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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: #333;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
}

/* App Container */
.app-container {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    align-items: center;
    min-height: 100vh;
    padding: 2rem 1rem;
}

.content {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    max-width: 600px;
    width: 100%;
}

/* App Icon */
.app-icon {
    width: 120px;
    height: 120px;
    margin-bottom: 2rem;
    animation: fadeInUp 0.8s ease-out;
}

.app-icon img {
    width: 100%;
    height: 100%;
    border-radius: 24px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
}

/* App Title and Description */
.app-title {
    font-size: 3.5rem;
    font-weight: bold;
    color: white;
    margin-bottom: 0.5rem;
    animation: fadeInUp 0.8s ease-out 0.2s both;
}

.app-tagline {
    font-size: 1.8rem;
    color: rgba(255, 255, 255, 0.95);
    margin-bottom: 1rem;
    animation: fadeInUp 0.8s ease-out 0.4s both;
}

.app-description {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: 3rem;
    max-width: 500px;
    animation: fadeInUp 0.8s ease-out 0.6s both;
}

/* Benefits Section */
.benefits-section {
    background: rgba(255, 255, 255, 0.95);
    border-radius: 16px;
    padding: 2rem 2.5rem;
    margin-bottom: 3rem;
    max-width: 550px;
    width: 100%;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    animation: fadeInUp 0.8s ease-out 0.6s both;
}

.benefits-title {
    font-size: 1.3rem;
    font-weight: 700;
    color: #1a1a1a;
    margin-bottom: 1.5rem;
    text-align: left;
}

.benefits-list {
    list-style: none;
    padding: 0;
    margin: 0;
    text-align: left;
}

.benefits-list li {
    font-size: 1rem;
    color: #333;
    line-height: 1.6;
    margin-bottom: 1.2rem;
    padding-left: 2rem;
    position: relative;
}

.benefits-list li:last-child {
    margin-bottom: 0;
}

.benefits-list li::before {
    content: "✓";
    position: absolute;
    left: 0;
    top: 0;
    font-size: 1.3rem;
    font-weight: bold;
    color: #667eea;
}

/* Platform Buttons */
.platform-buttons {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    width: 100%;
    max-width: 400px;
    animation: fadeInUp 0.8s ease-out 0.8s both;
}

.platform-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.5rem 2.5rem;
    background: white;
    border-radius: 12px;
    text-decoration: none;
    color: #333;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    transition: all 0.3s ease;
    cursor: pointer;
    border: 2px solid transparent;
}

.platform-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.25);
}

.platform-btn:active {
    transform: translateY(-1px);
}

.btn-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    text-align: center;
    width: 100%;
}

.btn-platform {
    font-size: 1.4rem;
    font-weight: 700;
    color: #1a1a1a;
    letter-spacing: 0.5px;
}

.btn-label {
    font-size: 0.95rem;
    color: #666;
    font-weight: 500;
}

/* Android Button */
.android-btn {
    background: linear-gradient(135deg, #ffffff 0%, #f5f5f5 100%);
    border-color: #34A853;
}

.android-btn:hover {
    border-color: #2d8e47;
    background: linear-gradient(135deg, #ffffff 0%, #f0f0f0 100%);
}

.android-btn .btn-platform {
    color: #34A853;
}

/* iOS Button */
.ios-btn {
    background: linear-gradient(135deg, #ffffff 0%, #f5f5f5 100%);
    border-color: #007AFF;
}

.ios-btn:hover {
    border-color: #0051D5;
    background: linear-gradient(135deg, #ffffff 0%, #f0f0f0 100%);
}

.ios-btn .btn-platform {
    color: #007AFF;
}

/* App Info */
.app-info {
    margin-top: 2rem;
    font-size: 0.95rem;
    color: rgba(255, 255, 255, 0.8);
    animation: fadeInUp 0.8s ease-out 1s both;
}

/* Minimal Footer */
.minimal-footer {
    text-align: center;
    color: rgba(255, 255, 255, 0.8);
    padding: 1.5rem 1rem;
    font-size: 0.9rem;
}

.minimal-footer p {
    margin: 0.3rem 0;
}

/* In-App Browser Warning */
.in-app-browser-warning {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    padding: 1rem;
}

.warning-content {
    background: white;
    border-radius: 16px;
    padding: 2rem;
    max-width: 400px;
    width: 100%;
    text-align: center;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
}

.warning-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.warning-title {
    font-size: 1.5rem;
    font-weight: bold;
    color: #1a1a1a;
    margin-bottom: 1rem;
}

.warning-text {
    font-size: 1rem;
    color: #666;
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.warning-close {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    padding: 0.875rem 2rem;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    width: 100%;
}

.warning-close:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
}

.warning-close:active {
    transform: translateY(0);
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .app-icon {
        width: 100px;
        height: 100px;
        margin-bottom: 1.5rem;
    }

    .app-title {
        font-size: 2.5rem;
    }

    .app-tagline {
        font-size: 1.4rem;
    }

    .app-description {
        font-size: 1rem;
        margin-bottom: 2.5rem;
    }

    .benefits-section {
        padding: 1.5rem 2rem;
        margin-bottom: 2.5rem;
        max-width: 100%;
    }

    .benefits-title {
        font-size: 1.2rem;
        margin-bottom: 1.2rem;
    }

    .benefits-list li {
        font-size: 0.95rem;
        margin-bottom: 1rem;
    }

    .platform-buttons {
        max-width: 100%;
    }

    .platform-btn {
        padding: 1.3rem 2rem;
    }

    .btn-platform {
        font-size: 1.2rem;
    }

    .btn-label {
        font-size: 0.9rem;
    }
}

@media (max-width: 480px) {
    .app-container {
        padding: 1.5rem 1rem;
    }

    .app-icon {
        width: 80px;
        height: 80px;
    }

    .app-title {
        font-size: 2rem;
    }

    .app-tagline {
        font-size: 1.2rem;
    }

    .app-description {
        font-size: 0.95rem;
    }

    .benefits-section {
        padding: 1.2rem 1.5rem;
        margin-bottom: 2rem;
    }

    .benefits-title {
        font-size: 1.1rem;
        margin-bottom: 1rem;
    }

    .benefits-list li {
        font-size: 0.9rem;
        margin-bottom: 0.9rem;
        padding-left: 1.8rem;
    }

    .benefits-list li::before {
        font-size: 1.2rem;
    }

    .platform-btn {
        padding: 1.2rem 1.8rem;
    }

    .btn-platform {
        font-size: 1.1rem;
    }

    .btn-label {
        font-size: 0.85rem;
    }

    .minimal-footer {
        font-size: 0.85rem;
    }
}

/* Landscape Mobile */
@media (max-height: 600px) and (orientation: landscape) {
    .app-container {
        padding: 1rem;
    }

    .app-icon {
        width: 60px;
        height: 60px;
        margin-bottom: 1rem;
    }

    .app-title {
        font-size: 1.8rem;
        margin-bottom: 0.3rem;
    }

    .app-tagline {
        font-size: 1rem;
        margin-bottom: 0.5rem;
    }

    .app-description {
        font-size: 0.85rem;
        margin-bottom: 1.5rem;
    }

    .benefits-section {
        padding: 1rem 1.5rem;
        margin-bottom: 1.5rem;
    }

    .benefits-title {
        font-size: 1rem;
        margin-bottom: 0.8rem;
    }

    .benefits-list li {
        font-size: 0.85rem;
        margin-bottom: 0.7rem;
        line-height: 1.4;
    }

    .platform-buttons {
        gap: 0.7rem;
    }

    .platform-btn {
        padding: 0.7rem 1rem;
    }

    .app-info {
        margin-top: 1rem;
        font-size: 0.85rem;
    }

    .minimal-footer {
        padding: 1rem;
        font-size: 0.8rem;
    }
}