:root {
  color-scheme: dark;
  --bg: #050505;
  --bg-elevated: rgba(255, 255, 255, 0.04);
  --surface: rgba(255, 255, 255, 0.05);
  --surface-strong: rgba(255, 255, 255, 0.08);
  --line: rgba(255, 255, 255, 0.14);
  --line-strong: rgba(255, 255, 255, 0.22);
  --text: rgba(255, 255, 255, 0.94);
  --muted: rgba(255, 255, 255, 0.62);
  --soft: rgba(255, 255, 255, 0.4);
  --shadow: 0 30px 100px rgba(0, 0, 0, 0.45);
  --radius-xl: 32px;
  --radius-lg: 24px;
  --radius-md: 18px;
  --radius-sm: 999px;
  --container: min(1180px, calc(100vw - 2rem));
  --font-main: "MonoLine", "Bahnschrift", "Aptos", "Segoe UI Variable", "Segoe UI", sans-serif;
}

@font-face {
  font-family: "MonoLine";
  src: local("Bahnschrift Light"), local("Bahnschrift"), local("Aptos"), local("Segoe UI Variable Display");
  font-weight: 300 800;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at top, rgba(255, 255, 255, 0.07), transparent 28%),
    radial-gradient(circle at 80% 20%, rgba(255, 255, 255, 0.05), transparent 24%),
    linear-gradient(160deg, #020202 0%, #080808 50%, #030303 100%);
  color: var(--text);
  font-family: var(--font-main);
  letter-spacing: 0.01em;
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.3;
  background-image: linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(circle at center, black 35%, transparent 100%);
}

body[data-background="mesh"]::after,
body[data-background="bloom"]::after,
body[data-background="particles"]::after,
body[data-background="halo"]::after,
body[data-background="veil"]::after,
body[data-background="spotlight"]::after,
body[data-background="strata"]::after,
body[data-background="blueprint"]::after,
body[data-background="drafting"]::after,
body[data-background="contour"]::after,
body[data-background="matrix"]::after {
  content: "";
  position: fixed;
  inset: -15%;
  pointer-events: none;
  background:
    radial-gradient(circle at var(--mx, 50%) var(--my, 50%), rgba(255, 255, 255, 0.09), transparent 18%),
    radial-gradient(circle at 20% 30%, rgba(255, 255, 255, 0.06), transparent 22%),
    radial-gradient(circle at 78% 12%, rgba(255, 255, 255, 0.04), transparent 24%);
  filter: blur(30px);
  animation: ambient-drift 16s ease-in-out infinite alternate;
}

body[data-background="particles"]::after {
  background:
    radial-gradient(circle at var(--mx, 50%) var(--my, 50%), rgba(255, 255, 255, 0.08), transparent 16%),
    radial-gradient(circle at 15% 25%, rgba(255, 255, 255, 0.04), transparent 12%),
    radial-gradient(circle at 68% 76%, rgba(255, 255, 255, 0.05), transparent 16%);
}

body[data-background="spotlight"]::after {
  inset: 0;
  background:
    radial-gradient(circle at 50% 28%, rgba(255, 255, 255, 0.16), transparent 18%),
    radial-gradient(circle at var(--mx, 50%) var(--my, 45%), rgba(255, 255, 255, 0.05), transparent 12%),
    linear-gradient(180deg, transparent 0%, rgba(255, 255, 255, 0.02) 48%, transparent 100%);
  filter: blur(18px);
  animation: none;
}

body[data-background="strata"]::after {
  inset: 0;
  background:
    repeating-linear-gradient(
      180deg,
      rgba(255, 255, 255, 0.045) 0,
      rgba(255, 255, 255, 0.045) 1px,
      transparent 1px,
      transparent 72px
    ),
    linear-gradient(120deg, rgba(255, 255, 255, 0.05), transparent 28%, rgba(255, 255, 255, 0.03) 60%, transparent);
  opacity: 0.5;
  filter: blur(0);
  animation: strata-shift 18s linear infinite;
}

body[data-background="blueprint"]::after {
  inset: 0;
  background:
    linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    radial-gradient(circle at 14% 18%, rgba(255, 255, 255, 0.08), transparent 16%),
    radial-gradient(circle at 84% 12%, rgba(255, 255, 255, 0.06), transparent 18%);
  background-size: 120px 120px, 120px 120px, auto, auto;
  opacity: 0.6;
  filter: blur(0);
  animation: blueprint-pan 24s linear infinite;
}

body[data-background="drafting"]::after {
  inset: 0;
  background:
    linear-gradient(rgba(255, 255, 255, 0.018) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.018) 1px, transparent 1px),
    linear-gradient(180deg, transparent 0%, rgba(255, 255, 255, 0.04) 52%, transparent 100%);
  background-size: 88px 88px, 88px 88px, auto;
  opacity: 0.55;
  filter: blur(0);
  animation: blueprint-pan 18s linear infinite;
}

body[data-background="contour"]::after {
  inset: 0;
  background:
    radial-gradient(circle at 22% 24%, rgba(255, 255, 255, 0.08), transparent 18%),
    radial-gradient(circle at 76% 18%, rgba(255, 255, 255, 0.06), transparent 18%),
    repeating-radial-gradient(circle at 50% 50%, rgba(255, 255, 255, 0.032) 0 1px, transparent 1px 34px);
  opacity: 0.45;
  filter: blur(0);
  animation: ambient-drift 22s ease-in-out infinite alternate;
}

body[data-background="matrix"]::after {
  inset: 0;
  background:
    repeating-linear-gradient(
      90deg,
      rgba(255, 255, 255, 0.022) 0,
      rgba(255, 255, 255, 0.022) 1px,
      transparent 1px,
      transparent 96px
    ),
    repeating-linear-gradient(
      180deg,
      rgba(255, 255, 255, 0.018) 0,
      rgba(255, 255, 255, 0.018) 1px,
      transparent 1px,
      transparent 96px
    ),
    radial-gradient(circle at var(--mx, 50%) var(--my, 50%), rgba(255, 255, 255, 0.06), transparent 13%);
  opacity: 0.55;
  filter: blur(0);
  animation: none;
}

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

button,
a.button {
  font: inherit;
}

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

.site-shell {
  width: var(--container);
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.site-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  width: var(--container);
  margin: 0 auto;
  padding: 1.25rem 0;
  position: sticky;
  top: 0;
  z-index: 8;
  backdrop-filter: blur(16px);
}

.nav-brand {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.28em;
  color: var(--muted);
}

.nav-links {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  display: grid;
  grid-template-columns: repeat(3, max-content);
  align-items: center;
  justify-content: center;
  gap: 1.2rem;
}

.nav-links a:nth-child(1) {
  justify-self: end;
}

.nav-links a:nth-child(2) {
  justify-self: center;
}

.nav-links a:nth-child(3) {
  justify-self: start;
}

.nav-auth {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  flex-wrap: wrap;
  justify-content: flex-end;
  position: relative;
}

.nav-auth .button {
  min-width: 0;
  padding: 0.78rem 1.05rem;
}

.account-menu {
  position: relative;
}

.account-menu-toggle {
  min-width: 0;
}

.account-menu-toggle span {
  max-width: 16ch;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.account-menu-panel {
  position: absolute;
  top: calc(100% + 0.7rem);
  right: 0;
  width: min(360px, calc(100vw - 1.5rem));
  padding: 1rem;
  display: grid;
  gap: 0.95rem;
  z-index: 12;
  opacity: 0;
  transform: translateY(-0.45rem) scale(0.985);
  transform-origin: top right;
  transition: opacity 180ms ease, transform 180ms ease;
  background: linear-gradient(180deg, rgba(8, 8, 8, 0.82), rgba(4, 4, 4, 0.8));
  border-color: rgba(255, 255, 255, 0.34);
  -webkit-backdrop-filter: blur(36px) saturate(1.15) brightness(0.68);
  backdrop-filter: blur(36px) saturate(1.15) brightness(0.68);
}

.account-menu-panel::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: rgba(0, 0, 0, 0.44);
  pointer-events: none;
  z-index: 0;
}

.account-menu-panel > * {
  position: relative;
  z-index: 1;
}

.account-menu-panel.surface-panel {
  background: linear-gradient(180deg, rgba(8, 8, 8, 0.82), rgba(4, 4, 4, 0.8));
  border-color: rgba(255, 255, 255, 0.34);
  -webkit-backdrop-filter: blur(36px) saturate(1.15) brightness(0.68);
  backdrop-filter: blur(36px) saturate(1.15) brightness(0.68);
  box-shadow: 0 28px 72px rgba(0, 0, 0, 0.62);
}

.account-menu-panel[hidden] {
  display: none !important;
}

.account-menu-panel.account-menu-panel-visible {
  opacity: 1;
  transform: translateY(0) scale(1);
}

.account-menu-section {
  display: grid;
  gap: 0.5rem;
}

.account-menu-section strong {
  font-size: 1rem;
  font-weight: 500;
}

.account-menu-section p {
  font-size: 0.94rem;
  line-height: 1.65;
}

.account-menu-meta {
  display: flex;
  gap: 0.45rem;
  flex-wrap: wrap;
}

.quick-chip {
  display: inline-flex;
  align-items: center;
  padding: 0.28rem 0.6rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.045);
  color: var(--muted);
  font-size: 0.74rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.account-menu-actions {
  display: grid;
  gap: 0.65rem;
}

.account-menu-actions .button {
  width: 100%;
}

.nav-links a {
  padding: 0.7rem 1rem;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  color: var(--muted);
  transition: color 180ms ease, border-color 180ms ease, background 180ms ease, transform 180ms ease;
}

.nav-links a:hover,
.nav-links a:focus-visible {
  color: var(--text);
  border-color: var(--line);
  background: rgba(255, 255, 255, 0.04);
  transform: translateY(-1px);
}

.surface-panel {
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.03));
  box-shadow: var(--shadow);
  border-radius: var(--radius-xl);
  backdrop-filter: blur(20px);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.75rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--soft);
}

.eyebrow::before {
  content: "";
  width: 2.5rem;
  height: 1px;
  background: var(--line-strong);
}

h1,
h2,
h3 {
  margin: 0;
  font-weight: 500;
  letter-spacing: -0.03em;
  line-height: 0.95;
}

p {
  margin: 0;
  color: var(--muted);
  line-height: 1.75;
}

.lede {
  max-width: 62ch;
  font-size: clamp(1rem, 1.4vw, 1.12rem);
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
}

.button {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 150px;
  padding: 0.95rem 1.35rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease, color 180ms ease,
    box-shadow 180ms ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-2px);
  border-color: rgba(255, 255, 255, 0.3);
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.28);
}

.button-primary {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.94), rgba(255, 255, 255, 0.8));
  color: #050505;
}

.button-secondary {
  color: var(--text);
  background: rgba(255, 255, 255, 0.04);
}

.button-ghost {
  color: var(--muted);
  background: transparent;
}

.meta-list {
  display: grid;
  gap: 1rem;
}

.meta-item {
  padding: 1rem 0;
  border-top: 1px solid var(--line);
}

.meta-label {
  display: block;
  margin-bottom: 0.35rem;
  text-transform: uppercase;
  letter-spacing: 0.22em;
  font-size: 0.72rem;
  color: var(--soft);
}

.cursor-glow {
  position: fixed;
  width: 340px;
  height: 340px;
  left: 0;
  top: 0;
  border-radius: 50%;
  pointer-events: none;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.12), rgba(255, 255, 255, 0.04) 40%, transparent 68%);
  transform: translate3d(-50%, -50%, 0);
  opacity: 0;
  z-index: 0;
  transition: opacity 240ms ease;
}

body[data-cursor-glow="true"] .cursor-glow {
  opacity: 1;
}

body[data-cursor-style="ring"] .cursor-glow {
  width: 220px;
  height: 220px;
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.2);
  box-shadow: inset 0 0 36px rgba(255, 255, 255, 0.08), 0 0 40px rgba(255, 255, 255, 0.04);
}

body[data-cursor-style="bar"] .cursor-glow {
  width: 440px;
  height: 120px;
  border-radius: 999px;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.08), transparent);
  filter: blur(12px);
}

body[data-cursor-style="spot"] .cursor-glow {
  width: 180px;
  height: 180px;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.16), rgba(255, 255, 255, 0.05) 45%, transparent 70%);
}

body[data-cursor-style="cross"] .cursor-glow {
  width: 140px;
  height: 140px;
  background:
    linear-gradient(90deg, transparent 49.4%, rgba(255, 255, 255, 0.22) 49.5%, rgba(255, 255, 255, 0.22) 50.5%, transparent 50.6%),
    linear-gradient(180deg, transparent 49.4%, rgba(255, 255, 255, 0.22) 49.5%, rgba(255, 255, 255, 0.22) 50.5%, transparent 50.6%);
  box-shadow: 0 0 32px rgba(255, 255, 255, 0.08);
}

.toast-stack {
  position: fixed;
  right: 1.25rem;
  bottom: 1.25rem;
  display: grid;
  gap: 0.75rem;
  z-index: 20;
}

.toast {
  padding: 1rem 1.1rem;
  min-width: 260px;
  border-radius: 18px;
  border: 1px solid var(--line);
  background: rgba(12, 12, 12, 0.82);
  backdrop-filter: blur(18px);
  box-shadow: 0 18px 48px rgba(0, 0, 0, 0.36);
  animation: toast-in 220ms ease forwards;
}

.toast strong {
  display: block;
  margin-bottom: 0.25rem;
  font-weight: 600;
  color: var(--text);
}

.toast p {
  color: var(--muted);
  line-height: 1.5;
  font-size: 0.94rem;
}

.reveal {
  opacity: 0;
  transform: translateY(18px);
  animation: fade-up 700ms cubic-bezier(0.2, 0.7, 0.1, 1) forwards;
}

.reveal-delay-1 {
  animation-delay: 120ms;
}

.reveal-delay-2 {
  animation-delay: 220ms;
}

.reveal-delay-3 {
  animation-delay: 320ms;
}

.ambient-grid {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background:
    linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.02), transparent),
    linear-gradient(transparent, rgba(255, 255, 255, 0.015), transparent);
  mix-blend-mode: screen;
  animation: shimmer 12s linear infinite;
}

.particle-field {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}

.particle-field span {
  position: absolute;
  display: block;
  width: 3px;
  height: 3px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.25);
  animation: particle-rise linear infinite;
}

@keyframes ambient-drift {
  from {
    transform: translate3d(-1%, -1%, 0) scale(1);
  }
  to {
    transform: translate3d(1%, 2%, 0) scale(1.03);
  }
}

@keyframes shimmer {
  from {
    transform: translateY(-2%) rotate(0.001deg);
  }
  to {
    transform: translateY(2%);
  }
}

@keyframes fade-up {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes toast-in {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes toast-out {
  to {
    opacity: 0;
    transform: translateY(12px);
  }
}

@keyframes particle-rise {
  from {
    transform: translate3d(0, 0, 0) scale(0.9);
    opacity: 0;
  }
  15% {
    opacity: 1;
  }
  to {
    transform: translate3d(0, -110vh, 0) scale(1.3);
    opacity: 0;
  }
}

@keyframes strata-shift {
  from {
    transform: translateY(0);
  }
  to {
    transform: translateY(72px);
  }
}

@keyframes blueprint-pan {
  from {
    background-position: 0 0, 0 0, 0 0, 0 0;
  }
  to {
    background-position: 120px 120px, 120px 120px, 0 0, 0 0;
  }
}

@media (max-width: 900px) {
  .site-nav {
    width: calc(100vw - 1.5rem);
    padding: 1rem 0 0;
    position: relative;
    align-items: flex-start;
    flex-direction: column;
    display: flex;
  }

  .nav-links {
    position: static;
    transform: none;
    width: auto;
    display: flex;
    gap: 0.9rem;
    flex-wrap: wrap;
    justify-content: flex-start;
  }

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

  .account-menu-panel {
    left: 0;
    right: auto;
    width: min(360px, calc(100vw - 1.5rem));
  }

  .site-shell {
    width: calc(100vw - 1.5rem);
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}