/* ==========================================================================
   Toast Notification System — Standalone (matches notification-system.css)
   ========================================================================== */

/* ── Stack container ── */
.toast-stack {
    position: fixed;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 10000;
    display: flex;
    flex-direction: column;
    gap: 10px;
    pointer-events: none;
    max-width: 420px;
    width: calc(100% - 40px);
}

/* ── Individual toast ── */
.toast {
    font-family: 'Vazir', Tahoma, Arial, sans-serif;
    direction: rtl;
    pointer-events: auto;
    display: flex;
    flex-direction: column;
    gap: 0;
    border-radius: 14px;
    background: #fff;
    border: 1px solid rgba(0, 0, 0, 0.08);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.12), 0 2px 8px rgba(0, 0, 0, 0.06);
    overflow: hidden;
    opacity: 0;
    transform: translateY(-16px) scale(0.96);
    transition: all 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
    max-height: 0;
    padding: 0 16px;
    margin: 0;
}
.toast.show {
    opacity: 1;
    transform: translateY(0) scale(1);
    max-height: 200px;
    padding: 14px 16px;
}
.toast.is-closing {
    opacity: 0;
    transform: translateY(-10px) scale(0.95);
    max-height: 0;
    padding: 0 16px;
    transition: all 0.3s ease;
}

/* ── Toast header ── */
.toast__head {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 4px;
}

/* ── Icon circle ── */
.toast__icon {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: 900;
    flex-shrink: 0;
    color: #fff;
}

/* ── Title ── */
.toast__title {
    flex: 1;
    font-size: 14px;
    font-weight: 700;
    color: #0f172a;
}

/* ── Close button ── */
.toast__close {
    width: 28px;
    height: 28px;
    border-radius: 8px;
    border: none;
    background: transparent;
    color: #94a3b8;
    font-size: 18px;
    font-weight: 700;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
    flex-shrink: 0;
    padding: 0;
}
.toast__close:hover {
    background: rgba(0, 0, 0, 0.06);
    color: #475569;
}

/* ── Message ── */
.toast__message {
    font-size: 13.5px;
    color: #475569;
    line-height: 1.6;
    padding-right: 38px;
}

/* ── Timeline (progress bar) ── */
.toast__timeline {
    height: 3px;
    background: rgba(0, 0, 0, 0.04);
    border-radius: 0 0 14px 14px;
    margin-top: 10px;
    overflow: hidden;
}
.toast__timeline span {
    display: block;
    height: 100%;
    width: 100%;
    border-radius: 0 0 14px 14px;
    transform-origin: right;
}
.toast.show .toast__timeline span {
    animation: toast-countdown var(--toast-duration, 4.5s) linear forwards;
}
@keyframes toast-countdown {
    from { transform: scaleX(1); }
    to { transform: scaleX(0); }
}

/* ══════════════════════════════════════════════════════════════════════════
   Variants — success / error / warning / info
   ══════════════════════════════════════════════════════════════════════════ */

.toast--success {
    border-color: rgba(34, 197, 94, 0.18);
}
.toast--success .toast__icon { background: #22c55e; }
.toast--success .toast__title { color: #166534; }
.toast--success .toast__timeline span { background: #22c55e; }

.toast--error {
    border-color: rgba(239, 68, 68, 0.18);
}
.toast--error .toast__icon { background: #ef4444; }
.toast--error .toast__title { color: #991b1b; }
.toast--error .toast__timeline span { background: #ef4444; }

.toast--warning {
    border-color: rgba(245, 158, 11, 0.18);
}
.toast--warning .toast__icon { background: #f59e0b; }
.toast--warning .toast__title { color: #92400e; }
.toast--warning .toast__timeline span { background: #f59e0b; }

.toast--info {
    border-color: rgba(14, 165, 233, 0.18);
}
.toast--info .toast__icon { background: #0ea5e9; }
.toast--info .toast__title { color: #075985; }
.toast--info .toast__timeline span { background: #0ea5e9; }

/* ══════════════════════════════════════════════════════════════════════════
   Dark mode
   ══════════════════════════════════════════════════════════════════════════ */
body.dark-mode .toast {
    background: #1e293b;
    border-color: rgba(255, 255, 255, 0.08);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.35), 0 2px 8px rgba(0, 0, 0, 0.2);
}
body.dark-mode .toast__title { color: #f1f5f9; }
body.dark-mode .toast__message { color: #94a3b8; }
body.dark-mode .toast__close { color: #64748b; }
body.dark-mode .toast__close:hover { background: rgba(255, 255, 255, 0.08); color: #e2e8f0; }
body.dark-mode .toast__timeline { background: rgba(255, 255, 255, 0.06); }