/* ============================================
 *  styles.css — Personal Console
 *  Dark Futuristic · Cyber Aesthetic · Eastern Art
 *  DESIGN_VARIANCE: 8  MOTION: 6  DENSITY: 3
 * ============================================ */

/* ---------- Reset ---------- */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

/* ---------- Tokens ---------- */
:root {
  /* 深色宇宙色系 */
  --bg-deep:      #0a0a12;
  --bg-mid:       #0e0e1a;
  --bg-surface:   rgba(16, 16, 32, 0.6);

  /* 蓝紫渐变 */
  --blue-start:   #4a6cf7;
  --blue-mid:     #6e8efb;
  --blue-end:     #a777e3;
  --purple-deep:  #5b2c8e;

  /* 光效 */
  --glow-blue:    rgba(74, 108, 247, 0.35);
  --glow-purple:  rgba(167, 119, 227, 0.25);
  --glow-soft:    rgba(110, 142, 251, 0.12);

  /* 文字 */
  --text-primary:   #e8e8f0;
  --text-secondary: #8888a8;
  --text-muted:     #55556a;

  /* 毛玻璃 */
  --glass-bg:     rgba(14, 14, 28, 0.55);
  --glass-border: rgba(255, 255, 255, 0.07);
  --glass-hover:  rgba(20, 20, 40, 0.75);

  /* 圆角 */
  --r-sm: 12px;
  --r-md: 18px;
  --r-lg: 24px;

  /* 间距 */
  --s-xs:  0.5rem;
  --s-sm:  0.75rem;
  --s-md:  1rem;
  --s-lg:  1.5rem;
  --s-xl:  2rem;
  --s-2xl: 3rem;
  --s-3xl: 4.5rem;

  /* 缓动 */
  --ease-expo:  cubic-bezier(0.16, 1, 0.3, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* ---------- Base ---------- */
html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: 'Noto Sans SC', system-ui, sans-serif;
  background: var(--bg-deep);
  color: var(--text-primary);
  min-height: 100dvh;
  overflow-x: hidden;
  position: relative;
}

/* ---------- Starfield Canvas ---------- */
.starfield {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

/* ---------- 流动渐变背景 ---------- */
.bg-flow {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background:
    radial-gradient(ellipse 80% 60% at 20% 30%, rgba(74, 108, 247, 0.12) 0%, transparent 70%),
    radial-gradient(ellipse 60% 50% at 80% 70%, rgba(91, 44, 142, 0.1) 0%, transparent 70%),
    radial-gradient(ellipse 90% 40% at 50% 90%, rgba(110, 142, 251, 0.06) 0%, transparent 70%);
  animation: bgShift 20s ease-in-out infinite alternate;
}

@keyframes bgShift {
  0%   { opacity: 1; transform: scale(1); }
  50%  { opacity: 0.8; transform: scale(1.05) translateX(-2%); }
  100% { opacity: 1; transform: scale(1) translateX(2%); }
}

/* ---------- 粒子层 ---------- */
.particles {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}

.particle {
  position: absolute;
  border-radius: 50%;
  background: var(--blue-mid);
  opacity: 0;
  animation: particleDrift linear infinite;
}

@keyframes particleDrift {
  0%   { opacity: 0; transform: translateY(0) scale(0.5); }
  15%  { opacity: 0.6; }
  85%  { opacity: 0.6; }
  100% { opacity: 0; transform: translateY(-100vh) scale(1); }
}

/* ---------- 主容器 ---------- */
.console {
  position: relative;
  z-index: 1;
  max-width: 700px;
  margin: 0 auto;
  padding: 0 var(--s-lg);
  display: flex;
  flex-direction: column;
  align-items: center;
  min-height: 100dvh;
  justify-content: center;
  gap: var(--s-xl);
}

/* ========== HERO ========== */
.hero {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: var(--s-lg);
  padding: var(--s-2xl) 0 var(--s-lg);
  /* 初始隐藏，GSAP 接管 */
  opacity: 0;
}

/* --- Avatar --- */
.avatar-wrapper {
  position: relative;
  width: 128px;
  height: 128px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.avatar-ring {
  position: absolute;
  inset: -6px;
  border-radius: 50%;
  border: 2px solid transparent;
  background:
    linear-gradient(var(--bg-deep), var(--bg-deep)) padding-box,
    linear-gradient(135deg, var(--blue-start), var(--blue-end)) border-box;
  animation: ringPulse 4s ease-in-out infinite;
}

.avatar-glow {
  position: absolute;
  inset: -20px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--glow-blue) 0%, transparent 70%);
  filter: blur(18px);
  opacity: 0.6;
  animation: glowBreathe 3s ease-in-out infinite;
}

.avatar {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  overflow: hidden;
  position: relative;
  z-index: 1;
  border: 2px solid rgba(255, 255, 255, 0.08);
  background: var(--bg-deep);
  cursor: pointer;
  transition: transform 0.45s var(--ease-spring), box-shadow 0.45s ease;
}

.avatar:hover {
  transform: scale(1.08) rotate(-2deg);
  box-shadow: 0 0 40px var(--glow-blue), 0 0 80px var(--glow-purple);
}

.avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

@keyframes ringPulse {
  0%, 100% { transform: scale(1); opacity: 1; }
  50%      { transform: scale(1.06); opacity: 0.7; }
}

@keyframes glowBreathe {
  0%, 100% { opacity: 0.5; transform: scale(1); }
  50%      { opacity: 0.8; transform: scale(1.1); }
}

/* --- User ID --- */
.user-id {
  font-family: 'Orbitron', sans-serif;
  font-size: 2.8rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  background: linear-gradient(135deg, var(--blue-start), var(--blue-mid), var(--blue-end));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-shadow: none;
  position: relative;
}

.user-id::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 50%;
  transform: translateX(-50%);
  width: 60%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--blue-mid), transparent);
  opacity: 0.4;
}

/* --- Bio --- */
.bio {
  font-size: 1rem;
  font-weight: 300;
  color: var(--text-secondary);
  letter-spacing: 0.04em;
}

/* --- 东方艺术文字 --- */
.art-text-wrapper {
  position: relative;
  margin-top: var(--s-sm);
  padding: var(--s-sm) var(--s-xl);
}

.art-text {
  font-family: 'Noto Serif SC', serif;
  font-size: 1.15rem;
  font-weight: 400;
  color: var(--text-secondary);
  letter-spacing: 0.15em;
  position: relative;
  z-index: 1;
  opacity: 0;
  animation: artTextFade 5s ease-in-out 2s forwards;
}

.art-text-glow {
  position: absolute;
  inset: -10px;
  background: radial-gradient(ellipse at center, var(--glow-soft) 0%, transparent 70%);
  filter: blur(20px);
  opacity: 0;
  animation: artGlow 6s ease-in-out 2.5s infinite;
}

@keyframes artTextFade {
  0%   { opacity: 0; transform: translateY(12px); letter-spacing: 0.3em; }
  100% { opacity: 0.75; transform: translateY(0); letter-spacing: 0.15em; }
}

@keyframes artGlow {
  0%, 100% { opacity: 0; }
  50%      { opacity: 0.4; }
}

/* ========== NAV GRID ========== */
.nav-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--s-md);
  width: 100%;
  max-width: 620px;
  /* 初始隐藏 */
  opacity: 0;
}

/* --- Nav Card --- */
.nav-card {
  position: relative;
  text-decoration: none;
  color: inherit;
  border-radius: var(--r-lg);
  cursor: pointer;
  outline: none;
  display: block;
  overflow: hidden;
}

.nav-card__glow {
  position: absolute;
  inset: 0;
  border-radius: var(--r-lg);
  opacity: 0;
  background: radial-gradient(
    350px circle at var(--mouse-x, 50%) var(--mouse-y, 50%),
    var(--glow-blue),
    transparent 40%
  );
  transition: opacity 0.35s ease;
  pointer-events: none;
  z-index: 0;
}

.nav-card:hover .nav-card__glow {
  opacity: 1;
}

.nav-card__inner {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--s-sm);
  padding: var(--s-lg) var(--s-md);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--r-lg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  transition:
    background 0.4s ease,
    border-color 0.4s ease,
    transform 0.45s var(--ease-expo),
    box-shadow 0.45s ease;
}

.nav-card:hover .nav-card__inner {
  background: var(--glass-hover);
  border-color: rgba(110, 142, 251, 0.25);
  transform: translateY(-6px) scale(1.04);
  box-shadow:
    0 12px 40px rgba(0, 0, 0, 0.4),
    0 0 30px var(--glow-soft);
}

.nav-card:focus-visible .nav-card__inner {
  outline: 2px solid var(--blue-mid);
  outline-offset: 3px;
}

/* Nav Icon */
.nav-card__icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--r-md);
  background: linear-gradient(135deg, rgba(74, 108, 247, 0.15), rgba(167, 119, 227, 0.1));
  color: var(--blue-mid);
  transition: all 0.4s var(--ease-expo);
}

.nav-card:hover .nav-card__icon {
  background: linear-gradient(135deg, rgba(74, 108, 247, 0.3), rgba(167, 119, 227, 0.2));
  color: var(--text-primary);
  transform: scale(1.1);
  box-shadow: 0 0 20px var(--glow-blue);
}

.nav-card__label {
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-secondary);
  letter-spacing: 0.02em;
  text-align: center;
  transition: color 0.3s ease;
}

.nav-card:hover .nav-card__label {
  color: var(--text-primary);
}

/* 第五行只有两个按钮时居中 */
.nav-grid > .nav-card:nth-child(4) { grid-column: 1 / 2; }
.nav-grid > .nav-card:nth-child(5) { grid-column: 3 / 4; }

/* ========== FOOTER ========== */
.footer {
  text-align: center;
  padding: var(--s-lg) 0 var(--s-xl);
  opacity: 0;
}

.footer__line {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--s-sm);
  font-size: 0.75rem;
  font-weight: 300;
  color: var(--text-muted);
  letter-spacing: 0.08em;
}

.footer__glyph {
  color: var(--blue-mid);
  opacity: 0.5;
  font-size: 0.6rem;
}

/* ========== Scrollbar ========== */
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb {
  background: rgba(110, 142, 251, 0.3);
  border-radius: 10px;
}
::-webkit-scrollbar-thumb:hover {
  background: rgba(110, 142, 251, 0.5);
}

/* ========== Selection ========== */
::selection {
  background: rgba(110, 142, 251, 0.3);
  color: var(--text-primary);
}

/* ========== 响应式 ========== */
@media (max-width: 640px) {
  .console {
    padding: 0 var(--s-md);
    gap: var(--s-lg);
  }

  .avatar-wrapper {
    width: 100px;
    height: 100px;
  }
  .avatar {
    width: 94px;
    height: 94px;
  }

  .user-id {
    font-size: 2rem;
    letter-spacing: 0.08em;
  }

  .bio {
    font-size: 0.9rem;
  }

  .art-text {
    font-size: 1rem;
    letter-spacing: 0.1em;
  }

  .nav-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .nav-grid > .nav-card:nth-child(4),
  .nav-grid > .nav-card:nth-child(5) {
    grid-column: auto;
  }

  .nav-card__inner {
    padding: var(--s-md) var(--s-sm);
  }

  .nav-card__icon {
    width: 42px;
    height: 42px;
  }

  .nav-card__label {
    font-size: 0.78rem;
  }
}

@media (max-width: 380px) {
  .nav-grid {
    grid-template-columns: 1fr;
    max-width: 260px;
  }
}

/* ========== 减弱动画偏好 ========== */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .starfield, .particles { display: none; }
}