/* Vultrino landing — FeirAI visual system */

@font-face {
  font-family: "Instrument Sans";
  src: url("fonts/instrument-sans-var.woff2") format("woff2");
  font-weight: 400 700;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "IBM Plex Mono";
  src: url("fonts/ibm-plex-mono-400.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "IBM Plex Mono";
  src: url("fonts/ibm-plex-mono-500.woff2") format("woff2");
  font-weight: 500 700;
  font-style: normal;
  font-display: swap;
}

:root {
  --ink: #0a0a09;
  --ink-2: #11110f;
  --ink-3: #181815;
  --paper: #f1efe8;
  --paper-2: #e8e5dc;
  --white: #fbfaf5;
  --graphite: #66665f;
  --mist: #a8a69e;
  --record: #9ab99a;
  --record-ink: #435a38;
  --line: rgba(241, 239, 232, 0.14);
  --line-soft: rgba(241, 239, 232, 0.075);
  --ease-out: cubic-bezier(0.23, 1, 0.32, 1);
  --wrap: 1180px;
  --gutter: clamp(1.25rem, 4vw, 3rem);
  --nav-h: 4.25rem;
}

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

* {
  margin: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--nav-h) + 1rem);
  -webkit-text-size-adjust: 100%;
}

body {
  min-width: 320px;
  overflow-x: hidden;
  background: var(--ink);
  color: var(--paper);
  font-family: "Instrument Sans", "Helvetica Neue", Helvetica, Arial, system-ui, sans-serif;
  font-size: 1rem;
  line-height: 1.55;
  letter-spacing: -0.012em;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body.menu-open {
  overflow: hidden;
}

img,
svg {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  border: 0;
  background: none;
  color: inherit;
  font: inherit;
  cursor: pointer;
}

::selection {
  background: #33332e;
  color: var(--paper);
}

:focus-visible {
  outline: 2px solid currentColor;
  outline-offset: 4px;
}

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

.sr-only {
  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: fixed;
  z-index: 1000;
  top: 0.75rem;
  left: 0.75rem;
  padding: 0.7rem 1rem;
  background: var(--paper);
  color: var(--ink);
  font-weight: 700;
  transform: translateY(-150%);
  transition: transform 180ms var(--ease-out);
}

.skip-link:focus {
  transform: translateY(0);
}

.page-progress {
  position: fixed;
  z-index: 999;
  inset: 0 0 auto;
  height: 2px;
  background: rgba(255, 255, 255, 0.05);
  pointer-events: none;
}

.page-progress span {
  display: block;
  width: 100%;
  height: 100%;
  background: var(--record);
  transform: scaleX(0);
  transform-origin: left;
  will-change: transform;
}

.mono,
.eyebrow,
.nav-links a,
.hero__meta,
.section-rule,
.feature__label,
.case__id,
.code-tab,
.footer__meta,
.console__tag,
.console__row span:first-child {
  font-family: "IBM Plex Mono", "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  color: var(--mist);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.eyebrow::before {
  content: "";
  width: 1.25rem;
  height: 1px;
  background: var(--record);
}

.section-rule {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding-block: 1rem;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  color: var(--mist);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  min-height: 2.85rem;
  padding: 0.7rem 1.2rem;
  border: 1px solid transparent;
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  transition:
    background 160ms var(--ease-out),
    color 160ms var(--ease-out),
    border-color 160ms var(--ease-out),
    transform 140ms var(--ease-out);
}

.button > span {
  transition: transform 180ms var(--ease-out);
}

.button:hover > span {
  transform: translateX(2px);
}

.button--light {
  background: var(--paper);
  color: var(--ink);
}

.button--light:hover {
  background: var(--white);
}

.button--outline {
  border-color: var(--line);
  color: var(--paper);
  background: transparent;
}

.button--outline:hover {
  border-color: rgba(241, 239, 232, 0.35);
  background: rgba(241, 239, 232, 0.04);
}

/* Nav */
.site-nav {
  position: fixed;
  inset: 0 0 auto;
  z-index: 100;
  height: var(--nav-h);
  border-bottom: 1px solid transparent;
  background: rgba(10, 10, 9, 0.72);
  backdrop-filter: blur(16px);
  transition: border-color 200ms var(--ease-out), background 200ms var(--ease-out);
}

.site-nav.is-scrolled {
  border-bottom-color: var(--line-soft);
  background: rgba(10, 10, 9, 0.92);
}

.site-nav__inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.site-nav__brand {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  min-width: 0;
}

.site-nav__brand img {
  width: auto;
  height: 1.55rem;
}

.site-nav__product {
  padding-left: 0.85rem;
  border-left: 1px solid var(--line);
  color: var(--paper);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  list-style: none;
}

.nav-links a {
  color: var(--mist);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: color 160ms var(--ease-out);
}

.nav-links a:hover {
  color: var(--paper);
}

.site-nav__actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.nav-toggle {
  display: none;
  width: 2.5rem;
  height: 2.5rem;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
}

.nav-toggle span {
  display: block;
  width: 1.15rem;
  height: 1.5px;
  background: var(--paper);
  transition: transform 180ms var(--ease-out), opacity 180ms var(--ease-out);
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(3.25px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-3.25px) rotate(-45deg);
}

.mobile-nav {
  position: fixed;
  inset: var(--nav-h) 0 0;
  z-index: 90;
  display: grid;
  align-content: start;
  gap: 0.25rem;
  padding: 1.5rem var(--gutter) 2rem;
  background: rgba(10, 10, 9, 0.98);
  border-bottom: 1px solid var(--line);
  transform: translateY(-0.5rem);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition:
    opacity 200ms var(--ease-out),
    transform 200ms var(--ease-out),
    visibility 200ms;
}

.mobile-nav.is-open {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateY(0);
}

.mobile-nav a {
  padding: 0.9rem 0;
  border-bottom: 1px solid var(--line-soft);
  font-size: 1.15rem;
  font-weight: 600;
}

/* Hero */
.hero {
  position: relative;
  min-height: calc(100svh - var(--nav-h));
  display: grid;
  align-items: center;
  padding: calc(var(--nav-h) + 2rem) 0 3.5rem;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 70% 55% at 80% 20%, rgba(154, 185, 154, 0.08), transparent 60%),
    linear-gradient(180deg, transparent 40%, var(--ink) 100%),
    repeating-linear-gradient(
      90deg,
      transparent 0,
      transparent 119px,
      rgba(241, 239, 232, 0.035) 119px,
      rgba(241, 239, 232, 0.035) 120px
    );
  pointer-events: none;
}

.hero__inner {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  gap: clamp(2rem, 5vw, 4rem);
  align-items: end;
}

.hero__brand {
  margin: 0 0 1.25rem;
  color: var(--paper);
  font-size: clamp(3.4rem, 9vw, 6.5rem);
  font-weight: 600;
  line-height: 0.92;
  letter-spacing: -0.055em;
}

.hero h1 {
  max-width: 14ch;
  margin-bottom: 1.1rem;
  font-size: clamp(1.65rem, 3.4vw, 2.4rem);
  font-weight: 500;
  line-height: 1.15;
  letter-spacing: -0.035em;
}

.hero h1 span {
  color: var(--mist);
}

.hero__lead {
  max-width: 38rem;
  margin-bottom: 1.75rem;
  color: var(--mist);
  font-size: clamp(1rem, 1.5vw, 1.125rem);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 2rem;
}

.hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 1.5rem;
  color: var(--graphite);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.console {
  border: 1px solid var(--line);
  background:
    linear-gradient(180deg, rgba(241, 239, 232, 0.03), transparent 40%),
    var(--ink-2);
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.35);
}

.console__bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--line-soft);
  color: var(--mist);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.console__tag {
  color: var(--record);
}

.console__body {
  display: grid;
  gap: 0;
  padding: 0.35rem 0;
}

.console__row {
  display: grid;
  grid-template-columns: 7.5rem 1fr;
  gap: 1rem;
  padding: 0.7rem 1rem;
  border-bottom: 1px solid var(--line-soft);
  font-size: 0.86rem;
}

.console__row:last-child {
  border-bottom: 0;
}

.console__row span:first-child {
  color: var(--graphite);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.console__row strong {
  font-weight: 500;
  color: var(--paper);
}

.console__row em {
  font-style: normal;
  color: var(--record);
}

/* Sections */
.section {
  padding: clamp(4rem, 9vw, 7rem) 0;
}

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

.section--paper .section-rule {
  border-color: rgba(10, 10, 9, 0.14);
  color: var(--graphite);
}

.section--paper .eyebrow {
  color: var(--graphite);
}

.section--paper .eyebrow::before {
  background: var(--record-ink);
}

.section__head {
  max-width: 40rem;
  margin: 2rem 0 2.75rem;
}

.section__head h2 {
  margin: 0.65rem 0 0.75rem;
  font-size: clamp(1.8rem, 4vw, 2.75rem);
  font-weight: 550;
  line-height: 1.08;
  letter-spacing: -0.04em;
}

.section__head p {
  color: var(--graphite);
  font-size: 1.05rem;
}

.section--ink .section__head p {
  color: var(--mist);
}

.features {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line);
}

.feature {
  display: grid;
  grid-template-columns: 10rem 1fr;
  gap: 1.5rem;
  padding: 1.75rem 0;
  border-bottom: 1px solid var(--line);
}

.feature__label {
  color: var(--record);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.feature h3 {
  margin-bottom: 0.45rem;
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: -0.03em;
}

.feature p {
  max-width: 46rem;
  color: var(--mist);
}

.cases {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  background: rgba(10, 10, 9, 0.12);
  border: 1px solid rgba(10, 10, 9, 0.12);
}

.case {
  display: grid;
  gap: 0.65rem;
  padding: 1.4rem 1.25rem;
  background: var(--white);
  min-height: 11rem;
}

.case__id {
  color: var(--graphite);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
}

.case h3 {
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: -0.025em;
}

.case p {
  color: var(--graphite);
  font-size: 0.95rem;
}

.code-panel {
  border: 1px solid var(--line);
  background: var(--ink-2);
  overflow: hidden;
}

.code-tab {
  padding: 0.8rem 1rem;
  border-bottom: 1px solid var(--line-soft);
  color: var(--mist);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.code-content {
  padding: 1.25rem 1.15rem 1.4rem;
  overflow-x: auto;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.82rem;
  line-height: 1.7;
  color: var(--paper);
}

.code-line {
  white-space: nowrap;
}

.code-comment {
  color: var(--graphite);
}

.code-cmd {
  color: var(--record);
}

.code-arg {
  color: var(--paper);
}

.code-string {
  color: #d2c7a8;
}

.cta {
  text-align: center;
}

.cta__box {
  padding: clamp(2.5rem, 6vw, 4rem) 1.5rem;
  border: 1px solid var(--line);
  background:
    radial-gradient(ellipse 60% 80% at 50% 0%, rgba(154, 185, 154, 0.1), transparent 55%),
    var(--ink-2);
}

.cta__box h2 {
  margin: 0.75rem 0 0.65rem;
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 550;
  letter-spacing: -0.04em;
}

.cta__box p {
  margin: 0 auto 1.5rem;
  max-width: 28rem;
  color: var(--mist);
}

/* Footer */
.footer {
  border-top: 1px solid var(--line);
  padding: 3rem 0 1.5rem;
}

.footer__top {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 2rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--line-soft);
}

.footer__brand img {
  width: auto;
  height: 1.75rem;
  margin-bottom: 1rem;
}

.footer__brand p {
  max-width: 28rem;
  color: var(--mist);
  font-size: 0.95rem;
}

.footer__links {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.5rem;
}

.footer__links span {
  display: block;
  margin-bottom: 0.75rem;
  color: var(--graphite);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.footer__links a {
  display: block;
  margin-bottom: 0.45rem;
  color: var(--paper);
  font-weight: 500;
}

.footer__links a:hover {
  color: var(--record);
}

.footer__bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.75rem 1.5rem;
  padding-top: 1.25rem;
  color: var(--graphite);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
}

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

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

/* Motion */
[data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition:
    opacity 700ms var(--ease-out),
    transform 700ms var(--ease-out);
}

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

.console__row {
  opacity: 0;
  transform: translateY(8px);
  transition:
    opacity 500ms var(--ease-out),
    transform 500ms var(--ease-out);
}

.console.is-in .console__row {
  opacity: 1;
  transform: none;
}

.console.is-in .console__row:nth-child(1) { transition-delay: 80ms; }
.console.is-in .console__row:nth-child(2) { transition-delay: 140ms; }
.console.is-in .console__row:nth-child(3) { transition-delay: 200ms; }
.console.is-in .console__row:nth-child(4) { transition-delay: 260ms; }
.console.is-in .console__row:nth-child(5) { transition-delay: 320ms; }

.code-line {
  opacity: 0;
  transform: translateX(-10px);
  transition:
    opacity 420ms var(--ease-out),
    transform 420ms var(--ease-out);
}

.code-panel.is-in .code-line {
  opacity: 1;
  transform: none;
}

.code-panel.is-in .code-line:nth-child(1) { transition-delay: 40ms; }
.code-panel.is-in .code-line:nth-child(2) { transition-delay: 70ms; }
.code-panel.is-in .code-line:nth-child(3) { transition-delay: 100ms; }
.code-panel.is-in .code-line:nth-child(4) { transition-delay: 130ms; }
.code-panel.is-in .code-line:nth-child(5) { transition-delay: 160ms; }
.code-panel.is-in .code-line:nth-child(6) { transition-delay: 190ms; }
.code-panel.is-in .code-line:nth-child(7) { transition-delay: 220ms; }
.code-panel.is-in .code-line:nth-child(8) { transition-delay: 250ms; }
.code-panel.is-in .code-line:nth-child(9) { transition-delay: 280ms; }
.code-panel.is-in .code-line:nth-child(10) { transition-delay: 310ms; }
.code-panel.is-in .code-line:nth-child(11) { transition-delay: 340ms; }
.code-panel.is-in .code-line:nth-child(12) { transition-delay: 370ms; }
.code-panel.is-in .code-line:nth-child(13) { transition-delay: 400ms; }
.code-panel.is-in .code-line:nth-child(14) { transition-delay: 430ms; }

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

  [data-reveal],
  .console__row,
  .code-line {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

@media (max-width: 900px) {
  .nav-links,
  .site-nav__actions .button {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  .hero {
    align-items: start;
    min-height: auto;
    padding-top: calc(var(--nav-h) + 1.5rem);
    padding-bottom: 2.5rem;
  }

  .hero__inner {
    grid-template-columns: 1fr;
  }

  .feature {
    grid-template-columns: 1fr;
    gap: 0.5rem;
  }

  .cases {
    grid-template-columns: 1fr;
  }

  .footer__top,
  .footer__links {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 540px) {
  .site-nav__product {
    font-size: 0.85rem;
  }

  .hero__brand {
    font-size: clamp(2.8rem, 16vw, 4rem);
  }

  .console__row {
    grid-template-columns: 1fr;
    gap: 0.2rem;
  }
}