* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
}

body {
    background-color: #f0f2f5;
    overflow-x: hidden;
}

.app-container {
    max-width: 480px;
    margin: 0 auto;
    background-color: white;
    min-height: 100vh;
    position: relative;
    overflow: hidden;
}

.header {
    background-color: transparent;
    padding: 16px 20px 0;
    color: white;
    box-shadow: none;
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    z-index: 10;
}

.app-container {
    position: relative;
}

.header-top {
    display: flex;
    justify-content: center;
    align-items: center;
}

.dana-logo {
    height: 45px;
    width: auto;
}

.header-icons i {
    margin-left: 24px;
    font-size: 22px;
    cursor: pointer;
    transition: opacity 0.2s;
}

.header-icons i:hover {
    opacity: 0.7;
}

.banner-section {
    position: relative;
    margin-top: 0;
    padding-top: 0;
}

.banner {
    margin: 0;
    padding: 0;
}

.banner-img {
    width: 100%;
    height: auto;
    display: block;
}

.popup-modal {
    position: absolute;
    top: 150px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 100;
    width: 75%;
    animation: popupIn 0.3s ease-out;
}

@keyframes popupIn {
    from {
        opacity: 0;
        transform: translate(-50%, -50%) scale(0.9);
    }
    to {
        opacity: 1;
        transform: translate(-50%, -50%) scale(1);
    }
}

.popup-box {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 20px;
    padding: 16px;
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.25),
                0 0 0 1px rgba(255, 255, 255, 0.2) inset;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.popup-header {
    text-align: center;
    color: white;
    margin-bottom: 12px;
    font-size: 12px;
    font-weight: 500;
    line-height: 1.5;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.popup-buttons {
    display: flex;
    flex-direction: column;
    gap: 10px;
    background-color: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: 14px;
    padding: 14px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
}

.popup-btn {
    background: rgba(0, 102, 255, 0.9);
    color: white;
    border: none;
    padding: 12px 18px;
    border-radius: 24px;
    font-weight: 700;
    cursor: pointer;
    font-size: 14px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 8px 25px rgba(0, 102, 255, 0.35);
    letter-spacing: 0.4px;
    text-transform: uppercase;
    font-size: 11px;
}

.popup-btn:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 12px 35px rgba(0, 102, 255, 0.45);
    background: rgba(0, 115, 255, 1);
}

.popup-btn:active {
    transform: translateY(-1px) scale(0.98);
    box-shadow: 0 4px 15px rgba(0, 102, 255, 0.3);
}

.bottom-nav {
    position: fixed;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100%;
    max-width: 480px;
    background-color: white;
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.08);
    border-top: 1px solid #e8e8e8;
}

.nav-bar {
    display: flex;
    justify-content: space-around;
    align-items: center;
    padding: 10px 0;
    padding-bottom: 20px;
}

.nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-decoration: none;
    color: #999;
    font-size: 12px;
    font-weight: 500;
    transition: color 0.2s;
}

.nav-item i {
    font-size: 26px;
    margin-bottom: 4px;
}

.nav-item.active {
    color: #0066ff;
}

.pay-btn {
    background: linear-gradient(135deg, #0066ff 0%, #0088ff 50%, #00aaff 100%);
    width: 75px;
    height: 75px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-top: -35px;
    box-shadow: 0 8px 25px rgba(0, 102, 255, 0.45),
                0 4px 12px rgba(0, 0, 0, 0.15);
    border: 3px solid white;
    transition: all 0.2s ease;
}

.pay-btn:hover {
    transform: scale(1.05);
}

.pay-icon {
    color: white;
    font-weight: 800;
    font-size: 22px;
    letter-spacing: 1px;
}

.footer {
    text-align: center;
    padding: 25px 20px;
    font-size: 11px;
    color: #aaa;
    margin-bottom: 90px;
}