/* Reset and base typography */

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-family);
  font-weight: var(--font-weight-regular);
  color: var(--color-text-primary);
  background: var(--color-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

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

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

/* Layout primitives */

.container {
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-padding);
}

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

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

.section--light {
  background: var(--color-bg);
}

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

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

/* Logo typography */

.logo {
  display: inline-flex;
  align-items: baseline;
  gap: 0;
  text-decoration: none;
}

.logo-prefix {
  font-family: var(--font-family);
  font-weight: var(--font-weight-light);
  letter-spacing: -0.5px;
}

.logo-suffix {
  font-family: var(--font-family);
  font-weight: var(--font-weight-extrabold);
  letter-spacing: -1.5px;
}

.logo-domain {
  font-family: var(--font-family);
  font-weight: var(--font-weight-regular);
  margin-left: 2px;
}

/* Logo color variants */

.logo--on-dark .logo-prefix { color: rgba(255, 255, 255, 0.7); }
.logo--on-dark .logo-suffix { color: var(--color-white); }
.logo--on-dark .logo-domain { color: rgba(255, 255, 255, 0.4); }

.logo--on-light .logo-prefix { color: var(--color-carbon); }
.logo--on-light .logo-suffix { color: var(--color-blue-radiance); }
.logo--on-light .logo-domain { color: var(--color-skywriting); }

/* Accent bar pattern */

.accent-bar {
  height: 4px;
  width: 80px;
  background: var(--color-flamingo);
  border-radius: 2px;
  margin-bottom: var(--gap-md);
}

/* Button primitives */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.875rem 2rem;
  border-radius: var(--radius-pill);
  font-family: var(--font-family);
  font-weight: var(--font-weight-bold);
  font-size: var(--text-base);
  letter-spacing: -0.2px;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast);
  min-height: 44px;
  min-width: 44px;
}

.btn:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn--primary {
  background: var(--color-flamingo);
  color: var(--color-carbon);
}

.btn--primary:hover {
  background: #d4687a;
  color: var(--color-carbon);
}

.btn--ghost {
  background: transparent;
  color: var(--color-white);
  border: 2px solid rgba(255, 255, 255, 0.3);
}

.btn--ghost:hover {
  border-color: var(--color-white);
  color: var(--color-white);
}

.btn--large {
  padding: 1.125rem 2.5rem;
  font-size: var(--text-lg);
}

/* Section headings */

.section-heading {
  font-size: var(--text-3xl);
  font-weight: var(--font-weight-extrabold);
  letter-spacing: -0.5px;
  line-height: 1.15;
}

.section-subheading {
  font-size: var(--text-lg);
  font-weight: var(--font-weight-regular);
  color: var(--color-skywriting);
  margin-top: var(--gap-sm);
  max-width: 600px;
}

/* Visually hidden (for a11y) */

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