:root {
  color-scheme: dark;
  --bg-1: #081122;
  --bg-2: #111f4d;
  --bg-3: #0f7f9a;
  --ink-1: #f4f7ff;
  --ink-2: rgba(244, 247, 255, 0.78);
  --ink-3: rgba(244, 247, 255, 0.48);
  --card: rgba(8, 16, 38, 0.58);
  --card-edge: rgba(255, 255, 255, 0.1);
  --accent-1: #7ef0d6;
  --accent-2: #ffc857;
  --accent-3: #7c9cff;
  --accent-4: #ff7f6d;
  --shadow: 0 32px 80px rgba(0, 0, 0, 0.42);
  --radius-xl: 32px;
  --radius-lg: 24px;
  --radius-md: 18px;
  --font-display: "Avenir Next Condensed", "Arial Narrow", "Trebuchet MS",
    sans-serif;
  --font-body: "Avenir Next", "Segoe UI", "Helvetica Neue", sans-serif;
  --font-mono: "IBM Plex Mono", "SFMono-Regular", "Menlo", monospace;
}

* {
  box-sizing: border-box;
}

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

body {
  min-height: 100svh;
  overflow-x: hidden;
  font-family: var(--font-body);
  color: var(--ink-1);
  background:
    radial-gradient(circle at top left, rgba(255, 200, 87, 0.24), transparent 28%),
    radial-gradient(circle at top right, rgba(124, 156, 255, 0.26), transparent 32%),
    linear-gradient(180deg, #091022 0%, #0b1734 42%, #050914 100%);
}

button,
input {
  font: inherit;
}

button {
  appearance: none;
  border: 0;
}

.backdrop {
  position: fixed;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}

.orb {
  position: absolute;
  border-radius: 999px;
  filter: blur(12px);
  opacity: 0.72;
  animation: drift 18s ease-in-out infinite;
}

.orb-a {
  top: 8%;
  left: -10%;
  width: 220px;
  height: 220px;
  background: radial-gradient(circle, rgba(255, 127, 109, 0.56), transparent 72%);
}

.orb-b {
  top: 34%;
  right: -8%;
  width: 240px;
  height: 240px;
  background: radial-gradient(circle, rgba(126, 240, 214, 0.54), transparent 68%);
  animation-delay: -8s;
}

.orb-c {
  bottom: -6%;
  left: 18%;
  width: 280px;
  height: 280px;
  background: radial-gradient(circle, rgba(124, 156, 255, 0.42), transparent 72%);
  animation-delay: -14s;
}

.gridline {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(rgba(255, 255, 255, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 100% 132px, 132px 100%;
  mask-image: linear-gradient(180deg, transparent 0%, black 24%, black 78%, transparent 100%);
  opacity: 0.28;
}

.app-shell {
  position: relative;
  z-index: 1;
  width: min(100%, 480px);
  margin: 0 auto;
  padding:
    calc(20px + env(safe-area-inset-top))
    18px
    calc(28px + env(safe-area-inset-bottom));
}

.topbar,
.card-heading,
.profile-grid {
  display: flex;
  align-items: center;
}

.topbar,
.card-heading {
  justify-content: space-between;
}

.topbar {
  margin-bottom: 18px;
}

.eyebrow {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  line-height: 1;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink-3);
}

h1,
h2,
h3 {
  margin: 0;
  font-family: var(--font-display);
  font-stretch: condensed;
  letter-spacing: 0.02em;
}

h1 {
  font-size: clamp(2.2rem, 5vw, 2.6rem);
}

h2 {
  font-size: clamp(2rem, 6vw, 2.6rem);
  line-height: 0.94;
  max-width: 11ch;
}

h3 {
  font-size: 1.36rem;
}

.card {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--card-edge);
  border-radius: var(--radius-xl);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.09), rgba(255, 255, 255, 0.02)),
    var(--card);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.card + .card {
  margin-top: 14px;
}

.hero-card,
.status-card,
.auth-card,
.account-card {
  padding: 20px;
}

.hero-card {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 18px;
}

.hero-copy p:not(.eyebrow),
.section-text,
.helper-text,
.profile-message {
  margin: 12px 0 0;
  line-height: 1.55;
  color: var(--ink-2);
}

.signal-lockup {
  display: grid;
  place-items: center;
  gap: 14px;
}

.ring {
  position: relative;
  width: 148px;
  aspect-ratio: 1;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background:
    conic-gradient(
      from 180deg,
      rgba(124, 156, 255, 0.15),
      rgba(126, 240, 214, 0.92),
      rgba(255, 200, 87, 0.88),
      rgba(255, 127, 109, 0.92),
      rgba(124, 156, 255, 0.15)
    );
  animation: spin 8s linear infinite;
}

.ring::before {
  content: "";
  position: absolute;
  inset: 12px;
  border-radius: 50%;
  background:
    radial-gradient(circle at 30% 30%, rgba(124, 156, 255, 0.22), transparent 40%),
    linear-gradient(180deg, rgba(8, 17, 39, 0.94), rgba(7, 14, 30, 0.98));
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.ring-core {
  position: relative;
  display: grid;
  place-items: center;
  width: 86px;
  aspect-ratio: 1;
  border-radius: 50%;
  background:
    radial-gradient(circle, rgba(126, 240, 214, 0.24), transparent 58%),
    rgba(11, 21, 48, 0.9);
  box-shadow:
    inset 0 0 24px rgba(126, 240, 214, 0.2),
    0 0 24px rgba(126, 240, 214, 0.2);
}

.ring-core span {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.signal-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(10px, 1fr));
  gap: 7px;
  width: min(132px, 100%);
}

.signal-grid span {
  height: 42px;
  border-radius: 999px;
  background: linear-gradient(180deg, var(--accent-2), var(--accent-1));
  opacity: 0.84;
  animation: wave 1.6s ease-in-out infinite;
  transform-origin: bottom center;
}

.signal-grid span:nth-child(2) {
  animation-delay: -0.3s;
}

.signal-grid span:nth-child(3) {
  animation-delay: -0.6s;
}

.signal-grid span:nth-child(4) {
  animation-delay: -0.9s;
}

.install-button,
.button,
.tab-button {
  cursor: pointer;
}

.install-button,
.button {
  min-height: 52px;
  border-radius: 18px;
  font-weight: 700;
  letter-spacing: 0.01em;
}

.install-button {
  padding: 0 16px;
  color: #081122;
  background: linear-gradient(135deg, var(--accent-2), #ffe190);
  box-shadow: 0 12px 32px rgba(255, 200, 87, 0.26);
}

.metric-grid,
.button-stack,
.form-grid {
  display: grid;
  gap: 12px;
}

.metric-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 16px;
}

.metric,
.profile-tile,
.panel {
  padding: 14px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.05);
}

.metric span,
.profile-tile span {
  display: block;
  margin-bottom: 8px;
  color: var(--ink-3);
  font-size: 0.84rem;
}

.metric strong,
.profile-tile strong {
  display: block;
  font-size: 1rem;
  line-height: 1.24;
}

.metric small {
  display: block;
  margin-top: 8px;
  color: var(--ink-3);
  line-height: 1.4;
}

.mini-pill,
.profile-pill {
  padding: 8px 12px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.05);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  white-space: nowrap;
}

.mini-pill-soft {
  color: var(--accent-2);
}

.auth-tabs {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
  margin: 18px 0 12px;
}

.tab-button {
  min-height: 48px;
  border-radius: 16px;
  color: var(--ink-2);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
  font-weight: 700;
  transition: transform 160ms ease, background 160ms ease, color 160ms ease;
}

.tab-button.is-active {
  color: #081122;
  background: linear-gradient(135deg, var(--accent-1), #cafff2);
}

.panel {
  display: block;
}

.panel[hidden] {
  display: none;
}

.panel + .panel {
  margin-top: 12px;
}

.section-title {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent-1);
}

.section-text {
  margin-top: 10px;
}

.field {
  display: grid;
  gap: 9px;
}

.field span {
  color: var(--ink-3);
  font-size: 0.92rem;
}

.field input {
  width: 100%;
  min-height: 54px;
  padding: 0 16px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 18px;
  color: var(--ink-1);
  background: rgba(255, 255, 255, 0.05);
  outline: none;
  transition: border-color 160ms ease, transform 160ms ease;
}

.field input:focus {
  border-color: rgba(126, 240, 214, 0.6);
  transform: translateY(-1px);
}

.button {
  width: 100%;
  padding: 14px 16px;
  transition:
    transform 160ms ease,
    box-shadow 160ms ease,
    opacity 160ms ease;
}

.button:disabled,
.install-button:disabled,
.tab-button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.button:not(:disabled):active,
.install-button:not(:disabled):active,
.tab-button:not(:disabled):active {
  transform: translateY(1px) scale(0.995);
}

.button-primary {
  color: #081122;
  background: linear-gradient(135deg, var(--accent-1), #cafff2);
  box-shadow: 0 18px 42px rgba(126, 240, 214, 0.24);
}

.button-secondary {
  color: var(--ink-1);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.12), rgba(255, 255, 255, 0.04)),
    rgba(17, 31, 77, 0.72);
}

.button-ghost {
  color: var(--ink-2);
  background: transparent;
  border: 1px dashed rgba(255, 255, 255, 0.18);
}

.divider {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 16px 0;
  color: var(--ink-3);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.divider::before,
.divider::after {
  content: "";
  flex: 1;
  height: 1px;
  background: rgba(255, 255, 255, 0.1);
}

.profile-grid {
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
}

.profile-tile {
  flex: 1 1 140px;
}

.profile-tile-wide {
  width: 100%;
  flex-basis: 100%;
}

.profile-pill {
  color: #081122;
  background: linear-gradient(135deg, var(--accent-1), #cafff2);
}

.debug-log {
  margin: 14px 0 0;
  min-height: 160px;
  max-height: 280px;
  overflow: auto;
  padding: 14px;
  border-radius: 20px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(2, 6, 18, 0.82);
  color: #bafee9;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  line-height: 1.55;
  white-space: pre-wrap;
  word-break: break-word;
}

.debug-log::-webkit-scrollbar {
  width: 10px;
}

.debug-log::-webkit-scrollbar-thumb {
  border-radius: 999px;
  background: rgba(126, 240, 214, 0.28);
}

.toast {
  position: fixed;
  left: 50%;
  bottom: calc(18px + env(safe-area-inset-bottom));
  z-index: 9;
  width: min(calc(100% - 32px), 420px);
  padding: 14px 16px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 20px;
  background: rgba(4, 10, 24, 0.92);
  box-shadow: 0 24px 48px rgba(0, 0, 0, 0.35);
  text-align: center;
  line-height: 1.4;
  transform: translate(-50%, 120%);
  opacity: 0;
  transition:
    transform 180ms ease,
    opacity 180ms ease;
}

.toast.is-visible {
  transform: translate(-50%, 0);
  opacity: 1;
}

@keyframes drift {
  0%,
  100% {
    transform: translate3d(0, 0, 0) scale(1);
  }
  50% {
    transform: translate3d(10px, -18px, 0) scale(1.08);
  }
}

@keyframes spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

@keyframes wave {
  0%,
  100% {
    transform: scaleY(0.55);
    opacity: 0.38;
  }
  50% {
    transform: scaleY(1);
    opacity: 0.92;
  }
}

@media (max-width: 390px) {
  .hero-card {
    grid-template-columns: 1fr;
  }

  .signal-lockup {
    justify-items: start;
  }
}

@media (min-width: 700px) {
  .app-shell {
    padding-top: 30px;
  }

  .hero-card,
  .status-card,
  .auth-card,
  .account-card {
    padding: 24px;
  }
}

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