:root {
    --toast-bg: #ffffff;
    --toast-fg: #1f2937;
    --toast-radius: 14px;
    --toast-shadow: 0 10px 30px -10px rgba(0,0,0,.25), 0 4px 12px rgba(0,0,0,.08);
    --toast-accent-success: #10b981;
    --toast-accent-error: #ef4444;
    --toast-accent-warning: #f59e0b;
    --toast-accent-info: #3b82f6;
    --toast-accent-loading: #8b5cf6;
    --toast-duration: 4000ms;
    --toast-gap: 12px;
    --toast-enter-ms: 350ms;
    --toast-leave-ms: 300ms;
    --toast-enter-from: translateX(-120%);
}

@media (prefers-color-scheme: dark) {
    :root {
        --toast-bg: #1e293b;
        --toast-fg: #e2e8f0;
        --toast-shadow: 0 10px 30px -10px rgba(0,0,0,.6), 0 4px 12px rgba(0,0,0,.4);
    }
}

#toast-container {
    position: fixed;
    top: 20px;
    left: 20px;
    z-index: 999999;
    display: flex;
    flex-direction: column;
    pointer-events: none;
    max-width: min(380px, calc(100vw - 40px));
}

@media (max-width: 480px) {
    :root {
        --toast-enter-from: translateY(-120%); /* mobile: drop in from top */
    }

    #toast-container {
        top: 12px;
        left: 50%;
        transform: translateX(-50%);
        max-width: calc(100vw - 24px);
        width: 100%;
        align-items: center;
    }
}

.toast {
    --accent: var(--toast-accent-info);
    position: relative;
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 14px 16px 14px 18px;
    margin-bottom: var(--toast-gap);
    background: var(--toast-bg);
    color: var(--toast-fg);
    border-radius: var(--toast-radius);
    box-shadow: var(--toast-shadow);
    border: 1px solid rgba(0,0,0,.05);
    overflow: hidden;
    pointer-events: auto;
    cursor: pointer;
    font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
    font-size: 14px;
    line-height: 1.45;
    opacity: 0;
    transform: translateX(var(--toast-enter-from-x));
    will-change: transform, opacity, height;
    transition: transform var(--toast-enter-ms) cubic-bezier(.21,1.02,.73,1), opacity 300ms ease, height var(--toast-leave-ms) ease, margin-bottom var(--toast-leave-ms) ease, padding-top var(--toast-leave-ms) ease, padding-bottom var(--toast-leave-ms) ease, border-width var(--toast-leave-ms) ease;
}

    .toast.toast-visible {
        transform: translateX(0);
        opacity: 1;
    }

@media (prefers-color-scheme: dark) {
    .toast {
        border-color: rgba(255,255,255,.06);
    }
}

.toast.toast-success {
    --accent: var(--toast-accent-success);
}

.toast.toast-error {
    --accent: var(--toast-accent-error);
}

.toast.toast-warning {
    --accent: var(--toast-accent-warning);
}

.toast.toast-info {
    --accent: var(--toast-accent-info);
}

.toast.toast-loading {
    --accent: var(--toast-accent-loading);
}

.toast-icon {
    flex: 0 0 22px;
    width: 22px;
    height: 22px;
    display: grid;
    place-items: center;
    color: var(--accent);
    margin-top: 1px;
}

    .toast-icon svg {
        width: 100%;
        height: 100%;
    }

.toast-content {
    flex: 1;
    min-width: 0;
}

.toast-message {
    font-size: 13px;
    opacity: .85;
    word-wrap: break-word;
}

.toast-progress {
    position: absolute;
    bottom: 0;
    left: 0;
    height: 2px;
    width: 100%;
    background: var(--accent);
    transform-origin: left center;
    opacity: .55;
    animation: toast-progress var(--toast-duration) linear forwards;
}

.toast-loading .toast-progress {
    animation: toast-indeterminate 1.4s ease-in-out infinite;
}

.toast-spinner {
    width: 18px;
    height: 18px;
    border: 2px solid currentColor;
    border-right-color: transparent;
    border-radius: 50%;
    animation: spin .7s linear infinite;
}

@keyframes toast-progress {
    from {
        transform: scaleX(1);
    }

    to {
        transform: scaleX(0);
    }
}

@keyframes toast-indeterminate {
    0% {
        transform: translateX(-100%) scaleX(.35);
    }

    50% {
        transform: translateX(0%) scaleX(.5);
    }

    100% {
        transform: translateX(100%) scaleX(.35);
    }
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}