/**
 * COSAS3D — Typography System
 * Implements Space Grotesk via @font-face with explicit weight mapping.
 * Includes fallback stacks and technical display styles.
 */

/* 700 Bold: Primary bold font file provided by user */
@font-face {
  font-family: 'Space Grotesk';
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url('../fonts/SpaceGrotesk-BoldSpaceGrotesk-Bold.ttf') format('truetype'),
       url('../fonts/SpaceGrotesk-Bold.ttf') format('truetype'),
       local('Space Grotesk Bold'),
       local('SpaceGrotesk-Bold');
}

/* 600 SemiBold: Fallback weight mapping */
@font-face {
  font-family: 'Space Grotesk';
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url('../fonts/SpaceGrotesk-Bold.ttf') format('truetype'),
       url('../fonts/SpaceGrotesk-BoldSpaceGrotesk-Bold.ttf') format('truetype');
}

/* 500 Medium: Balanced weight for UI and navigation */
@font-face {
  font-family: 'Space Grotesk';
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url('../fonts/SpaceGrotesk-Medium.ttf') format('truetype'),
       local('Space Grotesk Medium');
}

/* 400 Regular: Clean legible weight for body paragraphs */
@font-face {
  font-family: 'Space Grotesk';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('../fonts/SpaceGrotesk-Regular.ttf') format('truetype'),
       local('Space Grotesk Regular');
}

/* Base Typographic Hierarchy */
body {
  font-family: var(--font-family-body);
  font-size: 1rem;
  font-weight: var(--fw-regular);
  line-height: 1.6;
  color: var(--color-text-secondary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-family-display);
  color: var(--color-text-primary);
  line-height: 1.15;
  letter-spacing: -0.025em;
  margin: 0;
}

h1 {
  font-size: clamp(2.25rem, 5vw, 3.75rem);
  font-weight: var(--fw-bold);
  letter-spacing: -0.035em;
}

h2 {
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: var(--fw-bold);
}

h3 {
  font-size: clamp(1.25rem, 2.5vw, 1.75rem);
  font-weight: var(--fw-semibold);
}

h4 {
  font-size: 1.125rem;
  font-weight: var(--fw-semibold);
  letter-spacing: -0.01em;
}

p {
  margin: 0 0 var(--space-md) 0;
}

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

.text-lead {
  font-size: clamp(1.05rem, 1.8vw, 1.25rem);
  line-height: 1.5;
  color: var(--color-text-secondary);
}

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

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

/* Technical stamps and metadata */
.tech-label {
  font-family: var(--font-family-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-accent-orange);
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
}

.tech-label::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  background-color: var(--color-accent-orange);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--color-accent-orange);
}

.tech-coord {
  font-family: var(--font-family-mono);
  font-size: 0.7rem;
  color: var(--color-text-dim);
  letter-spacing: 0.08em;
}