:root {
    --tab-bg: #ffddee;
    --tab-active-bg: #ffccdd;
    --tab-hover-bg: #ffe6f0;
    --tab-color: #333;
    --main-bg: #fff0f5;
    --border-color: #ffbbcc;
    --accent-color: #ff80ab;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Arial', sans-serif;
}

body {
    background-color: #fff5f8;
    color: var(--tab-color);
}

.browser {
    display: flex;
    flex-direction: column;
    height: 100vh;
    overflow: hidden;
}

.browser-header {
    background-color: var(--main-bg);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 16px;
    border-bottom: 1px solid var(--border-color);
}

.browser-logo {
    font-size: 24px;
    font-weight: bold;
    color: var(--accent-color);
    margin-right: 15px;
}

.browser-controls {
    display: flex;
    gap: 16px;
}

.browser-control-btn {
    background: none;
    border: none;
    color: #ff4081;
    cursor: pointer;
    font-size: 18px;
    transition: opacity 0.2s;
}

.browser-control-btn:hover {
    opacity: 0.8;
}

.content-container {
    flex: 1;
    display: flex;
}

.tabs-container {
    display: flex;
    flex-direction: column;
    background-color: var(--main-bg);
    width: 320px;
    height: calc(100vh - 48px);
    overflow-y: auto;
    padding: 10px;
    border-right: 1px solid var(--border-color);
}

.tab {
    display: flex;
    align-items: center;
    background-color: var(--tab-bg);
    padding: 12px;
    margin-bottom: 8px;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.2s;
    position: relative;
    box-shadow: 0 1px 3px rgba(255, 128, 171, 0.1);
}

.tab:hover {
    background-color: var(--tab-hover-bg);
}

.tab.active {
    background-color: var(--tab-active-bg);
    box-shadow: 0 2px 4px rgba(255, 128, 171, 0.2);
}

.tab-icon {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background-color: var(--accent-color);
    margin-right: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 12px;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.tab-title {
    flex-grow: 1;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    color: #444;
}

.tab-close {
    width: 16px;
    height: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    margin-left: 8px;
    font-size: 14px;
    opacity: 0.7;
    transition: opacity 0.2s, background-color 0.2s;
    color: #666;
}

.tab-close:hover {
    opacity: 1;
    background-color: rgba(255, 64, 129, 0.2);
    color: #ff4081;
}

.new-tab {
    display: flex;
    align-items: center;
    background-color: var(--tab-bg);
    padding: 12px;
    margin-bottom: 8px;
    border-radius: 4px;
    cursor: pointer;
    box-shadow: 0 1px 3px rgba(255, 128, 171, 0.1);
    transition: background-color 0.2s;
}

.new-tab:hover {
    background-color: var(--tab-hover-bg);
}

.new-tab-plus {
    margin-right: 10px;
    font-size: 16px;
    color: var(--accent-color);
}

.iframe-container {
    flex: 1;
    position: relative;
    display: none;
}

.iframe-container.active {
    display: block;
}

iframe {
    width: 100%;
    height: 100%;
    border: none;
}

@media (max-width: 768px) {
    .tabs-container {
        width: 250px;
    }
}

@media (max-width: 576px) {
    .content-container {
        flex-direction: column;
    }

    .tabs-container {
        width: 100%;
        height: auto;
        max-height: 200px;
    }
}