/* SIMPL — shared design system
   Midnight palette, posture-23 rhythm. Used by every page. */

:root {
  --bg: #0E0F10;
  --bg-soft: #15171A;
  --fg: #EDEBE4;
  --muted: #8B8A85;
  --rule: #262829;
  --accent: #8FB4A8;
  --accent-soft: rgba(143,180,168,0.10);
  --accent-ink: #0E0F10;
  --pulse: #8FB4A8;
  --aura-opacity: 0.32;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
html, body {
  margin: 0; padding: 0;
  background: var(--bg); color: var(--fg);
}
body {
  font-family: "Inter", system-ui, -apple-system, Helvetica, Arial, sans-serif;
  font-size: 17px;
  line-height: 1.6;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  font-feature-settings: "ss01", "cv11";
}
::selection { background: var(--accent); color: var(--accent-ink); }
.mono {
  font-family: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  font-feature-settings: "ss02", "calt", "zero";
}

/* Page-wide ambient glow auras */
body::before, body::after {
  content: "";
  position: fixed; pointer-events: none; z-index: 0;
  width: 80vw; height: 80vw; max-width: 1200px; max-height: 1200px;
  border-radius: 50%;
  filter: blur(120px);
  opacity: var(--aura-opacity);
}
body::before {
  top: -20vw; left: -20vw;
  background: radial-gradient(circle, var(--accent) 0%, transparent 60%);
}
body::after {
  bottom: -25vw; right: -20vw;
  background: radial-gradient(circle, var(--accent) 0%, transparent 60%);
  opacity: calc(var(--aura-opacity) * 0.6);
}
#root { position: relative; z-index: 1; }

.reveal { opacity: 0; transform: translateY(10px); transition: opacity 900ms cubic-bezier(.2,.6,.2,1), transform 900ms cubic-bezier(.2,.6,.2,1); }
.reveal.in { opacity: 1; transform: none; }

@keyframes pulse {
  0%, 100% { transform: scale(1); opacity: 1; }
  50%      { transform: scale(1.15); opacity: 0.55; }
}
.pulse-dot { animation: pulse 2.2s ease-in-out infinite; }

/* Scanning shimmer line */
@keyframes shimmer {
  0%   { transform: translateX(-100%); }
  100% { transform: translateX(300%); }
}
.shimmer-line {
  position: relative; height: 1px; width: 64px;
  background: var(--rule); overflow: hidden;
}
.shimmer-line::after {
  content: ""; position: absolute; inset: 0;
  width: 40%;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  animation: shimmer 3.6s ease-in-out infinite;
}

/* Decorative corner ticks */
.ticks { position: relative; }
.ticks::before, .ticks::after,
.ticks > .tick-bl, .ticks > .tick-br {
  content: ""; position: absolute; width: 10px; height: 10px;
  border-color: var(--accent); opacity: 0.55;
  pointer-events: none;
}
.ticks::before { top: -1px; left: -1px; border-top: 1px solid; border-left: 1px solid; }
.ticks::after  { top: -1px; right: -1px; border-top: 1px solid; border-right: 1px solid; }
.ticks > .tick-bl { bottom: -1px; left: -1px; border-bottom: 1px solid var(--accent); border-left: 1px solid var(--accent); opacity: 0.55; }
.ticks > .tick-br { bottom: -1px; right: -1px; border-bottom: 1px solid var(--accent); border-right: 1px solid var(--accent); opacity: 0.55; }

.grid-bg {
  background-image:
    linear-gradient(to right, var(--rule) 1px, transparent 1px),
    linear-gradient(to bottom, var(--rule) 1px, transparent 1px);
  background-size: 56px 56px;
  background-position: center;
  mask-image: radial-gradient(ellipse 60% 60% at center, #000 20%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 60% 60% at center, #000 20%, transparent 75%);
}

/* CTA buttons */
.cta-primary {
  position: relative; overflow: hidden;
  background: var(--accent);
  transition: transform 220ms ease, box-shadow 220ms ease, filter 220ms ease;
  box-shadow: 0 1px 0 rgba(0,0,0,0.04), 0 8px 28px -16px var(--accent);
}
.cta-primary:hover {
  transform: translateY(-1px);
  filter: brightness(1.05);
  box-shadow: 0 1px 0 rgba(0,0,0,0.04), 0 14px 40px -18px var(--accent);
}
.cta-primary::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(120deg, transparent 30%, rgba(255,255,255,0.18) 50%, transparent 70%);
  transform: translateX(-100%);
  transition: transform 700ms ease;
}
.cta-primary:hover::after { transform: translateX(100%); }

.cta-ghost {
  transition: transform 220ms ease, border-color 220ms ease, color 220ms ease;
}
.cta-ghost:hover { transform: translateY(-1px); border-color: var(--accent); color: var(--accent); }

/* Finding row hover indicator */
.finding-row { position: relative; transition: background 240ms ease; }
.finding-row::before {
  content: ""; position: absolute; left: 0; top: 50%; height: 0; width: 2px;
  background: var(--accent); transform: translateY(-50%);
  transition: height 280ms cubic-bezier(.4,0,.2,1);
}
.finding-row:hover { background: var(--accent-soft); }
.finding-row:hover::before { height: 60%; }

/* Scan input glow on focus */
.scan-form { position: relative; transition: border-color 240ms ease; }
.scan-glow {
  position: absolute; left: 0; right: 0; bottom: -1px; height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  transform: scaleX(0); transform-origin: center;
  transition: transform 600ms cubic-bezier(.2,.6,.2,1);
  pointer-events: none;
}
.scan-form:focus-within .scan-glow { transform: scaleX(1); }

/* Header nav link hover */
.nav-link { color: var(--fg); text-decoration: none; font-size: 15px; font-weight: 400; position: relative; padding: 6px 0; transition: color 200ms ease; }
.nav-link::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 1px;
  background: var(--accent); transform: scaleX(0); transform-origin: left;
  transition: transform 280ms cubic-bezier(.2,.6,.2,1);
}
.nav-link:hover { color: var(--accent); }
.nav-link:hover::after { transform: scaleX(1); }
.nav-link.active { color: var(--accent); }
.nav-link.active::after { transform: scaleX(1); }

@keyframes fadeSwap { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; transform: none; } }

button, a, input, textarea, select { font-family: inherit; }
button:focus-visible, a:focus-visible, input:focus-visible, textarea:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .pulse-dot, .shimmer-line::after, .cta-primary::after { animation: none; }
}