:root {
  color-scheme: dark;
  --bg: #07111f;
  --panel: rgba(13, 27, 46, 0.86);
  --panel-strong: #10243b;
  --text: #f7fbff;
  --muted: #aab9c9;
  --line: rgba(255, 255, 255, 0.12);
  --accent: #00ffc8;
  --accent-dark: #003c31;
  --danger: #ff9e9e;
  --success: #7fffd4;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(0, 255, 200, 0.12), transparent 34rem),
    linear-gradient(180deg, #06101c 0%, #0a1726 52%, #07111f 100%);
  line-height: 1.55;
}

a {
  color: inherit;
}

button,
input,
select,
textarea {
  font: inherit;
}

.shell {
  width: min(1120px, calc(100% - 2rem));
  margin-inline: auto;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem max(1rem, calc((100vw - 1120px) / 2));
  border-bottom: 1px solid var(--line);
  background: rgba(5, 13, 24, 0.9);
  backdrop-filter: blur(16px);
}

.brand {
  font-weight: 800;
  letter-spacing: 0.06em;
  text-decoration: none;
}

.topbar nav {
  display: flex;
  gap: 1rem;
  color: var(--muted);
  font-size: 0.92rem;
}

.topbar nav a {
  text-decoration: none;
}

.topbar nav a:hover,
.topbar nav a:focus-visible {
  color: var(--text);
}

.hero {
  padding-block: clamp(4rem, 10vw, 8rem) clamp(3rem, 8vw, 5rem);
}

.eyebrow {
  margin: 0 0 0.65rem;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

h1,
h2 {
  margin: 0;
  line-height: 1.05;
}

h1 {
  max-width: 900px;
  font-size: clamp(2.6rem, 8vw, 6.4rem);
  letter-spacing: -0.055em;
}

h2 {
  font-size: clamp(1.8rem, 4vw, 2.7rem);
  letter-spacing: -0.035em;
}

.lede {
  max-width: 720px;
  margin: 1.4rem 0 0;
  color: var(--muted);
  font-size: clamp(1.05rem, 2vw, 1.3rem);
}

.hero-points {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 1.8rem;
}

.hero-points span {
  padding: 0.42rem 0.72rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: #dffdf7;
  background: rgba(255, 255, 255, 0.04);
}

.booking-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
  gap: 1rem;
  align-items: start;
}

.panel,
.explainer,
.faq {
  border: 1px solid var(--line);
  border-radius: 24px;
  background: var(--panel);
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.18);
}

.panel {
  padding: clamp(1.25rem, 4vw, 2rem);
}

.calculator-panel {
  position: sticky;
  top: 5.5rem;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 1.4rem;
}

.compact-grid {
  margin-top: 1.5rem;
}

.form-grid label {
  display: grid;
  gap: 0.45rem;
}

.form-grid label > span {
  color: var(--muted);
  font-size: 0.86rem;
  font-weight: 700;
}

.wide {
  grid-column: 1 / -1;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 0.82rem 0.9rem;
  color: var(--text);
  background: rgba(2, 10, 20, 0.72);
  outline: none;
}

textarea {
  resize: vertical;
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(0, 255, 200, 0.12);
}

.estimate-card {
  display: grid;
  gap: 0.25rem;
  margin-top: 1.4rem;
  padding: 1.2rem;
  border-radius: 18px;
  color: #06140f;
  background: linear-gradient(135deg, #78ffe1, #d7fff6);
}

.estimate-card span,
.estimate-card small {
  color: #245447;
}

.estimate-card strong {
  font-size: clamp(2rem, 5vw, 3.6rem);
  line-height: 1;
}

.fine-print {
  margin: 1rem 0 0;
  color: var(--muted);
  font-size: 0.82rem;
}

.submit-row {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

button {
  border: 0;
  border-radius: 999px;
  padding: 0.88rem 1.25rem;
  font-weight: 800;
  color: var(--accent-dark);
  background: var(--accent);
  cursor: pointer;
}

button:hover,
button:focus-visible {
  transform: translateY(-1px);
  box-shadow: 0 10px 30px rgba(0, 255, 200, 0.18);
}

button:disabled {
  opacity: 0.55;
  cursor: wait;
  transform: none;
}

#formStatus {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
}

#formStatus[data-state="success"] {
  color: var(--success);
}

#formStatus[data-state="error"] {
  color: var(--danger);
}

.honeypot {
  position: absolute;
  left: -10000px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.explainer,
.faq {
  margin-top: 1rem;
  padding: clamp(1.4rem, 4vw, 2.3rem);
}

.explainer {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
  gap: 2rem;
}

.explainer ol {
  margin: 0;
  padding-left: 1.25rem;
  color: var(--muted);
}

.explainer li + li {
  margin-top: 0.8rem;
}

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

.faq details {
  border-top: 1px solid var(--line);
  padding: 1rem 0;
}

.faq details:first-of-type {
  margin-top: 1.2rem;
}

.faq summary {
  cursor: pointer;
  font-weight: 800;
}

.faq details p {
  max-width: 760px;
  margin: 0.7rem 0 0;
  color: var(--muted);
}

.footer {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding-block: 2.5rem;
  color: var(--muted);
  font-size: 0.88rem;
}

@media (max-width: 780px) {
  .booking-grid,
  .explainer {
    grid-template-columns: 1fr;
  }

  .calculator-panel {
    position: static;
  }

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

  .wide {
    grid-column: auto;
  }

  .topbar nav {
    gap: 0.7rem;
    font-size: 0.82rem;
  }

  .footer {
    flex-direction: column;
  }
}