:root {
  --event-ink: #edf5f7;
  --event-muted: #a6b8bf;
  --event-line: rgba(160, 195, 199, 0.16);
  --event-panel: rgba(12, 27, 38, 0.88);
  --event-mint: #76e4c1;
  --event-amber: #f3c779;
}

[hidden] { display: none !important; }

.cipher-day-page {
  visibility: hidden;
  min-height: 100vh;
  color: var(--event-ink);
  background:
    radial-gradient(ellipse at 82% 0%, rgba(32, 122, 111, .24), transparent 34rem),
    radial-gradient(ellipse at 8% 32%, rgba(32, 81, 115, .18), transparent 32rem),
    #08121b;
}

.cipher-day-page.is-authenticated {
  visibility: visible;
}

.cipher-day-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  min-height: 72px;
  padding: 14px max(22px, calc((100vw - 1200px) / 2));
  border-bottom: 1px solid var(--event-line);
  background: rgba(7, 16, 25, .82);
}

.cipher-day-brand {
  display: flex;
  align-items: center;
  gap: 11px;
  font-weight: 800;
  letter-spacing: .02em;
}

.cipher-day-brand-mark {
  display: grid;
  width: 36px;
  height: 36px;
  place-items: center;
  border: 1px solid rgba(118, 228, 193, .4);
  border-radius: 11px;
  color: var(--event-mint);
  background: rgba(38, 115, 99, .18);
}

.cipher-day-brand small {
  display: block;
  color: var(--event-muted);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: .15em;
  text-transform: uppercase;
}

.cipher-day-top-links {
  display: flex;
  align-items: center;
  gap: 18px;
  color: #c4d2d7;
  font-size: 13px;
  font-weight: 700;
}

.cipher-day-top-links a:hover { color: var(--event-mint); }

.cipher-day-wrap {
  width: min(1200px, calc(100% - 40px));
  margin: 0 auto;
  padding: 42px 0 56px;
}

.cipher-day-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 260px;
  align-items: end;
  gap: 30px;
  padding: 20px 0 30px;
}

.cipher-day-kicker {
  color: var(--event-mint);
  font: 800 11px/1.5 ui-monospace, SFMono-Regular, Menlo, monospace;
  letter-spacing: .18em;
  text-transform: uppercase;
}

.cipher-day-hero h1 {
  margin: 10px 0 12px;
  font-size: clamp(38px, 6vw, 68px);
  line-height: .98;
  letter-spacing: -.055em;
}

.cipher-day-lede {
  max-width: 720px;
  color: #b6c6cc;
  font-size: clamp(15px, 2vw, 18px);
  line-height: 1.7;
}

.cipher-day-clock, .cipher-day-panel {
  border: 1px solid var(--event-line);
  border-radius: 16px;
  background: var(--event-panel);
  box-shadow: 0 18px 60px rgba(0, 0, 0, .15);
}

.cipher-day-clock { padding: 19px; }
.cipher-day-clock-label, .cipher-day-label {
  color: #8fa5ad;
  font: 800 10px/1.5 ui-monospace, SFMono-Regular, Menlo, monospace;
  letter-spacing: .14em;
  text-transform: uppercase;
}

.cipher-day-clock-value {
  margin: 8px 0 3px;
  color: var(--event-amber);
  font: 800 28px/1.2 ui-monospace, SFMono-Regular, Menlo, monospace;
}

.cipher-day-clock small { color: #8599a1; }

.cipher-day-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(280px, .7fr);
  gap: 18px;
  align-items: start;
}

.cipher-day-panel { overflow: hidden; }
.cipher-day-panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 16px 19px;
  border-bottom: 1px solid var(--event-line);
}

.cipher-day-panel-head h2 { margin: 0; font-size: 15px; }
.cipher-day-panel-body { padding: 20px; }
.cipher-day-panel-body p { color: #b6c6cc; line-height: 1.72; }

.cipher-day-chip {
  border: 1px solid rgba(118, 228, 193, .3);
  border-radius: 999px;
  padding: 6px 10px;
  color: var(--event-mint);
  background: rgba(23, 80, 68, .2);
  font: 800 10px ui-monospace, SFMono-Regular, Menlo, monospace;
  letter-spacing: .08em;
  text-transform: uppercase;
  white-space: nowrap;
}

.cipher-day-facts {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-top: 20px;
}

.cipher-day-fact {
  padding: 13px;
  border: 1px solid rgba(160, 195, 199, .13);
  border-radius: 11px;
  background: rgba(5, 15, 23, .62);
}

.cipher-day-fact strong { display: block; font-size: 12px; }
.cipher-day-fact span { display: block; margin-top: 5px; color: var(--event-muted); font-size: 11px; }
.cipher-day-objectives { padding-left: 21px; color: #bccbd0; line-height: 1.65; }
.cipher-day-objectives li { padding: 0 0 10px 4px; }
.cipher-day-objectives li::marker { color: var(--event-mint); font-weight: 900; }

.cipher-day-action-row {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 19px;
}

.cipher-day-button, .cipher-day-button-secondary {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  gap: 9px;
  border: 0;
  border-radius: 10px;
  padding: 11px 16px;
  color: #071b16;
  background: var(--event-mint);
  font-weight: 900;
  transition: transform .16s ease, background .16s ease;
}

.cipher-day-button:hover { transform: translateY(-1px); background: #9af0d4; }
.cipher-day-button-secondary {
  border: 1px solid var(--event-line);
  color: #d7e3e6;
  background: #152633;
}

.cipher-day-button:disabled { cursor: not-allowed; opacity: .48; transform: none; }
.cipher-day-message { min-height: 20px; color: var(--event-muted); font-size: 12px; }
.cipher-day-machine-card { margin-top: 19px; }
.cipher-day-machine-card img { width: 100%; aspect-ratio: 16/8; object-fit: cover; }
.cipher-day-machine-visual {
  display: grid;
  min-height: 180px;
  place-items: center;
  border-bottom: 1px solid var(--event-line);
  color: rgba(118, 228, 193, .82);
  background:
    linear-gradient(rgba(7, 17, 26, .18), rgba(7, 17, 26, .88)),
    repeating-linear-gradient(0deg, transparent 0 23px, rgba(118, 228, 193, .07) 24px),
    repeating-linear-gradient(90deg, transparent 0 23px, rgba(118, 228, 193, .07) 24px),
    #0d2530;
  font-size: 52px;
}

.cipher-day-machine-visual span { display: grid; width: 92px; height: 92px; place-items: center; border: 1px solid rgba(118, 228, 193, .42); border-radius: 26px; background: rgba(3, 16, 23, .56); }
.cipher-day-meta { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
.cipher-day-meta span { border: 1px solid var(--event-line); border-radius: 999px; padding: 6px 9px; color: #bdd0d5; font-size: 11px; }
.cipher-day-callout { margin-top: 15px; border-left: 2px solid var(--event-amber); padding: 10px 12px; color: #cbbd9e; background: rgba(96, 68, 23, .14); font-size: 12px; line-height: 1.6; }
.cipher-day-steps { display: grid; gap: 11px; margin-top: 15px; }
.cipher-day-step { display: flex; align-items: flex-start; gap: 11px; color: #c1cdd1; font-size: 13px; line-height: 1.5; }
.cipher-day-step b { display: grid; width: 23px; height: 23px; flex: 0 0 auto; place-items: center; border-radius: 7px; color: #071b16; background: var(--event-mint); font-size: 11px; }
.cipher-day-page-footer { padding: 22px 20px; border-top: 1px solid var(--event-line); color: #81949c; text-align: center; font-size: 11px; }

.cipher-day-machine-layout { display: grid; grid-template-columns: minmax(0, 1fr) 290px; gap: 16px; margin-top: 21px; align-items: start; }
.cipher-day-screen { overflow: hidden; border: 1px solid var(--event-line); border-radius: 13px; background: #050a0e; }
.cipher-day-screen-head { display: flex; justify-content: space-between; gap: 12px; padding: 12px 15px; border-bottom: 1px solid var(--event-line); color: #bdcbd0; font-size: 12px; }
#cipherDayScreen { display: grid; min-height: 500px; place-items: center; padding: 12px; outline: none; background: #0a1620; }
#cipherDayScreen #screen { color: #d8e3ee; }
#cipherDayScreen #vga { display: block; width: min(100%, 1024px); height: auto; image-rendering: auto !important; }
.cipher-day-screen-note { padding: 11px 14px; border-top: 1px solid var(--event-line); color: #91a1a8; font-size: 11px; line-height: 1.6; }
.cipher-day-machine-side { display: grid; gap: 14px; }
.cipher-day-machine-side .cipher-day-panel-body { padding: 16px; }
.cipher-day-flag-form { display: flex; gap: 8px; margin-top: 12px; }
.cipher-day-flag-form input { width: 100%; min-width: 0; border: 1px solid #344d59; border-radius: 8px; padding: 10px; color: var(--event-ink); background: #08131d; font: 13px ui-monospace, SFMono-Regular, Menlo, monospace; }
.cipher-day-result { min-height: 22px; margin-top: 10px; color: var(--event-muted); font-size: 12px; }
.cipher-day-result.success { color: var(--event-mint); }
.cipher-day-result.error { color: #ff9a93; }
.cipher-day-console { margin-top: 12px; }
.cipher-day-console summary { color: #aebfc4; cursor: pointer; font-size: 12px; }
.cipher-day-console textarea { width: 100%; height: 130px; margin-top: 8px; border: 1px solid var(--event-line); border-radius: 8px; padding: 9px; color: #d7e0e3; background: #060c11; font: 10px/1.45 ui-monospace, monospace; }
.cipher-day-console-form { display: flex; gap: 6px; margin-top: 7px; }
.cipher-day-console-form input { min-width: 0; flex: 1; border: 1px solid var(--event-line); border-radius: 7px; padding: 8px; color: var(--event-ink); background: #08131d; font: 11px ui-monospace, monospace; }
.cipher-day-console-form button { border: 1px solid var(--event-line); border-radius: 7px; padding: 7px 9px; color: var(--event-mint); background: #13251f; font-size: 11px; font-weight: 800; }
.cipher-day-console-form button:disabled { opacity: .5; }
.cipher-day-promo {
  display: flex;
  align-items: center;
  gap: 15px;
  margin: 0 0 22px;
  border: 1px solid rgba(118, 228, 193, .3);
  border-radius: 14px;
  padding: 16px 18px;
  background: linear-gradient(110deg, rgba(24, 89, 77, .35), rgba(13, 30, 43, .95));
}
.cipher-day-promo[hidden] { display: none; }
.cipher-day-promo-icon { display: grid; width: 42px; height: 42px; flex: 0 0 auto; place-items: center; border-radius: 12px; color: var(--event-mint); background: rgba(118, 228, 193, .12); font-size: 18px; }
.cipher-day-promo-copy { display: grid; gap: 2px; flex: 1; }
.cipher-day-promo-copy strong { color: var(--event-ink); }
.cipher-day-promo-copy span { color: var(--event-muted); font-size: 12px; }
.cipher-day-promo-action { color: var(--event-mint); font-size: 12px; font-weight: 900; }

@media (max-width: 850px) {
  .cipher-day-hero, .cipher-day-grid, .cipher-day-machine-layout { grid-template-columns: 1fr; }
  .cipher-day-clock { max-width: 280px; }
  .cipher-day-machine-side { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 560px) {
  .cipher-day-topbar { min-height: 62px; padding: 12px 14px; }
  .cipher-day-top-links { gap: 11px; font-size: 11px; }
  .cipher-day-wrap { width: min(100% - 26px, 1200px); padding: 23px 0 38px; }
  .cipher-day-hero { gap: 18px; padding-top: 7px; }
  .cipher-day-facts { grid-template-columns: 1fr; }
  .cipher-day-machine-side { grid-template-columns: 1fr; }
  #cipherDayScreen { min-height: 300px; padding: 4px; }
  .cipher-day-flag-form { flex-direction: column; }
  .cipher-day-promo { align-items: flex-start; padding: 14px; }
  .cipher-day-promo-action { display: none; }
}