/* Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
:root {
    --app-height: 100dvh;
    --safe-area-bottom: env(safe-area-inset-bottom, 0px);
}
html {
    width: 100%;
    height: 100%;
    height: -webkit-fill-available;
    overflow: hidden;
}
body {
    font-family: 'Poppins', sans-serif;
    width: 100%;
    height: var(--app-height);
    min-height: 100vh;
    overflow: hidden;
    background: #fff;
}

/* Iframe Container */
.iframe-wrapper {
    position: fixed;
    top: 0;
    right: 0;
    bottom: auto;
    left: 0;
    width: 100%;
    height: var(--app-height);
    padding-bottom: var(--safe-area-bottom);
    background: #fff;
}
.iframe-container {
    position: relative;
    width: 100%;
    height: 100%;
    overflow: hidden;
    background: #fff;
}
iframe {
    display: block;
    width: 100%;
    height: 100%;
    border: none;
    transition: opacity 0.3s ease;
}
.loading-indicator {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    background: rgba(255, 255, 255, 0.9);
    color: #3498db;
    font-weight: 600;
    animation: pulse 1.5s infinite;
    opacity: 1;
    transition: opacity 0.3s ease;
}
@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
}
.loader-dots {
    animation: dot-pulse 1.4s infinite;
}
@keyframes dot-pulse {
    0% { opacity: 0; }
    50% { opacity: 1; }
    100% { opacity: 0; }
}