/* ── Generate Voucher ─────────────────────────────────────── */
@keyframes gvFadeUp {
    from { opacity: 0; transform: translateY(10px); }
    to   { opacity: 1; transform: translateY(0); }
}
@keyframes spin { to { transform: rotate(360deg); } }

body {
    font-family: var(--font-family);
    background: #f1f5f9;
    min-height: 100vh;
    color: var(--text-primary);
    margin: 0; padding: 0; line-height: 1.6;
}
.hidden { display: none !important; }

/* ── Hero ── */

.gv-balance {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 8px 16px;
    background: rgba(255,255,255,0.08);
    border: 1px solid rgba(255,255,255,0.12);
    border-radius: 10px;
    font-size: 13px; font-weight: 600; color: #e2e8f0;
    white-space: nowrap;
}
.gv-balance svg { color: #fbbf24; }

/* ── Page ── */
.gv-page {
    max-width: 720px; margin: 0 auto;
    padding: 28px 24px 48px;
    animation: gvFadeUp 0.35s ease;
}
#alertContainer { margin-bottom: 16px; }
#alertContainer:empty { display: none; }

/* ── Card ── */
.gv-card {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 12px; padding: 24px;
    box-shadow: var(--shadow-sm); margin-bottom: 16px;
}
.gv-card h3 {
    font-size: 15px; font-weight: 800; color: var(--text-primary);
    margin: 0 0 16px; display: flex; align-items: center; gap: 8px;
}

/* ── Info alert ── */
.alert-info {
    display: flex; align-items: flex-start; gap: 10px;
    background: #eef2ff; color: #3730a3;
    border: 1px solid #c7d2fe; border-radius: 10px;
    padding: 12px 16px; font-size: 13px; line-height: 1.5;
    margin-bottom: 20px;
}
.alert-info svg { flex-shrink: 0; margin-top: 1px; color: #6366f1; }

/* ── Form ── */
.form-group { margin-bottom: 16px; }
.form-label {
    display: block; font-size: 13px; font-weight: 700;
    color: var(--text-primary); margin-bottom: 6px;
}
.form-input {
    width: 100%; padding: 10px 14px;
    border: 1.5px solid var(--border); border-radius: 9px;
    font-size: 14px; font-family: var(--font-family);
    background: #f8fafc; color: var(--text-primary);
    transition: border-color 0.15s, box-shadow 0.15s;
    box-sizing: border-box; outline: none;
}
.form-input:focus {
    border-color: var(--primary); background: #fff;
    box-shadow: 0 0 0 3px rgba(99,102,241,0.1);
}
.form-group small {
    display: block; margin-top: 5px;
    font-size: 12px; color: var(--text-muted);
}

/* ── Buttons ── */
.btn, .btn-primary {
    display: inline-flex; align-items: center; justify-content: center; gap: 8px;
    padding: 11px 20px;
    background: var(--primary); color: #fff;
    border: none; border-radius: 9px;
    font-size: 13.5px; font-weight: 700; cursor: pointer;
    font-family: var(--font-family);
    transition: background 0.15s, transform 0.15s;
}
.btn-primary:hover { background: var(--primary-dark, #4f46e5); transform: translateY(-1px); }
.btn-primary:disabled { background: var(--border); cursor: not-allowed; transform: none; }
.btn-secondary {
    background: #f1f5f9; color: var(--text-secondary);
    border: 1.5px solid var(--border);
}
.btn-secondary:hover { background: #e2e8f0; transform: translateY(-1px); }
.btn-full { width: 100%; }

/* ── Voucher result ── */
#voucherResult .voucher-result {
    background: linear-gradient(135deg, #6366f1, #4f46e5);
    border-radius: 12px; padding: 24px;
    text-align: center; color: #fff; margin-top: 16px;
}
#voucherResult .voucher-result h3 {
    font-size: 16px; font-weight: 800; color: #fff; margin: 0 0 14px;
}
.voucher-code {
    background: rgba(255,255,255,0.15);
    border: 2px dashed rgba(255,255,255,0.4);
    border-radius: 10px; padding: 16px 20px;
    font-size: 22px; font-weight: 900; letter-spacing: 3px;
    font-family: 'Courier New', monospace;
    cursor: pointer; margin: 14px 0;
    transition: background 0.15s;
}
.voucher-code:hover { background: rgba(255,255,255,0.22); }
.copy-btn {
    display: inline-flex; align-items: center; gap: 7px;
    padding: 10px 22px;
    background: rgba(255,255,255,0.18);
    border: 1.5px solid rgba(255,255,255,0.3);
    border-radius: 8px; font-size: 13.5px; font-weight: 700;
    color: #fff; cursor: pointer; font-family: var(--font-family);
    transition: background 0.15s;
}
.copy-btn:hover { background: rgba(255,255,255,0.28); }

/* ── My vouchers list ── */
.loading {
    text-align: center; padding: 32px;
    color: var(--text-muted); font-size: 13.5px;
}

/* ── How-to list ── */
.gv-card ol {
    margin: 0; padding-left: 20px; line-height: 2.2;
    font-size: 13.5px; color: var(--text-secondary);
}

/* ── Footer ── */
.gv-footer { border-top: 1px solid #e2e8f0; padding-top: 24px; margin-top: 8px; text-align: center; }
.gv-footer-links { display: flex; justify-content: center; gap: 24px; flex-wrap: wrap; margin-bottom: 12px; }
.gv-footer-links a {
    display: inline-flex; align-items: center; gap: 5px;
    font-size: 12.5px; color: var(--text-muted); text-decoration: none; transition: color 0.15s;
}
.gv-footer-links a:hover { color: var(--primary); }
.gv-footer-copy { font-size: 12px; color: var(--text-muted); margin: 0; }

@media (max-width: 640px) {
    .gv-page { padding: 20px 16px 40px; }
    .gv-card { padding: 18px 16px; }
}