/* Material 3 Tonal Design System */
:root {
  /* Tonal Surface Color Tokens */
  --md-surface: #0f141c;
  --md-surface-dim: #0c1017;
  --md-surface-container-low: #151a24;
  --md-surface-container: #1b202c;
  --md-surface-container-high: #222836;
  --md-surface-container-highest: #2a3142;

  /* Material Tonal Accent Colors */
  --md-primary: #a8c7ff;
  --md-primary-container: #264777;
  --md-on-primary-container: #d6e3ff;

  --md-secondary: #bec6dc;
  --md-secondary-container: #3b4759;
  --md-on-secondary-container: #dce2f9;

  --md-tertiary-ios: #a5c7ff;
  --md-tertiary-ios-container: #1d3e6e;

  --md-tertiary-android: #6cdb9e;
  --md-tertiary-android-container: #005230;

  --md-tertiary-fallback: #c4c0ff;
  --md-tertiary-fallback-container: #423b89;

  --md-error: #ffb4ab;
  --md-error-container: #93000a;

  /* Typography & Contrast */
  --md-on-surface: #e2e8f0;
  --md-on-surface-variant: #94a3b8;
  --md-outline: #334155;
  --md-outline-variant: #1e293b;

  --font-sans: 'Roboto', 'Inter', system-ui, -apple-system, sans-serif;
  --font-heading: 'Outfit', 'Roboto', system-ui, sans-serif;

  --radius-xs: 4px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Material Tonal Elevation (Clean flat/subtle, NO glow) */
  --shadow-elevation-1: 0 1px 3px rgba(0, 0, 0, 0.3), 0 1px 2px rgba(0, 0, 0, 0.2);
  --shadow-elevation-2: 0 4px 8px rgba(0, 0, 0, 0.35);
  --shadow-elevation-3: 0 8px 16px rgba(0, 0, 0, 0.4);
}

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

body {
  background-color: var(--md-surface);
  color: var(--md-on-surface);
  font-family: var(--font-sans);
  min-height: 100vh;
  line-height: 1.6;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem 1.5rem 4rem 1.5rem;
}

/* Header & Navigation Bar */
header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 1.5rem;
  margin-bottom: 2rem;
  background: var(--md-surface-container);
  border: 1px solid var(--md-outline);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-elevation-1);
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
}

.brand-icon {
  width: 44px;
  height: 44px;
  background: var(--md-primary-container);
  color: var(--md-primary);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(168, 199, 255, 0.2);
}

.brand-icon iconify-icon {
  font-size: 24px;
}

.brand-title {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--md-on-surface);
  letter-spacing: -0.01em;
}

.brand-subtitle {
  font-size: 0.85rem;
  color: var(--md-on-surface-variant);
}

.header-actions {
  display: flex;
  gap: 12px;
}

/* Material Tonal Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 0.65rem 1.25rem;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 0.9rem;
  border: 1px solid var(--md-outline);
  cursor: pointer;
  transition: background-color 0.2s ease, border-color 0.2s ease, transform 0.15s ease;
  text-decoration: none;
}

.btn iconify-icon {
  font-size: 18px;
}

.btn-primary {
  background: var(--md-primary-container);
  color: var(--md-on-primary-container);
  border: 1px solid rgba(168, 199, 255, 0.3);
}

.btn-primary:hover {
  background: #315488;
  border-color: var(--md-primary);
  transform: translateY(-1px);
}

.btn-secondary {
  background: var(--md-surface-container-high);
  color: var(--md-on-surface);
  border: 1px solid var(--md-outline);
}

.btn-secondary:hover {
  background: var(--md-surface-container-highest);
  border-color: var(--md-secondary);
}

.btn-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  background: var(--md-surface-container-high);
  color: var(--md-on-surface-variant);
  border: 1px solid var(--md-outline);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-icon:hover {
  color: var(--md-on-surface);
  background: var(--md-surface-container-highest);
  border-color: var(--md-secondary);
}

.btn-sm {
  padding: 0.45rem 1rem;
  font-size: 0.825rem;
  border-radius: var(--radius-full);
}

/* Material Tonal Stats Grid */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 1.25rem;
  margin-bottom: 2rem;
}

.stat-card {
  background: var(--md-surface-container);
  border: 1px solid var(--md-outline);
  padding: 1.25rem 1.5rem;
  border-radius: var(--radius-xl);
  display: flex;
  flex-direction: column;
  gap: 10px;
  box-shadow: var(--shadow-elevation-1);
  transition: border-color 0.2s ease, background-color 0.2s ease;
}

.stat-card:hover {
  border-color: var(--md-secondary);
  background: var(--md-surface-container-high);
}

.stat-title {
  font-size: 0.8rem;
  color: var(--md-on-surface-variant);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 6px;
}

.stat-value-container {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
}

.stat-value {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 700;
  color: var(--md-on-surface);
}

.stat-badge {
  font-size: 0.75rem;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: var(--radius-full);
  display: inline-flex;
  align-items: center;
  gap: 4px;
  border: 1px solid transparent;
}

.badge-ios {
  background: var(--md-tertiary-ios-container);
  color: var(--md-tertiary-ios);
  border-color: rgba(165, 199, 255, 0.3);
}

.badge-android {
  background: var(--md-tertiary-android-container);
  color: var(--md-tertiary-android);
  border-color: rgba(108, 219, 158, 0.3);
}

.badge-fallback {
  background: var(--md-tertiary-fallback-container);
  color: var(--md-tertiary-fallback);
  border-color: rgba(196, 192, 255, 0.3);
}

/* Dashboard Layout */
.dashboard-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 2rem;
}

@media (max-width: 992px) {
  .dashboard-grid {
    grid-template-columns: 1fr;
  }
}

.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.25rem;
}

.section-title {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 8px;
}

/* Links Cards List */
.links-list {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.link-card {
  background: var(--md-surface-container);
  border: 1px solid var(--md-outline);
  border-radius: var(--radius-xl);
  padding: 1.5rem;
  box-shadow: var(--shadow-elevation-1);
  transition: border-color 0.2s ease, background-color 0.2s ease;
}

.link-card:hover {
  background: var(--md-surface-container-high);
  border-color: var(--md-secondary);
}

.link-card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 1rem;
  gap: 1rem;
}

.link-info {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.link-title {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--md-on-surface);
}

.link-desc {
  font-size: 0.875rem;
  color: var(--md-on-surface-variant);
}

.short-link-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--md-surface-container-highest);
  border: 1px solid var(--md-outline);
  padding: 6px 14px;
  border-radius: var(--radius-full);
  font-family: monospace;
  font-size: 0.88rem;
  color: var(--md-primary);
  margin-top: 6px;
}

.short-link-pill button {
  background: none;
  border: none;
  color: var(--md-on-surface-variant);
  cursor: pointer;
  display: flex;
  align-items: center;
  padding: 2px;
}

.short-link-pill button:hover {
  color: var(--md-on-surface);
}

.link-destinations {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 12px;
  margin: 1.2rem 0;
  background: var(--md-surface-container-low);
  padding: 14px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--md-outline);
}

.destination-item {
  display: flex;
  flex-direction: column;
  font-size: 0.8rem;
  gap: 3px;
  overflow: hidden;
}

.destination-label {
  display: flex;
  align-items: center;
  gap: 6px;
  font-weight: 600;
  color: var(--md-on-surface-variant);
  text-transform: uppercase;
  font-size: 0.725rem;
}

.destination-url {
  color: var(--md-on-surface);
  text-overflow: ellipsis;
  overflow: hidden;
  white-space: nowrap;
  font-family: monospace;
}

.link-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--md-outline);
  padding-top: 1rem;
  margin-top: 0.5rem;
}

.link-stats-mini {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 0.8rem;
  color: var(--md-on-surface-variant);
}

.stat-pill {
  display: flex;
  align-items: center;
  gap: 4px;
}

.link-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

/* Sidebar Analytics Panel */
.analytics-panel {
  background: var(--md-surface-container);
  border: 1px solid var(--md-outline);
  border-radius: var(--radius-xl);
  padding: 1.5rem;
  box-shadow: var(--shadow-elevation-1);
}

.analytics-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 1rem;
  max-height: 480px;
  overflow-y: auto;
  padding-right: 4px;
}

.analytics-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  background: var(--md-surface-container-low);
  border-radius: var(--radius-lg);
  border: 1px solid var(--md-outline);
  font-size: 0.825rem;
}

.analytics-device-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.analytics-time {
  font-size: 0.725rem;
  color: var(--md-on-surface-variant);
}

/* Material Modals */
.modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(0, 0, 0, 0.75);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
}

.modal-backdrop.active {
  opacity: 1;
  pointer-events: auto;
}

.modal {
  background: var(--md-surface-container-high);
  border: 1px solid var(--md-outline);
  border-radius: var(--radius-xl);
  width: 90%;
  max-width: 560px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-elevation-3);
  transform: scale(0.95);
  transition: transform 0.2s ease;
}

.modal-backdrop.active .modal {
  transform: scale(1);
}

.modal-header {
  padding: 1.5rem;
  border-bottom: 1px solid var(--md-outline);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-title {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 600;
}

.modal-close {
  background: none;
  border: none;
  color: var(--md-on-surface-variant);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-close iconify-icon {
  font-size: 24px;
}

.modal-close:hover {
  color: var(--md-on-surface);
}

.modal-body {
  padding: 1.5rem;
}

.modal-footer {
  padding: 1.25rem 1.5rem;
  border-top: 1px solid var(--md-outline);
  display: flex;
  justify-content: flex-end;
  gap: 12px;
  background: var(--md-surface-container-low);
}

/* Material Form Inputs */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 1.25rem;
}

.form-label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--md-on-surface-variant);
  display: flex;
  align-items: center;
  gap: 6px;
}

.form-input {
  background: var(--md-surface-container-low);
  border: 1px solid var(--md-outline);
  border-radius: var(--radius-md);
  padding: 0.75rem 1rem;
  color: var(--md-on-surface);
  font-family: var(--font-sans);
  font-size: 0.9rem;
  outline: none;
  transition: border-color 0.2s ease;
}

.form-input:focus {
  border-color: var(--md-primary);
}

.form-help {
  font-size: 0.75rem;
  color: var(--md-on-surface-variant);
}

.input-prefix-group {
  display: flex;
  align-items: center;
  background: var(--md-surface-container-low);
  border: 1px solid var(--md-outline);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.input-prefix-group:focus-within {
  border-color: var(--md-primary);
}

.input-prefix {
  padding: 0.75rem 0.85rem;
  background: var(--md-surface-container-highest);
  color: var(--md-on-surface-variant);
  font-size: 0.85rem;
  border-right: 1px solid var(--md-outline);
  user-select: none;
}

.input-prefix-group input {
  border: none;
  border-radius: 0;
  background: transparent;
  flex: 1;
}

.input-prefix-group input:focus {
  box-shadow: none;
}

/* QR Code Studio */
.qr-preview-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: var(--md-surface-container-low);
  padding: 2rem;
  border-radius: var(--radius-xl);
  border: 1px solid var(--md-outline);
  margin-bottom: 1.5rem;
}

.qr-canvas-wrapper {
  background: #ffffff;
  padding: 1.25rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--md-outline);
  display: flex;
  flex-direction: column;
  align-items: center;
}

#qrCanvas {
  display: block;
}

.qr-frame-label {
  margin-top: 10px;
  color: #1e293b;
  font-weight: 700;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.qr-controls {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

/* Simulator Modal Styles */
.simulator-options {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-bottom: 1.5rem;
}

.sim-device-btn {
  background: var(--md-surface-container-low);
  border: 1px solid var(--md-outline);
  border-radius: var(--radius-lg);
  padding: 1rem 0.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--md-on-surface-variant);
  cursor: pointer;
  transition: all 0.2s ease;
}

.sim-device-btn:hover, .sim-device-btn.active {
  background: var(--md-primary-container);
  border-color: var(--md-primary);
  color: var(--md-on-primary-container);
}

.sim-device-btn iconify-icon {
  font-size: 28px;
}

.sim-result-box {
  background: var(--md-surface-container-low);
  border: 1px solid var(--md-outline);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  margin-top: 1rem;
}

.sim-step {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 12px;
  font-size: 0.88rem;
}

.sim-step-icon {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--md-primary-container);
  color: var(--md-primary);
  border: 1px solid rgba(168, 199, 255, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
  flex-shrink: 0;
}

.sim-url-output {
  word-break: break-all;
  color: var(--md-primary);
  font-family: monospace;
  font-size: 0.85rem;
  background: var(--md-surface-container-highest);
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  margin-top: 6px;
  border: 1px solid var(--md-outline);
}

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

.toast {
  background: var(--md-surface-container-high);
  color: var(--md-on-surface);
  border: 1px solid var(--md-outline);
  padding: 12px 18px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-elevation-2);
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.88rem;
}

.empty-state {
  text-align: center;
  padding: 3rem 1.5rem;
  background: var(--md-surface-container);
  border-radius: var(--radius-xl);
  border: 1px solid var(--md-outline);
  color: var(--md-on-surface-variant);
}