gray-800);
  font-size: var(--text-xl);
  margin-bottom: 16px;
  font-weight: 700;
}

.no-versions p {
  color: var(--black);
  font-size: var(--text-sm);
  line-height: 1.6;
  max-width: 400px;
  margin: 0 auto 24px;
}

.no-versions .btn {
  display: inline-block;
  margin: 0 auto;
  padding: 12px 20px;
  width: auto;
}

/* Responsive design */
@media (max-width: 768px) {
  .hero {
    padding: 120px 16px 232px;
  }

  .hero h1 {
    font-size: var(--text-4xl);
  }

  .hero p {
    font-size: var(--text-md);
  }

  .container {
    padding: 15px;
  }

  .hero + .container {
    margin-top: -200px;
    padding-top: 0;
  }

  .hero .version-notice {
    margin-top: 16px;
  }

  .platform-tabs {
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-auto-rows: 1fr;
    gap: 8px;
    margin-bottom: 24px;
  }

  .platform-tab {
    justify-content: center;
    gap: 8px;
    padding: 10px 8px;
    font-size: var(--text-xs);
    text-align: left;
  }

  .platform-tab .tab-icon {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
  }

  .version-download-card {
    grid-template-columns: 1fr;
    gap: 24px;
    padding: 24px;
  }

  .download-section {
    align-items: stretch;
    width: 100%;
  }

  .download-btn {
    justify-content: center !important;
  }

  .version-card {
    padding: 36px 20px;
  }
}

@media (max-width: 480px) {
  .version-download-card {
    padding: 20px;
  }

  .download-btn {
    padding: 12px 20px !important;
    font-size: var(--text-xs) !important;
  }

  .hero h1 {
    font-size: var(--text-2xl);
  }

  .hero p {
    font-size: var(--text-sm);
  }

  .version-info h3 {
    font-size: var(--text-lg);
  }
}