/**
 * DripSafe Theme - Footer Styles
 * 优化版本：现代化4栏布局
 */

/* Footer主体 */
.ds-footer {
    background: linear-gradient(180deg, var(--ds-bg-secondary, #f8fafc) 0%, var(--ds-bg-primary, #ffffff) 100%);
    padding: 60px 0 30px;
    margin-top: 60px;
    border-top: 1px solid var(--ds-border, #e5e7eb);
}

[data-theme="dark"] .ds-footer {
    background: linear-gradient(180deg, #1a1a2e 0%, #16213e 100%);
    border-top-color: rgba(255, 255, 255, 0.1);
}

/* Footer网格布局 */
.ds-footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
    padding-bottom: 40px;
    border-bottom: 1px solid var(--ds-border, #e5e7eb);
}

[data-theme="dark"] .ds-footer-grid {
    border-bottom-color: rgba(255, 255, 255, 0.1);
}

/* 品牌信息 */
.ds-footer-brand {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.ds-footer-logo {
    height: 40px;
    width: auto;
}

.ds-footer-brand__desc {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.ds-footer-tagline-1 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--ds-text-primary, #1f2937);
}

[data-theme="dark"] .ds-footer-tagline-1 {
    color: #ffffff;
}

.ds-footer-tagline-2 {
    font-size: 0.875rem;
    color: var(--ds-text-secondary, #6b7280);
}

/* 链接栏 */
.ds-footer-links__title {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--ds-text-primary, #1f2937);
    margin-bottom: 16px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

[data-theme="dark"] .ds-footer-links__title {
    color: #ffffff;
}

.ds-footer-links__list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.ds-footer-links__list li {
    margin-bottom: 8px;
}

.ds-footer-links__list a {
    color: var(--ds-text-secondary, #6b7280);
    text-decoration: none;
    font-size: 0.875rem;
    transition: color 0.2s ease;
}

.ds-footer-links__list a:hover {
    color: var(--ds-primary, #0066CC);
}

[data-theme="dark"] .ds-footer-links__list a {
    color: rgba(255, 255, 255, 0.7);
}

[data-theme="dark"] .ds-footer-links__list a:hover {
    color: #00D4FF;
}

/* 底部版权栏 */
.ds-footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
    padding-top: 20px;
}

.ds-footer-friends {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
}

.ds-footer-friends-label {
    font-size: 0.75rem;
    color: var(--ds-text-secondary, #6b7280);
}

[data-theme="dark"] .ds-footer-friends-label {
    color: rgba(255, 255, 255, 0.5);
}

.ds-footer-friends a {
    font-size: 0.75rem;
    color: var(--ds-text-secondary, #6b7280);
    text-decoration: none;
    transition: color 0.2s ease;
}

.ds-footer-friends a:hover {
    color: var(--ds-primary, #0066CC);
}

[data-theme="dark"] .ds-footer-friends a {
    color: rgba(255, 255, 255, 0.6);
}

[data-theme="dark"] .ds-footer-friends a:hover {
    color: #00D4FF;
}

.ds-footer-copyright {
    font-size: 0.75rem;
    color: var(--ds-text-secondary, #6b7280);
}

[data-theme="dark"] .ds-footer-copyright {
    color: rgba(255, 255, 255, 0.5);
}

.ds-footer-copyright p {
    margin: 0;
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .ds-footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 30px;
    }

    .ds-footer-brand {
        grid-column: span 2;
        flex-direction: row;
        align-items: center;
    }
}

@media (max-width: 768px) {
    .ds-footer {
        padding: 40px 0 20px;
        margin-top: 40px;
    }

    .ds-footer-grid {
        grid-template-columns: 1fr;
        gap: 24px;
        margin-bottom: 30px;
        padding-bottom: 30px;
    }

    .ds-footer-brand {
        grid-column: span 1;
        flex-direction: column;
        text-align: center;
    }

    .ds-footer-brand__desc {
        align-items: center;
    }

    .ds-footer-links {
        text-align: center;
    }

    .ds-footer-links__list {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        gap: 8px 16px;
    }

    .ds-footer-links__list li {
        margin-bottom: 0;
    }

    .ds-footer-bottom {
        flex-direction: column;
        text-align: center;
    }

    .ds-footer-friends {
        justify-content: center;
    }
}