/* =========================================================
   base.css —— 全局变量、深色主题、通用组件、安全区适配
   ========================================================= */

:root {
  /* 色彩：深色夜空 + 暖金点缀，哀而不伤 */
  --c-bg-0: #070a14;
  --c-bg-1: #0b0e1a;
  --c-bg-2: #121728;
  --c-panel: rgba(20, 26, 44, 0.86);
  --c-panel-solid: #161c2e;
  --c-line: rgba(255, 255, 255, 0.08);
  --c-text: #e8e6df;
  --c-text-dim: #a7a99f;
  --c-text-mute: #6f7284;
  --c-gold: #d8b56a;
  --c-gold-soft: #e7cf9a;
  --c-warm: #ff8c42;
  --c-ember: #ff5a2c;
  --c-danger: #d98b7a;

  /* 尺寸 */
  --radius: 16px;
  --radius-sm: 10px;
  --gap: 16px;
  --maxw: 1080px;
  --safe-b: env(safe-area-inset-bottom, 0px);
  --safe-t: env(safe-area-inset-top, 0px);

  /* 字体：优先系统楷体/衬线，碑文用 */
  --font-ui: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Microsoft YaHei", "Hiragino Sans GB", sans-serif;
  --font-stele: "Kaiti SC", "STKaiti", "KaiTi", "楷体", "Songti SC", "SimSun", serif;

  --ease-soft: cubic-bezier(0.22, 1, 0.36, 1);
}

* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }

html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  background: var(--c-bg-0);
  color: var(--c-text);
  font-family: var(--font-ui);
  font-size: 16px;
  line-height: 1.6;
  overflow: hidden;
}

body { position: relative; }

/* 全局星空草地背景层 */
#bg-layer {
  position: fixed;
  inset: 0;
  z-index: 0;
  background:
    radial-gradient(120% 80% at 50% 0%, #101a33 0%, #0a0e1c 45%, #06080f 100%);
  background-size: cover;
  background-position: center;
}
#bg-layer.has-image {
  background-image: url("../assets/img/bg_night_grass.png");
  background-blend-mode: normal;
}

/* 视图容器 */
.view {
  position: fixed;
  inset: 0;
  z-index: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
.view[hidden] { display: none !important; }

/* ---------- 通用按钮 ---------- */
.btn-primary {
  display: block;
  width: 100%;
  padding: 14px 18px;
  border: none;
  border-radius: var(--radius-sm);
  background: linear-gradient(180deg, var(--c-gold-soft), var(--c-gold));
  color: #2a2110;
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 1px;
  cursor: pointer;
  transition: transform 0.15s var(--ease-soft), box-shadow 0.2s, opacity 0.2s;
  box-shadow: 0 6px 20px rgba(216, 181, 106, 0.22);
}
.btn-primary:hover:not(:disabled) { transform: translateY(-1px); }
.btn-primary:active:not(:disabled) { transform: translateY(1px) scale(0.99); }
.btn-primary:disabled {
  background: #2a2f42;
  color: #6b7086;
  box-shadow: none;
  cursor: not-allowed;
}
.btn-primary.btn-sm { width: auto; padding: 10px 18px; font-size: 14px; display: inline-block; }

.btn-ghost {
  padding: 10px 18px;
  border: 1px solid var(--c-line);
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--c-text-dim);
  font-size: 14px;
  cursor: pointer;
  transition: background 0.2s, color 0.2s;
}
.btn-ghost:hover { background: rgba(255, 255, 255, 0.05); color: var(--c-text); }

:focus-visible {
  outline: 2px solid var(--c-gold);
  outline-offset: 2px;
}

/* ---------- 抽屉 ---------- */
.drawer-mask {
  position: fixed; inset: 0; z-index: 40;
  background: rgba(4, 6, 12, 0.6);
  backdrop-filter: blur(2px);
  animation: fade 0.25s ease;
}
.drawer {
  position: fixed; z-index: 41;
  background: var(--c-panel-solid);
  border: 1px solid var(--c-line);
  display: flex; flex-direction: column;
  box-shadow: 0 -8px 40px rgba(0, 0, 0, 0.5);
}
.drawer[hidden] { display: none; }
.drawer-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 20px; border-bottom: 1px solid var(--c-line);
}
.drawer-head h2 { margin: 0; font-size: 17px; font-weight: 600; color: var(--c-gold-soft); }
.drawer-close {
  border: none; background: transparent; color: var(--c-text-mute);
  font-size: 18px; cursor: pointer; padding: 4px 8px; border-radius: 6px;
}
.drawer-close:hover { color: var(--c-text); background: rgba(255,255,255,0.06); }
.drawer-body { padding: 18px 20px calc(18px + var(--safe-b)); overflow-y: auto; flex: 1; }

/* 桌面端：右侧滑出 */
@media (min-width: 769px) {
  .drawer { top: 0; right: 0; bottom: 0; width: 400px; max-width: 90vw;
    border-radius: 0; animation: slideRight 0.3s var(--ease-soft); }
}
/* 手机端：底部滑出 */
@media (max-width: 768px) {
  .drawer { left: 0; right: 0; bottom: 0; max-height: 80vh;
    border-radius: var(--radius) var(--radius) 0 0; animation: slideUp 0.3s var(--ease-soft); }
}

@keyframes slideRight { from { transform: translateX(100%); } to { transform: translateX(0); } }
@keyframes slideUp { from { transform: translateY(100%); } to { transform: translateY(0); } }
@keyframes fade { from { opacity: 0; } to { opacity: 1; } }

/* ---------- 弹窗 ---------- */
.modal-mask {
  position: fixed; inset: 0; z-index: 60;
  background: rgba(4, 6, 12, 0.7);
  display: flex; align-items: center; justify-content: center;
  padding: 24px; animation: fade 0.2s ease;
}
.modal-mask[hidden] { display: none; }
.modal {
  width: 100%; max-width: 380px;
  background: var(--c-panel-solid); border: 1px solid var(--c-line);
  border-radius: var(--radius); padding: 24px;
  box-shadow: 0 16px 60px rgba(0,0,0,0.6);
}
.modal-text { margin: 0 0 16px; font-size: 15px; color: var(--c-text); text-align: center; }
.modal-input-wrap { margin-bottom: 16px; }
.modal-input-wrap input {
  width: 100%; padding: 10px 12px; border-radius: var(--radius-sm);
  border: 1px solid var(--c-line); background: var(--c-bg-2); color: var(--c-text); font-size: 16px;
}
.modal-actions { display: flex; gap: 12px; justify-content: center; }

/* ---------- 轻提示 ---------- */
.toast {
  position: fixed; z-index: 70; left: 50%;
  bottom: calc(28px + var(--safe-b));
  transform: translateX(-50%);
  background: rgba(30, 36, 56, 0.96); color: var(--c-text);
  border: 1px solid var(--c-line);
  padding: 12px 20px; border-radius: 999px; font-size: 14px;
  box-shadow: 0 8px 30px rgba(0,0,0,0.5);
  animation: toastIn 0.3s var(--ease-soft);
  max-width: 88vw; text-align: center;
}
.toast[hidden] { display: none; }
@keyframes toastIn { from { opacity: 0; transform: translate(-50%, 12px); } to { opacity: 1; transform: translate(-50%, 0); } }

/* ---------- 照片大图预览 ---------- */
.lightbox {
  position: fixed; inset: 0; z-index: 80; background: rgba(3, 5, 10, 0.94);
  display: flex; align-items: center; justify-content: center;
}
.lightbox[hidden] { display: none; }
.lightbox img { max-width: 92vw; max-height: 86vh; border-radius: 8px; box-shadow: 0 10px 50px rgba(0,0,0,0.7); }
.lb-close, .lb-nav {
  position: absolute; border: none; background: rgba(255,255,255,0.08); color: var(--c-text);
  width: 44px; height: 44px; border-radius: 50%; font-size: 22px; cursor: pointer;
}
.lb-close { top: calc(16px + var(--safe-t)); right: 16px; }
.lb-nav { top: 50%; transform: translateY(-50%); }
.lb-prev { left: 16px; } .lb-next { right: 16px; }
.lb-close:hover, .lb-nav:hover { background: rgba(255,255,255,0.18); }

/* 减少动态效果偏好 */
@media (prefers-reduced-motion: reduce) {
  * { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}