:root {
  --gold-deeper: #8a6300;
  --gold-dark: #c9970a;
  --gold: #f5c518;
  --gold-light: #ffe066;
  --gold-gradient: linear-gradient(135deg, var(--gold-deeper), var(--gold) 45%, var(--gold-light));
  --bg-base: #080810;
  --bg-card: rgba(19, 19, 26, 0.9);
  --text-primary: #f0edff;
  --text-secondary: #a89dc0;
  --text-muted: #6b6080;
  --text-disabled: #3d3550;
  --success: #34d399;
  --error: #f87171;
  --ease-out-quart: cubic-bezier(0.25, 1, 0.5, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  height: 100%;
  background: var(--bg-base);
  color: var(--text-primary);
  font-family: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

::selection {
  background: rgba(245, 197, 24, 0.3);
  color: #fff;
}

:focus-visible {
  outline: 2px solid rgba(245, 197, 24, 0.5);
  outline-offset: 2px;
  border-radius: 4px;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ── Ambient background ── */

.bg-parallax {
  position: fixed;
  inset: -10%;
  z-index: 0;
  pointer-events: none;
  will-change: transform;
}

.bg-glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(10px);
}

.bg-glow--one {
  width: 60vmax;
  height: 60vmax;
  top: -10vmax;
  left: -5vmax;
  background: radial-gradient(circle, rgba(138, 99, 0, 0.35) 0%, transparent 70%);
  animation: drift-one 22s var(--ease-out-quart) infinite;
}

.bg-glow--two {
  width: 50vmax;
  height: 50vmax;
  bottom: -8vmax;
  right: -2vmax;
  background: radial-gradient(circle, rgba(245, 197, 24, 0.22) 0%, transparent 70%);
  animation: drift-two 26s var(--ease-out-quart) infinite;
}

@keyframes drift-one {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(4vmax, 3vmax) scale(1.08); }
}

@keyframes drift-two {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(-3vmax, -4vmax) scale(1.06); }
}

.bg-grid {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0.05;
  z-index: 0;
  pointer-events: none;
}

.bg-grid line {
  stroke: var(--gold);
  stroke-width: 0.5;
}

.bg-grid__road {
  stroke: var(--gold);
  stroke-width: 1;
  fill: none;
  opacity: 0.7;
  stroke-dasharray: 1;
  stroke-dashoffset: 1;
  animation: road-draw 2.4s var(--ease-out-quart) 0.3s forwards;
}

@keyframes road-draw {
  to { stroke-dashoffset: 0; }
}

/* Subtle film-grain texture for a premium, non-flat black */
.bg-grain {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0.035;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

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

.particle {
  position: absolute;
  bottom: -10px;
  width: var(--size, 3px);
  height: var(--size, 3px);
  border-radius: 50%;
  background: var(--gold-light);
  opacity: 0;
  animation: particle-drift var(--duration, 12s) linear var(--start-delay, 0s) infinite;
  will-change: transform, opacity;
}

@keyframes particle-drift {
  0% { transform: translateY(0) translateX(0); opacity: 0; }
  10% { opacity: var(--peak-opacity, 0.5); }
  90% { opacity: var(--peak-opacity, 0.5); }
  100% { transform: translateY(-110vh) translateX(var(--drift-x, 20px)); opacity: 0; }
}

/* ── Layout ── */

.page {
  position: relative;
  z-index: 1;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 6rem 1.5rem 3rem;
  max-width: 640px;
  margin: 0 auto;
}

.hero-logo {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
}

.hero-logo__glow {
  position: absolute;
  inset: 5% 12%;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(245, 197, 24, 0.35), transparent 70%);
  filter: blur(20px);
  animation: icon-breathe 3.4s ease-in-out infinite;
}

@keyframes icon-breathe {
  0%, 100% { transform: scale(0.92); opacity: 0.5; }
  50% { transform: scale(1.06); opacity: 1; }
}

.hero-logo__img {
  position: relative;
  width: min(88vw, 520px);
  height: auto;
  filter: drop-shadow(0 8px 32px rgba(245, 197, 24, 0.2));
}

.headline {
  margin: 2.75rem 0 0;
  font-size: clamp(1.5rem, 4vw, 2.1rem);
  font-weight: 700;
  color: var(--text-primary);
  text-wrap: balance;
}

.subhead {
  margin: 0.9rem 0 0;
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text-secondary);
  max-width: 480px;
  text-wrap: pretty;
}

/* ── Signup form ── */

.signup {
  width: 100%;
  max-width: 420px;
  margin-top: 2.5rem;
}

.signup__field {
  display: flex;
  gap: 0.5rem;
  background: var(--bg-card);
  border: 1px solid rgba(245, 197, 24, 0.15);
  border-radius: 1rem;
  padding: 0.4rem;
  transition: border-color 200ms var(--ease-out-quart), box-shadow 200ms var(--ease-out-quart);
}

.signup__field:focus-within {
  border-color: rgba(245, 197, 24, 0.4);
  box-shadow: 0 0 0 3px rgba(245, 197, 24, 0.1);
}

.signup__field input {
  flex: 1;
  min-width: 0;
  background: transparent;
  border: none;
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.95rem;
  padding: 0.7rem 0.9rem;
}

.signup__field input::placeholder {
  color: var(--text-muted);
}

.signup__field input:focus {
  outline: none;
}

.signup__field button {
  position: relative;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  min-width: 120px;
  border: none;
  border-radius: 0.75rem;
  padding: 0.7rem 1.25rem;
  font-family: inherit;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--bg-base);
  background: var(--gold-gradient);
  cursor: pointer;
  overflow: hidden;
  transition: box-shadow 200ms var(--ease-out-quart), transform 150ms var(--ease-out-quart);
  box-shadow: 0 4px 20px rgba(245, 197, 24, 0.3);
}

.signup__field button::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(115deg, transparent 30%, rgba(255, 255, 255, 0.5) 50%, transparent 70%);
  transform: translateX(-120%);
  transition: transform 500ms var(--ease-out-quart);
}

.signup__field button:hover::after {
  transform: translateX(120%);
}

.signup__field button:hover {
  box-shadow: 0 6px 28px rgba(245, 197, 24, 0.45);
}

.signup__field button:active {
  transform: scale(0.97);
  transition-duration: 80ms;
}

.signup__field button:disabled {
  cursor: default;
  opacity: 0.85;
}

.btn-spinner {
  display: none;
  width: 16px;
  height: 16px;
  animation: spin 0.7s linear infinite;
  color: var(--bg-base);
}

.signup.is-loading .btn-label {
  display: none;
}

.signup.is-loading .btn-spinner {
  display: block;
}

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

.signup__message {
  min-height: 1.4em;
  margin: 0.75rem 0 0;
  font-size: 0.85rem;
  font-weight: 500;
  opacity: 0;
  transform: translateY(4px);
  transition: opacity 250ms var(--ease-out-quart), transform 250ms var(--ease-out-quart), color 200ms ease;
}

.signup__message:not(:empty) {
  opacity: 1;
  transform: translateY(0);
}

.signup__message[data-state='success'] {
  color: var(--success);
}

.signup__message[data-state='error'] {
  color: var(--error);
}

/* ── Footer ── */

.footer {
  margin-top: 3.5rem;
  font-size: 0.75rem;
  color: var(--text-disabled);
}

/* ── Entrance animation ── */

.reveal {
  opacity: 0;
  transform: translateY(14px);
  animation: reveal-in 0.8s var(--ease-out-quart) forwards;
  animation-delay: var(--delay, 0ms);
}

@keyframes reveal-in {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (prefers-reduced-motion: reduce) {
  .reveal {
    animation: none;
    opacity: 1;
    transform: none;
  }
  .bg-glow,
  .hero-logo__glow,
  .particle,
  .btn-spinner {
    animation: none !important;
  }
  .bg-grid__road {
    stroke-dashoffset: 0;
    animation: none;
  }
  .bg-parallax {
    transform: none !important;
  }
}

@media (max-width: 480px) {
  .signup__field {
    flex-direction: column;
  }
  .signup__field button {
    width: 100%;
  }
}