:root {
    --primary-color: #8F8F91; /* Monochromatic accent */
    --background-color: #F7F7F8; /* Lighter silver */
    --surface-color: rgba(236, 236, 236, 0.6); /* Translucent glass */
    --text-color: #222222; /* Darker text for contrast */
    --text-secondary-color: #6c757d; /* Bootstrap's muted text color */
    --border-color: rgba(0, 0, 0, 0.07);
    --shadow-color: rgba(0, 0, 0, 0.04);
    --off-day-bg: #F8F9FA; /* Very light grey for off days */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

body {
    background-color: var(--background-color);
    background-image: radial-gradient(circle, #FFFFFF 0%, #EAECEF 100%);
    font-family: var(--font-family);
    color: var(--text-color);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.glass-panel {
    background-color: var(--surface-color);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--border-color);
    border-radius: 0.75rem;
    box-shadow: 0 8px 32px 0 var(--shadow-color);
}

.main-header {
    padding: 1rem 1.5rem;
    margin-bottom: 2rem;
}

/* Container for the grid to enable horizontal scrolling */
.schedule-grid-container {
    overflow-x: auto;
}

.schedule-grid {
    border-collapse: collapse; /* Change to collapse for rigid borders */
    border-spacing: 0;
    width: 100%;
    table-layout: fixed;
}

.schedule-grid th,
.schedule-grid td {
    vertical-align: middle;
    text-align: center;
    border: 1px solid #dee2e6; /* A single, consistent border for all cells */
    white-space: nowrap; /* Prevent wrapping in all cells */
    height: 60px; /* Rigid, uniform height */
    padding: 0.5rem; /* Minimal padding */
}

/* Set width for data columns */
.schedule-grid td:not(:first-child) {
    min-width: 200px;
    width: 200px;
}

.schedule-grid th {
    color: var(--text-secondary-color);
    font-weight: 600; /* Make headers a bit bolder */
    background-color: var(--surface-color); /* Give headers a slight background */
}

/* STICKY COLUMN STYLES FOR ABSOLUTE GRID INTEGRITY */
.schedule-grid th:first-child,
.schedule-grid td:first-child {
    position: sticky;
    left: 0;
    z-index: 1;
    width: 180px;
    min-width: 180px; /* Fix the width */
    text-align: left;
    font-weight: 600;
    background-color: #f8f9fa; /* A very light, solid background for the sticky column */
}

.schedule-grid th:first-child {
    z-index: 3; /* Highest z-index for the top-left corner */
}

.schedule-grid thead th {
    position: sticky;
    top: 0;
    z-index: 2; /* Keep headers visible when scrolling vertically */
    background-color: #f8f9fa;
}

/* Shift text styling (now directly in cells) */
.shift-time {
    font-weight: 600;
    font-size: 0.9rem;
    display: block; /* Place time on its own line */
}

.shift-location {
    font-size: 0.8rem;
    color: var(--text-secondary-color);
    display: block; /* Place location on its own line */
}

.shift-location i {
    margin-right: 0.3rem;
}

.avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--text-color); /* Use dark text color for avatar */
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
}

/* Adjust bootstrap button to match the theme */
.btn-primary {
    background-color: var(--text-color);
    border-color: var(--text-color);
    font-weight: 600;
}

.btn-primary:hover {
    background-color: #000;
    border-color: #000;
}