/* Variables */
:root {
    --sn-blue-50: #eff6ff;
    --sn-indigo-50: #eef2ff;
    --sn-blue-100: #dbeafe;
    --sn-indigo-600: #4f46e5;
    --sn-blue-500: #3b82f6;
    --sn-gray-900: #111827;
    --sn-gray-800: #1f2937;
    --sn-gray-600: #4b5563;
    --sn-gray-400: #9ca3af;
}

/* Container */
#sn-container {
    position: fixed;
    bottom: 1.5rem;
    left: 1.5rem;
    z-index: 9999;
    width: 85%;
    max-width: 380px;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    
    /* Animation State: Hidden */
    opacity: 0;
    transform: translateY(50px) scale(0.95);
    transition: opacity 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275),
                transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    pointer-events: none;
}

/* Animation State: Visible */
#sn-container.sn-visible {
    opacity: 1;
    transform: translateY(0) scale(1);
    pointer-events: auto;
}

@media (min-width: 640px) {
    #sn-container {
        width: 100%;
    }
}

/* Card */
.sn-card {
    position: relative;
    background-color: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 1rem;
    padding: 0.75rem;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12), 0 0 0 1px rgba(0, 0, 0, 0.05);
    overflow: hidden;
}

@media (min-width: 640px) {
    .sn-card {
        padding: 1rem;
    }
}

/* Blobs */
.sn-blob {
    position: absolute;
    border-radius: 9999px;
    filter: blur(40px);
    z-index: 0;
}

.sn-blob-blue {
    top: -1rem;
    right: -1rem;
    width: 6rem;
    height: 6rem;
    background-color: rgba(59, 130, 246, 0.1);
}

.sn-blob-purple {
    bottom: -1rem;
    left: -1rem;
    width: 5rem;
    height: 5rem;
    background-color: rgba(168, 85, 247, 0.1);
}

/* Content */
.sn-content {
    position: relative;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    z-index: 1;
}

@media (min-width: 640px) {
    .sn-content {
        gap: 1rem;
    }
}

/* Icon Wrapper */
.sn-icon-wrapper {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
    border-radius: 9999px;
    background: linear-gradient(to bottom right, var(--sn-blue-50), var(--sn-indigo-50));
    box-shadow: inset 0 0 0 1px var(--sn-blue-100);
}

@media (min-width: 640px) {
    .sn-icon-wrapper {
        width: 3rem;
        height: 3rem;
    }
}

.sn-icon {
    width: 1.25rem;
    height: 1.25rem;
    color: var(--sn-indigo-600);
}

@media (min-width: 640px) {
    .sn-icon {
        width: 1.5rem;
        height: 1.5rem;
    }
}

/* Text */
.sn-text {
    flex: 1;
    padding-top: 0.125rem;
}

.sn-title {
    margin: 0;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--sn-gray-900);
    line-height: 1.25;
}

@media (min-width: 640px) {
    .sn-title {
        font-size: 1rem;
    }
}

.sn-message {
    margin: 0.125rem 0 0 0;
    font-size: 0.75rem;
    color: var(--sn-gray-600);
    line-height: 1.5;
}

@media (min-width: 640px) {
    .sn-message {
        margin-top: 0.25rem;
        font-size: 0.875rem;
    }
}

.sn-highlight-indigo {
    font-weight: 500;
    color: var(--sn-indigo-600);
}

.sn-highlight-gray {
    color: var(--sn-gray-800);
}

.sn-highlight-dark {
    font-weight: 500;
    color: var(--sn-gray-900);
}

/* Close Button */
.sn-close-btn {
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.25rem;
    margin-right: -0.25rem;
    color: var(--sn-gray-400);
    transition: color 0.2s;
}

@media (min-width: 640px) {
    .sn-close-btn {
        margin-right: 0;
    }
}

.sn-close-btn:hover {
    color: var(--sn-gray-600);
}

/* Progress Bar */
.sn-progress-bar {
    position: absolute;
    bottom: 0;
    left: 0;
    height: 4px;
    width: 100%; /* Start full width */
    background: linear-gradient(to right, var(--sn-blue-500), var(--sn-indigo-600));
    opacity: 0.2;
    transform-origin: left;
    transform: scaleX(1); /* Default state */
}

/* Animate width using scaleX for better performance */
.sn-visible .sn-progress-bar {
    animation: sn-progress 4s linear forwards;
}

@keyframes sn-progress {
    from { transform: scaleX(1); }
    to { transform: scaleX(0); }
}