/* ==========================================================================
   FiDo-5 landing page — extends the Civil Digital design system.
   Only styles used by fido5/index.html live here.
   ========================================================================== */

:root {
  --neo-bg:    #0b0d17;
  --neo-bg-2:  #151a33;
  --neo-cyan:  #35d0ff;
  --neo-pink:  #ff3d68;
  --neo-amber: #ffb238;
}

/* ---- Hero --------------------------------------------------------------- */
.g-hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(120% 90% at 50% 118%, rgba(139, 92, 246, .42) 0%, transparent 62%),
    linear-gradient(180deg, var(--neo-bg) 0%, var(--neo-bg-2) 100%);
  color: #cfd6f7;
  padding-block: var(--sp-9) var(--sp-8);
  text-align: center;
}

/* Perspective floor grid */
.g-hero__grid {
  position: absolute; inset: auto 0 0 0; height: 46%;
  background-image:
    linear-gradient(rgba(53, 208, 255, .30) 1px, transparent 1px),
    linear-gradient(90deg, rgba(53, 208, 255, .22) 1px, transparent 1px);
  background-size: 100% 26px, 40px 100%;
  transform: perspective(240px) rotateX(62deg);
  transform-origin: bottom center;
  opacity: .5;
  mask-image: linear-gradient(180deg, transparent, #000 55%);
  -webkit-mask-image: linear-gradient(180deg, transparent, #000 55%);
}

/* Blocky skyline built from repeating gradients — no images needed */
.g-hero__skyline {
  position: absolute; inset: auto 0 30% 0; height: 130px;
  opacity: .35;
  background-repeat: repeat-x;
  background-position: bottom left;
  background-size: 220px 130px;
  background-image:
    linear-gradient(to top, #1d2445 0 100%),
    none;
  clip-path: polygon(
    0% 100%, 0% 58%, 6% 58%, 6% 40%, 13% 40%, 13% 66%, 19% 66%, 19% 30%,
    26% 30%, 26% 52%, 33% 52%, 33% 22%, 39% 22%, 39% 60%, 46% 60%, 46% 44%,
    53% 44%, 53% 16%, 59% 16%, 59% 50%, 66% 50%, 66% 34%, 72% 34%, 72% 62%,
    79% 62%, 79% 26%, 86% 26%, 86% 56%, 93% 56%, 93% 38%, 100% 38%, 100% 100%
  );
}

.g-hero__inner { position: relative; z-index: 2; }

.g-eyebrow {
  text-transform: uppercase; letter-spacing: .14em; font-size: var(--fs-300);
  font-weight: 700; color: var(--neo-cyan); margin-bottom: var(--sp-4);
}

.g-title { margin: 0; }
.g-title__main {
  display: inline-block;
  font-size: clamp(3.2rem, 13vw, 7rem);
  line-height: .95;
  font-weight: 800;
  letter-spacing: -.03em;
  color: #fff;
  text-shadow:
    0 0 12px rgba(139, 92, 246, .9),
    0 0 42px rgba(139, 92, 246, .55),
    0 3px 0 #6d28d9;
}

.g-slogan {
  margin: var(--sp-4) auto 0;
  font-size: clamp(1rem, 3.4vw, 1.35rem);
  font-weight: 700;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--neo-amber);
}

.g-lede {
  margin: var(--sp-5) auto 0;
  max-width: 56ch;
  font-size: var(--fs-500);
  color: #b6bfe8;
}

.g-actions { margin-top: var(--sp-6); display: flex; gap: var(--sp-3); justify-content: center; flex-wrap: wrap; }
.g-actions--center { margin-top: var(--sp-7); }

/* The play button gets a little extra presence without leaving the system */
.g-play {
  box-shadow: 0 0 0 0 rgba(139, 92, 246, .55);
  animation: g-pulse 2.6s ease-out infinite;
}
@keyframes g-pulse {
  0%   { box-shadow: 0 0 0 0 rgba(139, 92, 246, .55); }
  70%  { box-shadow: 0 0 0 18px rgba(139, 92, 246, 0); }
  100% { box-shadow: 0 0 0 0 rgba(139, 92, 246, 0); }
}
@media (prefers-reduced-motion: reduce) { .g-play { animation: none; } }

.g-hero .btn--secondary { color: #cfd6f7; border-color: rgba(207, 214, 247, .45); }
.g-hero .btn--secondary:hover { background: rgba(207, 214, 247, .12); color: #fff; }

.g-note { margin: var(--sp-5) auto 0; max-width: 46ch; font-size: var(--fs-300); color: #8e98c6; }

/* ---- Feature cards ------------------------------------------------------ */
.g-cards {
  display: grid; gap: var(--sp-5);
  grid-template-columns: repeat(auto-fit, minmax(268px, 1fr));
}
.g-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: var(--sp-5);
  border-top: 3px solid var(--accent);
}
.g-card h3 { margin-bottom: var(--sp-3); }
.g-card p { color: var(--body); max-width: none; }

/* ---- Controls ----------------------------------------------------------- */
.g-controls { display: grid; gap: var(--sp-6); grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.g-controls__col h3 { margin-bottom: var(--sp-4); }
.g-keys { list-style: none; padding: 0; display: grid; gap: var(--sp-3); }
.g-keys li { display: flex; align-items: baseline; gap: var(--sp-2); flex-wrap: wrap; color: var(--body); }
.g-key {
  display: inline-block;
  font: 600 var(--fs-300)/1 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  background: var(--surface); border: 1px solid var(--line); border-bottom-width: 2px;
  border-radius: 6px; padding: .35em .5em; color: var(--ink); white-space: nowrap;
}

/* A note that qualifies the section above it. */
.note-strip {
  margin-top: var(--sp-5);
  padding: var(--sp-4) var(--sp-5);
  background: var(--surface);
  border: 1px solid var(--line);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius-sm);
  font-size: var(--fs-300);
  color: var(--body);
  max-width: none;
}

/* ---- Closing strip ------------------------------------------------------ */
.g-strip { max-width: var(--maxw-prose); }
.g-strip h2 { margin-bottom: var(--sp-4); }
.g-strip p { margin-bottom: var(--sp-4); }