/* ============================================
   星际拓荒者 - 赛博深空主题
   霓虹紫 + 电子蓝 + 全息金
   ============================================ */

:root {
  /* 主色调 — 霓虹紫 */
  --color-primary: #a855f7;
  --color-primary-light: #c084fc;
  --color-primary-dark: #7c3aed;
  --color-primary-glow: rgba(168, 85, 247, 0.35);
  /* 强调色 — 电子蓝/青 */
  --color-accent: #06b6d4;
  --color-accent-light: #22d3ee;
  --color-accent-glow: rgba(6, 182, 212, 0.4);
  /* 辅助色 */
  --color-gold: #fbbf24;
  --color-gold-glow: rgba(251, 191, 36, 0.35);
  --color-danger: #ef4444;
  --color-danger-glow: rgba(239, 68, 68, 0.3);
  --color-info: #38bdf8;
  --color-success: #34d399;

  /* 资源颜色 */
  --color-ore: #94a3b8;
  --color-crystal: #a855f7;
  --color-parts: #22d3ee;
  --color-starmap: #fbbf24;

  /* 间距 */
  --spacing-xs: 4px;  --spacing-sm: 8px;  --spacing-md: 12px;
  --spacing-lg: 16px; --spacing-xl: 24px; --spacing-xxl: 32px;

  /* 圆角 */
  --radius-sm: 8px; --radius-md: 12px; --radius-lg: 16px;
  --radius-xl: 20px; --radius-full: 9999px;

  /* 字号 */
  --font-xs: 11px; --font-sm: 13px; --font-md: 15px;
  --font-lg: 18px; --font-xl: 22px; --font-xxl: 28px; --font-hero: 36px;

  /* 动画 */
  --duration-fast: 150ms; --duration-normal: 300ms; --duration-slow: 500ms;

  /* 采集按钮尺寸 */
  --mining-btn-size: 180px;
}

/* ---- Dark Theme (默认) ---- */
[data-theme="dark"] {
  --bg-primary: #09090b;
  --bg-secondary: #18181b;
  --bg-tertiary: #27272a;
  --bg-card: rgba(24, 24, 27, 0.92);
  --bg-glass: rgba(24, 24, 27, 0.65);
  --bg-overlay: rgba(0, 0, 0, 0.7);
  --bg-input: rgba(39, 39, 42, 0.85);
  --bg-hover: rgba(168, 85, 247, 0.12);
  --bg-active: rgba(168, 85, 247, 0.22);

  --text-primary: #f4f4f5;
  --text-secondary: #a1a1aa;
  --text-tertiary: #71717a;
  --text-inverse: #09090b;
  --text-link: #38bdf8;

  --border-primary: rgba(255, 255, 255, 0.1);
  --border-secondary: rgba(255, 255, 255, 0.06);
  --border-accent: rgba(168, 85, 247, 0.3);

  --gradient-bg: linear-gradient(180deg, #09090b 0%, #0c0a1d 40%, #0f0b2e 70%, #09090b 100%);
  --gradient-card: linear-gradient(135deg, rgba(168,85,247,0.06) 0%, rgba(6,182,212,0.04) 100%);
  --gradient-btn: linear-gradient(135deg, #7c3aed 0%, #a855f7 50%, #6d28d9 100%);
  --gradient-accent: linear-gradient(135deg, #0891b2 0%, #06b6d4 50%, #22d3ee 100%);
  --gradient-gold: linear-gradient(135deg, #d97706 0%, #fbbf24 50%, #fcd34d 100%);
  --gradient-bar: linear-gradient(90deg, #7c3aed, #a855f7, #06b6d4);
}

/* ---- Light Theme ---- */
[data-theme="light"] {
  --bg-primary: #f8f7ff;
  --bg-secondary: #ede9fe;
  --bg-tertiary: #ddd6fe;
  --bg-card: rgba(255,255,255,0.92);
  --bg-glass: rgba(255,255,255,0.7);
  --bg-overlay: rgba(0,0,0,0.3);
  --bg-input: rgba(255,255,255,0.9);
  --bg-hover: rgba(168,85,247,0.08);
  --bg-active: rgba(168,85,247,0.15);

  --text-primary: #18181b;
  --text-secondary: #52525b;
  --text-tertiary: #a1a1aa;
  --text-inverse: #f4f4f5;
  --text-link: #2563eb;

  --border-primary: rgba(0,0,0,0.1);
  --border-secondary: rgba(0,0,0,0.05);
  --border-accent: rgba(168,85,247,0.2);

  --gradient-bg: linear-gradient(180deg, #f8f7ff 0%, #ede9fe 40%, #f3e8ff 70%, #f8f7ff 100%);
  --gradient-card: linear-gradient(135deg, rgba(168,85,247,0.04) 0%, rgba(6,182,212,0.02) 100%);
  --gradient-btn: linear-gradient(135deg, #a855f7 0%, #c084fc 50%, #9333ea 100%);
  --gradient-accent: linear-gradient(135deg, #06b6d4 0%, #22d3ee 50%, #67e8f9 100%);
  --gradient-gold: linear-gradient(135deg, #f59e0b 0%, #fbbf24 50%, #fde68a 100%);
  --gradient-bar: linear-gradient(90deg, #a855f7, #c084fc, #22d3ee);
}

/* ---- 全局重置 ---- */
* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }

body {
  margin: 0; padding: 0;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Noto Sans SC', sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  user-select: none; -webkit-user-select: none;
}

/* 星空背景 */
#starfield {
  position: fixed; inset: 0; z-index: 0;
  background: var(--gradient-bg);
  pointer-events: none;
}

.star {
  position: absolute;
  border-radius: 50%;
  background: #fff;
  animation: twinkle var(--twinkle-dur) ease-in-out infinite;
  animation-delay: var(--twinkle-delay);
  opacity: 0;
}

@keyframes twinkle {
  0%, 100% { opacity: 0.2; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.3); }
}

/* 星云光晕 */
#starfield::before {
  content: '';
  position: absolute;
  width: 60vw; height: 60vw;
  background: radial-gradient(circle, var(--color-primary-glow) 0%, transparent 70%);
  top: -20%; left: 20%;
  animation: nebula-drift 20s ease-in-out infinite;
}

#starfield::after {
  content: '';
  position: absolute;
  width: 50vw; height: 50vw;
  background: radial-gradient(circle, var(--color-accent-glow) 0%, transparent 70%);
  bottom: -10%; right: 10%;
  animation: nebula-drift 25s ease-in-out infinite reverse;
}

@keyframes nebula-drift {
  0%, 100% { transform: translate(0, 0); }
  25% { transform: translate(5vw, 3vw); }
  50% { transform: translate(-2vw, 5vw); }
  75% { transform: translate(-4vw, -2vw); }
}

/* 星尘粒子 */
.dust-particle {
  position: absolute;
  width: 1px; height: 1px;
  background: var(--color-primary-light);
  animation: dust-float var(--dust-dur) linear infinite;
  opacity: 0;
}

@keyframes dust-float {
  0% { opacity: 0; transform: translate(0, 0); }
  10% { opacity: 0.6; }
  90% { opacity: 0.6; }
  100% { opacity: 0; transform: translate(var(--dust-dx), var(--dust-dy)); }
}

/* 主应用 */
#app {
  position: relative; z-index: 1;
  max-width: 480px; margin: 0 auto;
  padding-bottom: 80px;
  min-height: 100dvh;
}

/* 认证加载页 */
.auth-screen {
  position: fixed; inset: 0; z-index: 100;
  background: var(--gradient-bg);
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  gap: var(--spacing-lg);
}

.auth-logo {
  font-size: 64px;
  animation: auth-pulse 2s ease-in-out infinite;
}

@keyframes auth-pulse {
  0%, 100% { transform: scale(1); filter: drop-shadow(0 0 20px var(--color-primary-glow)); }
  50% { transform: scale(1.1); filter: drop-shadow(0 0 40px var(--color-primary-glow)); }
}

.auth-title {
  font-size: var(--font-xxl); font-weight: 800;
  background: var(--gradient-btn);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}

.auth-subtitle {
  font-size: var(--font-sm); color: var(--text-secondary);
}

.auth-loading {
  width: 48px; height: 48px;
  border: 3px solid var(--border-primary);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }