:root {
  --color-navy: #0b1f3a;
  --color-charcoal: #1c1c1c;
  --color-ivory: #f5f5f0;
  --color-gold: #c5a46d;
  --color-gold-hover: #b19362;
  --color-white: #ffffff;

  --font-serif: "Playfair Display", serif;
  --font-sans: "Inter", sans-serif;

  --transition-smooth: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
}

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

body {
  font-family: var(--font-sans);
  background-color: var(--color-ivory);
  color: var(--color-charcoal);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-serif);
  font-weight: 700;
  color: var(--color-navy);
  margin-bottom: 1rem;
}

p {
  font-size: 1.125rem;
  margin-bottom: 1.25rem;
  color: var(--color-charcoal);
}

a {
  text-decoration: none;
  color: var(--color-navy);
  transition: var(--transition-smooth);
}

a:hover {
  color: var(--color-gold);
}

/* Utilities */
.container {
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
}

.text-gold { color: var(--color-gold); }
.text-navy { color: var(--color-navy); }
.bg-navy { background-color: var(--color-navy); color: var(--color-ivory); }
.bg-navy h1, .bg-navy h2, .bg-navy h3, .bg-navy h4, .bg-navy p { color: var(--color-ivory); }

/* Buttons */
.btn {
  display: inline-block;
  padding: 0.75rem 2rem;
  background-color: var(--color-gold);
  color: var(--color-navy);
  font-family: var(--font-sans);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.btn:hover {
  background-color: var(--color-navy);
  color: var(--color-gold);
}

/* Gateway Page */
.gateway-wrapper {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-navy);
  position: relative;
  overflow: hidden;
}

.gateway-wrapper::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: url('../gateway/gateway_images/hero.jpg') center/cover no-repeat;
  opacity: 0.15;
  z-index: 1;
}

.gateway-box {
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(10px);
  padding: 3rem 2rem;
  border-radius: 12px;
  border: 1px solid rgba(197, 164, 109, 0.3);
  text-align: center;
  z-index: 2;
  width: 100%;
  max-width: 400px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
  transform: translateY(20px);
  opacity: 0;
  animation: fadeUp 1s forwards ease-out;
}

@keyframes fadeUp {
  to { opacity: 1; transform: translateY(0); }
}

.gateway-box h1 {
  color: var(--color-gold);
  font-size: 1.8rem;
  margin-bottom: 0.5rem;
}

.gateway-box p {
  color: var(--color-ivory);
  font-size: 0.9rem;
  margin-bottom: 2rem;
  opacity: 0.8;
}

.input-group {
  position: relative;
  margin-bottom: 1.5rem;
}

.gateway-input {
  width: 100%;
  padding: 1rem;
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 6px;
  color: var(--color-ivory);
  font-family: var(--font-sans);
  font-size: 1rem;
  transition: var(--transition-smooth);
  text-align: center;
  letter-spacing: 2px;
}

.gateway-input:focus {
  outline: none;
  border-color: var(--color-gold);
  background: rgba(255, 255, 255, 0.1);
}

.gateway-input::placeholder {
  color: rgba(255, 255, 255, 0.5);
  letter-spacing: 1px;
}

.gateway-btn {
  width: 100%;
  padding: 1rem;
  background-color: var(--color-gold);
  color: var(--color-navy);
  border: none;
  font-weight: bold;
  font-family: var(--font-sans);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  border-radius: 6px;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.gateway-btn:hover {
  background-color: var(--color-ivory);
}

.error-message {
  color: #ff6b6b;
  font-size: 0.85rem;
  margin-top: -1rem;
  margin-bottom: 1rem;
  display: none;
  animation: shake 0.4s;
}

@keyframes shake {
  0% { transform: translateX(0); }
  25% { transform: translateX(-5px); }
  50% { transform: translateX(5px); }
  75% { transform: translateX(-5px); }
  100% { transform: translateX(0); }
}

/* Header & Nav */
.site-header {
  position: fixed;
  top: 0;
  width: 100%;
  background-color: rgba(11, 31, 58, 0.95);
  backdrop-filter: blur(10px);
  z-index: 1000;
  padding: 1rem 0;
  transition: var(--transition-smooth);
  border-bottom: 1px solid rgba(197, 164, 109, 0.2);
}

.site-header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  color: var(--color-gold);
  font-size: 1.5rem;
  font-family: var(--font-serif);
  font-weight: 700;
  letter-spacing: 1px;
}

.logo span {
  color: var(--color-ivory);
  font-family: var(--font-sans);
  font-size: 0.8rem;
  display: block;
  letter-spacing: 2px;
  margin-top: 0.2rem;
  text-transform: uppercase;
}
.logo:hover {
    color: var(--color-ivory);
}

.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
}

.nav-links a {
  color: var(--color-ivory);
  font-family: var(--font-sans);
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  font-weight: 500;
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  width: 0;
  height: 2px;
  background: var(--color-gold);
  bottom: -4px;
  left: 0;
  transition: var(--transition-smooth);
}

.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}

.nav-links a:hover {
  color: var(--color-gold);
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  flex-direction: column;
  gap: 5px;
}

.mobile-menu-btn span {
  width: 25px;
  height: 2px;
  background-color: var(--color-gold);
  transition: var(--transition-smooth);
}

/* Hero Sections */
.hero {
  height: 60vh;
  min-height: 400px;
  display: flex;
  align-items: center;
  position: relative;
  margin-top: 80px; /* Header offset */
  background-color: var(--color-navy);
  color: var(--color-ivory);
  overflow: hidden;
}

.hero-home {
  height: 90vh;
  margin-top: 0; /* Home has transparent sticky header */
}

.hero-bg {
  position: absolute;
  top: 0; left: 0; width: 100%; height: 100%;
  object-fit: cover;
  opacity: 0.4;
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 800px;
}

.hero-content h1 {
  font-size: 4rem;
  line-height: 1.1;
  color: var(--color-ivory);
  margin-bottom: 1rem;
  opacity: 0;
  transform: translateY(30px);
  animation: fadeUp 1s 0.2s forwards;
}

.hero-content p {
  font-size: 1.2rem;
  color: var(--color-gold);
  margin-bottom: 2rem;
  font-weight: 300;
  letter-spacing: 1px;
  opacity: 0;
  transform: translateY(30px);
  animation: fadeUp 1s 0.4s forwards;
}

/* Asymmetrical Layout Blocks */
.section-padding {
  padding: 6rem 0;
}

.grid-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.grid-split-alt {
  display: grid;
  grid-template-columns: 5fr 7fr;
  gap: 5rem;
  align-items: start;
}

.grid-layered {
  position: relative;
  padding: 4rem 0;
}

.grid-layered::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 70%;
  height: 100%;
  background-color: var(--color-white);
  z-index: -1;
}

.img-fluid {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 4px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

/* Cards & Timelines */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.card {
  background: var(--color-white);
  padding: 3rem 2rem;
  border-top: 3px solid var(--color-gold);
  box-shadow: 0 10px 30px rgba(0,0,0,0.05);
  transition: var(--transition-smooth);
}

.card:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 40px rgba(0,0,0,0.1);
}

.card h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

/* Footer */
.site-footer {
  background-color: var(--color-navy);
  color: var(--color-ivory);
  padding: 4rem 0 2rem;
  border-top: 3px solid var(--color-gold);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-col h4 {
  color: var(--color-gold);
  margin-bottom: 1.5rem;
  font-size: 1.2rem;
}

.footer-col p, .footer-col a {
  color: rgba(245, 245, 240, 0.7);
  font-size: 0.95rem;
  margin-bottom: 0.5rem;
  display: block;
}

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

.footer-bottom {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
  font-size: 0.85rem;
  color: rgba(245, 245, 240, 0.6);
  margin-bottom: 0;
}

.footer-bottom a {
  color: var(--color-gold);
  font-weight: bold;
}

/* Animations */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: all 0.8s ease-out;
}

.reveal.active {
  opacity: 1;
  transform: translateY(0);
}

/* Responsive */
@media (max-width: 992px) {
  .hero-content h1 { font-size: 3rem; }
  .grid-split, .grid-split-alt { grid-template-columns: 1fr; gap: 3rem; }
  .grid-layered::before { width: 100%; }
}

@media (max-width: 768px) {
  .nav-links {
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background-color: rgba(11, 31, 58, 0.98);
    flex-direction: column;
    padding: 2rem;
    gap: 1.5rem;
    text-align: center;
    clip-path: polygon(0 0, 100% 0, 100% 0, 0 0);
    transition: var(--transition-smooth);
  }
  
  .nav-links.active {
    clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%);
  }

  .mobile-menu-btn { display: flex; }
  .hero-content h1 { font-size: 2.5rem; }
  .footer-grid { grid-template-columns: 1fr; }
}