:root {
  /* BK old-logo palette (sampled): red, yellow/orange, blue. */
  --bk-red:    #D62300;
  --bk-yellow: #F5B400;
  --bk-blue:   #0052A0;
  --bk-cream:  #FFF6E0;
  --bk-ink:    #2A1A0A;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  font-family: "Helvetica Neue", Arial, sans-serif;
  background:
    radial-gradient(circle at 15% 10%, #ffd86b 0%, transparent 45%),
    radial-gradient(circle at 85% 90%, #ffb600 0%, transparent 45%),
    linear-gradient(180deg, #FFDD66 0%, #F5B400 100%);
  min-height: 100vh;
  color: var(--bk-ink);
}

body {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 32px 16px 56px;
}

.card {
  width: min(640px, 100%);
  background: #fff;
  border-radius: 18px;
  padding: 28px 28px 32px;
  box-shadow:
    0 10px 0 var(--bk-red),
    0 22px 40px rgba(0, 0, 0, 0.25);
  border: 4px solid var(--bk-blue);
  position: relative;
}

/* Brand */
.brand {
  text-align: center;
  margin-bottom: 22px;
}
.logo {
  width: 140px;
  height: auto;
  display: block;
  margin: 0 auto 6px;
  filter: drop-shadow(0 4px 6px rgba(0, 0, 0, 0.18));
}
.brand h1 {
  margin: 6px 0 4px;
  font-size: 38px;
  font-weight: 900;
  letter-spacing: 2px;
  color: var(--bk-red);
  text-transform: uppercase;
  text-shadow: 2px 2px 0 var(--bk-yellow);
}
.brand h1 span {
  color: var(--bk-blue);
  text-shadow: 2px 2px 0 var(--bk-yellow);
}
.tagline {
  margin: 0;
  font-style: italic;
  color: var(--bk-ink);
  opacity: 0.7;
}

.controls {
  display: flex;
  flex-direction: column;
  gap: 18px;
  margin-bottom: 22px;
}

.field label {
  display: block;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--bk-red);
  font-size: 13px;
  margin-bottom: 6px;
}

.row {
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
}

input[type="time"], input[type="number"] {
  font-size: 18px;
  font-weight: 700;
  padding: 10px 14px;
  border: 3px solid var(--bk-red);
  border-radius: 10px;
  background: #fff;
  color: var(--bk-ink);
  outline: none;
  transition: box-shadow 0.15s;
  min-width: 140px;
}
input[type="number"] { max-width: 110px; }
input:focus {
  box-shadow: 0 0 0 4px rgba(245, 180, 0, 0.45);
}

.suffix {
  font-weight: 700;
  color: var(--bk-blue);
  text-transform: uppercase;
  letter-spacing: 1px;
  font-size: 13px;
}

.hint {
  display: block;
  margin-top: 6px;
  color: var(--bk-ink);
  opacity: 0.6;
  font-size: 12px;
}

.actions {
  display: flex;
  gap: 10px;
  margin-top: 4px;
}

.btn {
  font: inherit;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  padding: 12px 22px;
  border: none;
  border-radius: 999px;
  cursor: pointer;
  transition: transform 0.1s, box-shadow 0.1s, background 0.15s;
  box-shadow: 0 4px 0 rgba(0,0,0,0.15);
}
.btn:hover:not(:disabled) { transform: translateY(-1px); }
.btn:active:not(:disabled) { transform: translateY(2px); box-shadow: 0 2px 0 rgba(0,0,0,0.15); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

.btn-red {
  background: var(--bk-red);
  color: #fff;
  border: 3px solid var(--bk-yellow);
}
.btn-red:hover:not(:disabled) { background: #b81d00; }
.btn-yellow {
  background: var(--bk-yellow);
  color: var(--bk-ink);
  border: 3px solid var(--bk-red);
}
.btn-yellow:hover:not(:disabled) { background: #e09f00; }
.btn-ghost {
  background: #fff;
  color: var(--bk-blue);
  border: 3px solid var(--bk-blue);
  box-shadow: none;
}
.btn-ghost:hover:not(:disabled) { background: rgba(0, 82, 160, 0.08); }

/* Display */
.display {
  background: var(--bk-blue);
  color: var(--bk-yellow);
  border-radius: 14px;
  padding: 20px;
  text-align: center;
  border: 4px solid var(--bk-red);
}
.status {
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--bk-yellow);
  margin-bottom: 8px;
  font-weight: 700;
}
.countdown {
  font-family: "Courier New", monospace;
  font-size: 56px;
  font-weight: 900;
  letter-spacing: 4px;
  line-height: 1;
  color: var(--bk-yellow);
  text-shadow: 0 0 12px rgba(245, 180, 0, 0.5);
}
.countdown.warning { color: #fff; animation: pulse 1s infinite; }
.countdown.fired { color: #fff; background: var(--bk-red); border-radius: 8px; }
.meta {
  margin-top: 10px;
  font-size: 14px;
  color: #fff;
  opacity: 0.85;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50%      { opacity: 0.55; }
}

/* Alert overlay */
.alert-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 82, 160, 0.55);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 999;
  animation: flash 0.6s infinite alternate;
}
.alert-overlay[hidden] { display: none; }
@keyframes flash {
  from { background: rgba(214, 35, 0, 0.55); }
  to   { background: rgba(245, 180, 0, 0.55); }
}
.alert-box {
  background: #fff;
  border: 6px solid var(--bk-blue);
  border-radius: 18px;
  padding: 28px 28px 24px;
  text-align: center;
  max-width: 440px;
  box-shadow: 0 16px 40px rgba(0,0,0,0.35);
  animation: bounce 0.5s infinite alternate;
}
@keyframes bounce {
  from { transform: translateY(-6px); }
  to   { transform: translateY(6px); }
}
.alert-logo {
  width: 110px;
  height: auto;
  display: block;
  margin: 0 auto 8px;
}
.alert-box h2 {
  margin: 4px 0 10px;
  font-size: 28px;
  color: var(--bk-red);
  letter-spacing: 2px;
  text-shadow: 2px 2px 0 var(--bk-yellow);
}
.alert-box p { font-size: 16px; margin: 0 0 18px; color: var(--bk-ink); }

/* Whopper confetti */
.whopper-storm {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 1500;
  overflow: hidden;
}
.whopper-storm[hidden] { display: none; }
.whopper {
  position: absolute;
  top: 0;
  left: 0;
  user-select: none;
  will-change: transform;
  filter: drop-shadow(0 8px 12px rgba(0,0,0,0.35));
}
.whopper img {
  display: block;
  width: 100%;
  height: auto;
  pointer-events: none;
}

@media (max-width: 480px) {
  .countdown { font-size: 40px; }
  .brand h1 { font-size: 30px; }
  .logo { width: 110px; }
}