/* ============================================
   FP Softlab - Modern Space Website Styles
   ============================================ */

/* CSS Variables */
:root {
  /* Colors */
  --color-primary: #2563eb;
  --color-primary-dark: #1e40af;
  --color-secondary: #64748b;
  --color-accent: #0ea5e9;
  --color-background: #ffffff;
  --color-surface: #f8fafc;
  --color-text: #1e293b;
  --color-text-light: #64748b;
  --color-border: #e2e8f0;
  --color-success: #10b981;
  --color-warning: #f59e0b;
  --color-error: #ef4444;
  
  /* Typography */
  --font-system: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: "SF Mono", Monaco, "Cascadia Code", "Courier New", monospace;
  
  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-xxl: 4rem;
  
  /* Layout */
  --container-width: 1200px;
  --container-padding: 1.5rem;
  --border-radius: 8px;
  --border-radius-lg: 12px;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  
  /* Transitions */
  --transition-fast: 150ms ease-in-out;
  --transition-base: 250ms ease-in-out;
}

/* ============================================
   Reset & Base Styles
   ============================================ */

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-system);
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-background);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

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

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

/* ============================================
   Typography
   ============================================ */

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

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.125rem; }
h6 { font-size: 1rem; }

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

ul, ol {
  margin-bottom: var(--spacing-md);
  padding-left: var(--spacing-lg);
}

li {
  margin-bottom: var(--spacing-xs);
}

code {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  background-color: var(--color-surface);
  padding: 0.125rem 0.375rem;
  border-radius: 4px;
  border: 1px solid var(--color-border);
}

pre {
  background-color: var(--color-surface);
  padding: var(--spacing-md);
  border-radius: var(--border-radius);
  overflow-x: auto;
  margin-bottom: var(--spacing-md);
  border: 1px solid var(--color-border);
}

pre code {
  background: none;
  border: none;
  padding: 0;
}

/* ============================================
   Layout
   ============================================ */

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

.content-wrapper {
  max-width: 800px;
  margin: 0 auto;
}

.section {
  padding: var(--spacing-xxl) 0;
}

.section-title {
  text-align: center;
  margin-bottom: var(--spacing-lg);
}

.section-intro {
  text-align: center;
  color: var(--color-text-light);
  max-width: 600px;
  margin: 0 auto var(--spacing-xl);
}

/* ============================================
   Header
   ============================================ */

.site-header {
  background-color: var(--color-background);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(8px);
  background-color: rgba(255, 255, 255, 0.9);
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-sm) 0;
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--color-text);
}

.logo:hover {
  color: var(--color-primary);
}

.logo-icon {
  width: 32px;
  height: 32px;
}

.main-nav {
  display: none;
}

.nav-list {
  display: flex;
  gap: var(--spacing-lg);
  list-style: none;
  padding: 0;
  margin: 0;
}

.nav-link {
  color: var(--color-text);
  font-weight: 500;
  padding: var(--spacing-xs) 0;
  border-bottom: 2px solid transparent;
  transition: all var(--transition-fast);
}

.nav-link:hover,
.nav-link.active {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
  display: flex;
  flex-direction: column;
  gap: 4px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-xs);
}

.hamburger-line {
  width: 24px;
  height: 2px;
  background-color: var(--color-text);
  transition: all var(--transition-base);
}

.mobile-menu-toggle[aria-expanded="true"] .hamburger-line:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-toggle[aria-expanded="true"] .hamburger-line:nth-child(2) {
  opacity: 0;
}

.mobile-menu-toggle[aria-expanded="true"] .hamburger-line:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -7px);
}

/* Mobile Menu */
.mobile-menu {
  position: fixed;
  top: 65px;
  right: 0;
  bottom: 0;
  width: 280px;
  background-color: var(--color-background);
  border-left: 1px solid var(--color-border);
  transform: translateX(100%);
  transition: transform var(--transition-base);
  z-index: 99;
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
}

.mobile-menu.open {
  transform: translateX(0);
}

.mobile-nav-list {
  list-style: none;
  padding: var(--spacing-md);
}

.mobile-nav-item {
  margin-bottom: var(--spacing-xs);
}

.mobile-nav-link {
  display: block;
  padding: var(--spacing-sm);
  color: var(--color-text);
  font-weight: 500;
  border-radius: var(--border-radius);
  transition: all var(--transition-fast);
}

.mobile-nav-link:hover {
  background-color: var(--color-surface);
  color: var(--color-primary);
}

/* Desktop Navigation */
@media (min-width: 768px) {
  .main-nav {
    display: block;
  }
  
  .mobile-menu-toggle {
    display: none;
  }
  
  .mobile-menu {
    display: none;
  }
}

/* ============================================
   Hero Section
   ============================================ */

.hero {
  position: relative;
  min-height: 400px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  margin-bottom: var(--spacing-xl);
}

.hero-home {
  min-height: 500px;
}

.hero-background {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.7);
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  color: white;
  padding: var(--spacing-xl) var(--spacing-md);
}

.hero-title {
  font-size: clamp(2rem, 5vw, 3.5rem);
  margin-bottom: var(--spacing-sm);
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.4);
  color: #fff;
}

.hero-subtitle {
  font-size: clamp(1rem, 3vw, 1.5rem);
  color: rgba(255, 255, 255, 0.95);
  text-shadow: 0 1px 4px rgba(0, 0, 0, 0.4);
  max-width: 700px;
  margin: 0 auto;
}

/* ============================================
   Breadcrumbs
   ============================================ */

.breadcrumbs {
  padding: var(--spacing-md) 0;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: var(--spacing-lg);
}

.breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xs);
  list-style: none;
  padding: 0;
  margin: 0;
}

.breadcrumb-item {
  display: flex;
  align-items: center;
  color: var(--color-text-light);
  font-size: 0.875rem;
}

.breadcrumb-item:not(:last-child)::after {
  content: "/";
  margin-left: var(--spacing-xs);
  color: var(--color-border);
}

.breadcrumb-item a {
  color: var(--color-text-light);
}

.breadcrumb-item a:hover {
  color: var(--color-primary);
}

/* ============================================
   Cards & Grids
   ============================================ */

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
}

.card {
  background-color: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  transition: all var(--transition-base);
}

.card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.card-image {
  aspect-ratio: 16 / 9;
  overflow: hidden;
}

.card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-base);
}

.card:hover .card-image img {
  transform: scale(1.05);
}

.card-content {
  padding: var(--spacing-md);
}

.card-title {
  margin-bottom: var(--spacing-xs);
}

.card-text {
  color: var(--color-text-light);
  margin-bottom: var(--spacing-md);
}

.card-link {
  display: inline-flex;
  align-items: center;
  color: var(--color-primary);
  font-weight: 600;
  transition: gap var(--transition-fast);
}

.card-link::after {
  content: "→";
  margin-left: var(--spacing-xs);
  transition: transform var(--transition-fast);
}

.card-link:hover::after {
  transform: translateX(4px);
}

.category-card {
  margin: 40px 0
}
.category-card .category-title {
  margin: 20px 0 0
 }

/* ============================================
   Buttons
   ============================================ */

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  font-weight: 600;
  border-radius: var(--border-radius);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
  font-size: 1rem;
}

.button-primary {
  background-color: var(--color-primary);
  color: white;
}

.button-primary:hover {
  background-color: var(--color-primary-dark);
  color: white;
}

.button-secondary {
  background-color: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.button-secondary:hover {
  background-color: var(--color-primary);
  color: white;
}

.button-large {
  padding: 1rem 2rem;
  font-size: 1.125rem;
  margin: 20px 0;
}

.button-small {
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
}

/* ============================================
   Feature Grid
   ============================================ */

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
}

.feature-item {
  text-align: center;
  padding: var(--spacing-lg);
}

.feature-icon {
  width: 48px;
  height: 48px;
  margin: 0 auto var(--spacing-md);
  color: var(--color-primary);
}

.feature-icon svg {
  width: 100%;
  height: 100%;
}

.feature-title {
  margin-bottom: var(--spacing-sm);
}

.feature-text {
  color: var(--color-text-light);
}

/* ============================================
   Gallery
   ============================================ */

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-xl);
}

.gallery-item {
  background-color: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
}

.gallery-image {
  aspect-ratio: 1;
  overflow: hidden;
  background-color: var(--color-surface);
}

.gallery-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.gallery-caption {
  padding: var(--spacing-md);
}

.gallery-item-title {
  margin-bottom: var(--spacing-xs);
  font-size: 1.25rem;
}

.gallery-item-description {
  color: var(--color-text-light);
  margin-bottom: var(--spacing-md);
  line-height: 1.6;
}

.gallery-meta {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
  font-size: 0.875rem;
  color: var(--color-text-light);
}

.meta-item {
  display: block;
}

/* ============================================
   Products
   ============================================ */

.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
}

.product-card {
  background-color: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  transition: all var(--transition-base);
}

.product-card:hover {
  box-shadow: var(--shadow-lg);
}

.product-image {
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background-color: var(--color-surface);
}

.product-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.product-content {
  padding: var(--spacing-md);
}

.product-title {
  margin-bottom: var(--spacing-xs);
}

.product-description {
  color: var(--color-text-light);
  margin-bottom: var(--spacing-md);
}

.product-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xs);
  margin-bottom: var(--spacing-md);
}

.meta-badge {
  padding: 0.25rem 0.75rem;
  background-color: var(--color-surface);
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-text-light);
  border: 1px solid var(--color-border);
}

.product-actions {
  display: flex;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
}

/* Product detail pages */

.feature-list {
  list-style: none;
  padding-left: 0;
  margin: 0 0 var(--spacing-xl);
}

.feature-list .feature-item {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-sm);
  text-align: left;
  padding: 0;
  margin-bottom: var(--spacing-sm);
}

.feature-check {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  color: var(--color-success);
  margin-top: 0.15rem;
}

.use-cases-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-xl);
}

.use-case-card {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-md);
  padding: var(--spacing-md);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
}

.use-case-icon {
  width: 40px;
  height: 40px;
  flex-shrink: 0;
  color: var(--color-primary);
}

.use-case-icon svg {
  width: 100%;
  height: 100%;
}

.screenshot-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-xl);
}

.screenshot-item {
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  overflow: hidden;
  background-color: var(--color-background);
}

.screenshot-item img {
  width: 100%;
  height: auto;
}

.screenshot-item figcaption {
  padding: var(--spacing-sm);
  color: var(--color-text-light);
  font-size: 0.875rem;
}

/* ============================================
   FAQ Accordion
   ============================================ */

.faq-item {
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  margin-bottom: var(--spacing-sm);
  overflow: hidden;
}

.faq-question {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-md);
  background-color: var(--color-surface);
  border: none;
  cursor: pointer;
  font-size: 1rem;
  font-weight: 600;
  text-align: left;
  transition: background-color var(--transition-fast);
}

.faq-question:hover {
  background-color: #e0e7ef;
}

.faq-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  transition: transform var(--transition-base);
}

.faq-question[aria-expanded="true"] .faq-icon {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-base);
}

.faq-question[aria-expanded="true"] + .faq-answer {
  max-height: 1000px;
}

.faq-answer p {
  padding: var(--spacing-md);
  margin: 0;
}

/* ============================================
   Callouts
   ============================================ */

.callout {
  padding: var(--spacing-md);
  border-radius: var(--border-radius);
  border-left: 4px solid;
  margin-bottom: var(--spacing-lg);
}

.callout-info {
  background-color: #dbeafe;
  border-color: var(--color-primary);
}

.callout-warning {
  background-color: #fef3c7;
  border-color: var(--color-warning);
}

.callout-error {
  background-color: #fee2e2;
  border-color: var(--color-error);
}

.callout h3, .callout h4 {
  margin-top: 0;
  margin-bottom: var(--spacing-xs);
}

.callout p:last-child {
  margin-bottom: 0;
}

/* ============================================
   Tables
   ============================================ */

.download-table-wrapper {
  overflow-x: auto;
  margin-bottom: var(--spacing-xl);
}

.download-table {
  width: 100%;
  border-collapse: collapse;
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
}

.download-table th,
.download-table td {
  padding: var(--spacing-sm) var(--spacing-md);
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

.download-table th {
  background-color: var(--color-surface);
  font-weight: 600;
}

.download-table tr:last-child td {
  border-bottom: none;
}

.status-badge {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
}

.status-info {
  background-color: #dbeafe;
  color: #1e40af;
}

/* ============================================
   Download Info Pages
   ============================================ */

.download-quick-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  margin: var(--spacing-md) 0 var(--spacing-xl);
}

.status-panel {
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  background: var(--color-surface);
  padding: var(--spacing-md);
}

.status-badges {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-sm);
}

.status-badge-icon {
  width: 1rem;
  height: 1rem;
  vertical-align: -0.2rem;
  margin-right: 0.4rem;
}

.status-neutral {
  background-color: var(--color-background);
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

.status-warning {
  background-color: var(--color-background);
  color: var(--color-text);
  border: 1px solid var(--color-warning);
}

.status-line {
  margin: 0 0 var(--spacing-xs);
  color: var(--color-text);
}

.file-identity {
  margin-top: var(--spacing-xl);
}

.page-updated {
  margin-top: var(--spacing-xl);
  color: var(--color-text-light);
  font-size: 0.875rem;
}

/* ============================================
   Footer
   ============================================ */

.site-footer {
  background-color: var(--color-surface);
  border-top: 1px solid var(--color-border);
  padding: var(--spacing-xxl) 0 var(--spacing-lg);
  margin-top: var(--spacing-xxl);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-xl);
}

.footer-heading {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-sm);
}

.footer-subheading {
  font-size: 1rem;
  margin-bottom: var(--spacing-sm);
  color: var(--color-text);
}

.footer-text {
  color: var(--color-text-light);
  margin-bottom: var(--spacing-md);
}

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

.footer-links li {
  margin-bottom: var(--spacing-xs);
}

.footer-links a {
  color: var(--color-text-light);
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: var(--color-primary);
}

.footer-bottom {
  text-align: center;
  padding-top: var(--spacing-lg);
  border-top: 1px solid var(--color-border);
}

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

/* ============================================
   Utility Classes
   ============================================ */

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

.intro-text {
  margin-bottom: var(--spacing-xl);
}

.link-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-xl);
}

.link-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-md);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  transition: all var(--transition-fast);
  text-decoration: none;
  color: var(--color-text);
}

.link-card:hover {
  background-color: var(--color-primary);
  color: white;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.link-card-icon {
  font-size: 2rem;
}

.link-card-text {
  font-weight: 600;
  text-align: center;
}

.section-cta {
  text-align: center;
  margin-top: var(--spacing-xl);
}

/* ============================================
   Responsive Design
   ============================================ */

@media (max-width: 768px) {
  h1 { font-size: 2rem; }
  h2 { font-size: 1.75rem; }
  h3 { font-size: 1.25rem; }
  
  .section {
    padding: var(--spacing-xl) 0;
  }
  
  .card-grid,
  .products-grid,
  .gallery-grid {
    grid-template-columns: 1fr;
  }
  
  .feature-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
  }
}

@media (min-width: 769px) and (max-width: 1024px) {
  .card-grid,
  .products-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .gallery-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ============================================
   Print Styles
   ============================================ */

@media print {
  .site-header,
  .mobile-menu,
  .site-footer,
  .button,
  .breadcrumbs {
    display: none;
  }
  
  body {
    font-size: 12pt;
    color: #000;
  }
  
  a {
    color: #000;
    text-decoration: underline;
  }
}