/* ==============================================================================
 * ApexMTA Pro - Apple Minimalist Design System
 * Based on DESIGN-apple.md Specifications
 * Pure White / Parchment Canvases, SF Pro Hierarchy, Action Blue (#0066cc),
 * Zero Glare, Zero Decorative Gradients, Precision Hairlines (1px).
 * ============================================================================== */

:root {
  /* Colors (Exact values from DESIGN-apple.md) */
  --color-primary: #0066cc;
  --color-primary-focus: #0071e3;
  --color-primary-on-dark: #2997ff;
  --color-primary-hover: #0077ed;

  --color-ink: #1d1d1f;
  --color-body: #1d1d1f;
  --color-ink-muted-80: #424245;
  --color-ink-muted-48: #86868b;
  
  --color-divider-soft: #f0f0f0;
  --color-hairline: #e5e5ea;
  --color-hairline-subtle: #f2f2f7;

  --color-canvas: #ffffff;
  --color-canvas-parchment: #f5f5f7;
  --color-surface-pearl: #fafafc;
  --color-surface-tile-1: #272729;
  --color-surface-black: #000000;
  --color-surface-chip: rgba(210, 210, 215, 0.64);

  /* Gentle Apple Status Tints */
  --status-green: #248a3d;
  --status-green-bg: #eaf6ed;
  --status-blue: #0066cc;
  --status-blue-bg: #eef6fc;
  --status-orange: #b45309;
  --status-orange-bg: #fef3c7;
  --status-red: #c5221f;
  --status-red-bg: #fde8e8;

  /* Backward-compatible token aliases mapped to Apple Minimalist design */
  --primary: var(--color-primary);
  --primary-hover: var(--color-primary-hover);
  --text-head: var(--color-ink);
  --text-body: var(--color-body);
  --text-secondary: var(--color-ink-muted-48);
  --text-muted: var(--color-ink-muted-48);
  --bg-page: var(--color-canvas-parchment);
  --bg-surface: var(--color-canvas);
  --border-subtle: var(--color-hairline);

  /* Typography */
  --font-display: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", system-ui, -apple-system, sans-serif;
  --font-text: -apple-system, BlinkMacSystemFont, "SF Pro Text", "SF Pro Display", system-ui, -apple-system, sans-serif;
  --font-mono: "SF Mono", Menlo, Consolas, Monaco, monospace;

  /* Border Radii */
  --rounded-none: 0px;
  --rounded-xs: 5px;
  --rounded-sm: 8px;
  --rounded-md: 11px;
  --rounded-lg: 18px;
  --rounded-pill: 9999px;

  /* Layout Spacing */
  --sidebar-width: 250px;
  --topbar-height: 52px;

  /* Elevation (Minimalist - zero eye strain) */
  --shadow-subtle: 0 1px 2px rgba(0, 0, 0, 0.03);
  --shadow-card: 0 2px 8px rgba(0, 0, 0, 0.02);
  --shadow-modal: 0 20px 48px rgba(0, 0, 0, 0.12), 0 1px 4px rgba(0, 0, 0, 0.04);
}

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

body {
  font-family: var(--font-text);
  background-color: var(--color-canvas-parchment);
  color: var(--color-body);
  font-size: 13.5px;
  line-height: 1.47;
  letter-spacing: -0.012em;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

code {
  font-family: var(--font-mono);
  background: var(--color-canvas-parchment);
  color: var(--color-ink);
  padding: 2px 6px;
  border-radius: var(--rounded-xs);
  font-size: 11.5px;
  border: 1px solid var(--color-hairline);
}

/* App Chassis */
.app-layout {
  display: flex;
  min-height: 100vh;
  background-color: var(--color-canvas-parchment);
}

/* ======================================================== */
/* SIDEBAR (Clean Apple Studio Navigation)                  */
/* ======================================================== */
.sidebar {
  width: var(--sidebar-width);
  height: 100vh;
  position: fixed;
  left: 0;
  top: 0;
  bottom: 0;
  background-color: var(--color-canvas);
  border-right: 1px solid var(--color-hairline);
  display: flex;
  flex-direction: column;
  z-index: 100;
  user-select: none;
}

.sidebar-brand {
  height: var(--topbar-height);
  padding: 0 18px;
  display: flex;
  align-items: center;
  border-bottom: 1px solid var(--color-hairline);
  background-color: var(--color-canvas);
}

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

.logo-icon-gradient {
  width: 28px;
  height: 28px;
  border-radius: var(--rounded-sm);
  background: var(--color-ink);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
}

.brand-info {
  display: flex;
  align-items: baseline;
  gap: 5px;
}

.brand-title {
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 600;
  color: var(--color-ink);
  letter-spacing: -0.02em;
}

.brand-badge {
  font-size: 10px;
  font-weight: 600;
  color: var(--color-primary);
  background-color: var(--status-blue-bg);
  padding: 1px 6px;
  border-radius: var(--rounded-pill);
}

/* Navigation Items */
.sidebar-nav {
  flex: 1;
  overflow-y: auto;
  padding: 14px 10px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.nav-group-label {
  font-size: 10.5px;
  font-weight: 600;
  color: var(--color-ink-muted-48);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 12px 10px 4px 10px;
}

.nav-item {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 7px 11px;
  border-radius: var(--rounded-sm);
  border: none;
  background: transparent;
  color: var(--color-ink-muted-80);
  font-family: var(--font-text);
  font-size: 13px;
  font-weight: 400;
  cursor: pointer;
  text-align: left;
  transition: all 0.12s ease-in-out;
}

.nav-item:hover {
  background-color: var(--color-canvas-parchment);
  color: var(--color-ink);
}

.nav-item.active {
  background-color: var(--color-canvas-parchment);
  color: var(--color-primary);
  font-weight: 600;
}

.nav-icon {
  flex-shrink: 0;
  stroke-width: 1.8;
  opacity: 0.85;
}

.nav-item.active .nav-icon {
  color: var(--color-primary);
  opacity: 1;
}

.nav-label {
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Subtle nav pill tags */
.nav-pill-badge, .nav-pill-badge-indigo, .nav-pill-ai, .nav-chip-green, .nav-chip-cyan {
  font-size: 10px;
  font-weight: 500;
  padding: 1px 6px;
  border-radius: var(--rounded-pill);
  background-color: var(--color-hairline-subtle);
  color: var(--color-ink-muted-48);
}

.nav-item.active .nav-pill-badge,
.nav-item.active .nav-pill-badge-indigo,
.nav-item.active .nav-chip-cyan {
  background-color: var(--status-blue-bg);
  color: var(--color-primary);
}

/* Sidebar User Footer */
.sidebar-user-footer {
  padding: 12px 14px;
  border-top: 1px solid var(--color-hairline);
  background-color: var(--color-canvas);
}

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

.avatar-ring {
  width: 30px;
  height: 30px;
  border-radius: var(--rounded-pill);
  background-color: var(--color-canvas-parchment);
  color: var(--color-ink);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: 600;
  border: 1px solid var(--color-hairline);
}

.user-details {
  overflow: hidden;
}

.user-name {
  font-size: 12px;
  font-weight: 600;
  color: var(--color-ink);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.user-role {
  font-size: 10px;
  color: var(--color-ink-muted-48);
  font-family: var(--font-mono);
}

/* ======================================================== */
/* MAIN VIEWPORT & FROSTED TOP BAR                          */
/* ======================================================== */
.main-viewport {
  margin-left: var(--sidebar-width);
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  background-color: var(--color-canvas-parchment);
}

.top-header {
  height: var(--topbar-height);
  background-color: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-hairline);
  padding: 0 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 90;
}

.header-title {
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 600;
  color: var(--color-ink);
  letter-spacing: -0.015em;
}

.header-subtitle {
  font-size: 11px;
  color: var(--color-ink-muted-48);
}

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

/* ======================================================== */
/* TOP TELEMETRY BAR (Apple Minimalist Horizontal Pills)    */
/* ======================================================== */
.telemetry-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.telemetry-pill {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 5px 12px;
  border-radius: var(--rounded-pill);
  background: var(--color-canvas-parchment);
  border: 1px solid var(--color-hairline);
  font-size: 12px;
  color: var(--color-ink-muted-80);
  transition: all 0.15s ease;
  user-select: none;
}

.telemetry-pill:hover {
  background: #ffffff;
  border-color: #d2d2d7;
  box-shadow: 0 1px 3px rgba(0,0,0,0.04);
}

.telemetry-pill strong {
  color: var(--color-ink);
  font-weight: 600;
}

.telemetry-text {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.pulse-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  display: inline-block;
  flex-shrink: 0;
}

.pulse-dot.green {
  background-color: var(--status-green);
  box-shadow: 0 0 0 2.5px rgba(36, 138, 61, 0.2);
}

.pulse-dot.cyan {
  background-color: #0284c7;
  box-shadow: 0 0 0 2.5px rgba(2, 132, 199, 0.2);
}

.pulse-dot.indigo {
  background-color: #4f46e5;
  box-shadow: 0 0 0 2.5px rgba(79, 70, 229, 0.2);
}

/* ======================================================== */
/* POWERMTA TERMINAL & COMMAND CENTER (macOS Pro Shell)    */
/* ======================================================== */
.terminal-command-bar {
  margin-bottom: 20px;
}

.terminal-quick-chips {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 14px;
}

.quick-chip-label {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--color-ink-muted-48);
  letter-spacing: 0.05em;
  margin-right: 4px;
}

.chip-btn {
  padding: 6px 13px;
  border-radius: var(--rounded-pill);
  background: var(--color-canvas-parchment);
  border: 1px solid var(--color-hairline);
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--color-ink);
  cursor: pointer;
  transition: all 0.15s ease;
  user-select: none;
}

.chip-btn:hover {
  background: var(--status-blue-bg);
  border-color: var(--color-primary);
  color: var(--color-primary);
  transform: translateY(-1px);
}

.terminal-input-group {
  display: flex;
  align-items: center;
  gap: 10px;
  background: #ffffff;
  padding: 5px 6px 5px 14px;
  border-radius: var(--rounded-sm);
  border: 1px solid var(--color-hairline);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.02);
  transition: all 0.15s ease;
}

.terminal-input-group:focus-within {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.12);
}

.terminal-prompt-prefix {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--color-primary);
  font-size: 14px;
}

.terminal-input {
  flex: 1;
  border: none;
  background: transparent;
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--color-ink);
  outline: none;
  padding: 6px 4px;
}

.terminal-input::placeholder {
  color: var(--color-ink-muted-48);
}

/* macOS Pro Terminal Canvas */
.terminal-window {
  background: #19191b;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 14px 40px rgba(0, 0, 0, 0.18), 0 1px 4px rgba(0, 0, 0, 0.08);
  border: 1px solid #2d2d30;
}

.terminal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 11px 18px;
  background: #242427;
  border-bottom: 1px solid #313134;
}

.terminal-dots {
  display: flex;
  align-items: center;
  gap: 7px;
}

.dot {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  display: inline-block;
}

.dot.red {
  background: #ff5f56;
  border: 1px solid #e0443e;
}

.dot.yellow {
  background: #ffbd2e;
  border: 1px solid #dea123;
}

.dot.green {
  background: #27c93f;
  border: 1px solid #1aab29;
}

.terminal-title {
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: #a1a1a6;
  font-weight: 500;
  letter-spacing: -0.01em;
}

.terminal-copy-btn {
  padding: 4px 11px;
  border-radius: var(--rounded-xs);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: #d1d1d6;
  font-size: 11px;
  font-family: var(--font-text);
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s ease;
}

.terminal-copy-btn:hover {
  background: rgba(255, 255, 255, 0.18);
  color: #ffffff;
}

.terminal-body {
  padding: 20px 22px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 1.65;
  color: #34d399;
  background: #19191b;
  min-height: 320px;
  max-height: 540px;
  overflow-y: auto;
  white-space: pre-wrap;
  word-break: break-all;
  margin: 0;
  border: none;
}

.terminal-body::-webkit-scrollbar {
  width: 7px;
}

.terminal-body::-webkit-scrollbar-track {
  background: #19191b;
}

.terminal-body::-webkit-scrollbar-thumb {
  background: #333336;
  border-radius: 4px;
}

.terminal-body::-webkit-scrollbar-thumb:hover {
  background: #444448;
}

/* Main Content Area */
.main-content-scroll {
  flex: 1;
  padding: 28px;
  max-width: 1400px;
  width: 100%;
  margin: 0 auto;
}

.view-panel {
  display: none;
}

.view-panel.active {
  display: block;
  animation: fadeIn 0.15s ease-out;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ======================================================== */
/* PANEL HERO                                               */
/* ======================================================== */
.panel-hero {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 22px;
}

.hero-title {
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 600;
  color: var(--color-ink);
  letter-spacing: -0.025em;
  line-height: 1.15;
}

.hero-subtitle {
  font-size: 13px;
  color: var(--color-ink-muted-48);
  margin-top: 4px;
}

.hero-badge-live {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  font-weight: 500;
  color: var(--status-green);
  background-color: var(--status-green-bg);
  padding: 4px 10px;
  border-radius: var(--rounded-pill);
  border: 1px solid rgba(36, 138, 61, 0.15);
}

.pulse-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--status-green);
}

/* ======================================================== */
/* APPLE BUTTON GRAMMAR ({rounded.pill} & {rounded.sm})     */
/* ======================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  font-family: var(--font-text);
  font-size: 13px;
  font-weight: 500;
  border-radius: var(--rounded-pill);
  cursor: pointer;
  border: 1px solid transparent;
  transition: all 0.12s ease;
  white-space: nowrap;
}

.btn:active {
  transform: scale(0.96);
}

/* Primary Action Blue Pill */
.btn-primary, .btn-glow {
  background-color: var(--color-primary);
  color: #ffffff;
  padding: 7px 16px;
  border-color: var(--color-primary);
}

.btn-primary:hover, .btn-glow:hover {
  background-color: var(--color-primary-hover);
  border-color: var(--color-primary-hover);
}

/* Secondary / Ghost Pill */
.btn-outline {
  background-color: var(--color-canvas);
  color: var(--color-primary);
  border-color: var(--color-hairline);
  padding: 7px 16px;
}

.btn-outline:hover {
  background-color: var(--color-canvas-parchment);
  border-color: var(--color-primary);
}

/* Utility Button ({rounded.sm}) */
.btn-secondary {
  background-color: var(--color-canvas-parchment);
  color: var(--color-ink);
  border: 1px solid var(--color-hairline);
  padding: 7px 14px;
  border-radius: var(--rounded-sm);
}

.btn-secondary:hover {
  background-color: #ebebeb;
}

.btn-xs {
  font-size: 11.5px;
  padding: 4px 10px;
}

.btn-sm {
  font-size: 12.5px;
  padding: 6px 14px;
}

/* ======================================================== */
/* KPI CARDS (Apple Store Utility Cards at {rounded.lg})    */
/* ======================================================== */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 14px;
  margin-bottom: 22px;
}

.kpi-card {
  background-color: var(--color-canvas);
  border: 1px solid var(--color-hairline);
  border-radius: var(--rounded-lg);
  padding: 18px 20px;
  box-shadow: var(--shadow-subtle);
  transition: border-color 0.15s ease;
}

.kpi-card:hover {
  border-color: #d1d1d6;
}

.kpi-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
}

.kpi-title {
  font-size: 12px;
  font-weight: 500;
  color: var(--color-ink-muted-48);
}

.kpi-icon {
  width: 26px;
  height: 26px;
  border-radius: var(--rounded-sm);
  background-color: var(--color-canvas-parchment);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-ink-muted-80);
}

.kpi-value-row {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin-bottom: 6px;
}

.kpi-value {
  font-family: var(--font-display);
  font-size: 26px;
  font-weight: 600;
  color: var(--color-ink);
  letter-spacing: -0.025em;
}

.kpi-trend {
  font-size: 11px;
  font-weight: 600;
  padding: 2px 7px;
  border-radius: var(--rounded-pill);
}

.kpi-trend.positive {
  background-color: var(--status-green-bg);
  color: var(--status-green);
}

.kpi-footer {
  font-size: 11.5px;
  color: var(--color-ink-muted-48);
}

/* ======================================================== */
/* SURFACE CARDS & DATA TABLES                              */
/* ======================================================== */
.surface-card {
  background-color: var(--color-canvas);
  border: 1px solid var(--color-hairline);
  border-radius: var(--rounded-lg);
  padding: 22px;
  box-shadow: var(--shadow-subtle);
  margin-bottom: 22px;
}

.card-header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.card-title {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 600;
  color: var(--color-ink);
  letter-spacing: -0.015em;
}

.card-caption {
  font-size: 12px;
  color: var(--color-ink-muted-48);
  margin-top: 2px;
}

.table-container {
  overflow-x: auto;
  border: 1px solid var(--color-hairline-subtle);
  border-radius: var(--rounded-md);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  background-color: var(--color-canvas);
}

.data-table th {
  background-color: var(--color-canvas-parchment);
  color: var(--color-ink-muted-48);
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 10px 14px;
  border-bottom: 1px solid var(--color-hairline);
}

.data-table td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--color-hairline-subtle);
  font-size: 13px;
  color: var(--color-ink);
  vertical-align: middle;
}

.data-table tbody tr:hover {
  background-color: #fafafc;
}

.data-table tbody tr:last-child td {
  border-bottom: none;
}

/* Badges & Chips */
.chip-badge {
  font-size: 11px;
  font-weight: 500;
  padding: 2px 8px;
  border-radius: var(--rounded-pill);
  display: inline-block;
}

.chip-indigo, .chip-cyan {
  background-color: var(--status-blue-bg);
  color: var(--color-primary);
}

.badge-success {
  font-size: 11px;
  font-weight: 500;
  padding: 2px 8px;
  border-radius: var(--rounded-pill);
  background-color: var(--status-green-bg);
  color: var(--status-green);
  display: inline-block;
}

/* ======================================================== */
/* FORMS & INPUTS ({rounded.pill} & {rounded.sm})           */
/* ======================================================== */
.form-group {
  margin-bottom: 14px;
}

.form-label {
  display: block;
  font-size: 12px;
  font-weight: 500;
  color: var(--color-ink);
  margin-bottom: 6px;
}

.form-control {
  width: 100%;
  padding: 9px 13px;
  border: 1px solid var(--color-hairline);
  border-radius: var(--rounded-sm);
  background-color: var(--color-canvas);
  font-family: var(--font-text);
  font-size: 13px;
  color: var(--color-ink);
  outline: none;
  transition: border-color 0.12s ease;
}

.form-control:focus {
  border-color: var(--color-primary-focus);
  box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.12);
}

.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-section-title {
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 600;
  color: var(--color-ink);
  margin: 18px 0 10px 0;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--color-hairline-subtle);
}

.form-actions-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--color-hairline);
}

.form-hint {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--color-ink-muted-48);
}

/* Engine Selector Cards */
.engine-selector-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-bottom: 16px;
}

.engine-card {
  border: 1.5px solid var(--color-hairline);
  border-radius: var(--rounded-md);
  padding: 16px;
  background-color: var(--color-canvas);
  cursor: pointer;
  transition: all 0.15s ease;
}

.engine-card.active {
  border-color: var(--color-primary);
  background-color: #fafcff;
}

.engine-badge {
  font-size: 10px;
  font-weight: 600;
  color: var(--color-ink-muted-48);
  letter-spacing: 0.03em;
  margin-bottom: 6px;
}

.engine-card.active .engine-badge {
  color: var(--color-primary);
}

.engine-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-ink);
  margin-bottom: 4px;
}

.engine-desc {
  font-size: 12px;
  color: var(--color-ink-muted-48);
  margin-bottom: 12px;
  line-height: 1.4;
}

/* ======================================================== */
/* TOOLS GRID & DIAGNOSTIC BOXES                            */
/* ======================================================== */
.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 16px;
}

.tool-card {
  background-color: var(--color-canvas);
  border: 1px solid var(--color-hairline);
  border-radius: var(--rounded-lg);
  padding: 20px;
  box-shadow: var(--shadow-subtle);
}

.tool-card.full-span {
  grid-column: 1 / -1;
}

.tool-card-header {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 14px;
}

.tool-icon {
  width: 32px;
  height: 32px;
  border-radius: var(--rounded-sm);
  background-color: var(--color-canvas-parchment);
  color: var(--color-ink);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.tool-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-ink);
}

.tool-desc {
  font-size: 12px;
  color: var(--color-ink-muted-48);
  margin-top: 2px;
}

.input-action-row {
  display: flex;
  gap: 8px;
  margin-bottom: 10px;
}

.tool-output-box {
  background-color: var(--color-canvas-parchment);
  border: 1px solid var(--color-hairline);
  border-radius: var(--rounded-sm);
  padding: 12px 14px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--color-ink);
  white-space: pre-wrap;
  word-break: break-all;
  max-height: 220px;
  overflow-y: auto;
}

/* AI Score Card */
.ai-score-card {
  margin-top: 18px;
  background-color: var(--color-canvas-parchment);
  border: 1px solid var(--color-hairline);
  border-radius: var(--rounded-md);
  padding: 18px;
}

.ai-score-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
}

.ai-score-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-ink);
}

.ai-score-number {
  font-size: 13px;
  font-weight: 600;
  color: var(--status-green);
}

.ai-feedback-content {
  font-size: 12.5px;
  color: var(--color-ink-muted-80);
  line-height: 1.5;
}

/* ======================================================== */
/* MODAL OVERLAY & CARD                                     */
/* ======================================================== */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.35);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2000;
  animation: fadeIn 0.15s ease-out;
}

.modal-card {
  background-color: var(--color-canvas);
  border-radius: var(--rounded-lg);
  border: 1px solid var(--color-hairline);
  width: 90%;
  max-width: 540px;
  box-shadow: var(--shadow-modal);
  overflow: hidden;
  animation: modalScale 0.18s cubic-bezier(0.16, 1, 0.3, 1);
}

.modal-card-lg {
  max-width: 660px;
}

@keyframes modalScale {
  from { opacity: 0; transform: scale(0.97) translateY(8px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}

.modal-header {
  padding: 16px 22px;
  border-bottom: 1px solid var(--color-hairline);
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  background-color: var(--color-canvas);
}

.modal-title {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 600;
  color: var(--color-ink);
  letter-spacing: -0.015em;
}

.modal-subtitle {
  font-size: 12px;
  color: var(--color-ink-muted-48);
  margin-top: 2px;
}

.modal-close-btn {
  background: transparent;
  border: none;
  font-size: 20px;
  line-height: 1;
  color: var(--color-ink-muted-48);
  cursor: pointer;
  padding: 2px 6px;
  border-radius: var(--rounded-xs);
  transition: all 0.12s;
}

.modal-close-btn:hover {
  background-color: var(--color-canvas-parchment);
  color: var(--color-ink);
}

.modal-form {
  padding: 20px 22px;
}

.modal-footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
  margin-top: 18px;
  padding-top: 14px;
  border-top: 1px solid var(--color-hairline);
}

.checkbox-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  background: var(--color-canvas-parchment);
  padding: 12px 14px;
  border-radius: var(--rounded-sm);
  border: 1px solid var(--color-hairline);
  margin-top: 10px;
}

.checkbox-label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--color-ink);
  cursor: pointer;
}

/* ======================================================== */
/* TOAST NOTIFICATIONS (Quiet Apple Capsule)                */
/* ======================================================== */
.toast-notification {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background-color: rgba(29, 29, 31, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  color: #ffffff;
  padding: 9px 18px;
  border-radius: var(--rounded-pill);
  font-size: 12.5px;
  font-weight: 500;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.15);
  z-index: 3000;
  animation: slideUp 0.15s ease-out;
}

@keyframes slideUp {
  from { transform: translateY(8px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

/* Utility Helpers */
.hidden { display: none !important; }
.text-emerald { color: var(--status-green) !important; }
.font-mono { font-family: var(--font-mono) !important; }