:root {
  --bg-top: #07152f;
  --bg-bottom: #020816;
  --surface: rgba(9, 24, 51, 0.82);
  --surface-strong: rgba(10, 30, 64, 0.96);
  --surface-soft: rgba(11, 38, 78, 0.76);
  --line: rgba(144, 176, 232, 0.18);
  --line-strong: rgba(144, 176, 232, 0.34);
  --text: #edf4ff;
  --muted: #a1b4d7;
  --accent: #ffb14a;
  --accent-strong: #ff851a;
  --accent-soft: rgba(255, 177, 74, 0.15);
  --accent-cool: #78d7ff;
  --shadow: 0 28px 70px rgba(1, 7, 18, 0.55);
  --radius-xl: 28px;
  --radius-lg: 22px;
  --radius-md: 16px;
  --content-width: 1180px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Trebuchet MS", "Gill Sans", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(120, 215, 255, 0.14), transparent 28%),
    radial-gradient(circle at 85% 14%, rgba(255, 177, 74, 0.14), transparent 22%),
    linear-gradient(180deg, var(--bg-top) 0%, var(--bg-bottom) 100%);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: radial-gradient(circle at center, black 32%, transparent 92%);
  opacity: 0.4;
}

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

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

section[id],
footer[id] {
  scroll-margin-top: 120px;
}

.page-wrap {
  width: min(var(--content-width), calc(100% - 32px));
  margin: 22px auto 36px;
}

.page-stack {
  display: grid;
  gap: 24px;
  margin-top: 24px;
}

.panel {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  background:
    linear-gradient(180deg, rgba(13, 33, 66, 0.96) 0%, rgba(7, 20, 44, 0.92) 100%);
  box-shadow: var(--shadow);
  backdrop-filter: blur(20px);
}

.panel::after {
  content: "";
  position: absolute;
  inset: auto -14% -38% auto;
  width: 280px;
  height: 280px;
  border-radius: 999px;
  background: radial-gradient(circle, rgba(120, 215, 255, 0.14) 0%, transparent 70%);
  pointer-events: none;
}

.panel > * {
  position: relative;
  z-index: 1;
}

.panel-soft {
  background:
    linear-gradient(180deg, rgba(12, 36, 74, 0.96) 0%, rgba(7, 20, 44, 0.94) 100%);
}

.site-header,
.hero,
.panel,
.site-footer {
  padding: 26px 28px;
}

.site-header {
  position: sticky;
  top: 16px;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 16px;
  min-width: 0;
}

.brand-logo {
  width: 182px;
  min-width: 150px;
}

.brand-copy {
  display: grid;
  gap: 4px;
}

.brand-copy strong {
  font-family: "Palatino Linotype", "Book Antiqua", serif;
  font-size: 1.15rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.brand-copy span {
  color: var(--muted);
  font-size: 0.94rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 14px 22px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-size: 0.98rem;
  font-weight: 700;
  line-height: 1;
  transition:
    transform 0.2s ease,
    box-shadow 0.2s ease,
    border-color 0.2s ease,
    background 0.2s ease;
}

.button:hover {
  transform: translateY(-1px);
}

.button-primary {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-strong) 100%);
  color: #08101e;
  box-shadow: 0 16px 34px rgba(255, 133, 26, 0.28);
}

.button-secondary {
  border-color: rgba(120, 215, 255, 0.4);
  background: rgba(8, 24, 48, 0.72);
  color: var(--accent-cool);
}

.button-secondary:hover {
  border-color: rgba(120, 215, 255, 0.66);
  background: rgba(11, 34, 68, 0.92);
}

.button-small {
  min-height: 44px;
  padding: 12px 18px;
  font-size: 0.92rem;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.34fr) minmax(280px, 0.66fr);
  gap: 26px;
  align-items: center;
}

.eyebrow,
.section-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  width: fit-content;
  padding: 9px 14px;
  border: 1px solid rgba(120, 215, 255, 0.24);
  border-radius: 999px;
  background: rgba(120, 215, 255, 0.08);
  color: var(--accent-cool);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.hero h1,
.section-head h2,
.info-card h3,
.review-card h3 {
  font-family: "Palatino Linotype", "Book Antiqua", serif;
}

.hero h1 {
  margin: 18px 0 14px;
  margin-left: 0;
  max-width: none;
  font-size: clamp(1.9rem, 3.6vw, 3.3rem);
  line-height: 0.95;
  letter-spacing: -0.03em;
}

.hero p,
.content-flow p,
.section-head p,
.info-card p,
.review-card p,
.accordion-body p,
.site-footer p {
  margin: 0;
  color: var(--muted);
  line-height: 1.75;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.search-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
}

.search-tags li {
  padding: 12px 14px;
  border: 1px solid rgba(255, 177, 74, 0.16);
  border-radius: 999px;
  background: rgba(255, 177, 74, 0.08);
  color: #ffe4be;
  font-size: 0.92rem;
}

.facts-grid,
.card-grid,
.split-grid {
  display: grid;
  gap: 16px;
}

.facts-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 24px;
}

.fact-card,
.info-card,
.review-card,
.note-card {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: rgba(7, 21, 43, 0.68);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.03);
}

.fact-card {
  padding: 18px;
  display: grid;
  gap: 8px;
}

.fact-card strong {
  color: var(--accent-cool);
  font-size: 0.82rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.fact-card span {
  font-family: "Palatino Linotype", "Book Antiqua", serif;
  font-size: 1.18rem;
}

.hero-media {
  margin: 0;
  padding: 16px;
  border: 1px solid rgba(120, 215, 255, 0.18);
  border-radius: calc(var(--radius-xl) - 4px);
  background:
    linear-gradient(180deg, rgba(8, 24, 50, 0.95) 0%, rgba(5, 16, 35, 0.98) 100%);
}

.hero-media img {
  width: 100%;
  border-radius: calc(var(--radius-lg) - 4px);
}

.hero-media figcaption {
  margin-top: 12px;
  color: var(--muted);
  font-size: 0.9rem;
}

.section-head {
  display: grid;
  gap: 12px;
  margin-bottom: 22px;
}

.section-head h2 {
  margin: 0;
  font-size: clamp(1.9rem, 3.4vw, 3rem);
  line-height: 1;
}

.content-flow {
  display: grid;
  gap: 14px;
}

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

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

.split-grid {
  grid-template-columns: minmax(0, 1.2fr) minmax(260px, 0.8fr);
}

.info-card,
.review-card,
.note-card {
  padding: 22px;
}

.info-card h3,
.review-card h3 {
  margin: 0 0 10px;
  font-size: 1.4rem;
}

.note-card strong {
  display: inline-block;
  margin-bottom: 12px;
  color: #ffe4be;
  font-size: 0.92rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.bullet-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}

.bullet-list li {
  position: relative;
  padding-left: 18px;
  color: var(--muted);
  line-height: 1.7;
}

.bullet-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-strong) 100%);
}

.steps-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 14px;
  counter-reset: steps;
}

.steps-list li {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  gap: 16px;
  align-items: center;
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: rgba(6, 19, 39, 0.7);
  color: var(--text);
  line-height: 1.6;
  counter-increment: steps;
}

.steps-list li::before {
  content: counter(steps);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-strong) 100%);
  color: #08101e;
  font-weight: 800;
}

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: rgba(6, 18, 38, 0.78);
}

.data-table {
  width: 100%;
  min-width: 560px;
  border-collapse: collapse;
}

.data-table th,
.data-table td {
  padding: 16px 18px;
  border-bottom: 1px solid var(--line);
  text-align: left;
}

.data-table th {
  color: var(--accent-cool);
  font-size: 0.82rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  background: rgba(120, 215, 255, 0.08);
}

.data-table td {
  color: var(--text);
}

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

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

.accordion {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: rgba(6, 19, 39, 0.7);
  overflow: hidden;
}

.accordion summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 18px 20px;
  cursor: pointer;
  list-style: none;
  font-weight: 700;
}

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

.accordion summary::after {
  content: "+";
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: #ffe4be;
  flex: 0 0 auto;
}

.accordion[open] summary::after {
  content: "-";
}

.accordion-body {
  padding: 0 20px 20px;
}

.toc-list {
  margin: 0;
  padding-left: 22px;
  display: grid;
  gap: 10px;
}

.toc-list li {
  break-inside: avoid;
  margin-bottom: 0;
  color: var(--muted);
}

.toc-list a {
  color: var(--text);
  text-decoration-color: rgba(120, 215, 255, 0.4);
}

.toc-list a:hover {
  color: var(--accent-cool);
  text-decoration: underline;
}

.reviews-summary {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 18px;
  padding: 12px 16px;
  border: 1px solid rgba(255, 177, 74, 0.2);
  border-radius: 999px;
  background: rgba(255, 177, 74, 0.08);
  color: #ffe4be;
}

.reviews-summary strong {
  color: var(--text);
  font-size: 1.05rem;
}

.rating-stars {
  --rating: 5;
  --stars: 5;
  position: relative;
  display: inline-block;
  font-size: 1rem;
  line-height: 1;
  letter-spacing: 0.16em;
}

.rating-stars::before,
.rating-stars::after {
  content: "★★★★★";
}

.rating-stars::before {
  color: rgba(255, 255, 255, 0.16);
}

.rating-stars::after {
  position: absolute;
  inset: 0 auto auto 0;
  width: calc(var(--rating) / var(--stars) * 100%);
  overflow: hidden;
  color: var(--accent);
  white-space: nowrap;
}

.reviews-summary .rating-stars {
  font-size: 1.05rem;
}

.review-card .rating-stars {
  margin-bottom: 12px;
}

.review-card {
  background:
    linear-gradient(180deg, rgba(8, 24, 50, 0.78) 0%, rgba(6, 18, 38, 0.84) 100%);
}

.panel-cta {
  border-color: rgba(255, 177, 74, 0.24);
  background:
    radial-gradient(circle at top right, rgba(255, 177, 74, 0.12), transparent 28%),
    linear-gradient(180deg, rgba(12, 35, 72, 0.98) 0%, rgba(7, 20, 44, 0.96) 100%);
}

.site-footer {
  margin-top: 24px;
}

@media (max-width: 980px) {
  .hero,
  .split-grid,
  .card-grid,
  .card-grid-3,
  .facts-grid {
    grid-template-columns: 1fr;
  }

  .hero h1 {
    max-width: none;
  }

}

@media (max-width: 760px) {
  .page-wrap {
    width: min(var(--content-width), calc(100% - 18px));
    margin: 12px auto 24px;
  }

  .site-header,
  .hero,
  .panel,
  .site-footer {
    padding: 20px;
  }

  .site-header {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }

  .brand {
    flex-direction: row;
    align-items: center;
    flex: 1 1 auto;
    gap: 12px;
  }

  .brand-logo {
    width: 140px;
    min-width: 0;
  }

  .button,
  .hero-actions .button,
  .note-card .button {
    width: 100%;
  }

  .site-header > .button {
    width: auto;
    min-height: 42px;
    padding: 12px 20px;
    flex: 0 0 auto;
  }

  .hero-actions {
    display: grid;
  }

  .hero h1 {
    font-size: clamp(1.7rem, 7.6vw, 2.5rem);
    line-height: 1;
  }

  .section-head h2 {
    font-size: clamp(1.7rem, 8vw, 2.3rem);
  }

  .accordion summary {
    align-items: flex-start;
    padding: 16px 16px;
  }

  .accordion-body {
    padding: 0 16px 16px;
  }

  .data-table {
    min-width: 480px;
  }
}