/**
 * NV CITY - Base Styles, Reset & Typography
 * Mobile-First Foundations
 */

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-primary-text);
  background-color: var(--color-white);
  overflow-x: clip;
  position: relative;
}

/* Mobile-First Typography Hierarchy */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-primary-text);
  letter-spacing: -0.02em;
}

h1 {
  font-size: 2.25rem; /* 36px on mobile */
  font-weight: 800;
  line-height: 1.15;
}

h2 {
  font-size: 1.75rem; /* 28px on mobile */
  line-height: 1.25;
}

h3 {
  font-size: 1.35rem; /* ~22px */
  line-height: 1.3;
}

h4 {
  font-size: 1.15rem;
  line-height: 1.35;
}

p {
  color: var(--color-secondary-text);
  font-size: 1rem;
  line-height: 1.65;
}

p.lead {
  font-size: 1.125rem;
  line-height: 1.6;
  color: var(--color-primary-text);
}

a {
  color: var(--color-primary-blue);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-primary-blue-hover);
}

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

button, input, select, textarea {
  font-family: inherit;
  font-size: 1rem;
  color: inherit;
  border: none;
  outline: none;
  background: none;
}

button {
  cursor: pointer;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
}

ul, ol {
  list-style: none;
}

/* Accessible Focus States */
:focus-visible {
  outline: 2px solid var(--color-primary-blue);
  outline-offset: 3px;
}

/* Layout Utilities */
.container {
  width: 100%;
  max-width: var(--container-wide);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
}

.container-narrow {
  max-width: 1080px;
}

.section {
  padding-top: var(--space-56);
  padding-bottom: var(--space-56);
  position: relative;
}

.section-soft-blue {
  background-color: var(--color-soft-blue);
}

.section-navy {
  background-color: var(--color-dark-navy);
  color: var(--color-white);
}

.section-deep-navy {
  background-color: var(--color-deep-navy);
  color: var(--color-white);
}

.section-navy h1,
.section-navy h2,
.section-navy h3,
.section-deep-navy h1,
.section-deep-navy h2,
.section-deep-navy h3 {
  color: var(--color-white);
}

.section-navy p,
.section-deep-navy p {
  color: #B8C7D9;
}

/* Section Header Badges & Titles */
.section-header {
  margin-bottom: var(--space-32);
}

.section-header.text-center {
  text-align: center;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: var(--space-6);
  font-size: 0.8125rem; /* 13px */
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-primary-blue);
  background-color: var(--color-blue-tint);
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  margin-bottom: var(--space-12);
}

.section-navy .section-tag,
.section-deep-navy .section-tag {
  background-color: rgba(20, 110, 245, 0.16);
  color: #60A5FA;
  border: 1px solid rgba(20, 110, 245, 0.35);
}

.section-title {
  font-size: 1.85rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-12);
  color: var(--color-primary-text);
}

.text-blue-accent {
  color: var(--color-primary-blue);
}

.text-blue-glow {
  color: #38BDF8;
  text-shadow: 0 0 20px rgba(56, 189, 248, 0.4);
}

.section-navy .section-title,
.section-deep-navy .section-title {
  color: var(--color-white);
}

.section-subtitle {
  font-size: 1rem;
  color: var(--color-secondary-text);
  max-width: 640px;
}

.section-header.text-center .section-subtitle {
  margin-left: auto;
  margin-right: auto;
}

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

/* Tablet & Desktop Typography scaling */
@media (min-width: 768px) {
  h1 {
    font-size: 3rem;
  }
  h2 {
    font-size: 2.25rem;
  }
  .section {
    padding-top: var(--space-80);
    padding-bottom: var(--space-80);
  }
  .section-title {
    font-size: 2.35rem;
  }
  .section-header {
    margin-bottom: var(--space-48);
  }
}

@media (min-width: 1024px) {
  h1 {
    font-size: 3.75rem; /* 60px */
  }
  h2 {
    font-size: 2.75rem; /* 44px */
  }
  .section {
    padding-top: var(--space-96);
    padding-bottom: var(--space-96);
  }
  .section-title {
    font-size: 2.75rem;
  }
}

/* Motion Preferences */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}