:root {
  --ink: #f4f2ef;
  --ink-dim: #b9b5c4;
  --ink-faint: #7d7a8a;
  --ground: #07070a;
  --ground-raised: #0f0e14;
  --violet: #8b5cf6;
  --cyan: #22d3ee;
  --coral: #fb7f4d;
  --line: rgba(244, 242, 239, 0.1);
  --shadow-color: 250 30% 3%;
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  color-scheme: dark;
}

body {
  margin: 0;
  min-height: 100svh;
  background: var(--ground);
  color: var(--ink);
  font-family: "DM Sans", -apple-system, sans-serif;
  overflow-x: hidden;
  position: relative;
}

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

/* Grain texture */
.grain {
  position: fixed;
  inset: 0;
  z-index: 30;
  pointer-events: none;
  opacity: 0.045;
  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");
}

/* Gradient mesh */
.mesh {
  position: fixed;
  inset: 0;
  z-index: 0;
  overflow: hidden;
}

.blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  opacity: 0.55;
  will-change: transform;
}

.blob--violet {
  width: 42vw;
  height: 42vw;
  top: -8vw;
  left: -6vw;
  background: radial-gradient(circle at 35% 35%, var(--violet), transparent 70%);
  animation: drift-a 26s var(--ease-out-expo) infinite alternate;
}

.blob--cyan {
  width: 36vw;
  height: 36vw;
  bottom: -10vw;
  right: -8vw;
  background: radial-gradient(circle at 60% 60%, var(--cyan), transparent 70%);
  animation: drift-b 32s var(--ease-out-expo) infinite alternate;
}

.blob--coral {
  width: 26vw;
  height: 26vw;
  top: 30%;
  left: 45%;
  background: radial-gradient(circle at 50% 50%, var(--coral), transparent 72%);
  opacity: 0.35;
  animation: drift-c 22s ease-in-out infinite alternate;
}

@keyframes drift-a {
  from { transform: translate(0, 0) scale(1); }
  to { transform: translate(6vw, 8vw) scale(1.12); }
}

@keyframes drift-b {
  from { transform: translate(0, 0) scale(1); }
  to { transform: translate(-7vw, -5vw) scale(1.08); }
}

@keyframes drift-c {
  from { transform: translate(-4vw, -2vw) scale(0.9); }
  to { transform: translate(3vw, 4vw) scale(1.05); }
}

@media (prefers-reduced-motion: reduce) {
  .blob {
    animation: none !important;
  }
}

/* Layout */
.page {
  position: relative;
  z-index: 1;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  padding: 2.25rem clamp(1.5rem, 5vw, 4rem);
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.wordmark {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: "Syne", sans-serif;
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.wordmark__mark {
  color: var(--violet);
  flex-shrink: 0;
}

.status-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.45rem 0.85rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(244, 242, 239, 0.04);
  backdrop-filter: blur(12px);
  font-size: 0.78rem;
  letter-spacing: 0.02em;
  color: var(--ink-dim);
}

.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 0 0 rgba(34, 211, 238, 0.6);
  animation: pulse 2.4s ease-out infinite;
  flex-shrink: 0;
}

@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(34, 211, 238, 0.55); }
  70% { box-shadow: 0 0 0 8px rgba(34, 211, 238, 0); }
  100% { box-shadow: 0 0 0 0 rgba(34, 211, 238, 0); }
}

/* Hero */
.hero {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: 1.75rem;
  padding: 3rem 1rem;
}

.headline {
  margin: 0;
  font-family: "Syne", sans-serif;
  font-weight: 700;
  font-size: clamp(2.75rem, 8vw, 5.5rem);
  line-height: 0.98;
  letter-spacing: -0.02em;
  color: var(--ink);
  opacity: 0;
  transform: translateY(10px);
  animation: rise 0.9s var(--ease-out-expo) 0.05s forwards;
}

.pitch {
  margin: 0;
  max-width: 34rem;
  text-wrap: balance;
  font-size: clamp(1rem, 1.6vw, 1.2rem);
  line-height: 1.6;
  color: var(--ink-dim);
  opacity: 0;
  transform: translateY(10px);
  animation: rise 0.9s var(--ease-out-expo) 0.16s forwards;
}

@keyframes rise {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Waveform */
.waveform {
  width: min(240px, 60vw);
  height: 28px;
  opacity: 0;
  animation: fade-in 0.9s var(--ease-out-expo) 0.3s forwards;
}

@keyframes fade-in {
  to { opacity: 1; }
}

.waveform__bars rect {
  fill: var(--ink-faint);
}

/* Signup */
.signup {
  width: 100%;
  max-width: 26rem;
  opacity: 0;
  transform: translateY(10px);
  animation: rise 0.9s var(--ease-out-expo) 0.4s forwards;
}

.signup__field {
  display: flex;
  align-items: stretch;
  gap: 0.5rem;
  padding: 0.4rem;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: rgba(244, 242, 239, 0.05);
  backdrop-filter: blur(16px);
  box-shadow:
    0 1px 0 rgba(244, 242, 239, 0.06) inset,
    0 20px 40px -20px hsl(var(--shadow-color) / 0.9);
  transition: border-color 0.25s var(--ease-out-expo), box-shadow 0.25s var(--ease-out-expo);
}

.signup__field:focus-within {
  border-color: rgba(139, 92, 246, 0.55);
  box-shadow:
    0 0 0 3px rgba(139, 92, 246, 0.18),
    0 20px 40px -20px hsl(var(--shadow-color) / 0.9);
}

.signup input {
  flex: 1;
  min-width: 0;
  background: transparent;
  border: none;
  outline: none;
  color: var(--ink);
  font-family: "DM Sans", sans-serif;
  font-size: 0.95rem;
  padding: 0.65rem 0.75rem;
}

.signup input::placeholder {
  color: var(--ink-faint);
}

.signup input:disabled {
  opacity: 0.5;
}

.signup button {
  position: relative;
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0 1.15rem;
  border: none;
  border-radius: 10px;
  background: var(--ink);
  color: var(--ground);
  font-family: "DM Sans", sans-serif;
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  transition: transform 0.2s var(--ease-out-expo), opacity 0.2s var(--ease-out-expo);
}

.signup button:hover:not(:disabled) {
  transform: translateY(-1px);
}

.signup button:active:not(:disabled) {
  transform: translateY(0);
}

.signup button:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.signup button:disabled {
  cursor: default;
  opacity: 0.75;
}

.btn-spinner {
  display: none;
  width: 13px;
  height: 13px;
  border-radius: 50%;
  border: 2px solid rgba(7, 7, 10, 0.25);
  border-top-color: var(--ground);
  animation: spin 0.7s linear infinite;
}

.signup.is-loading .btn-label {
  opacity: 0.6;
}

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

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

.signup__message {
  min-height: 1.3em;
  margin: 0.7rem 0 0;
  font-size: 0.85rem;
  color: var(--ink-faint);
  transition: color 0.2s ease;
}

.signup.is-error .signup__message {
  color: var(--coral);
}

.signup.is-success .signup__message {
  color: var(--cyan);
}

.signup.is-success .signup__field {
  opacity: 0.6;
  pointer-events: none;
}

/* Footer */
.footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-top: 1.5rem;
  font-size: 0.8rem;
  color: var(--ink-faint);
}

.footer a {
  color: var(--ink-faint);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.footer a:hover {
  color: var(--ink-dim);
  border-color: var(--line);
}

@media (max-width: 560px) {
  .status-chip span:last-child {
    display: none;
  }
  .footer {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.35rem;
  }
}