/* ===== RESPONSIVE CSS - МОБИЛЬНЫЕ СТИЛИ ===== */

/* ===== MOBILE HEADER ===== */
.mobile-header {
    display: none;
    height: 60px;
    background: #fff;
    border-bottom: 1px solid #e9ecef;
    align-items: center;
    justify-content: space-between;
    padding: 0 16px;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    width: 100%;
    z-index: 100;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.mobile-menu-btn {
    background: none;
    border: none;
    font-size: 28px;
    color: #333;
    cursor: pointer;
    padding: 8px;
    line-height: 1;
    min-width: 44px;
    min-height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    -webkit-user-select: none;
    user-select: none;
}

.mobile-menu-btn:active {
    background: rgba(0, 0, 0, 0.05);
    border-radius: 8px;
}

.mobile-title {
    font-weight: 600;
    font-size: 16px;
    color: #333;
    flex: 1;
    text-align: center;
}

/* ===== MOBILE TABS ===== */
.mobile-tabs {
    display: none;
    height: 50px;
    background: #fff;
    border-bottom: 1px solid #e9ecef;
    align-items: center;
    padding: 0 8px;
    overflow-x: auto;
    position: fixed;
    top: 60px;
    left: 0;
    right: 0;
    width: 100%;
    z-index: 99;
    -webkit-overflow-scrolling: touch;
}

.mobile-tab {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    opacity: 0.5;
    transition: opacity 0.2s;
    cursor: pointer;
    min-width: 60px;
    user-select: none;
}

.mobile-tab:active {
    background: rgba(0, 0, 0, 0.05);
}

.mobile-tab.active {
    opacity: 1;
    border-bottom: 2px solid #667eea;
}

.mobile-tab-icon {
    font-size: 18px;
}

.mobile-tab-label {
    font-size: 10px;
    margin-top: 2px;
    font-weight: 500;
}

/* ===== OVERLAY (для sidebar на мобилке) ===== */
.overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 150;
    opacity: 0;
    transition: opacity 0.3s;
    pointer-events: none;
}

.overlay.visible {
    display: block;
    opacity: 1;
    pointer-events: auto;
}

/* ===== RESPONSIVE BREAKPOINTS ===== */
@media (min-width: 769px) {
    .content-section {
        flex-direction: row;
        align-items: flex-start;
    }

    .section-label {
        min-width: 100px;
        padding-top: 2px;
    }
}