:root {
  --bg-primary: #0b1020;
  --bg-secondary: #0e1525;
  --bg-card: #121a2b;
  --bg-card-alt: #182236;
  --accent-primary: #3b82f6;
  --accent-secondary: #22d3ee;
  --text-main: #e5eef8;
  --text-muted: #94a3b8;
  --border: rgba(148, 163, 184, 0.18);
  --glow: 0 0 40px rgba(34, 211, 238, 0.12);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  font-family: "Manrope", sans-serif;
  color: var(--text-main);
  background:
    radial-gradient(circle at 85% 8%, rgba(59, 130, 246, 0.13), transparent 40%),
    radial-gradient(circle at 10% 30%, rgba(34, 211, 238, 0.08), transparent 35%),
    linear-gradient(160deg, var(--bg-primary), var(--bg-secondary));
  min-height: 100vh;
  line-height: 1.6;
  overflow-x: hidden;
}

.bg-orb {
  position: fixed;
  border-radius: 999px;
  pointer-events: none;
  filter: blur(54px);
  opacity: 0.4;
  z-index: -1;
}

.orb-a {
  width: 320px;
  height: 320px;
  background: rgba(59, 130, 246, 0.25);
  top: -100px;
  right: -80px;
}

.orb-b {
  width: 260px;
  height: 260px;
  background: rgba(34, 211, 238, 0.18);
  bottom: 8%;
  left: -120px;
}

.container {
  width: min(1120px, 92%);
  margin: 0 auto;
}

.section {
  padding: 92px 0;
}

.site-header {
  position: sticky;
  top: 0;
  backdrop-filter: blur(10px);
  background: rgba(11, 16, 32, 0.75);
  border-bottom: 1px solid var(--border);
  z-index: 50;
}

.nav-wrap {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand {
  color: var(--text-main);
  font-weight: 800;
  letter-spacing: 0.3px;
  text-decoration: none;
  font-size: 1.05rem;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 18px;
}

.main-nav a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.95rem;
  transition: color 0.2s ease;
}

.main-nav a:hover {
  color: var(--text-main);
}

.main-nav .nav-cta {
  color: var(--text-main);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 8px 14px;
}

.menu-toggle {
  display: none;
  background: transparent;
  color: var(--text-main);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 8px 12px;
}

.hero {
  padding-top: 110px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.25fr 1fr;
  gap: 32px;
  align-items: center;
}

.eyebrow {
  color: var(--accent-secondary);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.74rem;
  margin-bottom: 14px;
  font-weight: 700;
}

h1,
h2,
h3 {
  margin: 0 0 12px;
  line-height: 1.2;
}

h1 {
  font-size: clamp(2rem, 4vw, 3rem);
  max-width: 16ch;
}

h2 {
  font-size: clamp(1.55rem, 2.6vw, 2.2rem);
}

h3 {
  font-size: 1.1rem;
}

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

.lead {
  margin-top: 16px;
  max-width: 62ch;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  padding: 11px 18px;
  border-radius: 12px;
  font-weight: 700;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

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

.btn-primary {
  color: #f7fbff;
  background: linear-gradient(100deg, var(--accent-primary), #2a63e0);
  box-shadow: 0 10px 28px rgba(59, 130, 246, 0.34);
}

.btn-ghost {
  color: var(--text-main);
  border: 1px solid var(--border);
  background: rgba(18, 26, 43, 0.35);
}

.glass {
  background: linear-gradient(140deg, rgba(24, 34, 54, 0.82), rgba(18, 26, 43, 0.68));
  border: 1px solid var(--border);
  border-radius: 18px;
  box-shadow: var(--glow);
}

.hero-panel {
  padding: 20px;
}

.panel-head {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-main);
  font-size: 0.92rem;
  margin-bottom: 18px;
}

.dot {
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: var(--accent-secondary);
  box-shadow: 0 0 12px rgba(34, 211, 238, 0.95);
}

.flow-item,
.flow-arrow {
  text-align: center;
}

.flow-item {
  padding: 12px;
  border-radius: 10px;
  background: rgba(11, 16, 32, 0.5);
  border: 1px solid rgba(148, 163, 184, 0.14);
  color: var(--text-main);
}

.flow-arrow {
  color: var(--accent-secondary);
  padding: 8px;
  font-weight: 800;
}

.section-head {
  max-width: 72ch;
  margin-bottom: 28px;
}

.grid {
  display: grid;
  gap: 16px;
}

.cards-4 {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

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

.cards-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.card {
  padding: 18px;
}

.split-panel {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 26px;
  padding: 26px;
}

.feature-list {
  margin: 12px 0 0;
  padding-left: 22px;
  color: var(--text-muted);
  display: grid;
  gap: 8px;
}

.highlight-card {
  background: linear-gradient(145deg, rgba(99, 38, 97, 0.55), rgba(73, 29, 74, 0.45));
}

.visual-box {
  min-height: 280px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  padding: 16px;
}

.visual-chip {
  border-radius: 10px;
  border: 1px solid rgba(148, 163, 184, 0.2);
  background: rgba(11, 16, 32, 0.56);
  color: var(--text-main);
  display: grid;
  place-items: center;
  min-height: 66px;
  font-weight: 700;
}

.platform-note {
  margin-top: 16px;
}

.arch-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 22px;
  align-items: stretch;
}

.architecture {
  display: grid;
  gap: 10px;
  padding: 18px;
}

.architecture div {
  padding: 12px 14px;
  border-radius: 10px;
  background: rgba(11, 16, 32, 0.48);
  border: 1px solid rgba(148, 163, 184, 0.14);
  color: var(--text-main);
}

.pill-wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.pill {
  border-radius: 999px;
  border: 1px solid var(--border);
  padding: 10px 14px;
  background: rgba(24, 34, 54, 0.6);
  color: var(--text-main);
}

.steps {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 12px;
  counter-reset: step;
}

.steps li {
  counter-increment: step;
  background: rgba(18, 26, 43, 0.72);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px 16px;
  color: var(--text-main);
}

.steps li::before {
  content: counter(step);
  display: inline-grid;
  place-items: center;
  width: 24px;
  height: 24px;
  border-radius: 999px;
  margin-right: 10px;
  font-size: 0.82rem;
  font-weight: 700;
  color: #eff6ff;
  background: linear-gradient(100deg, var(--accent-primary), var(--accent-secondary));
}

.cta-section {
  padding-top: 32px;
}

.cta-box {
  padding: 36px;
  text-align: center;
}

.cta-box p {
  margin: 10px auto 24px;
  max-width: 52ch;
}

.cta-box a {
  color: var(--text-main);
}

.contact-form {
  max-width: 860px;
  margin: 0 auto;
  text-align: left;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-bottom: 18px;
}

.contact-form label {
  display: grid;
  gap: 8px;
  font-size: 0.92rem;
  color: var(--text-main);
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  border: 1px solid rgba(148, 163, 184, 0.3);
  border-radius: 10px;
  background: rgba(11, 16, 32, 0.64);
  color: var(--text-main);
  padding: 11px 12px;
  font: inherit;
  outline: none;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.contact-form input:focus,
.contact-form textarea:focus {
  border-color: var(--accent-secondary);
  box-shadow: 0 0 0 4px rgba(34, 211, 238, 0.16);
}

.contact-form textarea {
  resize: vertical;
  min-height: 130px;
}

.contact-form .full-width {
  grid-column: 1 / -1;
}

.contact-form .btn {
  min-width: 180px;
}

.form-status {
  min-height: 24px;
  margin-top: 12px;
  color: var(--text-muted);
  font-size: 0.92rem;
}

.form-status.success {
  color: #7dd3fc;
}

.form-status.error {
  color: #fda4af;
}

.hp-field {
  position: absolute;
  left: -9999px;
  opacity: 0;
  pointer-events: none;
}

.tool-ribbon {
  position: fixed;
  right: 0;
  top: 52%;
  transform: translateY(-50%) translateX(calc(100% - 52px));
  display: flex;
  align-items: stretch;
  z-index: 45;
  transition: transform 0.3s ease;
}

.tool-ribbon.open {
  transform: translateY(-50%) translateX(0);
}

.ribbon-toggle {
  writing-mode: vertical-rl;
  transform: rotate(180deg);
  border: 1px solid rgba(59, 130, 246, 0.45);
  border-right: 0;
  border-radius: 12px 0 0 12px;
  background: linear-gradient(175deg, rgba(59, 130, 246, 0.95), rgba(34, 211, 238, 0.9));
  color: #f8fbff;
  font-family: inherit;
  font-weight: 800;
  letter-spacing: 0.04em;
  cursor: pointer;
  padding: 14px 10px;
  min-height: 200px;
}

.ribbon-content {
  width: min(320px, 86vw);
  padding: 16px;
  border: 1px solid var(--border);
  border-right: 0;
  border-radius: 14px 0 0 14px;
  background: linear-gradient(150deg, rgba(24, 34, 54, 0.95), rgba(18, 26, 43, 0.92));
  box-shadow: var(--glow);
}

.ribbon-title {
  color: var(--text-main);
  font-weight: 700;
  margin-bottom: 4px;
}

.ribbon-copy {
  font-size: 0.86rem;
  margin-bottom: 12px;
}

.ribbon-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.ribbon-list a {
  display: block;
  text-decoration: none;
  color: var(--text-main);
  font-size: 0.92rem;
  border: 1px solid rgba(148, 163, 184, 0.2);
  border-radius: 10px;
  padding: 10px;
  background: rgba(11, 16, 32, 0.55);
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.ribbon-list a:hover {
  border-color: rgba(34, 211, 238, 0.55);
  transform: translateX(-2px);
}

.site-footer {
  border-top: 1px solid var(--border);
  background: rgba(11, 16, 32, 0.82);
}

.footer-wrap {
  min-height: 74px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.footer-wrap a {
  color: var(--text-main);
  text-decoration: none;
}

.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

.delay-1 {
  transition-delay: 0.08s;
}

.delay-2 {
  transition-delay: 0.16s;
}

.delay-3 {
  transition-delay: 0.24s;
}

@media (max-width: 980px) {
  .hero-grid,
  .arch-grid,
  .split-panel,
  .cards-4,
  .cards-3 {
    grid-template-columns: 1fr 1fr;
  }

  .cards-2 {
    grid-template-columns: 1fr;
  }

  .main-nav {
    display: none;
    position: absolute;
    top: 70px;
    right: 4%;
    background: rgba(11, 16, 32, 0.96);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 12px;
    width: min(320px, 90vw);
    flex-direction: column;
    align-items: flex-start;
  }

  .main-nav.open {
    display: flex;
  }

  .menu-toggle {
    display: inline-block;
  }

  .tool-ribbon {
    top: auto;
    bottom: 18px;
    transform: translateX(calc(100% - 46px));
  }

  .tool-ribbon.open {
    transform: translateX(0);
  }

  .ribbon-toggle {
    min-height: 150px;
    font-size: 0.8rem;
  }
}

@media (max-width: 680px) {
  .section {
    padding: 74px 0;
  }

  .hero {
    padding-top: 88px;
  }

  .hero-grid,
  .arch-grid,
  .split-panel,
  .cards-4,
  .cards-3 {
    grid-template-columns: 1fr;
  }

  .cta-box {
    padding: 24px;
  }

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

  .footer-wrap {
    flex-direction: column;
    justify-content: center;
    gap: 6px;
  }

  .ribbon-content {
    width: min(286px, 82vw);
    padding: 12px;
  }
}