:root {
  --bg: #06101c;
  --bg-deep: #030912;
  --surface: #0a1726;
  --surface-raised: #102033;
  --text: #f4f8fc;
  --muted: #9cadbf;
  --muted-bright: #c8d3df;
  --line: rgba(184, 208, 230, 0.14);
  --line-strong: rgba(184, 208, 230, 0.24);
  --accent: #62a9ff;
  --accent-soft: rgba(98, 169, 255, 0.16);
  --accent-bright: #9ecaff;
  --container: 1180px;
  --radius: 22px;
  --radius-lg: 32px;
  --shadow: 0 30px 90px rgba(0, 0, 0, 0.38);
  --font: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

body.theme-rescue {
  --accent: #4ee4c1;
  --accent-soft: rgba(78, 228, 193, 0.14);
  --accent-bright: #a3f4e1;
}

body.theme-budget {
  --accent: #84abff;
  --accent-soft: rgba(132, 171, 255, 0.15);
  --accent-bright: #bfd1ff;
}

body.theme-heating {
  --accent: #ff9e45;
  --accent-soft: rgba(255, 158, 69, 0.14);
  --accent-bright: #ffd0a5;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 100px;
}

body {
  margin: 0;
  min-width: 280px;
  overflow-x: hidden;
  color: var(--text);
  background:
    radial-gradient(circle at 78% 8%, var(--accent-soft), transparent 27rem),
    linear-gradient(180deg, var(--bg) 0%, var(--bg-deep) 100%);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

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

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

h1,
h2,
h3 {
  line-height: 1.08;
  letter-spacing: -0.04em;
}

::selection {
  color: #041018;
  background: var(--accent);
}

:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 4px;
}

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

.skip-link {
  position: fixed;
  z-index: 1000;
  top: 12px;
  left: 12px;
  padding: 10px 16px;
  transform: translateY(-160%);
  border-radius: 10px;
  color: #041018;
  background: var(--accent);
  font-weight: 800;
}

.skip-link:focus {
  transform: none;
}

.site-header {
  position: sticky;
  z-index: 100;
  top: 0;
  border-bottom: 1px solid var(--line);
  background: rgba(6, 16, 28, 0.84);
  backdrop-filter: blur(18px) saturate(130%);
}

.nav-shell {
  display: flex;
  min-height: 78px;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.brand {
  flex: 0 0 auto;
}

.brand-logo {
  width: 148px;
  height: auto;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.header-link {
  padding: 10px 15px;
  border-radius: 999px;
  color: var(--muted-bright);
  font-size: 0.9rem;
  font-weight: 700;
  transition: color 160ms ease, background 160ms ease;
}

.header-link:hover {
  color: var(--text);
  background: rgba(255, 255, 255, 0.05);
}

.header-link-primary {
  border: 1px solid var(--line-strong);
  color: var(--text);
}

.breadcrumb {
  padding-top: 34px;
}

.breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 0;
  padding: 0;
  color: var(--muted);
  font-size: 0.84rem;
  list-style: none;
}

.breadcrumb li:not(:last-child)::after {
  content: "/";
  margin-left: 8px;
  color: rgba(255, 255, 255, 0.28);
}

.breadcrumb a:hover {
  color: var(--text);
}

.case-hero {
  position: relative;
  padding: 72px 0 74px;
}

.case-hero::before {
  position: absolute;
  z-index: -1;
  top: 20%;
  left: -12rem;
  width: 28rem;
  height: 28rem;
  border-radius: 50%;
  background: var(--accent-soft);
  filter: blur(72px);
  content: "";
  pointer-events: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.18fr);
  align-items: center;
  gap: clamp(38px, 6vw, 78px);
}

.eyebrow {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 22px;
  color: var(--accent-bright);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.eyebrow::before {
  width: 34px;
  height: 1px;
  background: var(--accent);
  content: "";
}

.case-hero h1 {
  max-width: 720px;
  margin-bottom: 24px;
  font-size: clamp(3.1rem, 6.6vw, 6.5rem);
}

.case-hero h1 em {
  color: var(--accent);
  font-style: normal;
}

.hero-intro {
  max-width: 620px;
  margin-bottom: 30px;
  color: var(--muted-bright);
  font-size: clamp(1.05rem, 1.6vw, 1.24rem);
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 32px;
}

.hero-tags span {
  padding: 7px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted-bright);
  background: rgba(255, 255, 255, 0.025);
  font-size: 0.78rem;
  font-weight: 700;
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.button {
  display: inline-flex;
  min-height: 50px;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 0 20px;
  border: 1px solid var(--line-strong);
  border-radius: 13px;
  color: var(--text);
  font-size: 0.92rem;
  font-weight: 800;
  transition: transform 160ms ease, border-color 160ms ease, background 160ms ease;
}

.button:hover {
  transform: translateY(-2px);
  border-color: rgba(255, 255, 255, 0.38);
}

.button-primary {
  border-color: transparent;
  color: #041018;
  background: var(--accent);
  box-shadow: 0 14px 32px var(--accent-soft);
}

.button-primary:hover {
  border-color: transparent;
  background: var(--accent-bright);
}

.case-media {
  position: relative;
  isolation: isolate;
  padding: 10px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-lg);
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.015));
  box-shadow: var(--shadow);
}

.case-media::after {
  position: absolute;
  z-index: -1;
  right: -7%;
  bottom: -12%;
  width: 58%;
  height: 48%;
  border-radius: 50%;
  background: var(--accent-soft);
  filter: blur(38px);
  content: "";
}

.browser-bar {
  display: flex;
  height: 38px;
  align-items: center;
  gap: 6px;
  padding: 0 13px;
  border-radius: 21px 21px 0 0;
  background: #0b1523;
}

.browser-bar i {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.3);
}

.browser-bar span {
  margin-left: auto;
  color: var(--muted);
  font-size: 0.7rem;
  font-style: normal;
}

.case-media img {
  width: 100%;
  height: auto;
  border-radius: 0 0 22px 22px;
  background: #0b1421;
}

.case-media figcaption {
  padding: 10px 8px 3px;
  color: var(--muted);
  font-size: 0.76rem;
}

.fact-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin-bottom: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(10, 23, 38, 0.7);
  box-shadow: 0 18px 54px rgba(0, 0, 0, 0.2);
}

.fact {
  min-width: 0;
  padding: 25px 28px;
}

.fact + .fact {
  border-left: 1px solid var(--line);
}

.fact small {
  display: block;
  margin-bottom: 5px;
  color: var(--accent-bright);
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.fact strong {
  display: block;
  color: var(--text);
  font-size: 1rem;
}

.section {
  padding: clamp(78px, 10vw, 126px) 0;
}

.section-compact {
  padding-top: 72px;
  padding-bottom: 30px;
}

.section-tint {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(16, 32, 51, 0.48), rgba(6, 16, 28, 0.14));
}

.section-head {
  max-width: 730px;
  margin-bottom: 46px;
}

.section-kicker {
  margin-bottom: 13px;
  color: var(--accent-bright);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.section-head h2,
.split-copy h2,
.evidence-copy h2 {
  margin-bottom: 18px;
  font-size: clamp(2.1rem, 4.7vw, 4.2rem);
}

.section-head p,
.split-copy > p,
.evidence-copy > p {
  color: var(--muted-bright);
  font-size: 1.05rem;
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  align-items: start;
  gap: clamp(48px, 8vw, 110px);
}

.context-card {
  padding: clamp(26px, 4vw, 40px);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(145deg, var(--accent-soft), transparent 54%),
    var(--surface);
}

.context-card blockquote {
  margin: 0 0 28px;
  color: var(--text);
  font-size: clamp(1.35rem, 2.4vw, 2rem);
  font-weight: 760;
  line-height: 1.28;
  letter-spacing: -0.025em;
}

.context-card p {
  margin-bottom: 0;
  color: var(--muted);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.feature-card {
  min-height: 220px;
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(10, 23, 38, 0.72);
  transition: border-color 180ms ease, transform 180ms ease;
}

.feature-card:hover {
  transform: translateY(-3px);
  border-color: var(--line-strong);
}

.feature-number {
  display: grid;
  width: 38px;
  height: 38px;
  margin-bottom: 30px;
  place-items: center;
  border: 1px solid color-mix(in srgb, var(--accent) 40%, transparent);
  border-radius: 11px;
  color: var(--accent-bright);
  background: var(--accent-soft);
  font-size: 0.72rem;
  font-weight: 900;
}

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

.feature-card p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.flow-list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin: 0;
  padding: 0;
  counter-reset: flow;
  list-style: none;
}

.flow-list li {
  position: relative;
  min-height: 190px;
  padding: 26px 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(10, 23, 38, 0.72);
  counter-increment: flow;
}

.flow-list li::before {
  display: grid;
  width: 34px;
  height: 34px;
  margin-bottom: 30px;
  place-items: center;
  border-radius: 50%;
  color: #041018;
  background: var(--accent);
  content: counter(flow, decimal-leading-zero);
  font-size: 0.7rem;
  font-weight: 900;
}

.flow-list li:not(:last-child)::after {
  position: absolute;
  z-index: 2;
  top: 42px;
  right: -10px;
  width: 18px;
  color: var(--muted);
  content: "→";
  font-weight: 800;
  text-align: center;
}

.flow-list strong {
  display: block;
  margin-bottom: 7px;
  font-size: 1rem;
}

.flow-list span {
  display: block;
  color: var(--muted);
  font-size: 0.88rem;
}

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

.benefit {
  padding: 26px;
  border-top: 1px solid var(--line-strong);
}

.benefit h3 {
  margin-bottom: 10px;
  font-size: 1.15rem;
}

.benefit p {
  margin-bottom: 0;
  color: var(--muted);
}

.evidence-panel {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(260px, 0.9fr);
  gap: clamp(36px, 7vw, 90px);
  padding: clamp(32px, 6vw, 66px);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(circle at 90% 15%, var(--accent-soft), transparent 19rem),
    var(--surface);
  box-shadow: var(--shadow);
}

.evidence-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.evidence-list li {
  display: flex;
  gap: 12px;
  padding: 15px 0;
  border-bottom: 1px solid var(--line);
  color: var(--muted-bright);
}

.evidence-list li::before {
  color: var(--accent);
  content: "✓";
  font-weight: 900;
}

.transparency-note {
  margin-top: 25px;
  padding: 17px 19px;
  border-left: 2px solid var(--accent);
  color: var(--muted);
  background: rgba(255, 255, 255, 0.025);
  font-size: 0.88rem;
}

.cta-section {
  padding: 34px 0 110px;
}

.cta-panel {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 32px;
  padding: clamp(34px, 6vw, 68px);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(120deg, var(--accent-soft), transparent 55%),
    var(--surface-raised);
}

.cta-panel h2 {
  max-width: 720px;
  margin-bottom: 12px;
  font-size: clamp(2rem, 4.4vw, 4rem);
}

.cta-panel p {
  max-width: 680px;
  margin-bottom: 0;
  color: var(--muted-bright);
}

.site-footer {
  border-top: 1px solid var(--line);
  color: var(--muted);
  background: #030911;
}

.footer-shell {
  display: flex;
  min-height: 118px;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  font-size: 0.84rem;
}

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

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

@media (max-width: 940px) {
  .hero-grid,
  .split,
  .evidence-panel {
    grid-template-columns: 1fr;
  }

  .case-hero {
    padding-top: 54px;
  }

  .case-hero h1 {
    max-width: 780px;
  }

  .case-media {
    max-width: 780px;
  }

  .flow-list {
    grid-template-columns: repeat(2, 1fr);
  }

  .flow-list li:nth-child(2)::after {
    display: none;
  }

  .cta-panel {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 680px) {
  .container {
    width: min(calc(100% - 30px), var(--container));
  }

  .nav-shell {
    min-height: 70px;
  }

  .brand-logo {
    width: 126px;
  }

  .header-link:not(.header-link-primary) {
    display: none;
  }

  .header-link-primary {
    padding: 9px 12px;
    font-size: 0.8rem;
  }

  .breadcrumb {
    padding-top: 24px;
  }

  .case-hero {
    padding-top: 44px;
  }

  .case-hero h1 {
    font-size: clamp(2.75rem, 16vw, 4.5rem);
  }

  .fact-strip,
  .feature-grid,
  .flow-list,
  .benefit-grid {
    grid-template-columns: 1fr;
  }

  .fact + .fact {
    border-top: 1px solid var(--line);
    border-left: 0;
  }

  .flow-list li:not(:last-child)::after {
    display: none;
  }

  .button-row,
  .button {
    width: 100%;
  }

  .footer-shell {
    align-items: flex-start;
    flex-direction: column;
    padding: 28px 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}