/* RedRope Technologies — design tokens & component styles.
   Built on top of Bootstrap 5.3's CSS-variable theming (data-bs-theme). */

:root {
  --rr-accent: #a3241c;
  --rr-accent-rgb: 163, 36, 28;
  --rr-accent-dark: #7e1c16;
  --rr-ink: #14181f;
  --rr-paper: #fafaf9;
  --rr-muted: #5b6470;
  --rr-border: rgba(20, 24, 31, 0.1);

  --bs-primary: var(--rr-accent);
  --bs-primary-rgb: var(--rr-accent-rgb);
  --bs-link-color: var(--rr-accent);
  --bs-link-color-rgb: var(--rr-accent-rgb);
  --bs-link-hover-color: var(--rr-accent-dark);
  --bs-body-bg: var(--rr-paper);
  --bs-body-color: var(--rr-ink);
  --bs-border-color: var(--rr-border);

  --rr-space-section: clamp(4rem, 8vw, 8rem);
}

[data-bs-theme="dark"] {
  --rr-ink: #f2f1ee;
  --rr-paper: #0e1013;
  --rr-muted: #a3aab5;
  --rr-border: rgba(242, 241, 238, 0.12);

  --bs-body-bg: var(--rr-paper);
  --bs-body-color: var(--rr-ink);
  --bs-border-color: var(--rr-border);
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.6;
}

.rr-section {
  padding-top: var(--rr-space-section);
  padding-bottom: var(--rr-space-section);
}

h1, .rr-display {
  font-weight: 700;
  letter-spacing: -0.02em;
  font-size: clamp(2.25rem, 4vw + 1rem, 4rem);
  line-height: 1.1;
}

h2, .rr-h2 {
  font-weight: 700;
  letter-spacing: -0.01em;
  font-size: clamp(1.75rem, 2vw + 1rem, 2.75rem);
  line-height: 1.15;
}

h3, .rr-h3 {
  font-weight: 600;
  font-size: clamp(1.25rem, 1vw + 1rem, 1.5rem);
}

.rr-lede {
  font-size: clamp(1.125rem, 0.5vw + 1rem, 1.375rem);
  color: var(--rr-muted);
}

.rr-eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--rr-accent);
}

.btn-primary {
  --bs-btn-color: #fff;
  --bs-btn-bg: var(--rr-accent);
  --bs-btn-border-color: var(--rr-accent);
  --bs-btn-hover-bg: var(--rr-accent-dark);
  --bs-btn-hover-border-color: var(--rr-accent-dark);
  --bs-btn-active-bg: var(--rr-accent-dark);
  --bs-btn-active-border-color: var(--rr-accent-dark);
  border-radius: 0.5rem;
  padding-inline: 1.5rem;
}

.navbar {
  border-bottom: 1px solid var(--rr-border);
  backdrop-filter: blur(8px);
}

.rr-skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  z-index: 2000;
  background: var(--rr-accent);
  color: #fff;
  padding: 0.75rem 1.25rem;
  border-radius: 0 0 0.5rem 0;
}

.rr-skip-link:focus {
  left: 0;
}

/* --- Operational diagrams (semantic HTML, not images) --- */

.rr-flow {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
}

.rr-flow li {
  background: var(--bs-tertiary-bg, rgba(0, 0, 0, 0.03));
  border: 1px solid var(--rr-border);
  border-radius: 0.5rem;
  padding: 0.6rem 1rem;
  font-weight: 600;
  font-size: 0.95rem;
}

.rr-flow .rr-arrow {
  border: none;
  background: none;
  padding: 0;
  color: var(--rr-muted);
  font-weight: 400;
}

.rr-flow .rr-arrow::after {
  content: "\2192"; /* right arrow */
}

.rr-flow--after li {
  border-color: rgba(var(--rr-accent-rgb), 0.35);
}

.rr-method-steps {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 1.5rem;
  counter-reset: rr-step;
}

.rr-method-steps li {
  counter-increment: rr-step;
  position: relative;
  padding-top: 2.5rem;
}

.rr-method-steps li::before {
  content: counter(rr-step);
  position: absolute;
  top: 0;
  left: 0;
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  background: var(--rr-accent);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.9rem;
}

.rr-card {
  border: 1px solid var(--rr-border);
  border-radius: 0.75rem;
  transition: box-shadow 0.15s ease, transform 0.15s ease;
  height: 100%;
}

.rr-card:hover {
  box-shadow: 0 0.75rem 1.5rem rgba(0, 0, 0, 0.08);
  transform: translateY(-2px);
}

.rr-cta-band {
  background: var(--rr-ink);
  color: var(--rr-paper);
  border-radius: 1rem;
}

.rr-cta-band .btn-primary {
  --bs-btn-color: var(--rr-ink);
  --bs-btn-bg: var(--rr-paper);
  --bs-btn-border-color: var(--rr-paper);
  --bs-btn-hover-bg: #e7e5e1;
  --bs-btn-hover-border-color: #e7e5e1;
}

.rr-disclosure {
  border-left: 3px solid var(--rr-border);
  padding-left: 1rem;
  color: var(--rr-muted);
  font-size: 0.9rem;
}

@media (max-width: 767.98px) {
  .rr-flow .rr-arrow::after {
    content: "\2193"; /* down arrow on stacked mobile layout */
  }
}