:root {
    --bg: #0f1115;
    --card: #171a21;
    --border: #262b36;
    --text: #e9ecf1;
    --muted: #8b93a3;
    --accent: #4ade80;
    --accent-dark: #22c55e;
    --danger: #f87171;
    --radius: 12px;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}

.topbar {
    display: flex;
    align-items: center;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border);
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 18px; }
.brand img { width: 32px; height: 32px; border-radius: 50%; }

.container {
    max-width: 640px;
    margin: 0 auto;
    padding: 20px 16px 60px;
}

.ad-slot {
    background: var(--card);
    border: 1px dashed var(--border);
    border-radius: var(--radius);
    color: var(--muted);
    text-align: center;
    padding: 24px;
    margin: 16px 0;
    font-size: 13px;
}

.claim-card, .referral-card, .payouts-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    margin: 16px 0;
    text-align: center;
}

.coin-icon { width: 64px; height: 64px; border-radius: 50%; margin-bottom: 8px; }

.claim-card h1 { margin: 6px 0 2px; font-size: 22px; }
.subtitle { color: var(--muted); margin: 0 0 20px; font-size: 14px; }

#claim-form { display: flex; flex-direction: column; gap: 10px; text-align: left; }
#claim-form label { font-size: 13px; color: var(--muted); }
#claim-form input {
    background: #0c0e12;
    border: 1px solid var(--border);
    color: var(--text);
    padding: 12px 14px;
    border-radius: 8px;
    font-size: 15px;
}
#claim-form input:focus { outline: none; border-color: var(--accent); }

#claim-btn {
    margin-top: 6px;
    background: var(--accent);
    color: #08210f;
    font-weight: 700;
    border: none;
    padding: 14px;
    border-radius: 8px;
    font-size: 16px;
    cursor: pointer;
    transition: background .15s ease;
}
#claim-btn:hover { background: var(--accent-dark); }
#claim-btn:disabled { opacity: .5; cursor: not-allowed; }

.claim-message {
    margin-top: 14px;
    padding: 10px 12px;
    border-radius: 8px;
    font-size: 14px;
}
.claim-message.success { background: rgba(74,222,128,.12); color: var(--accent); }
.claim-message.error { background: rgba(248,113,113,.12); color: var(--danger); }

.countdown { margin-top: 14px; font-size: 14px; color: var(--muted); }
.countdown span { color: var(--text); font-weight: 700; }

.ad-unlock {
    margin-top: 4px;
    padding: 14px;
    border: 1px dashed var(--border);
    border-radius: 8px;
    text-align: center;
}
.ad-unlock-link {
    display: block;
    background: #1f2430;
    color: var(--text);
    text-decoration: none;
    padding: 12px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 14px;
    border: 1px solid var(--border);
}
.ad-unlock-link:hover { border-color: var(--accent); }
.ad-unlock-link.clicked { opacity: .6; pointer-events: none; }
.ad-unlock-status { color: var(--muted); font-size: 12px; margin: 8px 0 0; }
.ad-unlock-status.ready { color: var(--accent); }

.ref-link {
    background: #0c0e12;
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 12px;
    font-size: 13px;
    color: var(--muted);
    word-break: break-all;
}

.payouts-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.payouts-table th, .payouts-table td {
    padding: 10px 8px;
    border-bottom: 1px solid var(--border);
    text-align: left;
}
.payouts-table th { color: var(--muted); font-weight: 600; }

.footer {
    text-align: center;
    color: var(--muted);
    font-size: 12px;
    padding: 24px 0 40px;
}

@media (max-width: 480px) {
    .claim-card h1 { font-size: 19px; }
}