:root {
  --bg: #07111b;
  --bg-soft: #0e1925;
  --panel: rgba(11, 22, 34, 0.92);
  --panel-strong: rgba(15, 28, 42, 0.98);
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(246, 183, 60, 0.28);
  --text: #edf3fb;
  --muted: #9cb0c3;
  --accent: #f6b73c;
  --accent-2: #76f0c7;
  --accent-3: #ff866b;
  --shadow: 0 24px 60px rgba(0, 0, 0, 0.25);
  --radius-xl: 28px;
  --radius-lg: 22px;
  --radius-md: 18px;
  --radius-sm: 14px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  font-family: 'IBM Plex Sans', sans-serif;
  background:
    radial-gradient(circle at top left, rgba(118, 240, 199, 0.12), transparent 24%),
    radial-gradient(circle at top right, rgba(246, 183, 60, 0.13), transparent 28%),
    linear-gradient(180deg, #08111b 0%, #07101a 100%);
}

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

img {
  max-width: 100%;
  display: block;
}

.marketing-body {
  overflow-x: hidden;
}

.site-shell {
  width: min(1200px, calc(100% - 40px));
  margin: 0 auto;
}

.site-nav {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(5, 11, 18, 0.82);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}

.site-nav-inner {
  width: min(1200px, calc(100% - 40px));
  margin: 0 auto;
  padding: 16px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.brand-mark img {
  width: 36px;
  height: 36px;
  border-radius: 12px;
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.08);
}

.nav-links,
.nav-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.nav-links {
  flex-wrap: wrap;
  justify-content: center;
}

.nav-link {
  padding: 10px 14px;
  border-radius: 999px;
  color: var(--muted);
  font-size: 0.92rem;
  transition: 160ms ease;
}

.nav-link:hover,
.nav-link:focus-visible {
  color: var(--text);
  background: rgba(255, 255, 255, 0.05);
  outline: none;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 12px 18px;
  cursor: pointer;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text);
  background: rgba(255, 255, 255, 0.03);
  transition: transform 160ms ease, border-color 160ms ease, box-shadow 160ms ease;
}

.btn:hover,
.btn:focus-visible {
  transform: translateY(-1px);
  border-color: rgba(255, 255, 255, 0.18);
  outline: none;
}

.btn-primary {
  color: #161616;
  border-color: transparent;
  background: linear-gradient(135deg, var(--accent) 0%, #ffd37a 100%);
  box-shadow: 0 14px 30px rgba(246, 183, 60, 0.22);
}

.btn-secondary {
  border-color: rgba(118, 240, 199, 0.2);
  color: var(--accent-2);
  background: rgba(118, 240, 199, 0.08);
}

.btn-ghost {
  color: var(--muted);
}

.hero-grid,
.page-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(320px, 0.9fr);
  gap: 26px;
  padding: 42px 0 26px;
  align-items: center;
}

.hero-card,
.panel-card,
.quiz-layout,
.seo-card,
.article-card {
  border-radius: var(--radius-xl);
  border: 1px solid var(--border);
  background: var(--panel);
  box-shadow: var(--shadow);
}

.hero-card {
  padding: 34px;
  position: relative;
  overflow: hidden;
}

.hero-card::after {
  content: '';
  position: absolute;
  right: -50px;
  bottom: -60px;
  width: 220px;
  height: 220px;
  background: radial-gradient(circle, rgba(118, 240, 199, 0.16), transparent 70%);
  pointer-events: none;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 18px;
  font-size: 0.76rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
}

.eyebrow::before {
  content: '';
  width: 36px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent));
}

h1,
h2,
h3,
h4 {
  font-family: 'Space Grotesk', sans-serif;
  margin: 0;
}

.hero-title {
  font-size: clamp(2.6rem, 5vw, 5rem);
  line-height: 0.96;
  letter-spacing: -0.05em;
  max-width: 11ch;
  margin-bottom: 18px;
}

.hero-title span {
  color: var(--accent);
}

.hero-copy,
.page-copy,
.section-copy,
.article-body p,
.faq-answer,
.utility-copy {
  color: var(--muted);
  line-height: 1.74;
}

.hero-actions,
.inline-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin: 26px 0 18px;
}

.proof-grid,
.tool-grid,
.feature-grid,
.stat-grid,
.article-grid,
.related-grid,
.faq-grid {
  display: grid;
  gap: 16px;
}

.proof-grid,
.tool-grid,
.feature-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.stat-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.proof-card,
.tool-card,
.feature-card,
.stat-card,
.related-card,
.faq-card,
.article-panel {
  padding: 22px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.03);
}

.visual-card {
  padding: 26px;
  display: grid;
  gap: 14px;
}

.visual-chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.chip {
  padding: 8px 12px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.05);
  color: var(--text);
  font-size: 0.8rem;
}

.chip.active {
  border-color: rgba(246, 183, 60, 0.24);
  background: rgba(246, 183, 60, 0.12);
  color: #fff4d7;
}

.workflow-stack {
  display: grid;
  gap: 12px;
}

.workflow-card {
  padding: 18px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  background: rgba(6, 12, 20, 0.66);
}

.workflow-kicker,
.section-kicker,
.mini-label {
  font-size: 0.76rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
}

.section-block {
  padding: 20px 0 58px;
}

.section-head {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  flex-wrap: wrap;
  align-items: end;
  margin-bottom: 22px;
}

.section-title {
  font-size: clamp(1.8rem, 3vw, 3rem);
  line-height: 1.04;
  letter-spacing: -0.04em;
  max-width: 12ch;
}

.page-hero-card,
.quiz-layout {
  padding: 30px;
}

.quiz-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(320px, 1.05fr);
  gap: 24px;
  align-items: start;
}

.benefit-list,
.utility-list,
.article-list {
  display: grid;
  gap: 12px;
  padding: 0;
  margin: 0;
  list-style: none;
}

.benefit-list li,
.utility-list li,
.article-list li {
  padding: 14px 16px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.quiz-root {
  min-height: 520px;
}

.quiz-shell {
  display: grid;
  gap: 14px;
}

.quiz-log {
  display: grid;
  gap: 10px;
}

.bubble {
  max-width: 90%;
  padding: 14px 16px;
  border-radius: 18px;
  line-height: 1.65;
  font-size: 0.96rem;
}

.bubble-bot {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.07);
}

.bubble-user {
  margin-left: auto;
  background: rgba(118, 240, 199, 0.1);
  border: 1px solid rgba(118, 240, 199, 0.18);
}

.quiz-card {
  padding: 22px;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: var(--panel-strong);
}

.quiz-progress {
  height: 10px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.07);
  overflow: hidden;
  margin-bottom: 18px;
}

.quiz-progress-fill {
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-2) 100%);
}

.question-prompt {
  font-size: 1.18rem;
  line-height: 1.35;
  margin-bottom: 18px;
}

.option-grid {
  display: grid;
  gap: 10px;
}

.option-button {
  width: 100%;
  text-align: left;
  padding: 14px 16px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  cursor: pointer;
  transition: 160ms ease;
}

.option-button:hover,
.option-button:focus-visible {
  border-color: rgba(246, 183, 60, 0.22);
  background: rgba(246, 183, 60, 0.08);
  outline: none;
}

.input-stack {
  display: grid;
  gap: 12px;
}

.input,
.textarea {
  width: 100%;
  padding: 14px 16px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.03);
  color: var(--text);
  font: inherit;
}

.textarea {
  min-height: 130px;
  resize: vertical;
}

.input::placeholder,
.textarea::placeholder {
  color: #8093a7;
}

.gate-grid {
  display: grid;
  gap: 12px;
}

.result-grid {
  display: grid;
  gap: 14px;
}

.result-highlight {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.score-card {
  padding: 18px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.03);
}

.score-number {
  font-size: 2.4rem;
  font-family: 'Space Grotesk', sans-serif;
  color: var(--accent);
}

.cta-band {
  padding: 24px;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, rgba(246, 183, 60, 0.14), rgba(118, 240, 199, 0.1));
  border: 1px solid rgba(246, 183, 60, 0.18);
}

.footer {
  padding: 28px 0 46px;
  color: var(--muted);
}

.footer-row {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  align-items: center;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 22px;
}

.seo-hero,
.article-layout {
  padding: 38px 0 24px;
}

.article-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(260px, 0.75fr);
  gap: 24px;
}

.article-card {
  padding: 30px;
}

.article-card h2 {
  margin-bottom: 12px;
  font-size: 1.6rem;
}

.article-card h3 {
  margin-bottom: 10px;
  font-size: 1.2rem;
}

.article-card p + p {
  margin-top: 12px;
}

.faq-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.related-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.auth-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(3, 8, 14, 0.7);
  backdrop-filter: blur(10px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 180ms ease;
  z-index: 60;
}

.auth-backdrop.open {
  opacity: 1;
  pointer-events: auto;
}

.auth-panel {
  position: fixed;
  top: 0;
  right: 0;
  width: min(460px, 100%);
  height: 100vh;
  padding: 28px;
  background: #0d1723;
  border-left: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: -24px 0 60px rgba(0, 0, 0, 0.36);
  transform: translateX(100%);
  transition: transform 220ms ease;
  z-index: 70;
  display: grid;
  grid-template-rows: auto auto 1fr;
  gap: 18px;
}

.auth-panel.open {
  transform: translateX(0);
}

.auth-tabs {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.auth-tab {
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 999px;
  padding: 10px 12px;
  background: rgba(255, 255, 255, 0.03);
  color: var(--muted);
  cursor: pointer;
}

.auth-tab.active {
  color: #161616;
  background: linear-gradient(135deg, var(--accent) 0%, #ffd37a 100%);
  border-color: transparent;
}

.auth-form {
  display: grid;
  gap: 14px;
}

.auth-form[hidden] {
  display: none;
}

.auth-error {
  min-height: 22px;
  color: #ffb1a0;
  font-size: 0.92rem;
}

.auth-close {
  justify-self: end;
  background: transparent;
  border: 0;
  color: var(--muted);
  font-size: 1.7rem;
  cursor: pointer;
}

.hidden {
  display: none !important;
}

@media (max-width: 980px) {
  .site-nav-inner,
  .site-shell {
    width: min(100% - 28px, 1200px);
  }

  .nav-links {
    display: none;
  }

  .hero-grid,
  .page-hero-grid,
  .quiz-layout,
  .article-layout {
    grid-template-columns: 1fr;
  }

  .proof-grid,
  .tool-grid,
  .feature-grid,
  .stat-grid,
  .faq-grid,
  .related-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 720px) {
  .site-nav-inner {
    flex-wrap: wrap;
    justify-content: center;
  }

  .nav-actions {
    width: 100%;
    justify-content: center;
  }

  .hero-card,
  .visual-card,
  .quiz-layout,
  .page-hero-card,
  .article-card {
    padding: 24px;
  }

  .hero-title {
    max-width: none;
    font-size: clamp(2.2rem, 11vw, 3.6rem);
  }

  .proof-grid,
  .tool-grid,
  .feature-grid,
  .stat-grid,
  .faq-grid,
  .related-grid,
  .result-highlight {
    grid-template-columns: 1fr;
  }

  .btn {
    width: 100%;
  }

  .hero-actions,
  .inline-actions {
    flex-direction: column;
  }

  .auth-panel {
    padding: 24px 18px;
  }
}

.option-checkbox-grid {
  display: grid;
  gap: 10px;
}

.checkbox-option {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.04);
}

.checkbox-option input {
  accent-color: var(--accent);
}

.upload-panel {
  display: grid;
  gap: 10px;
}

.upload-meta,
.details-grid {
  display: grid;
  gap: 10px;
}

.detail-row {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 14px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.detail-row strong {
  color: var(--text);
}

.detail-row span {
  color: var(--muted);
  text-align: right;
}

@media (max-width: 720px) {
  .detail-row {
    flex-direction: column;
  }
}