:root {
  --bg-dark: #0B1120;
  --surface-dark: #1E293B;
  --surface-card: #152033;
  --card-border: #334155;
  --primary-emerald: #10B981;
  --primary-emerald-light: #34D399;
  --accent-cyan: #06B6D4;
  --accent-blue: #3B82F6;
  --tracking-warning: #F59E0B;
  --tracking-warning-bg: #3B2506;
  --text-white: #F8FAFC;
  --text-muted: #94A3B8;
  --font-family: 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-mono: 'Fira Code', 'Cascadia Code', Consolas, Monaco, monospace;
}

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

body {
  background-color: var(--bg-dark);
  color: var(--text-white);
  font-family: var(--font-family);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 16px;
  -webkit-font-smoothing: antialiased;
}

.app-container {
  width: 100%;
  max-width: 680px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

/* Header */
header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  background-color: var(--surface-dark);
  border: 1px solid var(--card-border);
  border-radius: 16px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.brand-icon {
  width: 34px;
  height: 34px;
  background-color: rgba(16, 185, 129, 0.2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-emerald-light);
  font-size: 18px;
}

.brand h1 {
  font-size: 20px;
  font-weight: 900;
  letter-spacing: 0.5px;
}

.header-actions {
  display: flex;
  gap: 8px;
}

.btn-icon {
  background: transparent;
  border: none;
  color: var(--text-white);
  cursor: pointer;
  padding: 8px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background-color 0.2s;
}

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

/* Security Banner */
.security-banner {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  background-color: var(--surface-dark);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  font-size: 12px;
  color: var(--text-muted);
  font-weight: 600;
}

.security-banner svg {
  color: var(--primary-emerald);
  flex-shrink: 0;
}

/* Main Cards (Top & Bottom Boxes) */
.card {
  background-color: var(--surface-card);
  border: 1px solid var(--card-border);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}

.card-header {
  background-color: var(--surface-dark);
  padding: 14px 16px;
  border-bottom: 1px solid var(--card-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.card-title-group {
  display: flex;
  align-items: center;
  gap: 10px;
}

.card-icon {
  padding: 6px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.card-icon.blue {
  background-color: rgba(59, 130, 246, 0.2);
  color: var(--accent-blue);
}

.card-icon.emerald {
  background-color: rgba(16, 185, 129, 0.2);
  color: var(--primary-emerald-light);
}

.card-title h2 {
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.card-title p {
  font-size: 11px;
  color: var(--text-muted);
}

.badge {
  padding: 4px 8px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 700;
}

.badge.emerald {
  background-color: rgba(16, 185, 129, 0.15);
  color: var(--primary-emerald-light);
  border: 1px solid rgba(16, 185, 129, 0.4);
}

.card-body {
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.section-label {
  font-size: 10px;
  font-weight: 800;
  color: var(--text-muted);
  letter-spacing: 0.8px;
  text-transform: uppercase;
}

/* Manual Input */
.input-box {
  width: 100%;
  background-color: var(--bg-dark);
  border: 1px solid var(--card-border);
  border-radius: 10px;
  color: var(--text-white);
  padding: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  outline: none;
  resize: vertical;
}

.input-box:focus {
  border-color: var(--primary-emerald);
}

/* Base URL Box */
.base-url-box {
  background-color: var(--bg-dark);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.url-scheme-host {
  display: flex;
  align-items: center;
  gap: 8px;
}

.scheme-tag {
  background-color: rgba(59, 130, 246, 0.2);
  color: var(--accent-blue);
  font-size: 10px;
  font-weight: 800;
  padding: 2px 6px;
  border-radius: 4px;
}

.host-text {
  font-size: 14px;
  font-weight: 700;
}

.path-text {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-muted);
  word-break: break-all;
}

/* Quick Action Preset Toolbar */
.presets-toolbar {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 4px;
}

.preset-btn {
  background-color: var(--bg-dark);
  border: 1px solid var(--card-border);
  border-radius: 10px;
  padding: 8px 12px;
  color: var(--text-white);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
  transition: all 0.2s;
}

.preset-btn:hover, .preset-btn.active {
  border-color: var(--primary-emerald);
  background-color: rgba(16, 185, 129, 0.15);
}

.preset-btn.amber:hover, .preset-btn.amber.active {
  border-color: var(--tracking-warning);
  background-color: rgba(245, 158, 11, 0.15);
}

.preset-btn.red:hover, .preset-btn.red.active {
  border-color: #EF4444;
  background-color: rgba(239, 68, 68, 0.15);
}

.preset-info {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  font-size: 11px;
  font-weight: 700;
}

.preset-info span {
  font-size: 9px;
  color: var(--text-muted);
  font-weight: 400;
}

/* Parameters Checklist */
.params-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.param-tile {
  background-color: var(--bg-dark);
  border: 1px solid var(--card-border);
  border-radius: 10px;
  padding: 10px 12px;
  display: flex;
  align-items: flex-start;
  gap: 10px;
  cursor: pointer;
  transition: border-color 0.2s;
}

.param-tile.tracking {
  background-color: rgba(59, 37, 6, 0.4);
  border-color: rgba(245, 158, 11, 0.4);
}

.param-tile.disabled {
  opacity: 0.5;
}

.param-tile input[type="checkbox"] {
  width: 18px;
  height: 18px;
  accent-color: var(--primary-emerald);
  margin-top: 2px;
  cursor: pointer;
}

.param-details {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.param-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.param-key {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--text-white);
}

.param-tile.disabled .param-key,
.param-tile.disabled .param-value {
  text-decoration: line-through;
}

.param-tag {
  font-size: 9px;
  font-weight: 800;
  padding: 2px 6px;
  border-radius: 4px;
}

.param-tag.tracking {
  background-color: rgba(245, 158, 11, 0.2);
  color: var(--tracking-warning);
}

.param-tag.standard {
  background-color: rgba(59, 130, 246, 0.15);
  color: var(--accent-blue);
}

.param-value {
  font-size: 11px;
  color: var(--text-muted);
  word-break: break-all;
}

/* Cleaned Output Box */
.cleaned-url-box {
  background-color: var(--bg-dark);
  border: 1.5px solid var(--primary-emerald);
  border-radius: 12px;
  padding: 12px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--text-white);
  word-break: break-all;
  line-height: 1.4;
}

/* Action Buttons Grid - 3 Buttons in 1 Row with Equal Width */
.actions-grid {
  display: flex;
  gap: 10px;
  width: 100%;
}

.btn-action {
  flex: 1;
  width: 33.33%;
  background-color: var(--surface-dark);
  color: var(--text-white);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  padding: 12px 6px;
  font-weight: 700;
  font-size: 13px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  white-space: nowrap;
  transition: all 0.2s;
}

.btn-action:hover {
  background-color: rgba(255, 255, 255, 0.1);
  border-color: var(--text-muted);
}

.btn-action.primary {
  background-color: var(--primary-emerald);
  color: #000;
  border: none;
  font-weight: 800;
}

.btn-action.primary:hover {
  background-color: var(--primary-emerald-light);
}

.btn-action.amber {
  border-color: rgba(245, 158, 11, 0.4);
  color: var(--tracking-warning);
  background-color: rgba(245, 158, 11, 0.12);
}

.btn-action.amber:hover {
  border-color: var(--tracking-warning);
  background-color: rgba(245, 158, 11, 0.25);
}

.btn-action.red {
  border-color: rgba(239, 68, 68, 0.4);
  color: #F87171;
  background-color: rgba(239, 68, 68, 0.12);
}

.btn-action.red:hover {
  border-color: #EF4444;
  background-color: rgba(239, 68, 68, 0.25);
}

/* Toast */
.toast {
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  background-color: var(--surface-dark);
  border: 1px solid var(--primary-emerald);
  color: var(--text-white);
  padding: 10px 16px;
  border-radius: 12px;
  font-size: 13px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 8px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s;
}

.toast.show {
  opacity: 1;
  pointer-events: auto;
}