/*
 * Theme: theme-Serenity
 * Author: Serenity
 * Build: 2026-06-03 10:28:07
 * Fingerprint: 18f8d0015be24d2b
 * Copyright (c) 2026 Serenity. All rights reserved.
 */

.welcome-overlay {
  position: fixed !important;
  top: 0 !important;
  left: 0 !important;
  right: 0 !important;
  bottom: 0 !important;
  width: 100vw !important;
  height: 100vh !important;
  z-index: 999999 !important;
  background: var(--color-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 1;
  visibility: visible;
  transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1), 
              visibility 0.8s cubic-bezier(0.4, 0, 0.2, 1);
  contain: none !important;
  overflow: hidden !important;
  overscroll-behavior: contain;
  touch-action: none;
}

/* 欢迎页显示时锁定 body 滚动 */
body:has(.welcome-overlay:not(.hidden)) {
  overflow: hidden !important;
}

.welcome-overlay.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

/* 右上角主题切换按钮 */
.welcome-theme-toggle {
  position: absolute;
  top: 30px;
  right: 30px;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 1px solid var(--color-accent);
  border-radius: var(--radius-md);
  cursor: pointer;
  z-index: 10;
  transition: all var(--duration-fast);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  animation: welcomeTitleFade 1s ease-out 0.3s both;
}

.welcome-theme-toggle:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--color-accent-secondary);
  transform: scale(1.05);
}

[data-theme="light"] .welcome-theme-toggle:hover {
  background: rgba(255, 255, 255, 0.08);
}

.welcome-theme-toggle svg {
  width: 20px;
  height: 20px;
  color: var(--color-accent);
  transition: all var(--duration-fast);
}

.welcome-theme-toggle:hover svg {
  color: var(--color-accent-secondary);
}

/* 暗色模式显示太阳，亮色模式显示月亮 */
.welcome-theme-toggle .icon-sun {
  display: block;
}

.welcome-theme-toggle .icon-moon {
  display: none;
}

[data-theme="light"] .welcome-theme-toggle .icon-sun {
  display: none;
}

[data-theme="light"] .welcome-theme-toggle .icon-moon {
  display: block;
}

@media (max-width: 768px) {
  .welcome-theme-toggle {
    top: 20px;
    right: 20px;
    width: 36px;
    height: 36px;
  }
  
  .welcome-theme-toggle svg {
    width: 18px;
    height: 18px;
  }
}

.welcome-overlay::before {
  content: '';
  position: absolute;
  inset: 0;
  background: 
    radial-gradient(ellipse at 20% 80%, rgba(var(--color-accent-rgb, 245, 150, 170), 0.15) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 20%, rgba(var(--color-accent-rgb, 245, 150, 170), 0.1) 0%, transparent 50%);
  pointer-events: none;
}

.welcome-content {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-4);
  text-align: center;
  z-index: 1;
}

/* Logo 容器 */
.welcome-logo-wrapper {
  position: relative;
  width: 200px;
  height: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.welcome-logo {
  width: 160px;
  height: 160px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid rgba(255, 255, 255, 0.2);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
  animation: welcomeLogoFloat 3s ease-in-out infinite;
  z-index: 2;
}

@keyframes welcomeLogoFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

/* Logo 光环 */
.welcome-logo-ring {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 2px solid var(--color-accent);
  opacity: 0.3;
  animation: welcomeRingPulse 2s ease-out infinite;
}

.welcome-logo-ring-2 {
  animation-delay: 1s;
}

@keyframes welcomeRingPulse {
  0% {
    transform: scale(1);
    opacity: 0.5;
  }
  100% {
    transform: scale(1.8);
    opacity: 0;
  }
}

/* 标题 */
.welcome-title {
  font-size: clamp(2.5rem, 8vw, 4rem);
  font-weight: 900;
  font-style: italic;
  padding-right: 0.15em;
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin: 0;
  animation: welcomeTitleFade 1s ease-out 0.3s both;
}

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

/* 标语 */
.welcome-tagline {
  font-size: 1.1rem;
  color: var(--color-text-secondary);
  margin: 0;
  animation: welcomeTitleFade 1s ease-out 0.5s both;
}

/* 描述/简介 */
.welcome-bio {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  margin: 0;
  max-width: 400px;
  line-height: 1.6;
  text-align: center;
  animation: welcomeTitleFade 1s ease-out 0.6s both;
}

/* 粒子背景 */
.welcome-particles {
  position: absolute;
  inset: -100px;
  pointer-events: none;
  overflow: hidden;
}

.welcome-particle {
  position: absolute;
  width: 4px;
  height: 4px;
  background: var(--color-accent);
  border-radius: 50%;
  opacity: 0.3;
  animation: welcomeParticleFloat 8s ease-in-out infinite;
}

@keyframes welcomeParticleFloat {
  0%, 100% {
    transform: translateY(0) translateX(0);
    opacity: 0.3;
  }
  50% {
    transform: translateY(-100px) translateX(50px);
    opacity: 0.6;
  }
}

/* 移动端适配 */
@media (max-width: 768px) {
  .welcome-logo-wrapper {
    width: 160px;
    height: 160px;
  }
  
  .welcome-logo {
    width: 120px;
    height: 120px;
  }
  
  .welcome-title {
    font-size: 2rem;
  }
  
  .welcome-tagline {
    font-size: 0.95rem;
  }
  
  .welcome-bio {
    font-size: 0.8rem;
    max-width: 280px;
  }
  
  .welcome-enter {
    padding: var(--space-2) var(--space-4);
  }
  
  .welcome-enter-text {
    font-size: 12px;
  }
  
  .welcome-mascot-wrapper {
    display: none;
  }
}

/* 右下角吉祥物/装饰动画 */
.welcome-mascot-wrapper {
  position: absolute;
  right: 30px;
  bottom: 30px;
  display: flex;
  flex-direction: column;
  align-items: center;
  z-index: 10;
  animation: welcomeTitleFade 1s ease-out 0.8s both;
}

.welcome-mascot {
  width: 200px;
  height: 200px;
  pointer-events: none;
  flex-shrink: 0;
  position: relative;
}

.welcome-mascot-img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  filter: 
    drop-shadow(0 0 8px rgba(255, 255, 255, 0.6))
    drop-shadow(0 0 15px rgba(255, 255, 255, 0.4))
    drop-shadow(0 0 30px rgba(255, 255, 255, 0.2));
  transition: opacity 0.3s ease;
}

/* 暗色/亮色模式吉祥物切换 */
.welcome-mascot-dark {
  display: block;
}

.welcome-mascot-light {
  display: none;
  position: absolute;
  top: 0;
  left: 0;
}

[data-theme="light"] .welcome-mascot-dark {
  display: none;
}

[data-theme="light"] .welcome-mascot-light {
  display: block;
}

/* 对话气泡 */
.welcome-mascot-bubble {
  position: relative;
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-secondary));
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-lg);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
  animation: welcomeBubblePop 0.5s ease-out 1s both, welcomeBubbleFloat 3s ease-in-out infinite 1.5s;
  max-width: 180px;
  margin-bottom: var(--space-2);
}

.bubble-text {
  font-size: 14px;
  font-weight: 500;
  color: #fff;
  white-space: nowrap;
}

.bubble-tail {
  position: absolute;
  bottom: -8px;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 0;
  border-left: 10px solid transparent;
  border-right: 10px solid transparent;
  border-top: 10px solid var(--color-accent-secondary);
}

@keyframes welcomeBubblePop {
  0% {
    opacity: 0;
    transform: scale(0.5) translateY(10px);
  }
  100% {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

@keyframes welcomeBubbleFloat {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-5px);
  }
}

@keyframes welcomeMascotBounce {
  0%, 100% {
    transform: translateY(0) rotate(-2deg);
  }
  50% {
    transform: translateY(-15px) rotate(2deg);
  }
}

/* 吉祥物和来源链接的水平布局 */
.welcome-mascot-row {
  display: flex;
  align-items: flex-end;
  gap: var(--space-2);
}

/* Twitter/X 来源链接 */
.welcome-mascot-credit {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-full);
  color: var(--color-text-secondary);
  transition: all var(--duration-fast);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  margin-bottom: 20px;
  animation: welcomeTitleFade 1s ease-out 1.2s both;
}

[data-theme="light"] .welcome-mascot-credit {
  background: rgba(0, 0, 0, 0.05);
  border: 1px solid rgba(0, 0, 0, 0.15);
  color: var(--color-text-secondary);
}

.welcome-mascot-credit:hover {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: #fff;
  transform: scale(1.1);
  box-shadow: 0 4px 15px rgba(var(--color-accent-rgb, 245, 150, 170), 0.4);
}

.welcome-mascot-credit svg {
  width: 18px;
  height: 18px;
}

@media (max-width: 768px) {
  .welcome-mascot-wrapper {
    display: none !important;
  }

  .welcome-mascot-credit {
    width: 30px;
    height: 30px;
    margin-bottom: 15px;
  }
  
  .welcome-mascot-credit svg {
    width: 14px;
    height: 14px;
  }
}