/* ==========================================================================
   SWISS TYPOGRAPHIC GRID & NATIVE CSS SYSTEM
   ========================================================================== */

:root {
  /* Color Palette (Minimalist Dark / High Contrast) */
  --color-bg: #09090b;
  --color-surface: #121215;
  --color-border: #27272a;
  --color-text-main: #f4f4f5;
  --color-text-muted: #a1a1aa;
  --color-accent: #38bdf8;

  /* Typography Scale (Fluid) */
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  
  --step--1: clamp(0.8rem, 0.78rem + 0.1vw, 0.9rem);
  --step-0:  clamp(1.0rem, 0.95rem + 0.25vw, 1.125rem);
  --step-1:  clamp(1.25rem, 1.15rem + 0.5vw, 1.5rem);
  --step-2:  clamp(1.56rem, 1.4rem + 0.8vw, 2.0rem);
  --step-3:  clamp(1.95rem, 1.7rem + 1.2.5vw, 2.66rem);

  /* Vertical Rhythm & Spacing Scale (8px baseline) */
  --space-2xs: 0.25rem; /* 4px */
  --space-xs:  0.5rem;  /* 8px */
  --space-sm:  1.0rem;  /* 16px */
  --space-md:  1.5rem;  /* 24px */
  --space-lg:  2.0rem;  /* 32px */
  --space-xl:  3.0rem;  /* 48px */
  --space-2xl: 4.5rem;  /* 72px */

  /* Grid Geometry */
  --grid-max-width: 1120px;
  --grid-columns: 12;
  --grid-gutter: var(--space-md);
}

/* Box Sizing & Resets */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  background-color: var(--color-bg);
  color: var(--color-text-main);
  font-family: var(--font-sans);
  font-size: var(--step-0);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* Swiss 12-Column Grid Layout */
.grid-container {
  display: grid;
  grid-template-columns: repeat(var(--grid-columns), 1fr);
  gap: var(--grid-gutter);
  width: min(100% - var(--space-lg), var(--grid-max-width));
  margin-inline: auto;
}

/* Column Span Helpers */
.col-12 { grid-column: span 12; }
.col-8  { grid-column: span 8; }
.col-6  { grid-column: span 6; }
.col-4  { grid-column: span 4; }
.col-3  { grid-column: span 3; }

@media (max-width: 768px) {
  .col-8, .col-6, .col-4, .col-3 {
    grid-column: span 12;
  }
}

/* Typographic Alignment & Hierarchy */
h1, h2, h3 {
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--color-text-main);
}

h1 { font-size: var(--step-3); margin-bottom: var(--space-md); }
h2 { font-size: var(--step-2); margin-bottom: var(--space-sm); }
h3 { font-size: var(--step-1); margin-bottom: var(--space-xs); }

p {
  color: var(--color-text-muted);
  margin-bottom: var(--space-md);
}

a {
  color: var(--color-text-main);
  text-decoration: underline;
  text-underline-offset: 4px;
  transition: color 0.2s ease;
}

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

/* Card Component (Swiss Border Structure) */
.swiss-card {
  border: 1px solid var(--color-border);
  padding: var(--space-md);
  background-color: var(--color-surface);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  height: 100%;
}

.swiss-card h3 {
  margin-bottom: var(--space-xs);
}

.meta-tag {
  font-family: var(--font-mono);
  font-size: var(--step--1);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-xs);
  display: block;
}

/* Navigation System */
header {
  border-bottom: 1px solid var(--color-border);
  padding-block: var(--space-md);
  margin-bottom: var(--space-xl);
}

.brand-group {
  display: flex;
  align-items: center;
  gap: 10px; /* Adjust this to get the exact spacing you want */
}

nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-links {
  display: flex;
  gap: var(--space-md);
  list-style: none;
}

footer {
  border-top: 1px solid var(--color-border);
  padding-block: var(--space-xl);
  margin-top: var(--space-2xl);
  font-size: var(--step--1);
  color: var(--color-text-muted);
}