/* ─── CSS Variables & Global Styles ────────────────────────────────── */
:root {
  /* Color Palette from Logo */
  --primary-blue: #0b5f88;
  --primary-green: #3aa57a;
  --accent-yellow: #ffc400;
  --accent-yellow-light: #fff2c7;

  /* Neutrals */
  --text-dark: #171a20;
  --text-medium: #5c5f62;
  --text-light: #ffffff;
  --background-light: #f8f9fa;
  --background-white: #ffffff;
  --border-color: #dee2e6;
  --footer-bg: #2f3e4c; /* Dark slate-grey footer background */

  /* UI */
  --header-bg: var(--background-white);
  --header-height: 70px; /* Define header height */
  --font-family: 'Inter', sans-serif;

  /* Safe Area Insets */
  --safe-area-inset-top: env(safe-area-inset-top, 0px);
  --safe-area-inset-right: env(safe-area-inset-right, 0px);
  --safe-area-inset-bottom: env(safe-area-inset-bottom, 0px);
  --safe-area-inset-left: env(safe-area-inset-left, 0px);
}

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

html {
  scroll-behavior: smooth;
}

body {
  color: var(--text-dark);
  line-height: 1.6;
  font-family: var(--font-family);
  background-color: var(--background-light);
}

body.no-scroll {
  overflow: hidden;
}

.btn-primary, .btn-secondary, .btn-outline {
  display: inline-block;
  padding: 0.75rem 1.75rem;
  font-size: 0.95rem;
  font-weight: 600;
  text-align: center;
  text-decoration: none;
  border-radius: 50px;
  border: 1px solid transparent;
  transition: all 0.2s ease-in-out;
  cursor: pointer;
}
.btn-primary { color: var(--text-light); background-color: var(--primary-blue); border-color: var(--primary-blue); }
.btn-primary:hover { background-color: #004b71; border-color: #004b71; transform: translateY(-2px); box-shadow: 0 4px 10px rgba(0,0,0,0.1); }
.btn-outline { color: var(--primary-blue); background-color: transparent; border: 1px solid var(--primary-blue); }
.btn-outline:hover { color: var(--text-light); background-color: var(--primary-blue); }
.btn-secondary { color: var(--text-dark); background-color: transparent; border: 1px solid var(--text-dark); }
.btn-secondary:hover { color: var(--text-light); background-color: var(--text-dark); }

/* ─── Header & Navigation ────────────────────────────────────────────── */
header {
  position: sticky;
  top: 0;
  width: 100%;
  background-color: var(--header-bg);
  box-shadow: 0 2px 4px rgba(0,0,0,0.05);
  z-index: 1000;
  padding-top: var(--safe-area-inset-top);
}

nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1200px;
  margin: 0 auto;
  height: var(--header-height);
  padding: 0 1.5rem;
  padding-left: calc(1.5rem + var(--safe-area-inset-left));
  padding-right: calc(1.5rem + var(--safe-area-inset-right));
}

.logo img {
  display: block;
  height: 35px;
  width: auto;
}

.nav-container {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-links {
  list-style: none;
  display: flex;
  gap: 1.75rem;
}

.nav-links a {
  position: relative;
  display: block;
  text-decoration: none;
  color: var(--text-medium);
  font-size: 0.95rem;
  font-weight: 500;
  padding: 0.25rem 0;
  transition: color 0.2s ease-in-out;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--primary-green);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform 0.3s ease;
}

.nav-links a:hover,
.nav-links a:focus,
.nav-links a.current-page {
  color: var(--text-dark);
}

.nav-links a:hover::after,
.nav-links a:focus::after,
.nav-links a.current-page::after {
  transform: scaleX(1);
}

.nav-links a.current-page {
  font-weight: 600;
}

/* Auth Actions */
.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.icon-btn {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.25rem;
  color: var(--text-medium);
  text-decoration: none;
  padding: 0.5rem;
  border-radius: 8px;
  transition: color 0.2s ease, background-color 0.2s ease;
}

.icon-btn:hover,
.icon-btn:focus {
  color: var(--primary-blue);
  background-color: #f0f3f5;
}

.icon-btn .icon-text {
  font-size: 0.9rem;
  font-weight: 500;
}

/* --- Mobile Specifics --- */
.mobile-header {
  display: none;
  align-items: center;
  gap: 0.5rem;
}

.burger-menu {
  background: none;
  border: none;
  font-size: 1.75rem;
  cursor: pointer;
  color: var(--text-dark);
  padding: 0.5rem;
  z-index: 1010; /* Above nav container */
}

.nav-links .mobile-only-li {
  display: none;
}

/* ─── Responsive Navigation ────────────────────────────────────────── */
@media (max-width: 768px) {
  .logo img {
    height: 30px;
  }

  .nav-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    padding-top: var(--header-height);
    background-color: var(--background-white);
    flex-direction: column;
    align-items: flex-start;
    justify-content: flex-start;
    gap: 0;
    transform: translateX(100%);
    transition: transform 0.35s ease-in-out;
    overflow-y: auto;
  }
  
  .nav-container.show {
    transform: translateX(0);
  }

  .nav-links {
    flex-direction: column;
    width: 100%;
    gap: 0;
    padding: 1rem 0;
    border-bottom: 1px solid var(--border-color);
  }

  .nav-links li {
    width: 100%;
  }
  
  .nav-links a {
    display: block;
    width: 100%;
    padding: 1rem 1.5rem;
    font-size: 1.1rem;
    font-weight: 500;
  }
  
  .nav-links a::after {
    display: none;
  }

  .nav-links a.current-page {
    color: var(--primary-green);
    font-weight: 600;
  }

  .nav-links .mobile-only-li {
    display: list-item;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
  }

  .nav-container .nav-actions {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    width: 100%;
    padding: 1.5rem;
  }

  .nav-container .icon-btn {
    width: 100%;
    font-size: 1.1rem;
    padding: 1rem 0;
  }
  
  .mobile-header {
    display: flex;
  }
  
  .mobile-auth-icon {
    font-size: 1.35rem;
    padding: 0.5rem;
  }
  .mobile-auth-icon .icon-text {
      display: none;
  }
}

/* ─── Footer ─────────────────────────────────────────────────────────── */
.site-footer {
  background-color: var(--footer-bg);
  color: rgba(255, 255, 255, 0.7);
  padding: 4rem 1.5rem 2rem;
  font-size: 0.95rem;
}

.footer-container {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 2rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-about .footer-logo img {
  height: 30px;
  margin-bottom: 0.75rem;
}

.footer-about p {
  max-width: 350px;
  line-height: 1.5;
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.7);
}

.footer-links h4, .footer-social h4 {
  color: var(--text-light);
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
}

.footer-links ul {
  list-style: none;
}

.footer-links li:not(:last-child) {
  margin-bottom: 0.5rem;
}

.footer-links a {
  text-decoration: none;
  color: rgba(255, 255, 255, 0.7);
  transition: color 0.2s ease;
}

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

.social-icons {
  display: flex;
  gap: 1.25rem;
}

.social-icons a {
  color: rgba(255, 255, 255, 0.7);
  font-size: 1.2rem;
  transition: color 0.2s ease, transform 0.2s ease;
}

.social-icons a:hover {
  color: var(--accent-yellow);
  transform: translateY(-2px);
}

.footer-bottom {
  text-align: center;
  padding-top: 1.5rem;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.5);
}

@media (max-width: 768px) {
  .footer-container {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .footer-about p {
    margin: 0 auto 1.5rem;
  }
  .social-icons {
    justify-content: center;
  }
  .footer-about .footer-logo img {
    margin-left: 22px;
  }
}