:root {
  color-scheme: dark;
  --bg: #040914;
  --bg-deep: #02060e;
  --surface: #08111f;
  --surface-strong: #0b1626;
  --text: #f6f8fb;
  --muted: #a8b0bd;
  --muted-strong: #c8ced8;
  --border: #233247;
  --border-soft: rgba(120, 147, 178, 0.22);
  --accent: #3ca8ff;
  --accent-strong: #157fe3;
  --accent-soft: rgba(60, 168, 255, 0.12);
  --shadow: 0 28px 90px rgba(0, 0, 0, 0.35);
  --radius: 20px;
  --shell: min(1400px, calc(100vw - 96px));
  --font: Inter, "Segoe UI Variable", "Segoe UI", system-ui, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 32px;
  scrollbar-color: #234260 var(--bg);
}

body {
  margin: 0;
  overflow-x: hidden;
  background:
    radial-gradient(circle at 77% 10%, rgba(20, 110, 184, 0.12), transparent 30rem),
    var(--bg);
  color: var(--text);
  font-family: var(--font);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

::selection {
  background: rgba(60, 168, 255, 0.34);
  color: var(--text);
}

body::before {
  position: fixed;
  z-index: -1;
  inset: 0;
  background-image: linear-gradient(rgba(255, 255, 255, 0.015) 1px, transparent 1px);
  background-size: 100% 6px;
  content: "";
  pointer-events: none;
}

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

button,
a {
  -webkit-tap-highlight-color: transparent;
}

button {
  cursor: pointer;
  font: inherit;
}

:focus-visible {
  outline: 3px solid rgba(60, 168, 255, 0.72);
  outline-offset: 4px;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 12px;
  left: 12px;
  padding: 12px 16px;
  transform: translateY(-150%);
  border-radius: 8px;
  background: var(--text);
  color: var(--bg);
}

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

.section-shell,
.site-header,
.site-footer {
  width: var(--shell);
  margin-inline: auto;
}

.site-header {
  position: absolute;
  z-index: 20;
  top: 0;
  right: 0;
  left: 0;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  min-height: 104px;
}

.brand {
  display: inline-flex;
  align-items: center;
  justify-self: start;
  gap: 12px;
  font-size: 1.32rem;
  font-weight: 720;
  letter-spacing: 0.25em;
}

.brand-mark {
  width: 25px;
  fill: var(--text);
}

.brand-mark-cut {
  fill: var(--bg);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 48px;
  color: var(--muted-strong);
  font-size: 0.98rem;
}

.site-nav a,
.site-footer nav a {
  transition:
    color 180ms ease,
    transform 180ms ease;
}

.site-nav a:hover,
.site-footer nav a:hover,
.site-nav a[aria-current="location"] {
  color: var(--text);
  transform: translateY(-1px);
}

.site-nav a[aria-current="location"] {
  text-decoration: underline;
  text-decoration-color: var(--accent);
  text-decoration-thickness: 2px;
  text-underline-offset: 8px;
}

.header-action {
  justify-self: end;
}

.menu-toggle {
  display: none;
  width: 46px;
  height: 46px;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: rgba(4, 9, 20, 0.85);
  color: var(--text);
}

.menu-toggle span {
  display: block;
  width: 20px;
  height: 1px;
  margin: 6px auto;
  background: currentColor;
  transition:
    transform 180ms ease,
    opacity 180ms ease;
}

.menu-toggle[aria-expanded="true"] span:first-child {
  transform: translateY(3.5px) rotate(45deg);
}

.menu-toggle[aria-expanded="true"] span:last-child {
  transform: translateY(-3.5px) rotate(-45deg);
}

.hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(480px, 0.98fr);
  align-items: center;
  overflow: hidden;
  min-height: 100svh;
  padding-block: 150px 100px;
}

.hero-copy {
  position: relative;
  z-index: 2;
  max-width: 760px;
}

.hero h1 {
  max-width: 760px;
  margin: 0;
  font-size: clamp(3.8rem, 5.2vw, 6.05rem);
  font-weight: 620;
  letter-spacing: -0.056em;
  line-height: 0.99;
}

.hero-copy > p {
  max-width: 570px;
  margin: 36px 0 0;
  color: var(--muted-strong);
  font-size: clamp(1.15rem, 1.55vw, 1.5rem);
  line-height: 1.58;
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 38px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 28px;
  min-height: 56px;
  padding: 0 24px;
  border: 1px solid transparent;
  border-radius: 11px;
  font-size: 0.98rem;
  font-weight: 570;
  letter-spacing: -0.01em;
  transition:
    transform 180ms ease,
    border-color 180ms ease,
    background-color 180ms ease,
    box-shadow 180ms ease;
}

.button svg {
  width: 20px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.5;
}

.button:hover {
  transform: translateY(-2px);
}

.button-primary {
  border-color: #54b7ff;
  background: linear-gradient(135deg, #2d9df5, #126cd1);
  box-shadow: 0 15px 48px rgba(22, 123, 218, 0.22);
}

.button-primary:hover {
  box-shadow: 0 18px 58px rgba(22, 123, 218, 0.32);
}

.button-secondary,
.button-quiet {
  border-color: var(--border);
  background: rgba(4, 9, 20, 0.54);
}

.button-secondary:hover,
.button-quiet:hover {
  border-color: #456485;
  background: var(--surface);
}

.button-quiet {
  min-width: 120px;
  min-height: 48px;
}

.hero-visual {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 680px;
}

.robot-frame {
  position: relative;
  z-index: 3;
  width: 192px;
  aspect-ratio: 192 / 208;
  background-image: url("assets/athomyc-robot.webp");
  background-repeat: no-repeat;
  background-size: 800% 900%;
  filter: drop-shadow(0 25px 34px rgba(0, 0, 0, 0.42));
  image-rendering: auto;
}

.robot-wave {
  transform: scale(0.72);
  background-image: url("assets/athomyc-wave.webp");
  background-position: center;
  background-size: contain;
}

.robot-review {
  transform: scale(1.65);
  background-image: url("assets/athomyc-review.webp");
  background-position: center;
  background-size: contain;
}

.robot-hero {
  position: relative;
  z-index: 3;
  display: block;
  width: min(84%, 560px);
  height: auto;
  filter: drop-shadow(0 34px 44px rgba(0, 0, 0, 0.48));
  animation: robot-float 5s ease-in-out infinite;
}

@keyframes robot-float {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}

.orbit {
  position: absolute;
  border: 1px solid rgba(55, 152, 230, 0.22);
  border-radius: 50%;
  transform: rotate(-9deg);
}

.orbit::before,
.orbit::after {
  position: absolute;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 20px var(--accent);
  content: "";
}

.orbit-one {
  width: 640px;
  height: 310px;
}

.orbit-one::before {
  top: 28px;
  left: 140px;
}

.orbit-one::after {
  right: 82px;
  bottom: 40px;
}

.orbit-two {
  width: 500px;
  height: 510px;
  transform: rotate(44deg);
}

.orbit-two::before {
  right: 92px;
  bottom: 21px;
}

.orbit-two::after {
  top: 62px;
  left: 50px;
}

.device-node {
  position: absolute;
  z-index: 2;
  color: #456582;
}

.device-node svg {
  width: 100%;
  fill: rgba(9, 22, 38, 0.74);
  stroke: currentColor;
  stroke-linejoin: round;
  stroke-width: 1.4;
}

.node-laptop {
  top: 132px;
  right: 16px;
  width: 112px;
}

.node-phone {
  right: 10px;
  bottom: 118px;
  width: 50px;
}

.node-server {
  top: 134px;
  left: 6px;
  width: 62px;
}

.ambient-line {
  position: absolute;
  z-index: -1;
  width: 60%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(55, 152, 230, 0.23), transparent);
}

.ambient-line-one {
  right: 0;
  bottom: 15%;
  transform: rotate(-8deg);
}

.scroll-cue {
  position: absolute;
  bottom: 34px;
  left: 0;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--muted);
  font-size: 0.77rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.scroll-cue svg {
  width: 18px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.5;
}

.vision {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: 80px;
  padding-block: 130px;
  border-top: 1px solid var(--border-soft);
}

.section-number {
  margin: 0 0 28px;
  color: var(--accent);
  font-size: 0.78rem;
  letter-spacing: 0.22em;
}

.vision h2,
.section-intro h2,
.security h2,
.project h2 {
  margin: 0;
  font-size: clamp(3rem, 4.6vw, 5rem);
  font-weight: 610;
  letter-spacing: -0.05em;
  line-height: 1.02;
}

.vision-layout {
  align-self: end;
}

.vision-lead {
  max-width: 650px;
  margin: 0 0 62px;
  color: var(--muted-strong);
  font-size: clamp(1.45rem, 2vw, 2rem);
  letter-spacing: -0.025em;
  line-height: 1.45;
}

.principle-line {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  padding-top: 22px;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.84rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.system {
  padding-block: 148px 160px;
  border-top: 1px solid var(--border-soft);
}

.section-intro {
  max-width: 960px;
  margin-inline: auto;
  text-align: center;
}

.section-intro > p:last-child {
  max-width: 620px;
  margin: 26px auto 0;
  color: var(--muted);
  font-size: 1.16rem;
  line-height: 1.65;
}

.system-map {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 0.68fr 1fr;
  align-items: end;
  gap: 52px;
  margin-top: 94px;
}

.system-path {
  position: absolute;
  top: -45px;
  right: 16%;
  left: 16%;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
}

.system-path span {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent));
}

.system-path span:last-child {
  background: linear-gradient(90deg, var(--accent), transparent);
}

.system-path svg {
  width: 26px;
  margin-inline: 16px;
  fill: var(--accent);
}

.agent-role {
  display: grid;
  gap: 24px;
}

.role-visual {
  display: grid;
  place-items: center;
  min-height: 290px;
  color: #527391;
}

.role-visual svg {
  width: min(100%, 340px);
  fill: rgba(9, 18, 31, 0.84);
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.35;
  filter: drop-shadow(0 28px 40px rgba(0, 0, 0, 0.4));
}

.role-server svg {
  width: min(100%, 280px);
}

.role-copy {
  max-width: 430px;
}

.role-copy h3 {
  margin: 0;
  font-size: clamp(1.75rem, 2.6vw, 2.55rem);
  font-weight: 430;
  letter-spacing: -0.035em;
}

.role-copy h3 span {
  color: var(--accent);
}

.role-copy p {
  max-width: 390px;
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.65;
}

.role-physical .role-copy {
  margin-left: auto;
}

.human-authority {
  position: relative;
  display: grid;
  justify-items: center;
  align-self: center;
  min-height: 300px;
}

.authority-icon {
  display: grid;
  place-items: center;
  width: 64px;
  height: 64px;
  border: 1px solid var(--accent);
  border-radius: 50%;
  background: var(--bg);
  box-shadow: 0 0 34px rgba(60, 168, 255, 0.2);
}

.authority-icon svg {
  width: 36px;
  fill: none;
  stroke: var(--text);
  stroke-width: 1.35;
}

.human-authority::before {
  position: absolute;
  z-index: -1;
  top: 32px;
  width: 1px;
  height: 168px;
  background: linear-gradient(var(--accent), transparent);
  content: "";
}

.human-authority .robot-frame {
  margin-top: 24px;
}

.human-authority p {
  max-width: 330px;
  margin: 18px 0 0;
  color: var(--muted-strong);
  text-align: center;
  line-height: 1.55;
}

.human-authority strong {
  color: var(--accent);
  font-weight: 580;
}

.security {
  padding-block: 146px;
  border-top: 1px solid var(--border-soft);
}

.security-top {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  align-items: center;
  min-height: 560px;
}

.security-copy {
  max-width: 830px;
}

.security h2 span,
.project h2 span {
  color: var(--accent);
}

.security-copy > p:last-child {
  max-width: 700px;
  margin: 32px 0 0;
  color: var(--muted-strong);
  font-size: clamp(1.12rem, 1.55vw, 1.4rem);
  line-height: 1.62;
}

.security-robot {
  display: grid;
  place-items: center;
  min-height: 430px;
}

.security-principles {
  margin: 20px 0 0;
  padding: 0;
  border-top: 1px solid var(--border);
  list-style: none;
}

.security-principles li {
  display: grid;
  grid-template-columns: 72px 0.75fr 1fr;
  align-items: center;
  gap: 30px;
  min-height: 118px;
  border-bottom: 1px solid var(--border);
}

.principle-index {
  color: var(--accent);
  font-size: 0.92rem;
  letter-spacing: 0.12em;
}

.security-principles h3 {
  margin: 0;
  font-size: 1.18rem;
  font-weight: 610;
}

.security-principles p {
  margin: 0;
  color: var(--muted);
  font-size: 1.03rem;
  line-height: 1.55;
}

.project {
  padding-block: 20px 118px;
}

.project-panel {
  display: grid;
  grid-template-columns: 1.1fr 0.85fr auto;
  align-items: center;
  gap: 64px;
  min-height: 260px;
  padding: 55px 62px;
  border: 1px solid var(--border);
  background:
    linear-gradient(110deg, rgba(7, 16, 30, 0.84), rgba(4, 9, 20, 0.92)),
    var(--surface);
  clip-path: polygon(16px 0, 100% 0, 100% calc(100% - 16px), calc(100% - 16px) 100%, 0 100%, 0 16px);
}

.project h2 {
  font-size: clamp(2.5rem, 4vw, 4.4rem);
}

.project-panel p {
  max-width: 380px;
  margin: 0;
  color: var(--muted-strong);
  font-size: 1.12rem;
  line-height: 1.6;
}

.project-panel .button {
  white-space: nowrap;
}

.site-footer {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  min-height: 150px;
  border-top: 1px solid var(--border-soft);
}

.site-footer nav {
  display: flex;
  gap: 42px;
  color: var(--muted);
  font-size: 0.93rem;
}

.site-footer > p {
  justify-self: end;
  margin: 0;
  color: var(--accent);
  font-size: 0.94rem;
  letter-spacing: 0.06em;
}

#visao,
#sistema,
#seguranca,
#projeto {
  scroll-margin-top: 32px;
}

.not-found {
  display: grid;
  place-items: center;
  min-height: 100svh;
  padding-block: 120px;
  text-align: center;
}

.not-found-card {
  position: relative;
  width: min(680px, 100%);
  padding: 64px;
  overflow: hidden;
  border: 1px solid var(--border);
  background:
    radial-gradient(circle at 80% 10%, rgba(60, 168, 255, 0.15), transparent 18rem),
    rgba(8, 17, 31, 0.72);
  box-shadow: var(--shadow);
  clip-path: polygon(16px 0, 100% 0, 100% calc(100% - 16px), calc(100% - 16px) 100%, 0 100%, 0 16px);
}

.not-found-code {
  margin: 0 0 18px;
  color: var(--accent);
  font-size: 0.82rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
}

.not-found h1 {
  margin: 0;
  font-size: clamp(3.2rem, 8vw, 6.2rem);
  font-weight: 610;
  letter-spacing: -0.06em;
  line-height: 0.98;
}

.not-found-copy {
  max-width: 520px;
  margin: 28px auto 36px;
  color: var(--muted-strong);
  font-size: 1.15rem;
  line-height: 1.65;
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition:
    opacity 650ms ease,
    transform 650ms ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 1120px) {
  :root {
    --shell: min(100% - 48px, 980px);
  }

  .hero {
    grid-template-columns: 1fr 0.78fr;
  }

  .hero h1 {
    font-size: clamp(3.25rem, 6.5vw, 5rem);
  }

  .hero-visual {
    min-height: 560px;
    transform: scale(0.84);
  }

  .system-map {
    grid-template-columns: 1fr 0.5fr 1fr;
    gap: 28px;
  }

  .project-panel {
    grid-template-columns: 1fr 0.8fr;
  }

  .project-panel .button {
    grid-column: 1 / -1;
    justify-self: start;
  }
}

@media (max-width: 820px) {
  :root {
    --shell: min(100% - 36px, 700px);
  }

  .site-header {
    grid-template-columns: 1fr auto;
    min-height: 82px;
  }

  .menu-toggle {
    display: block;
    justify-self: end;
  }

  .site-nav {
    position: absolute;
    top: 70px;
    right: 0;
    left: 0;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 12px;
    border: 1px solid var(--border);
    border-radius: 14px;
    background: rgba(4, 9, 20, 0.96);
    box-shadow: var(--shadow);
    opacity: 0;
    pointer-events: none;
    transform: translateY(-8px);
    visibility: hidden;
    backdrop-filter: blur(16px);
    transition:
      opacity 180ms ease,
      transform 180ms ease,
      visibility 180ms ease;
  }

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

  .site-nav a {
    padding: 16px;
  }

  body.menu-open {
    overflow: hidden;
  }

  .header-action {
    display: none;
  }

  .hero {
    grid-template-columns: 1fr;
    padding-top: 124px;
  }

  .hero-copy {
    max-width: 680px;
  }

  .hero h1 {
    font-size: clamp(3rem, 11.5vw, 5.4rem);
  }

  .hero-visual {
    min-height: 570px;
    transform: scale(0.92);
  }

  .scroll-cue {
    display: none;
  }

  .vision {
    grid-template-columns: 1fr;
    gap: 54px;
    padding-block: 100px;
  }

  .system {
    padding-block: 108px;
  }

  .system-map {
    grid-template-columns: 1fr;
    margin-top: 70px;
  }

  .system-path {
    display: none;
  }

  .agent-role {
    grid-template-columns: 0.68fr 1fr;
    align-items: center;
  }

  .role-visual {
    min-height: 220px;
  }

  .human-authority {
    order: 3;
    min-height: 280px;
  }

  .role-physical .role-copy {
    margin-left: 0;
  }

  .security {
    padding-block: 108px;
  }

  .security-top {
    grid-template-columns: 1fr;
  }

  .security-robot {
    min-height: 400px;
  }

  .security-principles li {
    grid-template-columns: 54px 1fr;
    gap: 18px;
    padding-block: 24px;
  }

  .security-principles p {
    grid-column: 2;
  }

  .project-panel {
    grid-template-columns: 1fr;
    gap: 30px;
    padding: 42px;
  }

  .project-panel .button {
    grid-column: auto;
  }

  .site-footer {
    grid-template-columns: 1fr auto;
    gap: 30px;
    padding-block: 42px;
  }

  .site-footer nav {
    display: none;
  }
}

@media (max-width: 560px) {
  :root {
    --shell: calc(100% - 28px);
  }

  .brand {
    gap: 9px;
    font-size: 1.03rem;
    letter-spacing: 0.2em;
  }

  .brand-mark {
    width: 22px;
  }

  .hero {
    min-height: auto;
    padding-block: 116px 70px;
  }

  .hero h1 {
    font-size: clamp(2.75rem, 13vw, 4.1rem);
    line-height: 1.01;
  }

  .hero-copy > p {
    margin-top: 26px;
    font-size: 1.06rem;
  }

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

  .button-row .button {
    width: 100%;
  }

  .hero-visual {
    min-height: 480px;
    margin: -18px -40px 0;
    transform: scale(0.72);
  }

  .vision h2,
  .section-intro h2,
  .security h2 {
    font-size: clamp(2.65rem, 13vw, 4rem);
  }

  .vision {
    padding-block: 84px;
  }

  .vision-lead {
    font-size: 1.25rem;
  }

  .principle-line {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .section-intro {
    text-align: left;
  }

  .section-intro > p:last-child {
    margin-inline: 0;
  }

  .agent-role {
    grid-template-columns: 1fr;
  }

  .role-visual {
    min-height: 190px;
  }

  .role-copy {
    margin-inline: 0;
  }

  .security-robot {
    min-height: 320px;
    transform: scale(0.8);
  }

  .security-principles li {
    grid-template-columns: 44px 1fr;
  }

  .project {
    padding-bottom: 76px;
  }

  .project-panel {
    padding: 34px 26px;
  }

  .project-panel .button {
    width: 100%;
    gap: 14px;
  }

  .site-footer {
    min-height: 120px;
  }

  .not-found-card {
    padding: 48px 24px;
  }
}

@media (scripting: none) {
  .reveal {
    opacity: 1;
    transform: none;
  }
}

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

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}