:root {
  --color-navy: #002147;
  --color-gold: #c5a059;
  --color-gold-dark: #b8860b;
  --color-bg: #ffffff;
  --color-bg-subtle: #f8f7f4;
  --color-text-muted: #4a5568;
  --font-heading: "Playfair Display", Georgia, serif;
  --font-body: "Source Sans 3", system-ui, sans-serif;
  --shadow-card: 0 4px 24px rgba(0, 33, 71, 0.08);
  --radius: 4px;
  --transition: 0.2s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.6;
  color: var(--color-navy);
  background: var(--color-bg);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

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

a {
  color: var(--color-gold-dark);
  text-decoration: none;
  transition: color var(--transition);
}

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

/* Typography */

h1,
h2,
h3 {
  font-family: var(--font-heading);
  font-weight: 600;
  line-height: 1.25;
}

/* Buttons */

.btn {
  display: inline-block;
  padding: 0.875rem 2rem;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
}

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

.btn-gold:hover {
  background: var(--color-gold-dark);
  color: var(--color-navy);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(197, 160, 89, 0.35);
}

.btn-gold:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

/* Section divider */

.section-divider {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  padding: 0 1.5rem;
}

.section-divider::before,
.section-divider::after {
  content: "";
  flex: 1;
  max-width: 120px;
  height: 1px;
  background: var(--color-gold);
}

/* Hero */

.hero {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 4rem 1.5rem 3rem;
  min-height: 70vh;
}

.hero__logo {
  width: min(280px, 70vw);
  margin-bottom: 2.5rem;
}

.hero__tagline {
  font-family: var(--font-heading);
  font-size: clamp(1.5rem, 4vw, 2rem);
  color: var(--color-navy);
  max-width: 640px;
  margin-bottom: 1rem;
}

.hero__subtext {
  color: var(--color-text-muted);
  max-width: 560px;
  margin-bottom: 2.5rem;
  font-size: 1.0625rem;
}

/* Contact */

.contact {
  background: var(--color-bg-subtle);
  padding: 4rem 1.5rem;
}

.contact__inner {
  max-width: 520px;
  margin: 0 auto;
}

.contact__heading {
  font-family: var(--font-heading);
  font-size: clamp(1.375rem, 3vw, 1.75rem);
  text-align: center;
  margin-bottom: 0.5rem;
}

.contact__subheading {
  text-align: center;
  color: var(--color-text-muted);
  margin-bottom: 2rem;
  font-size: 0.9375rem;
}

.contact__card {
  background: var(--color-bg);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  padding: 2rem;
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 0.375rem;
  color: var(--color-navy);
}

.form-group label .optional {
  font-weight: 400;
  color: var(--color-text-muted);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  font-family: var(--font-body);
  font-size: 1rem;
  border: 1px solid #d1d5db;
  border-radius: var(--radius);
  background: var(--color-bg);
  color: var(--color-navy);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-gold);
  box-shadow: 0 0 0 3px rgba(197, 160, 89, 0.25);
}

.form-group textarea {
  min-height: 120px;
  resize: vertical;
}

.form-group input.invalid,
.form-group textarea.invalid {
  border-color: #c53030;
}

.form-actions {
  margin-top: 1.5rem;
}

.form-actions .btn {
  width: 100%;
}

.form-message {
  margin-top: 1rem;
  padding: 0.75rem 1rem;
  border-radius: var(--radius);
  font-size: 0.9375rem;
  display: none;
}

.form-message.visible {
  display: block;
}

.form-message.success {
  background: #f0fff4;
  color: #276749;
  border: 1px solid #9ae6b4;
}

.form-message.error {
  background: #fff5f5;
  color: #c53030;
  border: 1px solid #feb2b2;
}

.contact__email {
  text-align: center;
  margin-top: 1.5rem;
  font-size: 0.9375rem;
  color: var(--color-text-muted);
}

.contact__email a {
  color: var(--color-navy);
  font-weight: 600;
}

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

#contact-reveal[hidden] {
  display: none;
}

#contact-reveal.is-revealed {
  animation: contactReveal 0.35s ease;
}

@keyframes contactReveal {
  from {
    opacity: 0;
    transform: translateY(12px);
  }

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

/* Footer */

.footer {
  background: var(--color-navy);
  color: rgba(255, 255, 255, 0.85);
  text-align: center;
  padding: 1.25rem 1.5rem;
  font-size: 0.8125rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border-top: 3px solid var(--color-gold);
}

/* Error pages */

.error-page {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 4rem 1.5rem;
  min-height: calc(100vh - 60px);
}

.error-page__logo {
  width: min(160px, 40vw);
  margin-bottom: 2rem;
}

.error-page__code {
  font-family: var(--font-heading);
  font-size: clamp(3rem, 10vw, 5rem);
  color: var(--color-navy);
  line-height: 1;
  margin-bottom: 0.75rem;
}

.error-page__message {
  color: var(--color-text-muted);
  font-size: 1.0625rem;
  margin-bottom: 2rem;
  max-width: 400px;
}

/* Responsive */

@media (max-width: 480px) {
  .hero {
    padding: 3rem 1.25rem 2rem;
    min-height: 60vh;
  }

  .hero__logo {
    width: min(220px, 75vw);
    margin-bottom: 2rem;
  }

  .contact {
    padding: 3rem 1.25rem;
  }

  .contact__card {
    padding: 1.5rem;
  }
}