/* Theme Page Styles */

.theme-container {
    max-width: 760px;
    margin: 80px auto;
    padding: 0 24px 80px;
    min-height: calc(100vh - 160px);
}

.theme-content {
    animation: fadeInUp 0.4s cubic-bezier(0.22, 1, 0.36, 1);
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.theme-header {
    text-align: center;
    margin-bottom: 40px;
}

.theme-header h1 {
    font-size: 38px;
    font-weight: 800;
    letter-spacing: -0.03em;
    margin-bottom: 14px;
    color: var(--fg);
}

.theme-header p {
    font-size: 15px;
    color: var(--fg-muted);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.7;
}

.theme-panel {
    padding: 32px;
    border-radius: 22px;
    display: grid;
    gap: 24px;
    border: 1px solid var(--border);
    background: var(--surface);
    box-shadow: 0 20px 60px var(--shadow);
}

.panel-title h2 {
    margin: 0 0 8px;
    font-size: 22px;
    color: var(--fg);
}

.panel-title p {
    margin: 0;
    color: var(--fg-muted);
    line-height: 1.6;
}

.theme-toggle-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 24px;
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.18);
    border: 1px solid var(--border);
}

.theme-toggle-copy {
    display: grid;
    gap: 8px;
}

.theme-toggle-copy strong {
    font-size: 16px;
    color: var(--fg);
}

.theme-toggle-copy span {
    font-size: 14px;
    color: var(--fg-muted);
}

.theme-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    margin-top: 26px;
    color: var(--fg-muted);
    font-size: 14px;
}

.theme-footer .back-btn {
    padding: 12px 20px;
}

@media (max-width: 680px) {
    .theme-container {
        margin-top: 50px;
        padding: 0 18px 60px;
    }

    .theme-toggle-row {
        flex-direction: column;
        align-items: flex-start;
    }
}

    font-weight: 700;
    letter-spacing: -0.01em;
    margin-bottom: 8px;
    color: var(--fg);
}

.theme-description {
    font-size: 14px;
    color: var(--fg-muted);
    margin-bottom: 28px;
}

.theme-panel {
    padding: 32px;
    border-radius: 22px;
    display: grid;
    gap: 24px;
    border: 1px solid var(--border);
    background: var(--surface);
    box-shadow: 0 20px 60px var(--shadow);
}

.theme-toggle-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 24px;
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.18);
    border: 1px solid var(--border);
}

.theme-toggle-row strong {
    display: block;
    font-size: 16px;
    color: var(--fg);
}

.theme-toggle-row span {
    font-size: 14px;
    color: var(--fg-muted);
    display: block;
    line-height: 1.6;
}

.theme-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    margin-top: 26px;
    color: var(--fg-muted);
    font-size: 14px;
}

.theme-footer .back-btn {
    padding: 12px 20px;
}

.setting-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 24px;
    border-radius: 14px;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.setting-item.glass-surface {
    background: var(--surface);
    border: 1px solid var(--border);
}

.setting-info h3 {
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 4px;
    color: var(--fg);
}

.setting-info p {
    font-size: 13px;
    color: var(--fg-muted);
}

.ios-toggle {
    position: relative;
    display: inline-flex;
    width: 48px;
    height: 28px;
    cursor: pointer;
    flex-shrink: 0;
}

.ios-toggle input {
    display: none;
}

.toggle-slider {
    position: absolute;
    inset: 0;
    background: var(--surface-dark);
    border: 1px solid var(--border);
    border-radius: 14px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.toggle-slider::before {
    content: '';
    position: absolute;
    width: 24px;
    height: 24px;
    background: var(--bg-secondary);
    border-radius: 12px;
    top: 1px;
    left: 1px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.ios-toggle input:checked ~ .toggle-slider {
    background: var(--accent);
    border-color: var(--accent);
}

.ios-toggle input:checked ~ .toggle-slider::before {
    transform: translateX(20px);
}

.theme-footer {
    text-align: center;
    padding-top: 40px;
    border-top: 1px solid var(--border);
    margin-top: 60px;
}

.theme-footer p {
    font-size: 13px;
    color: var(--fg-muted);
    margin-bottom: 20px;
}

.back-btn {
    display: inline-block;
    padding: 10px 24px;
    background: var(--accent);
    color: var(--bg-primary);
    border: none;
    border-radius: 8px;
    font-size: 13px;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    font-family: inherit;
    transition: transform 0.15s cubic-bezier(0.4, 0, 0.2, 1);
}

.back-btn:active {
    transform: scale(0.97);
}

@media (max-width: 768px) {
    .theme-container {
        margin: 60px auto 60px;
    }

    .theme-header h1 {
        font-size: 28px;
    }

    .theme-grid {
        grid-template-columns: 1fr;
    }

    .setting-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }

    .ios-toggle {
        align-self: flex-end;
    }
}