/**
 * TabMail - Download Page Styles
 * 
 * Page-specific styles for download.html
 * Requires: palette.css, base.css, header.css, pages.css
 */

/* ============================================
   Page Background
   ============================================ */
body {
  background: var(--page-bg-alt) !important;
}

@media (prefers-color-scheme: dark) {
  body {
    background: var(--page-bg-alt-dark) !important;
  }
}

/* ============================================
   Section Headers
   ============================================ */
.download-section-header {
  margin-top: 1rem;
}

.download-section-header h2 {
  font-size: 1.375rem;
  font-weight: 600;
  margin: 0 0 0.5rem;
  color: var(--text-color);
}

.download-section-header p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin: 0;
}

@media (prefers-color-scheme: dark) {
  .download-section-header h2 {
    color: var(--text-color-dark);
  }
  .download-section-header p {
    color: var(--text-secondary-dark);
  }
}

/* ============================================
   Platform Cards (iPhone + Desktop side by side)
   ============================================ */
.platform-cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 1.5rem;
  margin-bottom: 2.5rem;
}

.platform-card {
  padding: 1.5rem;
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  display: flex;
  flex-direction: column;
}

.platform-card-title {
  font-size: 1.2rem;
  font-weight: 600;
  margin: 0 0 0.35rem;
  color: var(--text-color);
}

.platform-card-subtitle {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin: 0 0 1rem;
}

.section-divider {
  border: none;
  border-top: 1px solid var(--border-color);
  margin: 0.5rem 0 2rem;
}

@media (prefers-color-scheme: dark) {
  .section-divider {
    border-top-color: var(--border-color-dark);
  }
}

.platform-card-features {
  font-size: 0.8rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 1rem;
}

.appstore-badge-link {
  display: inline-block;
  margin-top: auto;
}

.platform-card-btn {
  display: inline-block;
  margin-top: auto;
  padding: 0.5rem 1.25rem;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--accent-color);
  border: 1px solid var(--accent-color);
  border-radius: 8px;
  text-decoration: none;
  text-align: center;
  transition: background 0.2s ease;
}

.platform-card-btn:hover {
  background: var(--accent-bg);
}

@media (prefers-color-scheme: dark) {
  .platform-card {
    background: var(--card-bg-dark);
    border-color: var(--border-color-dark);
  }
  .platform-card-title {
    color: var(--text-color-dark);
  }
  .platform-card-subtitle,
  .platform-card-features {
    color: var(--text-secondary-dark);
  }
  .platform-card-btn {
    color: var(--accent-color-dark);
    border-color: var(--accent-color-dark);
  }
  .platform-card-btn:hover {
    background: var(--accent-bg-dark);
  }
}

@media (max-width: 800px) {
  .platform-cards {
    grid-template-columns: 1fr;
  }
}

/* ============================================
   Installation Method Tabs
   ============================================ */
.install-method-tabs {
  display: flex;
  gap: 12px;
  margin-top: 32px;
  margin-bottom: 24px;
}

.install-method-tab {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 14px 24px;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-color);
  background: var(--card-bg);
  border: 2px solid var(--border-color);
  border-radius: 12px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.install-method-tab:hover {
  border-color: var(--accent-color);
}

.install-method-tab.active {
  color: var(--accent-color);
  border-color: var(--accent-color);
  background: var(--accent-bg);
}

.install-method-tab svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
}

.tab-badge {
  font-size: 0.75rem;
  font-weight: 500;
  padding: 2px 8px;
  background: var(--accent-color);
  color: #fff;
  border-radius: 10px;
}

@media (prefers-color-scheme: dark) {
  .install-method-tab {
    color: var(--text-color-dark);
    background: var(--card-bg-dark);
    border-color: var(--border-color-dark);
  }

  .install-method-tab:hover {
    border-color: var(--accent-color-dark);
  }

  .install-method-tab.active {
    color: var(--accent-color-dark);
    border-color: var(--accent-color-dark);
    background: var(--accent-bg-dark);
  }

  .tab-badge {
    background: var(--accent-fill-dark);
  }
}

@media (max-width: 640px) {
  .install-method-tabs {
    flex-direction: column;
  }

  .install-method-tab {
    justify-content: center;
  }
}

/* ============================================
   Installation Method Content
   ============================================ */
.install-method-content {
  display: none;
}

.install-method-content.active {
  display: block;
}

.method-description {
  color: var(--text-color-secondary);
  margin-bottom: 24px;
  font-size: 1rem;
  line-height: 1.6;
}

@media (prefers-color-scheme: dark) {
  .method-description {
    color: var(--text-color-secondary-dark);
  }
}

/* ============================================
   FTS Helper "Installer handles this" note
   ============================================ */
.fts-helper-note {
  border: 1px solid var(--border-color);
  border-left: 3px solid var(--accent-color);
  background: var(--box-bg);
  border-radius: 8px;
  padding: 12px 16px;
  margin-bottom: 24px;
  font-size: 0.9rem;
  line-height: 1.55;
  color: var(--text-color-secondary);
}

@media (prefers-color-scheme: dark) {
  .fts-helper-note {
    border-color: var(--border-color-dark);
    border-left-color: var(--accent-color-dark);
    background: var(--box-bg-dark);
    color: var(--text-color-secondary-dark);
  }
}

/* "Read the install script on GitHub" source link under each code block */
.fts-source-note {
  margin: 12px 0 0;
  font-size: 0.85rem;
  line-height: 1.5;
  color: var(--text-color-secondary);
}

.fts-source-note a {
  color: var(--accent-color);
  text-decoration: none;
  font-weight: 500;
}

.fts-source-note a:hover {
  text-decoration: underline;
}

/* Reassurance line under the one-click FTS installer cards. */
.fts-installer-note {
  text-align: center;
  max-width: 640px;
  margin: 14px auto 0;
}

@media (prefers-color-scheme: dark) {
  .fts-source-note {
    color: var(--text-color-secondary-dark);
  }
  .fts-source-note a {
    color: var(--accent-color-dark);
  }
}

/* ============================================
   Download Cards Grid
   ============================================ */
.download-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
  margin-top: 40px;
}

@media (max-width: 640px) {
  .download-grid {
    grid-template-columns: 1fr;
  }
}

.download-card {
  background-color: var(--card-bg);
  border-radius: 16px;
  padding: 32px;
  text-align: center;
  transition: all 0.2s ease;
  border: 1px solid var(--border-color);
}

.download-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
}

@media (prefers-color-scheme: dark) {
  .download-card {
    background-color: var(--card-bg-dark);
    border-color: var(--border-color-dark);
  }

  .download-card:hover {
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
  }
}

.download-icon {
  width: 72px;
  height: 72px;
  margin: 0 auto 20px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.download-icon svg {
  width: 64px;
  height: 64px;
  fill: var(--text-color);
}

@media (prefers-color-scheme: dark) {
  .download-icon svg {
    fill: var(--text-color-dark);
  }
}

.download-title {
  font-size: 1.5em;
  font-weight: 600;
  color: var(--text-color);
  margin-bottom: 8px;
}

@media (prefers-color-scheme: dark) {
  .download-title {
    color: var(--text-color-dark);
  }
}

.download-subtitle {
  color: var(--text-color-secondary);
  font-size: 0.95em;
  margin-bottom: 24px;
}

@media (prefers-color-scheme: dark) {
  .download-subtitle {
    color: var(--text-color-secondary-dark);
  }
}

.download-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  font-size: 0.9375rem;
  font-weight: 600;
  color: #fff;
  background: var(--accent-color);
  border: none;
  border-radius: 50px;
  text-decoration: none;
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  cursor: pointer;
  white-space: nowrap;
  width: 100%;
  max-width: 220px;
}

.download-btn:hover {
  background: #0050c4;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
  text-decoration: none;
}

.download-btn:active {
  transform: translateY(0);
}

@media (prefers-color-scheme: dark) {
  .download-btn {
    background: var(--accent-fill-dark);
  }
  
  .download-btn:hover {
    background: #0050c4;
  }
}

.download-btn svg {
  width: 20px;
  height: 20px;
  fill: #fff;
}

/* ============================================
   Requirements Section
   ============================================ */
.requirements {
  margin-top: 50px;
  padding: 24px;
  background-color: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 12px;
}

@media (prefers-color-scheme: dark) {
  .requirements {
    background-color: var(--card-bg-dark);
    border-color: var(--border-color-dark);
  }
}

.requirements h3 {
  margin-top: 0;
  color: var(--text-color);
  font-size: 1.25em;
  margin-bottom: 16px;
}

@media (prefers-color-scheme: dark) {
  .requirements h3 {
    color: var(--text-color-dark);
  }
}

.requirements ul {
  margin: 0;
  padding-left: 24px;
}

.requirements li {
  margin-bottom: 8px;
  opacity: 0.85;
}

/* ============================================
   Expert Card (Manual Installation)
   ============================================ */
.expert-card {
  background-color: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 24px;
  margin-bottom: 20px;
}

@media (prefers-color-scheme: dark) {
  .expert-card {
    background-color: var(--card-bg-dark);
    border-color: var(--border-color-dark);
  }
}

.expert-card h3 {
  margin-top: 0;
  color: var(--text-color);
  font-size: 1.125em;
  margin-bottom: 12px;
}

@media (prefers-color-scheme: dark) {
  .expert-card h3 {
    color: var(--text-color-dark);
  }
}

.expert-card p {
  color: var(--text-color-secondary);
  font-size: 0.95em;
  margin-bottom: 16px;
}

@media (prefers-color-scheme: dark) {
  .expert-card p {
    color: var(--text-color-secondary-dark);
  }
}

/* ============================================
   Code Block
   ============================================ */
.code-block {
  background-color: var(--page-bg);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 16px;
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 12px;
}

@media (prefers-color-scheme: dark) {
  .code-block {
    background-color: var(--page-bg-dark);
    border-color: var(--border-color-dark);
  }
}

.code-block code {
  font-family: 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', Consolas, 'Liberation Mono', Menlo, Courier, monospace;
  font-size: 0.8em;
  color: var(--text-color);
  order: 1;
  flex: 1 1 auto;
  min-width: 0; /* allow the flex item to shrink so overflow-x can scroll */
  display: block;
  /* One line; scroll horizontally if the raw.githubusercontent one-liner is
     wider than the available width. The Copy button is a separate flex item
     pinned to the right, so the command never runs under it. */
  white-space: pre;
  overflow-x: auto;
}

@media (prefers-color-scheme: dark) {
  .code-block code {
    color: var(--text-color-dark);
  }
}

.copy-btn {
  order: 2;
  flex-shrink: 0;
  padding: 6px 12px;
  font-size: 0.8125em;
  font-weight: 500;
  color: var(--text-color);
  background: var(--button-bg);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  gap: 6px;
}

.copy-btn:hover {
  background: var(--button-bg-hover);
}

@media (prefers-color-scheme: dark) {
  .copy-btn {
    color: var(--text-color-dark);
    background: var(--button-bg-dark);
    border-color: var(--border-color-dark);
  }

  .copy-btn:hover {
    background: var(--button-bg-hover-dark);
  }
}

.copy-btn svg {
  width: 14px;
  height: 14px;
  fill: currentColor;
}

/* ============================================
   XPI Link
   ============================================ */
.xpi-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--accent-color);
  text-decoration: none;
  font-weight: 500;
  font-size: 1em;
  padding: 12px 20px;
  background-color: var(--box-bg);
  border-radius: 8px;
  transition: all 0.2s ease;
}

.xpi-link:hover {
  background-color: var(--box-bg-hover);
  text-decoration: none;
}

@media (prefers-color-scheme: dark) {
  .xpi-link {
    color: var(--accent-color-dark);
    background-color: var(--button-bg-dark);
  }

  .xpi-link:hover {
    background-color: var(--button-bg-hover-dark);
  }
}

.xpi-link svg {
  width: 18px;
  height: 18px;
  fill: currentColor;
}

/* ============================================
   Installation Steps
   ============================================ */
.install-steps {
  margin-top: 16px;
  padding-left: 20px;
}

.install-steps li {
  margin-bottom: 8px;
  color: var(--text-color-secondary);
  font-size: 0.9375em;
}

@media (prefers-color-scheme: dark) {
  .install-steps li {
    color: var(--text-color-secondary-dark);
  }
}

/* ============================================
   Platform Tabs
   ============================================ */
.platform-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
}

.platform-tab {
  padding: 8px 16px;
  font-size: 0.875em;
  font-weight: 500;
  color: var(--text-color-secondary);
  background: transparent;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.platform-tab:hover {
  background: var(--box-bg);
}

.platform-tab.active {
  color: var(--accent-color);
  border-color: var(--accent-color);
  background: var(--box-bg);
}

@media (prefers-color-scheme: dark) {
  .platform-tab {
    color: var(--text-color-secondary-dark);
    border-color: var(--border-color-dark);
  }

  .platform-tab:hover {
    background: var(--box-bg-dark);
  }

  .platform-tab.active {
    color: var(--accent-color-dark);
    border-color: var(--accent-color-dark);
    background: var(--box-bg-dark);
  }
}

.platform-content {
  display: none;
}

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