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

/* Typography */
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background: #f9f9f9;
}

h1, h2, h3 {
    color: #2c3e50;
}

/* Containers */
.container {
    width: 90%;
    max-width: 1100px;
    margin: 0 auto;
    padding: 2rem 0;
}

/* Header */
header {
    background: #4b7bec;
    color: white;
    text-align: center;
    padding: 5rem 0;
}

header .btn {
    display: inline-block;
    margin-top: 1.5rem;
    padding: 0.8rem 1.5rem;
    background: white;
    color: #4b7bec;
    border-radius: 4px;
    text-decoration: none;
    font-weight: bold;
}

/* Features */
#features {
    background: #fff;
    padding: 4rem 0;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.feature {
    background: #ecf0f1;
    padding: 1.5rem;
    border-radius: 6px;
    text-align: center;
}

/* Contact Form */
#contact {
    background: #f1f2f6;
    padding: 4rem 0;
}

form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    max-width: 500px;
    margin: auto;
}

input, textarea {
    padding: 0.75rem;
    border: 1px solid #ccc;
    border-radius: 4px;
    font-size: 1rem;
}

button {
    padding: 0.75rem;
    background: #4b7bec;
    color: white;
    border: none;
    border-radius: 4px;
    font-size: 1rem;
    cursor: pointer;
}

button:hover {
    background: #3867d6;
}

/* Footer */
footer {
    text-align: center;
    padding: 2rem;
    background: #dcdde1;
    font-size: 0.9rem;
    color: #636e72;
}

.login-section {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    background: #f5f6fa;
}

.login-form {
    max-width: 400px;
    margin: auto;
    background: white;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.login-form input {
    padding: 0.75rem;
    font-size: 1rem;
    border: 1px solid #ccc;
    border-radius: 4px;
}

.login-form button {
    padding: 0.75rem;
    background: #4b7bec;
    color: white;
    border: none;
    border-radius: 4px;
    font-size: 1rem;
    cursor: pointer;
}

.login-form button:hover {
    background: #3867d6;
}

.signup-hint {
    text-align: center;
    font-size: 0.9rem;
}

.login-link {
    display: inline-block;
    margin-top: 1rem;
    color: white;
    background: transparent;
    text-decoration: underline;
    font-weight: normal;
}

.schema-list {
    list-style: none;
    padding: 0;
    margin-top: 2rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.schema-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: #ecf0f1;
    padding: 1rem;
    border-radius: 6px;
}

.schema-info h3 {
    margin-bottom: 0.5rem;
}

.schema-actions .btn-small {
    background: #4b7bec;
    color: white;
    padding: 0.5rem 1rem;
    text-decoration: none;
    border-radius: 4px;
    font-size: 0.9rem;
}

.btn-small:hover {
    background: #3867d6;
}

.add-schema {
    margin-top: 2rem;
    text-align: right;
}

form {
    max-width: 600px;
    margin-top: 2rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: bold;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid #ccc;
    border-radius: 4px;
    font-size: 1rem;
}

#xml {
    font-family: monospace;
    white-space: pre;
    background-color: #f0f0f0;
}

.xml-box {
    background-color: #f0f0f0;
    padding: 1rem;
    border-radius: 6px;
    white-space: pre-wrap;
    font-family: monospace;
    margin-top: 1rem;
    overflow-x: auto;
    border: 1px solid #ccc;
}

.schema-actions {
    margin-top: 2rem;
}

.logout-form {
    display: inline-block;
    margin-left: 1rem;
}

.btn-logout {
    background-color: #e74c3c;
    color: white;
    border: none;
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
    border-radius: 4px;
    cursor: pointer;
}

.btn-logout:hover {
    background-color: #c0392b;
}