#startup-loader {
    position: fixed;
    inset: 0;
    z-index: 999999;
    background: linear-gradient(135deg,#f8fafc 0%,#eef2f7 100%);
    display: flex;
    justify-content: center;
    align-items: center;
    transition: all .6s ease;
    font-family: Vazirmatn,sans-serif;
}

.loader-hidden {
    opacity: 0;
    visibility: hidden;
}

.loading-content {
    width: 100%;
    max-width: 420px;
    text-align: center;
    padding: 32px;
}

.loading-logo {
    width: 90px;
    height: 90px;
    margin: auto;
    border-radius: 50%;
    border: 4px solid #e2e8f0;
    border-top-color: #1f6392;
    color: #1f6392;
    font-size: 30px;
    font-weight: 800;
    display: flex;
    justify-content: center;
    align-items: center;
    animation: spin 1.2s linear infinite;
}

.loading-title {
    margin-top: 20px;
    margin-bottom: 6px;
    font-size: 34px;
    font-weight: 800;
    color: #1e293b;
}

    .loading-title span {
        color: #1f6392;
    }

.loading-subtitle {
    color: #94a3b8;
    margin-bottom: 24px;
}

.loading-spinner {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-bottom: 20px;
}

    .loading-spinner span {
        width: 12px;
        height: 12px;
        border-radius: 50%;
        background: #1f6392;
        animation: bounce 1.4s infinite ease-in-out;
    }

        .loading-spinner span:nth-child(2) {
            animation-delay: .2s;
        }

        .loading-spinner span:nth-child(3) {
            animation-delay: .4s;
        }

.loading-progress {
    height: 6px;
    background: #e2e8f0;
    border-radius: 20px;
    overflow: hidden;
}

.loading-progress-fill {
    height: 100%;
    width: 100%;
    background: linear-gradient(90deg,#1f6392,#42a5f5,#1f6392);
    background-size: 200% 100%;
    animation: shine 2s linear infinite;
}

@keyframes spin {
    from {
        transform: rotate(0deg);
    }

    to {
        transform: rotate(360deg);
    }
}

@keyframes bounce {
    0%,80%,100% {
        transform: scale(.3);
        opacity: .4;
    }

    40% {
        transform: scale(1);
        opacity: 1;
    }
}

@keyframes shine {
    from {
        background-position: 200% 0;
    }

    to {
        background-position: -200% 0;
    }
}

/* ── Dark mode (html.app-dark is set pre-boot by the inline script) ── */
html.app-dark #startup-loader {
    background: linear-gradient(135deg, #121826 0%, #1e2538 100%);
}

html.app-dark .loading-logo {
    border-color: #2a3248;
    border-top-color: #4d9eff;
    color: #4d9eff;
}

html.app-dark .loading-title {
    color: #eef2ff;
}

    html.app-dark .loading-title span {
        color: #4d9eff;
    }

html.app-dark .loading-subtitle {
    color: #9aaec9;
}

html.app-dark .loading-spinner span {
    background: #4d9eff;
}

html.app-dark .loading-progress {
    background: #2a3248;
}