/*
 * Global styles for the EGS Capital homepage.
 *
 * Typography is a critical part of the brand. We define sizes in points (converted to pixels) and
 * apply explicit letter-spacing values to approximate the design used on the Wix prototype. Avenir
 * Light is referenced directly (use a locally installed font on the viewer’s system if available).
 * Libre Baskerville is loaded via Google Fonts in index.html. The site uses a strict typographic
 * rhythm and generous spacing to maintain clarity and a traditional feel.
 */

/* CSS variables for typographic scale and spacing */
:root {
  --font-heading: 'Libre Baskerville', serif;
  --font-body: 'Avenir Light', 'Avenir', 'Avenir Next', sans-serif;
  /* Sizes converted from points (pt) to pixels: 1pt ≈ 1.3333px */
  --size-h1: 66.6667px; /* 50pt */
  --size-h2: 42.6667px; /* 32pt */
  --size-h3: 32px;      /* approx for cards and smaller headings */
  --size-body: 14.6667px; /* 11pt */
  --letter-spacing-h1: -0.05em;
  --letter-spacing-h2: -0.02em;
  --letter-spacing-body: 0em;
  --max-width: 1200px;
  --color-text: #0c1a2b;
  --color-accent: #004c8b;
  --color-link: #004c8b;
  --color-background: #ffffff;
  --color-muted: #556677;
  --space-section: 5rem;
  --space-container: 2rem;
  --transition-duration: 0.6s;
}

/* Reset and base styles */
*,
*::before,
*::after {
  box-sizing: border-box;
}
html,
body {
  margin: 0;
  padding: 0;
  font-family: var(--font-body);
  font-size: var(--size-body);
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-background);
}
h1,
h2,
h3,
h4,
h5,
h6 {
  margin: 0 0 0.5rem 0;
  font-family: var(--font-heading);
  font-weight: 400;
}
h1 {
  font-size: var(--size-h1);
  letter-spacing: var(--letter-spacing-h1);
  line-height: 1.1;
}
h2 {
  font-size: var(--size-h2);
  letter-spacing: var(--letter-spacing-h2);
  line-height: 1.2;
}
h3 {
  font-size: var(--size-h3);
  letter-spacing: var(--letter-spacing-body);
  font-family: var(--font-body);
  font-weight: 400;
  text-transform: none;
}
p {
  margin: 0 0 1rem 0;
  letter-spacing: var(--letter-spacing-body);
}
ul {
  margin: 0;
  padding-left: 1.25rem;
  list-style: disc;
}
li {
  margin-bottom: 0.5rem;
}
a {
  color: var(--color-link);
  text-decoration: none;
  transition: color 0.2s ease-in-out;
}
a:hover {
  color: #003562;
  text-decoration: underline;
}

/* Banner at top */
.banner {
  background: #f4f6f9;
  padding: 0.25rem var(--space-container);
  text-align: center;
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  color: var(--color-muted);
}

/* Hero section */
.hero {
  position: relative;
  width: 100%;
  height: 100vh;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  text-align: center;
}
.hero-video {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: -2;
}
.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 20, 40, 0.55);
  z-index: -1;
}
.hero-content {
  max-width: var(--max-width);
  padding: 0 var(--space-container);
}
.hero-content h1 {
  color: #ffffff;
  margin-bottom: 1rem;
}
.hero-content p {
  color: #e5ebf0;
  max-width: 720px;
  margin: 0 auto 2rem;
  line-height: 1.4;
}
.hero-buttons {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
}

/* Button styles */
.btn {
  display: inline-block;
  padding: 0.75rem 1.75rem;
  border-radius: 2rem;
  font-size: 0.875rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  cursor: pointer;
  transition: background-color 0.3s ease, color 0.3s ease;
}
.btn.primary {
  background-color: var(--color-accent);
  color: #ffffff;
}
.btn.primary:hover {
  background-color: #003562;
}
.btn.secondary {
  background-color: transparent;
  color: #ffffff;
  border: 1px solid #ffffff;
}
.btn.secondary:hover {
  background-color: rgba(255, 255, 255, 0.15);
}
.btn.tertiary {
  background-color: #eef2f6;
  color: var(--color-accent);
  border: 1px solid #ccd7e1;
  margin-right: 0.5rem;
  margin-bottom: 0.5rem;
}
.btn.tertiary:hover {
  background-color: #dde5ee;
}

/* Section base styles */
.section {
  padding: var(--space-section) var(--space-container);
}
.section:nth-of-type(even) {
  background-color: #f9fbfd;
}
.container {
  max-width: var(--max-width);
  margin-left: auto;
  margin-right: auto;
}
.section h2 {
  color: var(--color-text);
  margin-bottom: 1rem;
}
.section p {
  color: var(--color-muted);
  max-width: 700px;
}
.link {
  display: inline-block;
  margin-top: 1rem;
  font-weight: 400;
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.link:hover {
  text-decoration: underline;
}

/* Cards within services section */
.services .cards {
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
  margin-top: 2rem;
}
.services .card {
  background: #ffffff;
  border: 1px solid #e8eef4;
  border-radius: 1rem;
  padding: 2rem;
  flex: 1 1 calc(33.333% - 2rem);
  min-width: 260px;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.services .card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
}
.services .card h3 {
  font-size: 1.5rem;
  font-family: var(--font-heading);
  margin-bottom: 0.5rem;
  color: var(--color-text);
}
.services .card p {
  font-size: 0.875rem;
  color: var(--color-muted);
  margin-bottom: 1rem;
}

/* Technology list */
.technology ul {
  list-style: none;
  padding: 0;
}
.technology li {
  margin-bottom: 0.5rem;
  padding-left: 1.5rem;
  position: relative;
  color: var(--color-muted);
}
.technology li::before {
  content: '\2022';
  position: absolute;
  left: 0;
  color: var(--color-accent);
  font-size: 1rem;
  line-height: 1;
  top: 0;
}

/* Policy links grid */
.policy-links {
  margin-top: 1.5rem;
  display: flex;
  flex-wrap: wrap;
}
.policy-links .btn {
  flex: 1 1 auto;
  text-align: center;
}

/* Contact form styles */
.contact-form {
  margin-top: 2rem;
  max-width: 700px;
}
.form-group {
  margin-bottom: 1rem;
}
.form-group label {
  display: block;
  margin-bottom: 0.25rem;
  font-size: 0.875rem;
  color: var(--color-text);
  font-family: var(--font-heading);
}
.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid #ccd7e1;
  border-radius: 0.5rem;
  background-color: #fafcfe;
  font-family: var(--font-body);
  font-size: 0.875rem;
  letter-spacing: var(--letter-spacing-body);
}
.form-group textarea {
  resize: vertical;
}
.form-group.checkbox {
  display: flex;
  align-items: center;
}
.form-group.checkbox input {
  width: auto;
  margin-right: 0.5rem;
}
.form-group.checkbox label {
  margin: 0;
  font-family: var(--font-body);
  font-size: 0.875rem;
  color: var(--color-muted);
}
.contact-form button {
  margin-top: 1rem;
}

/* Footer */
.footer {
  background-color: #0c1a2b;
  color: #ffffff;
  padding: 2rem var(--space-container);
  text-align: center;
  font-size: 0.75rem;
}
.footer a {
  color: #99aabb;
}

/* Fade-in animation classes used by Intersection Observer in script.js */
.fade {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity var(--transition-duration) ease-out,
    transform var(--transition-duration) ease-out;
}
.fade.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Responsive adjustments */
@media (max-width: 960px) {
  .services .card {
    flex-basis: calc(50% - 2rem);
  }
  h1 {
    font-size: 2.75rem; /* responsive scaling for narrower screens */
  }
  h2 {
    font-size: 2rem;
  }
}
@media (max-width: 600px) {
  .services .card {
    flex-basis: 100%;
  }
  .hero-content p {
    font-size: 0.875rem;
  }
  h1 {
    font-size: 2rem;
    letter-spacing: -0.03em;
  }
  h2 {
    font-size: 1.5rem;
  }
}