/* ===========================================================
   下载弹窗：普通倒计时弹窗 + 危险确认弹窗（Nightly / Debug）
   =========================================================== */

.modal {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background-color: rgba(0,0,0,0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}
.modal.is-open {
    opacity: 1;
    visibility: visible;
}
.modal-content {
    background: var(--md-sys-color-surface-container);
    border-radius: 1rem;
    padding: 0 1.5rem 1.5rem;
    max-width: 480px;
    width: 100%;
    box-shadow: var(--md-sys-elevation-level3, 0 4px 24px rgba(0,0,0,0.12));
    transform: translateY(20px);
    transition: transform 0.3s ease;
    position: relative;
}
.modal.is-open .modal-content {
    transform: translateY(0);
}
.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    padding: 1.5rem 0 0.75rem;
    border-bottom: 1px solid var(--md-sys-color-outline-variant);
}
.modal-body {
    padding: 0 1rem;
}
.countdown-number {
    font-weight: bold;
    color: var(--md-sys-color-primary);
}
.help-section {
    margin-top: 1.5rem;
    padding: 1rem;
    background: var(--md-sys-color-surface-container-high);
    border-radius: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}
.link {
    text-decoration: underline;
    color: var(--md-sys-color-primary);
    font-weight: 600;
}

/* ---------- 弹窗内的版本 / 文件信息 ---------- */
.modal-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.5rem;
    margin: 0.5rem 0 0.75rem;
}
.modal-file {
    font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
    font-size: 0.75rem;
    word-break: break-all;
    color: var(--md-sys-color-on-surface-variant);
}
#modal-warning { margin: 0.75rem 0; }

/* ---------- 危险确认弹窗（Nightly / Debug 构建） ---------- */
.modal--danger {
    background-color: rgba(0, 0, 0, 0.65);
}
.modal--danger .modal-content {
    border: 2px solid var(--md-sys-color-error);
    box-shadow: 0 4px 32px color-mix(in srgb, var(--md-sys-color-error), transparent 65%);
    animation: danger-pop 0.28s ease-out;
}
.modal--danger .modal-header {
    border-bottom-color: var(--md-sys-color-error);
}
.modal--danger .modal-header h2 {
    color: var(--md-sys-color-error);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}
.modal--danger .modal-header h2::before {
    content: "report";
    font-family: "Material Symbols Outlined";
    font-weight: 400;
    font-size: 1.5rem;
    line-height: 1;
    font-feature-settings: "liga";
    -webkit-font-feature-settings: "liga";
    -webkit-font-smoothing: antialiased;
}
@keyframes danger-pop {
    0%   { transform: scale(0.94); }
    60%  { transform: scale(1.01); }
    100% { transform: scale(1); }
}

.modal-confirm {
    margin-top: 1rem;
}
.confirm-check {
    display: flex;
    align-items: flex-start;
    gap: 0.625rem;
    padding: 0.875rem 1rem;
    border-radius: 0.5rem;
    border: 1px solid var(--md-sys-color-error);
    background: color-mix(in srgb, var(--md-sys-color-error-container), transparent 55%);
    cursor: pointer;
    user-select: none;
}
.confirm-check:hover {
    background: color-mix(in srgb, var(--md-sys-color-error-container), transparent 30%);
}

/* 冷却期间：勾选框整体置灰且不可点击 */
.confirm-check.is-locked {
    opacity: 0.5;
    cursor: not-allowed;
    border-color: var(--md-sys-color-outline);
    background: transparent;
}

.confirm-check.is-locked:hover {
    background: transparent;
}

.confirm-check.is-locked input[type="checkbox"] {
    cursor: not-allowed;
}

.confirm-cooldown {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin: 0;
    color: var(--md-sys-color-on-surface-variant);
}

.confirm-cooldown .material-symbols-outlined {
    font-size: 1.25rem;
    color: var(--md-sys-color-error);
}
.confirm-check input[type="checkbox"] {
    flex: 0 0 auto;
    width: 1.15rem;
    height: 1.15rem;
    margin: 0.1rem 0 0;
    accent-color: var(--md-sys-color-error);
    cursor: pointer;
}
.modal-actions {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    gap: 0.5rem;
    margin-top: 1rem;
}
.btn--danger {
    background-color: var(--md-sys-color-error);
    color: var(--md-sys-color-on-error, #fff);
}
.btn--danger:hover {
    background-color: color-mix(in srgb, var(--md-sys-color-error), black 10%);
}
.btn--danger:disabled {
    background-color: color-mix(in srgb, var(--md-sys-color-on-surface), transparent 88%);
    color: color-mix(in srgb, var(--md-sys-color-on-surface), transparent 62%);
    box-shadow: none;
    cursor: not-allowed;
    pointer-events: none;
}

/* ---------- 移动端优化 ---------- */
@media (max-width: 480px) {
    .modal-content {
        margin: 0 1rem;
        padding: 0 1rem 1rem;
    }
    .modal-actions {
        flex-direction: column-reverse;
        align-items: stretch;
    }
    .modal-actions .btn {
        justify-content: center;
    }
}