body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: var(--color-background-body);
    color: var(--color-text-primary);
    display: flex;
    flex-direction: column;
    height: var(--height-large);
    overflow: hidden;
}

header {
    background-color: var(--color-background-light);
    padding: var(--padding-header);
    border-bottom: 1px solid var(--color-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

header h1 {
    margin: 0;
    font-size: 1.75rem;
    font-weight: var(--font-weight-bold);
}

header p {
    margin: var(--margin-header-p);
    color: var(--color-text-secondary);
}

#text-intro {
    text-align: left;
}

#controls {
    display: flex;
    gap: var(--gap-m);
    align-items: center;
}

.button {
    background-color: var(--color-primary);
    color: var(--button-color, white);
    border: none;
    padding: var(--padding-button);
    border-radius: var(--border-radius-main);
    text-decoration: none;
    cursor: pointer;
    font-size: 1rem;
    box-sizing: border-box; /* Ensures consistent sizing */
    vertical-align: middle; /* Aligns buttons and links */
    font-weight: var(--font-weight-medium);
    transition: background-color 0.2s ease-in-out;
    height: var(--height-small);
}

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

#reset-btn, #help-btn {
    background-color: var(--color-secondary);
}

#reset-btn:hover, #help-btn:hover {
    background-color: var(--color-secondary-hover);
}

footer {
    text-align: center;
    color: var(--color-text-secondary);
    padding: var(--padding-s);
}

main {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    padding: var(--padding-m);
    gap: var(--gap-m);
    overflow: hidden;
}

#lineup-container {
    flex-grow: 1;
    position: relative;
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-main);
    background-color: var(--color-background-light);
    display: flex;
    flex-direction: column;
}

#lineup-root {
    flex-grow: 1;
    position: relative;
    overflow: auto; /* Important for LineUpJS scrolling */
}

.initial-message {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    height: 100%;
    text-align: center;
    color: var(--color-text-secondary);
    padding: var(--padding-l);
}

/* Loading Indicator */
#loading-indicator {
    border: 5px solid var(--color-light-gray);
    border-top: 5px solid var(--loading-indicator-border-top, var(--color-primary));
    border-radius: 50%;
    width: 50px;
    height: 50px;
    animation: spin 1s linear infinite;
    position: absolute;
    top: 50%;
    left: 50%;
    margin-top: -25px;
    margin-left: -25px;
    z-index: 10;
}

.hidden {
    display: none !important;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.button:disabled {
    background-color: var(--color-disabled);
    cursor: not-allowed;
}

/* Options Panel */
#options-panel {
    display: flex;
    justify-content: center;
    gap: var(--gap-l);
    padding: var(--padding-button-compact) var(--padding-m);
    background-color: var(--color-background-medium);
    border-radius: var(--border-radius-main);
    border: 1px solid var(--color-border);
    transition: all 0.3s ease-in-out;
}

.option-item {
    display: flex;
    align-items: center;
    gap: var(--gap-s);
}

.option-item label {
    font-weight: var(--font-weight-medium);
    color: var(--color-text-dark);
}

.option-item select,
.option-item input {
    padding: var(--padding-xs);
    border-radius: var(--border-radius-input);
    border: 1px solid var(--color-border-input);
}

/* Icon Button styles */
.icon-button {
    display: flex;
    align-items: center;
    gap: var(--gap-s);
}

.icon-button i {
    font-size: 1.1em;
}

/* For view control buttons */
#view-controls {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 1rem;
  color: var(--color-secondary);
}

#view-controls .button {
  background-color: var(--background-color);
  color: var(--text-color);
  border: 1px solid var(--border-color);
  transition: background-color 0.2s ease-in-out, color 0.2s ease-in-out;
}

#view-controls .button.active {
  background-color: var(--accent-color);
  color: #fff;
  border-color: var(--accent-color);
  color: var(--color-primary);
}

#view-controls .button:not(.active):hover {
    background-color: var(--hover-color);
}

/* Responsive: On smaller screens, hide button text */
@media (max-width: 900px) {
    .icon-button span {
        display: none;
    }
    .icon-button {
        padding: var(--padding-button-compact);
    }
}