/*
 * Stage9M Visual Polish
 *
 * This stylesheet unifies the visual language of the DRR DAMSON site by
 * applying a dark, technical base, golden and turquoise accents, consistent
 * card styling, button styling, separators, and responsive spacing. It also
 * defines classes to support reveal-on-scroll animations (used in
 * combination with drr-stage9m-reveal.js).
 */

/* Root and body styling */
:root {
  /* Primary colour palette */
  --drr-bg: #0e1720; /* dark background for page */
  --drr-bg-secondary: #17232e; /* slightly lighter panel background */
  --drr-border: rgba(212, 175, 55, 0.4); /* gold border with transparency */
  --drr-primary: #d4af37; /* golden accent */
  --drr-secondary: #00a89c; /* turquoise accent for highlights */
  --drr-text: #f5f5f5; /* light text */
  --drr-text-muted: #a7b3c1; /* muted grey-blue text */
  --drr-shadow: rgba(0, 0, 0, 0.6);
}

body {
  background: var(--drr-bg);
  color: var(--drr-text);
  line-height: 1.6;
}

/* Section spacing */
section {
  margin: 60px auto;
}

/* Unified card styling */
.drr-audience-card,
.cat-card-v2,
.drr-home-service,
.drr-realization-card,
.drr-trust-card,
.drr-opinion,
.project-card,
.tool-card,
.generator-card,
.calculator-card {
  background: var(--drr-bg-secondary);
  border: 1px solid var(--drr-border);
  border-radius: 12px;
  box-shadow: 0 4px 8px var(--drr-shadow);
  padding: 20px;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.drr-audience-card:hover,
.cat-card-v2:hover,
.drr-home-service:hover,
.drr-realization-card:hover,
.drr-trust-card:hover,
.drr-opinion:hover,
.project-card:hover,
.tool-card:hover,
.generator-card:hover,
.calculator-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 16px var(--drr-shadow);
}

/* Unified typography */
h1, h2, h3, h4, h5 {
  color: var(--drr-primary);
  margin-top: 0;
}

p {
  color: var(--drr-text);
  margin-bottom: 1em;
}

a {
  color: var(--drr-secondary);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--drr-primary);
}

/* Unified buttons */
.btn-shell,
.drr-hero-action,
.drr-stage8l-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 20px;
  border-radius: 14px;
  font-weight: 700;
  text-transform: uppercase;
  cursor: pointer;
  transition: background 0.3s ease, color 0.3s ease;
}

.btn-shell--primary,
.drr-stage8l-btn--gold,
.drr-hero-action--primary {
  background: linear-gradient(135deg, var(--drr-primary), #ffd860);
  color: #111;
  box-shadow: 0 4px 8px var(--drr-shadow);
}

.btn-shell--primary:hover,
.drr-stage8l-btn--gold:hover,
.drr-hero-action--primary:hover {
  background: linear-gradient(135deg, #ffd860, var(--drr-primary));
}

.btn-shell--ghost,
.drr-hero-action--ghost {
  background: transparent;
  border: 1px solid var(--drr-primary);
  color: var(--drr-primary);
}

.btn-shell--ghost:hover,
.drr-hero-action--ghost:hover {
  background: var(--drr-primary);
  color: #111;
}

.drr-stage8l-btn {
  background: var(--drr-secondary);
  color: #111;
  border: none;
}

.drr-stage8l-btn:hover {
  background: var(--drr-primary);
  color: #111;
}

/* CTA glow */
.btn-shell--primary::after,
.drr-stage8l-btn--gold::after,
.drr-hero-action--primary::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(45deg, rgba(255,255,255,0.3), rgba(255,255,255,0));
  opacity: 0;
  transition: opacity 0.5s ease;
  pointer-events: none;
}

.btn-shell--primary:hover::after,
.drr-stage8l-btn--gold:hover::after,
.drr-hero-action--primary:hover::after {
  opacity: 1;
  animation: shine 1.2s linear infinite;
}

@keyframes shine {
  from { transform: translateX(-100%); }
  to { transform: translateX(100%); }
}

/* Reveal-on-scroll animations */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}
.reveal-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Respect prefers-reduced-motion */
@media (prefers-reduced-motion: reduce) {
  .btn-shell, .drr-hero-action, .drr-stage8l-btn,
  .drr-audience-card, .cat-card-v2,
  .drr-home-service, .drr-realization-card,
  .drr-trust-card, .drr-opinion {
    transition: none;
  }
  .reveal, .reveal-visible {
    opacity: 1 !important;
    transform: none !important;
  }
  .btn-shell--primary::after,
  .drr-stage8l-btn--gold::after,
  .drr-hero-action--primary::after {
    display: none;
  }
}