* {
    box-sizing: border-box;
}

body {
    font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial;
    margin: 0;
    background: #f5f7fb;
    color: #222;

    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.toolbar {
    display: flex;
    gap: 10px;
    align-items: center;
    margin: 10px;
}

textarea {
    width: 100%;
    height: 180px;
    padding: 10px;
    font-family: monospace;
}

.tools {
    display: flex;
    gap: 20px;
}

.group {
    background: white;
    padding: 15px;
    border-radius: 6px;
    flex: 1;
}

.group-title {
    font-weight: bold;
    display: block;
    margin-bottom: 10px;
}

button {
    padding: 8px 14px;
    font-size: 14px;
    font-weight: 500;

    background: #0ea5e9;
    color: white;

    border: none;
    border-radius: 6px;

    cursor: pointer;

    transition: all 0.2s;
}

button:hover {
    background: #0284c7;
}

button:active {
    transform: scale(0.97);
}

button:disabled {
    background: #ccc;
    cursor: not-allowed;
}

.file-btn {
    background: #0077ff;
    color: white;
    padding: 8px 12px;
    cursor: pointer;
}

.actions {
    margin-top: 10px;
}

.seo {
    max-width: 900px;
    margin: auto;
    padding: 30px 20px;
    background: white;
}


.container {
    flex: 1;
    max-width: 1000px;
    min-width: 900px;
    margin: auto;
    padding: 40px 20px;
}

h1 {
    font-size: 36px;
    margin-bottom: 10px;
    font-weight: 700;
}

h2 {
    font-size: 28px;
    margin-top: 30px;
    margin-bottom: 12px;
    font-weight: 600;
}

h3 {
    font-size: 22px;
    margin-top: 24px;
    margin-bottom: 10px;
    font-weight: 600;
}

h4 {
    font-size: 18px;
    margin-top: 20px;
    margin-bottom: 8px;
    font-weight: 600;
}

h5 {
    font-size: 16px;
    margin-top: 16px;
    margin-bottom: 6px;
}

h6 {
    font-size: 14px;
    margin-top: 14px;
    margin-bottom: 6px;
    color: #666;
}

p {
    color: #555;
    line-height: 1.6;
    margin-bottom: 14px;
}

label {
    font-size: 14px;
    font-weight: 500;
    color: #444;
}

select {
    padding: 6px 10px;
    border-radius: 6px;
    border: 1px solid #ccc;
    font-size: 14px;
}

.tool-list {
    margin-top: 30px;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.tool-card {
    background: white;
    border-radius: 8px;
    padding: 20px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
    transition: 0.2s;
}

.tool-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 15px rgba(0, 0, 0, 0.1);
}

.tool-card a {
    text-decoration: none;
    font-weight: 600;
    color: #333;
}

.tool-card p {
    font-size: 14px;
    margin-top: 6px;
}

.footer {
    margin-top: 60px;
    text-align: center;
    padding: 25px;
    background: #eee;
    color: #555;
}


.header {
    background: #111;
    position: sticky;
    top: 0;
    overflow: hidden;
    
}

.nav-container {
    max-width: 1000px;
    margin: auto;
    padding: 16px 20px;
    
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 22px;
    font-weight: 700;
    color: white;
}

.logo a{
    font-size:22px;
    font-weight:700;
    text-decoration:none;
    color:white;
    letter-spacing:0.5px;
}

.logo a:hover{
    opacity:0.9;
}

.menu a {
    color: #ddd;
    text-decoration: none;
    margin-left: 24px;
    font-size: 16px;
}

.menu a:hover {
    color: white;
}

@media (max-width: 600px) {
    .tool-list {
        grid-template-columns: 1fr;
    }
}