/* ==========================================================================
   Hush Landing Page Stylesheet
   Smoky Glass & Periwinkle Design System
   ========================================================================== */

:root {
  --bg-base: #0B0D12;
  --bg-gradient: radial-gradient(circle at 50% -20%, rgba(182, 184, 208, 0.12) 0%, rgba(11, 13, 18, 0.98) 60%), #0B0D12;
  --surface-glass: rgba(22, 26, 38, 0.72);
  --surface-glass-hover: rgba(30, 36, 52, 0.85);
  --surface-raised: rgba(34, 40, 58, 0.75);
  --border-glass: rgba(182, 184, 208, 0.14);
  --border-glass-strong: rgba(182, 184, 208, 0.28);
  --border-specular: rgba(255, 255, 255, 0.08);

  --text-primary: #EFF1F8;
  --text-secondary: #9DA2BA;
  --text-muted: #6C7188;

  --accent-periwinkle: #B6B8D0;
  --accent-hover: #CBD0EC;
  --accent-glow: rgba(182, 184, 208, 0.28);
  --accent-mint: #7BE0CA;
  --accent-mint-glow: rgba(123, 224, 202, 0.45);

  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', Menlo, monospace;

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-xl: 20px;
  --radius-full: 9999px;

  --shadow-card: inset 0 1px 0 var(--border-specular), 0 12px 40px rgba(0, 0, 0, 0.55);
}

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

html {
  scroll-behavior: smooth;
}

body {
  background-color: var(--bg-base);
  background: var(--bg-gradient);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Container */
.container {
  width: 100%;
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Glass Card */
.glass-card {
  background: var(--surface-glass);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.glass-card:hover {
  border-color: var(--border-glass-strong);
}

/* Navigation */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(11, 13, 18, 0.82);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-glass);
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1140px;
  margin: 0 auto;
  padding: 14px 24px;
}

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

.logo-orb {
  border-radius: 50%;
  filter: drop-shadow(0 2px 8px var(--accent-glow));
}

.logo-text {
  display: flex;
  align-items: center;
  gap: 6px;
}

.logo-name {
  font-size: 20px;
  font-weight: 750;
  letter-spacing: -0.03em;
  background: linear-gradient(180deg, #FFFFFF 0%, #D8DAEC 60%, #9DA2BA 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.logo-tag {
  font-size: 9.5px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-periwinkle);
  background: rgba(182, 184, 208, 0.12);
  border: 1px solid rgba(182, 184, 208, 0.24);
  padding: 2px 6px;
  border-radius: 4px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 20px;
}

.nav-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  transition: color 0.15s ease;
}

.nav-links a:hover {
  color: var(--text-primary);
}

.nav-cta {
  background: var(--accent-periwinkle) !important;
  color: #11131C !important;
  font-weight: 600 !important;
  padding: 6px 14px;
  border-radius: var(--radius-md);
  transition: background 0.15s ease, transform 0.15s ease !important;
}

.nav-cta:hover {
  background: var(--accent-hover) !important;
  transform: translateY(-1px);
}

/* Hero Section */
.hero {
  padding: 70px 0 60px;
  text-align: center;
}

.hero-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(182, 184, 208, 0.1);
  border: 1px solid var(--border-glass-strong);
  padding: 6px 16px;
  border-radius: var(--radius-full);
  font-size: 12.5px;
  font-weight: 600;
  color: var(--accent-periwinkle);
  margin-bottom: 24px;
  box-shadow: 0 0 18px rgba(182, 184, 208, 0.12);
}

.pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-mint);
  box-shadow: 0 0 8px var(--accent-mint-glow);
}

.hero-title {
  font-size: 46px;
  font-weight: 800;
  letter-spacing: -0.035em;
  line-height: 1.15;
  margin-bottom: 18px;
  max-width: 860px;
  margin-left: auto;
  margin-right: auto;
  background: linear-gradient(180deg, #FFFFFF 15%, #E4E6F6 60%, #9CA2BE 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: 18px;
  color: var(--text-secondary);
  max-width: 640px;
  margin: 0 auto 36px;
  line-height: 1.5;
}

.hero-actions {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 14px;
  margin-bottom: 48px;
  flex-wrap: wrap;
}

.btn-primary {
  background: var(--accent-periwinkle);
  color: #11131C;
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  padding: 12px 24px;
  border-radius: var(--radius-md);
  box-shadow: 0 4px 16px var(--accent-glow);
  transition: background 0.15s ease, transform 0.15s ease;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

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

.btn-secondary {
  background: var(--surface-glass);
  color: var(--text-primary);
  font-size: 14px;
  font-weight: 500;
  text-decoration: none;
  padding: 12px 22px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-glass);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  transition: background 0.15s ease, border-color 0.15s ease, transform 0.15s ease;
}

.btn-secondary:hover {
  background: var(--surface-glass-hover);
  border-color: var(--border-glass-strong);
  transform: translateY(-1px);
}

/* Chrome Web Store Action Button */
.btn-chrome {
  background: linear-gradient(135deg, #2D3748 0%, #1A202C 100%);
  color: #FFFFFF !important;
  border: 1px solid rgba(182, 184, 208, 0.35);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4), 0 0 25px rgba(182, 184, 208, 0.2);
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 24px;
  border-radius: var(--radius-md);
  text-decoration: none;
  font-weight: 600;
  font-size: 14.5px;
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.btn-chrome:hover {
  transform: translateY(-2px);
  border-color: rgba(255, 255, 255, 0.5);
  box-shadow: 0 6px 25px rgba(0, 0, 0, 0.5), 0 0 35px rgba(182, 184, 208, 0.35);
}

/* Trust Badges Bar */
.trust-badges-bar {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
  margin-top: -15px;
  margin-bottom: 40px;
  font-size: 13px;
  color: var(--text-secondary);
}

.trust-badge-item {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}

/* Interactive Sandbox Container */
.demo-sandbox-card {
  max-width: 540px;
  margin: 0 auto;
  padding: 22px;
  text-align: left;
  border: 1px solid var(--border-glass-strong);
  box-shadow: 0 16px 50px rgba(0, 0, 0, 0.65), 0 0 30px rgba(182, 184, 208, 0.1);
  position: relative;
  overflow: hidden;
}

.demo-hud-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--border-glass);
  margin-bottom: 14px;
}

.demo-audio-toggle {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  background: rgba(30, 36, 52, 0.9);
  border: 1px solid var(--border-glass);
  color: var(--text-secondary);
  font-size: 12px;
  font-weight: 600;
  padding: 5px 12px;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all 0.2s ease;
}

.demo-audio-toggle:hover {
  border-color: var(--accent-periwinkle);
  color: var(--text-primary);
}

.demo-audio-toggle.is-active {
  background: rgba(123, 224, 202, 0.15);
  border-color: var(--accent-mint);
  color: var(--accent-mint);
  box-shadow: 0 0 12px var(--accent-mint-glow);
}

/* Visualizer Bars */
.demo-visualizer {
  display: flex;
  align-items: flex-end;
  gap: 3px;
  height: 20px;
  padding: 0 4px;
}

.vis-bar {
  width: 3px;
  height: 4px;
  background: var(--accent-mint);
  border-radius: 2px;
  opacity: 0.25;
  transition: height 0.08s ease, opacity 0.15s ease;
}

/* Demo Tab Rows */
.demo-tab-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 16px;
}

.demo-tab-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  background: var(--surface-raised);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-glass);
  transition: all 0.18s ease;
}

.demo-tab-row:hover {
  border-color: var(--border-glass-strong);
  background: rgba(38, 46, 68, 0.85);
}

.demo-tab-row.is-muted {
  opacity: 0.55;
  filter: grayscale(0.5);
}

.demo-tab-icon {
  width: 18px;
  height: 18px;
  border-radius: 4px;
  object-fit: contain;
  flex-shrink: 0;
}

.demo-tab-title {
  font-size: 13px;
  font-weight: 550;
  color: var(--text-primary);
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.demo-slider-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.demo-slider {
  -webkit-appearance: none;
  appearance: none;
  background: transparent;
  width: 78px;
  height: 20px;
  cursor: pointer;
  margin: 0;
}

.demo-slider:focus {
  outline: none;
}

.demo-slider::-webkit-slider-runnable-track {
  height: 4px;
  background: rgba(46, 54, 76, 0.85);
  border-radius: 2px;
  border: 1px solid rgba(182, 184, 208, 0.12);
}

.demo-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 13px;
  height: 13px;
  border-radius: 50%;
  background: var(--accent-periwinkle);
  border: 1.5px solid rgba(255, 255, 255, 0.3);
  margin-top: -4.5px;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.5), 0 0 6px var(--accent-glow);
  transition: transform 0.15s ease, background 0.15s ease;
}

.demo-slider:hover::-webkit-slider-thumb {
  transform: scale(1.2);
  background: #FFFFFF;
}

.demo-vol-val {
  font-variant-numeric: tabular-nums;
  font-size: 12px;
  font-weight: 600;
  color: var(--accent-periwinkle);
  min-width: 36px;
  text-align: right;
}

.demo-btn-mute {
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 4px;
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color 0.15s ease, background 0.15s ease;
}

.demo-btn-mute:hover {
  color: var(--text-primary);
  background: rgba(182, 184, 208, 0.12);
}

.demo-btn-mute.is-muted {
  color: #F87171;
}

/* Master Category Group Box */
.demo-group-box {
  background: rgba(22, 26, 38, 0.6);
  border: 1px dashed var(--border-glass-strong);
  border-radius: var(--radius-md);
  padding: 10px 12px;
  margin-bottom: 14px;
}

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

.demo-group-title {
  font-size: 12px;
  font-weight: 650;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 6px;
}

/* Focus Presets Bar */
.focus-presets-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
  padding-top: 14px;
  border-top: 1px solid var(--border-glass);
}

.focus-presets-label {
  font-size: 11px;
  font-weight: 650;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-right: 2px;
}

.focus-preset-btn {
  background: rgba(30, 36, 52, 0.7);
  border: 1px solid var(--border-glass);
  color: var(--text-secondary);
  font-size: 11px;
  font-weight: 550;
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.15s ease;
}

.focus-preset-btn:hover {
  border-color: var(--accent-periwinkle);
  color: var(--text-primary);
  background: rgba(38, 46, 68, 0.9);
}

.focus-preset-btn.is-active {
  background: rgba(182, 184, 208, 0.2);
  border-color: var(--accent-periwinkle);
  color: var(--text-primary);
}

.demo-focus-notice {
  font-size: 12px;
  color: var(--accent-mint);
  margin-top: 10px;
  min-height: 18px;
  display: flex;
  align-items: center;
  gap: 6px;
  opacity: 0;
  transition: opacity 0.25s ease;
}

.demo-focus-notice.is-visible {
  opacity: 1;
}

/* Web Toast */
.web-toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: rgba(22, 26, 38, 0.95);
  border: 1px solid var(--accent-mint);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.7), 0 0 15px var(--accent-mint-glow);
  color: var(--text-primary);
  font-size: 13.5px;
  font-weight: 550;
  padding: 12px 18px;
  border-radius: var(--radius-md);
  z-index: 1000;
  transform: translateY(40px);
  opacity: 0;
  pointer-events: none;
  transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.25s ease;
}

.web-toast.is-active {
  transform: translateY(0);
  opacity: 1;
}

/* Comparison Table */
.comparison-table-wrap {
  overflow-x: auto;
  padding: 20px;
}

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

.comparison-table th {
  font-size: 12.5px;
  font-weight: 700;
  padding: 14px 18px;
  border-bottom: 2px solid var(--border-glass-strong);
  color: var(--text-secondary);
}

.comparison-table th.col-hush {
  color: var(--accent-periwinkle);
  background: rgba(182, 184, 208, 0.08);
  border-top-left-radius: var(--radius-md);
  border-top-right-radius: var(--radius-md);
}

.comparison-table td {
  padding: 13px 18px;
  border-bottom: 1px solid var(--border-glass);
  font-size: 13.5px;
  color: var(--text-secondary);
}

.comparison-table td.col-hush {
  background: rgba(182, 184, 208, 0.04);
  font-weight: 600;
  color: var(--text-primary);
}

/* FAQ Accordion */
.faq-accordion-header {
  width: 100%;
  background: transparent;
  border: none;
  text-align: left;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  padding: 0;
  color: var(--text-primary);
  font-family: inherit;
}

.faq-accordion-header h3 {
  font-size: 16px;
  font-weight: 650;
  margin: 0;
}

.faq-chevron {
  color: var(--accent-periwinkle);
  transition: transform 0.25s ease;
  flex-shrink: 0;
  margin-left: 12px;
}

.faq-card.is-open .faq-chevron {
  transform: rotate(180deg);
}

.faq-accordion-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.25s ease;
  opacity: 0;
}

.faq-card.is-open .faq-accordion-content {
  max-height: 200px;
  opacity: 1;
  margin-top: 12px;
}

.flow-step {
  cursor: pointer;
  transition: all 0.2s ease;
}

.flow-step.is-highlighted {
  border-color: var(--accent-periwinkle);
  background: rgba(38, 46, 68, 0.95);
  box-shadow: 0 0 15px rgba(182, 184, 208, 0.15);
}

/* Sections */
.section-wrap {
  padding: 70px 0;
}

.section-head {
  text-align: center;
  margin-bottom: 44px;
}

.section-tag {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-periwinkle);
  margin-bottom: 8px;
}

.section-title {
  font-size: 32px;
  font-weight: 750;
  letter-spacing: -0.025em;
  color: var(--text-primary);
  margin-bottom: 12px;
}

.section-desc {
  font-size: 16px;
  color: var(--text-secondary);
  max-width: 580px;
  margin: 0 auto;
}

/* Features Grid */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
}

.feature-card {
  padding: 26px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.feature-icon-wrap {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: var(--surface-raised);
  border: 1px solid var(--border-glass);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  color: var(--accent-periwinkle);
  margin-bottom: 4px;
}

.feature-title {
  font-size: 18px;
  font-weight: 650;
  color: var(--text-primary);
}

.feature-text {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.55;
}

/* Architecture Section */
.arch-card {
  padding: 36px;
}

.arch-flow {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 18px;
  margin-top: 24px;
}

.flow-step {
  padding: 18px;
  background: var(--surface-raised);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
}

.flow-step-num {
  font-size: 11px;
  font-weight: 700;
  color: var(--accent-periwinkle);
  text-transform: uppercase;
  margin-bottom: 6px;
}

.flow-step-title {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 6px;
}

.flow-step-text {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.45;
}

/* Keyboard Table */
.table-card {
  overflow-x: auto;
  padding: 20px;
}

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

.shortcut-table th {
  font-size: 12px;
  font-weight: 650;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-glass);
}

.shortcut-table td {
  font-size: 14px;
  padding: 14px 16px;
  border-bottom: 1px solid var(--border-glass);
  color: var(--text-secondary);
}

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

kbd {
  background: rgba(38, 44, 62, 0.8);
  border: 1px solid var(--border-glass-strong);
  border-radius: 5px;
  padding: 3px 7px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-primary);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.4);
}

/* FAQ Grid */
.faq-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 20px;
}

.faq-card {
  padding: 24px;
}

.faq-card h3 {
  font-size: 16px;
  font-weight: 650;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.faq-card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.55;
}

/* Privacy Page Specifics */
.page-main {
  padding: 60px 0 80px;
}

.privacy-container {
  max-width: 820px;
  margin: 0 auto;
  padding: 44px;
}

.privacy-container h1 {
  font-size: 34px;
  font-weight: 750;
  letter-spacing: -0.025em;
  margin-bottom: 8px;
}

.privacy-updated {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 32px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--border-glass);
}

.privacy-container section {
  margin-bottom: 30px;
}

.privacy-container h2 {
  font-size: 20px;
  font-weight: 650;
  color: var(--text-primary);
  margin-bottom: 12px;
}

.privacy-container p, .privacy-container ul {
  font-size: 15px;
  color: var(--text-secondary);
  margin-bottom: 14px;
}

.privacy-container ul {
  padding-left: 24px;
}

.privacy-container li {
  margin-bottom: 8px;
}

.perm-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin: 16px 0;
}

.perm-card {
  padding: 16px;
  background: var(--surface-raised);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
}

.perm-card h3 {
  font-size: 14px;
  color: var(--accent-periwinkle);
  margin-bottom: 6px;
}

.perm-card p {
  font-size: 13px;
  margin-bottom: 0;
}

.btn-link {
  color: var(--accent-periwinkle);
  text-decoration: none;
  font-weight: 600;
}

.btn-link:hover {
  text-decoration: underline;
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--border-glass);
  padding: 36px 0;
  background: rgba(11, 13, 18, 0.9);
}

.footer-container {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 13.5px;
  color: var(--text-muted);
}

.footer-links {
  display: flex;
  gap: 18px;
}

.footer-links a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 0.15s ease;
}

.footer-links a:hover {
  color: var(--text-primary);
}

/* Responsive */
@media (max-width: 768px) {
  .hero-title {
    font-size: 34px;
  }
  .hero-subtitle {
    font-size: 16px;
  }
  .nav-links {
    gap: 12px;
  }
  .privacy-container {
    padding: 24px;
  }
  .watermark-brand {
    font-size: 72px;
  }
}