/* --- Basic Setup --- */
body {
    font-family: Arial, sans-serif;
    background-color: #FFFFFF;
    color: #333333;
    margin: 0;
    padding: 0;
    line-height: 1.7;
}

.container {
    width: 90%;
    max-width: 900px;
    margin: 0 auto;
}

a {
    color: #007BFF;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
}

/* --- Header --- */
.site-header {
    background-color: #FFFFFF;
    border-bottom: 1px solid #E0E0E0;
    padding: 15px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo a {
    font-size: 1.8em;
    font-weight: bold;
    color: #333333;
    text-decoration: none;
}

.nav-button {
    color: #FFFFFF;
    padding: 8px 20px;
    border-radius: 5px;
    text-decoration: none;
    font-weight: bold;
    transition: opacity 0.3s ease;
}
.nav-button:hover {
    opacity: 0.9;
    text-decoration: none;
}
.login-btn { background-color: #00ECBE; margin-right: 10px; }
.register-btn { background-color: #02AFB6; }

/* --- Main Content --- */
.main-content {
    padding: 20px 0;
}
.page-content {
    text-align: center;
}
.content-section {
    margin: 30px 0;
    text-align: left;
}
.content-section p {
    font-size: 1.1em;
    color: #555555;
}
.hero-image {
    margin-bottom: 20px;
    border: 1px solid #ddd;
}
.recharge-image {
    max-width: 400px; /* Mobile screenshot size */
    margin: 20px auto;
    display: block;
}

/* --- CTA Button --- */
.cta-section {
    margin: 40px 0;
    text-align: center;
}
.cta-button {
    background-color: #02AFB6;
    color: #FFFFFF;
    padding: 12px 30px;
    font-size: 1.2em;
    font-weight: bold;
    border-radius: 5px;
    text-decoration: none;
    transition: background-color 0.3s ease;
}
.cta-button:hover {
    background-color: #0056b3;
    text-decoration: none;
}

/* --- Gift Code & Table --- */
.section-title {
    text-align: center;
    font-size: 1.5em;
    margin-bottom: 20px;
}
.gift-code-display {
    text-align: center;
    font-size: 1.2em;
    font-weight: bold;
    color: #dc3545;
    word-wrap: break-word;
    margin-bottom: 20px;
}
.info-table {
    border: 1px solid #DEE2E6;
    border-radius: 5px;
    overflow: hidden;
}
.info-table table {
    width: 100%;
    border-collapse: collapse;
}
.info-table td {
    padding: 12px 15px;
    border-bottom: 1px solid #DEE2E6;
}
.info-table tr:last-child td {
    border-bottom: none;
}
.info-table td:first-child {
    font-weight: bold;
    width: 40%;
}
#inviteCode {
    cursor: pointer;
}
#copyIcon {
    margin-left: 10px;
    color: #007BFF;
}

/* --- Footer --- */
.site-footer {
    background-color: #F8F9FA;
    border-top: 1px solid #E0E0E0;
    padding: 20px 0;
    margin-top: 30px;
    color: #6C757D;
}
.footer-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
}
.footer-nav a {
    margin-left: 15px;
    color: #6C757D;
}

/* --- Notification --- */
.copy-notification {
    visibility: hidden;
    opacity: 0;
    background-color: #28A745;
    color: #fff;
    text-align: center;
    border-radius: 5px;
    padding: 10px;
    position: fixed;
    z-index: 1001;
    left: 50%;
    transform: translateX(-50%);
    bottom: 30px;
    transition: opacity 0.5s, visibility 0.5s;
}
.copy-notification.show {
    visibility: visible;
    opacity: 1;
}

/* Responsive */
@media (max-width: 600px) {
    .header-container, .footer-container {
        flex-direction: column;
    }
    .logo { margin-bottom: 15px; }
    .footer-nav { margin-top: 10px; }
    .footer-nav a { margin: 0 8px; }
}