@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700;800&family=Inter:wght@300;400;500;600;700&display=swap');

/* Modern CSS Reset & Base Styles */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  -moz-tab-size: 4;
  tab-size: 4;
  overflow-x: hidden; /* Prevent horizontal scroll on iOS */
}

body {
  font-family: var(--font-body);
  font-size: var(--text-body);
  line-height: 1.65;
  color: var(--color-foreground);
  background-color: var(--color-background);
  min-height: 100vh;
  text-rendering: optimizeSpeed;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  max-width: 100vw;  /* Safety net against content widening page */
  display: flex;
  flex-direction: column;
}

main {
  flex: 1 0 auto;
  animation: page-enter 300ms var(--ease-out) both;
}

/* Typography Headings */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--color-text-primary);
  line-height: 1.2;
}

h1 {
  font-size: var(--text-h1);
  font-weight: 800;
  letter-spacing: -0.03em;
}

h2 {
  font-size: var(--text-h2);
  font-weight: 700;
  letter-spacing: -0.02em;
}

h3 {
  font-size: var(--text-h3);
  font-weight: 600;
  letter-spacing: -0.01em;
}

h4 {
  font-size: var(--text-h4);
  font-weight: 600;
}

p {
  margin-bottom: var(--space-4);
  color: var(--color-text-secondary);
}

p:last-child {
  margin-bottom: 0;
}

a {
  color: var(--color-accent);
  text-decoration: none;
  background-color: transparent;
  transition: var(--transition-colors);
}

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

img, picture, svg, video, canvas {
  display: block;
  max-width: 100%;
  height: auto;
}

/* Exception: brand ticker logos need explicit height */
.brand-slide-logo img {
  height: 52px;
  width: auto;
  max-width: 110px;
  object-fit: contain;
}

button, input, select, textarea {
  font: inherit;
}

/* Structural Classes */
.container {
  width: 100%;
  max-width: var(--container-xl);
  margin-inline: auto;
  padding-inline: var(--container-gutter-desktop);
}

@media (max-width: 768px) {
  .container {
    padding-inline: var(--container-gutter-mobile);
  }
}

.section {
  padding-block: var(--section-py);
  position: relative;
}

@media (max-width: 768px) {
  .section {
    padding-block: var(--section-py-sm);
  }
}

/* Layout variations */
.section-odd {
  background-color: var(--color-background);
}

.section-even {
  background-color: var(--color-surface);
}

.section-dark {
  background-color: var(--color-primary);
  color: var(--color-on-primary);
}

.section-dark h1,
.section-dark h2,
.section-dark h3,
.section-dark h4 {
  color: var(--color-on-primary);
}

.section-dark p {
  color: var(--color-text-muted);
}

/* Text alignment & Utilities */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.section-header {
  max-width: 640px;
  margin-inline: auto;
  margin-bottom: var(--space-12);
}

.section-header.text-center {
  margin-inline: auto;
}

.section-header.text-left {
  margin-inline: 0;
}

.section-header h2 {
  margin-bottom: var(--space-3);
}

.section-header p {
  font-size: var(--text-body-lg);
  color: var(--color-text-secondary);
}

.section-dark .section-header p {
  color: var(--color-text-muted);
}

.d-grid {
  display: grid;
  gap: var(--grid-gap);
}

/* Custom focus indicators */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 3px solid var(--color-ring);
  outline-offset: 2px;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Selection color */
::selection {
  background-color: var(--color-accent-light);
  color: var(--color-primary);
}

/* Page load fade-in keyframe */
@keyframes page-enter {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0); }
}