*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --slate-50: #f8fafc;
  --slate-100: #f1f5f9;
  --slate-300: #cbd5e1;
  --slate-400: #94a3b8;
  --slate-500: #64748b;
  --slate-700: #334155;
  --slate-800: #1e293b;
  --slate-900: #0f172a;
  --slate-950: #020617;
  --emerald-400: #34d399;
  --emerald-500: #10b981;
  --teal-300: #5eead4;
  --amber-300: #fcd34d;
  --amber-400: #fbbf24;
  --amber-500: #f59e0b;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Inter", system-ui, -apple-system, sans-serif;
  background: var(--slate-950);
  color: var(--slate-100);
  -webkit-font-smoothing: antialiased;
  line-height: 1.6;
}

.container {
  max-width: 72rem;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ── Header ─────────────────────────────────────────── */

.header {
  position: fixed;
  top: 0;
  z-index: 50;
  width: 100%;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  background: rgba(2, 6, 23, 0.8);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
}

.header-inner {
  display: flex;
  height: 4rem;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  color: white;
  font-size: 1.125rem;
  font-weight: 600;
}

.logo-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  border-radius: 0.5rem;
  background: rgba(16, 185, 129, 0.1);
  color: var(--emerald-400);
}

.logo-icon-sm {
  width: 1.5rem;
  height: 1.5rem;
  border-radius: 0.375rem;
}

.badge {
  border-radius: 9999px;
  padding: 0.25rem 0.75rem;
  font-size: 0.75rem;
  font-weight: 500;
}

.badge-coming-soon {
  border: 1px solid rgba(16, 185, 129, 0.2);
  background: rgba(16, 185, 129, 0.1);
  color: var(--emerald-400);
}

/* ── Hero ───────────────────────────────────────────── */

.hero {
  position: relative;
  overflow: hidden;
  padding: 8rem 0 5rem;
}

.hero-glow {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
  filter: blur(80px);
}

.hero-glow-1 {
  width: 600px;
  height: 600px;
  top: 10%;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(16, 185, 129, 0.05);
}

.hero-glow-2 {
  width: 400px;
  height: 400px;
  top: 25%;
  right: 15%;
  background: rgba(245, 158, 11, 0.04);
}

.hero-content {
  position: relative;
  max-width: 56rem;
  margin: 0 auto;
  text-align: center;
}

.alert-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  border-radius: 9999px;
  border: 1px solid rgba(245, 158, 11, 0.2);
  background: rgba(245, 158, 11, 0.1);
  padding: 0.375rem 1rem;
  font-size: 0.875rem;
  color: var(--amber-300);
  margin-bottom: 1.5rem;
}

.ping-dot {
  position: relative;
  display: inline-flex;
  width: 0.5rem;
  height: 0.5rem;
}

.ping-ring {
  position: absolute;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background: var(--amber-400);
  opacity: 0.75;
  animation: ping 1.5s cubic-bezier(0, 0, 0.2, 1) infinite;
}

.ping-core {
  position: relative;
  display: inline-flex;
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: var(--amber-400);
}

@keyframes ping {
  75%,
  100% {
    transform: scale(2);
    opacity: 0;
  }
}

.hero h1 {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.025em;
  color: white;
  margin-bottom: 1.5rem;
}

.gradient-text {
  background: linear-gradient(to right, var(--emerald-400), var(--teal-300));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  max-width: 40rem;
  margin: 0 auto 2.5rem;
  font-size: 1.125rem;
  line-height: 1.75;
  color: var(--slate-400);
}

.hero-note {
  margin-top: 1rem;
  font-size: 0.875rem;
  color: var(--slate-500);
}

/* ── Signup Form ────────────────────────────────────── */

.signup-form {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  max-width: 28rem;
  margin: 0 auto;
}

.email-input {
  flex: 1;
  padding: 0.75rem 1rem;
  border-radius: 0.75rem;
  border: 1px solid var(--slate-700);
  background: rgba(30, 41, 59, 0.5);
  color: white;
  font-size: 1rem;
  font-family: inherit;
  outline: none;
  transition: border-color 0.15s;
}

.email-input::placeholder {
  color: var(--slate-500);
}

.email-input:focus {
  border-color: var(--emerald-500);
  box-shadow: 0 0 0 1px var(--emerald-500);
}

.btn {
  padding: 0.75rem 1.5rem;
  border-radius: 0.75rem;
  border: none;
  font-size: 1rem;
  font-weight: 500;
  font-family: inherit;
  cursor: pointer;
  transition: background-color 0.15s;
}

.btn-primary {
  background: var(--emerald-500);
  color: white;
}

.btn-primary:hover {
  background: var(--emerald-400);
}

.btn-primary:focus-visible {
  outline: 2px solid var(--emerald-500);
  outline-offset: 2px;
}

.success-message {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  border-radius: 0.75rem;
  border: 1px solid rgba(16, 185, 129, 0.2);
  background: rgba(16, 185, 129, 0.1);
  padding: 1rem 1.5rem;
  color: var(--emerald-400);
}

.success-message[hidden] {
  display: none;
}

/* ── Features ───────────────────────────────────────── */

.features {
  padding: 6rem 0;
}

.section-header {
  text-align: center;
  margin-bottom: 4rem;
}

.section-header h2 {
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  font-weight: 700;
  color: white;
  margin-bottom: 1rem;
}

.section-header p {
  max-width: 40rem;
  margin: 0 auto;
  font-size: 1.125rem;
  color: var(--slate-400);
}

.features-grid {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: 1fr;
}

.feature-card {
  padding: 1.5rem;
  border-radius: 1rem;
  border: 1px solid var(--slate-800);
  background: rgba(15, 23, 42, 0.5);
  transition:
    border-color 0.2s,
    background-color 0.2s;
}

.feature-card:hover {
  border-color: var(--slate-700);
  background: var(--slate-900);
}

.feature-icon {
  display: inline-flex;
  padding: 0.75rem;
  border-radius: 0.75rem;
  background: rgba(16, 185, 129, 0.1);
  color: var(--emerald-400);
  margin-bottom: 1rem;
  transition: background-color 0.2s;
}

.feature-card:hover .feature-icon {
  background: rgba(16, 185, 129, 0.2);
}

.feature-card h3 {
  font-size: 1.125rem;
  font-weight: 600;
  color: white;
  margin-bottom: 0.5rem;
}

.feature-card p {
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--slate-400);
}

/* ── Platforms ──────────────────────────────────────── */

.platforms {
  padding: 6rem 0;
  border-top: 1px solid var(--slate-800);
  border-bottom: 1px solid var(--slate-800);
  background: rgba(15, 23, 42, 0.3);
}

.platforms-grid {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: 1fr;
}

.platform-card {
  padding: 1.5rem;
  border-radius: 1rem;
  border: 1px solid var(--slate-700);
  background: rgba(30, 41, 59, 0.5);
  text-align: center;
  transition: border-color 0.2s;
}

.platform-card:hover {
  border-color: var(--slate-600);
}

.platform-card-muted {
  border-color: var(--slate-800);
  background: rgba(15, 23, 42, 0.3);
}

.platform-name {
  font-size: 1.5rem;
  font-weight: 700;
  color: white;
  margin-bottom: 0.75rem;
}

.platform-badge {
  display: inline-block;
  border-radius: 9999px;
  padding: 0.25rem 0.75rem;
  font-size: 0.75rem;
  font-weight: 500;
  margin-bottom: 0.75rem;
}

.platform-badge-active {
  background: rgba(16, 185, 129, 0.1);
  color: var(--emerald-400);
}

.platform-badge-muted {
  border: 1px solid var(--slate-700);
  color: var(--slate-500);
}

.platform-card p {
  font-size: 0.875rem;
  color: var(--slate-400);
}

/* ── CTA ────────────────────────────────────────────── */

.cta {
  padding: 6rem 0;
}

.cta-card {
  max-width: 56rem;
  margin: 0 auto;
  padding: 3rem;
  border-radius: 1.5rem;
  border: 1px solid var(--slate-800);
  background: linear-gradient(to bottom, var(--slate-900), var(--slate-950));
  text-align: center;
}

.cta-card h2 {
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  font-weight: 700;
  color: white;
  margin-bottom: 1rem;
}

.cta-card > p {
  max-width: 32rem;
  margin: 0 auto 2rem;
  font-size: 1.125rem;
  color: var(--slate-400);
}

/* ── Footer ─────────────────────────────────────────── */

.footer {
  border-top: 1px solid var(--slate-800);
  padding: 3rem 0;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--slate-300);
}

.footer p {
  font-size: 0.875rem;
  color: var(--slate-500);
}

/* ── Responsive ─────────────────────────────────────── */

@media (min-width: 640px) {
  .signup-form {
    flex-direction: row;
  }

  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .platforms-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-inner {
    flex-direction: row;
    justify-content: space-between;
  }

  .cta-card {
    padding: 4rem;
  }
}

@media (min-width: 1024px) {
  .features-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .platforms-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}