/* Y2K, 1999.

   The visual language of the millennium countdown page: black, a starfield, a
   cyan-to-magenta gradient on anything important, chrome-effect display type,
   and a clock made of glowing seven segment digits.

   The starfield is two repeating radial gradients rather than an image, and it
   sits behind a panel so it never gets under a sentence. The digits glow with a
   text shadow: the tint is what says "this is a display", and it is doing the
   job the animated GIF did in 1999 for none of the bytes. */

:root {
  --yk-cyan:    #22e0ff;
  --yk-magenta: #ff3fa4;
  --yk-lime:    #b6ff3f;
  --yk-panel:   #0b0d1a;
  --yk-ink:     #dfe4f5;
  --yk-dim:     #8b93b5;
  --yk-red:     #ff5470;
  --yk-orange:  #E87722;
}

body {
  background-color: #05060d;
  /* Two sizes of star, offset, so the pattern does not read as a grid. */
  background-image:
    radial-gradient(1.4px 1.4px at 22% 18%, rgba(255,255,255,.85) 50%, transparent 50%),
    radial-gradient(1px 1px   at 68% 42%, rgba(255,255,255,.55) 50%, transparent 50%),
    radial-gradient(1.2px 1.2px at 41% 77%, rgba(255,255,255,.7) 50%, transparent 50%);
  background-size: 260px 260px, 170px 170px, 320px 320px;
  color: var(--yk-ink);
  font: 16px/1.65 Verdana, Geneva, Arial, sans-serif;
  padding: 24px 12px 46px;
}

.yk {
  max-width: 820px;
  margin: 0 auto;
  background: var(--yk-panel);
  border: 1px solid #2a3050;
  box-shadow: 0 0 60px rgba(34, 224, 255, .12);
  padding: 26px 32px 34px;
}

a { color: var(--yk-cyan); }
a:hover, a:focus { color: var(--yk-lime); }

.yk-eyebrow {
  margin: 0 0 14px;
  font: 700 11px/1 "Courier New", monospace;
  letter-spacing: .34em; text-transform: uppercase;
  color: var(--yk-lime);
}

/* The chrome headline. A gradient clipped to the text, which is the 1999 look
   done in a way that stays selectable and readable. */
.yk h1 {
  font: 700 clamp(23px, 4.2vw, 36px)/1.2 Impact, "Haettenschweiler", "Arial Black", Arial, sans-serif;
  letter-spacing: .01em;
  margin: 0 0 14px;
  background: linear-gradient(180deg, #ffffff 0%, var(--yk-cyan) 45%, #1f7fd6 60%, #ffffff 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
/* A browser that cannot clip a background to text would render this invisible,
   so it gets a solid color instead. */
@supports not (background-clip: text) {
  .yk h1 { color: var(--yk-cyan); background: none; }
}

.yk h2 { font-size: 19px; color: var(--yk-magenta); margin: 32px 0 8px; }
.yk h3 { font-size: 15px; color: var(--yk-ink); margin: 16px 0 2px; }
.yk p  { margin: 8px 0; max-width: 70ch; }
.yk-lead { font-size: 17px; }
.yk-note { color: var(--yk-dim); font-size: 14px; }
.yk-list { margin: 8px 0; padding: 0 0 0 24px; max-width: 70ch; }
.yk-list li { margin-bottom: 9px; }

/* ── The clock ─────────────────────────────────────────────────────────── */

.yk-clock {
  border: 1px solid #2a3050;
  background: linear-gradient(#0a0f22, #05060d);
  padding: 20px 22px 18px;
  margin: 24px 0 8px;
  text-align: center;
}
.yk-clock-head {
  margin: 0 !important;
  font: 700 11px/1.4 "Courier New", monospace;
  letter-spacing: .3em; text-transform: uppercase;
  color: var(--yk-dim);
  max-width: none !important;
}
.yk-clock-label { margin: 4px 0 16px !important; color: var(--yk-magenta); font-weight: 700; max-width: none !important; }

.yk-digits {
  list-style: none; margin: 0; padding: 0;
  display: flex; justify-content: center; flex-wrap: wrap; gap: 10px 18px;
}
.yk-digits li { display: flex; flex-direction: column; align-items: center; gap: 5px; }
.yk-num {
  font: 700 clamp(28px, 6vw, 46px)/1 "Courier New", Consolas, monospace;
  color: var(--yk-cyan);
  background: #02040c;
  border: 1px solid #1c3a55;
  padding: 8px 12px;
  /* The glow is what makes it read as a display rather than as large text. */
  text-shadow: 0 0 10px rgba(34, 224, 255, .75), 0 0 22px rgba(34, 224, 255, .35);
  font-variant-numeric: tabular-nums;
}
.yk-unit {
  font: 700 10px/1 Verdana, Arial, sans-serif;
  letter-spacing: .22em; text-transform: uppercase;
  color: var(--yk-dim);
}
.yk-clock-note { margin: 18px auto 0 !important; text-align: left; color: var(--yk-dim); font-size: 14px; }

/* ── What actually happened ────────────────────────────────────────────── */

.yk-then { margin: 10px 0 0; max-width: 70ch; }
.yk-then dt { font-weight: 700; color: var(--yk-lime); margin-top: 16px; }
.yk-then dd { margin: 3px 0 0; color: #c3cae2; }

/* ── The form ──────────────────────────────────────────────────────────── */

.yk-box {
  border: 1px solid #2a3050;
  background: #080b18;
  padding: 18px 22px 22px;
  margin: 30px 0 0;
  max-width: 560px;
}
.yk-box h2 { margin-top: 0; }

.yk-field { margin: 0 0 12px; }
.yk-field label { display: block; font-size: 13px; color: var(--yk-cyan); margin-bottom: 4px; }
.yk-field input, .yk-field textarea {
  width: 100%; padding: 8px 10px;
  background: #02040c; color: var(--yk-ink);
  border: 1px solid #2a3050;
  font: 15px/1.5 Verdana, Geneva, Arial, sans-serif;
}
.yk-field input:focus, .yk-field textarea:focus { outline: 2px solid var(--yk-orange); outline-offset: 1px; border-color: var(--yk-cyan); }
.yk-field.is-bad input, .yk-field.is-bad textarea { border-color: var(--yk-red); }
.yk-field ::placeholder { color: #5b6488; }

.rt-field-err { color: var(--yk-red); font-size: 13px; margin: 4px 0 0; }
.rt-err { border: 1px solid var(--yk-red); color: var(--yk-red); padding: 10px 12px; font-size: 14px; margin: 0 0 12px; }

.yk-actions { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; margin: 16px 0 0; }
.yk-actions button {
  background: linear-gradient(90deg, var(--yk-cyan), var(--yk-magenta));
  color: #04060f; border: 0; padding: 11px 28px;
  font: 700 15px/1.2 Verdana, Geneva, Arial, sans-serif; cursor: pointer;
}
.yk-actions button:hover, .yk-actions button:focus { background: var(--yk-orange); color: #fff; }

/* ── The badge ─────────────────────────────────────────────────────────── */

.yk-badge { margin: 32px 0 0; border-top: 1px solid #2a3050; padding-top: 18px; text-align: center; }
.yk-badge-mark {
  display: inline-block; margin: 0 0 8px !important;
  border: 2px solid var(--yk-lime);
  color: var(--yk-lime);
  font: 700 13px/1 "Courier New", monospace;
  letter-spacing: .2em; text-transform: uppercase;
  padding: 9px 18px;
  max-width: none !important;
}
.yk-badge .yk-note { margin: 0 auto !important; max-width: 56ch; }

@media (max-width: 560px) {
  .yk { padding: 18px 16px 24px; }
  .yk-digits { gap: 8px 12px; }
  .yk-num { padding: 6px 8px; }
}