:root {
  --bg-primary: #0b0f19;
  --bg-secondary: #111827;
  --bg-card: rgba(17, 24, 39, 0.75);
  --bg-card-hover: rgba(31, 41, 55, 0.85);
  --border-color: rgba(255, 255, 255, 0.08);
  --border-accent: rgba(99, 102, 241, 0.3);
  --text-main: #f3f4f6;
  --text-muted: #9ca3af;
  --text-dim: #6b7280;
  --primary: #6366f1;
  --primary-hover: #4f46e5;
  --primary-glow: rgba(99, 102, 241, 0.25);
  --success: #10b981;
  --success-glow: rgba(16, 185, 129, 0.2);
  --warning: #f59e0b;
  --danger: #ef4444;
  --cyan: #06b6d4;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.5), 0 8px 10px -6px rgba(0, 0, 0, 0.5);
  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: var(--font-sans);
}

body {
  background-color: var(--bg-primary);
  background-image: 
    radial-gradient(at 0% 0%, rgba(99, 102, 241, 0.12) 0px, transparent 50%),
    radial-gradient(at 100% 0%, rgba(16, 185, 129, 0.08) 0px, transparent 50%),
    radial-gradient(at 50% 100%, rgba(139, 92, 246, 0.08) 0px, transparent 50%);
  background-attachment: fixed;
  color: var(--text-main);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* NAVBAR */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(11, 15, 25, 0.85);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-color);
  padding: 0.85rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--text-main);
}

.brand-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, #6366f1, #3b82f6);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  box-shadow: 0 4px 12px var(--primary-glow);
}

.brand-text h1 {
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  background: linear-gradient(to right, #ffffff, #cbd5e1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.brand-tag {
  font-size: 0.65rem;
  padding: 2px 7px;
  background: rgba(16, 185, 129, 0.15);
  border: 1px solid rgba(16, 185, 129, 0.3);
  color: var(--success);
  border-radius: 9999px;
  font-weight: 700;
  text-transform: uppercase;
}

.nav-menu {
  display: flex;
  gap: 8px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-color);
  padding: 4px;
  border-radius: 12px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.2s ease;
  border: none;
  background: transparent;
}

.nav-item:hover {
  color: var(--text-main);
  background: rgba(255, 255, 255, 0.05);
}

.nav-item.active {
  color: #fff;
  background: var(--primary);
  box-shadow: 0 2px 8px var(--primary-glow);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.status-pill {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
  padding: 5px 12px;
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.25);
  color: var(--success);
  border-radius: 9999px;
  font-weight: 600;
}

.pulse-dot {
  width: 7px;
  height: 7px;
  background-color: var(--success);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--success);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% { opacity: 0.4; }
  50% { opacity: 1; transform: scale(1.1); }
  100% { opacity: 0.4; }
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: linear-gradient(135deg, var(--primary), var(--primary-hover));
  color: #fff;
  padding: 8px 16px;
  border-radius: 10px;
  font-weight: 600;
  font-size: 0.88rem;
  border: none;
  cursor: pointer;
  box-shadow: 0 4px 12px var(--primary-glow);
  transition: all 0.2s ease;
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 16px var(--primary-glow);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  padding: 8px 16px;
  border-radius: 10px;
  font-weight: 600;
  font-size: 0.88rem;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
}

/* MAIN CONTAINER */
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 2rem;
  flex: 1;
  width: 100%;
}

.page-view {
  display: none;
  animation: fadeIn 0.3s ease;
}

.page-view.active {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

/* PAGE HEADER */
.page-header {
  margin-bottom: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  flex-wrap: wrap;
  gap: 1rem;
}

.page-header h2 {
  font-size: 1.85rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 0.35rem;
  color: #fff;
}

.page-header p {
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* STATS GRID */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.25rem;
  margin-bottom: 2.5rem;
}

.stat-card {
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  transition: all 0.25s ease;
  position: relative;
  overflow: hidden;
}

.stat-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--primary), transparent);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.stat-card:hover {
  border-color: var(--border-accent);
  transform: translateY(-2px);
  background: var(--bg-card-hover);
}

.stat-card:hover::before {
  opacity: 1;
}

.stat-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.75rem;
}

.stat-title {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.stat-icon {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  background: rgba(99, 102, 241, 0.12);
}

.stat-val {
  font-size: 2rem;
  font-weight: 800;
  color: #fff;
  letter-spacing: -0.02em;
  margin-bottom: 0.35rem;
}

.stat-foot {
  font-size: 0.8rem;
  color: var(--text-dim);
  display: flex;
  align-items: center;
  gap: 6px;
}

.stat-foot .positive {
  color: var(--success);
  font-weight: 600;
}

/* WORKFLOW DIAGRAM SECTION */
.workflow-section {
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2rem;
  margin-bottom: 2.5rem;
  box-shadow: var(--shadow-lg);
}

.section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.5rem;
}

.section-head h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: #fff;
  display: flex;
  align-items: center;
  gap: 10px;
}

.workflow-timeline {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1.25rem;
  position: relative;
  margin-top: 1.5rem;
}

@media (max-width: 1024px) {
  .workflow-timeline {
    grid-template-columns: 1fr;
  }
}

.workflow-step {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  position: relative;
  transition: all 0.3s ease;
  display: flex;
  flex-direction: column;
}

.workflow-step:hover {
  border-color: var(--primary);
  background: rgba(99, 102, 241, 0.04);
  transform: translateY(-3px);
}

.step-number {
  width: 28px;
  height: 28px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--cyan);
  margin-bottom: 1rem;
}

.step-icon {
  width: 44px;
  height: 44px;
  background: rgba(99, 102, 241, 0.15);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  margin-bottom: 1rem;
}

.step-title {
  font-size: 1rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 0.5rem;
}

.step-desc {
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.5;
  margin-bottom: 1rem;
  flex: 1;
}

.step-tag {
  font-size: 0.72rem;
  font-weight: 700;
  padding: 4px 8px;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--cyan);
  display: inline-block;
  align-self: flex-start;
}

/* LINK MANAGER SECTION */
.table-card {
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.table-toolbar {
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.search-box {
  position: relative;
  min-width: 280px;
}

.search-box input {
  width: 100%;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 8px 12px 8px 36px;
  color: #fff;
  font-size: 0.88rem;
  outline: none;
  transition: all 0.2s ease;
}

.search-box input:focus {
  border-color: var(--primary);
  background: rgba(255, 255, 255, 0.08);
}

.search-icon {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-dim);
}

.custom-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

.custom-table th {
  padding: 1rem 1.5rem;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-bottom: 1px solid var(--border-color);
  background: rgba(0, 0, 0, 0.2);
}

.custom-table td {
  padding: 1.1rem 1.5rem;
  font-size: 0.88rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  vertical-align: middle;
}

.custom-table tr:hover td {
  background: rgba(255, 255, 255, 0.02);
}

.link-slug-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  background: rgba(99, 102, 241, 0.15);
  border: 1px solid rgba(99, 102, 241, 0.3);
  color: #a5b4fc;
  border-radius: 6px;
  font-weight: 700;
  font-family: monospace;
  font-size: 0.85rem;
}

.url-truncate {
  max-width: 260px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  color: var(--text-muted);
  display: block;
  font-size: 0.83rem;
}

.click-counter {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 700;
  color: var(--success);
}

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

.btn-icon {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  border: 1px solid var(--border-color);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-icon:hover {
  color: #fff;
  border-color: rgba(255, 255, 255, 0.2);
  background: rgba(255, 255, 255, 0.1);
}

.btn-icon.delete:hover {
  color: var(--danger);
  border-color: rgba(239, 68, 68, 0.3);
  background: rgba(239, 68, 68, 0.1);
}

/* SETTINGS VIEW */
.settings-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

@media (max-width: 900px) {
  .settings-grid {
    grid-template-columns: 1fr;
  }
}

.settings-card {
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  box-shadow: var(--shadow-lg);
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 0.45rem;
}

.form-control {
  width: 100%;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 10px 14px;
  color: #fff;
  font-size: 0.9rem;
  outline: none;
  transition: all 0.2s ease;
}

.form-control:focus {
  border-color: var(--primary);
  background: rgba(255, 255, 255, 0.08);
}

select, select.form-control {
  background-color: #1e293b !important;
  color: #f8fafc !important;
  cursor: pointer;
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");
  background-repeat: no-repeat;
  background-position: right 14px center;
  background-size: 16px;
  padding-right: 40px;
}

select option, select.form-control option {
  background-color: #0f172a !important;
  color: #f8fafc !important;
  padding: 12px 14px;
}

select option:checked,
select option:hover,
select.form-control option:checked,
select.form-control option:hover {
  background-color: #4f46e5 !important;
  color: #ffffff !important;
}

textarea.form-control {
  min-height: 100px;
  font-family: monospace;
  font-size: 0.85rem;
  resize: vertical;
}

.form-toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  margin-top: 1rem;
}

.toggle-switch {
  position: relative;
  display: inline-block;
  width: 44px;
  height: 24px;
}

.toggle-switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.toggle-slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(255, 255, 255, 0.2);
  transition: 0.3s;
  border-radius: 34px;
}

.toggle-slider:before {
  position: absolute;
  content: "";
  height: 18px;
  width: 18px;
  left: 3px;
  bottom: 3px;
  background-color: white;
  transition: 0.3s;
  border-radius: 50%;
}

input:checked + .toggle-slider {
  background-color: var(--success);
}

input:checked + .toggle-slider:before {
  transform: translateX(20px);
}

/* MODAL */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(8px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 20px;
}

.modal-overlay.active {
  display: flex;
}

.modal-content {
  background: #131b2e;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-lg);
  max-width: 580px;
  width: 100%;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.7);
  overflow: hidden;
  animation: modalPop 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes modalPop {
  from { opacity: 0; transform: scale(0.95); }
  to { opacity: 1; transform: scale(1); }
}

.modal-header {
  padding: 1.25rem 1.75rem;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-header h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: #fff;
}

.modal-body {
  padding: 1.75rem;
  max-height: 75vh;
  overflow-y: auto;
}

.modal-footer {
  padding: 1rem 1.75rem;
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: flex-end;
  gap: 10px;
}

/* TOAST NOTIFICATION */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 2000;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.toast {
  background: #1e293b;
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: #fff;
  padding: 12px 20px;
  border-radius: 10px;
  font-size: 0.88rem;
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.4);
  display: flex;
  align-items: center;
  gap: 10px;
  animation: toastSlide 0.3s ease;
}

.toast.success {
  border-left: 4px solid var(--success);
}

.toast.error {
  border-left: 4px solid var(--danger);
}

@keyframes toastSlide {
  from { opacity: 0; transform: translateX(20px); }
  to { opacity: 1; transform: translateX(0); }
}

/* MASKING TOGGLE BUTTON IN TABLE ROW */
.toggle-masking-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 0.78rem;
  font-weight: 700;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all 0.25s ease;
  user-select: none;
}

.toggle-masking-btn.active {
  background: rgba(16, 185, 129, 0.15);
  color: #10b981;
  border-color: rgba(16, 185, 129, 0.4);
}

.toggle-masking-btn.active:hover {
  background: rgba(16, 185, 129, 0.25);
  border-color: #10b981;
  box-shadow: 0 0 14px rgba(16, 185, 129, 0.35);
}

.toggle-masking-btn.inactive {
  background: rgba(245, 158, 11, 0.15);
  color: #f59e0b;
  border-color: rgba(245, 158, 11, 0.4);
}

.toggle-masking-btn.inactive:hover {
  background: rgba(245, 158, 11, 0.25);
  border-color: #f59e0b;
  box-shadow: 0 0 14px rgba(245, 158, 11, 0.35);
}

.toggle-pill-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  display: inline-block;
  transition: all 0.25s ease;
}

.toggle-masking-btn.active .toggle-pill-dot {
  background-color: #10b981;
  box-shadow: 0 0 8px #10b981;
}

.toggle-masking-btn.inactive .toggle-pill-dot {
  background-color: #f59e0b;
  box-shadow: 0 0 8px #f59e0b;
}

/* FILTER PILLS */
.filter-pills {
  display: flex;
  gap: 8px;
  align-items: center;
}

.filter-pill {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
}

.filter-pill:hover, .filter-pill.active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

/* MASKING CONTROL CARD IN MODAL */
.modal-masking-card {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 16px;
  margin-top: 14px;
  margin-bottom: 14px;
}

.modal-masking-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.masking-notice-on {
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.25);
  border-radius: 8px;
  padding: 10px 14px;
  font-size: 0.8rem;
  color: #a7f3d0;
  line-height: 1.45;
}

.masking-notice-off {
  background: rgba(245, 158, 11, 0.1);
  border: 1px solid rgba(245, 158, 11, 0.25);
  border-radius: 8px;
  padding: 10px 14px;
  font-size: 0.8rem;
  color: #fde68a;
  line-height: 1.45;
  margin-bottom: 12px;
}

.badge-status-on {
  font-size: 0.72rem;
  font-weight: 700;
  color: #10b981;
  background: rgba(16, 185, 129, 0.15);
  padding: 3px 8px;
  border-radius: 6px;
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.badge-status-off {
  font-size: 0.72rem;
  font-weight: 700;
  color: #f59e0b;
  background: rgba(245, 158, 11, 0.15);
  padding: 3px 8px;
  border-radius: 6px;
  border: 1px solid rgba(245, 158, 11, 0.3);
}

/* FOOTER */
footer {
  border-top: 1px solid var(--border-color);
  padding: 1.5rem 2rem;
  text-align: center;
  font-size: 0.82rem;
  color: var(--text-dim);
  background: rgba(11, 15, 25, 0.5);
}

footer a {
  color: var(--primary);
  text-decoration: none;
}