/* ============================================================================
   TOAST NOTIFICATION - stylesheet
   ----------------------------------------------------------------------------
   Vị trí: góc trên bên phải, fixed.
   4 loại: success / error / warning / info.
   Slide-in từ phải, mờ dần khi đóng.
   Progress bar chạy ngang, dừng khi hover.
   ============================================================================ */

/* ----- Container ---------------------------------------------------- */
.toast-stack {
    position: fixed;
    top: 18px;
    right: 18px;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 10px;
    pointer-events: none;
    max-width: min(300px, calc(100vw - 24px));
    width: 300px;
}
.toast-stack > .toast { pointer-events: auto; }

@media (max-width: 768px) {
    .toast-stack {
        top: 10px;
        right: 10px;
        left: 10px;
        width: auto;
        max-width: calc(100vw - 20px);
        gap: 8px;
    }
    .toast {
        padding: 8px 10px 12px;
        border-radius: 8px;
        gap: 4px;
    }
    .toast__title {
        font-size: 0.85rem;
        gap: 6px;
    }
    .toast__icon {
        width: 18px;
        height: 18px;
    }
    .toast__message {
        font-size: 0.8rem;
        line-height: 1.4;
    }
    .toast__close {
        font-size: 1.1rem;
    }
    .toast__progress {
        height: 2px;
    }
}

/* ----- Toast item --------------------------------------------------- */
.toast {
    position: relative;
    display: flex;
    flex-direction: column;
    gap: 5px;
    padding: 10px 12px 14px;
    background: #ffffff;
    color: #1f2937;
    border-radius: 10px;
    box-shadow:
        0 8px 18px -6px rgba(0, 0, 0, 0.18),
        0 4px 8px -4px rgba(0, 0, 0, 0.12);
    overflow: hidden;
    border-left: 4px solid #6b7280;
    transform: translateX(120%);
    opacity: 0;
    transition:
        transform 0.35s cubic-bezier(0.22, 1, 0.36, 1),
        opacity   0.35s ease;
    will-change: transform, opacity;
    font-family: inherit;
}
.toast.is-visible {
    transform: translateX(0);
    opacity: 1;
}
.toast.is-leaving {
    transform: translateX(120%);
    opacity: 0;
    transition:
        transform 0.3s ease-in,
        opacity   0.3s ease-in;
}

/* ----- Header (title + close) -------------------------------------- */
.toast__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}
.toast__title {
    font-size: 0.95rem;
    font-weight: 700;
    line-height: 1.25;
    margin: 0;
    display: flex;
    align-items: center;
    gap: 8px;
}
.toast__icon {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}
.toast__icon svg { width: 100%; height: 100%; display: block; }

.toast__close {
    appearance: none;
    background: transparent;
    border: 0;
    color: #6b7280;
    cursor: pointer;
    padding: 2px 4px;
    font-size: 1.25rem;
    line-height: 1;
    border-radius: 4px;
    transition: background 0.15s, color 0.15s;
}
.toast__close:hover { background: rgba(0, 0, 0, 0.06); color: #111827; }
.toast__close:focus-visible {
    outline: 2px solid currentColor;
    outline-offset: 2px;
}

/* ----- Body (message) ---------------------------------------------- */
.toast__message {
    font-size: 0.875rem;
    line-height: 1.45;
    color: #4b5563;
    margin: 0;
    word-wrap: break-word;
}

/* ----- Progress bar (footer) --------------------------------------- */
.toast__progress {
    position: absolute;
    bottom: 0;
    left: 0;
    height: 3px;
    width: 100%;
    background: currentColor; /* màu sẽ do .toast--{type} set */
    transform-origin: left center;
    transform: scaleX(1);
    transition: transform 0.1s linear;
    opacity: 0.85;
}
.toast.is-paused .toast__progress {
    /* Dừng không cho chạy thêm - JS sẽ giữ transform cũ */
    /* Không có transition ở trạng thái paused */
    transition: none;
}

/* ----- Type variants ----------------------------------------------- */
.toast--general,
.toast--success,
.toast--error,
.toast--warning,
.toast--info {
    border-left-color: #00abff;
    color: #1f5381;
}
.toast--success .toast__progress { background: #10b981; }
.toast--success .toast__title   { color: #065f46; }
.toast--success .toast__message { color: #375a53; }

.toast--error .toast__progress { background: #ef4444; }
.toast--error .toast__title   { color: #991b1b; }
.toast--error .toast__message { color: #7f1d1d; }

.toast--warning .toast__progress { background: #f59e0b; }
.toast--warning .toast__title   { color: #92400e; }
.toast--warning .toast__message { color: #78350f; }

.toast--info .toast__progress { background: #00abff; }
.toast--info .toast__title   { color: #1f5381; }
.toast--info .toast__message { color: #4a5568; }

.toast--general .toast__progress { background: #00abff; }
.toast--general .toast__title   { color: #1f5381; }
.toast--general .toast__message { color: #4a5568; }

/* ----- Reduced motion ---------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
    .toast,
    .toast.is-leaving { transition: opacity 0.2s ease; transform: none; }
}