/* Alpha to Zenith — site framework */

:root {
  --bg: #050510;
  --bg-elevated: rgba(12, 14, 32, 0.72);
  --surface: rgba(18, 20, 48, 0.55);
  --line: rgba(120, 210, 255, 0.22);
  --text: #f3f6ff;
  --muted: #a9b3d0;
  --cyan: #00ccff;
  --cyan-deep: #1488ff;
  --magenta: #cc33ff;
  --orange: #ff9a1f;
  --glow-cyan: 0 0 28px rgba(0, 204, 255, 0.35);
  --glow-magenta: 0 0 28px rgba(204, 51, 255, 0.28);
  --radius: 1.25rem;
  --header-h: 4.25rem;
  --shell: 72rem;
  --font-display: "Outfit", "Segoe UI", sans-serif;
  --font-body: "Plus Jakarta Sans", "Segoe UI", sans-serif;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 0.75rem);
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.65;
  color: var(--text);
  background: var(--bg);
  overflow-x: hidden;
}

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

a {
  color: var(--cyan);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
}

a:hover {
  color: #fff;
}

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

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

.skip-link {
  position: absolute;
  left: 1rem;
  top: -4rem;
  z-index: 100;
  padding: 0.6rem 0.9rem;
  background: var(--cyan);
  color: #041018;
  font-weight: 700;
  border-radius: 0.5rem;
}

.skip-link:focus {
  top: 1rem;
  color: #041018;
}

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

.atmosphere {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(1200px 600px at 10% -10%, rgba(0, 180, 255, 0.16), transparent 60%),
    radial-gradient(900px 500px at 90% 10%, rgba(180, 40, 255, 0.14), transparent 55%),
    radial-gradient(800px 400px at 70% 90%, rgba(255, 140, 20, 0.08), transparent 50%),
    var(--bg);
}

.atmosphere__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(80, 170, 255, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(80, 170, 255, 0.05) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: radial-gradient(ellipse at center, black 20%, transparent 75%);
  opacity: 0.45;
}

.atmosphere__glow {
  position: absolute;
  width: 38vw;
  height: 38vw;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.35;
}

.atmosphere__glow--cyan {
  top: -8%;
  left: -8%;
  background: #1488ff;
}

.atmosphere__glow--magenta {
  right: -10%;
  top: 18%;
  background: #a010ff;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  height: var(--header-h);
  backdrop-filter: blur(18px) saturate(1.4);
  background: rgba(5, 5, 16, 0.62);
  border-bottom: 1px solid var(--line);
}

.nav {
  position: static;
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: 1rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--text);
  text-decoration: none;
  min-width: 0;
}

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

.brand__mark {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  box-shadow: var(--glow-cyan), var(--glow-magenta);
}

.brand__wordmark {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: 0.02em;
  font-size: 1.05rem;
  line-height: 1.1;
}

.brand__alpha {
  color: #7de8ff;
}

.brand__to {
  color: var(--muted);
  font-weight: 500;
}

.brand__zenith {
  background: linear-gradient(90deg, #c44bff 0%, #ff5db1 42%, #ff9a1f 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.nav__toggle {
  display: none;
  width: 2.6rem;
  height: 2.6rem;
  border: 1px solid var(--line);
  border-radius: 0.7rem;
  background: var(--surface);
  color: var(--text);
  cursor: pointer;
}

.nav__toggle-bars,
.nav__toggle-bars::before,
.nav__toggle-bars::after {
  display: block;
  width: 1.1rem;
  height: 2px;
  background: currentColor;
  position: relative;
  margin: 0 auto;
  border-radius: 1px;
}

.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;
}

.nav__list {
  display: flex;
  align-items: center;
  gap: 0.35rem 1.25rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav__list a {
  color: var(--text);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
}

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

.nav__cta {
  display: inline-flex;
  align-items: center;
  padding: 0.45rem 0.9rem;
  border-radius: 999px;
  background: linear-gradient(90deg, #1488ff, #b12bff 55%, #ff8a1a);
  color: #fff !important;
  box-shadow: var(--glow-magenta);
}

.nav__cta:hover {
  filter: brightness(1.08);
}

.hero {
  padding: 1.5rem 0 3.5rem;
}

.masthead {
  margin: 0;
  border-radius: calc(var(--radius) + 0.15rem);
  padding: 3px;
  background: linear-gradient(90deg, #00ccff, #8a2be2 45%, #ff9a1f);
  box-shadow: 0 20px 80px rgba(20, 80, 180, 0.28);
}

.masthead img {
  width: 100%;
  border-radius: var(--radius);
  background: #070714;
}

.hero__copy {
  max-width: 42rem;
  margin-top: 2.25rem;
}

.eyebrow {
  margin: 0 0 0.7rem;
  font-family: var(--font-display);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--cyan);
}

h1,
h2,
h3 {
  font-family: var(--font-display);
  line-height: 1.12;
  letter-spacing: -0.03em;
  margin: 0 0 0.85rem;
}

h1 {
  font-size: clamp(2.15rem, 5vw, 3.6rem);
  font-weight: 700;
}

h2 {
  font-size: clamp(1.65rem, 3vw, 2.35rem);
}

h3 {
  font-size: 1.2rem;
}

.gradient-text {
  display: block;
  background: linear-gradient(90deg, #7de8ff 0%, #d14dff 40%, #ff9a1f 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.lede,
.section__header p,
.approach__copy p {
  color: var(--muted);
  margin: 0 0 1.25rem;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  min-height: 2.85rem;
  padding: 0.7rem 1.2rem;
  border-radius: 999px;
  border: 1px solid transparent;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.98rem;
  text-decoration: none;
  cursor: pointer;
  transition: transform 160ms var(--ease), filter 160ms var(--ease);
}

.btn:hover {
  transform: translateY(-1px);
}

.btn--primary {
  background: linear-gradient(90deg, #0ea5ff, #b536ff 58%, #ff8a1a);
  color: #fff;
  box-shadow: var(--glow-cyan);
}

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

.btn--ghost:hover {
  color: var(--cyan);
  border-color: rgba(0, 204, 255, 0.5);
}

.section {
  padding: 3.5rem 0;
}

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

.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.card {
  position: relative;
  padding: 1.4rem 1.3rem 1.5rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  backdrop-filter: blur(16px);
  overflow: hidden;
}

.card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 2px;
  background: linear-gradient(90deg, #00ccff, #cc33ff, #ff9a1f);
}

.card__index {
  display: block;
  margin-bottom: 0.85rem;
  font-family: var(--font-display);
  font-size: 0.8rem;
  letter-spacing: 0.14em;
  color: var(--cyan);
}

.card p {
  margin: 0;
  color: var(--muted);
}

.section--approach {
  padding-top: 1rem;
}

.approach {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  padding: 2rem;
  border: 1px solid var(--line);
  border-radius: calc(var(--radius) + 0.25rem);
  background:
    linear-gradient(180deg, rgba(20, 24, 60, 0.65), rgba(8, 10, 28, 0.5));
}

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

.steps li {
  padding: 1rem 1rem 1rem 3.1rem;
  position: relative;
  border-radius: 1rem;
  background: rgba(5, 8, 24, 0.45);
  color: var(--muted);
  counter-increment: step;
}

.steps {
  counter-reset: step;
}

.steps li::before {
  content: counter(step);
  position: absolute;
  left: 0.9rem;
  top: 1rem;
  width: 1.6rem;
  height: 1.6rem;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 700;
  color: #041018;
  background: linear-gradient(180deg, #7de8ff, #5b8cff);
}

.steps strong {
  display: block;
  color: var(--text);
  margin-bottom: 0.2rem;
  font-family: var(--font-display);
}

.contact {
  display: grid;
  gap: 1.5rem;
}

.contact-form {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  padding: 1.4rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  backdrop-filter: blur(16px);
}

.field {
  display: grid;
  gap: 0.4rem;
}

.field--full,
.contact-form__footer,
.form-status {
  grid-column: 1 / -1;
}

label {
  font-size: 0.85rem;
  font-weight: 600;
}

input,
textarea {
  width: 100%;
  padding: 0.75rem 0.85rem;
  border-radius: 0.8rem;
  border: 1px solid rgba(120, 210, 255, 0.28);
  background: rgba(4, 6, 18, 0.7);
  color: var(--text);
  font: inherit;
}

input:hover,
textarea:hover,
input:focus,
textarea:focus {
  border-color: var(--cyan);
}

textarea {
  resize: vertical;
  min-height: 8rem;
}

.contact-form__footer {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.9rem 1.2rem;
}

.contact-form__hint,
.form-status {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.form-status[data-tone="error"] {
  color: #ffb4a2;
}

.form-status[data-tone="ok"] {
  color: #8ef0c8;
}

.site-footer {
  border-top: 1px solid var(--line);
  padding: 1.5rem 0 2rem;
  color: var(--muted);
  font-size: 0.92rem;
}

.site-footer__inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.75rem 1.5rem;
  align-items: center;
}

.brand--footer {
  color: var(--text);
  font-family: var(--font-display);
  font-weight: 600;
}

.brand--footer .brand__mark {
  width: 36px;
  height: 36px;
  box-shadow: none;
}

.error-page {
  min-height: calc(100vh - var(--header-h));
  display: grid;
  align-items: center;
  padding: 3rem 0 5rem;
}

.error-page__inner {
  max-width: 38rem;
}

.error-page__mark {
  width: 72px;
  height: 72px;
  margin-bottom: 1.25rem;
}

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

  .nav__toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  .nav__panel {
    position: absolute;
    top: var(--header-h);
    left: 0;
    right: 0;
    z-index: 50;
    padding: 0.75rem 1rem 1rem;
    background: #070816;
    border-bottom: 1px solid var(--line);
    transform: translateY(-0.5rem);
    opacity: 0;
    pointer-events: none;
    visibility: hidden;
    transition: opacity 160ms var(--ease), transform 160ms var(--ease), visibility 160ms;
  }

  .nav.is-open .nav__panel {
    opacity: 1;
    transform: none;
    pointer-events: auto;
    visibility: visible;
  }

  .nav__list {
    flex-direction: column;
    align-items: stretch;
  }

  .nav__list a {
    display: block;
    padding: 0.8rem 0.2rem;
  }

  .nav__cta {
    justify-content: center;
  }
}

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

  .btn,
  .nav__panel {
    transition: none;
  }

  .btn:hover {
    transform: none;
  }
}