@font-face {
  font-family: "Astera";
  src: url("./assets/fonts/astera.ttf") format("truetype");
  font-display: swap;
}

@font-face {
  font-family: "Roboto Condensed";
  src: url("./assets/fonts/roboto-condensed-latin.ttf") format("truetype");
  font-display: swap;
}

:root {
  --navy-950: #040b1b;
  --navy-900: #071126;
  --navy-800: #0d1d3d;
  --navy-700: #162f61;
  --brand: #243e7e;
  --blue: #4a8cca;
  --blue-bright: #70b8ed;
  --ice: #cdecf7;
  --white: #f8fbfd;
  --muted: #91a4bd;
  --line: rgba(205, 236, 247, 0.15);
  --line-strong: rgba(112, 184, 237, 0.34);
  --success: #71d6b2;
  --warning: #e3bf72;
  --danger: #ef8c91;
  --shadow: 0 32px 90px rgba(0, 0, 0, 0.38);
}

* {
  box-sizing: border-box;
}

html {
  min-width: 320px;
  background: var(--navy-950);
  color-scheme: dark;
  scroll-behavior: smooth;
}

body {
  min-width: 320px;
  min-height: 100vh;
  margin: 0;
  overflow-x: hidden;
  background:
    radial-gradient(circle at 14% 6%, rgba(74, 140, 202, 0.18), transparent 28%),
    radial-gradient(circle at 88% 32%, rgba(36, 62, 126, 0.24), transparent 32%),
    var(--navy-950);
  color: var(--white);
  font-family: "Roboto Condensed", "Arial Narrow", Arial, sans-serif;
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(205, 236, 247, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(205, 236, 247, 0.025) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(to bottom, black, transparent 88%);
}

button,
input {
  font: inherit;
}

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

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

img {
  display: block;
  max-width: 100%;
}

a:focus-visible,
button:focus-visible,
input:focus-visible {
  outline: 3px solid var(--blue-bright);
  outline-offset: 4px;
}

.site-frame {
  width: min(100%, 1520px);
  min-height: 100vh;
  margin-inline: auto;
  display: flex;
  flex-direction: column;
  border-inline: 1px solid rgba(205, 236, 247, 0.05);
  background: rgba(4, 11, 27, 0.24);
}

.mission-header {
  min-height: 92px;
  display: grid;
  grid-template-columns: 1fr auto auto;
  align-items: center;
  gap: 34px;
  padding: 16px clamp(24px, 5vw, 74px);
  border-bottom: 1px solid var(--line);
  background: rgba(4, 11, 27, 0.78);
  backdrop-filter: blur(18px);
}

.ctf-brand {
  width: min(100%, 270px);
  min-height: 52px;
  display: inline-flex;
  align-items: center;
  justify-content: flex-start;
}

.ctf-brand img {
  width: 246px;
  height: 52px;
  padding: 5px 10px;
  border: 1px solid rgba(205, 236, 247, 0.1);
  border-radius: 3px;
  background: rgba(248, 251, 253, 0.96);
  object-fit: contain;
}

.mission-identity {
  min-width: 135px;
  display: grid;
  gap: 5px;
  padding-left: 24px;
  border-left: 1px solid var(--line);
}

.mission-identity span,
.system-state,
.section-label,
.briefing-block > span,
.artifact-hint > span,
.flag-form > label {
  color: var(--blue-bright);
  font-family: "Astera", "Roboto Condensed", sans-serif;
  font-size: 9px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.mission-identity strong {
  color: var(--ice);
  font-size: 14px;
  letter-spacing: 0.04em;
}

.system-state {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  color: var(--ice);
  white-space: nowrap;
}

.state-light {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--success);
  box-shadow:
    0 0 0 5px rgba(113, 214, 178, 0.1),
    0 0 22px rgba(113, 214, 178, 0.65);
}

.state-light.amber {
  background: var(--warning);
  box-shadow:
    0 0 0 5px rgba(227, 191, 114, 0.1),
    0 0 22px rgba(227, 191, 114, 0.55);
}

.landing-main {
  flex: 1;
}

.mission-hero {
  min-height: 690px;
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(520px, 1.1fr);
  align-items: center;
  gap: clamp(60px, 7vw, 110px);
  padding: clamp(70px, 8vw, 124px) clamp(24px, 7vw, 104px);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--blue-bright);
  font-family: "Astera", "Roboto Condensed", sans-serif;
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.eyebrow > span {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--blue-bright);
  box-shadow:
    0 0 0 5px rgba(112, 184, 237, 0.1),
    0 0 20px rgba(112, 184, 237, 0.5);
}

.mission-copy h1 {
  max-width: 720px;
  margin: 30px 0 0;
  font-size: clamp(58px, 6.4vw, 106px);
  font-weight: 800;
  letter-spacing: -0.055em;
  line-height: 0.9;
}

.mission-copy h1 span {
  display: block;
  color: var(--blue-bright);
}

.mission-tagline {
  margin: 32px 0 0;
  color: var(--ice);
  font-family: "Astera", "Roboto Condensed", sans-serif;
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.mission-intro {
  max-width: 620px;
  margin: 22px 0 0;
  color: var(--muted);
  font-size: 21px;
  line-height: 1.65;
}

.signal-console {
  position: relative;
  overflow: hidden;
  min-height: 550px;
  border: 1px solid var(--line-strong);
  background:
    linear-gradient(rgba(112, 184, 237, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(112, 184, 237, 0.035) 1px, transparent 1px),
    rgba(7, 17, 38, 0.92);
  background-size: 52px 52px;
  box-shadow: var(--shadow);
}

.signal-console::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(
    115deg,
    transparent 30%,
    rgba(112, 184, 237, 0.05) 48%,
    transparent 64%
  );
}

.console-bar {
  position: relative;
  z-index: 2;
  min-height: 52px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 0 22px;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
  font-family: "Astera", "Roboto Condensed", sans-serif;
  font-size: 8px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.console-status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--ice);
}

.console-status > span {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 12px rgba(113, 214, 178, 0.6);
}

.console-body {
  min-height: 400px;
  display: grid;
  grid-template-columns: minmax(250px, 0.9fr) 1.1fr;
  align-items: center;
  gap: 28px;
  padding: 42px 38px;
}

.signal-map {
  position: relative;
  width: min(100%, 300px);
  aspect-ratio: 1;
  margin-inline: auto;
  border: 1px solid rgba(112, 184, 237, 0.18);
  border-radius: 50%;
  background:
    linear-gradient(rgba(112, 184, 237, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(112, 184, 237, 0.05) 1px, transparent 1px),
    radial-gradient(circle, rgba(74, 140, 202, 0.12), transparent 62%);
  background-size: 34px 34px, 34px 34px, auto;
  overflow: hidden;
}

.signal-ring {
  position: absolute;
  top: 50%;
  left: 50%;
  border: 1px solid rgba(112, 184, 237, 0.24);
  border-radius: 50%;
  transform: translate(-50%, -50%);
}

.ring-one {
  width: 30%;
  height: 30%;
}

.ring-two {
  width: 58%;
  height: 58%;
}

.ring-three {
  width: 84%;
  height: 84%;
}

.signal-origin {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 13px;
  height: 13px;
  border-radius: 50%;
  background: var(--blue-bright);
  box-shadow:
    0 0 0 8px rgba(112, 184, 237, 0.1),
    0 0 28px rgba(112, 184, 237, 0.8);
  transform: translate(-50%, -50%);
}

.signal-sweep {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 47%;
  height: 1px;
  background: linear-gradient(90deg, var(--blue-bright), transparent);
  transform-origin: left center;
  animation: sweep 6s linear infinite;
}

.console-log {
  position: relative;
  z-index: 2;
  padding: 24px 0;
}

.console-log p {
  margin: 0;
  padding: 14px 0;
  border-bottom: 1px solid rgba(205, 236, 247, 0.08);
  color: var(--muted);
  font-family: Consolas, "Courier New", monospace;
  font-size: 13px;
  line-height: 1.5;
}

.console-log p span {
  margin-right: 9px;
  color: var(--blue-bright);
}

.console-log .active-line {
  color: var(--ice);
}

.cursor {
  display: inline-block;
  width: 8px;
  height: 14px;
  margin: 0 0 -2px 7px;
  background: var(--blue-bright);
  animation: blink 1.1s steps(1) infinite;
}

.console-metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--line);
}

.console-metrics > div {
  min-height: 78px;
  display: grid;
  align-content: center;
  gap: 6px;
  padding: 14px 22px;
}

.console-metrics > div + div {
  border-left: 1px solid var(--line);
}

.console-metrics span {
  color: var(--muted);
  font-size: 11px;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.console-metrics strong {
  color: var(--ice);
  font-size: 16px;
}

.briefing-section {
  padding: 86px clamp(24px, 7vw, 104px) 104px;
  border-top: 1px solid var(--line);
  background: rgba(7, 17, 38, 0.62);
}

.section-label {
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
}

.briefing-grid {
  display: grid;
  grid-template-columns: minmax(280px, 0.72fr) minmax(480px, 1.1fr);
  gap: clamp(60px, 9vw, 140px);
  padding-top: 58px;
}

.briefing-grid h2 {
  max-width: 540px;
  margin: 0;
  font-size: clamp(48px, 5vw, 74px);
  letter-spacing: -0.045em;
  line-height: 0.98;
}

.briefing-grid > div:first-child > p {
  max-width: 520px;
  margin: 25px 0 0;
  color: var(--muted);
  font-size: 19px;
  line-height: 1.7;
}

.briefing-card {
  border-top: 1px solid var(--line-strong);
}

.briefing-block {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 28px;
  padding: 27px 8px;
  border-bottom: 1px solid var(--line);
}

.briefing-block p {
  margin: 0;
  color: var(--ice);
  font-size: 18px;
  line-height: 1.55;
}

.briefing-block ul {
  margin: 0;
  padding: 0;
  display: grid;
  gap: 7px;
  color: var(--muted);
  list-style: none;
}

.briefing-block li::before {
  content: "—";
  margin-right: 10px;
  color: var(--blue-bright);
}

.hint-block {
  background: rgba(74, 140, 202, 0.07);
}

.mission-footer {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  padding: 20px clamp(24px, 5vw, 74px);
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 12px;
  letter-spacing: 0.035em;
  text-align: center;
}

.mission-footer > span:first-child {
  color: var(--ice);
  font-weight: 800;
}

.footer-divider {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--blue-bright);
}

.checkpoint-main {
  flex: 1;
  display: grid;
  place-items: center;
  padding: clamp(70px, 9vw, 130px) 24px;
}

.checkpoint-card {
  position: relative;
  width: min(100%, 790px);
  padding: clamp(38px, 6vw, 76px);
  border: 1px solid var(--line-strong);
  background:
    linear-gradient(rgba(112, 184, 237, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(112, 184, 237, 0.025) 1px, transparent 1px),
    rgba(7, 17, 38, 0.92);
  background-size: 48px 48px;
  box-shadow: var(--shadow);
}

.checkpoint-index {
  position: absolute;
  top: 26px;
  right: 30px;
  color: rgba(205, 236, 247, 0.36);
  font-family: "Astera", "Roboto Condensed", sans-serif;
  font-size: 9px;
  letter-spacing: 0.1em;
}

.checkpoint-card h1 {
  margin: 28px 0 0;
  font-size: clamp(58px, 8vw, 94px);
  letter-spacing: -0.055em;
  line-height: 0.95;
}

.checkpoint-card > p {
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 20px;
}

.checkpoint-card .checkpoint-lead {
  margin-top: 30px;
  color: var(--ice);
  font-size: 24px;
  font-weight: 800;
}

.artifact-hint {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 22px;
  margin-top: 42px;
  padding: 22px;
  border: 1px solid var(--line);
  background: rgba(74, 140, 202, 0.08);
}

.artifact-hint strong {
  color: var(--ice);
  font-size: 18px;
}

.flag-form {
  margin-top: 42px;
}

.flag-form > label {
  display: block;
  margin-bottom: 11px;
}

.flag-control {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 10px;
}

.flag-control input {
  width: 100%;
  min-width: 0;
  min-height: 58px;
  padding: 0 17px;
  border: 1px solid var(--line-strong);
  border-radius: 2px;
  background: rgba(4, 11, 27, 0.84);
  color: var(--white);
  font-family: Consolas, "Courier New", monospace;
  font-size: 16px;
}

.flag-control input::placeholder {
  color: #60748f;
}

.flag-control button,
.conversation-button {
  min-height: 58px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 24px;
  border: 0;
  border-radius: 2px;
  background: var(--blue);
  color: var(--white);
  cursor: pointer;
  font-weight: 800;
  letter-spacing: 0.035em;
  transition:
    transform 160ms ease,
    background 160ms ease;
}

.flag-control button:hover,
.conversation-button:hover {
  background: var(--brand);
  transform: translateY(-2px);
}

.flag-control button:disabled {
  cursor: wait;
  opacity: 0.68;
  transform: none;
}

.flag-feedback {
  min-height: 24px;
  margin: 13px 0 0;
  color: var(--success);
  font-size: 14px;
  font-weight: 700;
}

.flag-feedback.is-error {
  color: var(--danger);
}

.success-card {
  text-align: center;
}

.completion-mark {
  width: 78px;
  height: 78px;
  display: grid;
  place-items: center;
  margin: 0 auto 34px;
  border: 1px solid rgba(113, 214, 178, 0.45);
  border-radius: 50%;
  background: rgba(113, 214, 178, 0.08);
  box-shadow: 0 0 42px rgba(113, 214, 178, 0.12);
}

.completion-mark span {
  width: 30px;
  height: 17px;
  border-left: 3px solid var(--success);
  border-bottom: 3px solid var(--success);
  transform: rotate(-45deg) translate(2px, -3px);
}

.success-card .eyebrow {
  justify-content: center;
}

.success-copy {
  margin-top: 34px;
  color: var(--muted);
  font-size: 20px;
  line-height: 1.65;
}

.success-copy p {
  margin: 17px 0 0;
}

.success-copy p:first-child {
  color: var(--ice);
  font-size: 24px;
  font-weight: 800;
}

.conversation-panel {
  margin-top: 44px;
  padding: 28px;
  border: 1px solid var(--line);
  background: rgba(74, 140, 202, 0.07);
}

.conversation-panel p {
  margin: 0;
  color: var(--muted);
  line-height: 1.55;
}

.conversation-panel p:first-child {
  color: var(--ice);
  font-weight: 800;
}

.conversation-button {
  margin-top: 24px;
}

.main-site-link {
  width: fit-content;
  display: block;
  margin: 18px auto 0;
  border-bottom: 1px solid rgba(205, 236, 247, 0.38);
  color: var(--ice);
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 0.035em;
}

.main-site-link:hover {
  border-color: var(--blue-bright);
  color: var(--blue-bright);
}

@keyframes sweep {
  to {
    transform: rotate(360deg);
  }
}

@keyframes blink {
  50% {
    opacity: 0;
  }
}

@media (max-width: 1040px) {
  .mission-header {
    grid-template-columns: 1fr auto;
  }

  .mission-identity {
    display: none;
  }

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

  .mission-copy {
    max-width: 820px;
  }

  .signal-console {
    width: min(100%, 820px);
  }

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

@media (max-width: 700px) {
  .mission-header {
    min-height: 80px;
    gap: 16px;
    padding: 13px 18px;
  }

  .ctf-brand {
    width: 190px;
    min-height: 48px;
  }

  .ctf-brand img {
    width: 190px;
    height: 46px;
    padding: 4px 7px;
  }

  .system-state {
    font-size: 8px;
  }

  .state-light {
    width: 7px;
    height: 7px;
  }

  .mission-hero {
    min-height: auto;
    gap: 54px;
    padding: 62px 18px 72px;
  }

  .mission-copy h1 {
    font-size: clamp(50px, 15vw, 70px);
  }

  .mission-tagline {
    font-size: 10px;
  }

  .mission-intro {
    font-size: 18px;
  }

  .signal-console {
    min-height: auto;
  }

  .console-bar {
    padding: 0 15px;
    font-size: 7px;
  }

  .console-body {
    min-height: auto;
    grid-template-columns: 1fr;
    padding: 34px 22px;
  }

  .signal-map {
    width: min(100%, 250px);
  }

  .console-log p {
    font-size: 12px;
  }

  .console-metrics > div {
    min-height: 70px;
    padding: 12px 10px;
  }

  .console-metrics span {
    font-size: 9px;
  }

  .console-metrics strong {
    font-size: 13px;
  }

  .briefing-section {
    padding: 66px 18px 76px;
  }

  .briefing-grid {
    gap: 44px;
    padding-top: 42px;
  }

  .briefing-grid h2 {
    font-size: 46px;
  }

  .briefing-block {
    grid-template-columns: 1fr;
    gap: 13px;
    padding: 24px 6px;
  }

  .mission-footer {
    min-height: 88px;
    flex-direction: column;
    gap: 7px;
    padding: 22px 18px;
  }

  .footer-divider {
    display: none;
  }

  .checkpoint-main {
    padding: 58px 16px 76px;
  }

  .checkpoint-card {
    padding: 48px 22px 34px;
  }

  .checkpoint-index {
    top: 18px;
    right: 19px;
  }

  .checkpoint-card h1 {
    font-size: clamp(52px, 16vw, 70px);
  }

  .artifact-hint {
    grid-template-columns: 1fr;
    gap: 9px;
    padding: 19px;
  }

  .flag-control {
    grid-template-columns: 1fr;
  }

  .flag-control button,
  .conversation-button {
    width: 100%;
  }

  .conversation-panel {
    padding: 24px 18px;
  }
}

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