:root {
    --primary-color: #006080;
    --secondary-color: #009ABF;
    --text-color: #2D2D2D;
    --bg-color: #F4F7F9;
    --white: #FFFFFF;
    --gray-light: #E0E0E0;
    --gray-dark: #474747;
    --error-color: #E33D51;
    --success-color: #76BD22;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    margin: 0;
    padding: 0;
    line-height: 1.5;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

header {
    background-color: var(--primary-color);
    border-bottom: 1px solid rgba(255,255,255,0.1);
    padding: 10px 0;
    margin-bottom: 30px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

header .container {
    display: flex;
    align-items: center;
    padding-top: 0;
    padding-bottom: 0;
}

.logo img {
    height: 40px;
    vertical-align: middle;
}

nav ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    margin-left: 40px;
}

nav li {
    margin-right: 20px;
}

nav a {
    text-decoration: none;
    color: rgba(255,255,255,0.8);
    font-weight: 500;
    padding: 5px 10px;
    border-radius: 4px;
    transition: background-color 0.2s, color 0.2s;
}

nav a:hover {
    background-color: rgba(255,255,255,0.1);
    color: var(--white);
}

nav a.active {
    color: var(--primary-color);
    background-color: var(--white);
}

.badge {
    display: inline-block;
    min-width: 18px;
    padding: 1px 6px;
    margin-left: 4px;
    border-radius: 10px;
    background-color: rgba(255,255,255,0.25);
    color: var(--white);
    font-size: 0.75em;
    font-weight: 600;
    line-height: 1.4;
    text-align: center;
    vertical-align: middle;
}

nav a.active .badge {
    background-color: var(--primary-color);
    color: var(--white);
}

.badge.badge-error {
    background-color: #e74c3c;
    color: var(--white);
}

h1, h2, h3 {
    color: var(--primary-color);
}

table {
    width: 100%;
    border-collapse: collapse;
    background-color: var(--white);
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
    margin-bottom: 20px;
    border-radius: 8px;
    overflow: hidden;
}

th {
    background-color: var(--primary-color);
    color: var(--white);
    text-align: left;
    padding: 12px 15px;
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 0.05em;
}

td {
    padding: 12px 15px;
    border-bottom: 1px solid var(--gray-light);
}

tr:last-child td {
    border-bottom: none;
}

tr:nth-child(even) {
    background-color: #fcfcfc;
}

tr:hover {
    background-color: #f5f5f5;
}

/* Login Page Styles */
.login-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 60vh;
}

.login-card {
    background-color: var(--white);
    padding: 40px;
    border-radius: 12px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.1);
    width: 100%;
    max-width: 400px;
    text-align: center;
}

.login-logo {
    margin-bottom: 30px;
    padding: 20px;
    background-color: var(--primary-color);
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 100px;
    height: 100px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.1);
}

.login-logo img {
    height: 50px;
    max-width: 100%;
}

.login-card h2 {
    margin-bottom: 30px;
    font-size: 1.5rem;
}

.login-form {
    text-align: left;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--gray-dark);
}

.form-control {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--gray-light);
    border-radius: 6px;
    font-size: 1rem;
    box-sizing: border-box;
    transition: border-color 0.2s;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
}

.btn {
    display: inline-block;
    width: 100%;
    padding: 12px;
    font-size: 1rem;
    font-weight: 600;
    text-align: center;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    transition: background-color 0.2s;
}

.btn-primary {
    background-color: var(--primary-color);
    color: var(--white);
}

.btn-primary:hover {
    background-color: var(--secondary-color);
}

.login-form .error {
    background-color: #ffebee;
    color: var(--error-color);
    padding: 10px;
    border-radius: 4px;
    margin-bottom: 20px;
    font-size: 0.9rem;
    border: 1px solid #ffcdd2;
}

footer {
    margin-top: 50px;
    padding: 20px 0;
    border-top: 1px solid var(--gray-light);
    color: var(--gray-dark);
    font-size: 0.9rem;
}

hr {
    border: 0;
    border-top: 1px solid var(--gray-light);
    margin: 20px 0;
}

.card {
    background-color: var(--white);
    border-radius: 8px;
    padding: 20px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
    margin-bottom: 20px;
}

.notes {
    background-color: #f9f9f9;
    border-left: 4px solid var(--secondary-color);
    padding: 15px;
    margin-top: 30px;
    font-size: 0.9rem;
    color: var(--gray-dark);
    border-radius: 0 4px 4px 0;
}

.notes ul {
    margin: 5px 0 0 20px;
    padding: 0;
}

@media (max-width: 768px) {
    header .container {
        flex-direction: column;
        align-items: flex-start;
    }
    
    nav ul {
        margin-left: 0;
        margin-top: 15px;
        flex-wrap: wrap;
    }
    
    nav li {
        margin-bottom: 10px;
    }
}

/* --- Uživatelská dokumentace (záložka DOC) --- */
.doc-content {
    max-width: 900px;
    margin: 0 auto;
    background: var(--white);
    padding: 32px 40px;
    border-radius: 8px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
    line-height: 1.65;
    font-size: 16px;
}

.doc-content .doc-loading {
    color: var(--gray-dark);
    font-style: italic;
}

.doc-content h1 {
    font-size: 2em;
    color: var(--primary-color);
    margin: 0 0 0.6em;
    padding-bottom: 0.3em;
    border-bottom: 3px solid var(--secondary-color);
}

.doc-content h2 {
    font-size: 1.5em;
    color: var(--primary-color);
    margin: 1.8em 0 0.6em;
    padding-bottom: 0.25em;
    border-bottom: 1px solid var(--gray-light);
}

.doc-content h3 {
    font-size: 1.2em;
    color: var(--gray-dark);
    margin: 1.4em 0 0.5em;
}

.doc-content p {
    margin: 0.7em 0;
}

.doc-content a {
    color: var(--secondary-color);
}

.doc-content code {
    background: var(--bg-color);
    border: 1px solid var(--gray-light);
    border-radius: 4px;
    padding: 1px 5px;
    font-size: 0.9em;
    font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
}

.doc-content pre.mermaid {
    background: transparent;
    border: none;
    text-align: center;
    margin: 1.5em 0;
}

.doc-content pre.mermaid svg {
    max-width: 100%;
    height: auto;
}

.doc-content blockquote {
    margin: 1.2em 0;
    padding: 0.6em 1.2em;
    border-left: 4px solid var(--secondary-color);
    background: var(--bg-color);
    border-radius: 0 6px 6px 0;
    color: var(--gray-dark);
}

.doc-content blockquote p {
    margin: 0.3em 0;
}

.doc-content table {
    border-collapse: collapse;
    width: 100%;
    margin: 1.2em 0;
    font-size: 0.95em;
}

.doc-content th,
.doc-content td {
    border: 1px solid var(--gray-light);
    padding: 8px 12px;
    text-align: left;
    vertical-align: top;
}

.doc-content thead th {
    background: var(--primary-color);
    color: var(--white);
}

.doc-content tbody tr:nth-child(even) {
    background: var(--bg-color);
}

.doc-content hr {
    border: none;
    border-top: 1px solid var(--gray-light);
    margin: 2em 0;
}

.doc-content ul,
.doc-content ol {
    padding-left: 1.5em;
}

.doc-content li {
    margin: 0.3em 0;
}