:root {
  --bg-color: #030303;
  --text-primary: #FFFFFF;
  --text-muted: #A1A1AA;
  --neon-red: #ff1111;
  --ease-out: cubic-bezier(0.23, 1, 0.32, 1);
}

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

body {
  background-color: var(--bg-color);
  color: var(--text-primary);
  font-family: 'Inter', -apple-system, sans-serif;
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  overflow: hidden;
  -webkit-font-smoothing: antialiased;
}

/* Enter Overlay */
#enter-overlay {
  position: fixed;
  inset: 0;
  background: #000;
  z-index: 9999;
  display: flex;
  justify-content: center;
  align-items: center;
  cursor: pointer;
  transition: opacity 800ms var(--ease-out), visibility 800ms var(--ease-out);
}

#enter-overlay.fade-out {
  opacity: 0;
  visibility: hidden;
  cursor: default;
  pointer-events: none;
}

.enter-text {
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--neon-red);
  text-transform: uppercase;
  animation: pulseText 2s infinite alternate var(--ease-out);
}

@keyframes pulseText {
  from { opacity: 0.4; text-shadow: 0 0 5px var(--neon-red); }
  to { opacity: 1; text-shadow: 0 0 20px var(--neon-red); }
}

/* Manga Background Elements */
#rain-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: -1;
  pointer-events: none;
  opacity: 0.6;
  transform: translateZ(0);
  will-change: transform;
}

.manga-bg {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-image: url('../img/berserk.jpg');
  background-size: cover;
  background-position: center;
  filter: blur(4px) brightness(0.35);
  z-index: -2;
  transform: translateZ(0);
  will-change: filter, transform;
}

.manga-vignette {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: radial-gradient(circle, transparent 20%, #000 100%);
  z-index: -1;
}

/* Now Playing */
.now-playing {
  position: fixed;
  bottom: 2rem;
  left: 2rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  background: rgba(10, 0, 0, 0.6);
  backdrop-filter: blur(8px);
  padding: 0.5rem 1rem;
  border-radius: 8px;
  border: 1px solid rgba(255, 17, 17, 0.2);
  z-index: 50;
  opacity: 0;
  transform: translateY(10px);
  pointer-events: none;
  transition: opacity 400ms var(--ease-out), transform 400ms var(--ease-out);
}

.now-playing.visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.now-playing .music-note {
  color: var(--neon-red);
  animation: floatNote 2s infinite ease-in-out alternate;
}

@keyframes floatNote {
  0% { transform: translateY(0); }
  100% { transform: translateY(-3px); }
}

.now-playing-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.now-playing-text .label {
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--neon-red);
  opacity: 0.8;
}

.now-playing-text .song-title {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 6px;
}

.now-playing-text .repeat-icon {
  color: var(--neon-red);
  opacity: 0.8;
  margin-top: 1px;
}

/* Audio Control Container */
.audio-controls {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 50;
  width: 44px;
  height: 44px;
}

.volume-slider-wrapper {
  position: absolute;
  bottom: calc(100% - 15px);
  left: 50%;
  transform: translateX(-50%) translateY(10px);
  height: 150px;
  width: 60px;
  display: flex;
  flex-direction: column;
  align-items: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 300ms var(--ease-out), transform 300ms var(--ease-out);
}

.audio-controls.is-playing:hover .volume-slider-wrapper {
  opacity: 1;
  pointer-events: auto;
  transform: translateX(-50%) translateY(0);
}

.volume-percent {
  color: var(--text-primary);
  font-size: 0.75rem;
  font-family: 'Inter', sans-serif;
  font-weight: 700;
  position: absolute;
  bottom: 115px;
  left: 50%;
  transform: translateX(-50%);
  text-shadow: 0 0 5px var(--neon-red);
}

/* Volume Slider */
input[type=range] {
  -webkit-appearance: none;
  appearance: none;
  width: 80px;
  height: 14px;
  background: transparent;
  outline: none;
  cursor: pointer;
  position: absolute;
  bottom: 60px;
  left: 50%;
  transform: translateX(-50%) rotate(-90deg);
  transform-origin: center;
}

.audio-controls.is-playing:hover input[type=range]:hover {
  opacity: 1;
}

input[type=range]::-webkit-slider-runnable-track {
  width: 100%;
  height: 4px;
  background: rgba(255, 17, 17, 0.3);
  border-radius: 2px;
}

input[type=range]::-webkit-slider-thumb {
  -webkit-appearance: none;
  height: 14px;
  width: 14px;
  border-radius: 50%;
  background: var(--neon-red);
  box-shadow: 0 0 8px var(--neon-red);
  margin-top: -5px;
}

input[type=range]::-moz-range-track {
  width: 100%;
  height: 4px;
  background: rgba(255, 17, 17, 0.3);
  border-radius: 2px;
}

input[type=range]::-moz-range-thumb {
  height: 14px;
  width: 14px;
  border-radius: 50%;
  background: var(--neon-red);
  box-shadow: 0 0 8px var(--neon-red);
  border: none;
}

/* Audio Toggle Button */
.audio-toggle {
  background: rgba(255, 17, 17, 0.1);
  border: 1px solid rgba(255, 17, 17, 0.3);
  color: var(--neon-red);
  width: 44px;
  height: 44px;
  border-radius: 50%;
  display: flex;
  justify-content: center;
  align-items: center;
  cursor: pointer;
  position: relative;
  z-index: 2;
  transition: transform 160ms var(--ease-out), box-shadow 200ms var(--ease-out), background 200ms var(--ease-out);
}

.audio-controls:hover .audio-toggle {
  background: rgba(255, 17, 17, 0.2);
  box-shadow: 0 0 16px rgba(255, 17, 17, 0.3);
}

.audio-toggle:hover {
  transform: scale(1.05);
}

.audio-toggle:active {
  transform: scale(0.95);
}

.audio-icon {
  position: absolute;
  transition: opacity 200ms var(--ease-out), transform 200ms var(--ease-out);
}

.hidden {
  opacity: 0;
  transform: scale(0.8);
  pointer-events: none;
}

/* Profile Layout */
.profile-container {
  width: 100%;
  max-width: 440px;
  padding: 2rem;
  display: flex;
  flex-direction: column;
  gap: 3rem;
  position: relative;
}

/* Hide content initially to wait for enter */
body:not(.loaded) .profile-header,
body:not(.loaded) .links-container .link-item {
  opacity: 0;
  animation: none;
}

/* Brand of Sacrifice */
.brand-of-sacrifice {
  position: fixed;
  top: 1.5rem;
  right: 1.5rem;
  width: 80px;
  height: 100px;
  z-index: 100; /* Ensure it is above everything */
  transition: transform 300ms var(--ease-out);
}

/* Base styles for both SVGs */
.brand-of-sacrifice svg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none; /* Let the div handle the hit box */
}

/* Slow, dim pulse runs constantly */
.brand-slow {
  opacity: 0.3;
  filter: drop-shadow(0 0 10px var(--neon-red));
  animation: glowPulse 4s infinite alternate var(--ease-out);
  will-change: opacity;
  transform: translateZ(0);
}

/* Fast, bright bleed is hidden by default and transitions out smoothly */
.brand-fast {
  opacity: 0;
  animation: bleedFast 0.3s infinite alternate ease-in-out;
  transition: opacity 1.5s ease-out;
  will-change: opacity;
  transform: translateZ(0);
}

/* Invisible solid background to guarantee a 100% solid hit area */
.brand-of-sacrifice::before {
  content: '';
  position: absolute;
  inset: -10px; /* Generous hit area */
  background: rgba(0, 0, 0, 0.001); 
  border-radius: 50%;
}

.brand-of-sacrifice:hover {
  transform: scale(1.15) rotate(5deg);
}

/* On hover, fade the fast bleed in quickly */
.brand-of-sacrifice:hover .brand-fast {
  opacity: 1;
  transition: opacity 0.2s ease-out;
}

@keyframes glowPulse {
  from { opacity: 0.1; filter: drop-shadow(0 0 5px var(--neon-red)); }
  to { opacity: 0.3; filter: drop-shadow(0 0 20px var(--neon-red)); }
}

@keyframes bleedFast {
  from { filter: drop-shadow(0 0 20px var(--neon-red)) brightness(1.2); }
  to { filter: drop-shadow(0 0 50px var(--neon-red)) brightness(2); }
}

/* Header & Avatar */
.profile-header {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  position: relative;
  transform: translateY(16px) scale(0.95);
}

body.loaded .profile-header {
  animation: fadeIn 600ms var(--ease-out) forwards;
}

.avatar-wrapper {
  position: relative;
  width: 180px;
  height: 180px;
  margin-bottom: 1rem;
}

.neon-wire {
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%);
  width: 3px;
  height: 100vh;
  background: var(--neon-red);
  box-shadow: 0 0 10px var(--neon-red), 0 0 20px var(--neon-red);
  z-index: 1;
  opacity: 0.6;
  border-bottom-left-radius: 2px;
  border-bottom-right-radius: 2px;
  transition: opacity 400ms var(--ease-out), box-shadow 400ms var(--ease-out);
}

.avatar {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  object-fit: cover;
  object-position: center calc(50% - 5px);
  position: relative;
  z-index: 2;
  border: 3px solid rgba(255, 17, 17, 0.3);
  transition: transform 400ms var(--ease-out), border-color 400ms var(--ease-out), box-shadow 400ms var(--ease-out);
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  transform: translateZ(0);
  will-change: transform;
}

.avatar-glow {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 100%;
  height: 100%;
  transform: translate(-50%, -50%) translateZ(0);
  background: var(--neon-red);
  filter: blur(48px);
  opacity: 0.5;
  z-index: 1;
  border-radius: 50%;
  transition: opacity 400ms var(--ease-out);
  will-change: transform, opacity;
}

.avatar-wrapper:hover .avatar {
  border-color: rgba(255, 17, 17, 0.8);
  box-shadow: 0 0 40px rgba(255, 17, 17, 0.6);
}

.avatar-wrapper:hover .neon-wire {
  opacity: 1;
  box-shadow: 0 0 15px var(--neon-red), 0 0 30px var(--neon-red);
}

.avatar-wrapper:hover .avatar-glow {
  opacity: 0.8;
  animation: heartbeatGlow 1.2s infinite alternate cubic-bezier(0.25, 1, 0.5, 1);
}

@keyframes heartbeatGlow {
  0% { transform: translate(-50%, -50%) scale(1); opacity: 0.6; }
  10% { transform: translate(-50%, -50%) scale(1.1); opacity: 0.8; }
  20% { transform: translate(-50%, -50%) scale(1); opacity: 0.6; }
  30% { transform: translate(-50%, -50%) scale(1.15); opacity: 0.9; }
  100% { transform: translate(-50%, -50%) scale(1); opacity: 0.6; }
}

.username {
  font-family: 'Dancing Script', cursive;
  font-size: 4.5rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-shadow: 0 0 24px rgba(255, 17, 17, 0.4);
  z-index: 2;
  margin-top: -0.5rem;
}

/* Links (Icon Only, Row Layout) */
.links-container {
  display: flex;
  flex-direction: row;
  justify-content: center;
  flex-wrap: wrap;
  gap: 1.5rem;
  width: 100%;
  z-index: 2;
}

.link-item {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  width: 64px;
  height: 64px;
  color: var(--text-primary);
  text-decoration: none;
  background: rgba(20, 0, 0, 0.6);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 17, 17, 0.2);
  border-radius: 50%;
  outline: none;
  overflow: hidden;
  transition: transform 160ms var(--ease-out),
              border-color 200ms var(--ease-out),
              box-shadow 200ms var(--ease-out);
  transform: translateY(16px) scale(0.95);
}

body.loaded .link-item {
  animation: fadeIn 600ms var(--ease-out) forwards;
}

body.loaded .link-item:nth-child(1) { animation-delay: 100ms; }
body.loaded .link-item:nth-child(2) { animation-delay: 160ms; }
body.loaded .link-item:nth-child(3) { animation-delay: 220ms; }

.link-icon {
  position: relative;
  z-index: 2;
  color: var(--text-primary);
  transition: filter 200ms ease;
}

.link-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle, rgba(255, 17, 17, 0.2) 0%, rgba(255, 17, 17, 0) 70%);
  opacity: 0;
  z-index: 1;
  transition: opacity 200ms var(--ease-out);
}

@media (hover: hover) and (pointer: fine) {
  .link-item:hover {
    border-color: rgba(255, 17, 17, 0.7);
    box-shadow: 0 0 32px rgba(255, 17, 17, 0.25);
    transform: translateY(-2px);
  }
  .link-item:hover .link-bg { opacity: 1; }
}

.link-item:active {
  transform: scale(0.97);
  box-shadow: 0 0 12px rgba(255, 17, 17, 0.4);
}

.link-item:active .link-icon {
  filter: blur(1px);
  opacity: 0.8;
}

@keyframes fadeIn {
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@media (prefers-reduced-motion: reduce) {
  .profile-header, .link-item, .brand-of-sacrifice {
    animation: fade 400ms ease forwards !important;
    transform: none !important;
  }
  .link-item:active, .audio-toggle:hover, .audio-toggle:active {
    transform: none;
  }
  .manga-bg {
    animation: none;
  }
  @keyframes fade {
    from { opacity: 0; }
    to { opacity: 1; }
  }
}

/* Mobile Optimizations for very short or narrow screens */
@media (max-width: 480px), (max-height: 750px) {
  .profile-container {
    gap: 1.5rem;
    padding: 1rem;
    transform: translateY(-2rem); /* Visually center by offsetting the bottom UI */
  }
  .avatar-wrapper {
    width: 130px;
    height: 130px;
  }
  .username {
    font-size: 3.5rem;
  }
  .now-playing {
    bottom: 1rem;
    left: 1rem;
    padding: 0.4rem 0.6rem;
    max-width: calc(100vw - 90px);
  }
  .now-playing-text .song-title {
    font-size: 0.75rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }
  .audio-controls {
    bottom: 1rem;
    right: 1rem;
  }
  .brand-of-sacrifice {
    width: 50px;
    height: 65px;
    top: 1rem;
    right: 1rem;
  }
  .link-item {
    width: 54px;
    height: 54px;
  }
}