/* Core styles for toolbox-v2 */
:root {
  --bg: #f5f5f7;
  --surface: #fff;
  --border: #e5e5ea;
  --text: #1d1d1f;
  --text-muted: #86868b;
  --primary: #0071e3;
  --primary-hover: #0060c0;
  --header-h: 52px;
  --radius:12px;
  --radius-sm:6px;
  --primary-light:rgba(0,113,227,0.08);
  --surface-hover:#f0f0f2;
  --text-secondary:#86868b;
  --sidebar-bg:#1d1d1f;

  --dd-bg: #fff;
  --dd-hover: #f0f0f2;
  --shadow: 0 1px 3px rgba(0,0,0,0.06);
  --shadow-lg: 0 4px 12px rgba(0,0,0,0.1);
}
[data-theme="dark"] {
  --bg: #1c1c1e;
  --surface: #2c2c2e;
  --border: #38383a;
  --text: #f5f5f7;
  --text-muted: #636366;
  --primary: #0a84ff;
  --primary-hover: #409cff;
  --dd-bg: #2c2c2e;
  --dd-hover: #3a3a3c;
  --radius:12px;
  --radius-sm:6px;
  --primary-light:rgba(10,132,255,0.15);
  --surface-hover:#3a3a3c;
  --text-secondary:#636366;
  --sidebar-bg:#1c1c1e;
  --shadow: 0 1px 3px rgba(0,0,0,0.2);
  --shadow-lg: 0 4px 12px rgba(0,0,0,0.3);

}
* { margin:0; padding:0; box-sizing:border-box; }
body { font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Noto Sans SC",sans-serif; background:var(--bg); color:var(--text); min-height:100vh; }

.top-header { position:fixed; top:0; left:0; right:0; height:var(--header-h); background:var(--surface); border-bottom:1px solid var(--border); z-index:1000; }
.header-inner { max-width:1200px; margin:0 auto; display:flex; align-items:center; height:100%; padding:0 16px; }
.header-left { display:flex; align-items:center; gap:4px; flex:1; }
.logo { display:flex; align-items:center; gap:8px; text-decoration:none; color:var(--text); font-size:18px; font-weight:700; white-space:nowrap; }
.logo i { color:var(--primary); font-size:22px; }
.header-nav { flex:0 1 auto; display:flex; gap:0; align-items:stretch; height:100%; }
.header-right { display:flex; align-items:center; gap:6px; flex:1; justify-content:flex-end; height:100%; }
.header-btn { display:inline-flex; align-items:center; justify-content:center; gap:4px; height:34px; min-width:34px; box-sizing:border-box; background:none; border:1px solid var(--border); border-radius:6px; padding:0 10px; cursor:pointer; color:var(--text); font-size:14px; line-height:1; white-space:nowrap; vertical-align:middle; }



/* ===== Tool modules ===== */
.tool-box {
  background:var(--surface); border:1px solid var(--border);
  border-radius:var(--radius); overflow:hidden; margin-bottom:24px;
}
.tool-box .tb-hd {
  padding:12px 20px; border-bottom:1px solid var(--border);
  display:flex; align-items:center; justify-content:space-between;
}
.tool-box .tb-hd h2, .tool-box .tb-hd h1 { margin:0; font-size:15px; font-weight:600; color:var(--text); }
.tool-box .tb-bd { padding:16px 20px; }
.tool-box .tb-ft {
  padding:10px 20px; border-top:1px solid var(--border);
  background:var(--surface-hover); font-size:12px; color:var(--text-muted);
}

.form-group { margin-bottom:12px; }
.form-group label {
  display:block; font-size:11px; font-weight:600; color:var(--text-secondary);
  margin-bottom:4px; text-transform:uppercase; letter-spacing:0.5px;
}
.form-input, .form-textarea, .form-select {
  width:100%; padding:8px 12px;
  border:1px solid var(--border); border-radius:var(--radius-sm);
  font-size:13px; background:var(--bg); color:var(--text);
  font-family:inherit; transition:border-color .15s;
}
.form-input:focus, .form-textarea:focus, .form-select:focus {
  outline:none; border-color:var(--primary); box-shadow:0 0 0 3px var(--primary-light);
}
.form-textarea { min-height:80px; resize:vertical; font-family:monospace; }
.form-row { display:grid; grid-template-columns:1fr 1fr; gap:12px; }
.form-row-3 { display:grid; grid-template-columns:repeat(3,1fr); gap:12px; }
.form-btn {
  padding:8px 20px; border-radius:20px;
  font-size:13px; font-weight:600; border:none; cursor:pointer;
  display:inline-flex; align-items:center; gap:6px; transition:all .15s;
}
.form-btn-primary { background:var(--primary); color:#fff; }
.form-btn-primary:hover { background:var(--primary-hover); }
.form-btn-secondary { background:var(--surface-hover); color:var(--text); border:1px solid var(--border); }
.form-btn-secondary:hover { background:var(--border); }

.code-block {
  background:var(--sidebar-bg); color:#fff;
  border-radius:var(--radius-sm); padding:14px;
  font-family:monospace; font-size:12px; overflow-x:auto; white-space:pre-wrap; margin:8px 0;
}

.result-box {
  background:var(--surface); border:1px solid var(--border);
  border-radius:var(--radius-sm); padding:12px; margin-top:8px; overflow-x:auto;
}

/* Hamburger button */
.hamburger-btn { display:none; background:none; border:none; font-size:22px; cursor:pointer; color:var(--text); padding:4px 6px; line-height:1; }

/* Desktop dropdown navigation */
.nav-dd { position:relative; display:flex; align-items:stretch; }
.nav-dd-trigger { display:flex; align-items:center; gap:6px; padding:0 14px; text-decoration:none; color:var(--text); font-size:14px; white-space:nowrap; cursor:pointer; transition:background .15s; border-radius:0; }
.nav-dd-trigger i { font-size:13px; width:16px; text-align:center; }
.nav-dd .dd-arrow { font-size:10px; margin-left:2px; transition:transform .2s; }
.nav-dd.active .dd-arrow { transform:rotate(180deg); }

.nav-dd-menu { display:none; position:absolute; top:100%; left:0; min-width:150px; background:var(--dd-bg); border:1px solid var(--border); border-radius:8px; box-shadow:0 4px 16px rgba(0,0,0,.1); padding:6px 0; z-index:1001; }
.nav-dd.active .nav-dd-menu { display:block; }
.nav-dd-item { display:flex; align-items:center; gap:6px; padding:8px 16px; text-decoration:none; color:var(--text); font-size:13px; white-space:nowrap; transition:background .12s; }
.nav-dd-item i { font-size:12px; width:16px; text-align:center; }
.nav-dd-item:hover { background:var(--dd-hover); }

/* Mobile overlay nav */
.mobile-nav-overlay { display:none; position:fixed; top:0; left:0; right:0; bottom:0; background:rgba(0,0,0,.4); z-index:2000; }
.nav-open .mobile-nav-overlay { display:block; }
.mobile-nav-panel { position:fixed; top:0; left:0; bottom:0; width:280px; max-width:85vw; background:var(--surface); overflow-y:auto; transform:translateX(-100%); transition:transform .25s ease; box-shadow:2px 0 12px rgba(0,0,0,.15); }
.nav-open .mobile-nav-panel { transform:translateX(0); }
.mobile-nav-header { display:flex; align-items:center; justify-content:space-between; padding:14px 16px; border-bottom:1px solid var(--border); }
.mobile-nav-title-header { font-weight:600; font-size:16px; }
.mobile-nav-close { background:none; border:none; font-size:24px; cursor:pointer; color:var(--text); padding:0 4px; }
.mobile-nav-list { padding:8px 0; }
.m-nav-group { margin-bottom:4px; }
.m-nav-title { display:flex; align-items:center; gap:6px; padding:10px 16px 4px; font-size:12px; font-weight:600; color:var(--text-muted); letter-spacing:.5px; }
.m-nav-title i { font-size:12px; width:14px; text-align:center; }
.m-nav-item { display:flex; align-items:center; gap:6px; padding:10px 16px 10px 24px; text-decoration:none; color:var(--text); font-size:14px; transition:background .12s; }
.m-nav-item i { font-size:13px; width:16px; text-align:center; }
.m-nav-item:hover { background:var(--dd-hover); }

/* Main content */
.main-content { padding-top:calc(var(--header-h) + 16px); max-width:1200px; margin:0 auto; padding-left:20px; padding-right:20px; min-height:calc(100vh - var(--header-h) - 50px); }

/* Welcome hero — matching original layout */
.welcome-hero {
  background: linear-gradient(135deg, var(--primary) 0%, #5856d6 100%);
  border-radius: 14px;
  padding: 40px 48px;
  position: relative;
  overflow: hidden;
  margin-bottom: 28px;
  text-align:center;
}
.welcome-hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: rgba(255,255,255,.06);
}
.welcome-hero::after {
  content: '';
  position: absolute;
  bottom: -40%;
  left: -10%;
  width: 250px;
  height: 250px;
  border-radius: 50%;
  background: rgba(255,255,255,.04);
}
.welcome-inner { position:relative; z-index:1; }
.welcome-inner h1 { font-size:28px; font-weight:700; margin:0 0 8px; color:#fff; }
.welcome-inner h1 i { margin-right:8px; }
.welcome-inner p { font-size:15px; opacity:.85; margin:0 0 20px; line-height:1.5; color:#fff; }
.welcome-badges { display:flex; gap:12px; justify-content:center; flex-wrap:wrap; }
.welcome-badge {
  display:inline-flex; align-items:center; gap:6px;
  padding:6px 16px; border-radius:20px;
  background:rgba(255,255,255,.2);
  color:#fff; font-size:13px; font-weight:500;
  backdrop-filter:blur(4px);
}
.welcome-badge i { font-size:14px; }

/* Category section */
.cat-section { margin-bottom:28px; }
.cat-section-title { font-size:16px; font-weight:600; margin-bottom:8px; padding-bottom:6px; border-bottom:1px solid var(--border); }
.cat-section-title i { margin-right:6px; font-size:14px; }

/* Tool grid */
.tool-grid { display:grid; grid-template-columns:repeat(auto-fill,minmax(200px,1fr)); gap:12px; }
.tool-card {
  background:var(--surface); border:1px solid var(--border); border-radius:10px;
  padding:16px; cursor:pointer; transition:all .2s ease;
  box-shadow:var(--shadow); display:flex; align-items:flex-start; gap:14px;
}
.tool-card:hover { border-color:var(--primary); box-shadow:var(--shadow-lg); transform:translateY(-2px); }
a.tool-card { text-decoration:none; color:inherit; }
.tool-card-icon {
  flex-shrink:0; width:40px; height:40px; border-radius:10px;
  background:var(--primary-light); color:var(--primary);
  display:flex; align-items:center; justify-content:center; font-size:17px;
}
.tool-card-body { flex:1; min-width:0; }
.tool-card-body h3 { font-size:14px; font-weight:600; margin-bottom:4px; }
.tool-card-body p { font-size:12px; color:var(--text-muted); line-height:1.4; }

.cat-section-title { font-size:17px; font-weight:600; margin-bottom:10px; padding-bottom:8px; border-bottom:1px solid var(--border); display:flex; align-items:center; gap:8px; }
.cat-section-title i { font-size:15px; }
.cat-count {
  font-size:11px; font-weight:500; color:var(--text-muted);
  background:var(--surface-hover); padding:1px 8px; border-radius:10px;
  margin-left:auto; line-height:1.6;
}

/* Empty state */
.empty-state { text-align:center; padding:80px 20px; color:var(--text-muted); }
.empty-state h2 { font-size:20px; margin-bottom:8px; color:var(--text); }

/* Footer */
.site-footer { text-align:center; padding:20px; font-size:12px; color:var(--text-muted); border-top:1px solid var(--border); margin-top:40px; }
.footer-links { display:flex; flex-wrap:wrap; justify-content:center; gap:8px 16px; margin-bottom:12px; }
.footer-links a { color:var(--text-muted); text-decoration:none; font-size:12px; transition:color .15s; }
.footer-links a:hover { color:var(--primary); }
.footer-desc { font-size:11px; color:var(--text-muted); margin-bottom:8px; max-width:600px; margin-left:auto; margin-right:auto; line-height:1.5; }

/* Responsive */
@media (max-width:899px) {
  .header-nav { display:none; }
  .hamburger-btn { display:block; }
  .header-inner { gap:6px; }
  .tool-grid { grid-template-columns:repeat(auto-fill,minmax(160px,1fr)); }
  .tool-card { padding:12px; gap:10px; }
  .tool-card-icon { width:34px; height:34px; font-size:14px; border-radius:8px; }
  .welcome-hero { padding:28px 24px; }
  .welcome-inner h1 { font-size:22px; }
  .welcome-inner p { font-size:13px; }
}
/* ===== Feedback Widget ===== */
#fbBtn {
  position:fixed; bottom:24px; right:24px; z-index:9999;
  width:52px; height:52px; border-radius:50%;
  background:var(--primary); color:#fff;
  display:flex; align-items:center; justify-content:center;
  cursor:pointer; font-size:22px;
  box-shadow:0 4px 16px rgba(0,0,0,0.2);
  transition:all .2s;
}
#fbBtn:hover { transform:scale(1.1); box-shadow:0 6px 24px rgba(0,0,0,0.3); }
#fbModal {
  position:fixed; bottom:90px; right:24px; z-index:9998;
  display:none; width:340px;
  max-width:calc(100vw - 48px);
  background:var(--surface); border:1px solid var(--border);
  border-radius:14px; box-shadow:0 12px 40px rgba(0,0,0,0.15);
  overflow:hidden;
}
#fbModal.show { display:block; }
#fbModal.show .form-group { margin-bottom:12px; }
#fbModal.show .form-group label { display:block; font-size:12px; font-weight:600; color:var(--text-muted); margin-bottom:4px; }
#fbModal.show .form-input {
  width:100%; padding:8px 12px; border:1px solid var(--border);
  border-radius:8px; font-size:13px; outline:none;
  background:var(--bg); color:var(--text);
  box-sizing:border-box;
}
#fbModal.show .form-input:focus { border-color:var(--primary); }
#fbModal.show .form-textarea { resize:vertical; min-height:80px; font-family:inherit; }
#fbModal.show .form-btn { width:100%; padding:10px; border-radius:8px; font-size:14px; font-weight:600; cursor:pointer; border:none; }
#fbModal.show .form-btn-primary { background:var(--primary); color:#fff; }
#fbModal.show .form-btn-primary:hover { background:var(--primary-hover); }
#fbModal.show #fbError { color:#e74c3c; font-size:12px; margin-bottom:8px; display:none; }
#fbHeader {
  display:flex; align-items:center; justify-content:space-between;
  padding:14px 18px; font-size:14px; font-weight:600;
  border-bottom:1px solid var(--border); color:var(--text);
}
#fbClose { cursor:pointer; font-size:20px; color:var(--text-muted); }
#fbClose:hover { color:var(--text); }
#fbBody { padding:16px 18px; }

@media (max-width:899px) {
  #fbBtn { width:44px; height:44px; font-size:18px; bottom:16px; right:16px; }
  #fbModal { bottom:70px; right:16px; width:300px; }
}

@media (max-width:599px) {
  .tool-grid { grid-template-columns:repeat(2,1fr); gap:8px; }
  .tool-card { padding:10px; gap:8px; }
  .tool-card-icon { width:30px; height:30px; font-size:13px; border-radius:7px; }
  .tool-card-body h3 { font-size:13px; }
  .main-content { padding-left:12px; padding-right:12px; }
  .welcome-hero { padding:24px 16px; border-radius:10px; }
  .welcome-inner h1 { font-size:20px; }
  .welcome-inner p { font-size:13px; }
  .welcome-badges { gap:8px; }
  .welcome-badge { padding:5px 12px; font-size:12px; }
}



/* ===== Auth Modal ===== */
.modal-overlay {
  display:none; position:fixed; top:0; left:0; right:0; bottom:0;
  background:rgba(0,0,0,0.4); z-index:3000;
  align-items:center; justify-content:center;
}
.modal-overlay.show { display:flex; }
.modal-box {
  background:var(--surface); border-radius:14px;
  padding:28px 32px 24px; width:380px; max-width:90vw;
  box-shadow:0 16px 48px rgba(0,0,0,0.2); position:relative;
}
.modal-box h2 { font-size:20px; font-weight:700; margin-bottom:4px; }
.modal-box .modal-sub { font-size:13px; color:var(--text-muted); margin-bottom:20px; }
.modal-close {
  position:absolute; top:16px; right:16px;
  background:none; border:none; font-size:20px; color:var(--text-muted); cursor:pointer;
  line-height:1;
}
.modal-close:hover { color:var(--text); }
.modal-error { color:#e74c3c; font-size:12px; margin-top:8px; display:none; }
.modal-switch { text-align:center; margin-top:14px; font-size:13px; color:var(--text-muted); }
.modal-switch a { color:var(--primary); cursor:pointer; font-weight:600; }
.modal-switch a:hover { text-decoration:underline; }

/* ===== User Dropdown ===== */

.lang-dropdown { position:relative; display:inline-flex; align-items:center; height:34px; }
.lang-dropdown .dropdown-menu { min-width:130px; }
.lang-check { display:inline-flex; align-items:center; justify-content:center; width:18px; font-size:12px; color:var(--primary); }
.lang-current { background:var(--dd-hover); }
.user-dropdown { position:relative; display:inline-flex; align-items:center; height:34px; }
.user-btn { gap:4px!important; padding:0 8px; }
.dropdown-menu {
  display:none; position:absolute; top:100%; right:0; margin-top:4px;
  min-width:160px; background:var(--surface);
  border:1px solid var(--border); border-radius:10px;
  box-shadow:0 8px 24px rgba(0,0,0,0.12); z-index:2000; overflow:hidden;
}
.dropdown-menu.show { display:block; }
.dropdown-item {
  display:flex; align-items:center; gap:10px; width:100%;
  padding:10px 16px; font-size:13px; font-weight:500; line-height:1.2;
  color:var(--text); background:transparent; border:0; text-align:left;
  font-family:inherit; cursor:pointer; transition:background .12s; appearance:none;
}
.dropdown-item:hover { background:var(--dd-hover); }
.dropdown-divider { height:1px; background:var(--border); margin:4px 0; }

#searchToggle.header-btn { width:34px; padding:0; font-size:15px; }
#langToggle.header-btn, #themeToggle.header-btn, #userBtn.header-btn { height:34px; min-height:34px; max-height:34px; align-self:center; }
#themeToggle.header-btn { width:34px; padding:0; font-size:16px; }
#langToggle.header-btn { width:92px; min-width:92px; max-width:92px; padding:0 8px; overflow:hidden; text-overflow:ellipsis; font-size:13px; }
#userBtn.header-btn i { line-height:1; }

/* ===== Tool Search Overlay ===== */
.search-overlay {
  display: none;
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: var(--bg);
  z-index: 2500;
  flex-direction: column;
}
.search-overlay.show { display: flex; }

.search-overlay-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 20px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  height: 60px;
  flex-shrink: 0;
}

.search-input-wrap {
  flex: 1;
  position: relative;
  display: flex;
  align-items: center;
}

.search-input-icon {
  position: absolute;
  left: 14px;
  font-size: 16px;
  color: var(--text-muted);
  pointer-events: none;
}

.search-input {
  width: 100%;
  height: 44px;
  padding: 0 44px 0 42px;
  border: 1px solid var(--border);
  border-radius: 10px;
  font-size: 16px;
  background: var(--bg);
  color: var(--text);
  font-family: inherit;
  outline: none;
  transition: border-color .15s, box-shadow .15s;
}
.search-input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-light);
}
.search-input::placeholder {
  color: var(--text-muted);
}

.search-input-clear {
  position: absolute;
  right: 10px;
  width: 28px;
  height: 28px;
  display: none;
  align-items: center;
  justify-content: center;
  background: var(--surface-hover);
  border: none;
  border-radius: 50%;
  font-size: 18px;
  line-height: 1;
  color: var(--text-muted);
  cursor: pointer;
  transition: background .12s;
}
.search-input-clear:hover { background: var(--border); }
.search-input-clear.visible { display: flex; }

.search-close-btn {
  flex-shrink: 0;
  height: 34px;
  min-width: 60px;
  padding: 0 16px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: none;
  color: var(--text-muted);
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  font-family: inherit;
  transition: background .12s, color .12s;
}
.search-close-btn:hover {
  background: var(--surface-hover);
  color: var(--text);
}

.search-overlay-body {
  flex: 1;
  overflow-y: auto;
  padding: 20px;
  max-width: 720px;
  width: 100%;
  margin: 0 auto;
}

.search-hint {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 80px 20px;
  color: var(--text-muted);
}
.search-hint i {
  font-size: 48px;
  margin-bottom: 16px;
  opacity: 0.3;
}
.search-hint p { font-size: 15px; }

.search-results {
  display: none;
  flex-direction: column;
  gap: 4px;
}
.search-results.show { display: flex; }

.search-result-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  border-radius: 10px;
  cursor: pointer;
  transition: background .12s;
  text-decoration: none;
  color: var(--text);
  border: 1px solid transparent;
}
.search-result-item:hover,
.search-result-item.highlighted {
  background: var(--primary-light);
  border-color: var(--primary);
}

.search-result-info {
  flex: 1;
  min-width: 0;
}

.search-result-name {
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 2px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.search-result-desc {
  font-size: 12px;
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  line-height: 1.4;
}

.search-result-badge {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  border-radius: 12px;
  font-size: 11px;
  font-weight: 600;
  background: var(--primary-light);
  color: var(--primary);
  white-space: nowrap;
  margin-left: auto;
}

.search-result-count {
  font-size: 12px;
  color: var(--text-muted);
  padding: 0 14px 8px;
}

.search-empty {
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 80px 20px;
  color: var(--text-muted);
}
.search-empty.show { display: flex; }
.search-empty i {
  font-size: 48px;
  margin-bottom: 16px;
  opacity: 0.3;
}
.search-empty p { font-size: 15px; }

/* Mobile search responsiveness */
@media (max-width: 899px) {
  .search-overlay-header {
    padding: 8px 12px;
    height: 54px;
  }
  .search-input {
    height: 40px;
    font-size: 15px;
    padding: 0 40px 0 38px;
  }
  .search-input-icon {
    left: 12px;
    font-size: 14px;
  }
  .search-close-btn {
    min-width: 44px;
    padding: 0 10px;
    font-size: 11px;
  }
  .search-overlay-body { padding: 12px; }
  .search-result-item { padding: 10px 12px; }
}

@media (max-width: 599px) {
  .search-close-btn {
    min-width: 36px;
    padding: 0 8px;
    font-size: 11px;
  }
  .search-result-item { flex-wrap: wrap; gap: 6px; }
  .search-result-badge { margin-left: 0; }
}

/* ── Media processing progress bar ── */
.media-progress-bar {
  width: 100%;
  height: 6px;
  background: var(--border);
  border-radius: 3px;
  overflow: hidden;
}
.media-progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--primary), #27ae60);
  border-radius: 3px;
}
.media-progress-indeterminate {
  width: 100%;
  animation: mediaPulse 1.5s ease-in-out infinite;
}
@keyframes mediaPulse {
  0% { opacity: 0.5; }
  50% { opacity: 1; }
  100% { opacity: 0.5; }
}
.media-progress-hint {
  font-size: 12px;
  color: #e67e22;
  margin-top: 4px;
}