/* Mercury Horizon — Sys Data Lab */
:root {
  --silver: #c5cbd3;
  --silver-deep: #9aa3af;
  --peach: #f0c3a8;
  --peach-soft: #f7d9c6;
  --gold: #c9a84c;
  --gold-soft: rgba(201, 168, 76, 0.35);
  --graphite: #2f343a;
  --graphite-mid: #3d444c;
  --ink: #23282e;
  --ink-soft: #4a5159;
  --muted: #6b737c;
  --surface: rgba(245, 240, 236, 0.78);
  --line: rgba(47, 52, 58, 0.12);
  --mercury-glow: rgba(197, 203, 211, 0.55);
  --peach-glow: rgba(240, 195, 168, 0.4);
  --font-display: "Lexend", "Segoe UI", sans-serif;
  --font-body: "Figtree", "Segoe UI", sans-serif;
  --space: clamp(1rem, 2vw, 1.75rem);
  --max: 70rem;
  --header-h: 4.1rem;
  --ease-liquid: cubic-bezier(0.34, 1.3, 0.64, 1);
  --radius: 1.15rem;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 1.05rem;
  line-height: 1.65;
  letter-spacing: 0.01em;
  color: var(--ink);
  background:
    radial-gradient(ellipse 55% 42% at 12% 0%, rgba(240, 195, 168, 0.45), transparent 55%),
    radial-gradient(ellipse 48% 36% at 88% 8%, rgba(201, 168, 76, 0.22), transparent 50%),
    radial-gradient(ellipse 60% 50% at 50% 100%, rgba(197, 203, 211, 0.35), transparent 55%),
    linear-gradient(168deg, #f8f4f0 0%, #ebe6e1 42%, #d8dde4 100%);
  background-attachment: fixed;
}

body::before {
  content: "";
  pointer-events: none;
  position: fixed;
  inset: 0;
  z-index: 0;
  opacity: 0.4;
  background:
    linear-gradient(
      105deg,
      transparent 0%,
      rgba(197, 203, 211, 0.18) 28%,
      rgba(240, 195, 168, 0.22) 52%,
      rgba(201, 168, 76, 0.12) 72%,
      transparent 100%
    );
  background-size: 200% 100%;
  animation: mercuryBand 18s ease-in-out infinite alternate;
}

@keyframes mercuryBand {
  from { background-position: 0% 50%; }
  to { background-position: 100% 50%; }
}

main,
.site-header,
.site-footer,
.cookie-banner {
  position: relative;
  z-index: 1;
}

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

a {
  color: var(--graphite-mid);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
  transition: color 0.25s var(--ease-liquid);
}

a:hover {
  color: var(--gold);
}

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--ink);
}

h1 { font-size: clamp(2.1rem, 5vw, 3.35rem); font-weight: 700; }
h2 { font-size: clamp(1.45rem, 2.8vw, 2.1rem); }
h3 { font-size: 1.22rem; }

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(16px);
  background: rgba(248, 244, 240, 0.82);
  border-bottom: 1px solid var(--line);
}

.site-header__inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0.8rem var(--space);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: var(--header-h);
}

.brand {
  font-family: var(--font-display);
  font-size: 1.28rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--graphite);
  text-decoration: none;
}

.brand:hover {
  color: var(--gold);
}

.site-nav ul {
  display: flex;
  gap: 1.3rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-nav a {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  text-decoration: none;
  color: var(--ink-soft);
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  color: var(--gold);
}

.nav-toggle {
  display: none;
  background: transparent;
  border: 0;
  padding: 0.4rem;
  cursor: pointer;
}

.nav-toggle__bar {
  display: block;
  width: 1.4rem;
  height: 2px;
  margin: 0.28rem 0;
  background: var(--graphite);
  border-radius: 2px;
}

@media (max-width: 820px) {
  .nav-toggle { display: block; }
  .site-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(248, 244, 240, 0.97);
    border-bottom: 1px solid var(--line);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s var(--ease-liquid);
  }
  .site-nav.is-open { max-height: 22rem; }
  .site-nav ul {
    flex-direction: column;
    padding: 1rem var(--space) 1.4rem;
    gap: 0.9rem;
  }
}

/* Buttons — liquid mercury */
.btn {
  position: relative;
  overflow: hidden;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  font-family: var(--font-display);
  font-size: 0.98rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-decoration: none;
  border: 1px solid transparent;
  border-radius: 999px;
  padding: 0.88rem 1.5rem;
  cursor: pointer;
  transition:
    transform 0.35s var(--ease-liquid),
    box-shadow 0.35s var(--ease-liquid),
    border-radius 0.35s var(--ease-liquid),
    background 0.3s;
}

.btn--mercury {
  color: #f8f4f0;
  background:
    linear-gradient(135deg, var(--graphite) 0%, var(--graphite-mid) 42%, #5a6470 100%);
  box-shadow:
    0 10px 28px rgba(47, 52, 58, 0.28),
    inset 0 1px 0 rgba(255, 255, 255, 0.18);
}

.btn--mercury:hover {
  color: #fff;
  transform: translateY(-2px);
  box-shadow:
    0 14px 34px var(--peach-glow),
    inset 0 1px 0 rgba(255, 255, 255, 0.22);
}

.btn--mercury.is-pressed {
  transform: scale(0.94) translateY(1px);
  border-radius: 1.6rem;
  box-shadow:
    inset 0 8px 18px rgba(0, 0, 0, 0.28),
    0 2px 8px rgba(47, 52, 58, 0.2);
}

.btn--ghost {
  color: var(--graphite);
  background: rgba(255, 255, 255, 0.35);
  border-color: rgba(47, 52, 58, 0.2);
  backdrop-filter: blur(8px);
}

.btn--ghost:hover {
  color: var(--ink);
  border-color: var(--gold);
  background: rgba(240, 195, 168, 0.18);
}

.liquid-ripple {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
  background: radial-gradient(circle, rgba(240, 195, 168, 0.55) 0%, rgba(197, 203, 211, 0.25) 45%, transparent 70%);
  animation: liquidRipple 0.7s var(--ease-liquid) forwards;
}

@keyframes liquidRipple {
  from { transform: scale(0.15); opacity: 0.95; }
  to { transform: scale(1); opacity: 0; }
}

.text-link {
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: 0.03em;
  text-decoration: none;
  color: var(--graphite-mid);
  border-bottom: 1px solid var(--gold);
}

.text-link:hover { color: var(--gold); }

/* Hero — tide composition: brand anchored in liquid mercury band */
.hero--tide {
  position: relative;
  min-height: calc(100vh - var(--header-h));
  display: flex;
  align-items: flex-end;
  overflow: hidden;
}

.hero__canvas {
  position: absolute;
  inset: 0;
}

.hero__canvas img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  animation: tideDrift 26s ease-in-out infinite alternate;
}

.hero__atmosphere {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(105deg, rgba(47, 52, 58, 0.15) 0%, transparent 40%),
    linear-gradient(0deg, rgba(47, 52, 58, 0.88) 0%, rgba(47, 52, 58, 0.45) 38%, rgba(240, 195, 168, 0.2) 72%, transparent 100%),
    radial-gradient(ellipse 70% 40% at 18% 88%, rgba(197, 203, 211, 0.45), transparent 60%),
    radial-gradient(ellipse 50% 35% at 78% 92%, rgba(201, 168, 76, 0.28), transparent 65%);
  animation: tidePulse 14s ease-in-out infinite alternate;
}

.hero__tide {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: var(--max);
  margin: 0 auto;
  padding: clamp(2.8rem, 9vw, 5.5rem) var(--space) clamp(2.4rem, 6vw, 3.8rem);
  color: #f8f4f0;
  text-align: left;
  animation: tideRise 1.2s var(--ease-liquid) both;
}

.hero__brand {
  font-family: var(--font-display);
  font-size: clamp(3rem, 9vw, 5.6rem);
  font-weight: 700;
  letter-spacing: -0.035em;
  color: #fff;
  margin: 0 0 0.85rem;
  line-height: 0.92;
  text-shadow: 0 12px 42px rgba(0, 0, 0, 0.4);
  animation: brandSheen 1.35s var(--ease-liquid) both;
}

.hero__tide h1 {
  margin: 0 0 0.85rem;
  max-width: 22ch;
  font-size: clamp(1.15rem, 2.4vw, 1.55rem);
  font-weight: 500;
  letter-spacing: 0.01em;
  color: rgba(248, 244, 240, 0.9);
}

.hero__lead {
  margin: 0 0 1.6rem;
  max-width: 36rem;
  color: rgba(248, 244, 240, 0.76);
  font-weight: 400;
  font-size: 1.05rem;
}

@keyframes brandSheen {
  from { opacity: 0; transform: translateX(-16px) scale(0.98); filter: blur(4px); }
  to { opacity: 1; transform: translateX(0) scale(1); filter: blur(0); }
}

@keyframes tideRise {
  from { opacity: 0; transform: translateY(28px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes tideDrift {
  from { transform: scale(1.04) translateX(0); }
  to { transform: scale(1.1) translateX(-1.5%); }
}

@keyframes tidePulse {
  from { opacity: 0.88; }
  to { opacity: 1; }
}

@media (max-width: 700px) {
  .hero--tide { min-height: 82vh; }
}

/* Sections */
.section {
  max-width: var(--max);
  margin: 0 auto;
  padding: clamp(2.5rem, 6vw, 4.5rem) var(--space);
}

.section--mercury {
  background: var(--surface);
  border-block: 1px solid var(--line);
  max-width: none;
  padding-inline: 0;
  backdrop-filter: blur(8px);
}

.section--mercury > * {
  max-width: var(--max);
  margin-inline: auto;
  padding-inline: var(--space);
}

.section--peach {
  background:
    linear-gradient(115deg, rgba(240, 195, 168, 0.22), rgba(197, 203, 211, 0.28));
  border-block: 1px solid var(--line);
  max-width: none;
}

.section--peach > * {
  max-width: var(--max);
  margin-inline: auto;
  padding-inline: var(--space);
}

.section__head {
  margin-bottom: 2rem;
  max-width: 38rem;
}

.section__head p,
.section__kicker {
  color: var(--muted);
}

.section__kicker {
  font-family: var(--font-display);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.88rem;
  color: var(--gold);
  margin: 0 0 0.5rem;
}

.section__grid--split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(1.5rem, 4vw, 3rem);
  align-items: center;
}

@media (max-width: 800px) {
  .section__grid--split { grid-template-columns: 1fr; }
}

.section__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 1.75rem;
}

.price-line {
  font-family: var(--font-display);
  letter-spacing: 0.02em;
  color: var(--ink-soft);
  font-weight: 600;
}

.media-frame {
  margin: 0;
  overflow: hidden;
  border-radius: var(--radius);
  box-shadow: 0 20px 44px rgba(47, 52, 58, 0.14);
  position: relative;
}

.media-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(197, 203, 211, 0.18), rgba(240, 195, 168, 0.12));
  pointer-events: none;
}

.media-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.media-frame--sm {
  aspect-ratio: 4 / 3;
  max-width: 18rem;
}

.offer-rail {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1rem;
}

.offer-rail a {
  display: grid;
  grid-template-columns: 8rem 1fr auto;
  gap: 1rem;
  align-items: start;
  padding: 1.2rem 1.35rem;
  text-decoration: none;
  color: inherit;
  background: rgba(255, 255, 255, 0.45);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: transform 0.3s var(--ease-liquid), box-shadow 0.3s;
}

.offer-rail a:hover {
  transform: translateY(-3px);
  box-shadow: 0 14px 32px rgba(47, 52, 58, 0.1);
}

.offer-rail__meta {
  font-family: var(--font-display);
  font-size: 0.85rem;
  color: var(--gold);
  letter-spacing: 0.04em;
}

.offer-rail__title {
  display: block;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.15rem;
  margin-bottom: 0.35rem;
}

.offer-rail__short {
  display: block;
  color: var(--muted);
  font-size: 0.98rem;
}

.offer-rail__price {
  font-family: var(--font-display);
  font-weight: 600;
  white-space: nowrap;
}

@media (max-width: 720px) {
  .offer-rail a {
    grid-template-columns: 1fr;
  }
}

.evidence {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 1.5rem;
  counter-reset: evidence;
}

.evidence li {
  counter-increment: evidence;
  padding-left: 3.2rem;
  position: relative;
}

.evidence li::before {
  content: counter(evidence, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--gold);
}

.quote {
  margin: 0;
  padding: 2rem 2.2rem;
  border-radius: var(--radius);
  background:
    linear-gradient(145deg, rgba(197, 203, 211, 0.35), rgba(240, 195, 168, 0.28));
  border: 1px solid var(--line);
}

.quote p {
  font-family: var(--font-display);
  font-size: clamp(1.15rem, 2.4vw, 1.45rem);
  line-height: 1.45;
  margin: 0 0 1rem;
}

.quote footer {
  color: var(--muted);
  font-size: 0.95rem;
}

/* Page heroes */
.page-hero {
  max-width: var(--max);
  margin: 0 auto;
  padding: clamp(2.2rem, 5vw, 3.5rem) var(--space) 1rem;
}

.page-hero--media {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 2rem;
  align-items: center;
  max-width: var(--max);
  margin: 0 auto;
  padding: clamp(2rem, 5vw, 3.2rem) var(--space);
}

@media (max-width: 800px) {
  .page-hero--media { grid-template-columns: 1fr; }
}

.eyebrow {
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 0.85rem;
  color: var(--gold);
  margin: 0 0 0.6rem;
}

.prose p { max-width: 46rem; }
.prose.legal h2 { margin-top: 2rem; }

.service-index {
  display: grid;
  gap: 1.75rem;
}

.service-index__row {
  display: grid;
  grid-template-columns: 14rem 1fr;
  gap: 1.5rem;
  align-items: center;
  padding-bottom: 1.75rem;
  border-bottom: 1px solid var(--line);
}

@media (max-width: 700px) {
  .service-index__row { grid-template-columns: 1fr; }
}

.service-index__row h2 {
  margin: 0 0 0.5rem;
  font-size: 1.45rem;
}

.service-index__row h2 a {
  text-decoration: none;
  color: inherit;
}

.service-index__row h2 a:hover { color: var(--gold); }

.check-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.65rem;
}

.check-list li {
  padding-left: 1.4rem;
  position: relative;
}

.check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55rem;
  width: 0.55rem;
  height: 0.55rem;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--peach), var(--gold));
}

.blog-index {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1.5rem;
}

.blog-index__item a {
  display: grid;
  grid-template-columns: 14rem 1fr;
  gap: 1.4rem;
  text-decoration: none;
  color: inherit;
  align-items: center;
}

@media (max-width: 700px) {
  .blog-index__item a { grid-template-columns: 1fr; }
}

.blog-index time {
  display: block;
  font-size: 0.88rem;
  color: var(--muted);
  margin-bottom: 0.35rem;
}

.blog-index h2 {
  margin: 0 0 0.45rem;
  font-size: 1.35rem;
}

.process-steps {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 1.6rem;
  counter-reset: step;
}

.process-steps li {
  counter-increment: step;
  padding: 1.4rem 1.5rem 1.4rem 4.2rem;
  position: relative;
  background: rgba(255, 255, 255, 0.4);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.process-steps li::before {
  content: counter(step);
  position: absolute;
  left: 1.2rem;
  top: 1.35rem;
  width: 2rem;
  height: 2rem;
  display: grid;
  place-items: center;
  border-radius: 50%;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--graphite);
  background: linear-gradient(145deg, var(--peach-soft), var(--silver));
}

.process-steps h2 {
  margin: 0 0 0.45rem;
  font-size: 1.25rem;
}

.process-steps p { margin: 0; color: var(--ink-soft); }

/* Forms */
.contact-form {
  display: grid;
  gap: 1rem;
  padding: 1.5rem;
  background: rgba(255, 255, 255, 0.5);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.form-field {
  display: grid;
  gap: 0.35rem;
}

.form-field label {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.92rem;
}

.form-field input,
.form-field textarea {
  font: inherit;
  padding: 0.75rem 0.9rem;
  border: 1px solid rgba(47, 52, 58, 0.18);
  border-radius: 0.85rem;
  background: rgba(255, 255, 255, 0.75);
  color: var(--ink);
  transition: border-color 0.2s, box-shadow 0.2s;
}

.form-field input:focus,
.form-field textarea:focus {
  outline: none;
  border-color: var(--gold);
  box-shadow: 0 0 0 3px var(--gold-soft);
}

.form-field.is-invalid input,
.form-field.is-invalid textarea {
  border-color: #b45454;
}

.field-error {
  margin: 0;
  color: #9a3b3b;
  font-size: 0.88rem;
}

.form-status {
  margin: 0.4rem 0 0;
  font-weight: 600;
}

.form-status--success { color: #3d6b52; }
.form-status--error { color: #9a3b3b; }

/* Footer */
.site-footer {
  margin-top: 2rem;
  padding: 2.5rem var(--space) 1.5rem;
  background:
    linear-gradient(180deg, rgba(47, 52, 58, 0.92), #23282e);
  color: rgba(248, 244, 240, 0.82);
}

.site-footer a { color: var(--peach-soft); }
.site-footer a:hover { color: var(--gold); }

.site-footer__inner {
  max-width: var(--max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr;
  gap: 1.5rem;
}

@media (max-width: 800px) {
  .site-footer__inner { grid-template-columns: 1fr; }
}

.site-footer__name {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  color: #fff;
  margin: 0 0 0.4rem;
}

.site-footer__legal {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  align-content: start;
}

.site-footer__legal a { text-decoration: none; }

.site-footer__copy {
  max-width: var(--max);
  margin: 1.8rem auto 0;
  padding-top: 1rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 0.9rem;
  color: rgba(248, 244, 240, 0.55);
}

/* Cookie banner */
.cookie-banner {
  position: fixed;
  z-index: 50;
  left: var(--space);
  right: var(--space);
  bottom: var(--space);
  max-width: 36rem;
  margin: 0 auto;
  padding: 1.1rem 1.2rem;
  border-radius: var(--radius);
  background: rgba(47, 52, 58, 0.94);
  color: #f8f4f0;
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.28);
  backdrop-filter: blur(12px);
}

.cookie-banner a { color: var(--peach); }

.cookie-banner__inner {
  display: grid;
  gap: 0.9rem;
}

.cookie-banner__inner p { margin: 0; font-size: 0.95rem; }

.cookie-banner__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.cookie-banner .btn--ghost {
  color: #f8f4f0;
  border-color: rgba(255, 255, 255, 0.28);
  background: transparent;
}

.error-page {
  max-width: 36rem;
  margin: 0 auto;
  padding: clamp(4rem, 12vw, 7rem) var(--space);
  text-align: center;
}