/* terrain-base.css — Infrastructure Fieldcraft foundation surface
   Concept: earthy, technical, muted warmth — not the standard dark-blue IT look.
   Color system built around warm neutrals with a signal teal accent. */

/* === Reset and Typography === */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --terrain-bedrock: #1a1814;
  --terrain-soil: #2a2520;
  --terrain-sand: #f5f0e8;
  --terrain-clay: #e8dfd2;
  --terrain-pebble: #b8ad9e;
  --terrain-signal: #2d9e8f;
  --terrain-signal-dim: #1f6e63;
  --terrain-ember: #d4694a;
  --terrain-text: #3a352e;
  --terrain-text-light: #7a7268;
  --terrain-border: #d6cec2;
  --terrain-glass: rgba(245, 240, 232, 0.92);
  --fieldcraft-mono: 'DM Mono', 'Consolas', monospace;
  --fieldcraft-sans: 'DM Sans', system-ui, -apple-system, sans-serif;
  --fieldcraft-space-xs: 0.5rem;
  --fieldcraft-space-sm: 0.75rem;
  --fieldcraft-space-md: 1.25rem;
  --fieldcraft-space-lg: 2.5rem;
  --fieldcraft-space-xl: 4rem;
  --fieldcraft-space-2xl: 6rem;
}

html {
  font-family: var(--fieldcraft-sans);
  font-size: 16px;
  line-height: 1.65;
  color: var(--terrain-text);
  background: var(--terrain-sand);
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--terrain-signal-dim); text-decoration: none; transition: color 0.2s ease; }
a:hover { color: var(--terrain-signal); }
a:focus-visible { outline: 2px solid var(--terrain-signal); outline-offset: 3px; border-radius: 2px; }

h1, h2, h3, h4 {
  font-family: var(--fieldcraft-sans);
  font-weight: 600;
  line-height: 1.2;
  color: var(--terrain-bedrock);
}

h1 { font-size: clamp(1.75rem, 3vw + 0.5rem, 2.75rem); letter-spacing: -0.02em; }
h2 { font-size: clamp(1.35rem, 2vw + 0.4rem, 2rem); letter-spacing: -0.01em; }
h3 { font-size: clamp(1.1rem, 1.5vw + 0.3rem, 1.4rem); }

address { font-style: normal; }

/* === Skip link === */
.bypass-to-field {
  position: absolute;
  top: -100%;
  left: 1rem;
  background: var(--terrain-signal);
  color: #fff;
  padding: 0.5rem 1rem;
  border-radius: 0 0 6px 6px;
  z-index: 999;
  font-size: 0.875rem;
  font-weight: 500;
  transition: top 0.2s ease;
}
.bypass-to-field:focus { top: 0; }

/* === Terrain Ribbon (topbar) === */
.terrain-ribbon {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.75rem 1.5rem;
  background: var(--terrain-glass);
  backdrop-filter: blur(14px) saturate(1.6);
  -webkit-backdrop-filter: blur(14px) saturate(1.6);
  border-bottom: 1px solid var(--terrain-border);
}

.terrain-ribbon__home {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--terrain-bedrock);
  white-space: nowrap;
}
.terrain-ribbon__home:hover { color: var(--terrain-signal); }

.terrain-ribbon__mark { color: var(--terrain-signal); flex-shrink: 0; }

.terrain-ribbon__links {
  display: flex;
  gap: 1.25rem;
  margin-left: auto;
  font-size: 0.85rem;
  font-weight: 500;
}
.terrain-ribbon__links a { color: var(--terrain-text-light); }
.terrain-ribbon__links a:hover { color: var(--terrain-signal); }
.terrain-ribbon__links a[aria-current="page"] { color: var(--terrain-signal); border-bottom: 2px solid var(--terrain-signal); padding-bottom: 2px; }

.terrain-ribbon__phone {
  font-family: var(--fieldcraft-mono);
  font-size: 0.8rem;
  color: var(--terrain-signal-dim);
  font-weight: 500;
  white-space: nowrap;
  padding-left: 1rem;
  border-left: 1px solid var(--terrain-border);
}

/* === Terrain Column (main content area) === */
.terrain-column {
  flex: 1;
  max-width: 72rem;
  margin: 0 auto;
  padding: 0 1.5rem;
  width: 100%;
}

/* === Action buttons === */
.fieldcraft-action {
  display: inline-block;
  font-family: var(--fieldcraft-sans);
  font-size: 0.9rem;
  font-weight: 600;
  padding: 0.7rem 1.5rem;
  border-radius: 6px;
  transition: all 0.25s ease;
  cursor: pointer;
  text-align: center;
}

.fieldcraft-action--solid {
  background: var(--terrain-signal);
  color: #fff;
  border: none;
}
.fieldcraft-action--solid:hover {
  background: var(--terrain-signal-dim);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(45, 158, 143, 0.25);
}

.fieldcraft-action--outline {
  background: transparent;
  color: var(--terrain-signal-dim);
  border: 1.5px solid var(--terrain-signal-dim);
}
.fieldcraft-action--outline:hover {
  background: var(--terrain-signal-dim);
  color: #fff;
}

.fieldcraft-action--text {
  background: none;
  border: none;
  color: var(--terrain-text-light);
  padding: 0.7rem 0.5rem;
  text-decoration: underline;
  text-underline-offset: 3px;
}
.fieldcraft-action--text:hover { color: var(--terrain-signal); }

/* === Terrain Base-line (footer) === */
.terrain-base-line {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding: 1.25rem 1.5rem;
  border-top: 1px solid var(--terrain-border);
  font-size: 0.8rem;
  color: var(--terrain-text-light);
  flex-wrap: wrap;
}
.terrain-base-line a { color: var(--terrain-text-light); font-weight: 500; }
.terrain-base-line a:hover { color: var(--terrain-signal); }
.terrain-base-line span { margin-left: auto; }

/* === Diagnostic tag (small uppercase labels) === */
.diagnostic-tag {
  font-family: var(--fieldcraft-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--terrain-signal);
  font-weight: 500;
  margin-bottom: var(--fieldcraft-space-xs);
}

/* === Responsive === */
@media (max-width: 800px) {
  .terrain-ribbon {
    flex-wrap: wrap;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
  }
  .terrain-ribbon__links {
    order: 3;
    width: 100%;
    margin-left: 0;
    overflow-x: auto;
    padding-bottom: 0.25rem;
    gap: 1rem;
    -webkit-overflow-scrolling: touch;
  }
  .terrain-ribbon__phone {
    border-left: none;
    padding-left: 0;
    margin-left: auto;
  }
  .terrain-column { padding: 0 1rem; }
  .terrain-base-line { flex-direction: column; align-items: flex-start; gap: 0.5rem; }
  .terrain-base-line span { margin-left: 0; }
}