/* CSS for quathang8.icu - GO99 Trung Thu 2025 */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Arial', sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
    -webkit-touch-callout: none;
    -webkit-tap-highlight-color: transparent;
}

.container {
    max-width: 1200px;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    position: relative;
}

.main-content {
    display: flex;
    align-items: center;
    min-height: 80vh;
    padding: 40px;
}

.content-left {
    flex: 1;
    padding-right: 40px;
}

.content-right {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
}

.title {
    font-size: 3.5rem;
    font-weight: bold;
    color: #333;
    margin-bottom: 20px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.1);
}

.subtitle {
    font-size: 1.5rem;
    color: #666;
    margin-bottom: 30px;
    line-height: 1.6;
}

.description {
    font-size: 1.1rem;
    color: #777;
    margin-bottom: 40px;
    line-height: 1.8;
}

.cta-button {
    display: inline-block;
    background: linear-gradient(45deg, #ff6b6b, #ee5a24);
    color: white;
    padding: 20px 40px;
    font-size: 1.3rem;
    font-weight: bold;
    text-decoration: none;
    border-radius: 50px;
    box-shadow: 0 10px 30px rgba(255, 107, 107, 0.3);
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(255, 107, 107, 0.4);
}

.main-image {
    max-width: 100%;
    height: auto;
    border-radius: 15px;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.2);
    transition: transform 0.3s ease;
    width: 100%;
    display: block;
}

.main-image:hover {
    transform: scale(1.05);
}

.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
    margin-top: 50px;
    padding: 40px;
    background: rgba(255, 255, 255, 0.1);
}

.feature {
    text-align: center;
    padding: 20px;
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 15px;
}

.feature-title {
    font-size: 1.2rem;
    font-weight: bold;
    color: #333;
    margin-bottom: 10px;
}

.feature-desc {
    color: #666;
    font-size: 0.9rem;
}

/* Mobile Styles */
@media (max-width: 768px) {
    body {
        padding: 0;
        margin: 0;
    }

    .container {
        border-radius: 0;
        margin: 0;
        width: 100vw;
        min-height: 100vh;
    }

    .main-content {
        flex-direction: column;
        padding: 0;
        min-height: 100vh;
    }

    .content-left {
        padding: 20px;
        margin-bottom: 0;
        text-align: center;
        background: rgba(255, 255, 255, 0.95);
        position: relative;
        z-index: 2;
    }

    .content-right {
        order: -1;
        margin-bottom: 0;
        padding: 0;
        width: 100%;
        min-height: auto;
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .title {
        font-size: 2.5rem;
        margin-bottom: 15px;
    }

    .subtitle {
        font-size: 1.2rem;
        margin-bottom: 20px;
    }

    .description {
        font-size: 1rem;
        margin-bottom: 30px;
    }

    .cta-button {
        padding: 15px 30px;
        font-size: 1.1rem;
        width: 100%;
        max-width: 300px;
    }

    .main-image {
        width: 100%;
        height: auto;
        max-width: 100%;
        border-radius: 0;
        object-fit: contain;
        display: block;
    }

    .features {
        grid-template-columns: 1fr;
        gap: 20px;
        padding: 20px;
        margin-top: 0;
        background: rgba(255, 255, 255, 0.95);
    }

    .feature {
        padding: 15px;
    }
}

/* Mobile Portrait (9:16 ratio) */
@media (max-width: 480px) and (orientation: portrait) {
    .content-right {
        padding: 0;
        margin-bottom: 0;
        width: 100%;
        min-height: auto;
    }
    
    .container {
        border-radius: 0;
        margin: 0;
        width: 100vw;
        min-height: 100vh;
    }

    .main-content {
        padding: 0;
        min-height: 100vh;
    }

    .content-left {
        padding: 15px;
        background: rgba(255, 255, 255, 0.95);
    }

    .title {
        font-size: 2rem;
    }

    .subtitle {
        font-size: 1rem;
    }

    .description {
        font-size: 0.9rem;
    }

    .main-image {
        width: 100%;
        height: auto;
        max-width: 100%;
        border-radius: 0;
        object-fit: contain;
        display: block;
    }

    .cta-button {
        padding: 12px 25px;
        font-size: 1rem;
    }
}

/* Extra small mobile devices */
@media (max-width: 360px) {
    .content-right {
        min-height: auto;
        padding: 0;
    }
    
    .main-image {
        width: 100%;
        height: auto;
        max-width: 100%;
        border-radius: 0;
        object-fit: contain;
        display: block;
    }
    
    .content-left {
        padding: 10px;
    }
}

/* Loading animation */
.loading {
    opacity: 0;
    animation: fadeIn 0.8s ease-in-out forwards;
}

@keyframes fadeIn {
    to {
        opacity: 1;
    }
}

/* Pulse animation for CTA button */
@keyframes pulse {
    0% {
        box-shadow: 0 10px 30px rgba(255, 107, 107, 0.3);
    }
    50% {
        box-shadow: 0 10px 30px rgba(255, 107, 107, 0.6);
    }
    100% {
        box-shadow: 0 10px 30px rgba(255, 107, 107, 0.3);
    }
}

.cta-button {
    animation: pulse 2s infinite;
}

/* Footer Styles */
.footer {
    background: linear-gradient(135deg, #2c3e50 0%, #34495e 100%);
    color: white;
    padding: 40px 0 20px;
    margin-top: 0;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 40px;
}

.footer-section h4 {
    color: #ecf0f1;
    margin-bottom: 15px;
    font-size: 1.1rem;
    font-weight: bold;
}

.footer-section ul {
    list-style: none;
    padding: 0;
}

.footer-section ul li {
    margin-bottom: 8px;
}

.footer-section ul li a {
    color: #bdc3c7;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section ul li a:hover {
    color: #3498db;
}

.footer-section p {
    color: #bdc3c7;
    line-height: 1.6;
    margin-bottom: 10px;
}

.footer-bottom {
    border-top: 1px solid #34495e;
    margin-top: 30px;
    padding: 20px 40px;
    text-align: center;
    background: rgba(0, 0, 0, 0.2);
}

.footer-bottom p {
    color: #95a5a6;
    margin: 5px 0;
    font-size: 0.9rem;
}

.disclaimer {
    font-style: italic;
    font-size: 0.8rem !important;
}

/* Mobile Footer */
@media (max-width: 768px) {
    .footer-content {
        grid-template-columns: 1fr;
        gap: 20px;
        padding: 0 20px;
    }

    .footer-bottom {
        padding: 15px 20px;
    }

    .footer-section h4 {
        font-size: 1rem;
    }

    .footer-section p {
        font-size: 0.9rem;
    }
}