* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --bg-primary: #202124;
    --bg-secondary: #292a2d;
    --bg-tertiary: #35363a;
    --bg-hover: #3c4043;
    --text-primary: #e8eaed;
    --text-secondary: #9aa0a6;
    --accent: #8ab4f8;
    --border: #5f6368;
    --url-bar-bg: #35363a;
    --content-bg: #ffffff;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    background: #1a1a1a;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
}

.browser-window {
    width: 100%;
    max-width: 1400px;
    height: 90vh;
    background: var(--bg-primary);
    border-radius: 12px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    border: 1px solid var(--border);
}

/* Title Bar */
.title-bar {
    background: var(--bg-secondary);
    padding: 8px 12px;
    display: flex;
    align-items: center;
    gap: 12px;
    border-bottom: 1px solid var(--bg-tertiary);
    -webkit-app-region: drag;
}

.window-controls {
    display: flex;
    gap: 8px;
}

.control {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    cursor: pointer;
}

.control.close { background: #ff5f57; }
.control.minimize { background: #ffbd2e; }
.control.maximize { background: #28ca41; }

.tab-bar {
    display: flex;
    align-items: center;
    gap: 4px;
    flex: 1;
    overflow: hidden;
}

#tabs-container {
    display: flex;
    gap: 2px;
    overflow-x: auto;
    flex: 1;
    scrollbar-width: none;
}

#tabs-container::-webkit-scrollbar {
    display: none;
}

.tab {
    background: var(--bg-primary);
    padding: 6px 8px 6px 12px;
    border-radius: 8px 8px 0 0;
    display: flex;
    align-items: center;
    gap: 8px;
    min-width: 120px;
    max-width: 200px;
    cursor: pointer;
    position: relative;
    transition: background 0.15s;
    flex-shrink: 0;
}

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

.tab.active {
    background: var(--bg-tertiary);
}

.tab-favicon {
    font-size: 14px;
    flex-shrink: 0;
}

.tab-title {
    color: var(--text-primary);
    font-size: 12px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    flex: 1;
}

.tab-close {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    width: 18px;
    height: 18px;
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    transition: opacity 0.15s, background 0.15s, color 0.15s;
    flex-shrink: 0;
    padding: 0;
}

.tab:hover .tab-close,
.tab.active .tab-close {
    opacity: 1;
}

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

.new-tab-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    width: 28px;
    height: 28px;
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: background 0.15s, color 0.15s;
    flex-shrink: 0;
}

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

/* Navigation Bar */
.nav-bar {
    background: var(--bg-primary);
    padding: 8px 12px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-buttons {
    display: flex;
    gap: 4px;
}

.nav-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    padding: 8px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s, color 0.2s;
}

.nav-btn:hover:not(:disabled) {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.nav-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.url-bar-container {
    flex: 1;
    display: flex;
    align-items: center;
    background: var(--url-bar-bg);
    border-radius: 24px;
    padding: 0 12px;
    gap: 8px;
    border: 1px solid transparent;
    transition: border-color 0.2s, background 0.2s;
}

.url-bar-container:focus-within {
    background: var(--bg-secondary);
    border-color: var(--accent);
}

.url-icon {
    font-size: 14px;
}

.url-bar {
    flex: 1;
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-size: 14px;
    padding: 10px 0;
    outline: none;
}

.url-bar::placeholder {
    color: var(--text-secondary);
}

.go-btn {
    background: var(--accent);
    color: var(--bg-primary);
    border: none;
    padding: 6px 16px;
    border-radius: 16px;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: opacity 0.2s;
}

.go-btn:hover {
    opacity: 0.9;
}

.nav-extras {
    display: flex;
    gap: 4px;
}

/* Loading Bar */
.loading-bar {
    height: 3px;
    background: transparent;
    position: relative;
    overflow: hidden;
}

.loading-bar.loading {
    background: var(--bg-tertiary);
}

.loading-bar.loading::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    width: 30%;
    background: var(--accent);
    animation: loading 1.5s ease-in-out infinite;
}

@keyframes loading {
    0% { left: -30%; }
    100% { left: 100%; }
}

/* Content Area */
.content-area {
    flex: 1;
    background: var(--content-bg);
    position: relative;
    overflow: hidden;
}

#content-frame {
    width: 100%;
    height: 100%;
    border: none;
    background: white;
}

/* Status Bar */
.status-bar {
    background: var(--bg-secondary);
    padding: 4px 12px;
    border-top: 1px solid var(--bg-tertiary);
}

#status-text {
    color: var(--text-secondary);
    font-size: 12px;
}

/* Modal */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

.modal.hidden {
    display: none;
}

.modal-content {
    background: var(--bg-secondary);
    border-radius: 12px;
    width: 90%;
    max-width: 480px;
    border: 1px solid var(--border);
    overflow: hidden;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 20px;
    border-bottom: 1px solid var(--bg-tertiary);
}

.modal-header h2 {
    color: var(--text-primary);
    font-size: 18px;
    font-weight: 500;
}

.close-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 24px;
    cursor: pointer;
    padding: 0;
    line-height: 1;
}

.close-btn:hover {
    color: var(--text-primary);
}

.modal-body {
    padding: 20px;
}

.setting-group {
    margin-bottom: 16px;
}

.setting-group label {
    display: block;
    color: var(--text-secondary);
    font-size: 13px;
    margin-bottom: 6px;
}

.setting-group input,
.setting-group select {
    width: 100%;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 10px 12px;
    color: var(--text-primary);
    font-size: 14px;
    outline: none;
}

.setting-group select[size] {
    height: 200px;
    margin-top: 6px;
}

.setting-group select option {
    padding: 8px 12px;
}

#model-search {
    margin-bottom: 0;
}

.setting-group input:focus,
.setting-group select:focus {
    border-color: var(--accent);
}

.save-btn {
    width: 100%;
    background: var(--accent);
    color: var(--bg-primary);
    border: none;
    padding: 12px;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: opacity 0.2s;
}

.save-btn:hover {
    opacity: 0.9;
}

.clear-btn {
    width: 100%;
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border);
    padding: 10px;
    border-radius: 6px;
    font-size: 13px;
    cursor: pointer;
    transition: background 0.2s, color 0.2s;
}

.clear-btn:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.setting-link {
    display: inline-block;
    margin-top: 6px;
    color: var(--accent);
    font-size: 12px;
    text-decoration: none;
}

.setting-link:hover {
    text-decoration: underline;
}

.setting-info {
    margin-top: 16px;
    padding: 12px;
    background: var(--bg-tertiary);
    border-radius: 6px;
}

.setting-info p {
    color: var(--text-secondary);
    font-size: 12px;
    line-height: 1.5;
}

/* Welcome Page Styles (injected into iframe) */
.welcome-page {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    max-width: 600px;
    margin: 80px auto;
    padding: 40px;
    text-align: center;
}

.welcome-page h1 {
    font-size: 48px;
    margin-bottom: 8px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.welcome-page .subtitle {
    color: #666;
    font-size: 18px;
    margin-bottom: 40px;
}

.welcome-page .search-box {
    display: flex;
    gap: 8px;
    margin-bottom: 40px;
}

.welcome-page input {
    flex: 1;
    padding: 16px 20px;
    font-size: 16px;
    border: 2px solid #e0e0e0;
    border-radius: 30px;
    outline: none;
    transition: border-color 0.2s;
}

.welcome-page input:focus {
    border-color: #667eea;
}

.welcome-page .suggestions {
    text-align: left;
}

.welcome-page .suggestions h3 {
    color: #333;
    font-size: 14px;
    margin-bottom: 12px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.welcome-page .suggestion-links {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.welcome-page .suggestion-links a {
    background: #f5f5f5;
    color: #333;
    padding: 8px 16px;
    border-radius: 20px;
    text-decoration: none;
    font-size: 14px;
    transition: background 0.2s;
}

.welcome-page .suggestion-links a:hover {
    background: #e0e0e0;
}

/* Error Page */
.error-page {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    max-width: 500px;
    margin: 100px auto;
    padding: 40px;
    text-align: center;
}

.error-page .error-icon {
    font-size: 64px;
    margin-bottom: 20px;
}

.error-page h1 {
    color: #333;
    font-size: 24px;
    margin-bottom: 12px;
}

.error-page p {
    color: #666;
    line-height: 1.6;
}

/* Mobile Responsive - iPhone 13 mini and similar devices */
@media (max-width: 430px) {
    body {
        padding: 0;
        align-items: stretch;
    }

    .browser-window {
        max-width: 100%;
        height: 100vh;
        height: 100dvh; /* Dynamic viewport height for mobile browsers */
        border-radius: 0;
        border: none;
    }

    /* Title bar adjustments */
    .title-bar {
        padding: 6px 8px;
        gap: 8px;
    }

    .window-controls {
        display: none; /* Hide window controls on mobile */
    }

    .tab-bar {
        gap: 2px;
    }

    .tab {
        min-width: 80px;
        max-width: 120px;
        padding: 5px 6px 5px 10px;
        gap: 6px;
    }

    .tab-title {
        font-size: 11px;
    }

    .tab-favicon {
        font-size: 12px;
    }

    .new-tab-btn {
        width: 24px;
        height: 24px;
    }

    /* Navigation bar adjustments */
    .nav-bar {
        padding: 6px 8px;
        gap: 4px;
        flex-wrap: nowrap;
    }

    .nav-buttons {
        gap: 2px;
    }

    .nav-btn {
        padding: 6px;
    }

    .nav-btn svg {
        width: 14px;
        height: 14px;
    }

    .url-bar-container {
        padding: 0 8px;
        gap: 6px;
        min-width: 0;
        flex: 1;
    }

    .url-icon {
        font-size: 12px;
    }

    .url-bar {
        font-size: 13px;
        padding: 8px 0;
        min-width: 0;
    }

    .go-btn {
        padding: 5px 12px;
        font-size: 12px;
    }

    /* Status bar */
    .status-bar {
        padding: 3px 8px;
    }

    #status-text {
        font-size: 11px;
    }

    /* Modal adjustments */
    .modal-content {
        width: 95%;
        max-width: none;
        margin: 10px;
        max-height: 90vh;
        overflow-y: auto;
    }

    .modal-header {
        padding: 12px 16px;
    }

    .modal-header h2 {
        font-size: 16px;
    }

    .modal-body {
        padding: 16px;
    }

    .setting-group label {
        font-size: 12px;
    }

    .setting-group input,
    .setting-group select {
        padding: 8px 10px;
        font-size: 13px;
    }

    .setting-group select[size] {
        height: 160px;
    }

    .save-btn {
        padding: 10px;
        font-size: 13px;
    }

    .clear-btn {
        padding: 8px;
        font-size: 12px;
    }

    .setting-info p {
        font-size: 11px;
    }
}

/* Extra small devices (iPhone SE, etc.) */
@media (max-width: 375px) {
    .tab {
        min-width: 60px;
        max-width: 100px;
    }

    .go-btn {
        padding: 5px 8px;
    }

    .nav-buttons .nav-btn:nth-child(3),
    .nav-buttons .nav-btn:nth-child(4) {
        display: none; /* Hide refresh and home on very small screens */
    }
}

/* Landscape mode for mobile */
@media (max-height: 500px) and (max-width: 900px) {
    .browser-window {
        height: 100vh;
        height: 100dvh;
    }

    .title-bar {
        padding: 4px 8px;
    }

    .nav-bar {
        padding: 4px 8px;
    }

    .tab {
        padding: 4px 6px 4px 8px;
    }

    .status-bar {
        padding: 2px 8px;
    }
}

/* Toggle switch styles */
.toggle-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.toggle-switch {
    position: relative;
    width: 44px;
    height: 24px;
    flex-shrink: 0;
}

.toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border);
    transition: 0.3s;
    border-radius: 24px;
}

.toggle-slider:before {
    position: absolute;
    content: "";
    height: 18px;
    width: 18px;
    left: 2px;
    bottom: 2px;
    background-color: var(--text-secondary);
    transition: 0.3s;
    border-radius: 50%;
}

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

.toggle-switch input:checked + .toggle-slider:before {
    transform: translateX(20px);
    background-color: var(--bg-primary);
}

.toggle-label {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.toggle-label span:first-child {
    color: var(--text-primary);
    font-size: 14px;
}

.toggle-label span:last-child {
    color: var(--text-secondary);
    font-size: 12px;
}