.gradient-bg {
    background: #1e293b;
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
}

.container {
    display: -ms-flexbox;
    display: flex;
    -ms-flex-pack: center;
    justify-content: center;
    -ms-flex-align: center;
    align-items: center;
}

.grid-container {
    display: -ms-grid;
    display: grid;
}

.flex-row {
    display: -ms-flexbox;
    display: flex;
    -ms-flex-direction: row;
    flex-direction: row;
}

.flex-col {
    display: -ms-flexbox;
    display: flex;
    -ms-flex-direction: column;
    flex-direction: column;
}

.box-shadow {
    -webkit-box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

.backdrop-blur {
    background: rgba(30, 41, 59, 0.8);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
}

.text-gradient {
    color: #3b82f6;
}

.border-radius {
    -webkit-border-radius: 8px;
    border-radius: 8px;
}

.transition {
    -webkit-transition: all 0.3s ease;
    -moz-transition: all 0.3s ease;
    -ms-transition: all 0.3s ease;
    -o-transition: all 0.3s ease;
    transition: all 0.3s ease;
}

.browser-warning {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 9999;
    background: #f59e0b;
    color: white;
    padding: 1rem;
    text-align: center;
    font-weight: 500;
}