/* ============ CSS VARIABLES ============ */
:root[data-theme="dark"] {
  --bg-primary: #0a0e0a;
  --bg-secondary: #0f1510;
  --bg-card: #111a11;
  --bg-card-hover: #162016;
  --bg-modal: #0d130d;
  --border: #1e3a1e;
  --border-hover: #2d5a2d;
  --accent: #22c55e;
  --accent-dim: #16a34a;
  --accent-glow: rgba(34,197,94,0.15);
  --accent-glow-strong: rgba(34,197,94,0.3);
  --text-primary: #e2f5e2;
  --text-secondary: #7aad7a;
  --text-muted: #3d6b3d;
  --scanline: rgba(34,197,94,0.03);
  --grid-line: rgba(34,197,94,0.04);
}

@font-face {
  font-family: 'Orbitron';
  font-style: normal;
  font-weight: 1000;
  font-display: swap;
  src: url(https://gs.jurieo.com/gemini/fonts-gstatic/s/orbitron/v35/yMJRMIlzdpvBhQQL_Qq7dy0.woff2) format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

/* 隐藏整个页面滚动条（兼容主流浏览器） */
html, body {
  overflow-y: scroll;
  scrollbar-width: none;
  -ms-overflow-style: none;
}
html::-webkit-scrollbar,
body::-webkit-scrollbar {
  display: none;
}

/* ============ RESET & BASE ============ */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { height: 100%; }
body {
  min-height: 100%;
  display: flex;
  flex-direction: column;
  font-family: 'Noto Sans SC', sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  overflow-x: hidden;
  position: relative;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
  z-index: 0;
}

body::after {
  content: '';
  position: fixed;
  inset: 0;
  background: repeating-linear-gradient(
    0deg,
    var(--scanline) 0px,
    var(--scanline) 1px,
    transparent 1px,
    transparent 3px
  );
  pointer-events: none;
  z-index: 1;
}

/* ============ KEYFRAMES ============ */
@keyframes pageFadeIn {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes headerFadeIn {
  from { opacity: 0; transform: translateY(-16px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(18px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes flicker {
  0%,92%,94%,96%,100% { opacity: 1; }
  93%,95% { opacity: 0.85; }
}
@keyframes pulse-badge {
  0%,100% { box-shadow: 0 0 4px var(--accent-glow); }
  50% { box-shadow: 0 0 10px var(--accent-glow-strong); }
}
@keyframes ripple-anim {
  to { transform: scale(4); opacity: 0; }
}

/* ============ TB LOGO ============ */
.tb-logo {
  position: absolute;
  left: 32px;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 101;
  pointer-events: none;
  user-select: none;
}

.tb-img {
  max-height: 36px;
  width: auto;
  object-fit: contain;
}

/* ============ HEADER ============ */
.header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 70px;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  padding: 0 32px;
  z-index: 100;
  background: transparent;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  animation: headerFadeIn 0.55s ease both;
}

.header-brand {
  display: flex;
  align-items: center;
  gap: 14px;
  cursor: pointer;
  user-select: none;
  padding: 8px 14px;
  border-radius: 12px;
  position: relative;
  overflow: hidden;
  transition: background 0.3s ease;
}
.header-brand:hover { background: var(--accent-glow); }

.logo-wrap {
  width: 42px; height: 42px;
  border-radius: 10px;
  border: 1.5px solid var(--accent);
  display: flex; align-items: center; justify-content: center;
  background: var(--accent-glow);
  box-shadow: 0 0 12px var(--accent-glow-strong);
  overflow: hidden;
  position: relative;
  flex-shrink: 0;
  transition: box-shadow 0.3s ease;
}
.logo-wrap:hover { box-shadow: 0 0 20px var(--accent-glow-strong); }

.site-title {
  font-family: 'Orbitron', monospace;
  font-size: 15px;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: 2px;
  line-height: 1.2;
}

/* ============ 版本号行 ============ */
.site-subtitle-wrap {
  display: flex;
  align-items: center;
  gap: 6px;
}

.site-subtitle {
  font-size: 16px;
  color: var(--text-muted);
  font-weight: 400;
  text-transform: uppercase;
  font-family: 'Orbitron', monospace;
  letter-spacing: 1px;
}

/* 版本号编辑按钮（仅管理员可见） */
.version-edit-btn {
  display: none;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  background: none;
  border: 1px solid var(--border-hover);
  border-radius: 4px;
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.25s ease;
  flex-shrink: 0;
  padding: 0;
}
.version-edit-btn .lucide { width: 11px; height: 11px; }
.version-edit-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-glow);
}

.header-controls {
  display: flex; align-items: center; gap: 12px; margin-right: 20px;
}

.admin-badge {
  font-family: 'Orbitron', monospace; font-size: 9px; padding: 3px 8px;
  border-radius: 4px; background: var(--accent-glow); border: 1px solid var(--accent);
  color: var(--accent); letter-spacing: 1px; animation: pulse-badge 2s infinite;
}

/* ============ MAIN ============ */
.main {
  padding-top: 90px; position: relative; z-index: 2; flex: 1; display: flex;
  flex-direction: column; animation: pageFadeIn 0.65s ease 0.1s both;
}
.page-header { text-align: center; padding: 40px 32px 30px; animation: fadeUp 0.6s ease 0.2s both; }
.page-header h1 {
  font-family: 'Orbitron', monospace;
  font-size: clamp(28px, 5vw, 52px);
  font-weight: 1000;
  color: var(--accent);
  letter-spacing: 4px;
  text-shadow: 0 0 30px var(--accent-glow-strong);
  animation: flicker 4s infinite;
}
.page-header p { margin-top: 8px; font-size: 13px; color: var(--text-muted); letter-spacing: 4px; text-transform: uppercase; }

/* ============ TOOLBAR & BUTTONS ============ */
.toolbar {
  display: flex; align-items: center; justify-content: flex-end;
  padding: 0 40px 24px; gap: 12px; animation: fadeUp 0.55s ease 0.25s both;
}
.btn {
  display: inline-flex; align-items: center; gap: 8px; padding: 10px 20px;
  border-radius: 8px; border: 1.5px solid var(--border-hover);
  background: var(--bg-card); color: var(--text-primary);
  font-family: 'Noto Sans SC', sans-serif; font-size: 13px; cursor: pointer;
  position: relative; overflow: hidden;
  transition: border-color 0.25s ease, background 0.25s ease, color 0.25s ease, box-shadow 0.25s ease, opacity 0.25s ease;
}
.btn:hover { border-color: var(--accent); background: var(--accent-glow); color: var(--accent); box-shadow: 0 6px 20px var(--accent-glow-strong); }
.btn-primary { background: var(--accent); border-color: var(--accent); color: #000; font-weight: 700; }
.btn-primary:hover { color: #000; background: var(--accent-dim); box-shadow: 0 6px 24px var(--accent-glow-strong); }
.btn-danger { background: transparent; border-color: #ef4444; color: #ef4444; }
.btn-danger:hover { background: rgba(239,68,68,0.1); border-color: #dc2626; color: #dc2626; box-shadow: 0 6px 20px rgba(239,68,68,0.2); }
.btn .lucide { width: 15px; height: 15px; flex-shrink: 0; }

/* ============ GRID ============ */
.tools-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 20px;
  padding: 0 20px;
  max-width: 1400px;
  margin: 0 auto;
  width: 100%;
  box-sizing: border-box;
  animation: fadeUp 0.6s ease 0.3s both;
}

.tool-card {
  width: 100%;  box-sizing: border-box;
  background: var(--bg-card); border: 1.5px solid var(--border); border-radius: 14px;
  overflow: hidden; cursor: pointer; transition: all 0.3s ease;
}
.tool-card:hover {
  background: var(--bg-card-hover); box-shadow: 0 10px 32px var(--accent-glow-strong), 0 0 0 1px var(--accent);
  border-color: var(--accent); transform: translateY(-2px);
}
.tool-img-wrap {
  width: 100%; height: 188px; background: var(--bg-secondary);
  display: flex; align-items: center; justify-content: center; overflow: hidden; position: relative; transition: background 0.3s ease;
}
.tool-img-wrap img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s cubic-bezier(0.34,1.56,0.64,1); }
.tool-card:hover .tool-img-wrap img { transform: scale(1.08); }
.tool-img-placeholder { font-size: 36px; opacity: 0.4; display: flex; align-items: center; justify-content: center; transition: opacity 0.3s ease; color: var(--text-muted); }
.tool-img-placeholder .lucide { width: 36px; height: 36px; }
.tool-card:hover .tool-img-placeholder { opacity: 0.65; }
.tool-img-wrap::after {
  content: ''; position: absolute; inset: 0; background: linear-gradient(135deg, var(--accent-glow) 0%, transparent 60%);
  opacity: 0; transition: opacity 0.3s ease; pointer-events: none;
}
.tool-card:hover .tool-img-wrap::after { opacity: 1; }
.tool-info { padding: 8px 10px 10px; border-top: 1px solid var(--border); transition: border-color 0.3s ease; }
.tool-card:hover .tool-info { border-color: var(--border-hover); }

.tool-name {
  font-size: 18px; font-weight: 500; color: var(--text-primary); text-align: center;
  display: -webkit-box; -webkit-line-clamp: 1; -webkit-box-orient: vertical; overflow: hidden;
  text-overflow: ellipsis; word-break: break-all; line-height: 1.5; max-height: 3em; transition: color 0.3s ease;
}
.tool-card:hover .tool-name { color: var(--accent); }

/* GN 序号徽章（仅管理员可见） */
.tool-order-badge {
  position: absolute;
  top: 8px;
  left: 8px;
  background: rgba(0, 0, 0, 0.72);
  border: 1px solid var(--accent);
  color: var(--accent);
  font-family: 'Orbitron', monospace;
  font-size: 9px;
  font-weight: 700;
  padding: 3px 7px;
  border-radius: 4px;
  letter-spacing: 1px;
  z-index: 2;
  backdrop-filter: blur(4px);
  pointer-events: none;
}

.empty-state {
  grid-column: 1 / -1; text-align: center; padding: 80px 20px; color: var(--text-muted); animation: fadeUp 0.6s ease both;
}
.empty-state .icon { margin-bottom: 20px; display: flex; justify-content: center; }
.empty-state .icon .lucide { width: 64px; height: 64px; opacity: 0.4; color: var(--text-muted); }
.empty-state p { font-size: 14px; letter-spacing: 2px; }

/* ============ MODAL ============ */
.modal-overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,0.7); backdrop-filter: blur(6px);
  z-index: 200; display: flex; align-items: center; justify-content: center;
  opacity: 0; pointer-events: none; transition: opacity 0.3s ease;
}
.modal-overlay.open { opacity: 1; pointer-events: all; }
.modal {
  background: var(--bg-modal); border: 1.5px solid var(--border-hover); border-radius: 20px;
  padding: 36px; width: 100%; max-width: 420px; box-shadow: 0 20px 60px rgba(0,0,0,0.5), 0 0 40px var(--accent-glow);
  transform: translateY(30px) scale(0.95); opacity: 0; transition: transform 0.4s cubic-bezier(0.34,1.56,0.64,1), opacity 0.35s ease; position: relative;
  max-height: 90vh;
  overflow-y: auto;
  scrollbar-width: none;
}
.modal::-webkit-scrollbar { display: none; }
.modal-overlay.open .modal { transform: translateY(0) scale(1); opacity: 1; }
.modal h2 { font-family: 'Orbitron', monospace; font-size: 18px; font-weight: 700; color: var(--accent); margin-bottom: 28px; letter-spacing: 2px; }
.form-group { margin-bottom: 20px; }
.form-group label { display: block; font-size: 12px; color: var(--text-secondary); letter-spacing: 2px; text-transform: uppercase; margin-bottom: 8px; }
.form-group input[type="text"],
.form-group input[type="password"],
.form-group input[type="number"] {
  width: 100%; padding: 12px 16px; border-radius: 10px; border: 1.5px solid var(--border);
  background: var(--bg-secondary); color: var(--text-primary); font-family: 'Noto Sans SC', sans-serif; font-size: 14px; transition: all 0.25s ease; outline: none;
}
.form-group input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-glow); background: var(--bg-card); }
.form-group input.input-error { border-color: #ef4444 !important; box-shadow: 0 0 0 3px rgba(239,68,68,0.2) !important; }

/* 隐藏 number input 箭头 */
input[type="number"]::-webkit-inner-spin-button,
input[type="number"]::-webkit-outer-spin-button { -webkit-appearance: none; margin: 0; }
input[type="number"] { -moz-appearance: textfield; }

.password-wrapper { position: relative; display: flex; align-items: center; }
.password-wrapper input { padding-right: 40px !important; }
.toggle-password {
  position: absolute; right: 12px; background: none; border: none; color: var(--text-muted);
  cursor: pointer; display: flex; align-items: center; justify-content: center; transition: color 0.3s ease;
}
.toggle-password:hover { color: var(--accent); }
.toggle-password .lucide { width: 18px; height: 18px; }

/* 排序序号 */
.sort-order-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
}
.sort-prefix {
  font-family: 'Orbitron', monospace;
  font-size: 14px;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 3px;
  flex-shrink: 0;
  text-shadow: 0 0 8px var(--accent-glow-strong);
  white-space: nowrap;
}
.sort-order-wrap input[type="number"],
.sort-order-wrap input[type="text"] {
  flex: 1;
}

/* ============ UPLOAD AREA ============ */
.upload-area {
  width: 100%; aspect-ratio: 16/9; border: 2px dashed var(--border-hover); border-radius: 12px;
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 10px;
  cursor: pointer; transition: all 0.3s ease; background: var(--bg-secondary); position: relative; overflow: hidden;
}
.upload-area:hover { border-color: var(--accent); background: var(--accent-glow); }
.upload-area.has-img { border-style: solid; border-color: var(--accent); }
.upload-area img.preview { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; border-radius: 10px; }
.upload-area input[type="file"] { display: none; }
.upload-icon { display: flex; align-items: center; justify-content: center; opacity: 0.5; }
.upload-icon .lucide { width: 32px; height: 32px; color: var(--text-muted); }
.upload-text { font-size: 12px; color: var(--text-muted); letter-spacing: 1px; }

/* 上传进度条 */
@keyframes progress-glow {
  0%, 100% { box-shadow: 0 0 8px var(--accent), 0 0 16px var(--accent-glow-strong); }
  50% { box-shadow: 0 0 16px var(--accent), 0 0 32px var(--accent-glow-strong), 0 0 48px var(--accent-glow); }
}
.upload-progress-wrap {
  width: 100%;
  height: 26px;
  background: var(--bg-secondary);
  border-radius: 8px;
  border: 1px solid var(--border);
  margin-top: 10px;
  position: relative;
  overflow: hidden;
}
.upload-progress-bar {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--accent-dim), var(--accent), #4ade80);
  border-radius: 8px;
  transition: width 0.25s ease;
  position: relative;
}
.upload-progress-bar::after {
  content: '';
  position: absolute;
  top: 0; right: 0;
  width: 40px; height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.25));
  border-radius: 0 8px 8px 0;
}
.upload-progress-wrap.done .upload-progress-bar {
  animation: progress-glow 1.2s ease-in-out infinite;
}
.upload-progress-text {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-family: 'Orbitron', monospace;
  font-size: 10px;
  font-weight: 700;
  color: #000;
  letter-spacing: 1px;
  z-index: 2;
  pointer-events: none;
  text-shadow: 0 1px 2px rgba(255,255,255,0.3);
}
.upload-progress-wrap.done .upload-progress-text {
  color: #fff;
  text-shadow: 0 0 8px var(--accent);
}

.modal-actions { display: flex; gap: 12px; margin-top: 28px; }
.modal-actions .btn { flex: 1; justify-content: center; }
.modal-close {
  position: absolute; top: 16px; right: 16px; width: 32px; height: 32px; border-radius: 8px; border: 1px solid var(--border);
  background: none; color: var(--text-muted); cursor: pointer; display: flex; align-items: center; justify-content: center; transition: all 0.25s ease;
}
.modal-close .lucide { width: 15px; height: 15px; }
.modal-close:hover { border-color: var(--accent); color: var(--accent); background: var(--accent-glow); }

.error-msg {
  font-size: 12px; color: #ef4444; margin-top: 8px; padding: 8px 12px;
  background: rgba(239,68,68,0.1); border-radius: 6px; border: 1px solid rgba(239,68,68,0.3); display: none; transition: opacity 0.25s ease;
}
.error-msg.show { display: block; }

/* ============ TOOL VIEWER ============ */
.tool-viewer {
  position: fixed; inset: 0; z-index: 300; background: var(--bg-primary); display: flex; flex-direction: column; opacity: 0; pointer-events: none; will-change: clip-path, opacity;
}
.tool-viewer.open { pointer-events: all; }
.viewer-topbar {
  display: flex; align-items: center; gap: 16px; padding: 2px 20px; border-bottom: 1px solid var(--border); background: var(--bg-secondary); backdrop-filter: blur(12px); flex-shrink: 0;
}
.back-btn {
  display: flex; align-items: center; gap: 8px; padding: 8px 16px; border-radius: 8px; border: 1.5px solid var(--border-hover); background: var(--bg-card); color: var(--text-primary);
  font-family: 'Noto Sans SC', sans-serif; font-size: 13px; cursor: pointer; flex-shrink: 0; transition: border-color 0.25s ease, color 0.25s ease, background 0.25s ease, box-shadow 0.25s ease;
}
.back-btn:hover { border-color: var(--accent); color: var(--accent); background: var(--accent-glow); box-shadow: 0 4px 16px var(--accent-glow-strong); }
.back-arrow { display: flex; align-items: center; transition: transform 0.25s ease; }
.back-btn:hover .back-arrow { transform: translateX(-3px); }
.viewer-title { font-family: 'Orbitron', monospace; font-size: 14px; color: #16a34a; letter-spacing: 2px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.tool-frame { flex: 1; border: none; width: 100%; background: #fff; opacity: 0; transition: opacity 0.4s ease 0.2s; }
.tool-viewer.frame-ready .tool-frame { opacity: 1; }

/* ============ FOOTER ============ */
.footer {
  text-align: center; padding: 24px 30px 20px; color: var(--text-muted); font-size: 11px; letter-spacing: 2px; position: relative; z-index: 2;
  border-top: 1px solid var(--border); margin-top: auto; background: transparent; transition: border-color 0.3s ease;
}
.footer p { margin-bottom: 6px; }
.footer .email-plain { color: var(--text-secondary); font-size: 11px; letter-spacing: 1px; cursor: default; user-select: text; }

/* ============ RIPPLE ============ */
.ripple {
  position: absolute; border-radius: 50%; background: var(--accent-glow-strong); pointer-events: none; transform: scale(0); animation: ripple-anim 0.6s linear;
}

/* ============ TOAST ============ */
.toast {
  position: fixed; bottom: 80px; left: 50%; transform: translateX(-50%) translateY(20px); background: var(--bg-card); border: 1px solid var(--accent); color: var(--accent);
  padding: 10px 20px; border-radius: 8px; font-size: 13px; letter-spacing: 1px; z-index: 9999; opacity: 0; pointer-events: none; box-shadow: 0 4px 20px var(--accent-glow-strong); white-space: nowrap; transition: opacity 0.3s ease, transform 0.3s ease;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ============ RESPONSIVE ============ */
@media (max-width: 1024px) { .tools-grid { grid-template-columns: repeat(4, 1fr); } }
@media (max-width: 768px) { .tools-grid { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 600px) {
  .tools-grid { grid-template-columns: repeat(2, 1fr); gap: 14px; padding: 0 20px; }
  .toolbar { padding: 0 20px 20px; }
  .page-header { padding: 30px 20px 20px; }
  .header { padding: 0 16px; }
  .modal { padding: 24px; }
  .tool-img-wrap { height: 120px; }
  .tb-logo { left: 16px; }
  .tb-img { max-height: 24px; }
}

.logo-default {
  height: 100%;
}

/* ============ OPEN TYPE TOGGLE ============ */
.open-type-toggle {
  display: flex;
  align-items: center;
  gap: 12px;
}

.open-type-badge {
  font-family: 'Orbitron', monospace;
  font-size: 11px;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 2px;
  min-width: 36px;
  text-align: center;
  text-shadow: 0 0 8px var(--accent-glow-strong);
  transition: color 0.25s ease;
}

.open-type-hint {
  font-size: 11px;
  color: var(--text-muted);
  letter-spacing: 1px;
  transition: color 0.25s ease;
}

.toggle-switch {
  position: relative;
  display: inline-block;
  width: 46px;
  height: 24px;
  flex-shrink: 0;
}
.toggle-switch input {
  opacity: 0;
  width: 0;
  height: 0;
  position: absolute;
}
.toggle-slider {
  position: absolute;
  inset: 0;
  background: var(--bg-secondary);
  border: 1.5px solid var(--border-hover);
  border-radius: 24px;
  cursor: pointer;
  transition: background 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}
.toggle-slider::before {
  content: '';
  position: absolute;
  width: 16px;
  height: 16px;
  left: 3px;
  top: 50%;
  transform: translateY(-50%);
  background: var(--text-muted);
  border-radius: 50%;
  transition: transform 0.3s cubic-bezier(0.34,1.56,0.64,1), background 0.3s ease;
}
.toggle-switch input:checked + .toggle-slider {
  background: var(--accent-glow);
  border-color: var(--accent);
  box-shadow: 0 0 10px var(--accent-glow-strong);
}
.toggle-switch input:checked + .toggle-slider::before {
  transform: translateY(-50%) translateX(22px);
  background: var(--accent);
}