:root {
  color-scheme: light;
  --ink: #172033;
  --muted: #667085;
  --line: #d9e1ec;
  --panel: #ffffff;
  --soft: #f7fafc;
  --bg: #eef3f8;
  --accent: #0f766e;
  --accent-strong: #0b5f59;
  --blue: #2563eb;
  --violet: #6d5dfc;
  --warning: #b45309;
  --shadow: 0 18px 50px rgba(23, 32, 51, .09);
  font-family: "Segoe UI", system-ui, sans-serif;
}

* { box-sizing: border-box; }

[hidden] { display: none !important; }

html,
body {
  max-width: 100%;
  overflow-x: hidden;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    linear-gradient(180deg, rgba(255,255,255,.92), rgba(238,243,248,.96)),
    linear-gradient(135deg, rgba(15,118,110,.08), transparent 34%, rgba(37,99,235,.07)),
    var(--bg);
  color: var(--ink);
}

a { color: inherit; }

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 clamp(18px, 5vw, 72px);
  border-bottom: 1px solid rgba(217, 225, 236, .9);
  background: rgba(255, 255, 255, .84);
  backdrop-filter: blur(14px);
  overflow: hidden;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 850;
  text-decoration: none;
  font-size: 21px;
}

.brand img {
  width: 34px;
  height: 34px;
  border-radius: 8px;
}

nav {
  min-width: 0;
  display: flex;
  gap: 8px;
  align-items: center;
}

nav a {
  min-height: 38px;
  display: inline-flex;
  align-items: center;
  border-radius: 8px;
  padding: 0 12px;
  text-decoration: none;
  color: var(--muted);
  font-weight: 700;
}

nav a:hover {
  background: #f1f5f9;
  color: var(--ink);
}

.nav-login {
  border: 1px solid var(--line);
  background: #fff;
}

.nav-user {
  max-width: min(360px, 42vw);
  gap: 10px;
  border: 1px solid rgba(217, 225, 236, .95);
  background: rgba(255, 255, 255, .82);
  padding: 6px 8px 6px 6px;
}

.nav-avatar,
.profile-avatar {
  display: inline-grid;
  place-items: center;
  flex: 0 0 auto;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--accent), var(--blue));
  color: #fff;
  font-weight: 900;
}

.nav-avatar {
  width: 34px;
  height: 34px;
  font-size: 14px;
}

.nav-user-copy {
  min-width: 0;
  display: grid;
  line-height: 1.15;
}

.nav-user-copy strong,
.nav-user-copy small {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.nav-user-copy strong {
  color: var(--ink);
  font-size: 13px;
}

.nav-user-copy small {
  color: var(--muted);
  font-size: 11px;
}

.nav-badge {
  min-height: 22px;
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  background: rgba(15, 118, 110, .1);
  color: var(--accent);
  padding: 0 8px;
  font-size: 11px;
  font-weight: 900;
  text-transform: uppercase;
}

main {
  width: min(1180px, 100%);
  margin: 0 auto;
  padding: clamp(24px, 5vw, 64px) clamp(16px, 4vw, 34px) 56px;
  overflow: hidden;
}

.hero {
  min-height: calc(100vh - 160px);
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(320px, .92fr);
  gap: clamp(28px, 5vw, 56px);
  align-items: center;
}

.hero-copy {
  max-width: 710px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--accent);
  font-size: 13px;
  font-weight: 850;
  text-transform: uppercase;
  letter-spacing: 0;
}

h1, h2, p { overflow-wrap: break-word; }

h1 {
  margin: 0 0 18px;
  font-size: clamp(42px, 6vw, 74px);
  line-height: 1.12;
  letter-spacing: 0;
}

.hero h1 {
  max-width: 760px;
  font-size: clamp(42px, 5.6vw, 68px);
  line-height: 1.28;
  text-wrap: balance;
}

h2 {
  margin: 0 0 10px;
  font-size: 19px;
  line-height: 1.25;
  letter-spacing: 0;
}

.lead {
  max-width: 690px;
  margin: 0;
  color: var(--muted);
  font-size: 20px;
  line-height: 1.75;
}

.actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 24px;
}

.button {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--ink);
  padding: 10px 16px;
  text-decoration: none;
  font: inherit;
  font-weight: 800;
  cursor: pointer;
  box-shadow: 0 6px 18px rgba(23, 32, 51, .06);
}

.button:hover {
  border-color: #b7c4d4;
  background: #f8fafc;
}

.button.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  box-shadow: 0 10px 24px rgba(15, 118, 110, .22);
}

.button.primary:hover {
  background: var(--accent-strong);
}

.button:disabled {
  cursor: not-allowed;
  opacity: .62;
  box-shadow: none;
}

form[data-busy="true"] {
  opacity: .78;
}

.trust-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
}

.trust-row span {
  border: 1px solid rgba(15, 118, 110, .18);
  border-radius: 999px;
  background: rgba(255, 255, 255, .72);
  color: #20504c;
  padding: 7px 11px;
  font-size: 13px;
  font-weight: 800;
}

.network-console,
.panel,
.feature-band article {
  border: 1px solid rgba(217, 225, 236, .92);
  border-radius: 8px;
  background: rgba(255, 255, 255, .92);
  box-shadow: var(--shadow);
}

.network-console {
  padding: 24px;
  overflow: hidden;
}

.console-head {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--muted);
  font-weight: 800;
}

.console-head strong {
  margin-left: auto;
  color: var(--accent);
}

.dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #22c55e;
  box-shadow: 0 0 0 6px rgba(34, 197, 94, .14);
}

.link-map {
  position: relative;
  min-height: 290px;
  margin: 22px 0;
  border: 1px solid #e5ebf2;
  border-radius: 8px;
  background:
    linear-gradient(90deg, rgba(37,99,235,.08) 1px, transparent 1px),
    linear-gradient(0deg, rgba(15,118,110,.08) 1px, transparent 1px),
    #f8fafc;
  background-size: 44px 44px;
}

.node {
  position: absolute;
  width: 142px;
  min-height: 86px;
  display: grid;
  place-content: center;
  gap: 6px;
  border: 1px solid #cfd9e6;
  border-radius: 8px;
  background: #fff;
  text-align: center;
  box-shadow: 0 12px 26px rgba(23, 32, 51, .08);
}

.node span {
  color: var(--muted);
  font-weight: 800;
}

.node strong {
  font-size: 14px;
}

.node.local {
  left: 26px;
  top: 42px;
}

.node.peer {
  right: 26px;
  bottom: 42px;
}

.path {
  position: absolute;
  min-height: 34px;
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  padding: 0 12px;
  color: #fff;
  font-size: 13px;
  font-weight: 850;
  box-shadow: 0 10px 22px rgba(23, 32, 51, .14);
}

.path.direct {
  left: 38%;
  top: 38%;
  background: var(--blue);
}

.path.relay {
  left: 20%;
  bottom: 28px;
  background: var(--warning);
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  margin: 0;
}

.metric-grid div {
  border: 1px solid #e4eaf1;
  border-radius: 8px;
  background: #fbfdff;
  padding: 12px;
}

.metric-grid dt {
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
}

.metric-grid dd {
  margin: 5px 0 0;
  font-weight: 850;
}

.feature-band {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: -24px;
}

.feature-band article {
  padding: 20px;
}

.feature-band p,
.muted,
.form-note {
  color: var(--muted);
  line-height: 1.7;
}

.panel {
  max-width: 720px;
  margin: 0 auto;
  padding: clamp(24px, 4vw, 36px);
}

.auth-panel {
  max-width: 480px;
}

.download-panel,
.dashboard-panel { max-width: none; }

.panel-title {
  margin-bottom: 24px;
}

.panel-title h1 {
  font-size: clamp(32px, 5vw, 48px);
}

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

label {
  display: grid;
  gap: 8px;
  font-weight: 800;
}

input {
  width: 100%;
  min-height: 44px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 9px 12px;
  background: #fff;
  color: var(--ink);
  font: inherit;
}

input:focus {
  border-color: var(--accent);
  outline: 3px solid rgba(15, 118, 110, .14);
}

input[aria-invalid="true"] {
  border-color: #b42318;
}

.field-error {
  display: block;
  margin-top: -10px;
  color: #b42318;
  font-size: 13px;
  font-weight: 700;
  line-height: 1.45;
}

.field-error.valid {
  color: #15803d;
  font-size: 15px;
  line-height: 1.2;
}

.inline-field {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 10px;
  align-items: end;
}

.inline-field .button {
  min-width: 120px;
}

.password-reset {
  margin-top: 0;
}

.password-panel {
  padding: 20px;
}

.password-panel h2,
.password-reset h2 {
  margin: 0 0 14px;
}

.download-card {
  min-width: 0;
  border: 1px solid #dce4ee;
  border-radius: 8px;
  background: #fff;
  padding: clamp(20px, 4vw, 30px);
  box-shadow: 0 14px 36px rgba(23, 32, 51, .08);
}

.app-head {
  display: flex;
  align-items: center;
  gap: 14px;
  padding-bottom: 20px;
  border-bottom: 1px solid #e8eef5;
}

.app-head img {
  width: 62px;
  height: 62px;
  border-radius: 8px;
  box-shadow: 0 12px 24px rgba(15, 118, 110, .16);
}

.app-head div {
  min-width: 0;
  display: grid;
  gap: 4px;
}

.app-head strong {
  font-size: 26px;
  line-height: 1.1;
}

.app-head span {
  color: var(--muted);
  font-weight: 800;
}

.release-meta {
  display: grid;
  gap: 12px;
}

.release-meta {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin: 22px 0;
}

.release-meta div {
  min-width: 0;
  border: 1px solid #e4eaf1;
  border-radius: 8px;
  background: #f8fafc;
  padding: 14px;
}

.release-meta dt {
  color: var(--muted);
  font-size: 12px;
  font-weight: 850;
}

.release-meta dd {
  display: block;
  margin: 6px 0 0;
  color: var(--ink);
  font-weight: 900;
  overflow-wrap: anywhere;
  font-size: 14px;
}

.release-note {
  margin: 0;
  border: 1px solid rgba(15, 118, 110, .14);
  border-radius: 8px;
  background: rgba(15, 118, 110, .06);
  color: #20504c;
  padding: 13px 14px;
  line-height: 1.65;
}

.profile-avatar {
  width: 76px;
  height: 76px;
  margin-bottom: 18px;
  font-size: 30px;
  box-shadow: 0 16px 32px rgba(37, 99, 235, .18);
}

.download-page,
.dashboard-page {
  display: grid;
  gap: 22px;
}

.download-hero,
.dashboard-hero,
.download-card,
.download-side,
.member-card,
.traffic-card,
.account-panel,
.quick-card {
  border: 1px solid rgba(217, 225, 236, .92);
  border-radius: 8px;
  background: rgba(255, 255, 255, .92);
  box-shadow: var(--shadow);
  min-width: 0;
}

.download-hero {
  min-height: 230px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 24px;
  align-items: end;
  padding: clamp(24px, 5vw, 44px);
  background:
    linear-gradient(135deg, rgba(15,118,110,.12), rgba(37,99,235,.08) 56%, rgba(255,255,255,.92)),
    #fff;
  overflow: hidden;
}

.download-hero h1,
.dashboard-hero h1 {
  font-size: clamp(40px, 6vw, 68px);
}

.download-status {
  min-width: 178px;
  border: 1px solid rgba(15, 118, 110, .18);
  border-radius: 8px;
  background: rgba(255, 255, 255, .72);
  padding: 16px;
}

.download-status span,
.mini-card span,
.member-card span,
.quick-card span,
.card-title span {
  color: var(--muted);
  font-size: 12px;
  font-weight: 850;
  text-transform: uppercase;
}

.download-status strong {
  display: block;
  margin-top: 6px;
  color: var(--accent);
  font-size: 22px;
}

.download-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(280px, .75fr);
  gap: 18px;
  align-items: stretch;
}

.download-card.featured {
  padding: clamp(22px, 4vw, 34px);
}

.download-side {
  display: grid;
  gap: 12px;
  padding: 16px;
}

.mini-card {
  min-width: 0;
  border: 1px solid #e4eaf1;
  border-radius: 8px;
  background: #f8fafc;
  padding: 16px;
}

.mini-card strong {
  display: block;
  margin-top: 6px;
  font-size: 24px;
}

.mini-card small {
  display: block;
  margin-top: 8px;
  color: var(--muted);
  line-height: 1.6;
}

.dashboard-hero {
  min-height: 245px;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: clamp(18px, 4vw, 30px);
  align-items: center;
  padding: clamp(24px, 5vw, 44px);
  background:
    linear-gradient(135deg, rgba(15,118,110,.1), rgba(109,93,252,.08) 48%, rgba(255,255,255,.96)),
    #fff;
  overflow: hidden;
}

.dashboard-actions {
  min-width: 0;
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.dashboard-grid {
  display: grid;
  grid-template-columns: minmax(240px, .72fr) minmax(0, 1.28fr);
  gap: 18px;
}

.member-card,
.quick-card {
  min-width: 0;
  padding: clamp(20px, 3vw, 28px);
}

.member-card {
  color: #fff;
  background:
    linear-gradient(135deg, #0f766e, #2563eb);
  border-color: rgba(255,255,255,.25);
}

.member-card span,
.member-card p {
  color: rgba(255,255,255,.78);
}

.member-card strong {
  display: block;
  margin-top: 14px;
  font-size: clamp(38px, 6vw, 64px);
  line-height: 1;
}

.member-card p,
.quick-card p {
  margin: 14px 0 0;
  line-height: 1.7;
}

.card-icon {
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  margin-bottom: 18px;
  border-radius: 8px;
  background: rgba(255,255,255,.18);
  color: #fff;
  font-size: 22px;
  font-weight: 900;
}

.traffic-card {
  min-width: 0;
  padding: clamp(20px, 3vw, 28px);
}

.card-title {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
}

.card-title strong {
  color: var(--accent);
  font-size: 26px;
}

.traffic-bar {
  height: 14px;
  overflow: hidden;
  margin: 22px 0;
  border-radius: 999px;
  background: #e8eef5;
}

.traffic-bar span {
  display: block;
  width: 0%;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--accent), var(--blue));
  transition: width .3s ease;
}

.traffic-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin: 0;
}

.traffic-stats div {
  min-width: 0;
  border: 1px solid #e4eaf1;
  border-radius: 8px;
  background: #f8fafc;
  padding: 12px;
}

.traffic-stats dt {
  color: var(--muted);
  font-size: 12px;
  font-weight: 850;
}

.traffic-stats dd {
  margin: 5px 0 0;
  font-weight: 900;
  overflow-wrap: anywhere;
}

.traffic-period {
  margin: 14px 0 0;
  color: var(--muted);
}

.account-panel {
  min-width: 0;
  display: grid;
  gap: 0;
  padding: 8px 18px;
}

.account-row {
  min-width: 0;
  display: grid;
  grid-template-columns: 110px minmax(0, 1fr);
  gap: 12px;
  align-items: center;
  border-bottom: 1px solid #e8eef5;
  padding: 14px 0;
}

.account-row:last-child {
  border-bottom: 0;
}

.account-row span {
  color: var(--muted);
  font-size: 13px;
  font-weight: 850;
}

.account-row strong {
  overflow-wrap: anywhere;
}

.quick-card {
  background:
    linear-gradient(135deg, rgba(180,83,9,.08), rgba(255,255,255,.95)),
    #fff;
}

.quick-card strong {
  display: block;
  margin-top: 8px;
  font-size: 25px;
}

.toast {
  position: fixed;
  right: 24px;
  bottom: 24px;
  max-width: min(360px, calc(100vw - 32px));
  border-radius: 8px;
  background: #172033;
  color: #fff;
  padding: 12px 14px;
  box-shadow: 0 18px 36px rgba(23, 32, 51, .22);
}

[data-page="home"] [data-view]:not([data-view="home"]),
[data-page="login"] [data-view]:not([data-view="login"]),
[data-page="register"] [data-view]:not([data-view="register"]),
[data-page="reset"] [data-view]:not([data-view="reset"]),
[data-page="download"] [data-view]:not([data-view="download"]),
[data-page="dashboard"] [data-view]:not([data-view="dashboard"]) {
  display: none;
}

@media (max-width: 860px) {
  .hero {
    min-height: 0;
    grid-template-columns: 1fr;
  }

  .download-hero,
  .download-layout,
  .dashboard-hero,
  .dashboard-grid {
    grid-template-columns: 1fr;
  }

  .dashboard-actions {
    justify-content: flex-start;
  }

  .feature-band {
    margin-top: 28px;
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .topbar {
    height: auto;
    min-height: 64px;
    gap: 12px;
    padding: 10px 14px;
  }

  .brand span {
    font-size: 19px;
  }

  nav {
    gap: 4px;
  }

  nav a {
    min-height: 34px;
    padding: 0 8px;
    font-size: 13px;
  }

  .nav-user {
    max-width: 170px;
    padding-right: 6px;
  }

  .nav-user-copy small,
  .nav-badge {
    display: none;
  }

  main {
    padding: 22px 14px 42px;
  }

  h1 {
    font-size: 40px;
  }

  .lead {
    font-size: 17px;
  }

  .network-console {
    padding: 16px;
  }

  .link-map {
    min-height: 250px;
  }

  .node {
    width: 126px;
    min-height: 78px;
  }

  .node.local {
    left: 14px;
    top: 28px;
  }

  .node.peer {
    right: 14px;
    bottom: 38px;
  }

  .path.direct {
    left: 30%;
    top: 40%;
  }

  .path.relay {
    left: 12px;
    bottom: 12px;
  }

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

  .release-meta,
  .traffic-stats {
    grid-template-columns: 1fr;
  }

  .download-hero,
  .dashboard-hero,
  .download-card.featured,
  .member-card,
  .traffic-card,
  .quick-card {
    padding: 20px;
  }

  .download-status {
    min-width: 0;
  }

  .account-row {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .inline-field {
    grid-template-columns: 1fr;
  }

  .button {
    width: 100%;
  }
}