/*
*= require 'fontawesome/css/fontawesome.css'
*= require 'fontawesome/css/brands.css'
*= require 'fontawesome/css/solid.css'
*= require 'fontawesome/css/regular.css'
*/

/* ---------------------------------------------------------------------------
   Brand component layer. Design tokens (--color-*, --font-*, --radius-*) are
   declared via @theme in app/assets/tailwind/application.css and resolved
   here at runtime from :root.
--------------------------------------------------------------------------- */

/* Signature eyebrow label: a 6px accent stripe + uppercase mono caption.
   Mirrors the consultancy microsite's "— LABEL" motif. */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.625rem;          /* 10px */
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-stone);
}

.eyebrow::before {
  content: "";
  display: inline-block;
  width: 24px;
  height: 6px;                  /* 6px solid stripe */
  border-radius: 2px;
  background: var(--color-ink);
}

.eyebrow--terracotta::before { background: var(--color-terracotta); }
.eyebrow--on-dark { color: rgba(244, 238, 229, 0.7); }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.875rem 1.5rem;
  border-radius: var(--radius-md);
  font-weight: 500;
  line-height: 1;
  cursor: pointer;
  transition: background-color 0.2s ease-out, color 0.2s ease-out,
              transform 0.2s ease-out, border-color 0.2s ease-out;
}

.btn-primary {
  background: var(--color-ink);
  color: var(--color-surface);
}
.btn-primary:hover { background: var(--color-ink-deep); }

.btn-terracotta {
  background: var(--color-terracotta);
  color: var(--color-surface);
}
.btn-terracotta:hover { background: #a8451f; }

.btn-outline {
  background: transparent;
  color: var(--color-espresso);
  border: 1px solid var(--color-edge);
}
.btn-outline:hover { border-color: var(--color-ink); color: var(--color-ink); }

/* Outline button on dark (espresso/ink) backgrounds */
.btn-outline-on-dark {
  background: transparent;
  color: var(--color-surface);
  border: 1px solid rgba(244, 238, 229, 0.4);
}
.btn-outline-on-dark:hover { border-color: var(--color-surface); }

.btn-on-dark {
  background: var(--color-surface);
  color: var(--color-espresso);
}
.btn-on-dark:hover { background: #fff; }

/* Surface cards with a quiet hover lift */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-edge);
  border-radius: var(--radius-lg);
  transition: transform 0.3s ease-out, box-shadow 0.3s ease-out,
              border-color 0.3s ease-out;
  will-change: transform;
}

.card:hover {
  transform: translateY(-4px);
  border-color: var(--color-ink);
  box-shadow: 0 18px 40px -20px rgba(58, 42, 30, 0.45);
}

/* Inverted (dark ink) card. Two classes => wins over plain .card. */
.card.card-invert {
  background: var(--color-ink);
  border-color: var(--color-ink);
  color: var(--color-surface);
}
.card.card-invert:hover {
  border-color: var(--color-ink-deep);
  box-shadow: 0 18px 40px -20px rgba(22, 58, 55, 0.6);
}

.card-icon {
  color: var(--color-ink);
  transition: transform 0.3s ease-out;
}
.card:hover .card-icon { transform: translateY(-2px); }

/* A thin label-chip used for section / job location tags */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-stone);
}

/* Logo rows (tech stack + partners): mono until hovered */
.logo-mono {
  filter: grayscale(1);
  opacity: 0.65;
  transition: filter 0.3s ease-out, opacity 0.3s ease-out, transform 0.3s ease-out;
  will-change: transform;
}
.logo-mono:hover {
  filter: grayscale(0);
  opacity: 1;
  transform: translateY(-3px);
}

/* Hairline divider used between major blocks */
.rule {
  height: 1px;
  background: var(--color-edge);
  border: 0;
}

/* Hero decorative layers (kept in CSS so CSP can forbid inline styles) */
.hero-glow {
  background: radial-gradient(closest-side, var(--color-ink), transparent);
}

.hero-grid {
  background-image:
    linear-gradient(var(--color-surface) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-surface) 1px, transparent 1px);
  background-size: 64px 64px;
}

@media (prefers-reduced-motion: reduce) {
  .card,
  .card-icon,
  .logo-mono,
  .btn {
    transition: none;
  }
  .card:hover,
  .card:hover .card-icon,
  .logo-mono:hover {
    transform: none;
  }
}

/* ---------------------------------------------------------------------------
   Keyboard / section navigation (recolored to the ink accent)
--------------------------------------------------------------------------- */
#keyboard-nav-hint {
  backdrop-filter: blur(8px);
}

.section-nav-indicator {
  position: fixed;
  right: 2rem;
  top: 50%;
  transform: translateY(-50%);
  z-index: 30;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.section-nav-dot {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background-color: transparent;
  /* mid-tone ring reads on both light and dark sections */
  border: 2px solid var(--color-stone);
  cursor: pointer;
  transition: all 0.3s ease-out;
}

.section-nav-dot:hover {
  border-color: var(--color-ink);
  transform: scale(1.2);
}

.section-nav-dot.active {
  background-color: var(--color-ink);
  border-color: var(--color-ink);
  /* cream halo: invisible on light sections, keeps the dot visible
     when it floats over the dark ink/espresso sections */
  box-shadow: 0 0 0 1.5px var(--color-surface);
  transform: scale(1.25);
}

@media (max-width: 768px) {
  .section-nav-indicator { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  #keyboard-nav-hint,
  .section-nav-dot { transition: none; }
  .section-nav-dot:hover,
  .section-nav-dot.active { transform: none; }
}