/* ============================================================
   NovaStar — base.css
   CSS Design Tokens + Reset + Shared Utilities
   ============================================================ */

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

:root {
  /* 主色调 */
  --p: 138, 92, 246;
  --a: 99, 179, 237;
  --g: 52, 211, 153;
  --r: 248, 113, 113;
  --y: 251, 191, 36;

  /* 背景 & 表面 */
  --bg: #07071a;
  --s1: rgba(255, 255, 255, .04);
  --s2: rgba(255, 255, 255, .07);

  /* 边框 & 文字 */
  --bd: rgba(255, 255, 255, .08);
  --t1: #e2e8f0;
  --t2: #94a3b8;
  --t3: #4a5568;

  /* 通用 */
  --rad: 14px;
  --font: 'Inter', system-ui, sans-serif;
}

html,
body {
  height: 100%;
  font-family: var(--font);
  background: var(--bg);
  color: var(--t1);
  overflow: hidden;
}

/* 滚动条 */
::-webkit-scrollbar {
  width: 4px;
  height: 4px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: rgba(var(--p), .3);
  border-radius: 4px;
}

/* 星空画布 */
canvas#ns-bg {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

/* ============================================================
   Toast 消息提示
   ============================================================ */
#toast {
  position: fixed;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: rgba(20, 20, 45, .98);
  border: 1px solid var(--bd);
  border-radius: 10px;
  padding: 12px 22px;
  font-size: 13px;
  font-weight: 500;
  z-index: 9999;
  opacity: 0;
  transition: all .3s;
  pointer-events: none;
  backdrop-filter: blur(8px);
  white-space: nowrap;
}

#toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ============================================================
   骨架屏加载动画
   ============================================================ */
.skeleton {
  background: linear-gradient(90deg, var(--s1) 25%, var(--s2) 50%, var(--s1) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: 8px;
}

@keyframes shimmer {
  0% {
    background-position: 200% 0;
  }

  100% {
    background-position: -200% 0;
  }
}

/* ============================================================
   通用动画
   ============================================================ */
@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ============================================================
   弹窗 (Modal)
   ============================================================ */
.ns-modal {
  position: fixed;
  inset: 0;
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity .3s;
  padding: 20px;
}

.ns-modal.show {
  opacity: 1;
  pointer-events: auto;
}

.ns-modal-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(2px);
}

.ns-modal-content {
  position: relative;
  width: 100%;
  max-width: 1200px;
  height: 94vh;
  background: var(--bg);
  border: 1px solid var(--bd);
  border-radius: 20px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: 0 30px 60px rgba(0, 0, 0, 0.5);
  transform: translateY(20px);
  transition: transform .3s;
}

.ns-modal.show .ns-modal-content {
  transform: translateY(0);
}

.ns-modal-header {
  padding: 15px 25px;
  border-bottom: 1px solid var(--bd);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(255, 255, 255, 0.02);
}

.ns-modal-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--t1);
}

.ns-modal-close {
  cursor: pointer;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--t2);
  transition: all .2s;
}

.ns-modal-close:hover {
  background: var(--s2);
  color: var(--t1);
}

.ns-modal-body {
  flex: 1;
  overflow: auto;
  position: relative;
}

.ns-modal-body iframe {
  width: 100%;
  height: 100%;
  border: none;
  min-height: 800px;
}