:root {
  --bg: #0e1120;
  --card: #171b30;
  --card-border: #262c4d;
  --text: #eef0ff;
  --muted: #9aa3c7;
  --accent: #6c5ce7;
  --accent-2: #00b8d4;
  --paypal: #ffc439;
  --error: #ff7a7a;
  --success: #3ddc97;
  --radius: 16px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Segoe UI", system-ui, -apple-system, Roboto, "Helvetica Neue", Arial, sans-serif;
  background: radial-gradient(1200px 600px at 80% -10%, #232a52 0%, var(--bg) 55%);
  color: var(--text);
  min-height: 100vh;
}

.wrap { max-width: 860px; margin: 0 auto; padding: 0 20px; }

/* Header */
.site-header {
  border-bottom: 1px solid var(--card-border);
  background: rgba(14, 17, 32, 0.85);
  position: sticky; top: 0; z-index: 10;
  backdrop-filter: blur(6px);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; padding-top: 14px; padding-bottom: 14px; }
.brand { display: flex; align-items: center; gap: 10px; font-size: 20px; font-weight: 700; }
.brand-mark {
  display: inline-flex; align-items: center; justify-content: center;
  width: 36px; height: 36px; border-radius: 10px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #fff; font-size: 14px; letter-spacing: 0.5px;
}
.brand-ai { color: var(--accent-2); }
.mode-badge {
  font-size: 12px; font-weight: 700; letter-spacing: 0.6px; text-transform: uppercase;
  padding: 6px 10px; border-radius: 999px;
  background: #2a2140; color: #ffd166; border: 1px solid #4a3a1f;
}
.mode-badge.mode-live { background: #123528; color: var(--success); border-color: #1f5c40; }

main { padding: 28px 0 8px; }

.card {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 22px;
  margin-bottom: 20px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
}
.card h2 { margin: 0 0 14px; font-size: 19px; }
.card h3 { margin: 16px 0 8px; font-size: 16px; }
.hidden { display: none !important; }
.hint { color: var(--muted); font-size: 13.5px; line-height: 1.5; }
.error { color: var(--error); font-size: 13.5px; min-height: 1em; margin: 6px 0 0; }

code {
  background: #0d1022; border: 1px solid var(--card-border);
  padding: 1px 6px; border-radius: 6px; font-size: 0.88em; color: #c9d4ff;
}

/* Creator card */
.creator-card { display: flex; gap: 18px; align-items: center; }
.avatar {
  flex: 0 0 auto; width: 84px; height: 84px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 38px; font-weight: 800; color: #fff;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  border: 3px solid rgba(255, 255, 255, 0.15);
}
.creator-meta h1 { margin: 0; font-size: 28px; }
.handle { margin: 2px 0 6px; color: var(--accent-2); font-weight: 600; }
.bio { margin: 0; color: var(--muted); line-height: 1.55; max-width: 56ch; }

/* Amounts */
.preset-row { display: flex; flex-wrap: wrap; gap: 10px; align-items: stretch; }
.preset-btn {
  border: 1px solid var(--card-border); background: #10142a; color: var(--text);
  font-size: 17px; font-weight: 700; padding: 12px 22px; border-radius: 999px; cursor: pointer;
  transition: all 0.15s ease;
}
.preset-btn:hover { border-color: var(--accent); }
.preset-btn.active { background: linear-gradient(135deg, var(--accent), var(--accent-2)); border-color: transparent; color: #fff; }
.custom-amount {
  display: inline-flex; align-items: center; gap: 6px;
  border: 1px solid var(--card-border); background: #10142a; border-radius: 999px; padding: 0 16px;
  font-weight: 700; color: var(--muted);
}
.custom-amount input {
  width: 110px; border: none; background: transparent; color: var(--text);
  font-size: 16px; padding: 12px 0; outline: none;
}
.summary { margin: 12px 0 0; font-weight: 600; color: var(--accent-2); }

/* Forms */
label { display: block; font-size: 13.5px; font-weight: 600; color: var(--muted); }
input[type="text"], textarea {
  width: 100%; margin-top: 6px;
  background: #10142a; border: 1px solid var(--card-border); border-radius: 10px;
  color: var(--text); font-size: 15px; padding: 11px 12px; outline: none;
  font-family: inherit;
}
input[type="text"]:focus, textarea:focus { border-color: var(--accent); }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
@media (max-width: 640px) { .grid-2 { grid-template-columns: 1fr; } .creator-card { flex-direction: column; text-align: center; } }
.tones { border: none; padding: 0; margin: 16px 0 6px; display: flex; flex-wrap: wrap; gap: 8px 18px; }
.tones legend { font-size: 13.5px; font-weight: 600; color: var(--muted); margin-bottom: 6px; }
.tones label { display: inline-flex; align-items: center; gap: 6px; color: var(--text); font-weight: 500; cursor: pointer; }
.ai-tag {
  font-size: 11px; vertical-align: middle; background: #233056; color: #9fd8ff;
  border: 1px solid #33507e; padding: 3px 8px; border-radius: 999px; margin-left: 6px;
  text-transform: uppercase; letter-spacing: 0.5px;
}
.primary-btn {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #fff; border: none; font-size: 15px; font-weight: 700;
  padding: 12px 22px; border-radius: 999px; cursor: pointer; margin-top: 12px;
}
.primary-btn:hover { filter: brightness(1.1); }
.ghost-btn {
  background: transparent; color: var(--text); border: 1px solid var(--card-border);
  font-size: 14px; font-weight: 600; padding: 10px 18px; border-radius: 999px; cursor: pointer; margin-top: 10px;
}
.message-label { margin-top: 16px; }

/* Checkout */
.mode-banner {
  background: #241d3a; border: 1px solid #4a3a1f; color: #ffe1a8;
  border-radius: 12px; padding: 12px 14px; font-size: 14px; line-height: 1.55; margin-bottom: 16px;
}
#paypal-buttons { max-width: 420px; }
.paypal-demo-btn {
  background: var(--paypal); color: #003087; border: none;
  font-size: 16px; font-weight: 800; padding: 13px 26px; border-radius: 999px; cursor: pointer;
}
.paypal-demo-btn:disabled { opacity: 0.6; cursor: wait; }
.checkout-log { margin: 14px 0 0; padding-left: 20px; color: var(--muted); font-size: 13.5px; line-height: 1.7; }

/* Success */
.success { border-color: #1f5c40; }
.success h2 { color: var(--success); }
.success-facts { display: flex; flex-wrap: wrap; gap: 14px 34px; margin: 0 0 6px; }
.success-facts dt { font-size: 12px; text-transform: uppercase; letter-spacing: 0.6px; color: var(--muted); }
.success-facts dd { margin: 3px 0 0; font-weight: 700; font-size: 16px; word-break: break-all; }
.delivered { margin-bottom: 6px; }
.delivered-message {
  margin: 0; background: #10142a; border-left: 4px solid var(--success);
  padding: 12px 14px; border-radius: 0 10px 10px 0; line-height: 1.6; font-style: italic;
}
.success hr { border: none; border-top: 1px solid var(--card-border); margin: 20px 0 4px; }

/* How it works */
.how-list { margin: 0; padding-left: 20px; line-height: 1.65; color: #d6daff; }
.how-list li { margin-bottom: 10px; }

.site-footer { border-top: 1px solid var(--card-border); margin-top: 10px; }
.site-footer p { color: var(--muted); font-size: 13px; padding: 16px 0 22px; margin: 0; line-height: 1.5; }