/* 小妖导航 · 重构版样式 */
:root {
  --bg-overlay: rgba(18, 20, 28, 0.45);
  --card: rgba(255, 255, 255, 0.12);
  --card-solid: rgba(28, 30, 38, 0.92);
  --ink: #f2f4f8;
  --ink-dim: rgba(242, 244, 248, 0.72);
  --ink-soft: rgba(242, 244, 248, 0.55);
  --accent: #4f8cff;
  --accent-2: #7c5cff;
  --danger: #ff5c6c;
  --ok: #3ecf8e;
  --radius: 14px;
  --shadow: 0 12px 40px rgba(0, 0, 0, 0.28);
  --border: rgba(255, 255, 255, 0.14);
  --input-bg: rgba(255, 255, 255, 0.08);
  --input-bg-focus: rgba(255, 255, 255, 0.12);
  --search-bg: rgba(255, 255, 255, 0.16);
  --hover-card: rgba(255, 255, 255, 0.1);
  --tool-bg: rgba(30, 32, 42, 0.78);
  --text-shadow: 0 1px 3px rgba(0, 0, 0, 0.35);
  --font: "PingFang SC", "Microsoft YaHei", "Segoe UI", system-ui, sans-serif;
}

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

html,
body {
  min-height: 100%;
}

body {
  font-family: var(--font);
  color: var(--ink);
  background: #1b1e27 url("../pic/bg3.jpg") center / cover fixed no-repeat;
  line-height: 1.5;
  padding: 36px 16px 90px;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background: var(--bg-overlay);
  pointer-events: none;
  z-index: 0;
}

body.night {
  --bg-overlay: rgba(6, 8, 14, 0.72);
  --card: rgba(18, 20, 28, 0.55);
  --card-solid: rgba(14, 16, 24, 0.96);
  --ink: #e8ecf4;
  --ink-dim: rgba(232, 236, 244, 0.62);
  --ink-soft: rgba(232, 236, 244, 0.42);
  --border: rgba(255, 255, 255, 0.08);
  --input-bg: rgba(255, 255, 255, 0.05);
  --input-bg-focus: rgba(255, 255, 255, 0.09);
  --search-bg: rgba(12, 14, 22, 0.55);
  --hover-card: rgba(255, 255, 255, 0.06);
  --tool-bg: rgba(12, 14, 22, 0.88);
  --text-shadow: 0 1px 4px rgba(0, 0, 0, 0.65);
  --shadow: 0 14px 44px rgba(0, 0, 0, 0.5);
}

body.night::before {
  background: rgba(4, 6, 12, 0.28);
  mix-blend-mode: multiply;
}

main {
  position: relative;
  z-index: 1;
  max-width: 980px;
  margin: 0 auto;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
select,
textarea {
  font: inherit;
  color: inherit;
}

/* ---------- 顶部：Logo + 标题 ---------- */
.brand {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  margin-bottom: 22px;
}

#site-logo {
  width: 96px;
  height: 96px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.15) center / cover no-repeat;
  box-shadow: var(--shadow);
  transition: transform 0.5s cubic-bezier(0.71, 0.01, 0.25, 0.99);
  cursor: pointer;
  border: 2px solid rgba(255, 255, 255, 0.25);
}

#site-logo:hover {
  transform: rotate(360deg);
}

#site-logo:not(.has-img)::after {
  content: "妖";
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  font-size: 36px;
  font-weight: 600;
  color: #fff;
}

body.admin-mode #site-logo {
  cursor: pointer;
  outline: 2px dashed rgba(255, 255, 255, 0.45);
  outline-offset: 4px;
}

.logo-edit-hint {
  display: none;
  margin-top: 6px;
  font-size: 12px;
  color: var(--ink-dim);
  background: rgba(0, 0, 0, 0.28);
  padding: 4px 10px;
  border-radius: 999px;
}

body.admin-mode .logo-edit-hint {
  display: inline-block;
}

/* 表单内图片预览 */
.asset-preview {
  width: 48px;
  height: 48px;
  border-radius: 10px;
  object-fit: cover;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.14);
  flex-shrink: 0;
}

.asset-preview.logo-preview {
  width: 64px;
  height: 64px;
  border-radius: 50%;
}

.asset-row {
  display: flex;
  gap: 10px;
  align-items: center;
}

.asset-row .field {
  flex: 1;
  margin-bottom: 0;
}

.file-pick {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 40px;
  padding: 0 12px;
  border-radius: 10px;
  border: 1px dashed rgba(255, 255, 255, 0.22);
  background: rgba(255, 255, 255, 0.06);
  font-size: 12px;
  color: var(--ink-dim);
  cursor: pointer;
  white-space: nowrap;
}

.file-pick:hover {
  border-color: var(--accent);
  color: #fff;
}

.file-pick input {
  display: none;
}

#site-title {
  font-size: 22px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.35);
}

/* ---------- 搜索条 ---------- */
.search-bar {
  display: flex;
  width: min(640px, 100%);
  margin: 0 auto 28px;
  border-radius: 999px;
  overflow: hidden;
  box-shadow: var(--shadow);
  background: var(--search-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border);
  transition: background 0.25s ease, border-color 0.25s ease;
}

.search-bar input {
  flex: 1;
  min-width: 0;
  height: 48px;
  padding: 0 16px;
  border: 0;
  outline: none;
  background: transparent;
  color: var(--ink);
  font-size: 15px;
  border-left: 1px solid var(--border);
  border-right: 1px solid var(--border);
}

.search-bar input::placeholder {
  color: var(--ink-dim);
}

.search-bar input:focus {
  background: var(--input-bg-focus);
}

.engine-btn {
  height: 48px;
  padding: 0 18px;
  border: 0;
  cursor: pointer;
  font-size: 14px;
  font-weight: 500;
  color: #fff;
  transition: filter 0.15s ease, transform 0.15s ease;
  white-space: nowrap;
  flex-shrink: 0;
}

.engine-btn:hover {
  filter: brightness(1.08);
}

.engine-btn:active {
  transform: scale(0.98);
}

.engine-left {
  border-radius: 999px 0 0 999px;
  padding-left: 22px;
}

.engine-right {
  border-radius: 0 999px 999px 0;
  padding-right: 22px;
}

#btn-google {
  background: linear-gradient(135deg, #4285f4, #34a853 45%, #fbbc05 72%, #ea4335);
}

#btn-baidu {
  background: linear-gradient(135deg, #2932e1, #4e6ef2);
}

#btn-bing {
  background: linear-gradient(135deg, #0c8484, #00b4d8 50%, #28a9e0);
}

/* ---------- 链接网格 ---------- */
.links-wrap {
  background: var(--card);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 12px 10px;
  box-shadow: var(--shadow);
  transition: background 0.25s ease, border-color 0.25s ease;
}

#links-grid {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(92px, 1fr));
  gap: 8px 4px;
}

.link-card {
  position: relative;
  border-radius: 12px;
  padding: 10px 4px 8px;
  transition: background 0.18s ease, transform 0.18s ease;
}

.link-card:hover {
  background: var(--hover-card);
  transform: translateY(-2px);
}

.link-anchor {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  text-align: center;
}

.is-hidden {
  display: none !important;
}

.link-icon {
  width: 50px;
  height: 50px;
  border-radius: 10px;
  object-fit: cover;
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.22);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  background: rgba(255, 255, 255, 0.2);
}

.link-icon.fallback {
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 18px;
  font-weight: 600;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.35);
}

.link-card:hover .link-icon {
  transform: translateY(-3px);
  box-shadow: 0 14px 22px rgba(0, 0, 0, 0.28);
}

.link-name {
  display: block;
  width: 100%;
  font-size: 12px;
  color: var(--ink);
  text-shadow: var(--text-shadow);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* 管理模式：删除 / 编辑 */
.link-del,
.link-edit {
  display: none;
  position: absolute;
  width: 22px;
  height: 22px;
  border: 0;
  border-radius: 50%;
  color: #fff;
  font-size: 13px;
  line-height: 22px;
  text-align: center;
  cursor: pointer;
  z-index: 2;
  opacity: 0.92;
}

.link-del {
  top: 2px;
  right: 4px;
  background: var(--danger);
}

.link-edit {
  top: 2px;
  left: 4px;
  background: var(--accent);
  font-size: 11px;
}

body.admin-mode .link-del,
body.admin-mode .link-edit {
  display: block;
}

body.admin-mode .link-card {
  outline: 1px dashed rgba(255, 255, 255, 0.22);
}

.empty-hint {
  grid-column: 1 / -1;
  text-align: center;
  color: var(--ink-dim);
  padding: 36px 12px;
  font-size: 14px;
}

/* ---------- 右下角工具 ---------- */
.tools {
  position: fixed;
  right: 22px;
  bottom: 28px;
  z-index: 20;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.tool-btn {
  width: 52px;
  height: 52px;
  border: 0;
  border-radius: 50%;
  background: var(--tool-bg);
  color: #fff;
  font-size: 18px;
  cursor: pointer;
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: transform 0.18s ease, background 0.18s ease;
}

.tool-btn:hover {
  transform: translateY(-2px) scale(1.04);
  background: var(--accent);
}

.tool-btn.admin-on {
  background: var(--ok);
}

#btn-add-link {
  background: var(--accent-2);
}

body:not(.admin-mode) #btn-add-link,
body:not(.admin-mode) #btn-settings {
  opacity: 0.55;
}

/* ---------- 页脚 ---------- */
.footer {
  margin-top: 28px;
  text-align: center;
  font-size: 12px;
  color: var(--ink-dim);
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}

.footer a:hover {
  color: #fff;
}

/* ---------- 模态框 ---------- */
.modal {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 16px;
  background: rgba(8, 10, 16, 0.55);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}

.modal.open {
  display: flex;
}

.modal-card {
  width: min(420px, 100%);
  background: var(--card-solid);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 16px;
  padding: 22px 22px 18px;
  box-shadow: var(--shadow);
  max-height: min(90vh, 720px);
  overflow: auto;
}

.modal-card.wide {
  width: min(520px, 100%);
}

.modal-title {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 6px;
}

.modal-desc {
  font-size: 13px;
  color: var(--ink-dim);
  margin-bottom: 16px;
}

.field {
  margin-bottom: 12px;
}

.field label {
  display: block;
  font-size: 12px;
  color: var(--ink-dim);
  margin-bottom: 6px;
}

.field input,
.field select {
  width: 100%;
  height: 40px;
  padding: 0 12px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--input-bg);
  outline: none;
}

.field input:focus,
.field select:focus {
  border-color: var(--accent);
  background: var(--input-bg-focus);
}

.field select option {
  color: #222;
}

body.night .field select option {
  color: #e8ecf4;
  background: #1a1c24;
}

.flex-input {
  min-width: 0;
}

.modal-card {
  width: min(420px, 100%);
  background: var(--card-solid);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 22px 22px 18px;
  box-shadow: var(--shadow);
  max-height: min(90vh, 720px);
  overflow: auto;
}

.field-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.checkbox-field {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 10px 0 4px;
  font-size: 13px;
}

.checkbox-field input {
  width: 16px;
  height: 16px;
}

.modal-actions {
  display: flex;
  gap: 10px;
  margin-top: 16px;
}

.btn {
  flex: 1;
  height: 40px;
  border: 0;
  border-radius: 10px;
  cursor: pointer;
  font-size: 14px;
  font-weight: 500;
  transition: filter 0.15s ease, transform 0.15s ease;
}

.btn:hover {
  filter: brightness(1.08);
}

.btn:active {
  transform: scale(0.98);
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #fff;
}

.btn-ghost {
  background: var(--hover-card);
  color: var(--ink);
  border: 1px solid var(--border);
}

.btn-danger {
  background: rgba(255, 92, 108, 0.2);
  color: var(--danger);
}

body.night .btn-danger {
  background: rgba(255, 92, 108, 0.28);
  color: #ff8a96;
}

body.night #site-title,
body.night .footer {
  text-shadow: 0 2px 16px rgba(0, 0, 0, 0.65);
}

body.night .link-icon {
  box-shadow: 0 8px 18px rgba(0, 0, 0, 0.45);
  filter: brightness(0.92) contrast(1.05);
}

body.night .link-card:hover .link-icon {
  filter: brightness(1) contrast(1.05);
}

body.night .engine-btn {
  filter: brightness(0.92) saturate(1.05);
}

body.night .engine-btn:hover {
  filter: brightness(1.05) saturate(1.1);
}

body.night .modal {
  background: rgba(4, 6, 12, 0.72);
}

body.night .toast {
  background: rgba(14, 16, 24, 0.96);
  border: 1px solid var(--border);
}

body.night .logo-edit-hint {
  background: rgba(0, 0, 0, 0.5);
  color: var(--ink-dim);
}

.btn-row-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-top: 8px;
}

.settings-extra {
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

/* ---------- Toast ---------- */
.toast {
  position: fixed;
  left: 50%;
  top: 28px;
  transform: translateX(-50%) translateY(-12px);
  z-index: 200;
  padding: 10px 18px;
  border-radius: 999px;
  background: rgba(28, 30, 38, 0.92);
  color: #fff;
  font-size: 13px;
  box-shadow: var(--shadow);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.22s ease, transform 0.22s ease;
}

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

.toast.error {
  background: rgba(180, 40, 55, 0.95);
}

.toast.ok {
  background: rgba(30, 140, 90, 0.95);
}

/* ---------- 响应式 ---------- */
@media (max-width: 640px) {
  body {
    padding: 24px 10px 100px;
  }

  .search-bar {
    width: 100%;
  }

  .engine-btn {
    padding: 0 10px;
    font-size: 12px;
  }

  .engine-left {
    padding-left: 12px;
  }

  .engine-right {
    padding-right: 12px;
  }

  #links-grid {
    grid-template-columns: repeat(auto-fill, minmax(78px, 1fr));
  }

  .tools {
    right: 12px;
    bottom: 16px;
  }

  .tool-btn {
    width: 46px;
    height: 46px;
    font-size: 16px;
  }

  .field-row {
    grid-template-columns: 1fr;
  }
}