:root {
  --bg-gradient-1: #2a1a5e;
  --bg-gradient-2: #8b4789;
  --bg-gradient-3: #f4a261;
  --container-bg: rgba(42, 26, 94, 0.7);
  --container-border: rgba(244, 162, 97, 0.8);
  --text-color: #ffe8d6;
  --link-color: #f4a261;
  --link-bg: rgba(139, 71, 137, 0.3);
  --link-hover-bg: rgba(244, 162, 97, 0.3);
  --link-hover-border: rgba(244, 162, 97, 0.8);
  --subtitle-color: #dda15e;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  background: linear-gradient(
      var(--bg-gradient-1),
      var(--bg-gradient-2),
      var(--bg-gradient-3)
    )
    no-repeat fixed;
  color: var(--text-color);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  margin: 0;
  padding: 16px;
  min-height: 100vh;
  transition: all 0.5s ease;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

body::before {
  content: "";
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
  transition: 0.5s ease;
  background: radial-gradient(
    circle at 20% 50%,
    rgba(255, 255, 255, 0.08) 0%,
    transparent 50%
  );
}

.container {
  background: var(--container-bg);
  border-radius: 20px;
  padding: 24px;
  border: 1px solid var(--container-border);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  width: 100%;
  max-width: 600px;
  margin: auto;
  box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
  transition: all 0.3s ease;
  position: relative;
  z-index: 1;
}

h1 {
  margin: 0 0 16px 0;
  font-size: clamp(1.5rem, 5vw, 2rem);
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.7);
  color: var(--text-color);
  transition: color 0.3s ease;
  display: flex;
  align-items: center;
  gap: 12px;
}

.icon {
  width: 32px;
  height: 32px;
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.icon img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

p {
  color: var(--text-color);
  transition: color 0.3s ease;
  margin: 16px 0;
  font-size: 1rem;
}

ul {
  list-style: none;
  padding: 0;
  margin: 20px 0 0 0;
}

li {
  margin-bottom: 12px;
}

li:last-child {
  margin-bottom: 0;
}

li a {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 20px;
  border-radius: 12px;
  color: var(--text-color);
  text-decoration: none;
  transition: all 0.2s ease;
  background-color: var(--link-bg);
  border: 1px solid transparent;
  min-height: 56px;
  gap: 12px;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
  position: relative;
  overflow: hidden;
}

li a::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(244, 162, 97, 0.1),
    transparent
  );
  transition: left 0.5s ease;
}

li a:active {
  transform: scale(0.98);
  background-color: var(--link-hover-bg);
}

li a strong {
  font-weight: 600;
  color: var(--link-color);
  transition: color 0.3s ease;
  font-size: 1.05rem;
}

li a span {
  font-weight: 300;
  color: var(--subtitle-color);
  transition: color 0.3s ease;
  font-size: 0.9rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

br {
  display: block;
  margin: 16px 0;
  content: "";
}

/* Back to top button */
.back-to-top {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--link-bg);
  border: 1px solid var(--container-border);
  color: var(--link-color);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
  z-index: 1000;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 4px 16px 0 rgba(0, 0, 0, 0.3);
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
}

.back-to-top:hover {
  background: var(--link-hover-bg);
  border-color: var(--link-hover-border);
  transform: translateY(-2px);
}

.back-to-top:active {
  transform: translateY(0);
}

/* Animations */
@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

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

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in {
  animation: fadeIn 0.6s ease-out forwards;
}

.slide-down {
  animation: slideDown 0.6s ease-out forwards;
}

.slide-up {
  animation: slideUp 0.6s ease-out forwards;
  opacity: 0;
}

@media (hover: hover) {
  li a:hover {
    background-color: var(--link-hover-bg);
    border-color: var(--link-hover-border);
    transform: scale(1.02);
  }
  
  li a:hover::before {
    left: 100%;
  }
}

@media (min-width: 768px) {
  body {
    padding: 24px;
  }
  
  .container {
    padding: 32px;
    border-radius: 20px;
  }
  
  h1 {
    margin-bottom: 24px;
  }
  
  li {
    margin-bottom: 14px;
  }
}

@media (min-width: 1024px) {
  .container {
    max-width: 700px;
  }
}

@media (max-width: 400px) {
  .container {
    padding: 20px;
    border-radius: 16px;
  }
  
  li a {
    padding: 16px 18px;
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
  }
  
  li a span {
    font-size: 0.85rem;
  }
  
  .back-to-top {
    bottom: 16px;
    right: 16px;
    width: 44px;
    height: 44px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  
  * {
    animation: none !important;
    transition: none !important;
  }
  
  .fade-in,
  .slide-down,
  .slide-up {
    opacity: 1 !important;
    transform: none !important;
  }
}