:root {
    --color-bg: #F7F9FA;
    --color-surface: #FFFFFF;
    --color-text: #1F2D3D;
    --color-text-muted: #5A6878;
    --color-border: #E1E8ED;
    --color-primary: #2D7A4F;
    --color-primary-hover: #245F3F;
    --color-error: #B3261E;
    --color-error-bg: #FCE8E6;
    --color-warning-bg: #FFF4D6;
    --color-warning-border: #E0B43A;
    --color-success-bg: #E6F4EA;
    --color-success-border: #2D7A4F;
    --radius: 4px;
    --max-width: 600px;
}

* {
    box-sizing: border-box;
}

html, body {
    margin: 0;
    padding: 0;
    background-color: var(--color-bg);
    color: var(--color-text);
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
    font-size: 16px;
    line-height: 1.5;
}

a {
    color: var(--color-primary);
}

a:focus, button:focus, input:focus {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

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

.site-header {
    background-color: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    padding: 16px 24px;
}

.site-header .inner {
    max-width: var(--max-width);
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

.site-header h1 {
    margin: 0;
    font-size: 22px;
}

.site-header a {
    color: var(--color-text);
    text-decoration: none;
}

.site-main {
    flex: 1;
    padding: 32px 16px;
}

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 32px 24px;
}

.container h2 {
    margin: 0 0 16px 0;
    font-size: 24px;
}

.container > p {
    margin-top: 0;
    color: var(--color-text-muted);
}

.field {
    margin-bottom: 16px;
}

.field label {
    display: block;
    margin-bottom: 4px;
    font-weight: 600;
}

.field input {
    width: 100%;
    padding: 10px 12px;
    font-size: 16px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    background-color: #FFFFFF;
    color: var(--color-text);
}

.field .error {
    margin-top: 4px;
    color: var(--color-error);
    font-size: 14px;
}

.btn {
    display: inline-block;
    padding: 12px 24px;
    font-size: 16px;
    font-weight: 600;
    color: #FFFFFF;
    background-color: var(--color-primary);
    border: none;
    border-radius: var(--radius);
    cursor: pointer;
    text-decoration: none;
}

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

.btn-secondary {
    background-color: transparent;
    color: var(--color-primary);
    border: 1px solid var(--color-primary);
}

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

.btn-link {
    background: none;
    border: none;
    color: var(--color-primary);
    cursor: pointer;
    padding: 0;
    font: inherit;
    text-decoration: underline;
}

.alert {
    padding: 12px 16px;
    border-radius: var(--radius);
    margin-bottom: 24px;
    border: 1px solid;
}

.alert-error {
    background-color: var(--color-error-bg);
    border-color: var(--color-error);
    color: var(--color-error);
}

.alert-success {
    background-color: var(--color-success-bg);
    border-color: var(--color-success-border);
    color: var(--color-text);
}

.alert-warning {
    background-color: var(--color-warning-bg);
    border-color: var(--color-warning-border);
    color: var(--color-text);
}

.badge {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 999px;
    font-size: 13px;
    font-weight: 600;
}

.badge-active {
    background-color: var(--color-success-bg);
    color: var(--color-primary);
    border: 1px solid var(--color-success-border);
}

.form-actions {
    margin-top: 24px;
    display: flex;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
}

.muted {
    color: var(--color-text-muted);
    font-size: 14px;
}

.dns-block {
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 16px;
    background-color: #F7F9FA;
    margin: 24px 0;
}

.dns-block h3 {
    margin: 0 0 12px 0;
    font-size: 16px;
}

.dns-hostname {
    display: block;
    font-family: ui-monospace, Menlo, Monaco, "Cascadia Code", monospace;
    font-size: 18px;
    word-break: break-all;
    padding: 12px;
    background-color: #FFFFFF;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    margin-bottom: 12px;
}

.copy-status {
    color: var(--color-primary);
    font-size: 14px;
    font-weight: 600;
    margin-left: 12px;
}

.dashboard-section {
    margin-top: 24px;
}

.dashboard-section h3 {
    font-size: 18px;
    margin: 0 0 12px 0;
}

.tutos-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

.tutos-list a {
    display: block;
    padding: 12px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    text-decoration: none;
    color: var(--color-text);
    font-weight: 600;
}

.tutos-list a:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

@media (max-width: 480px) {
    .tutos-list {
        grid-template-columns: 1fr;
    }
}