:root {
    --color-primary: #1f4e79;
    --color-primary-dark: #163a5c;
    --color-background: #f4f6f8;
    --color-surface: #ffffff;
    --color-text: #1f2933;
    --color-muted: #667085;
    --color-border: #d0d5dd;
    --color-danger: #b42318;
    --color-success: #027a48;
}

* {
    box-sizing: border-box;
}

html {
    font-family:
        -apple-system,
        BlinkMacSystemFont,
        "Segoe UI",
        Roboto,
        Arial,
        sans-serif;
}

body {
    margin: 0;
    background: var(--color-background);
    color: var(--color-text);
    line-height: 1.5;
}

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

.container {
    width: min(
        1100px,
        calc(100% - 32px)
    );

    margin: 0 auto;
}

.site-header {
    background: var(--color-primary);
    color: #ffffff;
}

.header-content {
    min-height: 64px;

    display: flex;
    align-items: center;
}

.site-brand {
    color: #ffffff;
    text-decoration: none;

    font-size: 1.25rem;
    font-weight: 700;
}

.site-main {
    min-height: calc(100vh - 128px);

    padding: 40px 0;
}

.site-footer {
    background: #ffffff;
    border-top: 1px solid var(--color-border);

    color: var(--color-muted);
    font-size: 0.875rem;

    padding: 20px 0;
}

.card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 10px;

    padding: 24px;

    box-shadow:
        0 1px 2px rgba(16, 24, 40, 0.05);
}

.page-title {
    margin-top: 0;
    margin-bottom: 24px;
}

.form-group {
    margin-bottom: 18px;
}

.form-label {
    display: block;

    margin-bottom: 6px;

    font-weight: 600;
}

.form-control {
    width: 100%;

    padding: 10px 12px;

    border: 1px solid var(--color-border);
    border-radius: 6px;

    background: #ffffff;
    color: var(--color-text);

    font: inherit;
}

.form-control:focus {
    outline: 2px solid rgba(31, 78, 121, 0.2);
    border-color: var(--color-primary);
}

.button {
    display: inline-block;

    padding: 10px 16px;

    border: 0;
    border-radius: 6px;

    background: var(--color-primary);
    color: #ffffff;

    font: inherit;
    font-weight: 600;

    text-decoration: none;

    cursor: pointer;
}

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

.alert {
    padding: 12px 16px;
    margin-bottom: 20px;

    border-radius: 6px;
}

.alert-danger {
    background: #fef3f2;
    border: 1px solid #fecdca;
    color: var(--color-danger);
}

.alert-success {
    background: #ecfdf3;
    border: 1px solid #abefc6;
    color: var(--color-success);
}

.dashboard-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;

    margin-bottom: 24px;

    padding-bottom: 16px;

    border-bottom: 1px solid var(--color-border);
}

.dashboard-nav a {
    display: inline-block;

    padding: 8px 12px;

    border-radius: 6px;

    text-decoration: none;

    color: var(--color-text);
}

.dashboard-nav a:hover {
    background: var(--color-background);
    color: var(--color-primary);
}