body {
    font-family: Arial, sans-serif;
    background: #f5f5f5;
    margin: 0;

    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100dvh;
    padding: 10px;
}

/* Container */
.container {
    width: 420px;
    max-width: 100%;
    background: #fff;
    border-radius: 10px;
    padding: 16px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.12);
}

/* Label */
.label {
    font-weight: 600;
    margin-bottom: 6px;
    display: flex;
    align-items: center;
    gap: 6px;
}

/* Input */
.input-group {
    display: flex;
    border: 1px solid #ddd;
    border-radius: 6px;
    overflow: hidden;
}

.input-group input {
    flex: 1;
    padding: 10px;
    border: none;
    outline: none;
}

.copy-btn {
    width: 40px;
    border-left: 1px solid #ddd;
    background: #fff;
    cursor: pointer;
}

/* Button */
.submit-btn {
    width: 100%;
    background: #f15a2b;
    color: #fff;
    border: none;
    padding: 12px;
    border-radius: 6px;
    margin-top: 12px;
    margin-bottom: 12px;
    font-size: 15px;
    cursor: pointer;
    font-weight: 600;
}

.submit-btn:hover {
    background: #e14c20;
}

/* Guide */
.guide {
    margin-top: 16px;
    background: #f2f2f2;
    padding: 12px;
    border-radius: 6px;
}

.guide h4 {
    margin: 0 0 8px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.guide ol {
    padding-left: 18px;
    margin: 0;
    font-size: 14px;
}

.fb-btn {
    margin-top: 10px;
    background: #fff;
    border: 1px solid #1877f2;
    color: #1877f2;
    padding: 8px 12px;
    border-radius: 6px;
    cursor: pointer;
    width: fit-content;
}

/* Voucher */
.voucher {
    margin-top: 16px;
    border: 1px solid #eee;
    border-radius: 8px;
    overflow: hidden;
    display: flex;
}

/* Facebook image area */
.voucher-left {
    background: #f15a2b;
    width: 80px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.voucher-left img {
    width: 40px;
    height: 40px;
    background: #fff;
    border-radius: 50%;
    padding: 6px;
}

/* Right content */
.voucher-right {
    flex: 1;
    padding: 10px;
    position: relative;
}

.best-tag {
    position: absolute;
    right: 10px;
    top: 8px;
    background: #ffb199;
    color: #fff;
    padding: 2px 6px;
    font-size: 12px;
    border-radius: 10px;
}

.voucher-title {
    font-weight: bold;
    font-size: 16px;
    margin-bottom: 4px;
}

.voucher-sub {
    font-size: 13px;
    margin-bottom: 6px;
    color: #555;
}

.badge {
    display: inline-block;
    border: 1px solid #ff4d4f;
    color: #ff4d4f;
    padding: 2px 6px;
    font-size: 12px;
    border-radius: 4px;
}

.expire {
    font-size: 12px;
    color: #888;
    margin-top: 4px;
}

.expire span {
    color: #1a73e8;
}

.check {
    position: absolute;
    right: 10px;
    bottom: 10px;
    background: #ff6a3d;
    color: #fff;
    border-radius: 50%;
    width: 22px;
    height: 22px;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 12px;
}