/* CSS Variables & Reset */
:root {
  --color-primary-dark-blue: #0A1A3F;
  --color-electric-blue: #2F80ED;
  --color-accent-yellow: #FFC700;
  --color-white: #FFFFFF;
  --color-light-grey: #F5F7FA;
  --color-text-dark: #1A1A1A;

  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2.5rem;
  --spacing-xl: 4rem;

  /* Fonts */
  --font-heading: 'Space Grotesk', sans-serif;
  --font-body: 'Inter', sans-serif;

  /* Breakpoints */
  --bp-tablet: 768px;
  --bp-desktop: 1200px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  background-color: var(--color-primary-dark-blue);
  color: var(--color-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.6;
  color: var(--color-white);
  overflow-x: hidden;
}

h1, h2, h3, h4, h5 {
  font-family: var(--font-heading);
  margin: 0 0 var(--spacing-sm) 0;
  color: var(--color-white);
}

a {
  text-decoration: none;
  color: inherit;
}

a:focus-visible,
button:focus-visible,
input:focus-visible {
  outline: 3px solid var(--color-accent-yellow);
  outline-offset: 3px;
}

/* Container */
.container {
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--spacing-sm);
  padding-right: var(--spacing-sm);
}

/* Utility */
.sr-only {
  border: 0 !important;
  clip: rect(1px, 1px, 1px, 1px) !important;
  -webkit-clip-path: inset(50%) !important;
  clip-path: inset(50%) !important;
  height: 1px !important;
  margin: -1px !important;
  overflow: hidden !important;
  padding: 0 !important;
  position: absolute !important;
  width: 1px !important;
  white-space: nowrap !important;
}

/* NAVIGATION */

.nav-container {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 26, 63, 0.5);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid rgba(255, 199, 0, 0.15);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-sm) var(--spacing-md);
  max-width: 1200px;
  margin: 0 auto;
}

/* Logo styling with controlled max size */
.nav-logo {
  display: flex;
  align-items: center;
  max-width: 140px; /* increase max width to make logo larger */
  padding: 0.25rem 0;
}

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

.nav-logo-text {
  user-select: none;
  font-family: var(--font-heading);
}

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

.nav-item {
  position: relative;
  font-weight: 600;
  font-family: var(--font-heading);
  cursor: pointer;
}

.nav-link {
  color: var(--color-white);
  padding: 0.5rem 0;
  white-space: nowrap;
  user-select: none;
  display: inline-block;
}

.nav-item.has-dropdown > .nav-link::after {
  content: "▼";
  font-size: 0.5rem;
  margin-left: 0.25em;
  color: var(--color-accent-yellow);
}

/* DROPDOWN MENU BASE */
.dropdown-menu {
  list-style: none;
  margin: 0;
  padding: 0;
  position: absolute;
  top: 100%;
  left: 0;
  background-color: var(--color-primary-dark-blue);
  border-radius: 12px;
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.25);
  padding: 1.5rem 2rem;
  min-width: 480px;
  z-index: 1000;
  font-family: var(--font-heading);
  color: var(--color-white);
  font-weight: 600;
  display: none;
  grid-gap: 1rem 3rem;
  grid-template-columns: repeat(3, 1fr);
}

/* SHOW DROPDOWN MENU */
.nav-item:focus-within > .dropdown-menu,
.nav-item:hover > .dropdown-menu,
.nav-item[aria-expanded="true"] > .dropdown-menu {
  display: grid;
}

/* DROPDOWN LINK STYLES */
.mega-menu .dropdown-link {
  display: block;
  padding: 0.5rem 0;
  color: var(--color-white);
  white-space: nowrap;
  text-decoration: none;
  user-select: none;
  font-weight: 600;
}

.mega-menu .dropdown-link:hover,
.mega-menu .dropdown-link:focus-visible {
  color: var(--color-accent-yellow);
  text-decoration: underline;
  outline: none;
}

/* Ensure no bullets on dropdown menus */
.dropdown-menu li {
  list-style: none;
  padding-left: 0;
  margin-bottom: 0.5rem;
}

/* Nav links styling */
.nav-link {
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  user-select: none;
  position: relative;
}

.nav-link::after {
  content: "▼";
  font-size: 0.5rem;
  color: var(--color-accent-yellow);
  margin-left: 4px;
  font-weight: 700;
}

/* NAVIGATION ACTION BUTTONS */
.nav-actions {
  display: flex;
  gap: 1rem;
  align-items: center;
}

.btn {
  border-radius: 32px;
  font-weight: 600;
  cursor: pointer;
  font-family: var(--font-body);
  font-size: 0.9rem;
  padding: 0.6rem 1.8rem;
  transition: background-color 0.3s ease, box-shadow 0.3s ease;
  user-select: none;
  border: 2px solid transparent;
  white-space: nowrap;
}

.btn-primary {
  background-color: var(--color-electric-blue);
  color: var(--color-white);
  border-color: var(--color-electric-blue);
  box-shadow: 0 4px 14px rgba(47, 128, 237, 0.6);
}

.btn-primary:hover,
.btn-primary:focus-visible {
  background-color: #1a60ce;
  box-shadow: 0 6px 20px rgba(33, 96, 206, 0.8);
}

.btn-outline {
  background-color: transparent;
  border-color: var(--color-white);
  color: var(--color-white);
}

.btn-outline:hover,
.btn-outline:focus-visible {
  background-color: var(--color-accent-yellow);
  color: var(--color-primary-dark-blue);
  border-color: var(--color-accent-yellow);
}

.btn-secondary {
  background-color: transparent;
  border: 2px solid var(--color-white);
  color: var(--color-white);
}

.btn-secondary:hover,
.btn-secondary:focus-visible {
  background-color: var(--color-electric-blue);
  color: var(--color-white);
  border-color: var(--color-electric-blue);
}

.btn-tertiary {
  background-color: transparent;
  color: var(--color-white);
  border: none;
  padding-left: 0;
  font-weight: 500;
  letter-spacing: 0.02em;
}

.btn-tertiary:hover,
.btn-tertiary:focus-visible {
  text-decoration: underline;
}

/* HAMBURGER MENU */

.hamburger {
  display: none;
  flex-direction: column;
  gap: 6px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}

.hamburger span {
  width: 28px;
  height: 3px;
  background: var(--color-white);
  border-radius: 2px;
  transition: all 0.3s ease;
}

.hamburger.open span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.open span:nth-child(2) {
  opacity: 0;
}

.hamburger.open span:nth-child(3) {
  transform: rotate(-45deg) translate(6px, -6px);
}

/* MOBILE NAVIGATION */

@media (max-width: var(--bp-tablet)) {
  .nav-menu {
    position: fixed;
    top: 56px;
    right: 0;
    background: var(--color-primary-dark-blue);
    border-radius: 0 0 0 8px;
    flex-direction: column;
    width: 260px;
    height: calc(100vh - 56px);
    padding-top: var(--spacing-lg);
    transform: translateX(100%);
    transition: transform 0.3s ease;
    overflow-y: auto;
  }

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

  .nav-item.has-dropdown > ul.dropdown-menu {
    position: static;
    box-shadow: none;
    background: transparent;
    padding-left: var(--spacing-md);
    display: none;
  }

  .nav-item.has-dropdown[aria-expanded="true"] > ul.dropdown-menu {
    display: block;
  }

  .nav-actions {
    display: none;
  }

  .hamburger {
    display: flex;
  }
}

/* Hero section styles */

.hero {
  min-height: 100vh; /* full viewport height */
  background: linear-gradient(135deg, var(--color-primary-dark-blue) 0%, #162c5b 100%);
  color: var(--color-white);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
  padding: 4rem 2rem;
  font-family: var(--font-heading);
  text-align: left;
  user-select: text;
}

.hero h1 {
  font-size: 3.5rem;
  line-height: 1.1;
  max-width: 600px;
  margin-bottom: 1rem;
}

.hero p {
  font-family: var(--font-body);
  font-size: 1.25rem;
  max-width: 520px;
  line-height: 1.4;
  margin-bottom: 2rem;
}

.hero > div {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

/* Responsive font scaling */

@media (max-width: 1024px) {
  .hero h1 {
    font-size: 2.75rem;
  }
  .hero p {
    font-size: 1.1rem;
    max-width: 100%;
  }
}

@media (max-width: 480px) {
  .hero h1 {
    font-size: 2rem;
  }
  .hero p {
    font-size: 1rem;
  }
  .hero > div {
    flex-direction: column; 
    align-items: stretch;
  }
}