/* ── Reset & Vars ─────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:          #0a0f1e;
  --bg2:         #0f172a;
  --bg3:         #1e293b;
  --border:      rgba(255,255,255,.07);
  --border2:     rgba(255,255,255,.12);
  --text:        #e2e8f0;
  --text-muted:  #64748b;
  --accent:      #3b82f6;
  --accent2:     #6366f1;
  --green:       #22c55e;
  --orange:      #f97316;
  --red:         #ef4444;
  --purple:      #a855f7;
  --sidebar-w:   240px;
  --radius:      10px;
  --font-mono:   'Space Mono', monospace;
  --font-body:   'DM Sans', sans-serif;
}

html, body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 14px;
  min-height: 100vh;
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: #93c5fd; }

/* ── Layout ───────────────────────────────────────────────────────────────── */
.sidebar {
  position: fixed; top: 0; left: 0;
  width: var(--sidebar-w);
  height: 100vh;
  background: var(--bg2);
  border-right: 1px solid var(--border);
  display: flex; flex-direction: column;
  z-index: 100;
}

.sidebar-logo {
  padding: 24px 20px 20px;
  display: flex; align-items: center; gap: 10px;
  border-bottom: 1px solid var(--border);
  font-family: var(--font-mono);
  font-size: 18px;
}
.logo-icon { font-size: 22px; }
.logo-text strong { color: var(--accent); }

.sidebar-menu {
  flex: 1; list-style: none;
  padding: 16px 12px;
  display: flex; flex-direction: column; gap: 4px;
}
.sidebar-menu a {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 12px;
  border-radius: 8px;
  color: var(--text-muted);
  font-weight: 500;
  transition: all .15s;
}
.sidebar-menu a svg {
  width: 18px; height: 18px;
  fill: currentColor;
  flex-shrink: 0;
}
.sidebar-menu a:hover { background: var(--bg3); color: var(--text); }
.sidebar-menu a.active { background: rgba(59,130,246,.15); color: var(--accent); }

.sidebar-footer {
  padding: 16px 20px;
  border-top: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between;
}
.user-badge {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-muted);
}
.logout-btn {
  font-size: 12px;
  color: var(--red);
  padding: 4px 10px;
  border: 1px solid rgba(239,68,68,.3);
  border-radius: 6px;
  transition: all .15s;
}
.logout-btn:hover { background: rgba(239,68,68,.1); color: var(--red); }

.main-wrapper {
  margin-left: var(--sidebar-w);
  min-height: 100vh;
}

.content {
  max-width: 1100px;
  margin: 0 auto;
  padding: 32px 28px;
}
.content.full-page {
  max-width: 100%;
  margin: 0;
  padding: 0;
}

/* ── Alerts ───────────────────────────────────────────────────────────────── */
.alerts { margin-bottom: 20px; display: flex; flex-direction: column; gap: 8px; }
.alert {
  padding: 12px 16px;
  border-radius: var(--radius);
  font-size: 13px;
  border-left: 4px solid;
}
.alert-success { background: rgba(34,197,94,.1);  border-color: var(--green);  color: #86efac; }
.alert-danger   { background: rgba(239,68,68,.1);  border-color: var(--red);   color: #fca5a5; }
.alert-warning  { background: rgba(249,115,22,.1); border-color: var(--orange);color: #fdba74; }
.alert-info     { background: rgba(59,130,246,.1); border-color: var(--accent);color: #93c5fd; }

/* ── Page header ──────────────────────────────────────────────────────────── */
.page-header {
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 12px;
  margin-bottom: 28px;
}
.page-header h1 {
  font-size: 22px;
  font-weight: 600;
  font-family: var(--font-mono);
}
.page-header h1 .muted { color: var(--text-muted); font-weight: 400; }
.header-actions { display: flex; gap: 8px; flex-wrap: wrap; }

/* ── Buttons ──────────────────────────────────────────────────────────────── */
.btn-primary, .btn-secondary, .btn-danger-sm, .btn-sm-success, .btn-warning, .btn-success {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 9px 18px;
  border-radius: 8px;
  font-family: var(--font-body);
  font-size: 13px; font-weight: 500;
  cursor: pointer; border: none;
  transition: all .15s;
  white-space: nowrap;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: #2563eb; color: #fff; }
.btn-secondary { background: var(--bg3); color: var(--text); border: 1px solid var(--border2); }
.btn-secondary:hover { background: #334155; color: var(--text); }
.btn-warning { background: rgba(249,115,22,.15); color: var(--orange); border: 1px solid rgba(249,115,22,.3); }
.btn-warning:hover { background: rgba(249,115,22,.25); }
.btn-success { background: rgba(34,197,94,.15); color: var(--green); border: 1px solid rgba(34,197,94,.3); }
.btn-success:hover { background: rgba(34,197,94,.25); }
.btn-danger-sm { background: rgba(239,68,68,.15); color: var(--red); border: 1px solid rgba(239,68,68,.3); padding: 7px 14px; }
.btn-danger-sm:hover { background: rgba(239,68,68,.25); }
.btn-sm-success { background: rgba(34,197,94,.1); color: var(--green); border: 1px solid rgba(34,197,94,.25); padding: 5px 12px; font-size: 12px; border-radius: 6px; cursor: pointer; }
.full-w { width: 100%; justify-content: center; }
.btn-icon { background: none; border: none; cursor: pointer; font-size: 16px; padding: 4px 6px; border-radius: 6px; transition: background .15s; }
.btn-icon:hover { background: var(--bg3); }
.btn-icon.danger:hover { background: rgba(239,68,68,.15); }
.btn-copy { padding: 6px 12px; background: var(--bg3); color: var(--text); border: 1px solid var(--border2); border-radius: 6px; cursor: pointer; font-size: 12px; white-space: nowrap; }
.btn-copy:hover { background: #334155; }
.btn-search { padding: 8px 16px; background: var(--accent); color: #fff; border: none; border-radius: 8px; cursor: pointer; font-size: 13px; }
.btn-clear { padding: 8px 12px; background: var(--bg3); color: var(--text-muted); border: 1px solid var(--border2); border-radius: 8px; font-size: 13px; }

/* ── Stats grid ───────────────────────────────────────────────────────────── */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}
.stats-grid.sm { grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); }

.stat-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 18px;
  display: flex; flex-direction: column; gap: 6px;
  position: relative; overflow: hidden;
}
.stat-card::before {
  content: ''; position: absolute;
  top: 0; left: 0; right: 0; height: 2px;
  background: var(--accent);
}
.stat-card.accent-green::before  { background: var(--green); }
.stat-card.accent-blue::before   { background: var(--accent); }
.stat-card.accent-orange::before { background: var(--orange); }
.stat-card.accent-purple::before { background: var(--purple); }
.stat-card.accent-red::before    { background: var(--red); }

.stat-label { font-size: 11px; color: var(--text-muted); text-transform: uppercase; letter-spacing: .05em; font-weight: 600; }
.stat-value { font-size: 32px; font-weight: 700; font-family: var(--font-mono); line-height: 1; }

/* ── Panels ───────────────────────────────────────────────────────────────── */
.panel {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 22px;
}
.panel-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: .06em;
  margin-bottom: 16px;
}
.mt-10 { margin-top: 10px; }
.mt-20 { margin-top: 20px; }
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }

/* ── Tables ───────────────────────────────────────────────────────────────── */
.table-scroll { overflow-x: auto; }
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
.data-table th {
  text-align: left;
  padding: 10px 12px;
  font-size: 11px;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: .05em;
  border-bottom: 1px solid var(--border);
}
.data-table td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}
.data-table tr:last-child td { border-bottom: none; }
.data-table tr:hover td { background: rgba(255,255,255,.02); }
.data-table tr.row-inactive td { opacity: .5; }
.data-table tr.row-fail td { background: rgba(239,68,68,.03); }
.tbl-link { color: var(--accent); }
.tbl-link.strong { font-weight: 600; }
.url-cell { color: var(--text-muted); font-size: 12px; }

/* ── Badges ───────────────────────────────────────────────────────────────── */
.badge {
  display: inline-block;
  background: rgba(59,130,246,.15);
  color: #93c5fd;
  border: 1px solid rgba(59,130,246,.2);
  border-radius: 20px;
  padding: 2px 10px;
  font-size: 11px; font-weight: 600;
}
.badge-red {
  display: inline-block;
  background: rgba(239,68,68,.15);
  color: #fca5a5;
  border: 1px solid rgba(239,68,68,.2);
  border-radius: 20px;
  padding: 2px 10px;
  font-size: 11px; font-weight: 600;
}
.status-badge {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 11px; font-weight: 600;
}
.status-badge.active   { background: rgba(34,197,94,.12); color: var(--green); border: 1px solid rgba(34,197,94,.2); }
.status-badge.inactive { background: rgba(100,116,139,.12); color: var(--text-muted); border: 1px solid rgba(100,116,139,.2); }

.code-badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11px;
  background: var(--bg3);
  border: 1px solid var(--border2);
  color: var(--text-muted);
  padding: 2px 8px;
  border-radius: 5px;
}
.code-badge.lg { font-size: 13px; padding: 4px 12px; }

/* ── Forms ────────────────────────────────────────────────────────────────── */
.form-wrap {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 24px;
  align-items: start;
}
.styled-form {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  display: flex; flex-direction: column; gap: 20px;
}
.field-group { display: flex; flex-direction: column; gap: 6px; }
.field-group label { font-size: 12px; font-weight: 600; color: var(--text-muted); text-transform: uppercase; letter-spacing: .04em; }
.field-group input, .field-group textarea, .field-group select {
  background: var(--bg3);
  border: 1px solid var(--border2);
  color: var(--text);
  border-radius: 8px;
  padding: 10px 14px;
  font-family: var(--font-body);
  font-size: 14px;
  transition: border-color .15s;
}
.field-group input:focus, .field-group textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(59,130,246,.1);
}
.field-group small { font-size: 12px; color: var(--text-muted); }
.field-group .accent-note { color: #93c5fd; }
.req { color: var(--red); }
.highlight-field { background: rgba(59,130,246,.04); padding: 16px; border-radius: 8px; border: 1px solid rgba(59,130,246,.1); }
.checkbox-label { display: flex; align-items: center; gap: 8px; cursor: pointer; font-size: 13px; color: var(--text); font-weight: 400; text-transform: none; letter-spacing: 0; }
.checkbox-label input[type=checkbox] { width: 16px; height: 16px; cursor: pointer; }
.form-actions { display: flex; gap: 10px; flex-wrap: wrap; }

.info-box {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
}
.warning-box { border-color: rgba(249,115,22,.2); background: rgba(249,115,22,.03); }
.info-box h3 { font-size: 13px; font-weight: 600; margin-bottom: 12px; color: var(--text-muted); text-transform: uppercase; letter-spacing: .05em; }
.info-box ul { list-style: none; display: flex; flex-direction: column; gap: 8px; }
.info-box ul li { font-size: 13px; padding-left: 16px; position: relative; color: var(--text-muted); }
.info-box ul li::before { content: '→'; position: absolute; left: 0; color: var(--accent); }

/* ── Search bar ───────────────────────────────────────────────────────────── */
.search-bar {
  display: flex; gap: 8px; align-items: center;
  margin-bottom: 16px;
  flex-wrap: wrap;
}
.search-bar input {
  flex: 1; min-width: 200px;
  background: var(--bg3);
  border: 1px solid var(--border2);
  color: var(--text);
  border-radius: 8px;
  padding: 9px 14px;
  font-family: var(--font-body); font-size: 14px;
}
.search-bar input:focus { outline: none; border-color: var(--accent); }

/* ── QR list ──────────────────────────────────────────────────────────────── */
.qr-thumb {
  width: 50px; height: 50px;
  border-radius: 6px;
  border: 1px solid var(--border2);
  background: #fff;
}
.ua-cell { color: var(--text-muted); }
.empty-msg { color: var(--text-muted); font-size: 13px; padding: 20px 0; }
.empty-state { text-align: center; padding: 40px 20px; display: flex; flex-direction: column; align-items: center; gap: 16px; color: var(--text-muted); }

/* ── QR detail ────────────────────────────────────────────────────────────── */
.detail-grid {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 24px;
  align-items: start;
}
.qr-preview-panel { text-align: center; }
.qr-preview {
  width: 200px; height: 200px;
  border-radius: 8px;
  border: 2px solid var(--border2);
  background: #fff;
  margin: 0 auto 16px;
  display: block;
}
.qr-meta { text-align: left; font-size: 13px; display: flex; flex-direction: column; gap: 6px; }
.qr-meta p { color: var(--text-muted); }
.qr-meta strong { color: var(--text); }
.url-break { word-break: break-all; font-size: 12px; color: var(--accent); }
.copy-row { display: flex; gap: 6px; }
.copy-row input { flex: 1; background: var(--bg3); border: 1px solid var(--border2); color: var(--text-muted); border-radius: 6px; padding: 6px 10px; font-size: 11px; font-family: var(--font-mono); }
.qr-actions-panel { margin-top: 16px; display: flex; flex-direction: column; gap: 8px; }

/* ── Security ─────────────────────────────────────────────────────────────── */
.inline-form {
  display: flex; gap: 8px; flex-wrap: wrap;
  margin-bottom: 16px;
}
.inline-form input {
  background: var(--bg3); border: 1px solid var(--border2);
  color: var(--text); border-radius: 8px;
  padding: 8px 12px; font-size: 13px;
  font-family: var(--font-body);
}

/* ── Login ────────────────────────────────────────────────────────────────── */
.login-wrap {
  min-height: 100vh;
  display: flex; align-items: center; justify-content: center;
  background: var(--bg);
  padding: 24px;
}
.login-card {
  width: 100%; max-width: 380px;
  background: var(--bg2);
  border: 1px solid var(--border2);
  border-radius: 16px;
  padding: 40px 36px;
  box-shadow: 0 20px 60px rgba(0,0,0,.4);
}
.login-header { text-align: center; margin-bottom: 32px; }
.login-logo { font-size: 36px; margin-bottom: 10px; }
.login-header h1 { font-family: var(--font-mono); font-size: 26px; margin-bottom: 6px; }
.login-header h1 strong { color: var(--accent); }
.login-header p { color: var(--text-muted); font-size: 13px; }
.login-form { display: flex; flex-direction: column; gap: 18px; }
.pw-wrap { position: relative; }
.pw-wrap input { width: 100%; }
.pw-toggle { position: absolute; right: 12px; top: 50%; transform: translateY(-50%); background: none; border: none; cursor: pointer; font-size: 16px; }
.btn-login {
  width: 100%; padding: 12px;
  background: var(--accent); color: #fff;
  border: none; border-radius: 10px;
  font-size: 15px; font-weight: 600;
  cursor: pointer; transition: background .15s;
  margin-top: 4px;
}
.btn-login:hover { background: #2563eb; }
.login-footer { text-align: center; margin-top: 20px; color: var(--text-muted); }
.lockout-banner {
  background: rgba(239,68,68,.1); border: 1px solid rgba(239,68,68,.3);
  color: #fca5a5; border-radius: 10px;
  padding: 16px; text-align: center; font-size: 14px;
}

/* ── Error pages ──────────────────────────────────────────────────────────── */
.error-page {
  min-height: 100vh;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 12px; text-align: center; padding: 24px;
}
.error-code {
  font-family: var(--font-mono);
  font-size: 80px; font-weight: 700;
  color: var(--border2);
  line-height: 1;
}

/* ── Responsive ───────────────────────────────────────────────────────────── */
@media (max-width: 900px) {
  .sidebar { transform: translateX(-100%); }
  .main-wrapper { margin-left: 0; }
  .two-col, .detail-grid, .form-wrap { grid-template-columns: 1fr; }
}