/* cybersecurity.codes — GCCA bunker terminal
   CRT phosphor theme. Strict CSP: all styles live here, none inline. */

:root {
  --bg: #020a03;
  --bg-panel: #04140699;
  --green: #33ff66;
  --green-dim: #1d9c44;
  --green-faint: #0f5a28;
  --amber: #ffb000;
  --red: #ff3b3b;
  --glow: 0 0 6px rgba(51, 255, 102, 0.55);
  --glow-strong: 0 0 4px rgba(51, 255, 102, 0.9), 0 0 18px rgba(51, 255, 102, 0.35);
}

* { box-sizing: border-box; }

html { background: var(--bg); }

body {
  margin: 0;
  min-height: 100vh;
  background: radial-gradient(ellipse at center, #04170a 0%, var(--bg) 75%);
  color: var(--green);
  font-family: "VT323", "Courier New", monospace;
  font-size: 1.25rem;
  line-height: 1.35;
  text-shadow: var(--glow);
  padding: 0 1rem 2rem;
}

/* ---- CRT overlay: scanlines + vignette + flicker ---- */
.crt {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 10;
  background:
    repeating-linear-gradient(
      to bottom,
      rgba(0, 0, 0, 0) 0px,
      rgba(0, 0, 0, 0) 2px,
      rgba(0, 0, 0, 0.22) 3px,
      rgba(0, 0, 0, 0) 4px
    ),
    radial-gradient(ellipse at center, rgba(0, 0, 0, 0) 55%, rgba(0, 0, 0, 0.5) 100%);
  animation: flicker 4s infinite;
}

@keyframes flicker {
  0%, 100% { opacity: 1; }
  92%      { opacity: 1; }
  93%      { opacity: 0.82; }
  94%      { opacity: 1; }
  97%      { opacity: 0.93; }
  98%      { opacity: 1; }
}

/* ---- skip link ---- */
.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--green);
  color: #000;
  padding: 0.4rem 0.8rem;
  z-index: 20;
  text-shadow: none;
}
.skip-link:focus { left: 0.5rem; top: 0.5rem; }

:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 2px;
}

/* ---- header ---- */
header { text-align: center; max-width: 68rem; margin: 0 auto; }

.banner {
  background: var(--red);
  color: #000;
  text-shadow: none;
  font-size: 1rem;
  letter-spacing: 0.18em;
  padding: 0.25rem 0.5rem;
  margin: 0 -1rem 1.4rem;
}

h1 {
  font-size: clamp(1.6rem, 5.5vw, 3.2rem);
  font-weight: 400;
  letter-spacing: 0.12em;
  margin: 0 0 0.3rem;
  text-shadow: var(--glow-strong);
}

.terminal-line {
  color: var(--green-dim);
  font-size: 1.05rem;
  letter-spacing: 0.08em;
  margin: 0 0 1rem;
  min-height: 1.4em;
}

/* ---- rotation / countdown ---- */
main { max-width: 68rem; margin: 0 auto; }
main:focus { outline: none; }

.rotation {
  text-align: center;
  border-top: 1px solid var(--green-faint);
  border-bottom: 1px solid var(--green-faint);
  padding: 0.8rem 0;
  margin-bottom: 1.8rem;
}

.rotation p { margin: 0.2rem 0; }

.opday { color: var(--green-dim); font-size: 1.05rem; letter-spacing: 0.1em; }

.countdown-line { font-size: 1.4rem; letter-spacing: 0.08em; }

.countdown {
  color: var(--amber);
  text-shadow: 0 0 8px rgba(255, 176, 0, 0.6);
}

.countdown.critical {
  color: var(--red);
  text-shadow: 0 0 8px rgba(255, 59, 59, 0.7);
  animation: blink 1s steps(2, start) infinite;
}

@keyframes blink { 50% { opacity: 0.25; } }

.rotating-notice {
  color: var(--amber);
  letter-spacing: 0.15em;
  animation: blink 0.6s steps(2, start) infinite;
}

/* ---- code panels ---- */
.section-title {
  font-size: 1.15rem;
  font-weight: 400;
  color: var(--amber);
  letter-spacing: 0.16em;
  text-shadow: 0 0 8px rgba(255, 176, 0, 0.45);
  margin: 1.6rem 0 0.8rem;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 0.9rem;
}

.panel {
  border: 1px solid var(--green-dim);
  background: var(--bg-panel);
  padding: 0.7rem 0.9rem 0.8rem;
  position: relative;
  /* panels are <button>s (click to copy) — reset button chrome */
  font-family: inherit;
  color: inherit;
  text-shadow: inherit;
  text-align: left;
  line-height: inherit;
  cursor: pointer;
  width: 100%;
}

.panel:hover { background: rgba(51, 255, 102, 0.08); border-color: var(--green); }

.panel.copied { border-color: var(--amber); }
.panel.copied .panel-note {
  color: var(--amber);
  text-shadow: 0 0 8px rgba(255, 176, 0, 0.45);
}

.panel::before {
  content: "";
  position: absolute;
  inset: 3px;
  border: 1px solid var(--green-faint);
  pointer-events: none;
}

.panel-label {
  display: block;
  color: var(--amber);
  font-size: 0.95rem;
  letter-spacing: 0.14em;
  margin-bottom: 0.35rem;
}

.panel-value {
  display: block;
  font-size: clamp(1.5rem, 3.2vw, 2.1rem);
  letter-spacing: 0.05em;
  min-height: 1.2em;
  text-shadow: var(--glow-strong);
  overflow-wrap: anywhere;
}

.panel-value .cursor { animation: blink 0.8s steps(2, start) infinite; }

.panel-note {
  display: block;
  color: var(--green-dim);
  font-size: 1rem;
  margin-top: 0.35rem;
}

.noscript-warning { color: var(--red); font-size: 1.3rem; }

/* ---- copy hint ---- */
.copy-hint {
  margin-top: 1.2rem;
  color: var(--green-dim);
  font-size: 1rem;
  letter-spacing: 0.1em;
}

/* ---- FAQ ---- */
.faq { margin-top: 1.5rem; }

.faq details {
  border: 1px solid var(--green-faint);
  margin-bottom: 0.5rem;
  background: var(--bg-panel);
}

.faq summary {
  cursor: pointer;
  padding: 0.55rem 0.9rem;
  color: var(--green);
  letter-spacing: 0.04em;
  list-style: none;
}

.faq summary::before { content: "[+] "; color: var(--amber); }
.faq details[open] summary::before { content: "[-] "; }
.faq summary::-webkit-details-marker { display: none; }

.faq summary:hover { background: rgba(51, 255, 102, 0.08); }

.faq details[open] { border-color: var(--green-dim); }

.faq details p {
  margin: 0;
  padding: 0.2rem 0.9rem 0.8rem;
  color: var(--green-dim);
  font-size: 1.1rem;
}

/* ---- ticker + footer ---- */
.ticker {
  margin-top: 2rem;
  border-top: 1px solid var(--green-faint);
  padding-top: 0.7rem;
  color: var(--green-dim);
  font-size: 1.05rem;
  letter-spacing: 0.06em;
  text-align: center;
}

footer {
  max-width: 68rem;
  margin: 2.5rem auto 0;
  color: var(--green-faint);
  font-size: 1rem;
  text-align: center;
  text-shadow: none;
}

footer p { margin: 0.3rem 0; }

/* ---- accessibility fallbacks ---- */
@media (prefers-reduced-motion: reduce) {
  .crt, .countdown.critical, .rotating-notice, .panel-value .cursor { animation: none; }
  .scanbar-fill { transition: none; }
}

@media (forced-colors: active) {
  .crt { display: none; }
  body, h1, .panel-value { text-shadow: none; }
}