:root {
  color-scheme: dark;
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --bg: #070b12;
  --panel: #121926;
  --panel-strong: #192335;
  --ink: #f8fafc;
  --muted: #aeb8c7;
  --line: rgba(255, 255, 255, 0.13);
  --blue: #3478f6;
  --blue-soft: #8fb5ff;
  --shadow: 0 28px 90px rgba(0, 0, 0, 0.34);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
}

a {
  color: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 24px;
  min-height: 76px;
  padding: 12px clamp(18px, 5vw, 64px);
  border-bottom: 1px solid var(--line);
  background: rgba(7, 11, 18, 0.9);
  backdrop-filter: blur(18px);
}

.brand,
.site-header nav,
.hero-actions,
.review-tabs,
.review-meta,
.site-footer,
.site-footer nav {
  display: flex;
  align-items: center;
}

.brand {
  gap: 12px;
  font-size: 20px;
  font-weight: 950;
  text-decoration: none;
}

.brand img {
  width: 42px;
  height: 42px;
  border-radius: 9px;
  background: #05070d;
}

.site-header nav {
  justify-content: center;
  gap: 24px;
}

.site-header nav a,
.site-footer a {
  color: var(--muted);
  font-size: 15px;
  font-weight: 850;
  text-decoration: none;
}

.site-header nav a:hover,
.site-footer a:hover {
  color: var(--ink);
}

.header-action,
.primary-action,
.secondary-action,
.tab-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  border-radius: 8px;
  font-weight: 950;
  text-decoration: none;
  white-space: nowrap;
}

.header-action,
.primary-action,
.tab-button.is-active {
  border: 0;
  background: var(--blue);
  color: #fff;
}

.header-action,
.primary-action {
  padding: 0 18px;
}

.secondary-action,
.tab-button {
  padding: 0 18px;
  border: 1px solid rgba(255, 255, 255, 0.22);
  background: rgba(255, 255, 255, 0.04);
  color: #fff;
}

.tab-button {
  cursor: pointer;
}

.hero {
  position: relative;
  min-height: min(720px, calc(100svh - 76px));
  display: grid;
  align-items: end;
  overflow: hidden;
  padding: clamp(92px, 14vw, 160px) clamp(18px, 5vw, 72px) clamp(54px, 8vw, 88px);
  isolation: isolate;
}

.hero-media {
  position: absolute;
  inset: 0;
  z-index: -2;
  background: #0d1420;
}

.hero-media video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.42;
}

.media-scrim {
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    linear-gradient(90deg, rgba(7, 11, 18, 0.98) 0%, rgba(7, 11, 18, 0.8) 50%, rgba(7, 11, 18, 0.38) 100%),
    linear-gradient(0deg, rgba(7, 11, 18, 0.9) 0%, rgba(7, 11, 18, 0.12) 54%);
}

.hero-copy {
  width: min(780px, 100%);
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--blue-soft);
  font-size: 13px;
  font-weight: 950;
  letter-spacing: 0;
  text-transform: uppercase;
}

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

h1 {
  margin-bottom: 18px;
  font-size: clamp(54px, 9vw, 118px);
  line-height: 0.92;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 14px;
  font-size: clamp(32px, 5vw, 62px);
  line-height: 1;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 10px;
  font-size: 24px;
}

p {
  color: var(--muted);
  font-size: 18px;
  line-height: 1.55;
}

.hero-copy p {
  max-width: 680px;
  color: #dbe4f0;
  font-size: clamp(20px, 2.4vw, 28px);
  line-height: 1.35;
}

.hero-actions {
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.proof-strip,
.reviews-section,
.comments-section,
.source-section,
.evidence-band,
.submit-section {
  padding: clamp(56px, 8vw, 96px) clamp(18px, 5vw, 72px);
}

.proof-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  padding-block: 0;
  border-block: 1px solid var(--line);
  background: var(--line);
}

.proof-strip div {
  min-height: 132px;
  padding: 26px;
  background: #0b111b;
}

.proof-strip span {
  display: block;
  margin-bottom: 8px;
  color: #fff;
  font-size: 38px;
  font-weight: 950;
}

.proof-strip strong {
  color: var(--muted);
  font-size: 14px;
  text-transform: uppercase;
}

.section-head {
  max-width: 820px;
  margin-bottom: 28px;
}

.review-tabs {
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 20px;
}

.reviews-grid,
.comments-grid,
.source-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.review-card,
.comment-card,
.source-grid article,
.empty-card,
.guideline-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: var(--shadow);
}

.review-card,
.comment-card,
.source-grid article,
.empty-card,
.guideline-card {
  padding: 22px;
}

.review-card h3 {
  margin-bottom: 12px;
  color: #fff;
  font-size: 22px;
  line-height: 1.2;
}

.review-card blockquote,
.comment-card blockquote {
  margin: 0 0 18px;
  color: #eef4ff;
  font-size: 17px;
  font-weight: 750;
  line-height: 1.5;
}

.review-meta {
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 14px;
}

.review-meta span,
.source-grid span,
.comment-card span {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0 10px;
  border-radius: 999px;
  background: rgba(52, 120, 246, 0.16);
  color: #cfe0ff;
  font-size: 12px;
  font-weight: 950;
  text-transform: uppercase;
}

.review-card footer,
.comment-card footer {
  color: var(--muted);
  font-size: 14px;
  font-weight: 850;
}

.empty-card {
  grid-column: 1 / -1;
  min-height: 190px;
  display: grid;
  align-content: center;
  justify-items: start;
}

.comments-section,
.review-cta-section {
  border-block: 1px solid var(--line);
  background: #0b111b;
}

.review-cta-section {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 24px;
  align-items: end;
}

.review-cta-section .section-head {
  margin-bottom: 0;
}

.review-cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: flex-end;
}

.source-grid article strong {
  display: block;
  margin: 18px 0 10px;
  font-size: 24px;
}

.source-grid article p {
  margin-bottom: 0;
  font-size: 16px;
}

.evidence-band {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(320px, 0.7fr);
  gap: clamp(28px, 6vw, 74px);
  align-items: center;
  border-block: 1px solid var(--line);
  background: #0b111b;
}

.evidence-band figure {
  margin: 0;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}

.evidence-band img {
  display: block;
  width: 100%;
  border-radius: 6px;
}

.submit-section {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(260px, 0.56fr) minmax(220px, 0.34fr);
  gap: 24px;
  align-items: start;
}

.guideline-card ul {
  margin: 0;
  padding-left: 20px;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.65;
}

.submit-actions {
  display: grid;
  gap: 12px;
}

.site-footer {
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 18px;
  padding: 24px clamp(18px, 5vw, 72px);
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-weight: 850;
}

.site-footer nav {
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 18px;
}

@media (max-width: 960px) {
  .site-header {
    grid-template-columns: 1fr auto;
  }

  .site-header nav {
    display: none;
  }

  .proof-strip,
  .reviews-grid,
  .comments-grid,
  .source-grid,
  .evidence-band,
  .submit-section,
  .review-cta-section {
    grid-template-columns: 1fr;
  }

  .review-cta-actions {
    justify-content: flex-start;
  }
}

@media (max-width: 620px) {
  .site-header {
    min-height: 68px;
    gap: 12px;
  }

  .brand span {
    display: none;
  }

  .header-action {
    min-height: 40px;
    padding-inline: 12px;
    font-size: 14px;
  }

  .hero {
    min-height: calc(100svh - 68px);
    padding-top: 78px;
  }

  .hero-actions a,
  .submit-actions a,
  .review-cta-actions a {
    width: 100%;
  }

  .proof-strip div {
    min-height: 104px;
  }

  .site-footer {
    align-items: flex-start;
    flex-direction: column;
  }

  .site-footer nav {
    justify-content: flex-start;
  }
}