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

[data-bs-theme="light"] {
    --sidebar-bg: #1a1a2e;
    --sidebar-text: #e4e4e7;
    --sidebar-hover: #16213e;
    --sidebar-active: #667eea;
}

[data-bs-theme="dark"] {
    --sidebar-bg: #0f0f1a;
    --sidebar-text: #e4e4e7;
    --sidebar-hover: #1a1a2e;
    --sidebar-active: #667eea;
}

body {
    min-height: 100vh;
    background-color: var(--bs-body-bg);
}

.app {
    min-height: 100vh;
}

.sidebar {
    width: 260px;
    background-color: var(--sidebar-bg);
    color: var(--sidebar-text);
    display: flex;
    flex-direction: column;
    position: fixed;
    left: 0;
    top: 0;
    height: 100vh;
    z-index: 1050;
    transition: transform 0.3s ease;
}

.sidebar-header {
    padding: 20px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.sidebar-title {
    transition: opacity 0.2s;
}

.sidebar.collapsed .sidebar-title {
    opacity: 0;
    width: 0;
    overflow: hidden;
}

.sidebar.collapsed {
    width: 60px;
}

.sidebar.collapsed .nav-category,
.sidebar.collapsed .nav-item span,
.sidebar.collapsed .sidebar-footer > *:not(.d-flex),
.sidebar.collapsed .lang-selector {
    display: none;
}

.sidebar.collapsed .sidebar-footer {
    padding: 10px;
}

.sidebar.collapsed .lang-selector {
    display: none;
}

.sidebar.collapsed .d-flex.gap-2 {
    flex-direction: column;
}

.sidebar.collapsed .d-flex.gap-2 .btn {
    padding: 8px;
}

.sidebar.collapsed .d-flex.gap-2 .btn span {
    display: none;
}

.sidebar.collapsed .d-flex.gap-2 .btn i {
    margin: 0;
}

.sidebar-content {
    flex: 1;
    overflow-y: auto;
    padding: 10px 0;
}

.sidebar-footer {
    padding: 15px 20px;
    border-top: 1px solid rgba(255,255,255,0.1);
}

.nav-category {
    padding: 10px 20px 5px;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: rgba(255,255,255,0.5);
    font-weight: 600;
}

.nav-item {
    padding: 5px 15px;
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    gap: 20px;
}

.nav-item:hover {
    background-color: var(--sidebar-hover);
}

.nav-item.active {
    background-color: var(--sidebar-active);
    color: white;
}

.nav-item i {
    font-size: 18px;
    width: 24px;
    text-align: center;
}
}

.sidebar-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    z-index: 1040;
}

.sidebar.collapsed + .sidebar-overlay {
    left: 60px;
}

.main {
    transition: margin-left 0.3s ease;
}

.sidebar.collapsed ~ .main {
    margin-left: 60px;
}

.sidebar-toggle {
    top: 10px;
    left: 10px;
    z-index: 1048;
}

.main {
    margin-left: 260px;
    min-height: 100vh;
    transition: margin-left 0.3s ease;
}

.card {
    border: 1px solid var(--bs-border-color);
    border-radius: 12px;
}

.tool-header {
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--bs-border-color);
}

.tool-header h2 {
    margin-bottom: 4px;
}

.tool-header p {
    color: var(--bs-secondary-color);
    font-size: 14px;
    margin: 0;
}

.form-section {
    display: none;
}

.form-section.active {
    display: block;
}

.type-selector, .mode-selector {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 20px;
}

.type-btn, .mode-btn {
    padding: 8px 16px;
    border: 1px solid var(--bs-border-color);
    background: transparent;
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    color: var(--bs-secondary-color);
    transition: all 0.2s;
}

.type-btn:hover, .mode-btn:hover {
    border-color: #667eea;
    color: #667eea;
}

.type-btn.active, .mode-btn.active {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-color: transparent;
    color: white;
}

.result-box {
    margin-top: 16px;
    padding: 16px;
    background-color: var(--bs-tertiary-bg);
    border-radius: 8px;
    border: 2px dashed var(--bs-border-color);
}

.result-box pre {
    font-family: 'Consolas', 'Monaco', monospace;
    word-break: break-all;
    white-space: pre-wrap;
    margin: 0;
}

.result-actions {
    margin-top: 12px;
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

#qrcode {
    display: inline-block;
    padding: 16px;
    background: white;
    border-radius: 8px;
    margin-bottom: 16px;
}

.result-section {
    text-align: center;
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid var(--bs-border-color);
}

@media (max-width: 991.98px) {
    .sidebar {
        transform: translateX(-100%);
    }
    
    .sidebar.show {
        transform: translateX(0);
    }
    
    .sidebar-overlay.show {
        display: block;
    }
    
    .main {
        margin-left: 0;
    }
}

@media (min-width: 992px) {
    .main {
        margin-left: 260px;
    }
    
    .sidebar.collapsed ~ .main {
        margin-left: 60px;
    }
}

@media (min-width: 992px) {
    .sidebar-toggle, .sidebar-close, #sidebarClose {
        display: none !important;
    }
}