/* Modern CSS Reset */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

/* CSS Custom Properties */
:root {
  --color-primary: #2563eb;
  --color-primary-hover: #1d4ed8;
  --color-secondary: #475569;
  --color-text: #1e293b;
  --color-text-light: #64748b;
  --color-bg: #ffffff;
  --color-bg-light: #f8fafc;
  --color-border: #e2e8f0;

  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: "SF Mono", Monaco, Consolas, "Liberation Mono", "Courier New", monospace;

  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-2xl: 4rem;
  --spacing-3xl: 6rem;

  --radius: 0.5rem;
  --max-width: 72rem;
}

/* Dark mode */
[data-theme="dark"] {
  --color-text: #e2e8f0;
  --color-text-light: #94a3b8;
  --color-bg: #0f172a;
  --color-bg-light: #1e293b;
  --color-border: #334155;
  --color-secondary: #cbd5e1;
}

[data-theme="dark"] .nav {
  background-color: rgba(15, 23, 42, 0.95);
}

[data-theme="dark"] .nav.scrolled {
  background-color: rgba(15, 23, 42, 0.98);
  border-bottom-color: var(--color-border);
}

[data-theme="dark"] .nav-menu {
  background-color: rgba(15, 23, 42, 0.98);
}


[data-theme="dark"] .card {
  background-color: var(--color-bg-light);
}

[data-theme="dark"] .faq details {
  background-color: var(--color-bg-light);
}

/* Base Styles */
html {
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  scroll-behavior: smooth;
  scroll-padding-top: 100px; /* Offset for fixed nav */
}

body {
  font-family: var(--font-sans);
  color: var(--color-text);
  background-color: var(--color-bg);
  padding: 0;
  padding-top: 140px; /* Extra space for wrapping nav on mobile */
}

/* Skip to content link */
.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--color-primary);
  color: white;
  padding: 8px 16px;
  text-decoration: none;
  z-index: 100;
  font-weight: 600;
}

.skip-link:focus {
  top: 0;
}

@media (min-width: 768px) {
  body {
    padding-top: 100px;
  }
}

@media (min-width: 1024px) {
  body {
    padding-top: 80px;
  }
}

/* Navigation */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background-color: rgba(255, 255, 255, 0.98);
  border-bottom: 1px solid transparent;
  transition: background-color 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

.nav.scrolled {
  background-color: rgba(255, 255, 255, 0.98);
  border-bottom-color: var(--color-border);
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
}

.nav-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: var(--spacing-sm) var(--spacing-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-lg);
  min-height: 70px;
}

@media (min-width: 768px) {
  .nav-container {
    min-height: 80px;
    padding: var(--spacing-md) var(--spacing-lg);
  }
}

.nav-logo {
  display: flex;
  align-items: center;
  text-decoration: none;
  transition: opacity 0.2s ease;
}

.nav-logo:hover {
  opacity: 0.8;
  text-decoration: none;
}

.nav-logo-img {
  height: 32px;
  width: auto;
}

@media (min-width: 768px) {
  .nav-logo-img {
    height: 40px;
  }
}

/* Light theme: show dark logo, hide white logo */
.logo-light {
  display: none;
}

.logo-dark {
  display: block;
}

/* Dark theme: show white logo, hide dark logo */
[data-theme="dark"] .logo-light {
  display: block;
}

[data-theme="dark"] .logo-dark {
  display: none;
}

.nav-menu {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  list-style: none;
  margin: 0;
  padding: 0;
}

@media (min-width: 768px) {
  .nav-menu {
    gap: var(--spacing-md);
  }
}

@media (min-width: 1024px) {
  .nav-menu {
    gap: var(--spacing-lg);
  }
}

.nav-menu li {
  display: flex;
  align-items: center;
}

.nav-menu a {
  font-size: 1rem;
  font-weight: 500;
  color: var(--color-text);
  text-decoration: none;
  transition: color 0.2s ease;
  padding: var(--spacing-xs);
  display: inline-flex;
  align-items: center;
  white-space: nowrap;
}

.nav-menu a:hover {
  color: var(--color-primary);
  text-decoration: none;
}

.nav-cta {
  background-color: var(--color-primary);
  color: white !important;
  padding: 0.5rem 1rem !important;
  border-radius: var(--radius);
  transition: background-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}

.nav-cta:hover {
  background-color: var(--color-primary-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

/* Mobile navigation toggle - hidden, no longer needed */
.nav-toggle {
  display: none;
}

/* Navigation Controls */
.nav-controls {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  margin-left: var(--spacing-md);
}

.theme-toggle {
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-xs);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text);
  transition: color 0.2s ease;
  width: 36px;
  height: 36px;
  border-radius: var(--radius);
}

.theme-toggle:hover {
  color: var(--color-primary);
  background-color: var(--color-bg-light);
}

.theme-toggle .moon-icon {
  display: none;
}

[data-theme="dark"] .theme-toggle .sun-icon {
  display: none;
}

[data-theme="dark"] .theme-toggle .moon-icon {
  display: block;
}

.lang-switch {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  font-weight: 500;
}

.lang-link {
  color: var(--color-text-light);
  text-decoration: none;
  transition: color 0.2s ease;
  cursor: pointer;
}

.lang-link:hover {
  color: var(--color-primary);
  text-decoration: none;
}

.lang-link.active {
  color: var(--color-primary);
  font-weight: 600;
  cursor: default;
}

.lang-separator {
  color: var(--color-border);
}

@media (max-width: 768px) {
  .nav-container {
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    justify-content: space-between;
  }

  .nav-logo {
    order: 1;
  }

  .nav-controls {
    order: 2;
    gap: var(--spacing-sm);
    margin-left: auto;
  }

  .nav-menu {
    order: 3;
    width: 100%;
    justify-content: center;
  }

  .nav-menu a {
    font-size: 0.875rem;
    padding: var(--spacing-xs) var(--spacing-sm);
  }
}

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

@media (min-width: 640px) {
  .container {
    padding: 0 var(--spacing-lg);
  }
}

@media (min-width: 1024px) {
  .container {
    padding: 0 var(--spacing-xl);
  }
}

@media (min-width: 1280px) {
  .container {
    padding: 0 var(--spacing-2xl);
  }
}

/* Typography */
h1 {
  font-size: 3rem;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: var(--spacing-md);
  color: var(--color-text);
}

@media (min-width: 768px) {
  h1 {
    font-size: 4.5rem;
  }
}

h2 {
  font-size: 2.25rem;
  font-weight: 600;
  line-height: 1.3;
  letter-spacing: -0.01em;
  margin-bottom: var(--spacing-lg);
  color: var(--color-text);
}

@media (min-width: 768px) {
  h2 {
    font-size: 2.75rem;
  }
}

h3 {
  font-size: 1.5rem;
  font-weight: 600;
  line-height: 1.4;
  margin-top: var(--spacing-lg);
  margin-bottom: var(--spacing-sm);
  color: var(--color-text);
}

p {
  font-size: 1.25rem;
  line-height: 1.7;
  margin-bottom: var(--spacing-md);
  color: var(--color-text);
}

strong {
  font-weight: 600;
  color: var(--color-text);
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--color-primary-hover);
  text-decoration: underline;
}

/* Lists */
ul, ol {
  margin: var(--spacing-lg) 0;
  padding-left: 0;
  list-style: none;
}

.section li,
.footer li {
  font-size: 1.25rem;
  line-height: 1.7;
  margin-bottom: var(--spacing-md);
  color: var(--color-text);
  padding-left: var(--spacing-lg);
  position: relative;
}

.section li::before,
.footer li::before {
  font-family: "Font Awesome 6 Free";
  content: "\f00c";
  font-weight: 900;
  color: var(--color-primary);
  font-size: 1rem;
  position: absolute;
  left: 0;
  top: 0.2em;
  line-height: 1;
}

.nav-menu li {
  padding-left: 0;
}

.nav-menu li::before {
  display: none;
}

li strong {
  font-weight: 600;
  color: var(--color-text);
}

.section ul,
.section ol {
  list-style: none;
  padding-left: 0;
}

.section li {
  margin-bottom: var(--spacing-lg);
}

/* Hero Section */
.hero {
  position: relative;
  text-align: center;
  width: 100%;
  padding: clamp(4rem, 15vh, 8rem) var(--spacing-lg) clamp(4rem, 15vh, 8rem);
  margin: var(--spacing-xl) 0;
  isolation: isolate;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0%;
  left: 50%;
  transform: translate(-50%, -50%) rotate(-6deg) scale(1.5);
  width: min(90vw, 800px);
  height: min(90vw, 800px);
  background-image: url('/assets/bg.jpg');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  mask-image: url('/assets/squircle.svg');
  mask-size: contain;
  mask-position: center;
  mask-repeat: no-repeat;
  -webkit-mask-image: url('/assets/squircle.svg');
  -webkit-mask-size: contain;
  -webkit-mask-position: center;
  -webkit-mask-repeat: no-repeat;
  z-index: -1;
  opacity: 0.2;
}

@media (min-width: 768px) {
  .hero::before {
    width: min(80vw, 1000px);
    height: min(80vw, 1000px);
  }
}

@media (min-width: 1024px) {
  .hero::before {
    width: min(70vw, 1200px);
    height: min(70vw, 1200px);
  }
}

.hero-logo {
  max-width: 90%;
  width: 250px;
  height: auto;
  margin: 0 auto var(--spacing-lg);
  display: block;
  filter: drop-shadow(0 4px 12px rgba(0, 0, 0, 0.3));
}

/* Dark theme (default): show white logo (hero-logo-light), hide dark logo */
.hero-logo-light {
  display: block;
}

.hero-logo-dark {
  display: none;
}

/* Light theme: show dark logo (hero-logo-dark), hide white logo */
[data-theme="light"] .hero-logo-light {
  display: none;
}

[data-theme="light"] .hero-logo-dark {
  display: block;
}

@media (min-width: 768px) {
  .hero-logo {
    width: 300px;
  }
}

@media (min-width: 1024px) {
  .hero-logo {
    width: 350px;
  }
}

.hero h1 {
  margin-bottom: var(--spacing-md);
  color: #ffffff;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.hero p {
  font-size: 1.25rem;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.95);
  max-width: 42rem;
  margin: 0 auto var(--spacing-lg);
  text-shadow: 0 1px 4px rgba(0, 0, 0, 0.2);
}

@media (min-width: 768px) {
  .hero {
    padding: clamp(6rem, 20vh, 12rem) var(--spacing-xl) clamp(6rem, 20vh, 12rem);
  }

  .hero h1 {
    font-size: 4rem;
  }

  .hero p {
    font-size: 1.375rem;
  }
}

/* Tagline styling in hero */
.hero p strong {
  display: block;
  font-size: 1.125rem;
  margin-top: var(--spacing-lg);
  color: rgba(255, 255, 255, 0.85);
  font-weight: 500;
  letter-spacing: 0.02em;
}

/* Light mode hero styling */
[data-theme="light"] .hero h1 {
  color: #000000;
  text-shadow: 0 2px 8px rgba(255, 255, 255, 0.3);
}

[data-theme="light"] .hero p {
  color: rgba(0, 0, 0, 0.95);
  text-shadow: 0 1px 4px rgba(255, 255, 255, 0.2);
}

[data-theme="light"] .hero p strong {
  color: rgba(0, 0, 0, 0.85);
}

[data-theme="light"] .hero-logo-dark {
  filter: drop-shadow(0 4px 12px rgba(0, 0, 0, 0.3));
}

[data-theme="dark"] .hero-logo-light {
  filter: drop-shadow(0 4px 12px rgba(255, 255, 255, 0.3));
}

/* Buttons */
.cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  justify-content: center;
  margin: var(--spacing-lg) 0;
}

.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  font-size: 1rem;
  font-weight: 500;
  text-decoration: none;
  border-radius: var(--radius);
  transition: background-color 0.2s ease, color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
  cursor: pointer;
  white-space: nowrap;
}

.btn-primary {
  background-color: var(--color-primary);
  color: white;
  box-shadow: 0 2px 8px rgba(37, 99, 235, 0.25);
}

.btn-primary:hover {
  background-color: var(--color-primary-hover);
  text-decoration: none;
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(37, 99, 235, 0.4);
}

.btn-secondary {
  background-color: rgba(255, 255, 255, 0.15);
  color: white;
  border: 2px solid rgba(255, 255, 255, 0.3);
}

.btn-secondary:hover {
  background-color: rgba(255, 255, 255, 0.2);
  border-color: rgba(255, 255, 255, 0.6);
  color: white;
  text-decoration: none;
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
}

/* Secondary buttons outside hero */
.section .btn-secondary,
footer .btn-secondary {
  background-color: transparent;
  color: var(--color-text);
  border: 2px solid var(--color-border);
}

.section .btn-secondary:hover,
footer .btn-secondary:hover {
  background-color: var(--color-bg-light);
  border-color: var(--color-secondary);
  color: var(--color-text);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

/* Divider */
.divider {
  display: none;
}

/* Sections */
.section {
  margin: var(--spacing-2xl) 0;
}

.section h2 {
  text-align: center;
  margin-bottom: var(--spacing-xl);
  position: relative;
  padding-bottom: var(--spacing-md);
}

/* Content Images */
.content-image {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius);
  margin: var(--spacing-xl) auto var(--spacing-lg);
  display: block;
}

@media (min-width: 768px) {
  .content-image {
    max-width: 600px;
  }
}

.section h2::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-primary-hover));
  border-radius: 2px;
}

/* Cards Grid */
.cards-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-xl);
  margin: var(--spacing-xl) 0;
}

@media (min-width: 640px) {
  .cards-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-2xl);
  }
}

.card {
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: var(--spacing-lg);
  transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}

.card:hover {
  border-color: var(--color-primary);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
  transform: translateY(-2px);
}

.card h3 {
  font-size: 1.125rem;
  font-weight: 600;
  line-height: 1.4;
  margin-top: 0;
  margin-bottom: var(--spacing-sm);
  color: var(--color-text);
}

.card p {
  font-size: 1rem;
  line-height: 1.6;
  margin-bottom: 0;
  color: var(--color-text-light);
}

.card-icon {
  font-size: 2.5rem;
  color: var(--color-primary);
  margin-bottom: var(--spacing-md);
  display: block;
}

/* FAQ Section */
.faq details {
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  margin-bottom: var(--spacing-md);
  padding: var(--spacing-md) var(--spacing-lg);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.faq details:hover {
  border-color: var(--color-primary);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.faq details[open] {
  border-color: var(--color-primary);
  box-shadow: 0 2px 12px rgba(37, 99, 235, 0.1);
}

.faq summary {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-text);
  cursor: pointer;
  list-style: none;
  padding: var(--spacing-xs) 0;
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  user-select: none;
}

.faq summary::-webkit-details-marker {
  display: none;
}

.faq summary::before {
  content: '▶';
  display: inline-block;
  width: 1em;
  font-size: 0.875rem;
  color: var(--color-primary);
  transition: transform 0.2s ease;
  flex-shrink: 0;
}

.faq details[open] summary::before {
  transform: rotate(90deg);
}

.faq details p {
  margin-top: var(--spacing-md);
  margin-bottom: 0;
  padding-left: calc(1em + var(--spacing-sm));
  font-size: 1rem;
  line-height: 1.7;
  color: var(--color-text-light);
}

/* CTA Section */
.cta-section {
  text-align: center;
  padding: var(--spacing-xl) 0;
}

/* Footer */
.footer {
  text-align: center;
  padding: var(--spacing-xl) 0 var(--spacing-lg);
  color: var(--color-text-light);
}

.footer .credits {
  font-size: 1rem;
  margin-bottom: var(--spacing-md);
}

.footer-logo {
  margin: var(--spacing-lg) 0;
}

.fod-logo {
  height: 60px;
  width: auto;
  opacity: 0.8;
  transition: opacity 0.2s ease;
}

.fod-logo:hover {
  opacity: 1;
}

[data-theme="dark"] .fod-logo {
  filter: brightness(0) invert(1);
}

.footer .contact {
  font-size: 1rem;
  margin-top: var(--spacing-md);
}

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

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

/* Responsive adjustments */
@media (max-width: 640px) {
  .cta-group {
    flex-direction: column;
    align-items: stretch;
  }

  .btn {
    width: 100%;
    text-align: center;
  }
}

/* Subtle background for alternating sections */
main .section:nth-of-type(even) {
  background-color: var(--color-bg-light);
  padding: var(--spacing-2xl);
  margin-left: calc(-1 * var(--spacing-md));
  margin-right: calc(-1 * var(--spacing-md));
  border-radius: var(--radius);
}

@media (min-width: 768px) {
  main .section:nth-of-type(even) {
    margin-left: calc(-1 * var(--spacing-lg));
    margin-right: calc(-1 * var(--spacing-lg));
    padding: var(--spacing-2xl) var(--spacing-xl);
  }
}

/* News Section */
.news-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-xl);
  margin-top: var(--spacing-xl);
}

@media (min-width: 640px) {
  .news-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-2xl);
  }
}

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

.news-card {
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: var(--spacing-lg);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}

.news-card:hover {
  border-color: var(--color-primary);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
  transform: translateY(-2px);
}

[data-theme="dark"] .news-card {
  background-color: var(--color-bg-light);
}

.news-card-date {
  font-size: 0.875rem;
  color: var(--color-text-light);
  font-weight: 500;
}

.news-card h3 {
  font-size: 1.5rem;
  font-weight: 600;
  line-height: 1.4;
  margin: 0;
  color: var(--color-text);
}

.news-card-teaser {
  font-size: 1.125rem;
  color: var(--color-text-light);
  line-height: 1.6;
  flex-grow: 1;
  margin: 0;
}

.news-card .btn {
  margin-top: var(--spacing-sm);
  align-self: flex-start;
}

/* News Article Detail Page */
.news-article {
  max-width: 48rem;
  margin: 0 auto;
  padding: var(--spacing-2xl) 0;
}

.news-header {
  margin-bottom: var(--spacing-2xl);
}

.news-back {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  color: var(--color-primary);
  text-decoration: none;
  font-weight: 500;
  margin-bottom: var(--spacing-lg);
  transition: color 0.2s ease;
}

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

.news-date {
  display: block;
  font-size: 0.875rem;
  color: var(--color-text-light);
  font-weight: 500;
  margin-bottom: var(--spacing-sm);
}

.news-header h1 {
  margin-bottom: 0;
}

.news-content {
  font-size: 1.125rem;
  line-height: 1.8;
  color: var(--color-text);
}

.news-content p {
  margin-bottom: var(--spacing-lg);
}

.news-content h2 {
  margin-top: var(--spacing-2xl);
  margin-bottom: var(--spacing-md);
}

.news-content h3 {
  margin-top: var(--spacing-xl);
  margin-bottom: var(--spacing-sm);
}

.news-content ul,
.news-content ol {
  margin-bottom: var(--spacing-lg);
  padding-left: var(--spacing-xl);
}

.news-content li {
  margin-bottom: var(--spacing-sm);
}

.news-content a {
  color: var(--color-primary);
  text-decoration: underline;
  transition: color 0.2s ease;
}

.news-content a:hover {
  color: var(--color-primary-hover);
}

.news-content img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius);
  margin: var(--spacing-xl) 0;
}

.news-content blockquote {
  border-left: 4px solid var(--color-primary);
  padding-left: var(--spacing-lg);
  margin: var(--spacing-xl) 0;
  font-style: italic;
  color: var(--color-text-light);
}

/* Print styles */
@media print {
  body {
    padding: 0;
    font-size: 12pt;
  }

  .btn {
    border: 1px solid var(--color-text);
    color: var(--color-text);
  }

  a {
    color: var(--color-text);
  }

  .divider {
    margin: 2rem 0;
  }

  .section:nth-child(even) {
    background-color: transparent;
  }
}