/* ==========================================================================
   DUAL THEME DESIGN TOKENS (AMOLED DARK DEFAULT + CLEAN LIGHT THEME)
   ========================================================================== */
:root,
html[data-theme="dark"] {
  --bg-amoled: #000000;
  --bg-header: rgba(6, 8, 13, 0.9);
  --bg-card: #0a0d14;
  --bg-card-alt: #06080d;
  --bg-input: #04060a;
  --border-subtle: rgba(255, 255, 255, 0.09);
  --border-strong: rgba(0, 229, 255, 0.35);

  --accent-cyan: #00e5ff;
  --accent-cyan-glow: rgba(0, 229, 255, 0.16);
  --accent-violet: #8b5cf6;
  --accent-emerald: #10b981;
  --accent-amber: #f59e0b;
  --accent-rose: #f43f5e;

  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;

  --btn-primary-fg: #020408;
  --shadow-card: 0 16px 38px rgba(0, 0, 0, 0.78);
  --glow-opacity: 0.28;
}

html[data-theme="light"] {
  --bg-amoled: #f8fafc;
  --bg-header: rgba(255, 255, 255, 0.92);
  --bg-card: #ffffff;
  --bg-card-alt: #f1f5f9;
  --bg-input: #f8fafc;
  --border-subtle: #e2e8f0;
  --border-strong: rgba(2, 132, 199, 0.45);

  --accent-cyan: #0284c7;
  --accent-cyan-glow: rgba(2, 132, 199, 0.14);
  --accent-violet: #7c3aed;
  --accent-emerald: #059669;
  --accent-amber: #d97706;
  --accent-rose: #e11d48;

  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #64748b;

  --btn-primary-fg: #ffffff;
  --shadow-card: 0 10px 30px rgba(15, 23, 42, 0.06);
  --glow-opacity: 0.08;
}

:root {
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-display: 'Plus Jakarta Sans', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  --radius-sm: 10px;
  --radius-md: 14px;
  --radius-lg: 18px;
  --transition: 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html, body {
  background-color: var(--bg-amoled);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  min-height: 100vh;
  transition: background-color 0.2s ease, color 0.2s ease;
}

.hidden {
  display: none !important;
}

/* Custom Scrollbars */
::-webkit-scrollbar {
  width: 7px;
  height: 7px;
}
::-webkit-scrollbar-track {
  background: var(--bg-amoled);
}
::-webkit-scrollbar-thumb {
  background: var(--border-subtle);
  border-radius: 999px;
}

/* Ambient Background Glow */
.ambient-glow {
  position: fixed;
  pointer-events: none;
  z-index: 0;
  filter: blur(130px);
  opacity: var(--glow-opacity);
}
.glow-cyan {
  width: 440px;
  height: 440px;
  background: radial-gradient(circle, var(--accent-cyan), transparent 70%);
  top: -150px;
  left: 12%;
}
.glow-violet {
  width: 480px;
  height: 480px;
  background: radial-gradient(circle, var(--accent-violet), transparent 70%);
  bottom: -180px;
  right: 10%;
}

/* Typography & Utility Classes */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  letter-spacing: -0.02em;
  color: var(--text-primary);
}
.mono { font-family: var(--font-mono); }
.text-cyan { color: var(--accent-cyan) !important; }
.text-violet { color: var(--accent-violet) !important; }
.text-emerald { color: var(--accent-emerald) !important; }
.text-amber { color: var(--accent-amber) !important; }
.text-rose { color: var(--accent-rose) !important; }
.text-muted { color: var(--text-secondary) !important; }
.text-right { text-align: right !important; }
.text-ellipsis {
  display: inline-block;
  max-width: 260px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  vertical-align: bottom;
}

.material-symbols-outlined {
  font-size: 20px;
  vertical-align: middle;
  user-select: none;
}

/* ==========================================================================
   TOP NAVIGATION HEADER
   ========================================================================== */
.app-header {
  position: sticky;
  top: 0;
  z-index: 150;
  background: var(--bg-header);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--border-subtle);
}

.header-inner {
  max-width: 1240px;
  margin: 0 auto;
  padding: 12px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand-lockup {
  display: flex;
  align-items: center;
  gap: 12px;
  cursor: pointer;
}

.brand-logo {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  border: 1px solid var(--border-strong);
}

.brand-titles {
  display: flex;
  flex-direction: column;
}

.brand-name {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.05rem;
  color: var(--text-primary);
}

.brand-domain {
  font-family: var(--font-mono);
  font-size: 0.73rem;
  color: var(--accent-cyan);
  font-weight: 600;
}

.primary-mode-switch {
  display: flex;
  align-items: center;
  background: var(--bg-card-alt);
  border: 1px solid var(--border-subtle);
  padding: 4px;
  border-radius: 12px;
  gap: 4px;
}

.mode-tab {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-family: var(--font-sans);
  font-size: 0.86rem;
  font-weight: 600;
  padding: 8px 16px;
  border-radius: 9px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  transition: all var(--transition);
}

.mode-tab:hover {
  color: var(--text-primary);
}

.mode-tab.active {
  background: var(--bg-card);
  color: var(--accent-cyan);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.18);
  border: 1px solid var(--border-subtle);
}

.session-pill {
  background: rgba(16, 185, 129, 0.16);
  color: var(--accent-emerald);
  border: 1px solid rgba(16, 185, 129, 0.35);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  padding: 2px 7px;
  border-radius: 999px;
}

.theme-toggle-btn {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
  padding: 8px 14px;
  border-radius: 10px;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-family: var(--font-sans);
  font-size: 0.84rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
}
.theme-toggle-btn:hover {
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
}

/* ==========================================================================
   MAIN CONTAINER & WORKSPACE VIEWS
   ========================================================================== */
.app-container {
  position: relative;
  z-index: 1;
  max-width: 1240px;
  margin: 0 auto;
  padding: 32px 24px 56px;
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.workspace-view {
  display: none;
  flex-direction: column;
  gap: 24px;
  animation: fadeIn 0.22s ease-out;
}
.workspace-view.active {
  display: flex;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(5px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ==========================================================================
   CLEAN PUBLIC SHORTENER WORKSPACE
   ========================================================================== */
.hero-shortener-wrap {
  max-width: 840px;
  width: 100%;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.hero-heading {
  text-align: center;
  padding: 8px 0 4px;
}
.hero-heading h1 {
  font-size: 2.1rem;
  font-weight: 800;
  margin-bottom: 8px;
}
.hero-heading p {
  color: var(--text-secondary);
  font-size: 0.96rem;
  max-width: 640px;
  margin: 0 auto;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-card);
}

.shortener-card {
  border-color: var(--border-strong);
}

.clean-shortener-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.primary-url-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 12px;
}

.url-main-input input {
  font-size: 0.98rem !important;
  padding: 14px 16px 14px 44px !important;
  height: 52px;
}

.optional-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  padding-top: 4px;
}

.optional-toggle-btn {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-family: var(--font-sans);
  font-size: 0.84rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
}
.optional-toggle-btn:hover {
  color: var(--accent-cyan);
}

.live-preview-pill {
  font-size: 0.78rem;
  color: var(--accent-cyan);
  background: var(--accent-cyan-glow);
  border: 1px solid var(--border-strong);
  padding: 4px 12px;
  border-radius: 999px;
}

.optional-drawer {
  padding-top: 16px;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.form-grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}
.form-grid-3 {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 14px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.form-group label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.input-with-icon {
  position: relative;
  display: flex;
  align-items: center;
  width: 100%;
}
.input-with-icon .material-symbols-outlined {
  position: absolute;
  left: 14px;
  color: var(--text-muted);
  font-size: 19px;
  pointer-events: none;
}
.input-with-icon input {
  padding-left: 42px !important;
}

input[type="text"],
input[type="url"],
input[type="password"],
input[type="number"],
input[type="datetime-local"],
textarea,
.form-select {
  width: 100%;
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 0.88rem;
  padding: 10px 13px;
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
}

input:focus,
textarea:focus,
.form-select:focus {
  border-color: var(--accent-cyan);
  box-shadow: 0 0 0 3px var(--accent-cyan-glow);
}

.input-action-group {
  display: flex;
  gap: 6px;
}

.range-slider {
  width: 100%;
  accent-color: var(--accent-cyan);
  margin-top: 8px;
}

.availability-feedback {
  font-size: 0.76rem;
  font-family: var(--font-mono);
  min-height: 16px;
}

/* Generated Result Card */
.generated-result-card {
  border: 1px solid rgba(16, 185, 129, 0.4);
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.result-banner-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  flex-wrap: wrap;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--border-subtle);
}

.result-title-group {
  display: flex;
  align-items: center;
  gap: 12px;
}
.result-title-group .material-symbols-outlined {
  font-size: 28px;
}
.result-title-group h3 {
  font-size: 1.08rem;
}
.result-title-group p {
  font-size: 0.82rem;
  color: var(--text-secondary);
}

.result-credentials-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.cred-box {
  background: var(--bg-card-alt);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 14px;
}
.cred-box.cred-highlight {
  border-color: var(--border-strong);
  background: var(--accent-cyan-glow);
}
.cred-box label {
  display: block;
  font-size: 0.71rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
  margin-bottom: 8px;
}
.copy-input-row {
  display: flex;
  gap: 8px;
}

.result-qr-strip {
  display: flex;
  align-items: center;
  gap: 16px;
  background: var(--bg-card-alt);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 14px;
}
.qr-mini-preview {
  width: 92px;
  height: 92px;
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid var(--border-strong);
  flex-shrink: 0;
  background: #000;
}
.qr-mini-preview img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.qr-strip-info h4 {
  font-size: 0.94rem;
  margin-bottom: 3px;
}
.qr-strip-info p {
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

/* Quick Access Strip */
.quick-access-strip {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  padding: 18px 22px;
}
.strip-left {
  display: flex;
  align-items: center;
  gap: 12px;
}
.strip-left .material-symbols-outlined {
  font-size: 26px;
}
.strip-left strong {
  font-size: 0.94rem;
  display: block;
}
.strip-left p {
  font-size: 0.8rem;
  color: var(--text-secondary);
}
.strip-form {
  display: flex;
  gap: 8px;
  flex: 1;
  max-width: 390px;
}

/* ==========================================================================
   WORKSPACE 2: DUAL-MODE ADMIN GATEWAY & UNLOCKED PANEL
   ========================================================================== */
.admin-gate-wrap {
  max-width: 880px;
  width: 100%;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.gate-header {
  text-align: center;
}
.gate-header h2 {
  font-size: 1.75rem;
  margin-bottom: 6px;
}
.gate-header p {
  color: var(--text-secondary);
  font-size: 0.92rem;
  max-width: 620px;
  margin: 0 auto;
}

.gate-cards-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.gate-card {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.gate-card-user {
  border-color: var(--border-strong);
}
.gate-card-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: var(--accent-cyan-glow);
  color: var(--accent-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
}
.gate-card-icon.master-icon {
  background: rgba(139, 92, 246, 0.15);
  color: var(--accent-violet);
}
.gate-card h3 {
  font-size: 1.2rem;
}
.gate-card p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  flex: 1;
}
.gate-form {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

/* Unlocked Admin Shell */
.unlocked-admin-shell {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.admin-session-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  padding: 16px 22px;
}
.session-info {
  display: flex;
  align-items: center;
  gap: 14px;
}
.session-info h3 {
  font-size: 1.1rem;
}
.session-info p {
  font-size: 0.8rem;
}
.session-actions {
  display: flex;
  gap: 8px;
}

.admin-subnav {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 4px;
}
.subnav-btn {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  padding: 10px 16px;
  border-radius: 11px;
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  white-space: nowrap;
  transition: all var(--transition);
}
.subnav-btn:hover {
  color: var(--text-primary);
  border-color: var(--border-strong);
}
.subnav-btn.active {
  background: var(--accent-cyan-glow);
  color: var(--accent-cyan);
  border-color: var(--border-strong);
}

.admin-tab-pane {
  display: none;
  flex-direction: column;
  gap: 20px;
}
.admin-tab-pane.active {
  display: flex;
}

/* Single Link Control Banner */
.single-link-control-card {
  border-color: var(--border-strong);
}
.sl-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}
.sl-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

/* KPI Grid & Charts */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 14px;
}

.kpi-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 16px 18px;
  display: flex;
  align-items: flex-start;
  gap: 14px;
}
.kpi-icon {
  width: 42px;
  height: 42px;
  border-radius: 11px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.accent-cyan .kpi-icon { background: var(--accent-cyan-glow); color: var(--accent-cyan); }
.accent-violet .kpi-icon { background: rgba(139, 92, 246, 0.14); color: var(--accent-violet); }
.accent-emerald .kpi-icon { background: rgba(16, 185, 129, 0.14); color: var(--accent-emerald); }
.accent-amber .kpi-icon { background: rgba(245, 158, 11, 0.14); color: var(--accent-amber); }

.kpi-body { display: flex; flex-direction: column; }
.kpi-label { font-size: 0.78rem; color: var(--text-secondary); }
.kpi-value { font-family: var(--font-mono); font-size: 1.45rem; font-weight: 700; margin: 2px 0; }
.kpi-sub { font-size: 0.72rem; color: var(--text-muted); }

.overview-charts-grid {
  display: grid;
  grid-template-columns: 1.8fr 1fr;
  gap: 18px;
}

.analytics-charts-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
}
.chart-full { grid-column: 1 / -1; }
.chart-container { position: relative; height: 290px; width: 100%; }
.chart-container.chart-sm { height: 245px; }

/* Buttons & Pills */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  font-family: var(--font-sans);
  font-size: 0.87rem;
  font-weight: 600;
  padding: 10px 18px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: all var(--transition);
  white-space: nowrap;
}
.btn-primary {
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-violet));
  color: var(--btn-primary-fg);
  font-weight: 700;
}
.btn-secondary {
  background: var(--bg-card-alt);
  border-color: var(--border-subtle);
  color: var(--text-primary);
}
.btn-secondary:hover {
  border-color: var(--accent-cyan);
}
.btn-accent {
  background: var(--accent-cyan-glow);
  border-color: var(--border-strong);
  color: var(--accent-cyan);
}
.btn-danger {
  background: rgba(244, 63, 94, 0.14);
  border-color: rgba(244, 63, 94, 0.35);
  color: var(--accent-rose);
}

.btn-full { width: 100%; }
.btn-lg { padding: 13px 24px; font-size: 0.95rem; height: 52px; }
.btn-sm { padding: 7px 13px; font-size: 0.81rem; }
.btn-xs { padding: 5px 10px; font-size: 0.75rem; border-radius: 8px; }

.icon-btn {
  width: 34px;
  height: 34px;
  border-radius: 9px;
  border: 1px solid var(--border-subtle);
  background: var(--bg-card-alt);
  color: var(--text-secondary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}
.icon-btn:hover {
  color: var(--accent-cyan);
  border-color: var(--accent-cyan);
}

.badge-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border-radius: 999px;
  background: var(--accent-cyan-glow);
  border: 1px solid var(--border-strong);
  color: var(--accent-cyan);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  margin-bottom: 10px;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 4px 10px;
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
}
.status-active { background: rgba(16, 185, 129, 0.15); color: var(--accent-emerald); }
.status-expired { background: rgba(245, 158, 11, 0.15); color: var(--accent-amber); }
.status-disabled { background: rgba(244, 63, 94, 0.15); color: var(--accent-rose); }

/* Tables, Toolbars & Mobile Cards */
.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}
.card-header h3 { font-size: 1.05rem; }
.card-header p { font-size: 0.82rem; color: var(--text-secondary); }
.header-export-btns, .btn-row { display: flex; gap: 8px; flex-wrap: wrap; }

.management-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}
.toolbar-search { flex: 1; min-width: 240px; }
.toolbar-filters { display: flex; gap: 10px; flex-wrap: wrap; }
.toolbar-filters .form-select { width: auto; min-width: 150px; }

.bulk-action-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--accent-cyan-glow);
  border: 1px solid var(--border-strong);
  border-radius: 10px;
  padding: 10px 14px;
  margin-bottom: 14px;
}
.checkbox-label { display: inline-flex; align-items: center; gap: 8px; font-size: 0.84rem; }
.bulk-right { display: flex; gap: 6px; }

.table-responsive { width: 100%; overflow-x: auto; }
.data-table { width: 100%; border-collapse: collapse; font-size: 0.85rem; }
.data-table th {
  text-align: left;
  padding: 11px 13px;
  font-size: 0.73rem;
  text-transform: uppercase;
  color: var(--text-secondary);
  background: var(--bg-card-alt);
  border-bottom: 1px solid var(--border-subtle);
  white-space: nowrap;
}
.data-table td {
  padding: 12px 13px;
  border-bottom: 1px solid var(--border-subtle);
  vertical-align: middle;
}
.link-short-anchor {
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--accent-cyan);
  text-decoration: none;
}
.trk-chip {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background: rgba(139, 92, 246, 0.14);
  color: var(--accent-violet);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  padding: 3px 9px;
  border-radius: 8px;
}
.action-btn-group { display: inline-flex; gap: 5px; }

.table-footer-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 14px;
  font-size: 0.82rem;
}
.pagination-controls { display: inline-flex; align-items: center; gap: 8px; }

/* Mobile Cards */
.mobile-cards-container { display: none; flex-direction: column; gap: 12px; }
.mob-link-card {
  background: var(--bg-card-alt);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 15px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.mob-card-top { display: flex; justify-content: space-between; align-items: flex-start; gap: 8px; }
.mob-card-metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  background: var(--bg-card);
  padding: 9px;
  border-radius: 9px;
  font-size: 0.75rem;
}
.mob-card-actions { display: flex; flex-wrap: wrap; gap: 6px; }

/* Geo & Settings */
.section-filter-bar { display: flex; align-items: center; justify-content: space-between; gap: 14px; flex-wrap: wrap; }
.filter-bar-left { display: flex; align-items: center; gap: 12px; }
.filter-bar-right { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.filter-bar-right .form-select { width: auto; }

.geo-summary-strip { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.geo-stat-pill {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 14px 16px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.geo-stat-pill .material-symbols-outlined { color: var(--accent-cyan); font-size: 24px; }
.geo-stat-pill span { display: block; font-size: 0.76rem; color: var(--text-secondary); }
.geo-stat-pill strong { font-size: 1.25rem; }

.leaflet-map-box { width: 100%; height: 360px; border-radius: var(--radius-md); border: 1px solid var(--border-subtle); z-index: 2; }
.geo-tables-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }

.settings-grid { display: grid; grid-template-columns: 1.2fr 1fr; gap: 18px; }
.advanced-form { display: flex; flex-direction: column; gap: 14px; }
.form-submit-bar { display: flex; justify-content: flex-end; padding-top: 8px; }
.maintenance-actions-list { display: flex; flex-direction: column; gap: 12px; }
.maint-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px;
  background: var(--bg-card-alt);
  border: 1px solid var(--border-subtle);
  border-radius: 10px;
}
.maint-item p { font-size: 0.78rem; color: var(--text-secondary); }

/* Modals, Toasts & Footer */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.78);
  backdrop-filter: blur(6px);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 18px;
  z-index: 500;
}
.modal-backdrop.open { display: flex; }
.modal-dialog {
  background: var(--bg-card);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  max-width: 540px;
  width: 100%;
  padding: 22px;
  box-shadow: var(--shadow-card);
}
.modal-dialog.modal-sm { max-width: 400px; }
.modal-header { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 16px; }
.confirm-title-row { display: flex; align-items: center; gap: 8px; }
.modal-body-text { color: var(--text-secondary); font-size: 0.9rem; margin-bottom: 16px; }
.modal-footer { display: flex; justify-content: flex-end; gap: 8px; margin-top: 16px; padding-top: 12px; border-top: 1px solid var(--border-subtle); }

.qr-modal-body { display: flex; flex-direction: column; align-items: center; gap: 12px; }
.qr-modal-preview { width: 220px; height: 220px; border-radius: 14px; overflow: hidden; border: 1px solid var(--border-strong); background: #000; }
.qr-modal-preview img { width: 100%; height: 100%; object-fit: contain; }
.qr-theme-Controls { display: flex; gap: 8px; }

.toast-stack {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 900;
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-width: 360px;
}
.toast-item {
  background: var(--bg-card);
  border: 1px solid var(--border-strong);
  border-left: 4px solid var(--accent-cyan);
  color: var(--text-primary);
  padding: 12px 15px;
  border-radius: 11px;
  box-shadow: var(--shadow-card);
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.84rem;
}
.toast-item.toast-error { border-left-color: var(--accent-rose); }
.toast-item.toast-success { border-left-color: var(--accent-emerald); }

.platform-footer {
  margin-top: 18px;
  padding-top: 20px;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  color: var(--text-secondary);
  font-size: 0.83rem;
}
.footer-brand { display: flex; align-items: center; gap: 10px; font-weight: 600; }
.footer-logo { width: 24px; height: 24px; border-radius: 6px; }
.footer-credits { text-align: right; }
.dev-credit { color: var(--text-primary); font-weight: 700; }
.copyright-credit { font-size: 0.75rem; color: var(--text-muted); }

.mobile-bottom-nav { display: none; }

/* ==========================================================================
   MOBILE & TABLET RESPONSIVE OPTIMIZATION
   ========================================================================== */
@media (max-width: 960px) {
  .overview-charts-grid,
  .geo-tables-grid,
  .settings-grid,
  .gate-cards-grid,
  .result-credentials-grid {
    grid-template-columns: 1fr;
  }
  .geo-summary-strip {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .primary-mode-switch,
  .theme-label {
    display: none;
  }

  .header-inner {
    padding: 10px 16px;
  }

  .app-container {
    padding: 18px 14px 92px;
  }

  .hero-heading h1 {
    font-size: 1.55rem;
  }

  .card {
    padding: 16px;
  }

  .primary-url-row,
  .form-grid-2,
  .form-grid-3,
  .analytics-charts-grid,
  .strip-form {
    grid-template-columns: 1fr;
    display: grid;
  }

  .kpi-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
  }

  .desktop-table-view {
    display: none;
  }
  .mobile-cards-container {
    display: flex;
  }

  .result-qr-strip {
    flex-direction: column;
    text-align: center;
  }

  .mobile-bottom-nav {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--bg-header);
    backdrop-filter: blur(18px);
    border-top: 1px solid var(--border-subtle);
    z-index: 250;
    padding: 6px 4px;
  }

  .mob-nav-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
    padding: 6px 2px;
    font-size: 0.68rem;
    font-weight: 600;
    cursor: pointer;
  }
  .mob-nav-btn.active {
    color: var(--accent-cyan);
  }

  .platform-footer {
    flex-direction: column;
    text-align: center;
  }
  .footer-credits {
    text-align: center;
  }
}

@media (max-width: 440px) {
  .kpi-grid,
  .geo-summary-strip {
    grid-template-columns: 1fr;
  }
}