/* Global style */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html, body {
  height: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Inter", ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, "Helvetica Neue", Arial, "Noto Sans", "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
  color: #eaf0f3;
  background: #0b1720;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Fullscreen slideshow background */
#slideshow {
  position: fixed;
  inset: 0;
  z-index: -2;
  overflow: hidden;
  background: #0b1720;
}

#slideshow .slide {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0;
  transform: scale(1.02);
  animation: slideFade 18s infinite;
}

/* Staggered start times for each image */
#slideshow .slide:nth-child(1) { animation-delay: 0s; }
#slideshow .slide:nth-child(2) { animation-delay: 6s; }
#slideshow .slide:nth-child(3) { animation-delay: 12s; }

/* Dark overlay for readability */
#slideshow .overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(9,18,26,0.85), rgba(9,18,26,0.55) 40%, rgba(9,18,26,0.35));
  z-index: 2;
}

@keyframes slideFade {
  0%   { opacity: 0; transform: scale(1.04); }
  8%   { opacity: 1; transform: scale(1.02); }
  33%  { opacity: 1; transform: scale(1.01); }
  41%  { opacity: 0; transform: scale(1.0); }
  100% { opacity: 0; transform: scale(1.0); }
}

/* Foreground content */
.container {
  min-height: 100vh;
  display: grid;
  place-content: center;
  text-align: center;
  padding: 24px;
  position: relative;
  z-index: 0;
}

.brand {
  margin: 0 0 8px;
  font-size: clamp(40px, 8vw, 96px);
  font-weight: 800;
  letter-spacing: 0.02em;
  text-shadow: 0 2px 16px rgba(0,0,0,0.35);
}

.tagline {
  margin: 0;
  font-size: clamp(16px, 2.5vw, 22px);
  color: #cfe0e7;
}

.coming-soon {
  margin: 20px 0 28px;
  font-size: clamp(18px, 3vw, 28px);
  font-weight: 600;
  color: #a9d3e0;
}

.cta {
  display: inline-flex;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: center;
}

.button {
  appearance: none;
  border: 0;
  padding: 12px 20px;
  border-radius: 999px;
  background: #17a2c4;
  color: #06141a;
  font-weight: 700;
  text-decoration: none;
  box-shadow: 0 8px 20px rgba(23,162,196,0.35);
  transition: transform .15s ease, box-shadow .15s ease, background .2s ease;
}
.button:hover {
  transform: translateY(-1px);
  box-shadow: 0 12px 28px rgba(23,162,196,0.45);
}
.button:active {
  transform: translateY(0);
}
.button.ghost {
  background: transparent;
  color: #eaf0f3;
  border: 2px solid rgba(234,240,243,0.5);
  box-shadow: none;
}
.button.ghost:hover {
  border-color: #eaf0f3;
}

.footer {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 10px 14px;
  color: #b6c7cf;
  font-size: 12px;
  background: linear-gradient(180deg, rgba(9,18,26,0), rgba(9,18,26,0.45));
}

/* Learn More panel */
.panel {
  position: relative;
  z-index: 0;
  padding: 48px 20px 96px;
}
.panel-inner {
  max-width: 920px;
  margin: 0 auto;
  background: linear-gradient(180deg, rgba(18,52,78,0.92), rgba(9,35,55,0.92));
  border: 1px solid rgba(23,162,196,0.25);
  box-shadow: 0 18px 50px rgba(0,0,0,0.35);
  backdrop-filter: blur(3px);
  border-radius: 18px;
  padding: 28px 24px;
  color: #e8eef2;
}
.panel-inner h2 {
  margin: 0 0 10px;
  font-size: clamp(22px, 4vw, 34px);
}
.panel-inner p {
  margin: 10px 0;
  color: #cfe0e7;
  line-height: 1.7;
}
.panel-inner strong {
  color: #ffffff;
}

/* Responsive tweaks */
@media (max-width: 480px) {
  .cta { gap: 10px; }
  .button { width: 100%; max-width: 280px; }
}

/* Toast */
.toast {
  position: fixed;
  left: 50%;
  bottom: 64px;
  transform: translateX(-50%);
  padding: 10px 16px;
  border-radius: 999px;
  background: rgba(6,20,26,0.9);
  color: #eaf0f3;
  font-weight: 600;
  box-shadow: 0 10px 30px rgba(0,0,0,0.35);
  opacity: 0;
  pointer-events: none;
  transition: opacity .25s ease, transform .25s ease;
}
.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(-6px);
}