/* Obsidian Rain — Backend Service Architect */
:root {
  --void: #050608;
  --obsidian: #0a0c10;
  --obsidian-lift: #10151c;
  --midnight: #121a2a;
  --midnight-deep: #0d1520;
  --silver: #c8d0d8;
  --silver-dim: #8a96a4;
  --rain: #a8b4c0;
  --cyan: #7dd3e0;
  --cyan-deep: #4aa8b8;
  --cyan-glow: rgba(125, 211, 224, 0.18);
  --glass: rgba(16, 21, 28, 0.72);
  --line: rgba(168, 180, 192, 0.16);
  --danger: #e08a8a;
  --ok: #7ec9a8;
  --font-display: "Barlow Condensed", sans-serif;
  --font-body: "Outfit", sans-serif;
  --space: clamp(1rem, 2vw, 1.5rem);
  --max: 1120px;
  --header-h: 4.25rem;
  --radius: 2px;
  --ease: 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: 300;
  font-size: 1.05rem;
  line-height: 1.65;
  color: var(--silver);
  background:
    radial-gradient(ellipse 80% 50% at 50% -10%, rgba(74, 168, 184, 0.12), transparent 55%),
    linear-gradient(180deg, var(--void) 0%, var(--midnight-deep) 45%, var(--void) 100%);
  background-attachment: fixed;
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  opacity: 0.35;
  background-image:
    radial-gradient(1px 1px at 10% 20%, rgba(200, 208, 216, 0.45), transparent),
    radial-gradient(1px 1px at 30% 65%, rgba(125, 211, 224, 0.35), transparent),
    radial-gradient(1.5px 1.5px at 70% 35%, rgba(200, 208, 216, 0.3), transparent),
    radial-gradient(1px 1px at 85% 80%, rgba(125, 211, 224, 0.4), transparent),
    radial-gradient(1px 1px at 50% 50%, rgba(168, 180, 192, 0.25), transparent);
  animation: raindrift 18s linear infinite;
}

@keyframes raindrift {
  from { transform: translateY(0); }
  to { transform: translateY(40px); }
}

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

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

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

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 400;
  letter-spacing: 0.02em;
  line-height: 1.15;
  color: var(--silver);
  margin: 0 0 0.6em;
}

h1 { font-size: clamp(2.6rem, 7vw, 4.8rem); font-weight: 300; }
h2 { font-size: clamp(1.8rem, 4vw, 2.6rem); }
h3 { font-size: clamp(1.35rem, 2.5vw, 1.7rem); }

p { margin: 0 0 1em; }

ul { margin: 0 0 1em; padding-left: 1.2em; }

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

#main {
  position: relative;
  z-index: 1;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(14px);
  background: rgba(5, 6, 8, 0.78);
  border-bottom: 1px solid var(--line);
}

.site-header__inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0.85rem var(--space);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: var(--header-h);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  text-decoration: none;
  color: var(--silver);
}

.brand__mark {
  width: 0.65rem;
  height: 0.65rem;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 12px var(--cyan-glow);
  flex-shrink: 0;
}

.brand__text {
  font-family: var(--font-display);
  font-size: 1.15rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-weight: 500;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.site-nav__list {
  display: flex;
  gap: 1.25rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

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

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

.nav-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--line);
  width: 2.75rem;
  height: 2.75rem;
  padding: 0;
  cursor: pointer;
  color: var(--silver);
}

.nav-toggle__bars,
.nav-toggle__bars::before,
.nav-toggle__bars::after {
  display: block;
  width: 1.15rem;
  height: 1px;
  background: currentColor;
  margin: 0 auto;
  position: relative;
}

.nav-toggle__bars::before,
.nav-toggle__bars::after {
  content: "";
  position: absolute;
  left: 0;
}

.nav-toggle__bars::before { top: -6px; }
.nav-toggle__bars::after { top: 6px; }

@media (max-width: 860px) {
  .nav-toggle { display: inline-flex; align-items: center; justify-content: center; }
  .site-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    padding: 1rem var(--space) 1.5rem;
    background: rgba(10, 12, 16, 0.96);
    border-bottom: 1px solid var(--line);
    display: none;
  }
  .site-nav.is-open { display: flex; }
  .site-nav__list {
    flex-direction: column;
    gap: 0.85rem;
  }
}

/* Buttons with rain ripples */
.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 1.5rem;
  font-family: var(--font-display);
  font-size: 1rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--void);
  background: linear-gradient(180deg, var(--cyan) 0%, var(--cyan-deep) 100%);
  border: 1px solid transparent;
  border-radius: var(--radius);
  cursor: pointer;
  overflow: hidden;
  isolation: isolate;
  transition: transform 0.2s var(--ease), box-shadow 0.2s var(--ease);
}

.btn:hover {
  color: var(--void);
  transform: translateY(-1px);
  box-shadow: 0 8px 28px rgba(74, 168, 184, 0.25);
}

.btn--ghost {
  background: transparent;
  color: var(--silver);
  border-color: var(--line);
}

.btn--ghost:hover {
  color: var(--cyan);
  border-color: var(--cyan-deep);
  box-shadow: none;
}

.btn--small {
  padding: 0.55rem 1rem;
  font-size: 0.9rem;
}

.btn--ripple .ripple {
  position: absolute;
  border-radius: 50%;
  border: 1px solid rgba(200, 208, 216, 0.45);
  transform: scale(0);
  animation: rainripple 0.85s var(--ease) forwards;
  pointer-events: none;
  z-index: 0;
}

@keyframes rainripple {
  to {
    transform: scale(2.8);
    opacity: 0;
  }
}

/* Hero — brand-first, full-bleed atmosphere */
.hero {
  position: relative;
  min-height: calc(100vh - var(--header-h));
  display: grid;
  align-items: end;
  overflow: hidden;
}

.hero__media {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.38) saturate(0.7) contrast(1.05);
}

.hero__veil {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(5, 6, 8, 0.35) 0%, rgba(5, 6, 8, 0.55) 40%, rgba(5, 6, 8, 0.92) 100%),
    linear-gradient(90deg, rgba(13, 21, 32, 0.7) 0%, transparent 55%);
}

.hero__rain {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: repeating-linear-gradient(
    -12deg,
    transparent 0,
    transparent 6px,
    rgba(168, 180, 192, 0.03) 6px,
    rgba(168, 180, 192, 0.03) 7px
  );
  animation: sheen 12s linear infinite;
  opacity: 0.6;
}

@keyframes sheen {
  from { background-position: 0 0; }
  to { background-position: 0 120px; }
}

.hero__content {
  position: relative;
  z-index: 1;
  max-width: var(--max);
  width: 100%;
  margin: 0 auto;
  padding: clamp(3rem, 10vh, 6rem) var(--space) clamp(2.5rem, 8vh, 4rem);
}

.hero__brand {
  font-family: var(--font-display);
  font-size: clamp(3rem, 10vw, 6.5rem);
  font-weight: 300;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  line-height: 0.95;
  color: var(--silver);
  margin: 0 0 1.25rem;
  max-width: 12ch;
  animation: rise 1s var(--ease) both;
}

.hero__line {
  font-family: var(--font-body);
  font-weight: 300;
  font-size: clamp(1.05rem, 2.2vw, 1.25rem);
  color: var(--rain);
  max-width: 34ch;
  margin: 0 0 1.75rem;
  animation: rise 1s 0.12s var(--ease) both;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  animation: rise 1s 0.22s var(--ease) both;
}

@keyframes rise {
  from { opacity: 0; transform: translateY(18px); }
  to { opacity: 1; transform: translateY(0); }
}

.eyebrow {
  font-family: var(--font-display);
  font-size: 0.95rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--cyan);
  margin: 0 0 0.75rem;
}

.lead {
  font-size: 1.15rem;
  color: var(--rain);
  max-width: 48ch;
}

/* Sections */
.section {
  max-width: var(--max);
  margin: 0 auto;
  padding: clamp(3.5rem, 8vw, 5.5rem) var(--space);
}

.section--narrow {
  max-width: 760px;
}

.section__head {
  margin-bottom: 2rem;
  max-width: 40rem;
}

.section__head h2 {
  margin-bottom: 0.4em;
}

.split {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: clamp(1.5rem, 4vw, 3rem);
  align-items: center;
}

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

.glass-panel {
  background: var(--glass);
  border: 1px solid var(--line);
  backdrop-filter: blur(10px);
  padding: 1.5rem;
}

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

.offer-list li {
  border-bottom: 1px solid var(--line);
}

.offer-list a {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 1rem;
  padding: 1.35rem 0;
  text-decoration: none;
  color: inherit;
  align-items: baseline;
}

.offer-list a:hover .offer-list__title {
  color: var(--cyan);
}

.offer-list__title {
  font-family: var(--font-display);
  font-size: 1.55rem;
  letter-spacing: 0.03em;
  margin: 0 0 0.35rem;
  transition: color 0.2s var(--ease);
}

.offer-list__meta {
  font-size: 0.92rem;
  color: var(--silver-dim);
  margin: 0;
}

.offer-list__price {
  font-family: var(--font-display);
  font-size: 1.2rem;
  letter-spacing: 0.04em;
  color: var(--cyan);
  white-space: nowrap;
}

.media-frame {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
}

.media-frame img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  filter: saturate(0.75) brightness(0.85);
}

.media-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 50%, rgba(5, 6, 8, 0.55));
  pointer-events: none;
}

/* Evidence / quotes — not cards as UI widgets, just typographic blocks */
.evidence {
  display: grid;
  gap: 2rem;
}

.evidence blockquote {
  margin: 0;
  padding: 0 0 0 1.25rem;
  border-left: 1px solid var(--cyan-deep);
}

.evidence blockquote p {
  font-size: 1.2rem;
  font-weight: 300;
  color: var(--silver);
  margin-bottom: 0.75rem;
}

.evidence cite {
  font-style: normal;
  font-family: var(--font-display);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.9rem;
  color: var(--silver-dim);
}

/* Service / blog grids — interaction destinations, minimal chrome */
.item-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

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

.item-link {
  display: block;
  text-decoration: none;
  color: inherit;
  border-bottom: 1px solid var(--line);
  padding-bottom: 1.25rem;
  transition: border-color 0.2s var(--ease);
}

.item-link:hover {
  border-color: var(--cyan-deep);
}

.item-link__media {
  margin-bottom: 1rem;
  overflow: hidden;
  border: 1px solid var(--line);
}

.item-link__media img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  transition: transform 0.6s var(--ease), filter 0.4s var(--ease);
  filter: brightness(0.8) saturate(0.8);
}

.item-link:hover img {
  transform: scale(1.03);
  filter: brightness(0.9) saturate(0.9);
}

.item-link h3 {
  margin-bottom: 0.35rem;
}

.item-link p {
  color: var(--silver-dim);
  margin: 0;
  font-size: 0.98rem;
}

.meta-row {
  font-family: var(--font-display);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.85rem;
  color: var(--cyan-deep);
  margin-bottom: 0.5rem;
}

/* Page shell */
.page-shell {
  max-width: 760px;
  margin: 0 auto;
  padding: clamp(2.5rem, 6vw, 4rem) var(--space) 4rem;
}

.page-intro {
  margin-bottom: 2rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--line);
}

.page-hero {
  position: relative;
  min-height: 42vh;
  display: grid;
  align-items: end;
  overflow: hidden;
  margin-bottom: 0;
}

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

.page-hero__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.4) saturate(0.7);
}

.page-hero__veil {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(5,6,8,0.2), rgba(5,6,8,0.88));
}

.page-hero__content {
  position: relative;
  z-index: 1;
  max-width: var(--max);
  margin: 0 auto;
  padding: 4rem var(--space) 2.5rem;
}

.prose h2 { margin-top: 2rem; }
.prose h3 { margin-top: 1.5rem; }
.prose li { margin-bottom: 0.4rem; }

.detail-layout {
  max-width: var(--max);
  margin: 0 auto;
  padding: 3rem var(--space) 4rem;
  display: grid;
  grid-template-columns: 1.4fr 0.8fr;
  gap: 2.5rem;
}

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

.detail-aside {
  border-top: 1px solid var(--line);
  padding-top: 1.25rem;
}

.detail-aside dl {
  margin: 0;
}

.detail-aside dt {
  font-family: var(--font-display);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-size: 0.85rem;
  color: var(--silver-dim);
  margin-top: 1rem;
}

.detail-aside dd {
  margin: 0.25rem 0 0;
  color: var(--silver);
}

.curriculum-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: step;
}

.curriculum-steps li {
  counter-increment: step;
  display: grid;
  grid-template-columns: 3.5rem 1fr;
  gap: 1rem;
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--line);
}

.curriculum-steps li::before {
  content: counter(step, decimal-leading-zero);
  font-family: var(--font-display);
  font-size: 1.6rem;
  color: var(--cyan);
  letter-spacing: 0.05em;
}

/* Forms */
.form {
  display: grid;
  gap: 1.15rem;
  max-width: 34rem;
}

.form label {
  display: grid;
  gap: 0.4rem;
  font-family: var(--font-display);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.9rem;
  color: var(--rain);
}

.form input,
.form select,
.form textarea {
  font: inherit;
  font-family: var(--font-body);
  font-size: 1rem;
  letter-spacing: normal;
  text-transform: none;
  color: var(--silver);
  background: rgba(10, 12, 16, 0.85);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0.75rem 0.9rem;
  width: 100%;
}

.form input:focus,
.form select:focus,
.form textarea:focus {
  outline: none;
  border-color: var(--cyan-deep);
  box-shadow: 0 0 0 3px var(--cyan-glow);
}

.form textarea { min-height: 140px; resize: vertical; }

.field-error {
  color: var(--danger);
  font-family: var(--font-body);
  font-size: 0.9rem;
  letter-spacing: normal;
  text-transform: none;
  min-height: 1.2em;
}

.form-status {
  padding: 0.85rem 1rem;
  border: 1px solid var(--line);
  display: none;
}

.form-status.is-visible { display: block; }
.form-status.is-success {
  border-color: var(--ok);
  color: var(--ok);
}
.form-status.is-error {
  border-color: var(--danger);
  color: var(--danger);
}

.form input.is-invalid,
.form select.is-invalid,
.form textarea.is-invalid {
  border-color: var(--danger);
}

/* Footer */
.site-footer {
  position: relative;
  z-index: 1;
  border-top: 1px solid var(--line);
  padding: 3rem var(--space) 2rem;
  background: rgba(5, 6, 8, 0.65);
}

.site-footer__grid {
  max-width: var(--max);
  margin: 0 auto 2rem;
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 2rem;
}

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

@media (max-width: 500px) {
  .site-footer__grid { grid-template-columns: 1fr; }
}

.footer-heading {
  font-size: 1rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 0.85rem;
}

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

.footer-links li { margin-bottom: 0.45rem; }

.footer-links a {
  text-decoration: none;
  color: var(--rain);
}

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

.site-footer__copy {
  max-width: var(--max);
  margin: 0 auto;
  padding-top: 1.5rem;
  border-top: 1px solid var(--line);
  font-size: 0.9rem;
  color: var(--silver-dim);
}

/* Cookie banner */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 50;
  padding: 1rem var(--space);
  background: rgba(10, 12, 16, 0.94);
  border-top: 1px solid var(--line);
  backdrop-filter: blur(12px);
}

.cookie-banner[hidden] { display: none !important; }

.cookie-banner__inner {
  max-width: var(--max);
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: center;
  justify-content: space-between;
}

.cookie-banner__inner p {
  margin: 0;
  flex: 1 1 18rem;
  font-size: 0.95rem;
  color: var(--rain);
}

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

/* 404 */
.error-page {
  min-height: calc(100vh - var(--header-h) - 12rem);
  display: grid;
  place-content: center;
  text-align: center;
  padding: 4rem var(--space);
}

.error-page h1 {
  font-size: clamp(4rem, 16vw, 9rem);
  margin-bottom: 0.2em;
  color: var(--cyan);
  opacity: 0.85;
}

.cta-band {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: linear-gradient(90deg, rgba(74, 168, 184, 0.08), transparent 60%);
}

.cta-band .section {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.cta-band h2 {
  margin: 0 0 0.35em;
}

.cta-band p {
  margin: 0;
  color: var(--rain);
  max-width: 36ch;
}

.team-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

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

.portrait {
  border: 1px solid var(--line);
  overflow: hidden;
}

.portrait img {
  width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  filter: grayscale(0.35) brightness(0.85) contrast(1.05);
}

.portrait figcaption {
  padding: 0.85rem 0 0;
}

.portrait h3 {
  margin: 0 0 0.2rem;
  font-size: 1.35rem;
}

.portrait p {
  margin: 0;
  color: var(--silver-dim);
  font-size: 0.95rem;
}