:root {
  --black: #020409;
  --dark: #070b13;
  --dark-2: #101620;
  --text: #f4f7fb;
  --muted: #a8b2c3;
  --line: rgba(50, 153, 255, 0.28);
  --blue: #087cff;
  --blue-2: #22d3ff;
  --card: rgba(9, 14, 24, 0.78);
  --border: rgba(34, 137, 255, 0.34);
  --max: 1180px;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  overflow-x: hidden;
  background: var(--black);
  color: var(--text);
  font-family: "Inter", Arial, sans-serif;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -6;
  background:
    radial-gradient(circle at 58% 6%, rgba(92, 142, 255, 0.22), transparent 25%),
    radial-gradient(circle at 88% 40%, rgba(0, 132, 255, 0.18), transparent 22%),
    linear-gradient(180deg, #050811 0%, #020409 56%, #000 100%);
}

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

.site-bg,
.site-bg > * {
  position: fixed;
  pointer-events: none;
}

.site-bg {
  inset: 0;
  z-index: -5;
  overflow: hidden;
}

.site-bg::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(0, 0, 0, 0.66) 0%, rgba(0, 0, 0, 0.14) 46%, rgba(0, 0, 0, 0.5) 100%),
    linear-gradient(180deg, rgba(2, 4, 9, 0.04) 0%, rgba(2, 4, 9, 0.1) 48%, rgba(2, 4, 9, 0.88) 100%),
    url("../assets/altive-mountain-bg-optimized.jpg") center center / cover no-repeat;
  filter: saturate(1.08) contrast(1.12) brightness(1.05);
  opacity: 1;
}

.site-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(0, 0, 0, 0.38) 0%, rgba(0, 0, 0, 0.04) 45%, rgba(0, 0, 0, 0.34) 100%),
    linear-gradient(180deg, rgba(2, 4, 9, 0.02) 0%, rgba(2, 4, 9, 0.26) 66%, #020409 100%);
}

.circuit-lines {
  inset: -20%;
  opacity: 0.55;
  background:
    linear-gradient(115deg, transparent 0 18%, var(--line) 18.1%, transparent 18.35% 100%),
    linear-gradient(68deg, transparent 0 76%, rgba(34, 211, 255, 0.32) 76.1%, transparent 76.35% 100%),
    linear-gradient(rgba(8, 124, 255, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(8, 124, 255, 0.05) 1px, transparent 1px);
  background-size: 100% 100%, 100% 100%, 64px 64px, 64px 64px;
  transform: rotate(-2deg);
}

.circuit-lines::before,
.circuit-lines::after {
  content: "";
  position: absolute;
  width: 42vw;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--blue-2), transparent);
  box-shadow: 0 0 18px rgba(34, 211, 255, 0.8);
}

.circuit-lines::before {
  top: 24%;
  left: -8%;
  transform: rotate(32deg);
}

.circuit-lines::after {
  right: -7%;
  bottom: 18%;
  transform: rotate(-48deg);
}

.mountain-range {
  left: 0;
  right: 0;
  bottom: 0;
  transform-origin: bottom center;
}

.mountain-back {
  height: 58vh;
  opacity: 0.14;
  background: linear-gradient(180deg, rgba(67, 80, 101, 0.76), rgba(9, 12, 19, 0.98));
  clip-path: polygon(0 100%, 0 72%, 7% 63%, 14% 72%, 24% 45%, 31% 58%, 39% 34%, 47% 68%, 55% 46%, 63% 62%, 72% 30%, 81% 64%, 91% 42%, 100% 70%, 100% 100%);
}

.mountain-mid {
  height: 64vh;
  opacity: 0.22;
  background:
    linear-gradient(130deg, rgba(255, 255, 255, 0.26) 0 5%, transparent 5.2% 100%),
    linear-gradient(180deg, #121925, #05070d 82%);
  clip-path: polygon(0 100%, 0 78%, 9% 66%, 16% 74%, 26% 59%, 36% 76%, 52% 28%, 63% 72%, 70% 55%, 78% 69%, 87% 43%, 96% 76%, 100% 72%, 100% 100%);
}

.mountain-front {
  height: 52vh;
  opacity: 0.28;
  background:
    linear-gradient(118deg, transparent 0 51%, rgba(255, 255, 255, 0.22) 51.2%, transparent 54%),
    linear-gradient(180deg, #070a10 0%, #010206 76%);
  clip-path: polygon(0 100%, 0 84%, 10% 73%, 17% 84%, 28% 60%, 36% 81%, 47% 69%, 56% 18%, 66% 77%, 73% 57%, 83% 81%, 93% 66%, 100% 79%, 100% 100%);
}

.blue-ridge {
  width: 42vw;
  height: 3px;
  right: 18vw;
  bottom: 20vh;
  background: linear-gradient(90deg, transparent, var(--blue), var(--blue-2), transparent);
  filter: blur(0.2px);
  transform: rotate(-15deg);
  box-shadow: 0 0 28px rgba(0, 132, 255, 0.85);
}

.topbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(var(--max), calc(100% - 40px));
  margin: 18px auto 0;
  padding: 13px 16px;
  border: 1px solid rgba(34, 211, 255, 0.22);
  border-radius: 8px;
  background:
    linear-gradient(110deg, rgba(34, 211, 255, 0.12), transparent 28%, rgba(8, 124, 255, 0.1) 72%, transparent),
    rgba(3, 7, 14, 0.78);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.08),
    0 18px 60px rgba(0, 0, 0, 0.34),
    0 0 34px rgba(8, 124, 255, 0.12);
  backdrop-filter: blur(18px);
  transition: border-color 0.25s ease, background 0.25s ease;
}

.topbar::before,
.topbar::after {
  content: "";
  position: absolute;
  pointer-events: none;
}

.topbar::before {
  left: 18px;
  right: 18px;
  bottom: -1px;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(34, 211, 255, 0.92), transparent);
  box-shadow: 0 0 16px rgba(34, 211, 255, 0.7);
}

.topbar::after {
  inset: 8px;
  border-radius: 6px;
  z-index: 0;
  background:
    linear-gradient(90deg, transparent 0 18%, rgba(34, 211, 255, 0.16) 18.2%, transparent 18.6% 100%),
    linear-gradient(90deg, transparent 0 77%, rgba(8, 124, 255, 0.18) 77.2%, transparent 77.6% 100%);
}

.topbar.is-scrolled {
  border-color: rgba(34, 211, 255, 0.42);
  background:
    linear-gradient(110deg, rgba(34, 211, 255, 0.13), transparent 32%, rgba(8, 124, 255, 0.12) 72%, transparent),
    rgba(3, 7, 14, 0.94);
}

.brand,
.nav-links,
.hero-actions,
.panel-line,
.footer {
  display: flex;
  align-items: center;
}

.brand {
  gap: 12px;
  position: relative;
  z-index: 1;
}

.brand-copy {
  position: relative;
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 16px 0 2px;
}

.brand-copy::before,
.brand-copy::after {
  content: "";
  position: absolute;
  pointer-events: none;
}

.brand-copy::before {
  left: 0;
  right: 0;
  bottom: 3px;
  height: 1px;
  background: linear-gradient(90deg, var(--blue-2), rgba(8, 124, 255, 0.45), transparent);
  box-shadow: 0 0 12px rgba(34, 211, 255, 0.7);
}

.brand-copy::after {
  right: 0;
  top: 8px;
  width: 10px;
  height: 10px;
  border-top: 1px solid var(--blue-2);
  border-right: 1px solid var(--blue-2);
  opacity: 0.85;
}

.brand-mark {
  width: 72px;
  height: 48px;
  object-fit: contain;
  filter: drop-shadow(0 0 10px rgba(8, 124, 255, 0.32));
}

.brand strong {
  display: block;
  font-family: "Rajdhani", sans-serif;
  font-size: clamp(1.2rem, 2.2vw, 1.85rem);
  line-height: 1;
  letter-spacing: 0.14em;
  white-space: nowrap;
  background: linear-gradient(180deg, #ffffff 0%, #b8c1cf 48%, #ffffff 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: #f6f9ff;
  text-transform: uppercase;
  text-shadow:
    0 0 18px rgba(8, 124, 255, 0.28),
    0 0 28px rgba(34, 211, 255, 0.12);
}

.nav-links {
  position: relative;
  z-index: 1;
  gap: 26px;
  color: #dce6f7;
  font-size: 0.92rem;
  font-weight: 600;
}

.nav-links a {
  position: relative;
  padding: 9px 12px;
  border: 1px solid transparent;
  border-radius: 6px;
  transition: border-color 0.25s ease, background 0.25s ease, color 0.25s ease;
}

.nav-links a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  background: var(--blue-2);
  transition: width 0.25s ease;
}

.nav-links a:hover::after {
  width: 100%;
}

.nav-links a:hover {
  border-color: rgba(34, 211, 255, 0.22);
  background: rgba(8, 124, 255, 0.08);
  color: #ffffff;
}

.menu-toggle {
  display: none;
  position: relative;
  z-index: 1;
  width: 42px;
  height: 42px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.03);
  cursor: pointer;
}

.menu-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  margin: 5px auto;
  background: var(--text);
}

.section {
  width: min(var(--max), calc(100% - 40px));
  margin: 0 auto;
  padding: 110px 0;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: 56px;
  align-items: center;
  min-height: 100vh;
  padding-top: 150px;
}

.eyebrow {
  margin-bottom: 18px;
  color: var(--blue-2);
  font-family: "Rajdhani", sans-serif;
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.hero-logo {
  display: inline-flex;
  align-items: center;
  flex-direction: column;
  margin-top: 4px;
  margin-bottom: 6px;
}

.hero-wordmark {
  width: min(760px, 92vw);
  height: auto;
  object-fit: contain;
  filter:
    drop-shadow(0 0 18px rgba(8, 124, 255, 0.34))
    drop-shadow(0 18px 38px rgba(0, 0, 0, 0.42));
}

.logo-glow-line {
  display: block;
  width: min(430px, 74vw);
  height: 2px;
  margin-top: 18px;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.45), var(--blue-2), transparent);
  box-shadow: 0 0 18px rgba(34, 211, 255, 0.78);
}

.tagline {
  margin-top: 20px;
  color: #ffffff;
  font-family: "Rajdhani", sans-serif;
  font-size: clamp(1.35rem, 3vw, 2rem);
  font-weight: 600;
}

.hero-text {
  max-width: 700px;
  margin-top: 22px;
  color: var(--muted);
  font-size: 1.12rem;
  line-height: 1.8;
}

.hero-actions {
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 36px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 0 22px;
  border-radius: 8px;
  font-weight: 800;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.btn:hover,
.service-card:hover,
.why-item:hover {
  transform: translateY(-6px);
}

.btn-primary {
  background: linear-gradient(135deg, var(--blue), var(--blue-2));
  color: #00101e;
  box-shadow: 0 16px 45px rgba(8, 124, 255, 0.24);
}

.btn-secondary {
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.04);
  color: #f7fbff;
}

.hero-panel {
  position: relative;
  padding: 24px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.08), transparent 32%),
    rgba(5, 10, 18, 0.78);
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.38);
  backdrop-filter: blur(18px);
}

.hero-panel::before {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  background: linear-gradient(135deg, rgba(34, 211, 255, 0.55), transparent 45%, rgba(8, 124, 255, 0.25));
  z-index: -1;
}

.panel-line {
  justify-content: space-between;
  gap: 20px;
  padding: 18px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.09);
}

.panel-line:last-child {
  border-bottom: 0;
}

.panel-line span {
  color: var(--muted);
}

.panel-line strong {
  color: var(--blue-2);
}

.section-heading {
  max-width: 760px;
  margin-bottom: 34px;
}

.section-heading h2 {
  font-family: "Rajdhani", sans-serif;
  font-size: clamp(2.2rem, 5vw, 4rem);
  line-height: 1;
}

.about-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 34px;
  color: var(--muted);
  font-size: 1.05rem;
  line-height: 1.8;
}

.lead {
  color: #eef5ff;
  font-size: 1.45rem;
  font-weight: 600;
  line-height: 1.5;
}

.cards-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.service-card,
.process-step,
.why-item {
  border: 1px solid var(--border);
  border-radius: 8px;
  background:
    linear-gradient(145deg, rgba(8, 124, 255, 0.16), transparent 35%),
    var(--card);
  box-shadow: 0 20px 70px rgba(0, 0, 0, 0.22);
  backdrop-filter: blur(14px);
  transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

.service-card {
  min-height: 246px;
  padding: 28px;
}

.service-card:hover,
.process-step:hover,
.why-item:hover {
  border-color: rgba(34, 211, 255, 0.72);
  box-shadow: 0 24px 80px rgba(8, 124, 255, 0.18);
}

.service-card span,
.process-step span {
  color: var(--blue-2);
  font-family: "Rajdhani", sans-serif;
  font-size: 1.1rem;
  font-weight: 700;
}

.service-card h3,
.process-step h3 {
  margin-top: 42px;
  font-family: "Rajdhani", sans-serif;
  font-size: 1.65rem;
}

.service-card p,
.process-step p,
.why-item p {
  margin-top: 14px;
  color: var(--muted);
  line-height: 1.7;
}

.process-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.process-step {
  min-height: 232px;
  padding: 26px;
  position: relative;
  overflow: hidden;
}

.process-step::after {
  content: "";
  position: absolute;
  left: 26px;
  right: 26px;
  top: 68px;
  height: 1px;
  background: linear-gradient(90deg, var(--blue-2), transparent);
  opacity: 0.55;
}

.why-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.why-item {
  padding: 26px;
}

.why-item strong {
  color: #ffffff;
  font-size: 1.08rem;
}

.social-float {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 30;
  display: flex;
  align-items: center;
  gap: 10px;
}

.float-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 18px;
  border-radius: 8px;
  color: #ffffff;
  font-weight: 800;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.float-btn:hover {
  transform: translateY(-4px);
}

.whatsapp-float {
  border: 1px solid rgba(34, 211, 255, 0.42);
  background: linear-gradient(135deg, #0bbf66, #0b8dff);
  box-shadow: 0 18px 48px rgba(11, 143, 255, 0.26);
}

.instagram-float {
  border: 1px solid rgba(255, 255, 255, 0.16);
  background:
    linear-gradient(135deg, rgba(8, 124, 255, 0.92), rgba(34, 211, 255, 0.24)),
    #0a0f18;
  box-shadow: 0 18px 48px rgba(8, 124, 255, 0.22);
}

.footer {
  justify-content: space-between;
  width: min(var(--max), calc(100% - 40px));
  margin: 0 auto;
  padding: 34px 0 44px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  color: var(--muted);
  font-size: 0.95rem;
}

.footer a {
  color: var(--blue-2);
  font-weight: 700;
}

.footer-links {
  display: flex;
  align-items: center;
  gap: 22px;
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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

@media (max-width: 980px) {
  .hero,
  .about-grid,
  .cards-grid,
  .process-grid,
  .why-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    gap: 28px;
    min-height: auto;
  }

  .hero-panel {
    max-width: 520px;
  }
}

@media (max-width: 760px) {
  .topbar {
    width: calc(100% - 24px);
    margin-top: 12px;
  }

  .menu-toggle {
    display: block;
  }

  .nav-links {
    position: absolute;
    top: calc(100% + 10px);
    left: 0;
    right: 0;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 10px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: rgba(4, 7, 13, 0.96);
  }

  .nav-links.is-open {
    display: flex;
  }

  .nav-links a {
    padding: 14px;
  }

  .section {
    width: min(100% - 28px, var(--max));
    padding: 78px 0;
  }

  .hero {
    padding-top: 132px;
  }

  .brand-mark {
    width: 58px;
    height: 42px;
  }

  .brand-copy {
    min-height: 38px;
    padding-right: 8px;
  }

  .brand strong {
    font-size: 1rem;
    letter-spacing: 0.08em;
  }

  .hero-wordmark {
    width: min(560px, 96vw);
  }

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

  .btn {
    width: 100%;
  }

  .service-card {
    min-height: auto;
  }

  .service-card h3 {
    margin-top: 30px;
  }

  .footer {
    align-items: flex-start;
    flex-direction: column;
    gap: 14px;
    width: calc(100% - 28px);
  }

  .footer-links {
    align-items: flex-start;
    flex-direction: column;
    gap: 10px;
  }

  .social-float {
    right: 14px;
    bottom: 14px;
    left: 14px;
    justify-content: flex-end;
  }

  .float-btn {
    min-height: 48px;
    padding: 0 13px;
    font-size: 0.88rem;
  }
}