:root {
  --ink: #fefbff;
  --muted: #c7b8ff;
  --panel: #0b0a14;
  --surface: #111024;
  --accent: #ff4f7b;
  --accent-strong: #a435f0;
  --border: #261f3f;
  --shadow: 0 18px 36px rgba(0, 0, 0, 0.45);
  --glow: 0 0 28px rgba(255, 79, 123, 0.5);
  font-family: "Inter", "Segoe UI", system-ui, -apple-system, sans-serif;
  color: var(--ink);
  background: radial-gradient(circle at 20% 20%, #1b1235, #090815 45%),
    radial-gradient(circle at 80% 15%, rgba(164, 53, 240, 0.25), transparent 30%),
    radial-gradient(circle at 60% 80%, rgba(255, 79, 123, 0.18), transparent 38%);
}

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

body {
  margin: 0;
  min-height: 100vh;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, #0a0715 0%, #140f2d 50%, #0a0715 100%);
}

.app-shell {
  width: min(1100px, 94vw);
  margin: 2rem auto;
}

.panel {
  background: linear-gradient(145deg, #0f0c23, #0b0a14);
  border: 1px solid var(--border);
  border-radius: 18px;
  box-shadow: var(--shadow);
  padding: 1.5rem;
  position: relative;
  overflow: hidden;
}

.hero-banner {
  position: relative;
  overflow: hidden;
  border-radius: 14px;
  border: 1px solid color-mix(in srgb, var(--border), transparent 10%);
  background: #0d0a1c;
  margin-bottom: 1.2rem;
  box-shadow: 0 12px 26px rgba(0, 0, 0, 0.3);
}

.hero-banner img {
  width: 100%;
  display: block;
  aspect-ratio: 16 / 7;
  object-fit: cover;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.75rem;
}

.status {
  margin-left: auto;
}

.privacy-note {
  display: flex;
  gap: 0.75rem;
  align-items: center;
  padding: 0.75rem 1rem;
  margin-bottom: 1rem;
  border-radius: 12px;
  background: color-mix(in srgb, var(--accent) 10%, transparent);
  border: 1px solid color-mix(in srgb, var(--border), transparent 10%);
  color: var(--ink);
}

.privacy-note .badge {
  padding: 0.35rem 0.65rem;
  border-radius: 999px;
  background: color-mix(in srgb, var(--accent), #ffffff 8%);
  color: #0b0a14;
  font-weight: 800;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  font-size: 0.75rem;
}

.brand {
  display: flex;
  gap: 0.75rem;
  align-items: center;
}

.brand h1 {
  margin: 0.1rem 0 0;
  font-size: 1.35rem;
  letter-spacing: -0.02em;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-size: 0.68rem;
  color: var(--muted);
  font-weight: 700;
}

.status {
  padding: 0.4rem 0.75rem;
  background: rgba(255, 255, 255, 0.04);
  border-radius: 999px;
  border: 1px solid color-mix(in srgb, var(--border), transparent 20%);
  color: var(--muted);
  font-weight: 600;
  font-size: 0.9rem;
}

.screen {
  display: none;
  background: radial-gradient(circle at 20% 20%, rgba(255, 77, 109, 0.08), transparent 40%),
    var(--surface);
  border: 1px solid color-mix(in srgb, var(--border), transparent 15%);
  border-radius: 14px;
  padding: 1.25rem;
}

.screen.active {
  display: block;
}

.stack {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

h2 {
  margin: 0 0 0.5rem;
  font-size: 1.25rem;
  letter-spacing: -0.01em;
}

.hint {
  margin: 0 0 1rem;
  color: var(--muted);
}

.field {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  font-weight: 600;
  color: var(--ink);
}

input[type="text"],
input[type="tel"] {
  padding: 0.85rem 0.9rem;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.04);
  font-size: 1rem;
  color: var(--ink);
}

input:focus {
  outline: 2px solid color-mix(in srgb, var(--accent) 50%, transparent);
  border-color: var(--accent);
}

button {
  border: none;
  border-radius: 12px;
  font-weight: 700;
  cursor: pointer;
  padding: 0.85rem 1rem;
  font-size: 1rem;
  transition: transform 120ms ease, box-shadow 120ms ease, background 120ms ease;
}

button.primary {
  background: linear-gradient(120deg, var(--accent), var(--accent-strong));
  color: #fff;
  box-shadow: 0 10px 24px rgba(255, 77, 109, 0.4);
}

button.primary:hover {
  transform: translateY(-1px);
}

button.ghost {
  background: color-mix(in srgb, var(--accent) 14%, transparent);
  border: 1px solid color-mix(in srgb, var(--accent), #ffffff 10%);
  color: #ffe5ee;
}

button.ghost:hover {
  background: color-mix(in srgb, var(--accent) 24%, transparent);
  border-color: color-mix(in srgb, var(--accent-strong), #ffffff 20%);
}

.error {
  color: #c53b36;
  min-height: 1.2rem;
}

.chat-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: 0.75rem;
}

.persona-card {
  display: flex;
  align-items: center;
  gap: 0.9rem;
}

.persona-avatar {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  border: 2px dashed color-mix(in srgb, var(--muted), transparent 35%);
  background: radial-gradient(circle at 30% 30%, rgba(255, 255, 255, 0.08), transparent 45%),
    rgba(255, 255, 255, 0.04);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.05);
  flex-shrink: 0;
  transition: border 160ms ease, box-shadow 160ms ease, transform 160ms ease;
  background-size: cover;
  background-position: center;
}

.persona-avatar.is-empty {
  animation: pulse 1.8s ease-in-out infinite;
}

.persona-avatar:not(.is-empty) {
  border: 2px solid color-mix(in srgb, var(--accent), transparent 10%);
  box-shadow: var(--glow);
  transform: translateZ(0);
  animation: none;
}

.persona-note {
  color: var(--muted);
  font-size: 0.9rem;
  margin-top: 0.1rem;
}

.session-phone {
  font-weight: 700;
  font-size: 1.05rem;
}

.messages {
  height: 360px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  padding: 0.25rem;
  background: linear-gradient(180deg, rgba(255, 77, 109, 0.05), rgba(19, 17, 41, 0.9));
  border-radius: 12px;
  border: 1px solid var(--border);
}

.bubble {
  max-width: 85%;
  padding: 0.8rem 0.95rem;
  border-radius: 12px;
  font-weight: 500;
  line-height: 1.4;
  box-shadow: 0 3px 14px rgba(0, 0, 0, 0.4);
}

.bubble.user {
  margin-left: auto;
  background: linear-gradient(135deg, #ff4d6d, #ff8fa3);
  color: #1a0d26;
  border-bottom-right-radius: 4px;
}

.bubble.assistant {
  background: linear-gradient(135deg, rgba(138, 43, 226, 0.25), rgba(255, 77, 109, 0.18));
  border: 1px solid var(--border);
  border-bottom-left-radius: 4px;
}

.bubble.meta {
  margin: 0 auto;
  background: transparent;
  box-shadow: none;
  color: color-mix(in srgb, var(--muted), #ffffff 35%);
  font-size: 0.9rem;
}

.message-box {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.6rem;
  margin-top: 0.75rem;
}

.paywall-banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.9rem 1rem;
  margin-top: 0.75rem;
  border-radius: 12px;
  border: 1px solid color-mix(in srgb, var(--accent), transparent 60%);
  background: color-mix(in srgb, var(--accent), var(--surface) 70%);
  box-shadow: var(--shadow);
}

.paywall-text {
  font-weight: 700;
  color: #fff;
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.paywall-banner .primary {
  white-space: nowrap;
}

.paywall-countdown {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
}

.loader-overlay {
  position: absolute;
  inset: 0;
  background: rgba(10, 7, 21, 0.8);
  backdrop-filter: blur(6px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 10;
}

.loader-overlay.active {
  display: flex;
}

.loader-box {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.9rem 1.2rem;
  border-radius: 12px;
  border: 1px solid color-mix(in srgb, var(--border), transparent 10%);
  background: color-mix(in srgb, #ffffff 4%, rgba(11, 10, 20, 0.94));
  box-shadow: var(--shadow);
}

.spinner {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  border: 3px solid color-mix(in srgb, var(--muted), transparent 30%);
  border-top-color: var(--accent);
  animation: spin 0.9s linear infinite;
}

.loader-text {
  font-weight: 700;
  letter-spacing: 0.01em;
}

@keyframes pulse {
  0% {
    opacity: 0.7;
  }
  50% {
    opacity: 1;
  }
  100% {
    opacity: 0.7;
  }
}

@media (max-width: 640px) {
  .panel {
    padding: 1rem;
  }
  .hero-banner img {
    aspect-ratio: 4 / 3;
  }
  .chat-header {
    flex-direction: column;
    align-items: flex-start;
  }
  .persona-card {
    width: 100%;
    justify-content: space-between;
  }
  .persona-note {
    font-size: 0.85rem;
  }
  .messages {
    height: 320px;
  }
  .bubble {
    max-width: 100%;
  }
  .topbar {
    flex-direction: row;
    align-items: center;
  }
  .status {
    margin-left: auto;
  }
}

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