/* Obsidian Rain — Data Engineering Insight */
:root {
  --jet: #05070c;
  --midnight: #0b1220;
  --obsidian: #111827;
  --glass: #161f2e;
  --silver-rain: #c5d0dc;
  --silver-muted: #8a96a8;
  --cyan-reflect: #7ec8d8;
  --cyan-soft: rgba(126, 200, 216, 0.35);
  --rain-line: rgba(197, 208, 220, 0.12);
  --text: #e6eef6;
  --text-dim: #9aa8ba;
  --font-display: "Saira Condensed", "Arial Narrow", sans-serif;
  --font-body: "Saira", "Segoe UI", sans-serif;
  --space: clamp(1rem, 2vw, 1.75rem);
  --max: 70rem;
  --header-h: 4.1rem;
  --ease-rain: cubic-bezier(0.22, 1, 0.36, 1);
}

*,
*::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: 1.02rem;
  line-height: 1.65;
  letter-spacing: 0.01em;
  color: var(--text);
  background:
    radial-gradient(ellipse 70% 45% at 15% -5%, rgba(126, 200, 216, 0.12), transparent 55%),
    radial-gradient(ellipse 50% 40% at 95% 10%, rgba(11, 18, 32, 0.9), transparent 50%),
    linear-gradient(180deg, var(--jet) 0%, var(--midnight) 48%, var(--jet) 100%);
  background-attachment: fixed;
}

body::before {
  content: "";
  pointer-events: none;
  position: fixed;
  inset: 0;
  z-index: 0;
  opacity: 0.22;
  background-image:
    radial-gradient(1.5px 1.5px at 12% 18%, rgba(197, 208, 220, 0.55), transparent),
    radial-gradient(1px 1px at 38% 62%, rgba(126, 200, 216, 0.45), transparent),
    radial-gradient(1.5px 1.5px at 67% 28%, rgba(197, 208, 220, 0.4), transparent),
    radial-gradient(1px 1px at 84% 74%, rgba(126, 200, 216, 0.5), transparent),
    radial-gradient(1px 1px at 52% 88%, rgba(197, 208, 220, 0.35), transparent);
  animation: dropletDrift 18s linear infinite;
}

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

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

a {
  color: var(--cyan-reflect);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
  transition: color 0.25s var(--ease-rain);
}

a:hover {
  color: var(--silver-rain);
}

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 500;
  line-height: 1.15;
  letter-spacing: 0.04em;
  color: var(--text);
  text-transform: none;
}

h1 { font-size: clamp(2.15rem, 5vw, 3.4rem); font-weight: 600; }
h2 { font-size: clamp(1.55rem, 3vw, 2.2rem); }
h3 { font-size: 1.25rem; }

.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(14px);
  background: rgba(5, 7, 12, 0.78);
  border-bottom: 1px solid var(--rain-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: 1.45rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--silver-rain);
  text-decoration: none;
  text-transform: uppercase;
}

.brand:hover {
  color: #fff;
}

.site-nav ul {
  display: flex;
  gap: 1.4rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-nav a {
  text-decoration: none;
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-dim);
}

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

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

.nav-toggle__bar {
  display: block;
  width: 1.35rem;
  height: 1.5px;
  margin: 0.3rem 0;
  background: var(--silver-rain);
}

@media (max-width: 760px) {
  .nav-toggle { display: block; }
  .site-nav {
    position: absolute;
    top: var(--header-h);
    left: 0;
    right: 0;
    background: var(--obsidian);
    border-bottom: 1px solid var(--rain-line);
    padding: 1rem var(--space) 1.25rem;
    display: none;
  }
  .site-nav.is-open { display: block; }
  .site-nav ul {
    flex-direction: column;
    gap: 0.85rem;
  }
}

/* Buttons — rain ripples */
.btn {
  position: relative;
  overflow: hidden;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.85rem 1.65rem;
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  text-decoration: none;
  border: 0;
  cursor: pointer;
  color: var(--text);
  background: transparent;
  isolation: isolate;
  transition: transform 0.35s var(--ease-rain), color 0.25s;
}

.btn--rain {
  color: var(--jet);
  background: linear-gradient(135deg, var(--cyan-reflect), #a8d8e4 45%, var(--silver-rain));
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.35),
    0 0 0 1px rgba(126, 200, 216, 0.25),
    0 10px 30px rgba(0, 0, 0, 0.35);
}

.btn--rain:hover {
  transform: translateY(-1px);
  color: var(--jet);
  text-decoration: none;
}

.btn--ghost {
  border: 1px solid rgba(197, 208, 220, 0.35);
  color: var(--silver-rain);
  background: rgba(17, 24, 39, 0.55);
}

.btn--ghost:hover {
  border-color: var(--cyan-reflect);
  color: #fff;
  text-decoration: none;
  background: rgba(126, 200, 216, 0.08);
}

.rain-ripple {
  position: absolute;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.55);
  box-shadow:
    0 0 0 4px rgba(126, 200, 216, 0.2),
    0 0 0 10px rgba(197, 208, 220, 0.08);
  pointer-events: none;
  animation: rainRipple 0.7s var(--ease-rain) forwards;
}

.text-link {
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--cyan-reflect);
}

/* Hero — full-bleed stack (varied from split-panel sites) */
.hero--rain {
  position: relative;
  min-height: min(92vh, 52rem);
  display: flex;
  align-items: flex-end;
  overflow: hidden;
  background: var(--jet);
}

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

.hero__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  animation: heroSheen 28s ease-in-out infinite alternate;
}

.hero__veil {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(5, 7, 12, 0.35) 0%, rgba(5, 7, 12, 0.55) 40%, rgba(5, 7, 12, 0.94) 100%),
    radial-gradient(ellipse 60% 50% at 70% 30%, rgba(126, 200, 216, 0.14), transparent 60%);
  pointer-events: none;
}

.hero__content {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: var(--max);
  margin: 0 auto;
  padding: clamp(3rem, 10vh, 6rem) var(--space) clamp(2.5rem, 7vh, 4.5rem);
  animation: riseIn 1s var(--ease-rain) both;
}

.hero__mark {
  font-family: var(--font-display);
  font-size: clamp(2.6rem, 7vw, 4.6rem);
  font-weight: 700;
  line-height: 0.95;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin: 0 0 1.25rem;
  color: #f0f6fb;
  text-shadow: 0 0 40px rgba(126, 200, 216, 0.35);
}

.hero__title {
  font-size: clamp(1.35rem, 2.5vw, 1.85rem);
  font-weight: 400;
  max-width: 18em;
  margin: 0 0 1rem;
  color: var(--silver-rain);
  letter-spacing: 0.06em;
}

.hero__lead {
  max-width: 34em;
  margin: 0 0 1.85rem;
  color: var(--text-dim);
  font-weight: 300;
  font-size: 1.05rem;
}

@media (max-width: 700px) {
  .hero--rain {
    min-height: min(88vh, 40rem);
  }
}

@keyframes heroSheen {
  from { transform: scale(1.03) translate3d(0, 0, 0); }
  to { transform: scale(1.1) translate3d(-1%, 1%, 0); }
}

@keyframes riseIn {
  from { opacity: 0; transform: translateY(1.4rem); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes rainRipple {
  from { transform: scale(0.2); opacity: 0.85; }
  to { transform: scale(1); opacity: 0; }
}

@keyframes dropletDrift {
  from { transform: translateY(0); }
  to { transform: translateY(18px); }
}

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

.section--glass {
  position: relative;
}

.section--glass::before {
  content: "";
  position: absolute;
  left: 8%;
  top: 0;
  width: 35%;
  height: 70%;
  background: radial-gradient(circle, var(--cyan-soft), transparent 70%);
  pointer-events: none;
  z-index: -1;
  animation: haloPulse 8s ease-in-out infinite alternate;
}

.section--rainline {
  border-top: 1px solid var(--rain-line);
  border-bottom: 1px solid var(--rain-line);
  background: linear-gradient(180deg, rgba(17, 24, 39, 0.55), rgba(5, 7, 12, 0.2));
}

.section__head {
  margin-bottom: 2rem;
  max-width: 36em;
}

.section__head p,
.page-hero > p {
  color: var(--text-dim);
}

.section__kicker {
  font-family: var(--font-display);
  font-size: 1.55rem;
  letter-spacing: 0.06em;
  color: var(--cyan-reflect);
  margin: 0.35rem 0 0.75rem;
}

.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: 0.85rem;
  margin-top: 1.75rem;
}

.price-line {
  color: var(--silver-rain);
  font-weight: 500;
  letter-spacing: 0.03em;
}

.media-frame {
  margin: 0;
  position: relative;
  overflow: hidden;
  border-radius: 2px;
  box-shadow:
    0 0 0 1px rgba(126, 200, 216, 0.15),
    inset 0 0 40px rgba(5, 7, 12, 0.25),
    0 24px 50px rgba(0, 0, 0, 0.45);
  background: var(--glass);
}

.media-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 20% 15%, rgba(255, 255, 255, 0.08), transparent 35%),
    linear-gradient(135deg, transparent 40%, rgba(126, 200, 216, 0.06));
  pointer-events: none;
}

.media-frame img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.media-frame--sm img {
  aspect-ratio: 5 / 4;
}

.offer-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--rain-line);
}

.offer-list__item a {
  display: grid;
  grid-template-columns: 1.2fr 1.6fr auto;
  gap: 1rem;
  align-items: baseline;
  padding: 1.35rem 0;
  border-bottom: 1px solid var(--rain-line);
  text-decoration: none;
  color: inherit;
  transition: background 0.3s, padding-left 0.35s var(--ease-rain);
}

.offer-list__item a:hover {
  padding-left: 0.45rem;
  background: linear-gradient(90deg, rgba(126, 200, 216, 0.08), transparent);
}

.offer-list__title {
  font-family: var(--font-display);
  font-size: 1.4rem;
  letter-spacing: 0.05em;
  color: var(--silver-rain);
}

.offer-list__short {
  color: var(--text-dim);
  font-size: 0.95rem;
}

.offer-list__meta {
  color: var(--cyan-reflect);
  font-size: 0.95rem;
  white-space: nowrap;
}

@media (max-width: 700px) {
  .offer-list__item a {
    grid-template-columns: 1fr;
    gap: 0.35rem;
  }
}

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

.evidence li {
  padding: 1.25rem 0 1.25rem 1.25rem;
  border-left: 1px solid rgba(126, 200, 216, 0.45);
  background: linear-gradient(90deg, rgba(22, 31, 46, 0.75), transparent);
}

.evidence h3 {
  margin: 0 0 0.4rem;
}

.evidence p {
  margin: 0;
  color: var(--text-dim);
}

.quote {
  margin: 0;
  max-width: 40rem;
  padding: 1.5rem 0 1.5rem 1.5rem;
  border-left: 1px solid var(--cyan-reflect);
}

.quote p {
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 2.5vw, 1.75rem);
  font-weight: 400;
  letter-spacing: 0.03em;
  line-height: 1.35;
  color: var(--silver-rain);
  margin: 0 0 1rem;
}

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

/* Page heroes */
.page-hero {
  max-width: var(--max);
  margin: 0 auto;
  padding: clamp(2.5rem, 6vw, 4rem) var(--space) 1rem;
}

.page-hero--media {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: clamp(1.5rem, 4vw, 3rem);
  align-items: center;
  max-width: var(--max);
  margin: 0 auto;
  padding: clamp(2rem, 5vw, 3.5rem) var(--space);
}

.page-hero__text .eyebrow,
.eyebrow {
  font-family: var(--font-display);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--cyan-reflect);
  font-size: 0.95rem;
  margin: 0 0 0.75rem;
}

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

/* Services / blog indexes */
.service-index {
  display: grid;
  gap: 2.5rem;
}

.service-index__row {
  display: grid;
  grid-template-columns: minmax(0, 280px) 1fr;
  gap: 1.5rem;
  align-items: center;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--rain-line);
}

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

.service-index__row h2 a {
  text-decoration: none;
  color: var(--silver-rain);
}

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

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

.blog-index {
  display: grid;
  gap: 2rem;
}

.blog-index__link {
  display: grid;
  grid-template-columns: minmax(0, 280px) 1fr;
  gap: 1.35rem;
  text-decoration: none;
  color: inherit;
  align-items: center;
  padding-bottom: 1.75rem;
  border-bottom: 1px solid var(--rain-line);
}

.blog-index__link img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  box-shadow: 0 0 0 1px rgba(126, 200, 216, 0.12);
}

.blog-index__link time {
  display: block;
  font-family: var(--font-display);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--cyan-reflect);
  font-size: 0.9rem;
  margin-bottom: 0.35rem;
}

.blog-index__link h2 {
  margin: 0 0 0.4rem;
  font-size: 1.55rem;
  color: var(--silver-rain);
}

.blog-index__link p {
  margin: 0;
  color: var(--text-dim);
}

.blog-index__link:hover h2 {
  color: #fff;
}

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

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  list-style: none;
  margin: 1rem 0 0;
  padding: 0;
}

.tag-row li {
  font-family: var(--font-display);
  font-size: 0.9rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-dim);
  border-bottom: 1px solid rgba(126, 200, 216, 0.35);
  padding-bottom: 0.15rem;
}

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

.check-list li {
  padding-left: 1.1rem;
  position: relative;
  color: var(--text-dim);
}

.check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.65em;
  width: 0.45rem;
  height: 0.45rem;
  border-radius: 50%;
  background: var(--cyan-reflect);
  box-shadow: 0 0 8px var(--cyan-soft);
}

.process-steps {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: step;
  display: grid;
  gap: 1.75rem;
}

.process-steps li {
  counter-increment: step;
  padding-left: 3.5rem;
  position: relative;
}

.process-steps li::before {
  content: counter(step, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 0;
  font-family: var(--font-display);
  font-size: 1.35rem;
  letter-spacing: 0.08em;
  color: var(--cyan-reflect);
}

.process-steps h2 {
  margin: 0 0 0.4rem;
  font-size: 1.45rem;
}

.process-steps p {
  margin: 0;
  color: var(--text-dim);
}

.prose p {
  max-width: 42rem;
  color: var(--text-dim);
}

.prose.legal h2 {
  margin-top: 2rem;
}

.prose.legal ul {
  color: var(--text-dim);
}

/* Contact form */
.contact-form {
  display: grid;
  gap: 1rem;
  padding: 1.5rem;
  background:
    linear-gradient(160deg, rgba(22, 31, 46, 0.9), rgba(11, 18, 32, 0.75));
  border: 1px solid var(--rain-line);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

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

.form-field label {
  font-family: var(--font-display);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.95rem;
  color: var(--silver-rain);
}

.form-field input,
.form-field textarea {
  font: inherit;
  color: var(--text);
  background: rgba(5, 7, 12, 0.65);
  border: 1px solid rgba(197, 208, 220, 0.2);
  padding: 0.75rem 0.85rem;
  border-radius: 0;
}

.form-field input:focus,
.form-field textarea:focus {
  outline: 1px solid var(--cyan-reflect);
  border-color: var(--cyan-reflect);
}

.form-field.is-invalid input,
.form-field.is-invalid textarea {
  border-color: #d98a8a;
}

.field-error,
.form-status--error {
  color: #e0a0a0;
  font-size: 0.92rem;
  margin: 0;
}

.form-status--success {
  color: var(--cyan-reflect);
  margin: 0.5rem 0 0;
}

/* Footer */
.site-footer {
  margin-top: 3rem;
  border-top: 1px solid var(--rain-line);
  background: rgba(5, 7, 12, 0.85);
  padding: 2.5rem var(--space) 1.5rem;
}

.site-footer__inner {
  max-width: var(--max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr;
  gap: 1.75rem;
}

.site-footer__name {
  font-family: var(--font-display);
  font-size: 1.35rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin: 0 0 0.35rem;
  color: var(--silver-rain);
}

.site-footer p {
  margin: 0.25rem 0;
  color: var(--text-dim);
  font-size: 0.95rem;
}

.site-footer__legal {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.site-footer__legal a {
  text-decoration: none;
  font-family: var(--font-display);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.95rem;
}

.site-footer__copy {
  max-width: var(--max);
  margin: 2rem auto 0;
  padding-top: 1rem;
  border-top: 1px solid var(--rain-line);
  color: var(--silver-muted);
  font-size: 0.85rem;
}

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

/* Cookie banner */
.cookie-banner {
  position: fixed;
  left: var(--space);
  right: var(--space);
  bottom: var(--space);
  z-index: 50;
  max-width: 36rem;
  margin: 0 auto;
  padding: 1.15rem 1.25rem;
  background: linear-gradient(160deg, rgba(22, 31, 46, 0.97), rgba(5, 7, 12, 0.96));
  border: 1px solid rgba(126, 200, 216, 0.25);
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.5);
}

.cookie-banner__inner {
  display: grid;
  gap: 1rem;
}

.cookie-banner p {
  margin: 0;
  color: var(--text-dim);
  font-size: 0.95rem;
}

.cookie-banner__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
}

/* 404 */
.error-page {
  min-height: 60vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  max-width: var(--max);
  margin: 0 auto;
  padding: 4rem var(--space);
}

.error-page h1 {
  margin-bottom: 0.75rem;
}

.error-page p {
  color: var(--text-dim);
  max-width: 28rem;
}

@keyframes haloPulse {
  from { opacity: 0.45; transform: scale(1); }
  to { opacity: 0.9; transform: scale(1.12); }
}