* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --bg-top: #0f1a24;
  --bg-bottom: #10141d;
  --accent: #22d3ee;
  --text: #f1f5f9;
  --muted: #94a3b8;
  --border: rgba(255, 255, 255, 0.12);
}

body {
  font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
  min-height: 100vh;
  display: grid;
  place-items: center;
  background: radial-gradient(1000px 600px at 50% 0%, #1b2c3d, var(--bg-top)) ,
              linear-gradient(180deg, var(--bg-top), var(--bg-bottom));
  color: var(--text);
  padding: 2rem 1.5rem;
}

.app {
  width: 100%;
  max-width: 860px;
  text-align: center;
}

.title {
  font-size: clamp(1.8rem, 6vw, 2.4rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 1.8rem;
}

.slider {
  position: relative;
}

.slider-viewport {
  position: relative;
  overflow: hidden;
  border-radius: 1.25rem;
  border: 1px solid var(--border);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.45);
  background: #0b1220;
}

.slider-track {
  display: flex;
  transition: transform 0.55s cubic-bezier(0.25, 0.8, 0.35, 1);
  will-change: transform;
}

.slide {
  position: relative;
  flex: 0 0 100%;
  aspect-ratio: 16 / 10;
  min-height: 280px;
}

.slide img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.caption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 1rem 1.2rem;
  text-align: left;
  font-weight: 700;
  font-size: 1rem;
  color: #fff;
  background: linear-gradient(transparent, rgba(0, 0, 0, 0.75));
}

.arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border: none;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.14);
  color: #fff;
  cursor: pointer;
  backdrop-filter: blur(6px);
  transition: background 0.2s, transform 0.2s;
  z-index: 2;
}

.arrow svg {
  width: 22px;
  height: 22px;
}

.arrow:hover {
  background: rgba(255, 255, 255, 0.28);
}

.arrow:active {
  transform: translateY(-50%) scale(0.92);
}

.arrow-prev {
  left: 14px;
}

.arrow-next {
  right: 14px;
}

.dots {
  display: flex;
  justify-content: center;
  gap: 0.55rem;
  margin-top: 1.2rem;
}

.dot {
  width: 10px;
  height: 10px;
  padding: 0;
  border: none;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.25);
  cursor: pointer;
  transition: width 0.25s, background 0.25s;
}

.dot.active {
  width: 26px;
  background: var(--accent);
}

@media (max-width: 480px) {
  .arrow {
    width: 36px;
    height: 36px;
  }
  .arrow-prev {
    left: 8px;
  }
  .arrow-next {
    right: 8px;
  }
}