:root {

  --bg-primary: #ffffff;
  --bg-secondary: #f8fafe;
  --bg-tertiary: #edf2f9;
  --surface: #ffffff;
  --surface-subtle: #fbfcfe;
  --surface-elevated: #ffffff;

  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #64748b;
  --text-subtle: #94a3b8;

  --border-light: #e2e8f0;
  --border-medium: #cbd5e1;
  --border-focus: #6c5cff;

  --accent: #6c5cff;
  --accent-hover: #5a48f5;
  --accent-light: #f0edff;
  --accent-glow: rgba(108, 92, 255, 0.25);

  --accent-secondary: #0ea5e9;
  --accent-emerald: #10b981;
  --accent-emerald-light: #ecfdf5;
  --accent-amber: #f59e0b;

  --header-bg: rgba(255, 255, 255, 0.88);
  --header-border: rgba(226, 232, 240, 0.8);

  --card-shadow: 0 10px 30px -5px rgba(15, 23, 42, 0.06), 0 4px 6px -2px rgba(15, 23, 42, 0.03);
  --card-shadow-hover: 0 20px 40px -8px rgba(108, 92, 255, 0.12), 0 8px 16px -4px rgba(15, 23, 42, 0.04);
  --hero-shadow: 0 30px 80px rgba(0, 0, 0, 0.35);

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;

  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

[data-theme="dark"] {
  --bg-primary: #070d18;
  --bg-secondary: #0c1424;
  --bg-tertiary: #131f36;
  --surface: #0f1a2e;
  --surface-subtle: #14223d;
  --surface-elevated: #182847;

  --text-primary: #f8fafc;
  --text-secondary: #cbd5e1;
  --text-muted: #94a3b8;
  --text-subtle: #64748b;

  --border-light: #1e2e4a;
  --border-medium: #2a3e63;
  --border-focus: #8273ff;

  --accent: #7c6dff;
  --accent-hover: #9083ff;
  --accent-light: rgba(124, 109, 255, 0.15);
  --accent-glow: rgba(124, 109, 255, 0.35);

  --accent-emerald-light: rgba(16, 185, 129, 0.15);

  --header-bg: rgba(7, 13, 24, 0.88);
  --header-border: rgba(30, 46, 74, 0.8);

  --card-shadow: 0 14px 35px rgba(0, 0, 0, 0.35);
  --card-shadow-hover: 0 22px 50px rgba(108, 92, 255, 0.2);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 90px;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--text-primary);
  background-color: var(--bg-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background-color var(--transition-normal), color var(--transition-normal);
}

a {
  color: inherit;
  text-decoration: none;
}

h1, h2, h3, h4, p {
  margin-top: 0;
}

.container {
  width: min(1200px, calc(100% - 48px));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--header-bg);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--header-border);
  transition: background-color var(--transition-normal), border-color var(--transition-normal);
}

.nav-wrap {
  height: 74px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
  font-size: 20px;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

.brand-mark {
  width: 38px;
  height: 38px;
  border-radius: 11px;
  display: grid;
  place-items: center;
  color: #ffffff;
  background: linear-gradient(135deg, var(--accent), #9688ff);
  box-shadow: 0 8px 18px var(--accent-glow);
  font-weight: 900;
  font-size: 19px;
  user-select: none;
}

.brand-tagline {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-muted);
  border-left: 1px solid var(--border-light);
  padding-left: 10px;
  margin-left: 4px;
}

.nav {
  display: flex;
  gap: 28px;
  color: var(--text-secondary);
  font-weight: 600;
  font-size: 14px;
}

.nav a {
  transition: color var(--transition-fast);
  padding: 6px 0;
  position: relative;
}

.nav a:hover {
  color: var(--accent);
}

.nav a:hover::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
}

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

.theme-toggle-btn {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-light);
  background: var(--surface);
  color: var(--text-secondary);
  display: grid;
  place-items: center;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.theme-toggle-btn:hover {
  color: var(--accent);
  border-color: var(--accent);
  background: var(--accent-light);
}

.theme-toggle-btn svg {
  width: 20px;
  height: 20px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 0;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--accent), #7a6bff);
  color: #ffffff;
  padding: 12px 20px;
  font-family: inherit;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  box-shadow: 0 8px 20px var(--accent-glow);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast);
  text-decoration: none;
  white-space: nowrap;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 26px var(--accent-glow);
}

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

.btn-small {
  padding: 8px 14px;
  font-size: 13px;
  border-radius: var(--radius-sm);
}

.btn-ghost {
  background: var(--surface);
  color: var(--text-primary);
  border: 1px solid var(--border-light);
  box-shadow: none;
}

.btn-ghost:hover {
  background: var(--bg-tertiary);
  border-color: var(--border-medium);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

.btn-secondary {
  background: var(--accent-light);
  color: var(--accent);
  box-shadow: none;
}

.btn-secondary:hover {
  background: var(--accent);
  color: #ffffff;
}

.eyebrow, .tool-kicker {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-weight: 800;
  color: var(--accent);
  background: var(--accent-light);
  padding: 6px 12px;
  border-radius: var(--radius-full);
}

.hero .eyebrow {
  color: #b8b0ff;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.hero {
  background: radial-gradient(circle at 85% 15%, rgba(108, 92, 255, 0.3), transparent 45%),
              linear-gradient(150deg, #070e1b, #0d1a2f 65%, #102442);
  color: #ffffff;
  padding: 88px 0 94px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(255, 255, 255, 0.08) 1px, transparent 1px);
  background-size: 28px 28px;
  pointer-events: none;
  opacity: 0.4;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  align-items: center;
  gap: 64px;
  position: relative;
  z-index: 1;
}

.hero h1 {
  font-size: clamp(40px, 5.2vw, 66px);
  line-height: 1.05;
  letter-spacing: -0.04em;
  margin: 18px 0 20px;
  font-weight: 800;
}

.hero h1 span {
  background: linear-gradient(90deg, #b0a5ff, #38efce);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-copy {
  font-size: 18px;
  color: #b9c7dc;
  max-width: 640px;
  line-height: 1.6;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin: 32px 0 26px;
}

.trust-row {
  display: flex;
  flex-wrap: wrap;
  gap: 22px;
  color: #9eb1ca;
  font-size: 13px;
  font-weight: 500;
}

.trust-row span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.hero-panel {
  position: relative;
  border: 1px solid rgba(255, 255, 255, 0.15);
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(14px);
  border-radius: var(--radius-xl);
  padding: 22px;
  box-shadow: var(--hero-shadow);
}

.browser-bar {
  display: flex;
  gap: 8px;
  margin-bottom: 22px;
}

.browser-bar span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.3);
}

.browser-bar span:nth-child(1) { background: #ff5f56; }
.browser-bar span:nth-child(2) { background: #ffbd2e; }
.browser-bar span:nth-child(3) { background: #27c93f; }

.dashboard-card {
  background: #ffffff;
  color: #0f172a;
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.mini-label {
  font-size: 12px;
  color: #64748b;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.score-row {
  display: flex;
  align-items: flex-end;
  gap: 4px;
  margin: 6px 0 10px;
}

.score-row strong {
  font-size: 52px;
  line-height: 1;
  font-weight: 800;
  color: #0f172a;
}

.score-row span {
  color: #64748b;
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 6px;
}

.meter {
  height: 9px;
  border-radius: var(--radius-full);
  background: #e2e8f0;
  overflow: hidden;
}

.meter i {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, var(--accent), #20d0b2);
  border-radius: inherit;
  transition: width var(--transition-normal);
}

.mini-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 22px;
}

.mini-grid div {
  border: 1px solid #e2e8f0;
  background: #f8fafc;
  padding: 12px;
  border-radius: var(--radius-md);
  display: flex;
  flex-direction: column;
}

.mini-grid b {
  font-size: 13px;
  color: #1e293b;
}

.mini-grid span {
  font-size: 12px;
  font-weight: 600;
  color: #059669;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.floating-card {
  position: absolute;
  background: #ffffff;
  color: #0f172a;
  border-radius: var(--radius-md);
  padding: 12px 16px;
  font-size: 13px;
  font-weight: 700;
  box-shadow: 0 14px 30px rgba(0, 0, 0, 0.18);
  display: flex;
  align-items: center;
  gap: 8px;
  animation: floatCard 4s ease-in-out infinite alternate;
}

.floating-card b {
  color: var(--accent);
  background: #f0edff;
  padding: 2px 8px;
  border-radius: 6px;
}

.floating-card.one {
  left: -28px;
  bottom: 50px;
  animation-delay: 0s;
}

.floating-card.two {
  right: -24px;
  top: 100px;
  animation-delay: 2s;
}

@keyframes floatCard {
  0% { transform: translateY(0); }
  100% { transform: translateY(-8px); }
}

.stats-strip {
  border-bottom: 1px solid var(--border-light);
  background: var(--surface);
  transition: background-color var(--transition-normal), border-color var(--transition-normal);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  padding: 28px 0;
}

.stats-grid div {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  border-right: 1px solid var(--border-light);
}

.stats-grid div:last-child {
  border-right: 0;
}

.stats-grid strong {
  font-size: 30px;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1.1;
}

.stats-grid span {
  font-size: 13px;
  color: var(--text-muted);
  font-weight: 500;
  margin-top: 4px;
}

.section {
  padding: 88px 0;
}

.section-head {
  text-align: center;
  max-width: 740px;
  margin: 0 auto 40px;
}

.section-head.left {
  text-align: left;
  margin-left: 0;
}

.section-head h2, .tool-intro h2, .why-grid h2 {
  font-size: clamp(30px, 3.6vw, 44px);
  line-height: 1.1;
  letter-spacing: -0.035em;
  margin: 14px 0;
  font-weight: 800;
}

.section-head p, .tool-intro p, .why-grid p {
  color: var(--text-muted);
  font-size: 16px;
  line-height: 1.6;
}

.tool-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.tool-card {
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 26px;
  background: var(--surface);
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

.tool-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--card-shadow-hover);
  border-color: var(--accent);
}

.icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: var(--accent-light);
  color: var(--accent);
  display: grid;
  place-items: center;
  font-size: 14px;
  font-weight: 800;
  margin-bottom: 20px;
  transition: transform var(--transition-fast);
}

.tool-card:hover .icon {
  transform: scale(1.08);
}

.tool-card h3 {
  margin-bottom: 8px;
  font-size: 20px;
  font-weight: 700;
  color: var(--text-primary);
}

.tool-card p {
  color: var(--text-muted);
  font-size: 14px;
  flex-grow: 1;
  margin-bottom: 18px;
  line-height: 1.55;
}

.tool-card em {
  font-style: normal;
  color: var(--accent);
  font-size: 13px;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.tool-filter-bar {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 40px;
}

.filter-btn {
  border: 1px solid var(--border-light);
  background: var(--surface);
  color: var(--text-secondary);
  font-family: inherit;
  font-size: 13px;
  font-weight: 600;
  padding: 8px 18px;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.filter-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
}

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

.tools-area {
  background: var(--bg-secondary);
  transition: background-color var(--transition-normal);
  border-top: 1px solid var(--border-light);
}

.stacked-tools {
  display: grid;
  gap: 36px;
}

.tool-shell {
  background: var(--surface);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-xl);
  padding: 38px;
  box-shadow: var(--card-shadow);
  scroll-margin-top: 100px;
  transition: background-color var(--transition-normal), border-color var(--transition-normal), box-shadow var(--transition-normal);
}

.tool-shell.is-hidden {
  display: none;
}

.tool-intro {
  max-width: 760px;
  margin-bottom: 28px;
}

.tool-intro h2 {
  font-size: 32px;
  margin: 10px 0 6px;
  color: var(--text-primary);
}

.tool-intro p {
  color: var(--text-muted);
  font-size: 15px;
}

.tool-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
}

.form-card, .output-card, .checklist-card {
  border: 1px solid var(--border-light);
  background: var(--surface-subtle);
  border-radius: var(--radius-lg);
  padding: 24px;
  transition: background-color var(--transition-normal), border-color var(--transition-normal);
}

.form-card {
  display: grid;
  gap: 12px;
  align-content: start;
}

.form-card label {
  font-size: 13px;
  font-weight: 700;
  color: var(--text-primary);
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 4px;
}

.form-card label span {
  font-weight: 600;
  font-size: 12px;
  color: var(--text-muted);
}

.form-card .help-text {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: -6px;
  margin-bottom: 4px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

input, textarea, select {
  width: 100%;
  border: 1px solid var(--border-medium);
  background: var(--surface);
  border-radius: var(--radius-sm);
  padding: 11px 14px;
  font-family: inherit;
  font-size: 14px;
  color: var(--text-primary);
  outline: 0;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast), background-color var(--transition-normal);
}

input:focus, textarea:focus, select:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

input::placeholder, textarea::placeholder {
  color: var(--text-subtle);
}

textarea {
  resize: vertical;
}

.action-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 10px;
}

.presets-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 4px 0 8px;
}

.preset-chip {
  border: 1px solid var(--border-light);
  background: var(--surface);
  color: var(--text-secondary);
  font-size: 12px;
  font-weight: 600;
  padding: 5px 11px;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.preset-chip:hover {
  background: var(--accent-light);
  border-color: var(--accent);
  color: var(--accent);
}

.output-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}

.output-head strong {
  font-size: 14px;
  color: var(--text-primary);
  font-weight: 700;
}

.copy-btn {
  border: 1px solid var(--border-light);
  background: var(--surface);
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  padding: 6px 12px;
  font-family: inherit;
  font-size: 12px;
  font-weight: 700;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all var(--transition-fast);
}

.copy-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-light);
}

.copy-btn.copied {
  background: var(--accent-emerald-light);
  color: var(--accent-emerald);
  border-color: var(--accent-emerald);
}

.output-card pre {
  white-space: pre-wrap;
  word-break: break-all;
  margin: 0;
  background: #0b1320;
  color: #e2e8f0;
  padding: 18px;
  border-radius: var(--radius-md);
  min-height: 240px;
  max-height: 480px;
  overflow-y: auto;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.65;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.serp-wrap {
  display: flex;
  flex-direction: column;
  justify-content: center;
  background: var(--surface);
  border: 1px solid var(--border-light);
}

.serp-controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border-light);
}

.mode-toggle {
  display: inline-flex;
  background: var(--bg-tertiary);
  border-radius: var(--radius-sm);
  padding: 3px;
  gap: 4px;
}

.mode-btn {
  border: 0;
  background: transparent;
  color: var(--text-muted);
  padding: 4px 10px;
  font-size: 12px;
  font-weight: 700;
  border-radius: 6px;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.mode-btn.active {
  background: var(--surface);
  color: var(--text-primary);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.08);
}

.pixel-badge {
  font-size: 11px;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: var(--radius-full);
  background: var(--accent-emerald-light);
  color: var(--accent-emerald);
}

.pixel-badge.warning {
  background: #fef3c7;
  color: #b45309;
}

.google-result-box {
  max-width: 620px;
  padding: 16px 20px;
  border-radius: var(--radius-md);
  background: #ffffff;
  border: 1px solid #e2e8f0;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.04);
}

.google-result-box.mobile {
  max-width: 380px;
  margin: 0 auto;
  border-radius: 18px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
}

.g-source-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 6px;
}

.g-favicon {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: #f1f3f4;
  display: grid;
  place-items: center;
  font-size: 11px;
  font-weight: 800;
  color: #5f6368;
}

.g-source-meta {
  display: flex;
  flex-direction: column;
}

.g-sitename {
  font-size: 14px;
  font-weight: 600;
  color: #202124;
  line-height: 1.2;
}

.g-url {
  font-size: 12px;
  color: #4d5156;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 480px;
}

.g-title {
  font-size: 20px;
  color: #1a0dab;
  margin-bottom: 5px;
  line-height: 1.3;
  cursor: pointer;
  word-break: break-word;
}

.g-title:hover {
  text-decoration: underline;
}

.g-desc {
  font-size: 14px;
  color: #4d5156;
  line-height: 1.5;
  word-break: break-word;
}

.checklist-card {
  border: 1px solid var(--border-light);
  background: var(--surface);
}

.checklist-meta-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.progress-info {
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.progress-info strong {
  font-size: 18px;
  color: var(--text-primary);
}

.progress-info span {
  font-size: 14px;
  color: var(--text-muted);
}

.progress-percent-badge {
  font-size: 14px;
  font-weight: 800;
  color: var(--accent);
  background: var(--accent-light);
  padding: 4px 12px;
  border-radius: var(--radius-full);
}

.meter.big {
  height: 12px;
  margin: 12px 0 24px;
}

.checklist-category-group {
  margin-bottom: 22px;
}

.checklist-category-title {
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.checklist-category-title span {
  font-size: 11px;
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  padding: 2px 7px;
  border-radius: var(--radius-full);
}

.checklist {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.check-item {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  border: 1px solid var(--border-light);
  background: var(--surface);
  border-radius: var(--radius-md);
  padding: 12px 14px;
  transition: all var(--transition-fast);
  cursor: pointer;
  user-select: none;
}

.check-item:hover {
  border-color: var(--border-medium);
  background: var(--surface-subtle);
}

.check-item.completed {
  background: var(--accent-emerald-light);
  border-color: rgba(16, 185, 129, 0.3);
}

.check-item input[type="checkbox"] {
  width: 18px;
  height: 18px;
  margin-top: 2px;
  cursor: pointer;
  accent-color: var(--accent);
  flex-shrink: 0;
}

.check-item label {
  font-size: 13.5px;
  font-weight: 600;
  color: var(--text-primary);
  cursor: pointer;
  line-height: 1.4;
  transition: color var(--transition-fast);
}

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

.add-task-row {
  display: flex;
  gap: 10px;
  margin-top: 20px;
  padding-top: 18px;
  border-top: 1px solid var(--border-light);
}

.checklist-actions-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 24px;
  padding-top: 18px;
  border-top: 1px solid var(--border-light);
  flex-wrap: wrap;
  gap: 10px;
}

.soft {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-light);
}

.why-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.benefit-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

.benefit-grid div {
  background: var(--surface);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 22px;
  display: flex;
  flex-direction: column;
  box-shadow: var(--card-shadow);
  transition: transform var(--transition-fast), border-color var(--transition-fast);
}

.benefit-grid div:hover {
  transform: translateY(-3px);
  border-color: var(--accent);
}

.benefit-grid b {
  margin-bottom: 8px;
  font-size: 16px;
  color: var(--text-primary);
}

.benefit-grid span {
  font-size: 13.5px;
  color: var(--text-muted);
  line-height: 1.5;
}

.faq-wrap {
  max-width: 840px;
  margin-inline: auto;
}

.faq-wrap details {
  border-top: 1px solid var(--border-light);
  padding: 20px 0;
  transition: border-color var(--transition-normal);
}

.faq-wrap details:last-child {
  border-bottom: 1px solid var(--border-light);
}

.faq-wrap summary {
  cursor: pointer;
  font-weight: 700;
  font-size: 17px;
  color: var(--text-primary);
  display: flex;
  justify-content: space-between;
  align-items: center;
  list-style: none;
}

.faq-wrap summary::-webkit-details-marker {
  display: none;
}

.faq-wrap summary::after {
  content: '+';
  font-size: 20px;
  color: var(--accent);
  transition: transform var(--transition-fast);
}

.faq-wrap details[open] summary::after {
  content: '−';
}

.faq-wrap details p {
  color: var(--text-muted);
  padding-top: 12px;
  font-size: 15px;
  line-height: 1.6;
}

.footer {
  background: #070d18;
  color: #cbd5e1;
  padding: 60px 0 28px;
  border-top: 1px solid #1e2e4a;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
}

.footer-grid > div {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-brand {
  color: #ffffff;
}

.footer-grid strong {
  color: #ffffff;
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 4px;
}

.footer-grid a:not(.brand) {
  font-size: 14px;
  color: #94a3b8;
  transition: color var(--transition-fast);
}

.footer-grid a:not(.brand):hover {
  color: #ffffff;
}

.footer-grid p {
  font-size: 14px;
  max-width: 400px;
  color: #94a3b8;
  line-height: 1.6;
}

.copyright {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  margin-top: 40px;
  padding-top: 24px;
  font-size: 13px;
  color: #64748b;
  text-align: center;
}

.toast {
  position: fixed;
  left: 50%;
  bottom: 28px;
  transform: translate(-50%, 20px);
  background: #0f172a;
  color: #ffffff;
  padding: 11px 18px;
  border-radius: var(--radius-md);
  font-size: 13.5px;
  font-weight: 600;
  opacity: 0;
  pointer-events: none;
  transition: all var(--transition-fast);
  z-index: 100;
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.25);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.toast.show {
  opacity: 1;
  transform: translate(-50%, 0);
}

@media (max-width: 960px) {
  .nav {
    display: none;
  }

  .hero-grid, .tool-layout, .why-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    padding: 70px 0 74px;
  }

  .hero-panel {
    margin-top: 16px;
  }

  .tool-grid {
    grid-template-columns: 1fr 1fr;
  }

  .stats-grid {
    grid-template-columns: 1fr 1fr;
    gap: 20px;
  }

  .stats-grid div {
    border-right: 0;
  }

  .floating-card.one {
    left: 10px;
  }

  .floating-card.two {
    right: 10px;
  }

  .checklist {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 640px) {
  .container {
    width: min(100% - 32px, 1200px);
  }

  .brand-tagline {
    display: none;
  }

  .nav-wrap {
    height: 66px;
  }

  .hero {
    padding: 50px 0 60px;
  }

  .hero h1 {
    font-size: 38px;
  }

  .hero-copy {
    font-size: 16px;
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .floating-card {
    display: none;
  }

  .stats-grid {
    padding: 22px 0;
  }

  .tool-grid {
    grid-template-columns: 1fr;
  }

  .section {
    padding: 64px 0;
  }

  .tool-shell {
    padding: 22px;
    border-radius: var(--radius-lg);
  }

  .tool-intro h2 {
    font-size: 26px;
  }

  .form-card, .output-card, .checklist-card {
    padding: 18px;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .benefit-grid {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
  }

  .checklist-actions-row {
    flex-direction: column;
    align-items: stretch;
  }
}