:root {
  --ink: #1412b8;
  --sky: #4eb2f3;
  --sky-deep: #2d95dd;
  --coral: #ff5b61;
  --mint: #16a78d;
  --ice: #f8fcff;
  --line: rgba(78, 178, 243, 0.86);
  --scene-height: min(45.8svh, 363px);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  color: var(--ink);
  font-family: "Quicksand", "Avenir Next", "Segoe UI", sans-serif;
  background: #f9fcff;
}

.hero {
  position: relative;
  min-height: 100svh;
  overflow: hidden;
  background:
    linear-gradient(180deg, rgba(236, 248, 255, 0.9) 0%, rgba(255, 255, 255, 0.96) 20%, #fff 58%, #f7fcff 100%);
}

.signal-field {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
}

.signal-field::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(78, 178, 243, 0.13) 1px, transparent 1px),
    linear-gradient(90deg, rgba(78, 178, 243, 0.1) 1px, transparent 1px);
  background-position: center;
  background-size: 88px 88px;
  opacity: 0.18;
  -webkit-mask-image: radial-gradient(circle at 66% 42%, #000 0 24%, transparent 58%);
  mask-image: radial-gradient(circle at 66% 42%, #000 0 24%, transparent 58%);
}

.signal-line,
.signal-node,
.signal-label {
  position: absolute;
  display: block;
}

.signal-line {
  height: 2px;
  background: linear-gradient(90deg, transparent, rgba(78, 178, 243, 0.58), transparent);
  transform-origin: left center;
  animation: signal-drift 8s ease-in-out infinite;
}

.signal-line-one {
  top: 27%;
  left: 53%;
  width: 23vw;
  transform: rotate(-16deg);
}

.signal-line-two {
  top: 44%;
  left: 67%;
  width: 16vw;
  background: linear-gradient(90deg, transparent, rgba(255, 91, 97, 0.34), transparent);
  transform: rotate(22deg);
  animation-delay: -2s;
}

.signal-line-three {
  top: 61%;
  left: 58%;
  width: 20vw;
  background: linear-gradient(90deg, transparent, rgba(22, 167, 141, 0.28), transparent);
  transform: rotate(-5deg);
  animation-delay: -4s;
}

.signal-node {
  width: 10px;
  height: 10px;
  border: 2px solid var(--sky);
  background: rgba(255, 255, 255, 0.9);
  box-shadow: 0 0 0 6px rgba(78, 178, 243, 0.08);
  animation: node-blink 4.2s ease-in-out infinite;
}

.signal-node-one {
  top: 24%;
  left: 62%;
}

.signal-node-two {
  top: 38%;
  left: 84%;
  border-color: var(--coral);
  box-shadow: 0 0 0 6px rgba(255, 91, 97, 0.08);
  animation-delay: -1.6s;
}

.signal-node-three {
  top: 57%;
  left: 71%;
  border-color: var(--mint);
  box-shadow: 0 0 0 6px rgba(22, 167, 141, 0.08);
  animation-delay: -2.7s;
}

.signal-node-four {
  top: 68%;
  left: 88%;
  animation-delay: -3.4s;
}

.signal-label {
  color: rgba(20, 18, 184, 0.52);
  font-size: clamp(0.72rem, 0.72vw, 0.9rem);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.signal-label-one {
  top: 20%;
  left: 64%;
}

.signal-label-two {
  top: 34%;
  left: 82%;
}

.signal-label-three {
  top: 54%;
  left: 74%;
}

.hero-copy {
  position: absolute;
  z-index: 3;
  top: clamp(96px, 22.2svh, 176px);
  left: clamp(34px, 5.3vw, 106px);
}

.hero-row {
  display: flex;
  align-items: flex-end;
}

h1 {
  display: grid;
  width: max-content;
  margin: 0;
  color: var(--ink);
  font-size: clamp(3.35rem, 4.02vw, 5rem);
  font-weight: 600;
  line-height: 1.08;
  letter-spacing: 0;
  text-shadow: 0 7px 16px rgba(40, 57, 208, 0.07);
}

.sky-word {
  color: var(--sky);
}

.search-cluster {
  display: flex;
  align-items: center;
  gap: clamp(34px, 2.5vw, 51px);
  margin-left: clamp(28px, 2.8vw, 56px);
  padding-bottom: clamp(2px, 0.45vw, 8px);
}

.divider {
  display: inline-block;
  width: 2px;
  height: clamp(54px, 4.1vw, 82px);
  border-radius: 999px;
  background: linear-gradient(180deg, rgba(78, 178, 243, 0.08), rgba(78, 178, 243, 0.9), rgba(78, 178, 243, 0.08));
}

.search-box {
  display: flex;
  align-items: center;
  width: clamp(300px, 23vw, 458px);
  height: clamp(66px, 5.28vw, 104px);
  border: 2px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.63);
  box-shadow: 0 15px 34px rgba(93, 174, 236, 0.08);
  backdrop-filter: blur(4px);
}

.search-box.is-searching {
  animation: search-pulse 480ms ease;
}

.search-stack {
  display: grid;
  gap: 18px;
  width: clamp(300px, 23vw, 458px);
}

.search-message {
  width: min(100%, 458px);
  padding: 18px 22px 20px;
  border: 1px solid rgba(78, 178, 243, 0.54);
  border-radius: 8px;
  color: var(--ink);
  background: rgba(255, 255, 255, 0.72);
  box-shadow: 0 22px 48px rgba(93, 174, 236, 0.13);
  backdrop-filter: blur(6px);
  opacity: 0;
  transform: translateY(8px);
  animation: message-rise 360ms ease forwards;
}

.search-message[hidden] {
  display: none;
}

.message-kicker,
.message-text {
  margin: 0;
}

.message-kicker {
  color: var(--sky);
  font-size: 0.84rem;
  font-weight: 700;
  line-height: 1;
  text-transform: uppercase;
}

.message-text {
  margin-top: 8px;
  font-size: clamp(1rem, 1.02vw, 1.18rem);
  font-weight: 700;
  line-height: 1.42;
}

.message-socials {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 12px;
  margin-top: 14px;
  color: rgba(20, 18, 184, 0.78);
  font-size: 0.96rem;
  font-weight: 700;
}

.message-socials a {
  color: var(--ink);
  text-decoration: none;
  border-bottom: 2px solid var(--sky);
}

.message-socials a:hover,
.message-socials a:focus-visible {
  color: var(--sky-deep);
}

.search-icon {
  flex: 0 0 auto;
  width: clamp(35px, 2.35vw, 47px);
  height: clamp(35px, 2.35vw, 47px);
  margin-left: clamp(28px, 2vw, 40px);
  fill: none;
  stroke: var(--sky);
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 4.2;
}

.input-divider {
  display: inline-block;
  width: 2px;
  height: clamp(38px, 3.25vw, 65px);
  margin-left: clamp(22px, 1.55vw, 31px);
  background: rgba(78, 178, 243, 0.48);
}

input {
  min-width: 0;
  width: 100%;
  margin: 0 clamp(22px, 1.8vw, 36px) 0 clamp(24px, 1.6vw, 32px);
  border: 0;
  outline: 0;
  color: var(--ink);
  font: 700 clamp(1.05rem, 1.31vw, 1.62rem) / 1 "Quicksand", "Avenir Next", sans-serif;
  letter-spacing: 0;
  background: transparent;
  appearance: none;
}

input::placeholder {
  color: var(--ink);
  opacity: 1;
}

input::-webkit-search-decoration,
input::-webkit-search-cancel-button {
  appearance: none;
}

@keyframes search-pulse {
  0%,
  100% {
    transform: scale(1);
  }

  45% {
    transform: scale(1.018);
  }
}

@keyframes message-rise {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes signal-drift {
  0%,
  100% {
    opacity: 0.36;
    translate: 0 0;
  }

  50% {
    opacity: 0.78;
    translate: 10px -6px;
  }
}

@keyframes node-blink {
  0%,
  100% {
    opacity: 0.46;
  }

  45% {
    opacity: 1;
  }
}

.mountain-scene {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  z-index: 1;
  margin: 0;
  pointer-events: none;
  -webkit-mask-image: linear-gradient(180deg, transparent 0, #000 34px);
  mask-image: linear-gradient(180deg, transparent 0, #000 34px);
}

.mountain-scene img {
  display: block;
  width: 100%;
  height: auto;
  min-height: 315px;
  object-fit: fill;
  user-select: none;
}

.signal-reveal {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(360px, 0.78fr);
  gap: clamp(44px, 7vw, 120px);
  align-items: center;
  padding: clamp(72px, 8vw, 128px) clamp(34px, 5.3vw, 106px);
  overflow: hidden;
  background:
    linear-gradient(180deg, #fff 0%, rgba(239, 249, 255, 0.82) 100%);
}

.signal-reveal::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  height: min(260px, 24vw);
  background: url("assets/mountain-footer.png") bottom center / cover no-repeat;
  opacity: 0.12;
  pointer-events: none;
  -webkit-mask-image: linear-gradient(180deg, transparent 0, #000 50%);
  mask-image: linear-gradient(180deg, transparent 0, #000 50%);
}

.signal-story,
.signal-console {
  position: relative;
  z-index: 1;
}

.section-kicker {
  margin: 0 0 18px;
  color: var(--sky);
  font-size: clamp(0.88rem, 0.92vw, 1rem);
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.signal-story h2 {
  max-width: 820px;
  margin: 0;
  color: var(--ink);
  font-size: clamp(3rem, 5.2vw, 7rem);
  font-weight: 600;
  line-height: 0.98;
  letter-spacing: 0;
}

.signal-story p:not(.section-kicker) {
  max-width: 690px;
  margin: 28px 0 0;
  color: rgba(20, 18, 184, 0.78);
  font-size: clamp(1.08rem, 1.3vw, 1.42rem);
  font-weight: 600;
  line-height: 1.55;
}

.story-link {
  display: inline-flex;
  align-items: center;
  margin-top: 30px;
  color: var(--ink);
  font-size: 1.08rem;
  font-weight: 700;
  text-decoration: none;
  border-bottom: 3px solid var(--sky);
}

.story-link:hover,
.story-link:focus-visible {
  color: var(--sky-deep);
}

.signal-console {
  min-height: 430px;
  padding: 16px;
  border: 1px solid rgba(78, 178, 243, 0.56);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.68);
  box-shadow: 0 30px 80px rgba(25, 76, 140, 0.12);
  backdrop-filter: blur(8px);
}

.console-top {
  display: flex;
  gap: 7px;
  padding: 4px 0 14px;
}

.console-top span {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--sky);
}

.console-top span:nth-child(2) {
  background: var(--coral);
}

.console-top span:nth-child(3) {
  background: var(--mint);
}

.console-grid {
  position: relative;
  min-height: 372px;
  overflow: hidden;
  border: 1px solid rgba(20, 18, 184, 0.1);
  border-radius: 8px;
  background:
    linear-gradient(rgba(78, 178, 243, 0.12) 1px, transparent 1px),
    linear-gradient(90deg, rgba(78, 178, 243, 0.1) 1px, transparent 1px),
    rgba(248, 252, 255, 0.76);
  background-size: 44px 44px;
}

.console-beam,
.console-point,
.console-tag {
  position: absolute;
  display: block;
}

.console-beam {
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--sky), transparent);
}

.beam-one {
  top: 28%;
  left: 12%;
  width: 72%;
  transform: rotate(-14deg);
}

.beam-two {
  top: 52%;
  left: 18%;
  width: 62%;
  background: linear-gradient(90deg, transparent, var(--coral), transparent);
  transform: rotate(16deg);
}

.beam-three {
  top: 72%;
  left: 8%;
  width: 82%;
  background: linear-gradient(90deg, transparent, var(--mint), transparent);
  transform: rotate(-5deg);
}

.console-point {
  width: 12px;
  height: 12px;
  border: 2px solid var(--ink);
  background: #fff;
  box-shadow: 0 0 0 7px rgba(20, 18, 184, 0.08);
}

.point-one {
  top: 22%;
  left: 20%;
}

.point-two {
  top: 35%;
  left: 72%;
  border-color: var(--sky);
}

.point-three {
  top: 62%;
  left: 34%;
  border-color: var(--coral);
}

.point-four {
  top: 76%;
  left: 80%;
  border-color: var(--mint);
}

.console-tag {
  padding: 7px 10px;
  border: 1px solid rgba(78, 178, 243, 0.46);
  border-radius: 8px;
  color: var(--ink);
  background: rgba(255, 255, 255, 0.78);
  font-size: 0.9rem;
  line-height: 1;
  text-transform: uppercase;
}

.tag-one {
  top: 16%;
  right: 13%;
}

.tag-two {
  top: 48%;
  left: 14%;
}

.tag-three {
  right: 15%;
  bottom: 15%;
}

.curiosity-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 1px solid rgba(78, 178, 243, 0.32);
  border-bottom: 1px solid rgba(78, 178, 243, 0.32);
  background: #fff;
}

.curiosity-strip div {
  min-height: 190px;
  padding: clamp(28px, 3.4vw, 52px) clamp(24px, 5.3vw, 70px);
  border-right: 1px solid rgba(78, 178, 243, 0.24);
}

.curiosity-strip div:last-child {
  border-right: 0;
}

.curiosity-strip span {
  display: block;
  color: var(--sky);
  font-size: 0.95rem;
  font-weight: 700;
}

.curiosity-strip strong {
  display: block;
  max-width: 420px;
  margin-top: 18px;
  color: var(--ink);
  font-size: clamp(1.35rem, 2vw, 2.4rem);
  font-weight: 700;
  line-height: 1.12;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

@media (max-width: 1180px) {
  .hero-copy {
    top: 150px;
  }

  .hero-row {
    display: block;
  }

  .search-cluster {
    margin: 34px 0 0;
    padding-bottom: 0;
  }

  .divider {
    display: none;
  }

  .search-box {
    width: min(82vw, 458px);
  }

  .search-stack {
    width: min(82vw, 458px);
  }
}

@media (max-width: 980px) {
  .signal-field {
    display: none;
  }

  .signal-reveal {
    grid-template-columns: 1fr;
  }

  .signal-console {
    min-height: 340px;
  }

  .console-grid {
    min-height: 286px;
  }

  .curiosity-strip {
    grid-template-columns: 1fr;
  }

  .curiosity-strip div {
    min-height: 0;
    border-right: 0;
    border-bottom: 1px solid rgba(78, 178, 243, 0.24);
  }

  .curiosity-strip div:last-child {
    border-bottom: 0;
  }
}

@media (max-width: 680px) {
  .hero {
    min-height: 100svh;
  }

  .hero-copy {
    top: 132px;
    left: 24px;
    right: 24px;
  }

  h1 {
    width: 100%;
    font-size: clamp(2.55rem, 13vw, 3.5rem);
    line-height: 1.06;
  }

  .search-cluster {
    margin-top: 28px;
  }

  .search-box {
    width: 100%;
    max-width: 420px;
  }

  .search-stack {
    width: 100%;
    max-width: 420px;
  }

  .search-message {
    padding: 16px 18px 18px;
    border-radius: 8px;
  }

  .mountain-scene {
    width: 180%;
    left: -54%;
  }

  .mountain-scene::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    z-index: 1;
    width: 40%;
    height: 120px;
    background: linear-gradient(180deg, #fff 0%, rgba(255, 255, 255, 0.96) 72%, rgba(255, 255, 255, 0));
    pointer-events: none;
  }

  .mountain-scene img {
    min-height: 330px;
  }

  .signal-reveal {
    padding-right: 24px;
    padding-left: 24px;
  }

  .signal-console {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
  }
}