/*
 * WebsiteTool.org Main Stylesheet
 * Mobile-first responsive design
 * Last Updated: 2026-01-05
 */

/* === CSS Variables === */
:root {
  /* Colors */
  --color-primary: #2563eb;
  --color-primary-dark: #1d4ed8;
  --color-primary-light: #3b82f6;
  --color-secondary: #10b981;
  --color-text: #1f2937;
  --color-text-light: #6b7280;
  --color-background: #ffffff;
  --color-background-alt: #f9fafb;
  --color-border: #e5e7eb;
  --color-card-bg: #ffffff;
  --color-shadow: rgba(0, 0, 0, 0.1);

  /* Typography */
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-size-base: 16px;
  --line-height-base: 1.6;

  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-xxl: 4rem;

  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;

  /* Container */
  --container-max-width: 1200px;

  /* Transitions */
  --transition-speed: 0.3s;
}

/* === Reset & Base Styles === */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: var(--font-size-base);
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  line-height: var(--line-height-base);
  color: var(--color-text);
  background-color: var(--color-background-alt);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* === Typography === */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-text);
  margin-bottom: var(--spacing-sm);
}

h1 {
  font-size: 2.5rem;
}

h2 {
  font-size: 2rem;
  margin-bottom: var(--spacing-md);
}

h3 {
  font-size: 1.5rem;
}

p {
  margin-bottom: var(--spacing-sm);
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-speed);
}

a:hover {
  color: var(--color-primary-dark);
}

/* === Container === */
.container {
  width: 100%;
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

/* === Header === */
.site-header {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: white;
  padding: var(--spacing-xl) 0;
  box-shadow: 0 2px 8px var(--color-shadow);
}

.header-content {
  text-align: center;
}

.site-title {
  color: white;
  font-size: 2.5rem;
  margin-bottom: var(--spacing-xs);
  font-weight: 800;
}

.site-tagline {
  color: rgba(255, 255, 255, 0.9);
  font-size: 1.25rem;
  font-weight: 300;
  margin: 0;
}

/* === Main Content === */
.main-content {
  flex: 1;
  padding: var(--spacing-xxl) 0;
}

/* === Sections === */
section {
  margin-bottom: var(--spacing-xxl);
}

section h2 {
  color: var(--color-text);
  border-bottom: 3px solid var(--color-primary);
  padding-bottom: var(--spacing-sm);
  margin-bottom: var(--spacing-lg);
}

/* === Welcome Section === */
.welcome-section {
  background: var(--color-card-bg);
  padding: var(--spacing-lg);
  border-radius: var(--radius-lg);
  box-shadow: 0 1px 3px var(--color-shadow);
}

.welcome-section p {
  font-size: 1.125rem;
  color: var(--color-text-light);
  margin: 0;
}

/* === Apps Grid === */
.apps-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-md);
}

@media (min-width: 640px) {
  .apps-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .apps-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* === App Cards === */
.app-card {
  background: var(--color-card-bg);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  transition: all var(--transition-speed);
  cursor: pointer;
  box-shadow: 0 1px 3px var(--color-shadow);
}

.app-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 4px 12px var(--color-shadow);
  border-color: var(--color-primary);
}

.app-card--placeholder {
  border-style: dashed;
  cursor: default;
  opacity: 0.7;
}

.app-card--placeholder:hover {
  transform: none;
  box-shadow: 0 1px 3px var(--color-shadow);
  border-color: var(--color-border);
}

.app-card__icon {
  width: 64px;
  height: 64px;
  background: var(--color-primary-light);
  color: white;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-md);
}

.app-card--placeholder .app-card__icon {
  background: var(--color-border);
  color: var(--color-text-light);
}

.app-card__title {
  color: var(--color-text);
  margin-bottom: var(--spacing-xs);
  font-size: 1.25rem;
}

.app-card__description {
  color: var(--color-text-light);
  font-size: 0.875rem;
  margin: 0;
}

/* === Info Grid === */
.info-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-md);
}

@media (min-width: 768px) {
  .info-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.info-card {
  background: var(--color-card-bg);
  padding: var(--spacing-lg);
  border-radius: var(--radius-lg);
  border-left: 4px solid var(--color-secondary);
  box-shadow: 0 1px 3px var(--color-shadow);
}

.info-card h3 {
  color: var(--color-text);
  font-size: 1.125rem;
  margin-bottom: var(--spacing-sm);
}

.info-card p {
  color: var(--color-text-light);
  font-size: 0.875rem;
  margin: 0;
}

/* === Footer === */
.site-footer {
  background: var(--color-text);
  color: rgba(255, 255, 255, 0.8);
  padding: var(--spacing-lg) 0;
  margin-top: auto;
}

.site-footer .container {
  text-align: center;
}

.site-footer p {
  margin-bottom: var(--spacing-xs);
  font-size: 0.875rem;
}

.footer-meta {
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.75rem;
}

.separator {
  margin: 0 var(--spacing-xs);
}

/* === Responsive Typography === */
@media (max-width: 640px) {
  html {
    font-size: 14px;
  }

  .site-title {
    font-size: 2rem;
  }

  .site-tagline {
    font-size: 1rem;
  }

  h2 {
    font-size: 1.5rem;
  }
}

/* === Accessibility === */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* Focus styles for keyboard navigation */
a:focus,
.app-card:focus {
  outline: 3px solid var(--color-primary);
  outline-offset: 2px;
}

/* === Print Styles === */
@media print {
  .site-header,
  .site-footer {
    background: none;
    color: black;
  }

  .app-card {
    break-inside: avoid;
  }
}