banner.css

/* ═══════════════════════════════════════════════════════════════
   banner.css — Event Banner Overlay
   Edit the :root variables below to restyle any future event.
   ═══════════════════════════════════════════════════════════════ */

/* ── Event theme tokens (edit these per event) ──────────────── */
:root {
  --banner-accent-1:   #ff6b00;   /* primary gradient start      */
  --banner-accent-2:   #ff0080;   /* primary gradient end        */
  --banner-accent-3:   #ffcc00;   /* highlight / star color      */
  --banner-accent-4:   #00cfff;   /* secondary accent / glow     */
  --banner-bg-overlay: rgba(0, 0, 0, 0.78); /* backdrop dim      */
  --banner-card-bg:    #0d0d1a;   /* card dark background        */
  --banner-radius:     20px;
  --banner-font-title: 'Arial Black', 'Impact', sans-serif;
  --banner-font-body:  'Arial', sans-serif;
}

/* ── Backdrop ────────────────────────────────────────────────── */
#event-banner-overlay {
  position: fixed;
  inset: 0;
  z-index: 9990;
  background: var(--banner-bg-overlay);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  box-sizing: border-box;
  overflow-y: auto;

  /* entrance animation */
  animation: bannerBackdropIn 0.4s ease forwards;
}

#event-banner-overlay.banner-hiding {
  animation: bannerBackdropOut 0.35s ease forwards;
}

@keyframes bannerBackdropIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}
@keyframes bannerBackdropOut {
  from { opacity: 1; }
  to   { opacity: 0; }
}

/* ── Card wrapper (16:9 enforced) ───────────────────────────── */
#event-banner-card {
  position: relative;
  width: min(860px, 100%);
  /* 16:9 using padding trick — relaxed below on small/short screens */
  aspect-ratio: 16 / 9;
  max-height: calc(100vh - 32px);
  background: var(--banner-card-bg);
  border-radius: var(--banner-radius);
  overflow: hidden;
  box-shadow:
    0 0 0 2px rgba(255,107,0,0.5),
    0 0 40px rgba(255,107,0,0.25),
    0 0 80px rgba(255,0,128,0.15),
    0 30px 60px rgba(0,0,0,0.6);

  animation: bannerCardIn 0.5s cubic-bezier(0.34, 1.56, 0.64, 1) 0.1s both;
}

/* On narrow or short viewports, ditch the strict 16:9 lock so content
   isn't squished or clipped — let it size to its content instead */
@media (max-width: 600px), (max-height: 600px) {
  #event-banner-card {
    aspect-ratio: auto;
    height: auto;
  }
}

@keyframes bannerCardIn {
  from { transform: scale(0.82) translateY(30px); opacity: 0; }
  to   { transform: scale(1)    translateY(0);    opacity: 1; }
}

#event-banner-overlay.banner-hiding #event-banner-card {
  animation: bannerCardOut 0.3s ease forwards;
}

@keyframes bannerCardOut {
  from { transform: scale(1)    translateY(0);    opacity: 1; }
  to   { transform: scale(0.9)  translateY(-20px); opacity: 0; }
}

/* ── Animated gradient background inside card ───────────────── */
#banner-bg-gradient {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    #1a0035 0%,
    #0d0d1a 30%,
    #001a35 60%,
    #1a000d 100%
  );
  z-index: 0;
}

/* Animated colour wash */
#banner-bg-gradient::after {
  content: '';
  position: absolute;
  inset: -50%;
  background: conic-gradient(
    from 0deg,
    transparent 0%,
    rgba(255,107,0,0.08) 15%,
    rgba(255,0,128,0.10) 30%,
    transparent 45%,
    rgba(0,207,255,0.07) 60%,
    rgba(255,204,0,0.06) 75%,
    transparent 90%
  );
  animation: bannerSpin 12s linear infinite;
}

@keyframes bannerSpin {
  to { transform: rotate(360deg); }
}

/* ── Particle stars ──────────────────────────────────────────── */
#banner-particles {
  position: absolute;
  inset: 0;
  z-index: 1;
  overflow: hidden;
  pointer-events: none;
}

.banner-star {
  position: absolute;
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: #fff;
  animation: starTwinkle var(--dur, 2s) ease-in-out infinite;
  animation-delay: var(--delay, 0s);
  opacity: 0;
}

@keyframes starTwinkle {
  0%, 100% { opacity: 0;   transform: scale(0.5); }
  50%       { opacity: 0.9; transform: scale(1.4); }
}

/* ── Decorative diagonal stripe ─────────────────────────────── */
#banner-stripe {
  position: absolute;
  top: -60px;
  right: -40px;
  width: 340px;
  height: 340px;
  background: linear-gradient(135deg, var(--banner-accent-1), var(--banner-accent-2));
  opacity: 0.12;
  border-radius: 60px;
  transform: rotate(30deg);
  z-index: 1;
  pointer-events: none;
}

/* ── Close button ────────────────────────────────────────────── */
#banner-close-btn {
  position: absolute;
  top: 12px;
  right: 12px;
  z-index: 100;
  width: 36px;
  height: 36px;
  min-width: 36px;
  min-height: 36px;
  max-width: 36px;
  max-height: 36px;
  border-radius: 50%;
  border: 2px solid rgba(255, 60, 60, 0.85);
  background: rgba(200, 20, 20, 0.75);
  color: #fff;
  font-size: 16px;
  font-weight: 900;
  line-height: 36px;
  padding: 0;
  margin: 0;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-sizing: border-box;
  transition: background 0.2s, border-color 0.2s, transform 0.18s, box-shadow 0.2s;
  box-shadow: 0 0 10px rgba(255, 0, 0, 0.5), 0 2px 6px rgba(0,0,0,0.5);
}

#banner-close-btn:hover {
  background: rgba(255, 20, 20, 0.95);
  border-color: #ff4444;
  transform: scale(1.15) rotate(90deg);
  box-shadow: 0 0 18px rgba(255, 0, 0, 0.75), 0 2px 8px rgba(0,0,0,0.6);
}

#banner-close-btn svg {
  width: 14px;
  height: 14px;
  stroke: #ffffff;
  stroke-width: 3;
  stroke-linecap: round;
  filter: drop-shadow(0 0 2px rgba(255,255,255,0.6));
}

/* ── Content layout ──────────────────────────────────────────── */
#banner-content {
  position: relative;
  z-index: 10;
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: clamp(6px, 2%, 18px);
  padding: clamp(14px, 4%, 40px);
  box-sizing: border-box;
  text-align: center;
}

/* ── Event label pill ────────────────────────────────────────── */
#banner-event-label {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  background: linear-gradient(90deg, var(--banner-accent-1), var(--banner-accent-2));
  color: #fff;
  font-family: var(--banner-font-title);
  font-size: clamp(9px, 1.3vw, 13px);
  font-weight: 900;
  letter-spacing: 3px;
  text-transform: uppercase;
  padding: 5px 16px;
  border-radius: 999px;
  box-shadow: 0 0 18px rgba(255,107,0,0.5);
  animation: pillPop 0.5s cubic-bezier(0.34, 1.56, 0.64, 1) 0.4s both;
}

@keyframes pillPop {
  from { transform: scale(0.5); opacity: 0; }
  to   { transform: scale(1);   opacity: 1; }
}

.banner-label-icon {
  font-size: 1.2em;
  animation: iconWiggle 2s ease-in-out infinite;
}

@keyframes iconWiggle {
  0%, 100% { transform: rotate(-10deg); }
  50%       { transform: rotate(10deg);  }
}

/* ── Main title ──────────────────────────────────────────────── */
#banner-title {
  font-family: var(--banner-font-title);
  font-size: clamp(22px, 5.5vw, 58px);
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: clamp(2px, 0.5vw, 6px);
  line-height: 1.05;
  background: linear-gradient(
    90deg,
    var(--banner-accent-3) 0%,
    #fff 35%,
    var(--banner-accent-3) 65%,
    #fff 100%
  );
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation:
    titleSlideUp 0.55s cubic-bezier(0.22, 1, 0.36, 1) 0.25s both,
    titleShimmer 3s linear 1s infinite;
  text-shadow: none;
  filter: drop-shadow(0 0 18px rgba(255,204,0,0.45));
}

@keyframes titleSlideUp {
  from { transform: translateY(22px); opacity: 0; }
  to   { transform: translateY(0);    opacity: 1; }
}

@keyframes titleShimmer {
  to { background-position: 200% center; }
}

/* ── Subtitle ────────────────────────────────────────────────── */
#banner-subtitle {
  font-family: var(--banner-font-body);
  font-size: clamp(10px, 1.6vw, 17px);
  color: rgba(255,255,255,0.75);
  letter-spacing: clamp(1px, 0.3vw, 3px);
  text-transform: uppercase;
  animation: titleSlideUp 0.55s cubic-bezier(0.22, 1, 0.36, 1) 0.35s both;
}

/* ── Deals row ───────────────────────────────────────────────── */
#banner-deals {
  display: flex;
  gap: clamp(8px, 2vw, 20px);
  flex-wrap: wrap;
  justify-content: center;
  animation: titleSlideUp 0.55s cubic-bezier(0.22, 1, 0.36, 1) 0.45s both;
}

.banner-deal-chip {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  background: rgba(255,255,255,0.06);
  border: 1.5px solid rgba(255,255,255,0.12);
  border-radius: 12px;
  padding: clamp(6px, 1.5vw, 14px) clamp(10px, 2vw, 22px);
  backdrop-filter: blur(6px);
  transition: transform 0.2s, border-color 0.2s, box-shadow 0.2s;
  cursor: default;
}

.banner-deal-chip:hover {
  transform: translateY(-3px) scale(1.04);
  border-color: var(--banner-accent-3);
  box-shadow: 0 0 16px rgba(255,204,0,0.25);
}

.chip-icon {
  font-size: clamp(16px, 3vw, 28px);
}

.chip-discount {
  font-family: var(--banner-font-title);
  font-size: clamp(14px, 2.8vw, 28px);
  font-weight: 900;
  background: linear-gradient(90deg, var(--banner-accent-1), var(--banner-accent-2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
}

.chip-label {
  font-family: var(--banner-font-body);
  font-size: clamp(7px, 1.1vw, 11px);
  color: rgba(255,255,255,0.6);
  letter-spacing: 1.5px;
  text-transform: uppercase;
}

/* ── Divider ─────────────────────────────────────────────────── */
#banner-divider {
  width: clamp(60px, 15%, 120px);
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--banner-accent-4), transparent);
  animation: titleSlideUp 0.55s cubic-bezier(0.22, 1, 0.36, 1) 0.5s both;
}

/* ── CTA button ──────────────────────────────────────────────── */
#banner-cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: linear-gradient(90deg, var(--banner-accent-1), var(--banner-accent-2));
  color: #fff;
  font-family: var(--banner-font-title);
  font-size: clamp(10px, 1.5vw, 15px);
  font-weight: 900;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  border: none;
  border-radius: 999px;
  padding: clamp(8px, 1.5vw, 13px) clamp(20px, 4vw, 40px);
  cursor: pointer;
  box-shadow: 0 0 24px rgba(255,107,0,0.45), 0 4px 16px rgba(0,0,0,0.4);
  transition: transform 0.18s, box-shadow 0.18s;
  animation:
    pillPop 0.5s cubic-bezier(0.34, 1.56, 0.64, 1) 0.6s both,
    ctaPulse 2.5s ease-in-out 1.5s infinite;
  position: relative;
  overflow: hidden;
}

#banner-cta-btn::before {
  content: '';
  position: absolute;
  top: 0; left: -100%;
  width: 60%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
  animation: ctaSheen 3s ease-in-out 2s infinite;
}

@keyframes ctaSheen {
  0%   { left: -100%; }
  40%  { left: 120%;  }
  100% { left: 120%;  }
}

@keyframes ctaPulse {
  0%, 100% { box-shadow: 0 0 24px rgba(255,107,0,0.45), 0 4px 16px rgba(0,0,0,0.4); }
  50%       { box-shadow: 0 0 38px rgba(255,107,0,0.75), 0 4px 24px rgba(0,0,0,0.5); }
}

#banner-cta-btn:hover {
  transform: scale(1.06);
  box-shadow: 0 0 44px rgba(255,107,0,0.7), 0 6px 20px rgba(0,0,0,0.5);
}

/* ── Timer strip ─────────────────────────────────────────────── */
#banner-timer-strip {
  display: flex;
  align-items: center;
  gap: clamp(5px, 1vw, 10px);
  font-family: var(--banner-font-body);
  font-size: clamp(8px, 1.1vw, 12px);
  color: rgba(255,255,255,0.5);
  letter-spacing: 2px;
  text-transform: uppercase;
  animation: titleSlideUp 0.55s cubic-bezier(0.22, 1, 0.36, 1) 0.65s both;
}

#banner-timer-strip .timer-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--banner-accent-2);
  box-shadow: 0 0 6px var(--banner-accent-2);
  animation: timerDotBlink 1s step-end infinite;
}

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

#banner-countdown {
  font-family: var(--banner-font-title);
  font-size: clamp(10px, 1.4vw, 14px);
  font-weight: 900;
  color: var(--banner-accent-3);
  letter-spacing: 1px;
  min-width: 70px;
}

/* ── Bottom glow bar ─────────────────────────────────────────── */
#banner-bottom-glow {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg,
    var(--banner-accent-1),
    var(--banner-accent-3),
    var(--banner-accent-2),
    var(--banner-accent-4),
    var(--banner-accent-1)
  );
  background-size: 300% 100%;
  animation: rainbowSlide 3s linear infinite;
  z-index: 10;
}

@keyframes rainbowSlide {
  to { background-position: 300% center; }
}

/* ── Reduced motion support ──────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  #event-banner-overlay,
  #event-banner-card,
  #banner-bg-gradient::after,
  #banner-title,
  #banner-cta-btn,
  #banner-cta-btn::before,
  .banner-star,
  .banner-label-icon {
    animation: none !important;
    opacity: 1 !important;
    transform: none !important;
  }
}

/* ── Mobile tweak ────────────────────────────────────────────── */
@media (max-width: 500px) {
  #banner-deals { gap: 6px; }
  .banner-deal-chip { padding: 6px 10px; }
}

/* ── Very short viewports (landscape phones) ──────────────────── */
@media (max-height: 480px) {
  #banner-content { gap: clamp(4px, 1.5%, 10px); padding: 10px clamp(14px,4%,40px); }
  #banner-deals { gap: 5px; }
  .banner-deal-chip { padding: 4px 8px; }
}