/* ═══════════════════════════════════════════════════════════
   TK Admin V3 — Vue3 Inspired Modern Theme System
   Features: CSS Variables, Multi-Theme, Responsive, Tech-feel
   ═══════════════════════════════════════════════════════════ */

/* ── Theme Variables ─────────────────────────────────────── */
:root {
  /* Layout */
  --sidebar-w: 240px;
  --topbar-h: 60px;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-xl: 20px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,.06);
  --shadow-md: 0 4px 12px rgba(0,0,0,.08);
  --shadow-lg: 0 10px 40px rgba(0,0,0,.12);
  --transition: .25s cubic-bezier(.4,0,.2,1);
  --font: 'Inter','PingFang SC','Microsoft YaHei',system-ui,sans-serif;
}

/* ══ Theme: Tech Blue (Default) ═══════════════════════════ */
[data-theme="blue"], :root {
  --bg-base: #f0f2f5;
  --bg-card: #ffffff;
  --bg-sidebar: linear-gradient(180deg, #0c1929 0%, #0a1628 50%, #0d1f3c 100%);
  --bg-topbar: rgba(255,255,255,.85);
  --bg-hover: rgba(99,102,241,.04);
  --bg-active: rgba(99,102,241,.1);
  --bg-input: #ffffff;
  --border-color: #e2e8f0;
  --border-light: #f1f5f9;
  --text-primary: #1e293b;
  --text-secondary: #64748b;
  --text-muted: #94a3b8;
  --text-inverse: #ffffff;
  --primary: #6366f1;
  --primary-light: #818cf8;
  --primary-dark: #4f46e5;
  --primary-bg: rgba(99,102,241,.08);
  --success: #10b981;
  --success-bg: rgba(16,185,129,.08);
  --warning: #f59e0b;
  --warning-bg: rgba(245,158,11,.08);
  --danger: #ef4444;
  --danger-bg: rgba(239,68,68,.08);
  --info: #06b6d4;
  --info-bg: rgba(6,182,212,.08);
  --purple: #8b5cf6;
  --purple-bg: rgba(139,92,246,.08);
  --sidebar-text: #94a3b8;
  --sidebar-text-active: #e0e7ff;
  --sidebar-accent: #6366f1;
  --sidebar-border: rgba(255,255,255,.06);
  --sidebar-hover: rgba(255,255,255,.04);
  --glow: 0 0 20px rgba(99,102,241,.15);
  --card-border: 1px solid #e2e8f0;
  --backdrop-blur: blur(12px);
}

/* ══ Theme: Cyber Dark ════════════════════════════════════ */
[data-theme="dark"] {
  --bg-base: #0f1117;
  --bg-card: #1a1d2e;
  --bg-sidebar: linear-gradient(180deg, #0d0f1a 0%, #111427 100%);
  --bg-topbar: rgba(26,29,46,.9);
  --bg-hover: rgba(99,102,241,.08);
  --bg-active: rgba(99,102,241,.15);
  --bg-input: #232740;
  --border-color: #2a2e42;
  --border-light: #1f2338;
  --text-primary: #e2e8f0;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --text-inverse: #ffffff;
  --primary: #818cf8;
  --primary-light: #a5b4fc;
  --primary-dark: #6366f1;
  --primary-bg: rgba(129,140,248,.12);
  --success: #34d399;
  --success-bg: rgba(52,211,153,.12);
  --warning: #fbbf24;
  --warning-bg: rgba(251,191,36,.12);
  --danger: #f87171;
  --danger-bg: rgba(248,113,113,.12);
  --info: #22d3ee;
  --info-bg: rgba(34,211,238,.12);
  --purple: #a78bfa;
  --purple-bg: rgba(167,139,250,.12);
  --sidebar-text: #64748b;
  --sidebar-text-active: #c7d2fe;
  --sidebar-accent: #818cf8;
  --sidebar-border: rgba(255,255,255,.04);
  --sidebar-hover: rgba(255,255,255,.03);
  --glow: 0 0 30px rgba(129,140,248,.2);
  --card-border: 1px solid #2a2e42;
  --backdrop-blur: blur(12px);
  --shadow-sm: 0 1px 3px rgba(0,0,0,.2);
  --shadow-md: 0 4px 12px rgba(0,0,0,.3);
  --shadow-lg: 0 10px 40px rgba(0,0,0,.4);
}
[data-theme="dark"] input[type=text],[data-theme="dark"] input[type=number],[data-theme="dark"] input[type=date],
[data-theme="dark"] input[type=email],[data-theme="dark"] input[type=password],[data-theme="dark"] select,[data-theme="dark"] textarea {
  background: var(--bg-input); color: var(--text-primary); border-color: var(--border-color);
}
[data-theme="dark"] th { background: #1f2338; color: var(--text-secondary); }
[data-theme="dark"] tbody tr:hover { background: rgba(99,102,241,.04); }
[data-theme="dark"] .modal { background: #1a1d2e; }
[data-theme="dark"] .modal-header,.modal-footer { border-color: var(--border-color); }
[data-theme="dark"] code { background: #232740; }

/* ══ Theme: Emerald Tech ══════════════════════════════════ */
[data-theme="green"] {
  --bg-base: #f0fdf4;
  --bg-card: #ffffff;
  --bg-sidebar: linear-gradient(180deg, #052e16 0%, #064e3b 100%);
  --bg-topbar: rgba(255,255,255,.88);
  --bg-hover: rgba(16,185,129,.04);
  --bg-active: rgba(16,185,129,.1);
  --bg-input: #ffffff;
  --border-color: #d1fae5;
  --border-light: #ecfdf5;
  --text-primary: #064e3b;
  --text-secondary: #047857;
  --text-muted: #6ee7b7;
  --primary: #10b981;
  --primary-light: #34d399;
  --primary-dark: #059669;
  --primary-bg: rgba(16,185,129,.08);
  --success: #10b981;
  --success-bg: rgba(16,185,129,.08);
  --warning: #f59e0b;
  --warning-bg: rgba(245,158,11,.08);
  --danger: #ef4444;
  --danger-bg: rgba(239,68,68,.08);
  --info: #06b6d4;
  --info-bg: rgba(6,182,212,.08);
  --purple: #8b5cf6;
  --purple-bg: rgba(139,92,246,.08);
  --sidebar-text: #a7f3d0;
  --sidebar-text-active: #ecfdf5;
  --sidebar-accent: #34d399;
  --sidebar-border: rgba(255,255,255,.08);
  --sidebar-hover: rgba(255,255,255,.05);
  --glow: 0 0 20px rgba(16,185,129,.15);
  --card-border: 1px solid #d1fae5;
}

/* ══ Theme: Violet Night ══════════════════════════════════ */
[data-theme="purple"] {
  --bg-base: #faf5ff;
  --bg-card: #ffffff;
  --bg-sidebar: linear-gradient(180deg, #1e1035 0%, #2d1b69 100%);
  --bg-topbar: rgba(255,255,255,.88);
  --bg-hover: rgba(139,92,246,.04);
  --bg-active: rgba(139,92,246,.1);
  --bg-input: #ffffff;
  --border-color: #e9d5ff;
  --border-light: #f5f3ff;
  --text-primary: #3b0764;
  --text-secondary: #6b21a8;
  --text-muted: #a78bfa;
  --primary: #8b5cf6;
  --primary-light: #a78bfa;
  --primary-dark: #7c3aed;
  --primary-bg: rgba(139,92,246,.08);
  --success: #10b981;
  --success-bg: rgba(16,185,129,.08);
  --warning: #f59e0b;
  --warning-bg: rgba(245,158,11,.08);
  --danger: #ef4444;
  --danger-bg: rgba(239,68,68,.08);
  --info: #06b6d4;
  --info-bg: rgba(6,182,212,.08);
  --purple: #8b5cf6;
  --purple-bg: rgba(139,92,246,.08);
  --sidebar-text: #c4b5fd;
  --sidebar-text-active: #f5f3ff;
  --sidebar-accent: #a78bfa;
  --sidebar-border: rgba(255,255,255,.08);
  --sidebar-hover: rgba(255,255,255,.05);
  --glow: 0 0 20px rgba(139,92,246,.15);
  --card-border: 1px solid #e9d5ff;
}

/* ── Base Reset ──────────────────────────────────────────── */
*,*::before,*::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  font-size: 14px;
  color: var(--text-primary);
  background: var(--bg-base);
  min-height: 100vh;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
a { color: var(--primary); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--primary-dark); text-decoration: none; }
input,select,textarea,button { font-family: inherit; font-size: 14px; outline: none; }
table { width: 100%; border-collapse: collapse; }
th,td { padding: 12px 14px; text-align: left; border-bottom: 1px solid var(--border-light); white-space: nowrap; }
th { background: var(--bg-base); font-weight: 600; color: var(--text-secondary); font-size: 12px; text-transform: uppercase; letter-spacing: .3px; }
tbody tr { transition: background var(--transition); }
tbody tr:hover { background: var(--bg-hover); }

/* ── Form Elements ───────────────────────────────────────── */
input[type=text],input[type=number],input[type=date],input[type=email],
input[type=password],input[type=tel],input[type=url],input[type=search],
input:not([type]),select,textarea {
  height: 40px;
  border: 1.5px solid var(--border-color);
  border-radius: 8px;
  padding: 0 14px;
  width: 100%;
  background: var(--bg-input);
  color: var(--text-primary);
  font-size: 14px;
  line-height: 40px;
  transition: border-color .2s ease, box-shadow .2s ease, background .2s ease;
  box-shadow: 0 1px 2px rgba(0,0,0,.04);
}
textarea {
  height: auto;
  min-height: 80px;
  padding: 10px 14px;
  line-height: 1.6;
  resize: vertical;
}
select {
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  padding-right: 40px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 16 16' fill='none'%3E%3Cpath d='M4 6l4 4 4-4' stroke='%236366f1' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  background-size: 16px;
  background-color: var(--bg-input);
  cursor: pointer;
  position: relative;
}
select:hover {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 16 16' fill='none'%3E%3Cpath d='M4 6l4 4 4-4' stroke='%234f46e5' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
}
select:focus {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 16 16' fill='none'%3E%3Cpath d='M4 10l4-4 4 4' stroke='%236366f1' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
}
select option {
  padding: 10px 14px;
  font-size: 14px;
  background: var(--bg-card);
  color: var(--text-primary);
}
select option:checked {
  background: var(--primary-bg);
  color: var(--primary);
  font-weight: 600;
}
select:invalid,
select option[value=""],
select option[value="0"] { color: var(--text-muted); }
select:not(:invalid) { color: var(--text-primary); }

/* ── Custom Dropdown (JS-enhanced select) ─────────────────── */
.cdd-wrap {
  position: relative; display: inline-block; width: 100%;
}
.cdd-trigger {
  height: 40px; display: flex; align-items: center;
  padding: 0 38px 0 14px; width: 100%;
  border: 1.5px solid var(--border-color); border-radius: 8px;
  background: var(--bg-input); color: var(--text-primary);
  font-size: 14px; cursor: pointer; user-select: none;
  transition: border-color .2s, box-shadow .2s;
  box-shadow: 0 1px 2px rgba(0,0,0,.04);
  position: relative; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.cdd-trigger::after {
  content: ''; position: absolute; right: 12px; top: 50%;
  width: 16px; height: 16px; transform: translateY(-50%);
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 16 16' fill='none'%3E%3Cpath d='M4 6l4 4 4-4' stroke='%236366f1' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") no-repeat center;
  transition: transform .25s cubic-bezier(.4,0,.2,1);
}
.cdd-wrap.open .cdd-trigger::after { transform: translateY(-50%) rotate(180deg); }
.cdd-trigger:hover { border-color: var(--primary-light); }
.cdd-wrap.open .cdd-trigger {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-bg), 0 1px 2px rgba(0,0,0,.04);
}
.cdd-trigger .cdd-placeholder { color: var(--text-muted); }

.cdd-dropdown {
  position: absolute; top: calc(100% + 6px); left: 0; right: 0;
  background: var(--bg-card); border: 1.5px solid var(--border-color);
  border-radius: 10px; box-shadow: 0 12px 36px rgba(0,0,0,.12), 0 4px 12px rgba(0,0,0,.06);
  z-index: 999; overflow: hidden;
  opacity: 0; transform: translateY(-8px) scale(.97);
  pointer-events: none;
  transition: all .2s cubic-bezier(.4,0,.2,1);
}
.cdd-wrap.open .cdd-dropdown {
  opacity: 1; transform: translateY(0) scale(1); pointer-events: auto;
}
.cdd-search {
  padding: 10px 12px; border-bottom: 1px solid var(--border-light);
}
.cdd-search input {
  height: 34px !important; font-size: 13px !important;
  border: 1.5px solid var(--border-light) !important; border-radius: 6px !important;
  padding: 0 10px 0 32px !important;
  background: var(--bg-base) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2'%3E%3Ccircle cx='11' cy='11' r='8'/%3E%3Cpath d='m21 21-4.35-4.35'/%3E%3C/svg%3E") no-repeat 10px center !important;
  background-size: 14px !important;
  width: 100%;
}
.cdd-list {
  max-height: 220px; overflow-y: auto; padding: 4px;
}
.cdd-list::-webkit-scrollbar { width: 5px; }
.cdd-list::-webkit-scrollbar-track { background: transparent; }
.cdd-list::-webkit-scrollbar-thumb { background: var(--border-color); border-radius: 3px; }
.cdd-item {
  padding: 9px 12px; font-size: 13px;
  border-radius: 6px; cursor: pointer; color: var(--text-primary);
  transition: all .15s ease;
  display: flex; align-items: center; gap: 8px;
}
.cdd-item:hover { background: var(--primary-bg); color: var(--primary); }
.cdd-item.active {
  background: linear-gradient(90deg, rgba(99,102,241,.15), rgba(99,102,241,.06));
  color: var(--primary); font-weight: 700;
  border-left: 3px solid var(--primary);
  padding-left: 9px;
  box-shadow: inset 0 0 0 1px rgba(99,102,241,.1);
}
.cdd-item.active::before {
  content: '✓'; font-size: 13px; font-weight: 800; color: var(--primary);
  background: rgba(99,102,241,.12); border-radius: 50%;
  width: 18px; height: 18px; display: flex; align-items: center; justify-content: center;
}
.cdd-item.disabled { opacity: .4; pointer-events: none; }
.cdd-empty {
  padding: 20px 12px; text-align: center;
  font-size: 13px; color: var(--text-muted);
}
.toolbar .cdd-wrap { width: 140px; }
.toolbar .cdd-trigger { height: 36px; font-size: 13px; border-radius: 8px; }

/* hover */
input[type=text]:hover,input[type=number]:hover,input[type=date]:hover,
input[type=email]:hover,input[type=password]:hover,input[type=tel]:hover,
input[type=url]:hover,input[type=search]:hover,input:not([type]):hover,
select:hover,textarea:hover {
  border-color: var(--primary-light);
}

/* focus */
input[type=text]:focus,input[type=number]:focus,input[type=date]:focus,
input[type=email]:focus,input[type=password]:focus,input[type=tel]:focus,
input[type=url]:focus,input[type=search]:focus,input:not([type]):focus,
select:focus,textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-bg), 0 1px 2px rgba(0,0,0,.04);
  background: var(--bg-card);
}

/* placeholder */
input::placeholder,textarea::placeholder {
  color: var(--text-muted);
  font-weight: 400;
  opacity: .7;
}

/* disabled / readonly */
input:disabled,select:disabled,textarea:disabled,
input[readonly],select[readonly],textarea[readonly] {
  background: var(--bg-base);
  color: var(--text-muted);
  cursor: not-allowed;
  opacity: .7;
}

/* date input icon color fix */
input[type=date]::-webkit-calendar-picker-indicator {
  opacity: .5;
  cursor: pointer;
  transition: opacity .2s;
}
input[type=date]::-webkit-calendar-picker-indicator:hover { opacity: .8; }

/* file input */
input[type=file] {
  height: auto;
  padding: 8px 12px;
  font-size: 13px;
  line-height: 1.5;
  cursor: pointer;
  border-style: dashed;
}
input[type=file]:hover { border-color: var(--primary); background: var(--primary-bg); }
input[type=file]::file-selector-button {
  background: var(--primary);
  color: #fff;
  border: none;
  padding: 4px 12px;
  border-radius: 5px;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  margin-right: 10px;
  transition: background .2s;
}
input[type=file]::file-selector-button:hover { background: var(--primary-dark); }

/* ── Buttons ─────────────────────────────────────────────── */
button, a.btn {
  display: inline-flex; align-items: center; gap: 5px;
  height: 38px; padding: 0 16px;
  border-radius: var(--radius-sm); border: none;
  cursor: pointer; font-size: 13px; font-weight: 500;
  white-space: nowrap; text-decoration: none;
  transition: all var(--transition);
  position: relative; overflow: hidden;
}
button::after, a.btn::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(rgba(255,255,255,.1), transparent);
  opacity: 0; transition: opacity var(--transition);
}
button:hover::after, a.btn:hover::after { opacity: 1; }

button.primary, a.btn-primary, .btn-primary, .btn.btn-primary { background: var(--primary); color: #fff; box-shadow: 0 2px 8px rgba(99,102,241,.3); }
button.primary:hover, a.btn-primary:hover, .btn-primary:hover { background: var(--primary-dark); transform: translateY(-1px); box-shadow: 0 4px 14px rgba(99,102,241,.4); }
button.success, a.btn-success, .btn-success, .btn.btn-success { background: var(--success); color: #fff; box-shadow: 0 2px 8px rgba(16,185,129,.3); }
button.success:hover, a.btn-success:hover, .btn-success:hover { background: #059669; transform: translateY(-1px); }
button.danger, a.btn-danger, .btn-danger, .btn.btn-danger { background: var(--danger); color: #fff; box-shadow: 0 2px 8px rgba(239,68,68,.3); }
button.danger:hover, a.btn-danger:hover, .btn-danger:hover { background: #dc2626; transform: translateY(-1px); }
button.warn, a.btn-warn, .btn-warn { background: var(--warning); color: #fff; }
button.warn:hover, a.btn-warn:hover, .btn-warn:hover { background: #d97706; transform: translateY(-1px); }
button.secondary, a.btn-secondary, .btn-secondary { background: var(--text-secondary); color: #fff; }
button.secondary:hover, a.btn-secondary:hover, .btn-secondary:hover { background: #475569; }
button.light, a.btn-light, .btn-light, .btn.btn-light { background: var(--bg-card); color: var(--text-primary); border: 1px solid var(--border-color); }
button.light:hover, a.btn-light:hover, .btn-light:hover { background: var(--bg-hover); border-color: var(--primary); color: var(--primary); }
button.sm, .sm { height: 30px; padding: 0 10px; font-size: 12px; border-radius: 5px; }
.btn { display: inline-flex; align-items: center; gap: 5px; height: 38px; padding: 0 16px; border-radius: var(--radius-sm); border: none; cursor: pointer; font-size: 13px; font-weight: 500; white-space: nowrap; text-decoration: none; transition: all var(--transition); position: relative; overflow: hidden; }

/* ── Layout ──────────────────────────────────────────────── */
.layout { display: flex; min-height: 100vh; }

/* Sidebar */
.sidebar {
  width: var(--sidebar-w); min-height: 100vh;
  background: var(--bg-sidebar);
  flex-shrink: 0; display: flex; flex-direction: column;
  position: fixed; top: 0; left: 0; bottom: 0; z-index: 200;
  overflow-y: auto; overflow-x: hidden;
  border-right: 1px solid var(--sidebar-border);
  transition: transform var(--transition), width var(--transition);
}
.sidebar-logo {
  padding: 20px 18px; border-bottom: 1px solid var(--sidebar-border);
  display: flex; align-items: center; gap: 12px;
}
.sidebar-logo .logo-icon {
  width: 38px; height: 38px;
  background: linear-gradient(135deg, var(--primary), var(--purple));
  border-radius: 10px; display: flex; align-items: center; justify-content: center;
  color: #fff; font-size: 14px; font-weight: 800; flex-shrink: 0;
  box-shadow: 0 4px 12px rgba(99,102,241,.4);
}
.sidebar-logo .logo-text { color: #fff; font-size: 15px; font-weight: 700; line-height: 1.3; }
.sidebar-logo .logo-text small { display: block; color: var(--sidebar-text); font-size: 11px; font-weight: 400; }
.sidebar nav { flex: 1; padding: 10px 0; overflow-y: auto; }
.nav-section {
  padding: 12px 20px 6px; font-size: 15px; color: rgba(148,163,184,.7);
  text-transform: uppercase; letter-spacing: 1.2px; font-weight: 700;
  cursor: pointer; display: flex; align-items: center; justify-content: space-between;
  user-select: none;
  transition: color .3s ease, background .3s ease, transform .15s ease;
  margin-top: 2px;
  border-top: 1px solid var(--sidebar-border);
  border-radius: 6px;
}
.nav-section:first-child { border-top: none; margin-top: 0; }
.nav-section:hover { color: var(--sidebar-text-active); background: rgba(99,102,241,.04); }
.nav-section:active { transform: scale(.97); }
.nav-section::after {
  content: ''; width: 16px; height: 16px; flex-shrink: 0;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 16 16' fill='none'%3E%3Cpath d='M4 6l4 4 4-4' stroke='%2394a3b8' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") no-repeat center;
  transition: transform .35s cubic-bezier(.34,1.56,.64,1);
}
.nav-section.collapsed::after { transform: rotate(-90deg); }
.nav-group {
  overflow: hidden; max-height: 300px;
  transition: max-height .35s cubic-bezier(.4,0,.2,1), opacity .25s ease;
  opacity: 1;
}
.nav-group.collapsed {
  max-height: 0 !important; opacity: 0;
}
.sidebar nav a {
  display: flex; align-items: center; gap: 12px;
  padding: 11px 20px; color: var(--sidebar-text);
  font-size: 15px; font-weight: 500; letter-spacing: .2px;
  transition: all .25s cubic-bezier(.4,0,.2,1), padding-left .2s ease, transform .15s ease;
  border-left: 3px solid transparent; margin: 2px 8px 2px 0;
  border-radius: 0 8px 8px 0;
  position: relative;
}
.sidebar nav a:hover {
  background: var(--sidebar-hover); color: var(--sidebar-text-active);
  padding-left: 24px;
}
.sidebar nav a:active { transform: scale(.97); }
.sidebar nav a.active {
  background: var(--bg-active); color: var(--sidebar-accent);
  border-left-color: var(--sidebar-accent); font-weight: 700;
  box-shadow: inset 3px 0 12px rgba(99,102,241,.1);
}
.sidebar nav a .nav-icon {
  width: 22px; text-align: center; flex-shrink: 0; font-size: 17px;
  transition: transform .25s cubic-bezier(.34,1.56,.64,1);
}
.sidebar nav a:hover .nav-icon { transform: scale(1.15); }
.sidebar-footer {
  padding: 14px 18px; border-top: 1px solid var(--sidebar-border);
  font-size: 11px; color: var(--text-muted);
}

/* Main content */
.main {
  margin-left: var(--sidebar-w); flex: 1;
  display: flex; flex-direction: column; min-height: 100vh;
  transition: margin-left var(--transition);
}
.topbar {
  background: var(--bg-topbar);
  backdrop-filter: var(--backdrop-blur);
  -webkit-backdrop-filter: var(--backdrop-blur);
  border-bottom: 1px solid var(--border-color);
  padding: 0 28px; height: var(--topbar-h);
  display: flex; align-items: center; justify-content: space-between;
  position: sticky; top: 0; z-index: 100;
}
.topbar-title { font-size: 17px; font-weight: 700; color: var(--text-primary); }
.topbar-right { display: flex; align-items: center; gap: 16px; }
.topbar-user { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--text-secondary); }
.notif-badge { background: var(--danger); color: #fff; border-radius: 10px; font-size: 11px; padding: 2px 7px; min-width: 20px; text-align: center; animation: pulse 2s infinite; }
@keyframes pulse { 0%,100%{opacity:1} 50%{opacity:.6} }
.content { padding: 24px 28px; flex: 1; animation: contentIn .35s cubic-bezier(.4,0,.2,1); }
@keyframes contentIn { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }

/* Mobile hamburger */
.mobile-toggle {
  display: none; background: none; border: none;
  font-size: 22px; cursor: pointer; color: var(--text-primary);
  padding: 6px; border-radius: var(--radius-sm);
}
.mobile-toggle:hover { background: var(--bg-hover); }
.sidebar-overlay {
  display: none; position: fixed; inset: 0;
  background: rgba(0,0,0,.5); z-index: 199;
  backdrop-filter: blur(4px);
}

/* ── Stat Cards ──────────────────────────────────────────── */
.stat-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 16px; margin-bottom: 22px; }
.stat-card {
  background: var(--bg-card); border-radius: var(--radius-md);
  padding: 20px 22px; border: var(--card-border);
  position: relative; overflow: hidden;
  transition: all var(--transition);
}
.stat-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.stat-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  border-radius: var(--radius-md) var(--radius-md) 0 0;
}
.stat-card .sc-label { font-size: 12px; color: var(--text-secondary); margin-bottom: 8px; font-weight: 500; text-transform: uppercase; letter-spacing: .3px; }
.stat-card .sc-value { font-size: 28px; font-weight: 800; line-height: 1; }
.stat-card .sc-sub { font-size: 12px; color: var(--text-muted); margin-top: 8px; }
.stat-card .sc-icon { position: absolute; right: 18px; top: 50%; transform: translateY(-50%); font-size: 38px; opacity: .08; }
.sc-blue::before { background: var(--primary); } .sc-blue .sc-value { color: var(--primary); }
.sc-green::before { background: var(--success); } .sc-green .sc-value { color: var(--success); }
.sc-purple::before { background: var(--purple); } .sc-purple .sc-value { color: var(--purple); }
.sc-orange::before { background: var(--warning); } .sc-orange .sc-value { color: var(--warning); }
.sc-red::before { background: var(--danger); } .sc-red .sc-value { color: var(--danger); }
.sc-cyan::before { background: var(--info); } .sc-cyan .sc-value { color: var(--info); }

/* ── Panel ───────────────────────────────────────────────── */
.panel {
  background: var(--bg-card); border-radius: var(--radius-md);
  border: var(--card-border); margin-bottom: 18px;
  transition: box-shadow var(--transition);
}
.panel:hover { box-shadow: var(--shadow-sm); }
.panel-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 20px; border-bottom: 1px solid var(--border-light);
}
.panel-title { font-size: 15px; font-weight: 700; color: var(--text-primary); }
.panel-title small { font-size: 13px; font-weight: 400; color: var(--text-muted); margin-left: 8px; }
.panel-body { padding: 18px 20px; }
.panel-table { padding: 0; }
.panel-table table { border-bottom: none; }
.panel-table th:first-child,.panel-table td:first-child { padding-left: 20px; }
.panel-table th:last-child,.panel-table td:last-child { padding-right: 20px; }

/* ── Toolbar ─────────────────────────────────────────────── */
.toolbar {
  display: flex; align-items: center; gap: 10px;
  padding: 16px 20px; flex-wrap: wrap;
  border-bottom: 1px solid var(--border-light);
}
.toolbar input { width: 200px; height: 36px; font-size: 13px; border-radius: 8px; }
.toolbar select { width: 140px; height: 36px; font-size: 13px; border-radius: 8px; }
.toolbar-right { margin-left: auto; display: flex; gap: 8px; }

/* ── Form Grid ───────────────────────────────────────────── */
.form-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 18px 20px; }
.form-grid.col2 { grid-template-columns: repeat(2,1fr); }
.form-grid.col1 { grid-template-columns: 1fr; }
.form-item { display: flex; flex-direction: column; gap: 7px; }
.form-item label {
  font-size: 13px; color: var(--text-secondary); font-weight: 600;
  display: flex; align-items: center; gap: 4px;
  letter-spacing: .2px;
}
.form-item label span[style*="color:red"],
.form-item label .required { color: var(--danger); font-size: 14px; line-height: 1; }
.form-item.span2 { grid-column: span 2; }
.form-item.span3 { grid-column: span 3; }
.form-actions { display: flex; gap: 8px; padding-top: 8px; grid-column: span 3; }
.form-hint {
  font-size: 12px; color: var(--text-muted); margin-top: 2px;
  padding-left: 2px; line-height: 1.4;
}

/* ── Badges ──────────────────────────────────────────────── */
.badge {
  display: inline-flex; align-items: center; padding: 3px 10px;
  border-radius: var(--radius-xl); font-size: 12px; font-weight: 600;
  letter-spacing: .2px;
}
.badge-green { background: var(--success-bg); color: var(--success); }
.badge-red { background: var(--danger-bg); color: var(--danger); }
.badge-yellow { background: var(--warning-bg); color: var(--warning); }
.badge-blue { background: var(--primary-bg); color: var(--primary); }
.badge-gray { background: var(--bg-base); color: var(--text-muted); }
.badge-orange { background: var(--warning-bg); color: #ea580c; }
.badge-purple { background: var(--purple-bg); color: var(--purple); }

/* ── Tags ────────────────────────────────────────────────── */
.tag { display: inline-block; padding: 2px 10px; border-radius: 4px; font-size: 12px; font-weight: 600; }
.tag-normal { background: var(--primary-bg); color: var(--primary); }
.tag-ent { background: var(--purple-bg); color: var(--purple); }
.tag-food { background: var(--warning-bg); color: #b45309; }
.tag-fashion { background: rgba(236,72,153,.08); color: #db2777; }
.tag-l1 { background: var(--success-bg); color: var(--success); }
.tag-l2 { background: var(--primary-bg); color: var(--primary); }
.tag-l3 { background: var(--warning-bg); color: var(--warning); }
.tag-l4 { background: var(--danger-bg); color: #ea580c; }
.tag-l5 { background: var(--danger-bg); color: var(--danger); }
.tag-prov { background: var(--purple-bg); color: var(--purple); }
.tag-city { background: var(--primary-bg); color: var(--primary); }
.tag-dist { background: var(--success-bg); color: var(--success); }
.tag-g1 { background: var(--danger-bg); color: var(--danger); font-weight: 700; }
.tag-g2 { background: var(--warning-bg); color: #b45309; }
.tag-g3 { background: var(--success-bg); color: var(--success); }

/* Agent tree */
.tree-indent-0 { padding-left: 0; }
.tree-indent-1 { padding-left: 24px; }
.tree-indent-2 { padding-left: 48px; }
.tree-connector-1::before { content: "├─ "; color: var(--text-muted); font-size: 13px; }
.tree-connector-2::before { content: "└─ "; color: var(--text-muted); font-size: 13px; }

/* ── Code Tag ──────────────────────────────────────────────── */
code {
  font-family: 'JetBrains Mono', 'Fira Code', 'SF Mono', Consolas, monospace;
  font-size: 12px; font-weight: 500;
  background: linear-gradient(135deg, var(--primary-bg), rgba(99,102,241,.04));
  color: var(--primary-dark);
  padding: 3px 8px; border-radius: 5px;
  border: 1px solid rgba(99,102,241,.12);
  letter-spacing: .3px;
  white-space: nowrap;
}

/* ── Table Scroll & Sticky Header ─────────────────────────── */
.panel-table { overflow-x: auto; }
.panel-table table thead th { position: sticky; top: 0; z-index: 2; background: var(--bg-base); }
.panel-table::-webkit-scrollbar { height: 6px; }
.panel-table::-webkit-scrollbar-track { background: transparent; }
.panel-table::-webkit-scrollbar-thumb { background: var(--border-color); border-radius: 3px; }
.panel-table::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

/* ── Table Utils ─────────────────────────────────────────── */
.num { text-align: right; font-variant-numeric: tabular-nums; }
.money { font-weight: 700; letter-spacing: -.3px; }
.money-green { color: var(--success); font-weight: 700; }
.money-red { color: var(--danger); font-weight: 700; }
.hint { color: var(--text-muted); font-size: 13px; }
.actions { white-space: nowrap; display: flex; gap: 5px; align-items: center; }
.empty { text-align: center; color: var(--text-muted); padding: 48px 0; }
.rank { display: inline-flex; align-items: center; justify-content: center; width: 24px; height: 24px; border-radius: 50%; font-size: 12px; font-weight: 700; background: var(--bg-base); color: var(--text-secondary); }
.rank-1 { background: #fbbf24; color: #7c2d12; } .rank-2 { background: #9ca3af; color: #fff; } .rank-3 { background: #cd7c3e; color: #fff; }

/* ── Upload ──────────────────────────────────────────────── */
.upload-zone {
  border: 2px dashed var(--border-color); border-radius: var(--radius-md);
  padding: 24px; text-align: center; color: var(--text-muted);
  font-size: 13px; cursor: pointer; transition: all var(--transition);
}
.upload-zone:hover { border-color: var(--primary); color: var(--primary); background: var(--primary-bg); }

/* ── Alert ───────────────────────────────────────────────── */
.alert {
  padding: 14px 18px; border-radius: var(--radius-md);
  margin-bottom: 18px; font-size: 14px; font-weight: 500;
  display: flex; align-items: center; gap: 10px;
  animation: alertIn .4s cubic-bezier(.4,0,.2,1);
  border-left: 4px solid transparent;
  box-shadow: 0 2px 8px rgba(0,0,0,.04);
}
@keyframes alertIn { from { opacity: 0; transform: translateY(-12px) scale(.98); } to { opacity: 1; transform: none; } }
.alert-success { background: var(--success-bg); color: #065f46; border: 1px solid rgba(16,185,129,.15); border-left: 4px solid var(--success); }
.alert-error { background: var(--danger-bg); color: #991b1b; border: 1px solid rgba(239,68,68,.15); border-left: 4px solid var(--danger); }
.alert-info { background: var(--info-bg); color: #155e75; border: 1px solid rgba(6,182,212,.15); border-left: 4px solid var(--info); }
.alert-warn { background: var(--warning-bg); color: #92400e; border: 1px solid rgba(245,158,11,.15); border-left: 4px solid var(--warning); }

/* ── Modal ───────────────────────────────────────────────── */
.modal-overlay {
  display: none; position: fixed; inset: 0;
  background: rgba(0,0,0,.5); z-index: 1000;
  align-items: center; justify-content: center;
  backdrop-filter: blur(4px);
}
.modal-overlay.open { display: flex; }
.modal {
  background: var(--bg-card); border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg), var(--glow);
  width: 480px; max-width: calc(100vw - 32px);
  max-height: 90vh; overflow-y: auto;
  animation: modalIn .25s cubic-bezier(.4,0,.2,1);
  border: var(--card-border);
}
@keyframes modalIn { from { opacity: 0; transform: scale(.95) translateY(-10px); } to { opacity: 1; transform: none; } }
.modal-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 20px 24px 16px; border-bottom: 1px solid var(--border-light);
}
.modal-header h3 { font-size: 16px; font-weight: 700; color: var(--text-primary); margin: 0; }
.modal-close {
  background: none; border: none; font-size: 22px; color: var(--text-muted);
  cursor: pointer; padding: 4px 8px; border-radius: var(--radius-sm);
  transition: all var(--transition);
}
.modal-close:hover { background: var(--danger-bg); color: var(--danger); transform: rotate(90deg); }
.modal-body { padding: 24px 28px; }
.modal-body .form-grid { gap: 18px 16px; }
.modal-body .form-item { gap: 6px; }
.modal-body .form-item label { font-size: 13px; margin-bottom: 0; }
.modal-body input,
.modal-body select { height: 38px; font-size: 13px; }
.modal-body textarea { font-size: 13px; }
.modal-footer {
  padding: 16px 28px 20px; display: flex; justify-content: flex-end; gap: 10px;
  border-top: 1px solid var(--border-light);
  background: var(--bg-base);
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
}

/* ── Option Tabs ─────────────────────────────────────────── */
.opt-tabs { display: flex; gap: 4px; margin-bottom: 18px; border-bottom: 2px solid var(--border-light); padding-bottom: 0; }
.opt-tab {
  padding: 10px 20px; font-size: 13px; font-weight: 600;
  color: var(--text-muted); cursor: pointer;
  border-radius: var(--radius-sm) var(--radius-sm) 0 0;
  border: none; background: none;
  border-bottom: 2px solid transparent; margin-bottom: -2px;
  transition: all var(--transition);
}
.opt-tab.active { color: var(--primary); border-bottom-color: var(--primary); background: var(--primary-bg); }
.opt-tab:hover:not(.active) { background: var(--bg-hover); color: var(--text-primary); }
.opt-panel { display: none; } .opt-panel.active { display: block; }

/* ── Option Btns ─────────────────────────────────────────── */
.opt-actions { display: flex; gap: 6px; align-items: center; }
.btn-icon { padding: 4px 10px; font-size: 12px; border-radius: 5px; border: none; cursor: pointer; transition: all var(--transition); }
.btn-icon.edit { background: var(--primary-bg); color: var(--primary); } .btn-icon.edit:hover { background: var(--primary); color: #fff; }
.btn-icon.del { background: var(--danger-bg); color: var(--danger); } .btn-icon.del:hover { background: var(--danger); color: #fff; }
.btn-icon.tog { background: var(--success-bg); color: var(--success); } .btn-icon.tog:hover { background: var(--success); color: #fff; }

/* ── Misc Utils ──────────────────────────────────────────── */
.divider { height: 1px; background: var(--border-light); margin: 16px 0; }
.text-center { text-align: center; } .text-right { text-align: right; }
.flex { display: flex; align-items: center; } .flex-between { justify-content: space-between; }
.gap8 { gap: 8px; } .gap4 { gap: 4px; }
.mt4 { margin-top: 4px; } .mt8 { margin-top: 8px; } .mt12 { margin-top: 12px; } .mt16 { margin-top: 16px; }
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.grid3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 18px; }
.w100 { width: 100%; }

/* ── Checkbox ────────────────────────────────────────────── */
input[type=checkbox] {
  width: 17px; height: 17px; accent-color: var(--primary);
  cursor: pointer; border-radius: 4px;
  border: 1.5px solid var(--border-color);
  transition: all .15s ease;
  position: relative;
}
input[type=checkbox]:hover { border-color: var(--primary-light); box-shadow: 0 0 0 3px var(--primary-bg); }
input[type=checkbox]:checked { background: var(--primary); border-color: var(--primary); }

/* ── Radio ──────────────────────────────────────────────── */
input[type=radio] {
  width: 17px; height: 17px; accent-color: var(--primary);
  cursor: pointer; border-radius: 50%;
  border: 1.5px solid var(--border-color);
  transition: all .15s ease;
}
input[type=radio]:hover { border-color: var(--primary-light); box-shadow: 0 0 0 3px var(--primary-bg); }
input[type=radio]:checked { border-color: var(--primary); }

/* ── Switch ──────────────────────────────────────────────── */
.switch { position: relative; display: inline-flex; align-items: center; width: 44px; height: 24px; flex-shrink: 0; }
.switch input { opacity: 0; width: 0; height: 0; position: absolute; }
.slider {
  position: absolute; cursor: pointer; inset: 0;
  background: var(--border-color); transition: all .3s cubic-bezier(.4,0,.2,1);
  border-radius: 24px;
}
.slider::before {
  position: absolute; content: ''; height: 18px; width: 18px;
  left: 3px; bottom: 3px; background: #fff;
  transition: all .3s cubic-bezier(.4,0,.2,1);
  border-radius: 50%; box-shadow: 0 1px 4px rgba(0,0,0,.15);
}
.switch:hover .slider { background: #cbd5e1; }
input:checked + .slider { background: var(--primary); box-shadow: 0 2px 8px rgba(99,102,241,.3); }
input:checked + .slider::before { transform: translateX(20px); }
.switch:hover input:checked + .slider { background: var(--primary-dark); }

/* ── Login ───────────────────────────────────────────────── */
.login-wrap {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, #0f172a 0%, #1e1b4b 50%, #312e81 100%);
  position: relative; overflow: hidden;
}
.login-wrap::before {
  content: ''; position: absolute; width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(99,102,241,.15) 0%, transparent 70%);
  top: -200px; right: -200px; border-radius: 50%;
}
.login-wrap::after {
  content: ''; position: absolute; width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(139,92,246,.1) 0%, transparent 70%);
  bottom: -150px; left: -150px; border-radius: 50%;
}
.login-box {
  background: rgba(255,255,255,.95); backdrop-filter: blur(20px);
  border-radius: var(--radius-lg); padding: 48px 40px;
  width: 400px; box-shadow: 0 25px 80px rgba(0,0,0,.3);
  position: relative; z-index: 1;
  border: 1px solid rgba(255,255,255,.2);
}
.login-logo { text-align: center; margin-bottom: 32px; }
.login-logo h1 { font-size: 24px; font-weight: 800; color: #1e293b; }
.login-logo p { color: #64748b; font-size: 13px; margin-top: 6px; }

/* ── Pagination ──────────────────────────────────────────── */
.pagination { display: flex; align-items: center; gap: 4px; padding: 16px 20px; justify-content: flex-end; }
.pagination a,.pagination span {
  display: inline-flex; align-items: center; justify-content: center;
  width: 34px; height: 34px; border-radius: var(--radius-sm);
  font-size: 13px; border: 1px solid var(--border-color); color: var(--text-secondary);
  transition: all var(--transition);
}
.pagination a:hover { background: var(--primary-bg); border-color: var(--primary); color: var(--primary); }
.pagination .active { background: var(--primary); border-color: var(--primary); color: #fff; }

/* ── Info Block ──────────────────────────────────────────── */
.info-block { display: grid; grid-template-columns: repeat(3,1fr); gap: 14px 24px; padding: 4px 0; }
.info-item .info-label { font-size: 12px; color: var(--text-muted); margin-bottom: 4px; font-weight: 500; }
.info-item .info-value { font-size: 14px; color: var(--text-primary); font-weight: 600; }
.info-item.span2 { grid-column: span 2; } .info-item.span3 { grid-column: span 3; }

/* ── Notif/Status Dots ───────────────────────────────────── */
.notif-dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; background: var(--danger); }
.section-title { font-size: 12px; font-weight: 700; color: var(--text-secondary); text-transform: uppercase; letter-spacing: .6px; margin-bottom: 14px; padding-bottom: 8px; border-bottom: 1px solid var(--border-light); }

/* ── Theme Switcher ──────────────────────────────────────── */
.theme-switcher {
  display: flex; align-items: center; gap: 6px;
}
.theme-btn {
  width: 22px; height: 22px; border-radius: 50%;
  border: 2px solid var(--border-color); cursor: pointer;
  transition: all var(--transition); position: relative;
}
.theme-btn:hover { transform: scale(1.2); }
.theme-btn.active { border-color: var(--text-primary); box-shadow: 0 0 0 2px var(--bg-card), 0 0 0 4px var(--text-primary); }
.theme-btn[data-theme="blue"] { background: linear-gradient(135deg, #6366f1, #8b5cf6); }
.theme-btn[data-theme="dark"] { background: linear-gradient(135deg, #1a1d2e, #2d3748); }
.theme-btn[data-theme="green"] { background: linear-gradient(135deg, #10b981, #059669); }
.theme-btn[data-theme="purple"] { background: linear-gradient(135deg, #8b5cf6, #a855f7); }

/* ── Vue3 Enhanced Table ─────────────────────────────────── */
tbody tr:nth-child(even) { background: var(--bg-base); }
tbody tr:nth-child(even):hover { background: var(--bg-hover); }
td { color: var(--text-primary); }
td a { font-weight: 600; }
td code { background: var(--bg-base); padding: 2px 8px; border-radius: 4px; font-size: 12px; color: var(--primary); font-family: 'SF Mono','Cascadia Code',monospace; }

/* ── Gradient Stat Cards ─────────────────────────────────── */
.stat-card-gradient {
  border-radius: var(--radius-md); padding: 22px 24px; color: #fff;
  position: relative; overflow: hidden; transition: all var(--transition);
}
.stat-card-gradient:hover { transform: translateY(-3px); box-shadow: 0 8px 25px rgba(0,0,0,.15); }
.stat-card-gradient::after {
  content: ''; position: absolute; top: -30%; right: -15%; width: 140px; height: 140px;
  border-radius: 50%; background: rgba(255,255,255,.08);
}
.stat-card-gradient::before {
  content: ''; position: absolute; bottom: -40%; left: -10%; width: 100px; height: 100px;
  border-radius: 50%; background: rgba(255,255,255,.05);
}
.scg-blue { background: linear-gradient(135deg, #6366f1, #818cf8); }
.scg-green { background: linear-gradient(135deg, #10b981, #34d399); }
.scg-purple { background: linear-gradient(135deg, #8b5cf6, #a78bfa); }
.scg-orange { background: linear-gradient(135deg, #f59e0b, #fbbf24); }
.scg-red { background: linear-gradient(135deg, #ef4444, #f87171); }
.scg-cyan { background: linear-gradient(135deg, #06b6d4, #22d3ee); }
.stat-card-gradient .scg-label { font-size: 13px; opacity: .85; margin-bottom: 8px; font-weight: 500; }
.stat-card-gradient .scg-value { font-size: 30px; font-weight: 800; line-height: 1; }
.stat-card-gradient .scg-sub { font-size: 12px; opacity: .7; margin-top: 8px; }
.stat-card-gradient .scg-icon { position: absolute; right: 20px; top: 50%; transform: translateY(-50%); font-size: 48px; opacity: .15; }

/* ── Avatar ──────────────────────────────────────────────── */
.avatar {
  width: 36px; height: 36px; border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--purple));
  display: inline-flex; align-items: center; justify-content: center;
  color: #fff; font-size: 13px; font-weight: 700; flex-shrink: 0;
}
.avatar-sm { width: 28px; height: 28px; font-size: 11px; }
.avatar-lg { width: 48px; height: 48px; font-size: 18px; }
.avatar-group { display: flex; }
.avatar-group .avatar { margin-left: -8px; border: 2px solid var(--bg-card); }
.avatar-group .avatar:first-child { margin-left: 0; }

/* ── Breadcrumb ──────────────────────────────────────────── */
.breadcrumb {
  display: flex; align-items: center; gap: 6px; font-size: 13px;
  color: var(--text-muted); margin-bottom: 16px;
}
.breadcrumb a { color: var(--text-secondary); font-weight: 500; }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb .sep { color: var(--border-color); }
.breadcrumb .current { color: var(--text-primary); font-weight: 600; }

/* ── Progress Bar ────────────────────────────────────────── */
.progress { height: 6px; background: var(--border-light); border-radius: 3px; overflow: hidden; }
.progress-bar {
  height: 100%; border-radius: 3px; transition: width .6s ease;
  background: linear-gradient(90deg, var(--primary), var(--primary-light));
}
.progress-bar.green { background: linear-gradient(90deg, var(--success), #34d399); }
.progress-bar.orange { background: linear-gradient(90deg, var(--warning), #fbbf24); }
.progress-bar.red { background: linear-gradient(90deg, var(--danger), #f87171); }

/* ── Quick Action Cards ──────────────────────────────────── */
.quick-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 12px; }
.quick-card {
  display: flex; flex-direction: column; align-items: center; gap: 10px;
  padding: 20px 12px; border-radius: var(--radius-md);
  background: var(--bg-card); border: var(--card-border);
  text-decoration: none; color: var(--text-primary);
  transition: all var(--transition); cursor: pointer; text-align: center;
}
.quick-card:hover {
  transform: translateY(-3px); box-shadow: var(--shadow-md);
  border-color: var(--primary); color: var(--primary);
}
.quick-card .qc-icon { font-size: 28px; line-height: 1; }
.quick-card .qc-label { font-size: 13px; font-weight: 600; }
.quick-card .qc-desc { font-size: 11px; color: var(--text-muted); }

/* ── Status Dot ──────────────────────────────────────────── */
.status-dot {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 13px; font-weight: 500;
}
.status-dot::before {
  content: ''; width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0;
}
.status-dot.online::before { background: var(--success); box-shadow: 0 0 6px var(--success); }
.status-dot.offline::before { background: var(--text-muted); }
.status-dot.warning::before { background: var(--warning); box-shadow: 0 0 6px var(--warning); }
.status-dot.error::before { background: var(--danger); box-shadow: 0 0 6px var(--danger); }

/* ── Timeline ────────────────────────────────────────────── */
.timeline { position: relative; padding-left: 24px; }
.timeline::before { content: ''; position: absolute; left: 8px; top: 0; bottom: 0; width: 2px; background: var(--border-light); }
.timeline-item { position: relative; padding-bottom: 20px; }
.timeline-item::before {
  content: ''; position: absolute; left: -20px; top: 4px;
  width: 12px; height: 12px; border-radius: 50%; border: 2px solid var(--primary);
  background: var(--bg-card); z-index: 1;
}
.timeline-item .tl-time { font-size: 12px; color: var(--text-muted); margin-bottom: 4px; }
.timeline-item .tl-content { font-size: 13px; color: var(--text-primary); }

/* ── Number Counter ──────────────────────────────────────── */
.counter { font-variant-numeric: tabular-nums; letter-spacing: -.5px; }

/* ── Tooltip ─────────────────────────────────────────────── */
[data-tip] { position: relative; cursor: help; }
[data-tip]:hover::after {
  content: attr(data-tip); position: absolute; bottom: 100%; left: 50%;
  transform: translateX(-50%); padding: 6px 12px;
  background: var(--text-primary); color: var(--bg-card);
  font-size: 12px; white-space: nowrap; border-radius: 6px;
  box-shadow: var(--shadow-md); z-index: 50;
  animation: tipIn .15s ease;
}
@keyframes tipIn { from { opacity: 0; transform: translateX(-50%) translateY(4px); } to { opacity: 1; transform: translateX(-50%); } }

/* ── Enhanced Empty State ────────────────────────────────── */
.empty-state {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  padding: 48px 24px; color: var(--text-muted);
}
.empty-state .es-icon { font-size: 48px; margin-bottom: 12px; opacity: .3; }
.empty-state .es-text { font-size: 14px; font-weight: 500; }
.empty-state .es-sub { font-size: 12px; margin-top: 4px; }

/* ── Sidebar Enhanced ────────────────────────────────────── */
.sidebar nav a { position: relative; }
.sidebar nav a.active::after {
  content: ''; position: absolute; right: 12px; top: 50%; transform: translateY(-50%);
  width: 6px; height: 6px; border-radius: 50%; background: var(--sidebar-accent);
  box-shadow: 0 0 8px var(--sidebar-accent);
}

/* ── Topbar Enhanced ─────────────────────────────────────── */
.topbar-title::before {
  content: ''; display: inline-block; width: 4px; height: 16px;
  background: var(--primary); border-radius: 2px; margin-right: 10px;
  vertical-align: middle;
}

/* ── Data Label (key-value pairs) ────────────────────────── */
.data-row { display: flex; align-items: center; padding: 10px 0; border-bottom: 1px solid var(--border-light); }
.data-row:last-child { border-bottom: none; }
.data-label { width: 120px; flex-shrink: 0; font-size: 13px; color: var(--text-secondary); font-weight: 600; }
.data-value { flex: 1; font-size: 14px; color: var(--text-primary); }

/* ── Skeleton Loading ────────────────────────────────────── */
.skeleton { background: linear-gradient(90deg, var(--border-light) 25%, var(--bg-base) 50%, var(--border-light) 75%); background-size: 200% 100%; animation: shimmer 1.5s infinite; border-radius: 4px; }
@keyframes shimmer { 0% { background-position: 200% 0; } 100% { background-position: -200% 0; } }

/* ── Floating Label Input ────────────────────────────────── */
.fl-group { position: relative; margin-bottom: 4px; }
.fl-group input { padding-top: 16px; padding-bottom: 4px; }
.fl-group label {
  position: absolute; left: 12px; top: 50%; transform: translateY(-50%);
  font-size: 14px; color: var(--text-muted); pointer-events: none;
  transition: all var(--transition);
}
.fl-group input:focus + label, .fl-group input:not(:placeholder-shown) + label {
  top: 8px; font-size: 11px; color: var(--primary); font-weight: 600;
}

/* ══════════════════════════════════════════════════════════
   RESPONSIVE — Mobile & Tablet
   ══════════════════════════════════════════════════════════ */
@media (max-width: 1024px) {
  .stat-cards { grid-template-columns: repeat(2, 1fr); }
  .form-grid { grid-template-columns: repeat(2, 1fr); }
  .form-grid.col2 { grid-template-columns: repeat(2, 1fr); }
  .info-block { grid-template-columns: repeat(2, 1fr); }
  .grid2 { grid-template-columns: 1fr; }
  .grid3 { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  :root { --sidebar-w: 260px; }
  
  .sidebar {
    transform: translateX(-100%);
    box-shadow: none;
  }
  .sidebar.open {
    transform: translateX(0);
    box-shadow: 10px 0 40px rgba(0,0,0,.3);
  }
  .sidebar-overlay.open { display: block; }
  .mobile-toggle { display: flex; align-items: center; justify-content: center; }
  
  .main { margin-left: 0; }
  .topbar { padding: 0 16px; height: 54px; }
  .topbar-title { font-size: 15px; }
  .content { padding: 16px; }
  
  .stat-cards { grid-template-columns: repeat(2, 1fr); gap: 10px; }
  .stat-card { padding: 14px 16px; }
  .stat-card .sc-value { font-size: 22px; }
  
  .form-grid, .form-grid.col2 { grid-template-columns: 1fr; }
  .form-item.span2, .form-item.span3, .form-actions { grid-column: span 1; }
  
  .toolbar { flex-direction: column; align-items: stretch; gap: 8px; }
  .toolbar input, .toolbar select { width: 100%; }
  .toolbar-right { margin-left: 0; justify-content: flex-end; }
  
  .panel-table { overflow-x: auto; }
  table { min-width: 600px; }
  
  .modal { width: calc(100vw - 24px); max-height: 85vh; border-radius: var(--radius-md); }
  .modal-body { padding: 16px 18px; }
  .modal-header { padding: 16px 18px 12px; }
  .modal-footer { padding: 12px 18px 14px; }
  
  .info-block { grid-template-columns: 1fr; }
  .grid2, .grid3 { grid-template-columns: 1fr; }
  
  .login-box { width: calc(100vw - 32px); padding: 36px 28px; }
}

@media (max-width: 480px) {
  .stat-cards { grid-template-columns: 1fr; }
  .topbar-user span.desktop-only { display: none; }
  .actions { flex-wrap: wrap; }
}

/* ── Scrollbar ───────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border-color); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

/* ── Selection ───────────────────────────────────────────── */
::selection { background: var(--primary-bg); color: var(--primary-dark); }

/* ── Print ───────────────────────────────────────────────── */
@media print {
  .sidebar, .topbar, .toolbar-right, .theme-switcher, .mobile-toggle { display: none !important; }
  .main { margin-left: 0 !important; }
  .content { padding: 0 !important; }
}