/* Welcome modal: first-visit overlay card (extracted from inline + JS-injected keyframes). */

@keyframes sl-welcome-fadein {
    from { opacity: 0; }
    to   { opacity: 1; }
}

@keyframes sl-welcome-slidein {
    from { opacity: 0; transform: translateY(20px) scale(0.97); }
    to   { opacity: 1; transform: translateY(0) scale(1); }
}

.sl-welcome-overlay {
    position: fixed;
    inset: 0;
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0,0,0,0.65);
    backdrop-filter: blur(6px);
    animation: sl-welcome-fadein 0.3s ease;
}

.sl-welcome-card {
    width: 480px;
    max-width: 92vw;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0,0,0,0.5);
    position: relative;
    font-family: var(--font-ui);
    animation: sl-welcome-slidein 0.35s ease;
}

.sl-welcome-theme-strip {
    height: 60px;
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border);
    position: relative;
}

.sl-welcome-close {
    position: absolute;
    top: 10px;
    right: 14px;
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 18px;
    cursor: pointer;
    padding: 4px 8px;
    line-height: 1;
    opacity: 0.7;
    transition: opacity 0.15s;
}

.sl-welcome-close:hover {
    opacity: 1;
}

.sl-welcome-titlebar {
    height: 120px;
    background: #ffffff;
    display: flex;
    align-items: center;
    padding: 0 28px;
    gap: 20px;
}

.sl-welcome-logo {
    width: 100px;
    height: 100px;
    object-fit: contain;
    flex-shrink: 0;
    border-radius: 8px;
}

.sl-welcome-title {
    font-size: 24px;
    font-weight: 700;
    color: #1a1a1a;
    line-height: 1.2;
    letter-spacing: -0.3px;
}

.sl-welcome-body {
    background: var(--bg-secondary);
    padding: 24px 28px 20px;
    color: var(--text-primary);
}

.sl-welcome-desc {
    font-size: 14px;
    line-height: 1.6;
    margin: 0 0 16px;
    color: var(--text-secondary);
}

.sl-welcome-legal {
    font-size: 13px;
    line-height: 1.6;
    margin: 0 0 20px;
    color: var(--text-muted);
}

.sl-welcome-legal a {
    color: var(--accent);
    text-decoration: none;
}

.sl-welcome-continue-label {
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 10px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.sl-welcome-navlinks {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-bottom: 20px;
}

.sl-welcome-navlink {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    border-radius: 6px;
    border: 1px solid var(--border);
    background: var(--bg-primary);
    color: var(--text-primary);
    font-size: 14px;
    cursor: pointer;
    text-align: left;
    transition: background 0.15s, border-color 0.15s;
    width: 100%;
}

.sl-welcome-navlink:hover {
    background: var(--bg-hover);
    border-color: var(--accent);
}

.sl-welcome-navlink-icon {
    font-size: 18px;
    flex-shrink: 0;
    width: 24px;
    text-align: center;
}

.sl-welcome-divider {
    height: 1px;
    background: var(--border);
    margin-bottom: 16px;
}

.sl-welcome-checkrow {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 12px;
    color: var(--text-muted);
    cursor: pointer;
    margin-bottom: 6px;
    user-select: none;
}

.sl-welcome-checkbox {
    accent-color: var(--accent);
    cursor: pointer;
}

.sl-welcome-hint {
    font-size: 10px;
    color: var(--text-muted);
    margin-bottom: 16px;
    opacity: 0.7;
}

.sl-welcome-start-btn {
    display: block;
    width: 100%;
    padding: 12px 24px;
    border: none;
    border-radius: 6px;
    background: var(--accent);
    color: #fff;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: opacity 0.15s, transform 0.15s;
}

.sl-welcome-start-btn:hover {
    opacity: 0.9;
    transform: translateY(-1px);
}