.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--overlay-bg);
    backdrop-filter: blur(10px);
    z-index: 1000;
    display: none;
    opacity: 0;
    transition: opacity 0.3s ease;
    align-items: center;
    justify-content: center;
}

.modal-overlay.open {
    display: flex;
    opacity: 1;
}

.modal-window {
    width: 90%;
    max-width: 800px;
    height: 85vh;
    background: var(--glass-bg-dark-strong);
    backdrop-filter: blur(40px) saturate(var(--glass-saturate));
    -webkit-backdrop-filter: blur(40px) saturate(var(--glass-saturate));
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    box-shadow: 0 20px 50px rgba(0,0,0,0.5), inset 0 1px 0 var(--glass-highlight);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    transform: scale(0.95);
    transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.modal-overlay.open .modal-window {
    transform: scale(1);
}

.modal-header {
    padding: 20px 30px;
    border-bottom: 1px solid var(--glass-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--glass-bg);
}

.modal-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
}

.modal-close {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 5px;
    border-radius: 50%;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-close:hover {
    background: var(--hover-bg);
    color: var(--text-primary);
}

.modal-body {
    padding: 30px;
    overflow-y: auto;
    color: var(--text-secondary);
}

.feature-group {
    margin-bottom: 30px;
}

.feature-group-title {
    font-size: 1.1rem;
    color: var(--accent-blue);
    font-weight: 600;
    margin-bottom: 15px;
    border-left: 3px solid var(--accent-blue);
    padding-left: 10px;
}

.feature-list {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 10px;
}

.feature-item {
    padding: 8px;
    border-bottom: 1px solid var(--glass-border);
    font-size: 0.95rem;
    display: flex;
    align-items: flex-start;
}

.feature-item::before {
    content: '•';
    color: var(--accent-green);
    margin-right: 10px;
    font-weight: bold;
}

.modal-window-small {
    max-width: 600px;
    height: auto !important;
    max-height: 90vh;
}

.modal-window-small .modal-body {
    flex: 0 1 auto;
    min-height: auto;
}

.modal-footer {
    padding: 20px 30px;
    border-top: 1px solid var(--separator);
    display: flex;
    gap: 12px;
    justify-content: flex-end;
}

.download-modal-confirm {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    margin-top: 20px;
    padding: 16px 18px;
    border-top: 1px solid var(--separator);
    border-radius: 12px;
    background: var(--hover-bg-soft);
    cursor: pointer;
    color: var(--text-primary);
    font-size: 0.95rem;
    line-height: 1.45;
    transition: background 0.2s ease, box-shadow 0.2s ease;
}
.download-modal-confirm:hover {
    background: var(--glass-bg);
}
.download-modal-confirm:focus-within {
    box-shadow: 0 0 0 2px var(--accent-blue);
}

.download-modal-confirm-input {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.download-modal-confirm-box {
    flex-shrink: 0;
    width: 22px;
    height: 22px;
    margin-top: 2px;
    border: 2px solid var(--glass-border);
    border-radius: 6px;
    background: var(--hover-bg-soft);
    transition: border-color 0.2s ease, background 0.2s ease, transform 0.2s ease;
    position: relative;
}
.download-modal-confirm-box::after {
    content: "";
    position: absolute;
    left: 6px;
    top: 2px;
    width: 6px;
    height: 11px;
    border: solid var(--accent-blue);
    border-width: 0 2px 2px 0;
    transform: scale(0) rotate(45deg);
    transform-origin: center;
    transition: transform 0.25s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}
.download-modal-confirm:hover .download-modal-confirm-box {
    border-color: rgba(255, 255, 255, 0.5);
}
.download-modal-confirm-input:checked + .download-modal-confirm-box {
    border-color: var(--accent-blue);
    background: rgba(10, 132, 255, 0.15);
}
.download-modal-confirm-input:checked + .download-modal-confirm-box::after {
    transform: scale(1) rotate(45deg);
}
.download-modal-confirm-input:focus-visible + .download-modal-confirm-box {
    box-shadow: 0 0 0 2px var(--accent-blue);
}

.download-modal-confirm-text {
    color: var(--text-primary);
    user-select: none;
}

.download-link-disabled {
    opacity: 0.5;
    pointer-events: none;
    cursor: not-allowed;
}

@media (max-width: 768px) {
    .modal-overlay {
        padding: 10px;
        align-items: flex-end;
    }

    .modal-window {
        width: 100%;
        max-width: 100% !important;
        height: auto;
        max-height: 90vh;
        border-radius: 20px 20px 0 0;
        margin: 0;
    }

    .modal-window-small {
        max-width: 100% !important;
    }

    .modal-header {
        padding: 16px 20px;
    }

    .modal-title {
        font-size: 1.2rem;
    }

    .modal-body {
        padding: 20px;
    }

    .modal-footer {
        padding: 16px 20px;
        flex-direction: column;
    }

    .modal-footer .btn-ui {
        width: 100%;
        justify-content: center;
    }

    .feature-list {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .modal-overlay {
        padding: 0;
    }

    .modal-window {
        border-radius: 0;
        max-height: 100vh;
    }

    .modal-header {
        padding: 14px 16px;
    }

    .modal-title {
        font-size: 1.1rem;
    }

    .modal-body {
        padding: 16px;
    }

    .modal-footer {
        padding: 14px 16px;
    }
}