:root {
    --color-bg: #ffffff;
    --color-text: #1a1a1a;
    --color-border: #d0d0d0;
    --color-primary: #7a1fa2;
    --color-primary-contrast: #ffffff;
    --color-muted: #666666;
    --color-success: #1e8e3e;
    --color-warning: #b8860b;
    --color-danger: #c62828;
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 1rem;
    --space-4: 1.5rem;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
    color: var(--color-text);
    background: var(--color-bg);
    line-height: 1.4;
}

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

.site-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-2) var(--space-4);
    background: #fff;
    border-bottom: 1px solid var(--color-border);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
    flex-wrap: wrap;
    gap: var(--space-3);
    position: sticky;
    top: 0;
    z-index: 10;
}

.site-header__title {
    font-weight: 700;
    color: var(--color-primary);
    white-space: nowrap;
}

.site-header__nav {
    display: flex;
    gap: var(--space-1);
    align-items: center;
    flex-wrap: wrap;
}

.site-header__nav .nav-link {
    display: inline-block;
    padding: 0.4rem 0.75rem;
    border-radius: 999px;
    color: var(--color-muted);
    font-weight: 500;
    font-size: 0.9rem;
    text-decoration: none;
    transition: background 0.15s, color 0.15s;
    white-space: nowrap;
}
.site-header__nav .nav-link:hover { background: #f3e8f7; color: var(--color-primary); }
.site-header__nav .nav-link--active {
    background: var(--color-primary);
    color: var(--color-primary-contrast);
}
.site-header__nav .nav-link--active:hover {
    background: var(--color-primary);
    color: var(--color-primary-contrast);
}

.site-header__nav .nav-sep {
    width: 1px;
    height: 1.3rem;
    background: var(--color-border);
    margin: 0 var(--space-1);
}

.site-header__nav .nav-logout {
    padding: 0.4rem 0.75rem;
    border-radius: 999px;
    color: var(--color-muted);
    font-weight: 500;
    font-size: 0.9rem;
    background: none;
    border: none;
    cursor: pointer;
    font-family: inherit;
    transition: background 0.15s, color 0.15s;
}
.site-header__nav .nav-logout:hover { background: #fce8e6; color: var(--color-danger); }

.site-main {
    padding: var(--space-3);
    max-width: 72rem;
    margin: 0 auto;
}
.site-main--full {
    max-width: none;
    padding-left: var(--space-2);
    padding-right: var(--space-2);
}

.checkin-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-1) var(--space-2);
    border-bottom: 1px solid var(--color-border);
    font-size: 0.85rem;
    font-weight: 600;
}
.checkin-header__nav {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}
.checkin-header__nav a { color: var(--color-text); }

.site-main--checkin {
    padding: var(--space-2);
    max-width: 26rem;
}

.checkin-tabs {
    display: flex;
    gap: var(--space-1);
    padding: 0 var(--space-2);
    border-bottom: 1px solid var(--color-border);
    overflow-x: auto;
}
.checkin-tabs__link {
    padding: var(--space-2) var(--space-2);
    font-size: 0.85rem;
    color: var(--color-muted);
    white-space: nowrap;
    border-bottom: 2px solid transparent;
}
.checkin-tabs__link:hover { color: var(--color-primary); }
.checkin-tabs__link--active {
    color: var(--color-primary);
    font-weight: 600;
    border-bottom-color: var(--color-primary);
}

.inline-form { display: inline; }

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

.messages { list-style: none; padding: 0; margin: 0 0 var(--space-3); }
.message { padding: var(--space-2); border-radius: 4px; margin-bottom: var(--space-1); }
.message--success { background: #e6f4ea; color: var(--color-success); }
.message--error { background: #fce8e6; color: var(--color-danger); }
.message--warning { background: #fef7e0; color: var(--color-warning); }

form p { margin: 0 0 var(--space-3); }
label { display: block; font-weight: 600; margin-bottom: var(--space-1); }
input, select, textarea {
    width: 100%;
    padding: var(--space-2);
    border: 1px solid var(--color-border);
    border-radius: 4px;
    font: inherit;
}

input[type="checkbox"], input[type="radio"] {
    width: auto;
    display: inline-block;
    margin: 0 var(--space-1) 0 0;
    vertical-align: middle;
}

.checkbox-field label {
    font-weight: normal;
    display: flex;
    align-items: flex-start;
    gap: var(--space-1);
}

fieldset {
    border: 1px solid var(--color-border);
    border-radius: 4px;
    padding: var(--space-3);
    margin: 0 0 var(--space-3);
}

legend { font-weight: 600; padding: 0 var(--space-1); }

fieldset ul { list-style: none; padding: 0; margin: 0; }
fieldset li label {
    font-weight: normal;
    display: flex;
    align-items: flex-start;
    gap: var(--space-1);
    margin-bottom: var(--space-1);
}

button, .button {
    display: inline-block;
    padding: var(--space-2) var(--space-3);
    background: var(--color-primary);
    color: var(--color-primary-contrast);
    border: none;
    border-radius: 4px;
    font: inherit;
    cursor: pointer;
    text-decoration: none;
}

table { width: 100%; border-collapse: collapse; }
th, td { border: 1px solid var(--color-border); padding: var(--space-1) var(--space-2); text-align: left; }

.filter-bar {
    display: flex;
    gap: var(--space-3);
    align-items: flex-end;
    flex-wrap: wrap;
}
.filter-bar p { margin: 0; }
.filter-bar input { width: auto; }
.filter-bar .input-narrow { width: 6rem; }
.filter-bar .input-wide { width: 16rem; }

.badge {
    display: inline-block;
    padding: 0 var(--space-1);
    border-radius: 4px;
    font-size: 0.85em;
}
.badge--warning { background: #fef7e0; color: var(--color-warning); }
.badge--success { background: #e6f4ea; color: var(--color-success); }
.badge--danger { background: #fce8e6; color: var(--color-danger); }

.shift-row--leadership { background: #f5f0fa; font-weight: 600; }

.property-toggle-list {
    list-style: none;
    padding: 0;
    margin: 0 0 var(--space-3);
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
}
.property-toggle-list button {
    background: var(--color-bg);
    color: var(--color-primary);
    border: 1px solid var(--color-primary);
}
.property-toggle-list button.button--active {
    background: var(--color-primary);
    color: var(--color-primary-contrast);
}

.comment-list { list-style: none; padding: 0; }
.comment-list li {
    border: 1px solid var(--color-border);
    border-radius: 4px;
    padding: var(--space-2);
    margin-bottom: var(--space-2);
}


@media print {
    .site-header, .no-print { display: none !important; }
}