:root {
  color-scheme: dark;
  --bg: #050a12;
  --panel: #0b1420;
  --panel-2: #101d2a;
  --text: #f4fbff;
  --muted: #b7cbd6;
  --line: #244052;
  --hot: #00d9ff;
  --gold: #7df7ff;
  --mint: #31f6c7;
  --blue: #2f8cff;
  --danger: #ff6b6b;
  --shadow: 0 20px 56px rgba(0, 11, 25, 0.38);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at 22% 0%, rgba(0, 217, 255, 0.16), rgba(5, 10, 18, 0) 340px),
    radial-gradient(circle at 78% 10%, rgba(47, 140, 255, 0.14), rgba(5, 10, 18, 0) 300px),
    linear-gradient(180deg, rgba(49, 246, 199, 0.08), rgba(5, 10, 18, 0) 420px),
    var(--bg);
  color: var(--text);
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.55;
}

a {
  color: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 14px clamp(18px, 5vw, 64px);
  background: rgba(5, 10, 18, 0.9);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(14px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  min-width: 210px;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 84px;
  height: 48px;
  border: 1px solid rgba(0, 217, 255, 0.5);
  background:
    url("wavewarz-logo.png") center / contain no-repeat,
    #ffffff;
  color: transparent;
  font-weight: 800;
  box-shadow: 0 0 18px rgba(0, 217, 255, 0.26);
  overflow: hidden;
}

.brand strong,
.brand small {
  display: block;
}

.brand strong {
  font-size: 1.05rem;
}

.brand small {
  color: var(--muted);
  font-size: 0.78rem;
}

.top-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 10px;
}

.top-nav a {
  color: var(--muted);
  font-size: 0.9rem;
  text-decoration: none;
}

.top-nav a:hover,
.top-nav a:focus-visible {
  color: var(--text);
  text-shadow: 0 0 14px rgba(0, 217, 255, 0.5);
}

.section {
  padding: 72px clamp(18px, 5vw, 64px);
  scroll-margin-top: 92px;
}

.hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(280px, 0.65fr);
  gap: 28px;
  align-items: stretch;
  min-height: 86vh;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -2;
  background:
    linear-gradient(90deg, rgba(5, 10, 18, 0.97), rgba(5, 10, 18, 0.7) 48%, rgba(5, 10, 18, 0.88)),
    linear-gradient(180deg, rgba(0, 217, 255, 0.12), rgba(5, 10, 18, 0.98)),
    url("wavewarz-hero.png") center / cover no-repeat;
}

.hero::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  z-index: -1;
  height: 1px;
  background: var(--line);
}

.hero-copy,
.ready-panel,
.lesson,
.battle,
.faq {
  max-width: 1180px;
}

.hero-copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.eyebrow,
.step-label {
  margin: 0 0 10px;
  color: var(--mint);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  overflow-wrap: anywhere;
}

h1 {
  max-width: 880px;
  margin: 0;
  font-family: Impact, Haettenschweiler, "Arial Black", Arial, Helvetica, sans-serif;
  font-size: clamp(2.4rem, 8vw, 5.7rem);
  line-height: 0.98;
  font-weight: 900;
  letter-spacing: 0;
  text-transform: uppercase;
  text-shadow: 0 0 28px rgba(0, 217, 255, 0.24);
}

h2 {
  margin: 0;
  font-size: clamp(1.75rem, 4vw, 3rem);
  line-height: 1.08;
}

.section-heading h2,
.mission-complete .section-heading h2,
.battle .section-heading h2 {
  font-family: Impact, Haettenschweiler, "Arial Black", Arial, Helvetica, sans-serif;
  font-weight: 900;
  letter-spacing: 0;
}

h3 {
  margin: 0 0 10px;
  font-size: 1.1rem;
}

.hero-text {
  max-width: 760px;
  margin: 24px 0 0;
  color: var(--muted);
  font-size: 1.17rem;
}

.hero-actions {
  display: grid;
  gap: 14px;
  margin-top: 30px;
  max-width: 760px;
}

.hero-primary-actions,
.hero-utility-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.hero-utility-actions .button {
  min-height: 42px;
  padding-block: 10px;
  color: var(--muted);
}

.hero-helper-card {
  max-width: 520px;
  padding: 16px;
  background: rgba(7, 17, 29, 0.82);
  border: 1px solid var(--line);
  box-shadow: inset 0 1px 0 rgba(125, 247, 255, 0.08);
}

.hero-helper-card h3 {
  margin-bottom: 6px;
}

.hero-helper-card p {
  margin: 0 0 12px;
  color: var(--muted);
}

.hero-helper-card .button {
  min-height: 42px;
  padding-block: 10px;
}

.button,
.text-button {
  min-height: 48px;
  border: 0;
  cursor: pointer;
  font: inherit;
  font-weight: 800;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 13px 18px;
  text-decoration: none;
  text-align: center;
}

.primary {
  background: linear-gradient(135deg, var(--hot), var(--blue));
  color: #00101a;
  box-shadow: 0 0 22px rgba(0, 217, 255, 0.28);
}

.secondary {
  background: transparent;
  color: var(--text);
  border: 1px solid rgba(0, 217, 255, 0.42);
}

.ready-panel {
  align-self: center;
  padding: 28px;
  background:
    linear-gradient(180deg, rgba(0, 217, 255, 0.08), rgba(16, 29, 42, 0.9)),
    var(--panel);
  border: 1px solid rgba(0, 217, 255, 0.28);
  box-shadow: var(--shadow);
}

.ready-panel p {
  color: var(--muted);
}

.progress-ring {
  --progress: 0%;
  display: grid;
  place-items: center;
  width: 132px;
  height: 132px;
  margin-bottom: 22px;
  border-radius: 50%;
  background: conic-gradient(var(--hot) 0 var(--progress), var(--line) var(--progress) 100%);
  position: relative;
}

.progress-ring.is-empty {
  background: var(--line);
}

.progress-ring.is-complete {
  background: linear-gradient(135deg, var(--mint), var(--hot), var(--blue));
}

.progress-ring::before {
  content: "";
  position: absolute;
  inset: 10px;
  background: var(--panel);
  border-radius: 50%;
}

.progress-ring span {
  position: relative;
  z-index: 1;
  font-size: 1.6rem;
  font-weight: 900;
}

.text-button {
  padding: 0;
  background: transparent;
  color: var(--blue);
}

.trust-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border-block: 1px solid var(--line);
}

.trust-strip p {
  margin: 0;
  padding: 18px;
  background: #07111d;
  color: var(--text);
  font-weight: 800;
  text-align: center;
}

.success-callout {
  margin: 28px clamp(18px, 5vw, 64px) 0;
  padding: 24px;
  background:
    linear-gradient(135deg, rgba(49, 246, 199, 0.14), rgba(47, 140, 255, 0.08)),
    rgba(11, 20, 32, 0.92);
  border: 1px solid rgba(49, 246, 199, 0.5);
  box-shadow: var(--shadow);
}

.success-callout h2 {
  font-size: clamp(1.35rem, 3vw, 2rem);
}

.success-callout p {
  max-width: 920px;
  margin: 10px 0 0;
  color: var(--text);
  font-weight: 800;
}

.lesson,
.battle,
.faq {
  margin-inline: auto;
}

.lesson.alt {
  background:
    linear-gradient(180deg, rgba(0, 217, 255, 0.04), rgba(5, 10, 18, 0.04)),
    var(--panel);
  max-width: none;
}

.lesson.alt > * {
  margin-inline: auto;
}

.section-heading {
  max-width: 820px;
  margin-bottom: 28px;
}

.section-heading p:not(.step-label) {
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 1.05rem;
}

.section-heading .time-estimate {
  display: inline-flex;
  width: fit-content;
  margin: 0 0 12px;
  padding: 6px 10px;
  background: rgba(107, 183, 255, 0.12);
  border: 1px solid rgba(107, 183, 255, 0.32);
  color: var(--blue);
  font-size: 0.88rem;
  font-weight: 800;
}

.hero-copy .time-estimate {
  width: fit-content;
  margin: 0 0 16px;
  padding: 6px 10px;
  background: rgba(107, 183, 255, 0.12);
  border: 1px solid rgba(107, 183, 255, 0.32);
  color: var(--blue);
  font-size: 0.88rem;
  font-weight: 800;
}

.section-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: -8px 0 22px;
}

.screenshot-placeholder {
  max-width: 760px;
  margin: 0 0 22px;
  overflow: hidden;
  border: 1px solid rgba(0, 217, 255, 0.25);
  background: rgba(0, 217, 255, 0.04);
}

.screenshot-frame {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 132px;
  aspect-ratio: 16 / 7;
  background:
    linear-gradient(135deg, rgba(49, 246, 199, 0.14), rgba(47, 140, 255, 0.12)),
    var(--panel-2);
}

.screenshot-frame img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.screenshot-install-phantom .screenshot-frame {
  min-height: 96px;
  aspect-ratio: 16 / 2.2;
}

.screenshot-install-phantom .screenshot-frame img {
  height: 100%;
  object-position: top center;
}

.screenshot-frame span {
  position: relative;
  z-index: 1;
  padding: 10px 12px;
  max-width: calc(100% - 28px);
  background: rgba(5, 10, 18, 0.82);
  border: 1px solid rgba(0, 217, 255, 0.28);
  color: var(--muted);
  font-size: 0.84rem;
  font-weight: 900;
  text-align: center;
}

.screenshot-placeholder.has-image .screenshot-frame span {
  display: none;
}

.screenshot-placeholder figcaption {
  padding: 12px 14px;
  color: var(--muted);
  border-top: 1px solid rgba(0, 217, 255, 0.18);
  font-size: 0.92rem;
}

.lesson-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  max-width: 860px;
}

.info-card,
.callout,
.split-panel > div,
.faq-list details {
  background:
    linear-gradient(180deg, rgba(0, 217, 255, 0.04), rgba(16, 29, 42, 0)),
    var(--panel-2);
  border: 1px solid var(--line);
  padding: 22px;
}

.info-card p,
.callout p,
.split-panel p,
.faq-list p {
  margin: 0;
  color: var(--muted);
}

.callout ul {
  margin: 0;
  padding-left: 20px;
  color: var(--muted);
}

.callout li + li {
  margin-top: 8px;
}

.device-chooser {
  max-width: 860px;
  margin: -8px 0 22px;
}

.device-chooser > p {
  margin: 0 0 16px;
  color: var(--muted);
}

.device-card-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.device-card ul {
  margin: 0;
  padding-left: 20px;
  color: var(--muted);
}

.device-card li + li {
  margin-top: 8px;
}

.device-card .button {
  margin-top: 18px;
}

.warning {
  border-color: rgba(125, 247, 255, 0.65);
}

.danger {
  border-color: rgba(255, 107, 107, 0.75);
  background: rgba(255, 107, 107, 0.1);
}

.instruction-list {
  display: grid;
  gap: 14px;
  max-width: 860px;
}

.instruction-list div {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  padding: 18px;
  background: #07111d;
  border: 1px solid var(--line);
}

.instruction-list.compact {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  max-width: none;
}

.instruction-list.compact div {
  grid-template-columns: 1fr;
}

.number {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  background: var(--gold);
  color: #00101a;
  font-weight: 900;
}

.instruction-list p {
  margin: 0;
  color: var(--muted);
}

.split-panel {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  max-width: 860px;
}

.complete-row {
  display: flex;
  align-items: center;
  gap: 12px;
  max-width: 860px;
  margin-top: 22px;
  padding: 16px;
  background: rgba(49, 246, 199, 0.1);
  border: 1px solid rgba(49, 246, 199, 0.35);
  font-weight: 800;
}

.handoff-line {
  max-width: 860px;
  margin: 22px 0 0;
  padding: 16px;
  background: rgba(0, 217, 255, 0.1);
  border: 1px solid rgba(0, 217, 255, 0.3);
  color: var(--text);
  font-weight: 800;
}

input[type="checkbox"] {
  width: 24px;
  height: 24px;
  flex: 0 0 auto;
  accent-color: var(--mint);
}

.battle {
  background:
    linear-gradient(135deg, rgba(0, 217, 255, 0.08), rgba(47, 140, 255, 0.05)),
    #07111d;
}

.mission-complete {
  margin-inline: auto;
  background:
    linear-gradient(135deg, rgba(49, 246, 199, 0.1), rgba(47, 140, 255, 0.08)),
    var(--panel);
}

.mission-complete-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(280px, 0.7fr);
  gap: 16px;
  max-width: 920px;
}

.mission-complete-badge {
  display: inline-flex;
  width: fit-content;
  margin: 0 0 14px;
  padding: 10px 14px;
  background: rgba(49, 246, 199, 0.16);
  border: 1px solid rgba(49, 246, 199, 0.55);
  color: var(--mint);
  font-size: 1.35rem;
  font-weight: 900;
}

.mission-complete-checklist,
.event-card {
  background:
    linear-gradient(180deg, rgba(0, 217, 255, 0.06), rgba(16, 29, 42, 0)),
    var(--panel-2);
  border: 1px solid rgba(0, 217, 255, 0.28);
  padding: 22px;
}

.mission-complete-checklist {
  display: grid;
  gap: 10px;
}

.mission-complete-checklist h3 {
  margin-bottom: 4px;
}

.mission-complete-checklist p,
.event-card p {
  margin: 0;
  color: var(--muted);
  font-weight: 800;
}

.event-card h3 {
  color: var(--text);
}

.event-card .section-actions {
  margin: 18px 0 0;
}

.event-card small {
  display: block;
  margin-top: 18px;
  color: var(--muted);
}

.checklist,
.mission-list {
  display: grid;
  gap: 12px;
  max-width: 920px;
}

.checklist label,
.mission-list label {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 18px;
  background:
    linear-gradient(180deg, rgba(0, 217, 255, 0.05), rgba(16, 29, 42, 0)),
    var(--panel-2);
  border: 1px solid rgba(0, 217, 255, 0.25);
  font-weight: 800;
}

.mission-list span {
  display: grid;
  gap: 4px;
}

.mission-list strong {
  color: var(--text);
}

.faq-list {
  display: grid;
  gap: 12px;
  max-width: 920px;
}

.faq-list summary {
  cursor: pointer;
  font-weight: 900;
}

.faq-list p {
  margin-top: 12px;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 28px clamp(18px, 5vw, 64px);
  color: var(--muted);
  border-top: 1px solid var(--line);
}

.site-footer p {
  margin: 0;
}

@media (max-width: 820px) {
  .site-header {
    position: static;
    align-items: flex-start;
    flex-direction: column;
  }

  .top-nav {
    justify-content: flex-start;
  }

  .section {
    padding-block: 48px;
    scroll-margin-top: 24px;
  }

  .section-heading {
    margin-bottom: 16px;
  }

  .screenshot-placeholder {
    margin-bottom: 14px;
  }

  .screenshot-frame {
    min-height: 104px;
    aspect-ratio: 16 / 5;
  }

  .screenshot-install-phantom .screenshot-frame {
    min-height: 72px;
    aspect-ratio: 16 / 1.8;
  }

  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
  }

  .trust-strip,
  .lesson-grid,
  .device-card-grid,
  .instruction-list.compact,
  .mission-complete-grid,
  .split-panel {
    grid-template-columns: 1fr;
  }

  .site-footer {
    flex-direction: column;
  }
}

@media (max-width: 520px) {
  .hero-actions,
  .hero-primary-actions,
  .hero-utility-actions,
  .section-actions,
  .button {
    width: 100%;
  }

  .brand {
    min-width: 0;
  }

  .ready-panel {
    padding: 22px;
  }
}