/* ==========================================================================
   MacPreCheck — Apple-Grade Design System & High-Polish UI/UX
   ========================================================================== */

:root {
  color-scheme: light dark;

  /* Light Theme */
  --bg-color: #f2f2f7;
  --surface-0: #ffffff;
  --surface-1: #ffffff;
  --surface-2: #f6f6f9;
  --surface-3: #ebebf0;
  --surface-hover: #e5e5ea;
  --border-color: rgba(0, 0, 0, 0.08);
  --border-subtle: rgba(0, 0, 0, 0.04);
  --border-strong: rgba(0, 0, 0, 0.16);
  --text-color: #1d1d1f;
  --text-muted: #86868b;
  --text-secondary: #515154;

  /* Brand Accents */
  --primary: #0071e3;
  --primary-hover: #0077ed;
  --primary-light: rgba(0, 113, 227, 0.1);
  --primary-glow: rgba(0, 113, 227, 0.25);
  
  --success: #34c759;
  --success-light: rgba(52, 199, 89, 0.12);
  --success-border: rgba(52, 199, 89, 0.3);
  
  --danger: #ff3b30;
  --danger-light: rgba(255, 59, 48, 0.12);
  --danger-border: rgba(255, 59, 48, 0.3);

  --warning: #ff9500;
  --warning-light: rgba(255, 149, 0, 0.12);
  --warning-border: rgba(255, 149, 0, 0.3);

  --purple: #af52de;
  --purple-light: rgba(175, 82, 222, 0.12);

  --card-shadow: 0 4px 24px rgba(0, 0, 0, 0.04), 0 1px 2px rgba(0, 0, 0, 0.02);
  --card-shadow-hover: 0 12px 36px rgba(0, 0, 0, 0.08), 0 2px 6px rgba(0, 0, 0, 0.04);
  --glass-bg: rgba(255, 255, 255, 0.85);
  --terminal-bg: #1c1c1e;
  --terminal-text: #f5f5f7;
  --terminal-border: #2c2c2e;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 26px;
  --ease-apple: cubic-bezier(0.16, 1, 0.3, 1);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg-color: #000000;
    --surface-0: #0a0a0c;
    --surface-1: #161618;
    --surface-2: #1e1e22;
    --surface-3: #28282e;
    --surface-hover: #32323a;
    --border-color: rgba(255, 255, 255, 0.1);
    --border-subtle: rgba(255, 255, 255, 0.05);
    --border-strong: rgba(255, 255, 255, 0.2);
    --text-color: #f5f5f7;
    --text-muted: #8e8e93;
    --text-secondary: #aeaeb2;

    --primary: #2997ff;
    --primary-hover: #47a6ff;
    --primary-light: rgba(41, 151, 255, 0.15);
    --primary-glow: rgba(41, 151, 255, 0.35);

    --success: #30d158;
    --success-light: rgba(48, 209, 88, 0.16);
    --success-border: rgba(48, 209, 88, 0.35);

    --danger: #ff453a;
    --danger-light: rgba(255, 69, 58, 0.16);
    --danger-border: rgba(255, 69, 58, 0.35);

    --warning: #ff9f0a;
    --warning-light: rgba(255, 159, 10, 0.16);
    --warning-border: rgba(255, 159, 10, 0.35);

    --card-shadow: 0 8px 32px rgba(0, 0, 0, 0.6), 0 1px 3px rgba(255, 255, 255, 0.02);
    --card-shadow-hover: 0 16px 48px rgba(0, 0, 0, 0.8), 0 2px 8px rgba(255, 255, 255, 0.04);
    --glass-bg: rgba(22, 22, 24, 0.88);
    --terminal-bg: #0d0d0e;
    --terminal-text: #00e5ff;
    --terminal-border: #222226;
  }
}

html.theme-dark {
  --bg-color: #000000;
  --surface-0: #0a0a0c;
  --surface-1: #161618;
  --surface-2: #1e1e22;
  --surface-3: #28282e;
  --surface-hover: #32323a;
  --border-color: rgba(255, 255, 255, 0.1);
  --border-subtle: rgba(255, 255, 255, 0.05);
  --border-strong: rgba(255, 255, 255, 0.2);
  --text-color: #f5f5f7;
  --text-muted: #8e8e93;
  --text-secondary: #aeaeb2;
  --primary: #2997ff;
  --primary-hover: #47a6ff;
  --primary-light: rgba(41, 151, 255, 0.15);
  --primary-glow: rgba(41, 151, 255, 0.35);
  --success: #30d158;
  --success-light: rgba(48, 209, 88, 0.16);
  --success-border: rgba(48, 209, 88, 0.35);
  --danger: #ff453a;
  --danger-light: rgba(255, 69, 58, 0.16);
  --danger-border: rgba(255, 69, 58, 0.35);
  --warning: #ff9f0a;
  --warning-light: rgba(255, 159, 10, 0.16);
  --warning-border: rgba(255, 159, 10, 0.35);
  --card-shadow: 0 8px 32px rgba(0, 0, 0, 0.6);
  --glass-bg: rgba(22, 22, 24, 0.88);
  --terminal-bg: #0d0d0e;
  --terminal-text: #00e5ff;
}

html.theme-light {
  --bg-color: #f2f2f7;
  --surface-0: #ffffff;
  --surface-1: #ffffff;
  --surface-2: #f6f6f9;
  --surface-3: #ebebf0;
  --surface-hover: #e5e5ea;
  --border-color: rgba(0, 0, 0, 0.08);
  --border-subtle: rgba(0, 0, 0, 0.04);
  --border-strong: rgba(0, 0, 0, 0.16);
  --text-color: #1d1d1f;
  --text-muted: #86868b;
  --text-secondary: #515154;
  --primary: #0071e3;
  --primary-hover: #0077ed;
  --primary-light: rgba(0, 113, 227, 0.1);
  --primary-glow: rgba(0, 113, 227, 0.25);
  --success: #34c759;
  --success-light: rgba(52, 199, 89, 0.12);
  --success-border: rgba(52, 199, 89, 0.3);
  --danger: #ff3b30;
  --danger-light: rgba(255, 59, 48, 0.12);
  --danger-border: rgba(255, 59, 48, 0.3);
  --warning: #ff9500;
  --warning-light: rgba(255, 149, 0, 0.12);
  --warning-border: rgba(255, 149, 0, 0.3);
  --card-shadow: 0 4px 24px rgba(0, 0, 0, 0.04);
  --glass-bg: rgba(255, 255, 255, 0.85);
  --terminal-bg: #1c1c1e;
  --terminal-text: #f5f5f7;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "Helvetica Neue", sans-serif;
  background-color: var(--bg-color);
  color: var(--text-color);
  line-height: 1.5;
  font-size: 15px;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

/* ==========================================================================
   Header & Floating Navigation
   ========================================================================== */
.app-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--glass-bg);
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  border-bottom: 1px solid var(--border-color);
  padding: 10px 24px;
  transition: all 0.2s var(--ease-apple);
}

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

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: inherit;
}

.brand-icon-wrap {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: linear-gradient(135deg, #0071e3, #34c759);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  box-shadow: 0 4px 14px rgba(0, 113, 227, 0.3);
}

.brand-title-wrap {
  display: flex;
  flex-direction: column;
}

.brand-title {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.4px;
  line-height: 1.2;
}

.brand-sub {
  font-size: 11.5px;
  color: var(--text-muted);
  font-weight: 500;
}

.header-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
}

.header-actions .btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
}

/* Navigation Segmented Control */
.app-nav {
  background: var(--surface-1);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 61px;
  z-index: 990;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.nav-container {
  max-width: 1240px;
  margin: 0 auto;
  display: flex;
  gap: 4px;
  padding: 8px 20px;
  overflow-x: auto;
  scrollbar-width: none;
}

.nav-container::-webkit-scrollbar {
  display: none;
}

.nav-tab {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 13.5px;
  font-weight: 600;
  padding: 8px 16px;
  border-radius: 20px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 7px;
  white-space: nowrap;
  transition: all 0.2s var(--ease-apple);
}

.nav-tab:hover {
  background: var(--surface-2);
  color: var(--text-color);
}

.nav-tab.active {
  background: var(--primary);
  color: #ffffff;
  box-shadow: 0 3px 12px var(--primary-glow);
}

/* ==========================================================================
   Hero & Quick Summary Bar
   ========================================================================== */
.hero-banner {
  max-width: 1240px;
  margin: 20px auto 0;
  padding: 0 20px;
}

.hero-card {
  background: linear-gradient(135deg, var(--surface-1) 0%, var(--surface-2) 100%);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 24px 28px;
  box-shadow: var(--card-shadow);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 20px;
  position: relative;
  overflow: hidden;
}

.hero-card::before {
  content: "";
  position: absolute;
  top: -50%;
  right: -20%;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, var(--primary-glow) 0%, transparent 70%);
  pointer-events: none;
}

.hero-info {
  flex: 1;
  min-width: 280px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 11.5px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  color: var(--primary);
  background: var(--primary-light);
  padding: 4px 10px;
  border-radius: 12px;
  margin-bottom: 8px;
}

.hero-title {
  font-size: 24px;
  font-weight: 800;
  letter-spacing: -0.5px;
  line-height: 1.25;
}

.hero-desc {
  font-size: 14px;
  color: var(--text-muted);
  margin-top: 6px;
  max-width: 600px;
}

/* Interactive Progress Meter */
.hero-progress-meter {
  display: flex;
  align-items: center;
  gap: 20px;
  background: var(--surface-0);
  border: 1px solid var(--border-color);
  padding: 16px 22px;
  border-radius: var(--radius-md);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.03);
}

.progress-circular {
  width: 58px;
  height: 58px;
  position: relative;
  display: grid;
  place-content: center;
}

.progress-circular svg {
  width: 100%;
  height: 100%;
  transform: rotate(-90deg);
}

.progress-circle-bg {
  fill: none;
  stroke: var(--surface-3);
  stroke-width: 5;
}

.progress-circle-bar {
  fill: none;
  stroke: var(--primary);
  stroke-width: 5;
  stroke-linecap: round;
  stroke-dasharray: 157;
  stroke-dashoffset: 157;
  transition: stroke-dashoffset 0.4s var(--ease-apple);
}

.progress-pct-label {
  position: absolute;
  font-size: 13px;
  font-weight: 800;
}

.progress-details {
  display: flex;
  flex-direction: column;
}

.progress-title {
  font-size: 14px;
  font-weight: 700;
}

.progress-subtitle {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 2px;
}

/* Quick Jump Pill Navigation */
.quick-jump-nav {
  max-width: 1240px;
  margin: 16px auto 0;
  padding: 0 20px;
  display: flex;
  align-items: center;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: none;
}

.quick-jump-nav::-webkit-scrollbar {
  display: none;
}

.quick-jump-pill {
  background: var(--surface-1);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  font-size: 12px;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: 16px;
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.15s ease;
  text-decoration: none;
}

.quick-jump-pill:hover {
  background: var(--surface-hover);
  color: var(--text-color);
}

/* ==========================================================================
   Main Content Layout
   ========================================================================== */
.main-wrapper {
  max-width: 1240px;
  margin: 20px auto;
  padding: 0 20px 100px;
}

.tab-content {
  display: none;
  animation: fadeIn 0.25s var(--ease-apple);
}

.tab-content.active {
  display: block;
}

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

/* Cards */
.card {
  background: var(--surface-1);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 26px;
  margin-bottom: 22px;
  box-shadow: var(--card-shadow);
  transition: all 0.25s var(--ease-apple);
}

.card:hover {
  box-shadow: var(--card-shadow-hover);
}

.card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
  flex-wrap: wrap;
}

.card-title-group {
  flex: 1;
}

.card-phase {
  font-size: 11.5px;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--primary);
  letter-spacing: 0.6px;
  margin-bottom: 4px;
}

.card-title {
  font-size: 19px;
  font-weight: 700;
  letter-spacing: -0.3px;
  line-height: 1.3;
}

.card-subtitle {
  font-size: 13.5px;
  color: var(--text-muted);
  margin-top: 4px;
}

/* Step Phase Status Pill */
.phase-status-pill {
  font-size: 12px;
  font-weight: 700;
  padding: 5px 12px;
  border-radius: 14px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--surface-2);
  color: var(--text-muted);
  border: 1px solid var(--border-color);
}

.phase-status-pill.completed {
  background: var(--success-light);
  color: var(--success);
  border-color: var(--success-border);
}

/* ==========================================================================
   Visual Comparison Mockups (MDM & Serial Diagrams)
   ========================================================================== */
.visual-comparison-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
  margin: 16px 0 20px;
}

.mockup-card {
  border-radius: var(--radius-md);
  padding: 16px;
  border: 2px solid;
  position: relative;
  background: var(--surface-2);
}

.mockup-card.danger {
  border-color: var(--danger);
  background: var(--danger-light);
}

.mockup-card.safe {
  border-color: var(--success);
  background: var(--success-light);
}

.mockup-badge {
  font-size: 11px;
  font-weight: 800;
  text-transform: uppercase;
  padding: 3px 8px;
  border-radius: 6px;
  margin-bottom: 10px;
  display: inline-block;
}

.mockup-card.danger .mockup-badge {
  background: var(--danger);
  color: #ffffff;
}

.mockup-card.safe .mockup-badge {
  background: var(--success);
  color: #ffffff;
}

.mockup-screen {
  background: #000000;
  color: #ffffff;
  border-radius: 8px;
  padding: 16px;
  font-family: -apple-system, sans-serif;
  text-align: center;
  min-height: 110px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  border: 1px solid #333333;
}

.mockup-screen-title {
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 4px;
}

.mockup-screen-desc {
  font-size: 11px;
  color: #aaaaaa;
}

/* Visual Chassis Serial Diagram */
.chassis-diagram {
  background: var(--surface-2);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 18px;
  margin: 16px 0;
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}

.chassis-svg {
  width: 140px;
  height: 90px;
  flex-shrink: 0;
}

.chassis-notes {
  flex: 1;
}

.chassis-notes-title {
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 4px;
}

.chassis-notes-p {
  font-size: 13px;
  color: var(--text-muted);
}

/* ==========================================================================
   Terminal Window Frame & Commands
   ========================================================================== */
.terminal-window {
  background: var(--terminal-bg);
  border: 1px solid var(--terminal-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  margin: 16px 0;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
}

.terminal-header {
  background: #252528;
  padding: 8px 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid #333336;
}

.terminal-dots {
  display: flex;
  gap: 6px;
}

.terminal-dot {
  width: 11px;
  height: 11px;
  border-radius: 50%;
}

.dot-red { background: #ff5f56; }
.dot-yellow { background: #ffbd2e; }
.dot-green { background: #27c93f; }

.terminal-title {
  font-size: 11.5px;
  font-weight: 600;
  color: #9e9ea6;
  font-family: ui-monospace, SFMono-Regular, monospace;
}

.terminal-body {
  padding: 14px 18px;
}

.cmd-code-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}

.cmd-code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 13px;
  color: var(--terminal-text);
  word-break: break-all;
}

.cmd-expected {
  font-size: 12px;
  color: #34c759;
  margin-top: 10px;
  border-top: 1px solid #2d2d30;
  padding-top: 8px;
  font-weight: 500;
}

.btn-copy {
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: #ffffff;
  padding: 6px 14px;
  border-radius: 8px;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.15s ease;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.btn-copy:hover {
  background: rgba(255, 255, 255, 0.24);
  transform: translateY(-1px);
}

.btn-copy:active {
  transform: translateY(0);
}

/* ==========================================================================
   Alerts & Callouts
   ========================================================================== */
.alert-box {
  padding: 16px 20px;
  border-radius: var(--radius-md);
  margin: 16px 0;
  font-size: 13.5px;
  line-height: 1.5;
  border-left: 4px solid;
}

.alert-danger {
  background: var(--danger-light);
  border-color: var(--danger);
  color: var(--text-color);
}

.alert-success {
  background: var(--success-light);
  border-color: var(--success);
  color: var(--text-color);
}

.alert-warning {
  background: var(--warning-light);
  border-color: var(--warning);
  color: var(--text-color);
}

.alert-info {
  background: var(--primary-light);
  border-color: var(--primary);
  color: var(--text-color);
}

.alert-title {
  font-weight: 700;
  margin-bottom: 4px;
  display: flex;
  align-items: center;
  gap: 6px;
}

/* ==========================================================================
   Checklists & Custom Checkbox Styling
   ========================================================================== */
.check-group {
  margin-top: 18px;
  background: var(--surface-2);
  border-radius: var(--radius-md);
  padding: 14px 18px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  border: 1px solid var(--border-subtle);
}

.check-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  cursor: pointer;
  font-size: 14px;
  user-select: none;
  padding: 6px 8px;
  border-radius: 8px;
  transition: background 0.12s ease;
}

.check-item:hover {
  background: var(--surface-3);
}

.check-item input[type="checkbox"] {
  appearance: none;
  -webkit-appearance: none;
  width: 22px;
  height: 22px;
  border: 2px solid var(--border-strong);
  border-radius: 6px;
  background: var(--surface-1);
  cursor: pointer;
  display: inline-grid;
  place-content: center;
  transition: all 0.15s var(--ease-apple);
  margin-top: 1px;
  flex-shrink: 0;
}

.check-item input[type="checkbox"]:checked {
  background: var(--success);
  border-color: var(--success);
  box-shadow: 0 2px 8px rgba(52, 199, 89, 0.4);
}

.check-item input[type="checkbox"]:checked::before {
  content: "";
  width: 11px;
  height: 6px;
  border-left: 2.2px solid #ffffff;
  border-bottom: 2.2px solid #ffffff;
  transform: rotate(-45deg) translate(1px, -1px);
}

.check-item.checked span {
  color: var(--text-muted);
  text-decoration: line-through;
}

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 13.5px;
  font-weight: 600;
  padding: 10px 18px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  border: none;
  transition: all 0.2s var(--ease-apple);
  text-decoration: none;
  user-select: none;
}

.btn-primary {
  background: var(--primary);
  color: #ffffff;
  box-shadow: 0 4px 14px var(--primary-glow);
}

.btn-primary:hover {
  background: var(--primary-hover);
  transform: translateY(-1px);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-secondary {
  background: var(--surface-3);
  color: var(--text-color);
  border: 1px solid var(--border-color);
}

.btn-secondary:hover {
  background: var(--surface-hover);
}

.btn-outline {
  background: transparent;
  border: 1px solid var(--border-color);
  color: var(--text-color);
}

.btn-outline:hover {
  background: var(--surface-2);
}

/* Interactive Battery Calculator Mini-Tool */
.battery-calc-card {
  background: var(--surface-2);
  border-radius: var(--radius-md);
  padding: 20px;
  margin: 18px 0;
  border: 1px solid var(--border-color);
}

.calc-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 14px;
  margin: 12px 0 16px;
}

.input-group label {
  display: block;
  font-size: 12px;
  font-weight: 700;
  color: var(--text-secondary);
  margin-bottom: 6px;
}

.input-group input,
.input-group select {
  width: 100%;
  padding: 10px 14px;
  border-radius: 10px;
  border: 1px solid var(--border-color);
  background: var(--surface-1);
  color: var(--text-color);
  font-size: 14px;
  outline: none;
  transition: border-color 0.15s ease;
}

.input-group input:focus,
.input-group select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-light);
}

.calc-result-box {
  padding: 14px 18px;
  border-radius: 12px;
  font-size: 14px;
  font-weight: 500;
  margin-top: 14px;
}

/* ==========================================================================
   Terminal Output Analyzer
   ========================================================================== */
.analyzer-console {
  background: var(--terminal-bg);
  border-radius: var(--radius-md);
  border: 1px solid var(--terminal-border);
  overflow: hidden;
  box-shadow: 0 12px 36px rgba(0,0,0,0.4);
  position: relative;
}

.analyzer-textarea {
  width: 100%;
  height: 200px;
  background: transparent;
  color: var(--terminal-text);
  font-family: ui-monospace, Menlo, Monaco, monospace;
  font-size: 13px;
  border: none;
  padding: 16px 20px;
  resize: vertical;
  outline: none;
  line-height: 1.6;
}

.analyzer-actions {
  background: #1c1c1f;
  padding: 12px 18px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  border-top: 1px solid var(--terminal-border);
}

.scanner-beam {
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--primary), transparent);
  width: 100%;
  position: absolute;
  top: 0;
  display: none;
  animation: scanBeam 1s infinite linear;
}

.scanner-beam.active {
  display: block;
}

@keyframes scanBeam {
  0% { transform: translateY(0); }
  100% { transform: translateY(200px); }
}

.scorecard-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
  margin-top: 22px;
}

.score-card {
  background: var(--surface-2);
  border-radius: var(--radius-md);
  padding: 20px;
  border: 1px solid var(--border-color);
  border-top: 5px solid;
  transition: transform 0.2s ease;
}

.score-card:hover {
  transform: translateY(-2px);
}

.score-card.pass { border-top-color: var(--success); }
.score-card.fail { border-top-color: var(--danger); }
.score-card.warning { border-top-color: var(--warning); }

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

.score-title {
  font-size: 15px;
  font-weight: 700;
}

.score-desc {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.5;
}

/* ==========================================================================
   Media Testing Suite (Mic Waveform, Speakers & Camera)
   ========================================================================== */
.media-test-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 20px;
  margin-top: 18px;
}

.media-card {
  background: var(--surface-2);
  border-radius: var(--radius-md);
  padding: 22px;
  border: 1px solid var(--border-color);
}

.media-header {
  display: flex;
  gap: 14px;
  margin-bottom: 16px;
}

.media-icon-badge {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--primary-light);
  color: var(--primary);
  display: grid;
  place-content: center;
  font-size: 22px;
  flex-shrink: 0;
}

.media-desc {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 3px;
}

/* Audio Visualizer Canvas */
.audio-visualizer-canvas {
  width: 100%;
  height: 48px;
  background: var(--surface-1);
  border-radius: 8px;
  margin: 12px 0;
  display: block;
}

.speaker-controls {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 10px;
}

.camera-preview-wrapper {
  margin-top: 16px;
  height: 220px;
  background: #000000;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  position: relative;
  border: 1px solid var(--border-color);
}

.camera-video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.camera-placeholder {
  color: #888888;
  font-size: 13px;
  text-align: center;
  padding: 14px;
}

/* ==========================================================================
   Model Benchmark Showcase
   ========================================================================== */
.model-picker-tabs {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 12px;
  margin-bottom: 20px;
  scrollbar-width: none;
}

.model-picker-tabs::-webkit-scrollbar {
  display: none;
}

.model-btn {
  padding: 10px 18px;
  border-radius: 14px;
  border: 1px solid var(--border-color);
  background: var(--surface-1);
  color: var(--text-color);
  font-size: 13.5px;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.2s ease;
}

.model-btn:hover {
  background: var(--surface-2);
}

.model-btn.active {
  background: var(--primary);
  color: #ffffff;
  border-color: var(--primary);
  box-shadow: 0 4px 14px var(--primary-glow);
}

.specs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 14px;
  margin-bottom: 22px;
}

.spec-box {
  background: var(--surface-2);
  padding: 14px 18px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
}

.spec-label {
  font-size: 11px;
  text-transform: uppercase;
  color: var(--text-muted);
  font-weight: 700;
  letter-spacing: 0.5px;
}

.spec-val {
  font-size: 14.5px;
  font-weight: 700;
  margin-top: 4px;
}

.benchmark-table-card {
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border-color);
  margin: 18px 0;
}

.benchmark-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13.5px;
}

.benchmark-table th,
.benchmark-table td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--border-color);
}

.benchmark-table th {
  background: var(--surface-2);
  font-weight: 700;
  font-size: 12px;
  text-transform: uppercase;
  color: var(--text-muted);
  letter-spacing: 0.5px;
}

/* ==========================================================================
   Negotiation Calculator & Cash Memo
   ========================================================================== */
.discount-total-card {
  background: linear-gradient(135deg, rgba(0, 113, 227, 0.12), rgba(52, 199, 89, 0.12));
  border: 2px solid var(--primary);
  border-radius: var(--radius-lg);
  padding: 24px;
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.discount-amount {
  font-size: 38px;
  font-weight: 800;
  color: var(--primary);
  letter-spacing: -0.5px;
}

.memo-clause-card {
  background: var(--surface-2);
  border-radius: var(--radius-md);
  padding: 20px;
  margin-bottom: 16px;
  border: 1px solid var(--border-color);
}

.memo-clause-title {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 8px;
}

.memo-clause-text {
  font-family: ui-monospace, Menlo, monospace;
  font-size: 12.5px;
  background: var(--surface-1);
  padding: 14px;
  border-radius: 10px;
  border: 1px solid var(--border-color);
  margin-bottom: 10px;
  white-space: pre-wrap;
  line-height: 1.5;
}

.memo-bangla-note {
  font-size: 13.5px;
  color: var(--text-secondary);
  font-weight: 500;
}

/* ==========================================================================
   Toast Notifications
   ========================================================================== */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 100000;
  display: flex;
  flex-direction: column;
  gap: 8px;
  pointer-events: none;
}

.toast {
  background: #1c1c1e;
  color: #ffffff;
  padding: 12px 20px;
  border-radius: 14px;
  font-size: 13.5px;
  font-weight: 600;
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.45);
  display: flex;
  align-items: center;
  gap: 8px;
  animation: slideIn 0.25s var(--ease-apple);
  pointer-events: auto;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

@keyframes slideIn {
  from { opacity: 0; transform: translateY(14px); }
  to { opacity: 1; transform: translateY(0); }
}

.hidden {
  display: none !important;
}

.text-success { color: var(--success); }
.text-danger { color: var(--danger); }
.text-warning { color: var(--warning); }
.text-primary { color: var(--primary); }

/* Responsive adjustments */
@media (max-width: 768px) {
  .header-inner {
    flex-direction: row;
  }
  .brand-sub {
    display: none;
  }
  /* Collapse the header actions to their icons. Four labelled buttons
     overflowed the viewport, pushing Reset off-screen entirely; each button
     keeps an aria-label so the icon-only form stays accessible. Shrinking in
     place rather than wrapping keeps the header one row tall, which the
     sticky nav below depends on for its offset. */
  .app-header {
    padding: 10px 14px;
  }
  .header-actions {
    gap: 6px;
  }
  .header-actions .btn-label {
    display: none;
  }
  .header-actions .btn {
    padding: 8px 11px;
    font-size: 15px;
    gap: 0;
  }
  .hero-card {
    padding: 20px;
  }
  .hero-title {
    font-size: 20px;
  }
  .hero-progress-meter {
    width: 100%;
    justify-content: space-between;
  }
  .cmd-code-row {
    flex-direction: column;
    align-items: flex-start;
  }
  .btn-copy {
    width: 100%;
    justify-content: center;
  }
  .discount-amount {
    font-size: 30px;
  }
}