/* CSS Custom Properties for theming */
:root {
  --banner-bg-mobile: #ecf6ff;
  --banner-bg-desktop: #ecf6ff;
  --banner-text-mobile: #333;
  --banner-text-desktop: #333;
  --banner-shadow: 0 -2px 10px rgba(0, 0, 0, 0.1);
  --banner-border-radius: 12px;
  --animation-duration: 0.3s;
  --animation-easing: cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --step-gap: 8px;
  --instruction-text-color: #666;
}

/* Banner - Mobile First Styles */
.banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 9999;
  background-color: var(--banner-bg-mobile);
  border-radius: var(--banner-border-radius) var(--banner-border-radius) 0 0;
  box-shadow: var(--banner-shadow);
  transform: translateY(100px);
  opacity: 0;
  transition: transform var(--animation-duration) var(--animation-easing),
              opacity var(--animation-duration) var(--animation-easing);
}

/* Ensure no body padding on mobile (banner should overlay, not push content) */
@media (max-width: 1023px) {
  body {
    padding-top: 0 !important;
  }
}

/* Banner visible state */
.banner.visible {
  transform: translateY(0);
  opacity: 1;
}

/* Banner hidden state */
.banner.hidden {
  transform: translateY(100px);
  opacity: 0;
  pointer-events: none;
}

.banner__container {
  display: flex;
  align-items: flex-start;
  padding: 16px 20px;
  gap: 12px;
}

.banner__content {
  flex: 1;
}

.banner__text {
  color: var(--banner-text-mobile);
  font-size: 14px;
  font-weight: 500;
  line-height: 1.4;
  margin: 0;
}

.banner__close {
  background: none;
  border: none;
  padding: 4px;
  cursor: pointer;
  color: var(--banner-text-mobile);
  border-radius: 4px;
  transition: background-color 0.2s ease, transform 0.1s ease;
  flex-shrink: 0;
  margin-top: -2px; /* Align with text */
}

.banner__close:hover {
  background-color: rgba(0, 0, 0, 0.1);
}

.banner__close:active {
  transform: scale(0.95);
}

.banner__close:focus {
  outline: 2px solid var(--banner-text-mobile);
  outline-offset: 2px;
}

.banner__close svg {
  display: block;
  width: 20px;
  height: 20px;
}

/* Tablet styles */
@media (min-width: 768px) {
  .banner__text {
    font-size: 15px;
  }

  .banner__container {
    padding: 18px 24px;
  }
}

/* Desktop styles */
@media (min-width: 1024px) {
  .banner {
    position: fixed;
    top: 0;
    bottom: auto;
    left: 0;
    right: 0;
    background-color: var(--banner-bg-desktop);
    border-radius: 0;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    transform: translateY(-100%);
  }

  .banner.visible {
    transform: translateY(0);
  }

  .banner.hidden {
    transform: translateY(-100%);
  }

  /* Push content down when banner is visible on desktop */
  #header.banner-visible,
  .demo-content.banner-visible,
  main.banner-visible,
  .content.banner-visible {
    transition: padding-top var(--animation-duration) var(--animation-easing);
  }

  .banner__container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 14px 24px;
    align-items: center;
  }

  .banner__text {
    color: var(--banner-text-desktop);
    font-size: 16px;
    font-weight: 400;
    line-height: 1.5;
  }

  .banner__close {
    color: var(--banner-text-desktop);
    margin-top: 0;
    padding: 8px;
  }

  .banner__close:hover {
    background-color: rgba(255, 255, 255, 0.1);
  }

  .banner__close:focus {
    outline: 2px solid rgba(255, 255, 255, 0.8);
  }

  .banner__close svg {
    width: 18px;
    height: 18px;
  }
}

/* Large desktop optimizations */
@media (min-width: 1440px) {
  .banner__container {
    padding: 16px 32px;
  }

  .banner__text {
    font-size: 17px;
  }
}

/* Animation for smoother interactions */
@media (prefers-reduced-motion: reduce) {
  .banner,
  .banner__close {
    transition: none;
  }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
  .banner {
    border: 2px solid var(--banner-text-mobile);
  }

  @media (min-width: 1024px) {
    .banner {
      border-color: var(--banner-text-desktop);
    }
  }
}

/* Focus management for better accessibility */
.banner:focus-within {
  outline: 2px solid currentColor;
  outline-offset: 2px;
}

/* Mobile step-by-step instructions styling */
.banner__steps {
  margin-top: 0px;
}

.banner__step {
  display: flex;
  align-items: center;
  gap: var(--step-gap);
  margin-bottom: 8px;
  font-size: 13px;
  color: var(--instruction-text-color);
  line-height: 1.3;
}

.banner__step:last-child {
  margin-bottom: 0;
}

.banner__step-number,
.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  background-color: var(--banner-text-mobile);
  color: white;
  border-radius: 50%;
  font-size: 11px;
  font-weight: 600;
  flex-shrink: 0;
}

.banner__step-icon,
.step-icon {
  flex-shrink: 0;
  opacity: 0.8;
}

.banner__step-text,
.step-text {
  flex: 1;
  font-weight: 500;
}

.banner__step-text strong,
.step-text strong {
  color: var(--banner-text-mobile);
  font-weight: 600;
}

.banner__subtext {
  margin-top: 0;
  margin-bottom: 10px;
}

.banner__text--subtext {
  margin-top: 10px;
  margin-bottom: 0;
}

/* Desktop step styling adjustments */
@media (min-width: 1024px) {
  .banner__steps {
    margin-top: 8px;
  }

  .banner__step {
    font-size: 14px;
    margin-bottom: 6px;
    color: rgba(255, 255, 255, 0.9);
  }

  .banner__step-number,
  .step-number {
    background-color: rgba(255, 255, 255, 0.9);
    color: var(--banner-bg-desktop);
  }

  .banner__step-text strong,
  .step-text strong {
    color: white;
    font-weight: 600;
  }
}

/* Tablet step styling */
@media (min-width: 768px) and (max-width: 1023px) {
  .banner__step {
    font-size: 14px;
  }

  .banner__step-number,
  .step-number {
    width: 20px;
    height: 20px;
    font-size: 12px;
  }
}

/* Print styles - hide banner when printing */
@media print {
  .banner {
    display: none !important;
  }
}