/* ==========================================================================
   Xpert AI — design tokens
   ========================================================================== */

:root {
  --ink: #0e2a47;
  --ink-deep: #071a2c;
  --signal: #c8963e;
  --signal-deep: #a87a2c;
  --slate: #3e5670;
  --muted: #5f7286;
  --line: #e1e7ee;
  --mist: #f4f7fa;
  --white: #ffffff;
  --on-dark: #b9c7d6;

  --sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas,
    "Liberation Mono", monospace;

  --gutter: clamp(20px, 5vw, 64px);
  --max: 1200px;
  --section-y: clamp(72px, 9vw, 128px);
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

/* ==========================================================================
   Reset
   ========================================================================== */

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--white);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

a {
  color: inherit;
}

h1,
h2,
h3,
h4 {
  margin: 0;
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.12;
}

p {
  margin: 0;
}

ul,
ol {
  margin: 0;
  padding: 0;
}

::selection {
  background: var(--signal);
  color: var(--ink);
}

:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 3px;
}

.skip {
  position: absolute;
  left: -9999px;
}

.skip:focus {
  left: 16px;
  top: 16px;
  z-index: 100;
  background: var(--white);
  padding: 10px 16px;
}

/* ==========================================================================
   Layout
   ========================================================================== */

.wrap {
  width: 100%;
  max-width: var(--max);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section {
  padding-block: var(--section-y);
}

.section--mist {
  background: var(--mist);
}

.section--ink {
  background: var(--ink);
  color: var(--white);
}

.section--tight {
  padding-block: clamp(56px, 6vw, 88px);
}

.rule {
  height: 1px;
  border: 0;
  margin: 0;
  background: var(--line);
}

.mt-s {
  margin-top: 24px;
}

.mt-m {
  margin-top: clamp(32px, 4vw, 56px);
}

.mt-l {
  margin-top: clamp(48px, 6vw, 80px);
}

/* ==========================================================================
   Type
   ========================================================================== */

.display {
  font-size: clamp(2.6rem, 5.4vw, 4.5rem);
  line-height: 1.04;
  letter-spacing: -0.035em;
  font-weight: 600;
}

h2.h2 {
  font-size: clamp(1.85rem, 3.2vw, 2.85rem);
  letter-spacing: -0.028em;
}

h3.h3 {
  font-size: 1.2rem;
  letter-spacing: -0.015em;
  line-height: 1.3;
}

.lede {
  font-size: clamp(1.0625rem, 1.3vw, 1.1875rem);
  line-height: 1.6;
  color: var(--slate);
  max-width: 62ch;
}

.section--ink .lede {
  color: var(--on-dark);
}

.body {
  color: var(--slate);
  max-width: 66ch;
}

.body + .body {
  margin-top: 1.1em;
}

.mono {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--slate);
}

.eyebrow::before {
  content: "";
  width: 26px;
  height: 1px;
  background: var(--signal);
  flex: none;
}

.section--ink .eyebrow,
.hero .eyebrow {
  color: var(--signal);
}

.section-head {
  display: flex;
  flex-direction: column;
  gap: 20px;
  max-width: 780px;
}

.section-head + .section-body {
  margin-top: clamp(40px, 5vw, 64px);
}

/* ==========================================================================
   Buttons & links
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 24px;
  border: 1px solid transparent;
  border-radius: 2px;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.01em;
  text-decoration: none;
  cursor: pointer;
  transition: background 0.22s var(--ease), border-color 0.22s var(--ease),
    color 0.22s var(--ease);
}

.btn svg {
  flex: none;
  transition: transform 0.22s var(--ease);
}

.btn:hover svg {
  transform: translateX(3px);
}

.btn--primary {
  background: var(--signal);
  color: var(--ink);
}

.btn--primary:hover {
  background: var(--signal-deep);
}

.btn--ghost {
  border-color: rgba(255, 255, 255, 0.34);
  color: var(--white);
}

.btn--ghost:hover {
  border-color: var(--signal);
  color: var(--signal);
}

.btn--outline {
  border-color: rgba(14, 42, 71, 0.28);
  color: var(--ink);
}

.btn--outline:hover {
  border-color: var(--ink);
}

.link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  border-bottom: 1px solid currentColor;
  padding-bottom: 2px;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

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

.section--ink .link:hover,
.hero .link:hover {
  color: var(--signal);
}

/* ==========================================================================
   Header
   ========================================================================== */

.header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 60;
  color: var(--white);
  border-bottom: 1px solid transparent;
  transition: background 0.3s var(--ease), color 0.3s var(--ease),
    border-color 0.3s var(--ease);
}

.header__inner {
  display: flex;
  align-items: center;
  gap: 40px;
  height: 76px;
}

.header.is-solid {
  background: rgba(255, 255, 255, 0.96);
  color: var(--ink);
  border-bottom-color: var(--line);
  backdrop-filter: saturate(180%) blur(12px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.14em;
}

.brand__sep {
  width: 1px;
  height: 16px;
  background: var(--signal);
}

.brand__ai {
  color: var(--signal);
  letter-spacing: 0.14em;
}

.nav {
  display: flex;
  align-items: center;
  gap: 34px;
  margin-left: auto;
}

.nav a {
  position: relative;
  font-size: 14px;
  text-decoration: none;
  opacity: 0.82;
  padding: 8px 0;
  transition: opacity 0.2s var(--ease);
}

.nav a:hover {
  opacity: 1;
}

.nav a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 100%;
  bottom: 0;
  height: 2px;
  background: var(--signal);
  transition: right 0.26s var(--ease);
}

.nav a:hover::after,
.nav a[aria-current="page"]::after {
  right: 0;
}

.nav a[aria-current="page"] {
  opacity: 1;
}

.header__cta {
  margin-left: 8px;
}

.nav-toggle {
  display: none;
  margin-left: auto;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  border: 1px solid currentColor;
  border-radius: 2px;
  background: none;
  color: inherit;
  cursor: pointer;
  opacity: 0.7;
}

@media (max-width: 960px) {
  .header__inner {
    gap: 16px;
  }

  .nav-toggle {
    display: inline-flex;
    order: 3;
    margin-left: 12px;
  }

  .header__cta {
    order: 2;
    margin-left: auto;
    padding: 11px 16px;
    font-size: 13px;
  }

  .nav {
    position: fixed;
    inset: 76px 0 auto;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    margin: 0;
    padding: 8px var(--gutter) 20px;
    background: var(--ink-deep);
    color: var(--white);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    opacity: 0;
    transform: translateY(-10px);
    pointer-events: none;
    transition: opacity 0.26s var(--ease), transform 0.26s var(--ease);
  }

  .nav a {
    width: 100%;
    padding: 16px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    font-size: 16px;
    opacity: 0.9;
  }

  .nav a::after {
    display: none;
  }

  body.nav-open .nav {
    opacity: 1;
    transform: none;
    pointer-events: auto;
  }

  body.nav-open {
    overflow: hidden;
  }
}

@media (max-width: 560px) {
  .header__cta {
    display: none;
  }
}

/* ==========================================================================
   Hero
   ========================================================================== */

.hero {
  position: relative;
  display: flex;
  align-items: flex-end;
  min-height: min(94vh, 900px);
  padding: 148px 0 clamp(48px, 6vw, 72px);
  color: var(--white);
  background: var(--ink-deep);
  overflow: hidden;
}

.hero--page {
  min-height: 62vh;
  padding-top: 180px;
}

.hero__bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
}

.hero__bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    rgba(7, 26, 44, 0.9) 0%,
    rgba(7, 26, 44, 0.62) 45%,
    rgba(7, 26, 44, 0.94) 100%
  );
}

.hero__inner {
  position: relative;
  z-index: 2;
  width: 100%;
}

.hero h1 {
  margin-top: 24px;
  max-width: 18ch;
}

.hero__sub {
  margin-top: 28px;
  max-width: 54ch;
  font-size: clamp(1.0625rem, 1.35vw, 1.25rem);
  line-height: 1.6;
  color: var(--on-dark);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 40px;
}

.hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 44px;
  margin-top: clamp(48px, 7vw, 88px);
  padding-top: 22px;
  border-top: 1px solid rgba(255, 255, 255, 0.16);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--on-dark);
}

.hero__meta span {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.hero__meta span::before {
  content: "";
  width: 4px;
  height: 4px;
  background: var(--signal);
  flex: none;
}

/* ==========================================================================
   Statement
   ========================================================================== */

.statement {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  gap: clamp(32px, 6vw, 96px);
  align-items: start;
}

.statement__line {
  font-size: clamp(1.75rem, 3.4vw, 2.6rem);
  line-height: 1.2;
  letter-spacing: -0.03em;
  font-weight: 600;
  max-width: 22ch;
}

.statement__line em {
  font-style: normal;
  color: var(--signal-deep);
}

@media (max-width: 860px) {
  .statement {
    grid-template-columns: 1fr;
  }
}

/* ==========================================================================
   Practice split
   ========================================================================== */

.split {
  display: grid;
  grid-template-columns: minmax(0, 1.62fr) minmax(0, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.split__item {
  background: var(--white);
  padding: clamp(28px, 3.4vw, 48px);
  display: flex;
  flex-direction: column;
  gap: 18px;
  min-height: 320px;
}

.split__item--ink {
  background: var(--ink);
  color: var(--white);
}

.split__item--ink .body {
  color: var(--on-dark);
}

.split__item .link {
  margin-top: auto;
  align-self: flex-start;
}

.split__num {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--muted);
}

.split__item--ink .split__num {
  color: var(--signal);
}

@media (max-width: 860px) {
  .split {
    grid-template-columns: 1fr;
  }

  .split__item {
    min-height: 0;
  }
}

/* ==========================================================================
   Steps
   ========================================================================== */

.steps {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-top: 1px solid var(--line);
}

.step {
  padding: 26px 28px 0 0;
  border-right: 1px solid var(--line);
}

.step:last-child {
  border-right: 0;
  padding-right: 0;
}

.step__num {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--muted);
}

.step__bar {
  width: 28px;
  height: 2px;
  margin: 14px 0 20px;
  background: var(--signal);
}

.step h3 {
  font-size: 1.05rem;
  margin-bottom: 10px;
}

.step p {
  font-size: 15px;
  line-height: 1.6;
  color: var(--slate);
}

.section--ink .steps,
.section--ink .step {
  border-color: rgba(255, 255, 255, 0.14);
}

.section--ink .step p {
  color: var(--on-dark);
}

.section--ink .step__num {
  color: var(--signal);
}

@media (max-width: 860px) {
  .steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .step {
    padding: 24px 24px 24px 0;
  }

  .step:nth-child(2n) {
    border-right: 0;
    padding-right: 0;
  }

  .step:nth-child(n + 3) {
    border-top: 1px solid var(--line);
    padding-top: 24px;
  }

  .section--ink .step:nth-child(n + 3) {
    border-top-color: rgba(255, 255, 255, 0.14);
  }
}

@media (max-width: 560px) {
  .steps {
    grid-template-columns: 1fr;
  }

  .step {
    border-right: 0;
    padding: 24px 0;
    border-top: 1px solid var(--line);
  }

  .step:first-child {
    border-top: 0;
    padding-top: 0;
  }
}

/* ==========================================================================
   Offering grid
   ========================================================================== */

.offer {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.offer__item {
  background: var(--white);
  padding: clamp(26px, 3vw, 40px);
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: background 0.25s var(--ease);
}

.offer__item:hover {
  background: var(--mist);
}

.offer__item h3 {
  font-size: 1.15rem;
}

.offer__item p {
  font-size: 15px;
  line-height: 1.6;
  color: var(--slate);
}

.offer__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 8px;
}

.tag {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
  border: 1px solid var(--line);
  padding: 4px 8px;
  border-radius: 2px;
}

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

/* ==========================================================================
   Dark feature band
   ========================================================================== */

.band {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 0.92fr);
  align-items: stretch;
  background: var(--ink);
  color: var(--white);
}

.band__text {
  padding: clamp(48px, 7vw, 96px) clamp(24px, 5vw, 72px);
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 22px;
}

.band__figure {
  position: relative;
  min-height: 320px;
  overflow: hidden;
}

.band__figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.72) contrast(1.02);
}

.band__figure::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    90deg,
    rgba(14, 42, 71, 0.75) 0%,
    rgba(14, 42, 71, 0.1) 45%,
    rgba(14, 42, 71, 0) 100%
  );
}

.band__big {
  font-family: var(--mono);
  font-size: clamp(3rem, 7vw, 5.2rem);
  line-height: 1;
  letter-spacing: -0.04em;
  color: var(--signal);
}

.band__list {
  display: flex;
  flex-direction: column;
  gap: 0;
  margin-top: 8px;
}

.band__list div {
  display: flex;
  gap: 16px;
  align-items: baseline;
  padding: 13px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  font-size: 15px;
  color: var(--on-dark);
}

.band__list span {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--signal);
  flex: none;
}

@media (max-width: 860px) {
  .band {
    grid-template-columns: 1fr;
  }

  .band__figure {
    min-height: 240px;
    order: -1;
  }
}

/* ==========================================================================
   Proof row
   ========================================================================== */

.proof {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 24px;
}

.proof__item {
  border-top: 1px solid var(--line);
  padding-top: 20px;
}

.proof__num {
  font-family: var(--mono);
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  letter-spacing: -0.03em;
  color: var(--ink);
  line-height: 1;
}

.proof__label {
  margin-top: 10px;
  font-size: 14px;
  color: var(--slate);
}

@media (max-width: 720px) {
  .proof {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 32px 24px;
  }
}

/* ==========================================================================
   Table
   ========================================================================== */

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
}

.table {
  width: 100%;
  border-collapse: collapse;
  font-size: 15px;
  min-width: 560px;
}

.table th {
  text-align: left;
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--white);
  background: var(--ink);
  padding: 14px 18px;
  white-space: nowrap;
}

.table td {
  padding: 15px 18px;
  border-bottom: 1px solid var(--line);
  color: var(--slate);
  vertical-align: top;
}

.table tr:last-child td {
  border-bottom: 0;
}

.table td:first-child {
  color: var(--ink);
  font-weight: 500;
  width: 26%;
}

.table--spec td:first-child {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 400;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}

/* ==========================================================================
   Prose blocks
   ========================================================================== */

.cols {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(28px, 5vw, 72px);
}

.cols--3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.cols--form {
  grid-template-columns: minmax(0, 1.32fr) minmax(0, 0.68fr);
  align-items: start;
}

@media (max-width: 860px) {
  .cols,
  .cols--3,
  .cols--form {
    grid-template-columns: 1fr;
  }
}

.block {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.block h3 {
  font-size: 1.1rem;
}

.block p {
  font-size: 15px;
  line-height: 1.65;
  color: var(--slate);
}

.section--ink .block p {
  color: var(--on-dark);
}

.list {
  list-style: none;
  display: flex;
  flex-direction: column;
}

.list li {
  position: relative;
  padding: 12px 0 12px 22px;
  border-top: 1px solid var(--line);
  font-size: 15px;
  color: var(--slate);
}

.list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 20px;
  width: 7px;
  height: 1px;
  background: var(--signal);
}

.section--ink .list li {
  border-color: rgba(255, 255, 255, 0.12);
  color: var(--on-dark);
}

/* ==========================================================================
   Layer stack (token factory anatomy)
   ========================================================================== */

.layers {
  border-top: 1px solid var(--line);
}

.layer {
  display: grid;
  grid-template-columns: 90px minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: clamp(16px, 3vw, 48px);
  padding: clamp(24px, 3vw, 36px) 0;
  border-bottom: 1px solid var(--line);
  align-items: baseline;
}

.layer__num {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--muted);
}

.layer h3 {
  font-size: clamp(1.15rem, 1.8vw, 1.45rem);
}

.layer p {
  font-size: 15px;
  line-height: 1.65;
  color: var(--slate);
}

@media (max-width: 860px) {
  .layer {
    grid-template-columns: 56px minmax(0, 1fr);
    gap: 8px 16px;
  }

  .layer p,
  .layer > :nth-child(3) {
    grid-column: 2;
  }
}

/* ==========================================================================
   FAQ
   ========================================================================== */

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

.faq details {
  border-bottom: 1px solid var(--line);
}

.faq summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 22px 0;
  cursor: pointer;
  list-style: none;
  font-size: 1.05rem;
  font-weight: 500;
}

.faq summary::-webkit-details-marker {
  display: none;
}

.faq summary::after {
  content: "";
  width: 11px;
  height: 11px;
  flex: none;
  border-right: 1px solid var(--slate);
  border-bottom: 1px solid var(--slate);
  transform: rotate(45deg) translateY(-2px);
  transition: transform 0.25s var(--ease);
}

.faq details[open] summary::after {
  transform: rotate(225deg) translateY(-2px);
}

.faq p {
  padding: 0 0 24px;
  max-width: 70ch;
  font-size: 15px;
  color: var(--slate);
}

/* ==========================================================================
   CTA
   ========================================================================== */

.cta {
  background: var(--ink);
  color: var(--white);
  padding-block: clamp(64px, 8vw, 112px);
  text-align: center;
}

.cta__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 22px;
}

.cta h2 {
  font-size: clamp(1.7rem, 3.4vw, 2.6rem);
  max-width: 20ch;
}

.cta p {
  color: var(--on-dark);
  max-width: 52ch;
  font-size: 16px;
}

/* ==========================================================================
   Form
   ========================================================================== */

.form {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.field--full {
  grid-column: 1 / -1;
}

.field label {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--slate);
}

.field input,
.field select,
.field textarea {
  width: 100%;
  font: inherit;
  font-size: 15px;
  color: var(--ink);
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 2px;
  padding: 13px 14px;
  transition: border-color 0.2s var(--ease), box-shadow 0.2s var(--ease);
}

.field textarea {
  min-height: 120px;
  resize: vertical;
}

.field input::placeholder,
.field textarea::placeholder {
  color: #93a2b3;
}

.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--signal);
  box-shadow: 0 0 0 3px rgba(200, 150, 62, 0.18);
}

.field select {
  appearance: none;
  background-image: linear-gradient(45deg, transparent 50%, var(--slate) 50%),
    linear-gradient(135deg, var(--slate) 50%, transparent 50%);
  background-position: calc(100% - 19px) 21px, calc(100% - 14px) 21px;
  background-size: 5px 5px, 5px 5px;
  background-repeat: no-repeat;
}

.form__foot {
  grid-column: 1 / -1;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 18px;
}

.form__note {
  font-size: 13px;
  color: var(--muted);
}

.form__status {
  display: none;
  grid-column: 1 / -1;
  border-left: 2px solid var(--signal);
  background: var(--mist);
  padding: 16px 20px;
  font-size: 15px;
  color: var(--slate);
}

.form__status.is-on {
  display: block;
}

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

/* ==========================================================================
   Contact aside
   ========================================================================== */

.aside {
  display: flex;
  flex-direction: column;
  gap: 32px;
  border-left: 1px solid var(--line);
  padding-left: clamp(24px, 4vw, 56px);
}

.aside__block {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.aside__label {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

.aside__value {
  font-size: 15px;
  color: var(--ink);
  line-height: 1.55;
}

@media (max-width: 860px) {
  .aside {
    border-left: 0;
    border-top: 1px solid var(--line);
    padding-left: 0;
    padding-top: 32px;
  }
}

/* ==========================================================================
   Footer
   ========================================================================== */

.footer {
  background: var(--ink-deep);
  color: var(--on-dark);
  padding: clamp(56px, 7vw, 88px) 0 32px;
  font-size: 14px;
}

.footer__top {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) repeat(3, minmax(0, 1fr));
  gap: clamp(24px, 5vw, 64px);
  padding-bottom: clamp(40px, 5vw, 64px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.footer__brand {
  display: flex;
  flex-direction: column;
  gap: 16px;
  max-width: 34ch;
}

.footer__brand .brand {
  color: var(--white);
}

.footer__col {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer__col h4 {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 400;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--signal);
  margin-bottom: 4px;
}

.footer__col a {
  color: var(--on-dark);
  text-decoration: none;
  transition: color 0.2s var(--ease);
}

.footer__col a:hover {
  color: var(--white);
}

.footer__bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px 32px;
  padding-top: 26px;
  font-size: 13px;
  color: rgba(185, 199, 214, 0.75);
}

.footer__bottom a {
  color: rgba(185, 199, 214, 0.9);
  text-decoration: none;
}

.footer__bottom a:hover {
  color: var(--white);
}

@media (max-width: 860px) {
  .footer__top {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .footer__brand {
    grid-column: 1 / -1;
    margin-bottom: 12px;
  }
}

/* ==========================================================================
   Diagram
   ========================================================================== */

.diagram {
  border: 1px solid var(--line);
  background: var(--white);
  padding: clamp(20px, 3vw, 36px);
  overflow-x: auto;
}

.diagram svg {
  display: block;
  width: 100%;
  min-width: 560px;
  height: auto;
}

/* ==========================================================================
   Reveal
   ========================================================================== */

[data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}

[data-reveal].is-in {
  opacity: 1;
  transform: none;
}

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

  [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }
}