*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
}
body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-b);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
img {
  display: block;
  max-width: 100%;
}
a {
  text-decoration: none;
}
ul {
  list-style: none;
}
button {
  background: none;
  border: none;
  cursor: pointer;
  font-family: inherit;
}

/* ── Variables ── */
:root {
  --bg: #000c12;
  --bg-2: #060f18;
  --bg-card: rgba(255, 255, 255, 0.04);
  --border: rgba(255, 255, 255, 0.08);
  --grad: linear-gradient(135deg, #00b7ff, #00e8bb);
  --grad-r: linear-gradient(135deg, #00e8bb, #00b7ff);
  --teal: #00b7ff;
  --mint: #00e8bb;
  --fg: #f0f4f8;
  --fg-muted: #8899aa;
  --r: 1rem;
  --font-h: "Manrope", sans-serif;
  --font-b: "Plus Jakarta Sans", sans-serif;
}

/* ── Typography ── */
h1,
h2,
h3,
h4 {
  font-family: var(--font-h);
  line-height: 1.2;
  color: var(--fg);
}
p {
  color: var(--fg-muted);
  line-height: 1.75;
}
strong {
  color: var(--fg);
  font-weight: 600;
}

/* ── Utilities ── */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}
.text-gradient {
  background: var(--grad);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.section-eyebrow {
  display: inline-block;
  font-family: var(--font-h);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  background: var(--grad);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 1rem;
}
.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 4rem;
}
.section-header h2 {
  font-size: clamp(1.75rem, 3.5vw, 2.75rem);
  font-weight: 700;
  margin-bottom: 1rem;
}
.section-header p {
  color: var(--fg-muted);
}
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition:
    opacity 0.6s ease,
    transform 0.6s ease;
}
.reveal.visible {
  opacity: 1;
  transform: none;
}

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.875rem 2rem;
  border-radius: 100px;
  font-family: var(--font-h);
  font-size: 0.9375rem;
  font-weight: 600;
  transition: all 0.2s;
  white-space: nowrap;
}
.btn-primary {
  background: var(--grad);
  color: #000c12;
}
.btn-primary:hover {
  opacity: 0.88;
  transform: translateY(-1px);
}
.btn-outline {
  border: 1px solid rgba(255, 255, 255, 0.18);
  color: var(--fg);
}
.btn-outline:hover {
  border-color: rgba(0, 183, 255, 0.5);
  color: #00b7ff;
}

/* ═══════ HEADER ═══════ */
#occ-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 1.25rem 0;
  transition: all 0.3s;
}
#occ-header.scrolled {
  background: rgba(0, 12, 18, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  padding: 0.875rem 0;
}
.header-inner {
  display: flex;
  align-items: center;
  gap: 2rem;
}
.occ-logo {
  display: flex;
  flex-direction: column;
  line-height: 1;
  text-decoration: none;
}
.occ-logo-mark {
  font-family: var(--font-h);
  font-size: 1.25rem;
  font-weight: 800;
  background: var(--grad);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.occ-logo-sub {
  font-size: 0.625rem;
  font-weight: 500;
  color: var(--fg-muted);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
.desktop-nav {
  display: flex;
  align-items: center;
  gap: 1.75rem;
  margin-left: auto;
}
.desktop-nav a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--fg-muted);
  transition: color 0.2s;
}
.desktop-nav a:hover,
.desktop-nav a.nav-active {
  color: var(--fg);
}
.header-cta {
  margin-left: 1.5rem;
  padding: 0.625rem 1.375rem;
  font-size: 0.875rem;
}
.mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 0.5rem;
  margin-left: auto;
}
.mobile-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--fg);
  border-radius: 2px;
  transition: all 0.3s;
}
.mobile-toggle.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.mobile-toggle.active span:nth-child(2) {
  opacity: 0;
}
.mobile-toggle.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}
.mobile-menu {
  display: none;
  position: fixed;
  inset: 0;
  background: var(--bg);
  z-index: 99;
  padding: 6rem 2rem 2rem;
  overflow-y: auto;
}
.mobile-menu.active {
  display: block;
}
.mobile-menu nav {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}
.mobile-menu nav a {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--fg);
}

/* ═══════ HERO ═══════ */
.hero {
  padding: 10rem 0 7rem;
  position: relative;
  overflow: hidden;
}
.hero-glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  pointer-events: none;
}
.hero-glow--1 {
  width: 600px;
  height: 600px;
  background: rgba(0, 183, 255, 0.07);
  top: -100px;
  left: -100px;
}
.hero-glow--2 {
  width: 500px;
  height: 500px;
  background: rgba(0, 232, 187, 0.05);
  bottom: -100px;
  right: -100px;
}
.hero-inner {
  text-align: center;
  max-width: 820px;
  margin: 0 auto;
}
.hero-badge {
  display: inline-block;
  font-family: var(--font-h);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #00b7ff;
  border: 1px solid rgba(0, 183, 255, 0.25);
  border-radius: 100px;
  padding: 0.5rem 1.25rem;
  margin-bottom: 2rem;
}
.hero-inner h1 {
  font-size: clamp(2.25rem, 4.5vw, 3.875rem);
  font-weight: 600;
  margin-bottom: 1.5rem;
}
.hero-sub {
  font-size: 1.125rem;
  color: var(--fg-muted);
  max-width: 580px;
  margin: 0 auto 2.5rem;
}
.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  justify-content: center;
}

/* ═══════ DOBRA 2 — OVERVIEW ═══════ */
.overview {
  padding: 7rem 0;
  background: var(--bg-2);
}
.overview-grid {
  display: grid;
  grid-template-columns: 1fr 360px;
  gap: 4rem;
  align-items: start;
}
.overview-text h2 {
  font-size: clamp(1.5rem, 2.75vw, 2.25rem);
  font-weight: 700;
  margin-bottom: 1.5rem;
}
.overview-text p {
  margin-bottom: 1rem;
}
.overview-list {
  margin-top: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
}
.overview-list li {
  display: flex;
  align-items: center;
  gap: 0.875rem;
  color: var(--fg-muted);
  font-size: 0.9375rem;
}
.overview-list li::before {
  content: "";
  display: block;
  width: 0.375rem;
  height: 0.375rem;
  border-radius: 50%;
  background: var(--grad);
  flex-shrink: 0;
}
.overview-highlight {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--r);
  padding: 2.5rem 2rem;
  text-align: center;
  position: sticky;
  top: 7rem;
}
.highlight-icon {
  width: 3rem;
  height: 3rem;
  margin: 0 auto 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 183, 255, 0.1);
  border-radius: 0.75rem;
  color: #00b7ff;
}
.overview-highlight p {
  font-family: var(--font-h);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--fg);
  line-height: 1.5;
  margin-bottom: 0.875rem;
}
.overview-highlight p em {
  background: var(--grad);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-style: normal;
}
.highlight-sub {
  font-size: 0.9375rem;
  color: var(--fg-muted);
}
.highlight-sub strong {
  color: #00e8bb;
}

/* ═══════ DOBRA 3 — CAMADAS (TABS) ═══════ */
.layers {
  padding: 7rem 0;
}
.layers-container {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 3rem;
  align-items: start;
}
.layers-nav {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  position: sticky;
  top: 6rem;
}
.layer-tab {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.875rem 1.125rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 0.75rem;
  cursor: pointer;
  text-align: left;
  transition: all 0.2s;
  color: var(--fg-muted);
  width: 100%;
}
.layer-tab:hover {
  border-color: rgba(0, 183, 255, 0.2);
  color: var(--fg);
}
.layer-tab.active {
  background: rgba(0, 183, 255, 0.07);
  border-color: rgba(0, 183, 255, 0.3);
  color: var(--fg);
}
.lt-num {
  font-family: var(--font-h);
  font-size: 0.7rem;
  font-weight: 700;
  background: var(--grad);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  flex-shrink: 0;
  min-width: 1.75rem;
}
.lt-name {
  font-size: 0.875rem;
  font-weight: 500;
  line-height: 1.3;
}
.layers-panels {
  min-height: 500px;
}
.layer-panel {
  display: none;
  animation: panelIn 0.3s ease;
}
.layer-panel.active {
  display: block;
}
@keyframes panelIn {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}
.panel-eyebrow {
  font-family: var(--font-h);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  background: var(--grad);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 0.75rem;
}
.layer-panel h3 {
  font-size: clamp(1.375rem, 2.5vw, 1.875rem);
  font-weight: 700;
  margin-bottom: 1.5rem;
}
.layer-panel > p {
  color: var(--fg-muted);
  margin-bottom: 1rem;
}
.panel-list {
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
  margin: 1.5rem 0 2rem;
}
.panel-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.875rem;
  color: var(--fg-muted);
  font-size: 0.9375rem;
  line-height: 1.5;
}
.panel-list li::before {
  content: "→";
  color: #00b7ff;
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 0.05em;
}
.panel-result {
  padding: 1.25rem 1.5rem;
  background: rgba(0, 232, 187, 0.05);
  border: 1px solid rgba(0, 232, 187, 0.15);
  border-radius: 0.75rem;
}
.panel-result strong {
  display: block;
  font-family: var(--font-h);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #00e8bb;
  margin-bottom: 0.5rem;
}
.panel-result {
  color: var(--fg-muted);
  font-size: 0.9375rem;
  line-height: 1.65;
}

/* ═══════ DOBRA 4 — FLOW TIMELINE ═══════ */
.flow-section {
  padding: 7rem 0;
  background: var(--bg-2);
}
.flow-steps {
  max-width: 760px;
  margin: 0 auto;
}
.flow-step {
  display: grid;
  grid-template-columns: 4rem 1fr;
  gap: 2.5rem;
}
.flow-num-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
}
.flow-num {
  width: 3.25rem;
  height: 3.25rem;
  border-radius: 50%;
  background: var(--grad);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-h);
  font-size: 0.8rem;
  font-weight: 800;
  color: #000c12;
  flex-shrink: 0;
}
.flow-line {
  width: 1px;
  flex: 1;
  min-height: 2.5rem;
  background: linear-gradient(to bottom, rgba(0, 183, 255, 0.3), transparent);
  margin-top: 0.5rem;
}
.flow-step--last .flow-num-wrap {
  justify-content: flex-start;
}
.flow-content {
  padding-top: 0.625rem;
  padding-bottom: 2.5rem;
}
.flow-step--last .flow-content {
  padding-bottom: 0;
}
.flow-content h3 {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}
.flow-content p {
  color: var(--fg-muted);
  line-height: 1.75;
}

/* ═══════ DOBRA 5 — DAILY / JOURNEY ═══════ */
.daily {
  padding: 7rem 0;
}
.daily-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
}
.daily-text p {
  color: var(--fg-muted);
  margin-bottom: 1rem;
}
.daily-pivot {
  color: var(--fg);
  font-weight: 600;
  margin-top: 1.5rem;
}
.journey-flow {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--r);
  overflow: hidden;
}
.journey-step {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1.125rem 1.5rem;
  border-bottom: 1px solid var(--border);
}
.journey-step--last {
  border-bottom: none;
}
.js-dot {
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: var(--grad);
  flex-shrink: 0;
  margin-top: 0.45em;
}
.js-dot--final {
  background: var(--mint);
  box-shadow: 0 0 8px rgba(0, 232, 187, 0.5);
}
.journey-step span:last-child {
  color: var(--fg-muted);
  font-size: 0.9375rem;
  line-height: 1.55;
}
.journey-conclusion {
  padding: 1.25rem 1.5rem;
  background: rgba(0, 183, 255, 0.06);
  font-family: var(--font-h);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--fg);
  line-height: 1.5;
}

/* ═══════ DOBRA 6 — DISTANCES ═══════ */
.distances {
  padding: 7rem 0;
  background: var(--bg-2);
}
.distances-intro {
  max-width: 680px;
  margin: 0 auto 3.5rem;
  text-align: center;
}
.distances-intro p {
  margin-bottom: 1rem;
}
.distances-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}
.distance-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--r);
  padding: 2.25rem 2rem;
  transition: border-color 0.2s;
}
.distance-card:hover {
  border-color: rgba(0, 183, 255, 0.25);
}
.dist-num {
  font-family: var(--font-h);
  font-size: 3.5rem;
  font-weight: 800;
  background: var(--grad);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: block;
  line-height: 1;
  margin-bottom: 1.25rem;
}
.distance-card h3 {
  font-size: 1.0625rem;
  font-weight: 700;
  margin-bottom: 0.625rem;
}
.distance-card p {
  color: var(--fg-muted);
  font-size: 0.9375rem;
}

/* ═══════ DOBRA 7 — WEUNY ═══════ */
.weuny-section {
  padding: 7rem 0;
  overflow: hidden;
}
.weuny-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: center;
}
.weuny-text h2 {
  font-size: clamp(1.5rem, 2.75vw, 2.25rem);
  font-weight: 700;
  margin-bottom: 1.5rem;
}
.weuny-text p {
  color: var(--fg-muted);
  margin-bottom: 1rem;
}
.weuny-screenshot {
  position: relative;
}
.screenshot-glow {
  position: absolute;
  inset: -40px;
  background: radial-gradient(
    ellipse at center,
    rgba(0, 183, 255, 0.12),
    transparent 70%
  );
  pointer-events: none;
}
.screenshot-frame {
  width: 160%;
  max-width: none;
  border-radius: 1rem 0 1rem 1rem;
  border: 1px solid var(--border);
  border-right: none;
  background: var(--bg-2);
  position: relative;
  overflow: hidden;
}
.screenshot-frame::after {
  display: none;
}
.screenshot-bar {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1rem;
  background: rgba(255, 255, 255, 0.03);
  border-bottom: 1px solid var(--border);
}
.bar-dot {
  width: 0.6rem;
  height: 0.6rem;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.15);
}
.bar-label {
  font-size: 0.75rem;
  color: var(--fg-muted);
  margin-left: 0.5rem;
}
.screenshot-frame img {
  width: 100%;
  display: block;
  height: auto;
}

/* ═══════ FAQ ═══════ */
.faq-section {
  padding: 7rem 0;
  background: var(--bg-2);
}
.faq-list {
  max-width: 760px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--r);
  overflow: hidden;
  transition: border-color 0.2s;
}
.faq-item.open {
  border-color: rgba(0, 183, 255, 0.25);
}
.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.5rem 2rem;
  text-align: left;
  color: var(--fg);
  font-family: var(--font-h);
  font-size: 0.9375rem;
  font-weight: 600;
}
.faq-icon {
  font-size: 1.375rem;
  font-weight: 300;
  color: #00b7ff;
  flex-shrink: 0;
  transition: transform 0.3s ease;
  line-height: 1;
}
.faq-item.open .faq-icon {
  transform: rotate(45deg);
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition:
    max-height 0.4s ease,
    padding 0.4s ease;
}
.faq-answer p {
  color: var(--fg-muted);
  padding: 0 2rem;
  line-height: 1.75;
}
.faq-item.open .faq-answer {
  max-height: 300px;
  padding: 0 0 1.75rem;
}

/* ═══════ CTA FINAL ═══════ */
.cta-final {
  padding: 7rem 0;
}
.cta-inner {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 1.5rem;
  padding: 5rem 3rem;
  text-align: center;
  max-width: 760px;
  margin: 0 auto;
  position: relative;
  overflow: hidden;
}
.cta-inner::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(
    ellipse at 50% 0%,
    rgba(0, 183, 255, 0.08),
    transparent 60%
  );
  pointer-events: none;
}
.cta-inner h2 {
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  font-weight: 700;
  margin-bottom: 1.25rem;
}
.cta-inner p {
  max-width: 520px;
  margin: 0 auto 2.5rem;
  color: var(--fg-muted);
}
.cta-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  justify-content: center;
}

/* ═══════ FOOTER ═══════ */
.occ-footer {
  background: var(--bg-2);
  border-top: 1px solid var(--border);
  padding: 3.5rem 0 2rem;
}
.footer-inner {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 3rem;
  align-items: start;
  padding-bottom: 2.5rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: 2rem;
}
.footer-brand .occ-logo-mark {
  font-family: var(--font-h);
  font-size: 1.125rem;
  font-weight: 800;
  background: var(--grad);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.footer-brand p {
  font-size: 0.75rem;
  color: var(--fg-muted);
  margin-top: 0.25rem;
}
.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.75rem;
  align-items: center;
}
.footer-nav a {
  font-size: 0.875rem;
  color: var(--fg-muted);
  transition: color 0.2s;
}
.footer-nav a:hover {
  color: var(--fg);
}
.footer-weuny a {
  font-size: 0.875rem;
  color: var(--fg-muted);
  transition: color 0.2s;
}
.footer-weuny a:hover {
  color: var(--fg);
}
.footer-weuny strong {
  color: #00b7ff;
}
.footer-bottom p {
  font-size: 0.8125rem;
  color: var(--fg-muted);
}

/* ═══════ RESPONSIVE ═══════ */
@media (max-width: 1024px) {
  .layers-container {
    grid-template-columns: 240px 1fr;
    gap: 2rem;
  }
  .overview-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  .overview-highlight {
    position: static;
    max-width: 480px;
  }
}

@media (max-width: 900px) {
  .desktop-nav,
  .header-cta {
    display: none;
  }
  .mobile-toggle {
    display: flex;
  }
  .layers-container {
    grid-template-columns: 1fr;
  }
  .layers-nav {
    flex-direction: row;
    flex-wrap: wrap;
    gap: 0.5rem;
    position: static;
    margin-bottom: 2rem;
  }
  .layer-tab {
    flex: none;
  }
  .lt-name {
    display: none;
  }
  .lt-num {
    font-size: 0.75rem;
    min-width: auto;
  }
  .layer-tab {
    padding: 0.625rem 0.875rem;
  }
  .weuny-inner {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
  .daily-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  .distances-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  .footer-inner {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
}

@media (max-width: 600px) {
  .hero {
    padding: 8rem 0 5rem;
  }
  .overview,
  .layers,
  .flow-section,
  .daily,
  .distances,
  .weuny-section,
  .faq-section,
  .cta-final {
    padding: 5rem 0;
  }
  .flow-step {
    grid-template-columns: 3rem 1fr;
    gap: 1.5rem;
  }
  .flow-num {
    width: 2.75rem;
    height: 2.75rem;
    font-size: 0.75rem;
  }
  .cta-inner {
    padding: 3.5rem 1.5rem;
  }
  .faq-question {
    padding: 1.25rem 1.5rem;
  }
}