:root {
    --easy-color: darkgreen;
    --medium-color: darkgoldenrod;
    --hard-color: darkred;
    --expert-color: darkslateblue;

    --easy-pastel: #B8E6C5;
    --medium-pastel: #FFF2CC;
    --hard-pastel: #FFD9D9;
    --expert-pastel: #D9D9FF;

    --light-text-color: #ccc;
    --completed-puzzle-color: #bdecb6;
    --footer-color: #212529;
    --darkmode-background-color: #2b2b2b;
    --grid-color: white;
    --grid-border-color: #999;
}

body.darkmode {
    background-color: var(--darkmode-background-color);
    color: white;
}

.darkmode {
    --easy-color: #B8E6C5;
    --medium-color: #FFF2CC;
    --hard-color: #FFD9D9;
    --expert-color: #D9D9FF;

    --grid-color: #444;
    --grid-border-color: #666;
}

.main_nav > ul > li > a:hover {
    text-decoration: none;
}

p {
    color: #000;
    font-weight: 400;
}

.darkmode p {
    color: #fff;
}

.logo > a:hover {
    color: #E5FCF5;
    text-decoration: none;
}

.backbar {
    width: 100%;
    height: 80px;
    background-color: #111215;
}

.blockEscape-container {
    border-radius: 5px;
    border: 1px solid gray;
    width: fit-content;
    padding: 3px;
    margin: 40px auto;
    margin-top: 70px;
    width: 99%;
    max-width: 400px;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 20px;
}

.outer-container.darkmode {
    background-color: var(--darkmode-background-color);
}

.blockEscape-container.darkmode {
    background-color: var(--darkmode-background-color);
    color: #ffffff;
    border: 2px solid slategray;
}

.blockEscape-header {
    width: 100%;
    max-width: 600px;
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: 20px;
}

.refresh-info-container {
    width: 100%;
    display: flex;
    justify-content: space-between;
    margin-bottom: 10px;
}

.left-buttons {
    display: flex;
    gap: 10px;
}

.right-buttons {
    display: flex;
    gap: 10px;
}

#info-container,
#refresh-container,
#undo-container,
#list-container,
#settings-container {
    color: rgba(0, 0, 0, 0.65);
    padding: 3px 6px;
    border-radius: 3px;
}

.darkmode #info-container,
.darkmode #refresh-container,
.darkmode #undo-container,
.darkmode #list-container,
.darkmode #settings-container {
    color: rgba(255, 255, 255, 0.65);
    background: transparent;
}

#refresh-container {
    /* No margin needed anymore */
}

#list-container {
    /* No margin needed anymore */
}

.darkmode .icon-button {
    color: #ffffff;
    background-color: var(--darkmode-background-color);
}

.blockEscape-title {
    font-size: 2em;
    font-weight: bold;
    margin: 10px 0;
}

.puzzle-number-container {
    display: flex;
    align-items: center;
    gap: 10px;
}

.puzzle-navigation {
    display: flex;
    align-items: center;
    gap: 5px;
}

#blockEscapeNumber {
    width: 60px;
    text-align: center;
    padding: 2px;
    border: 1px solid #ccc;
    border-radius: 4px;
    background-color: white;
    cursor: pointer;
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
}

#blockEscapeNumber:focus {
    outline: none;
    border-color: #2196F3;
}

.darkmode #blockEscapeNumber {
    background-color: #333;
    color: white;
    border-color: #666;
}

.game-grid {
    display: grid;
    grid-template-columns: repeat(6, 40px);
    grid-template-rows: repeat(6, 40px);
    gap: 2px;
    background-color: #ddd;
    padding: 10px;
    border-radius: 5px;
    margin: 0 auto;
}

.darkmode .game-grid {
    background-color: #333;
}

.cell {
    width: 40px;
    height: 40px;
    border: 1px solid #999;
    background-color: white;
    cursor: pointer;
    position: relative;
    z-index: 1;
    box-sizing: border-box;
}

.darkmode .cell {
    background-color: #444;
    border-color: #666;
}

.block {
    background-color: #4CAF50;
    border: 1px solid #45a049;
    cursor: move;
    position: relative;
    z-index: 2;
    box-sizing: border-box;
    width: 40px;
    height: 40px;
}

.darkmode .block {
    background-color: #4CAF50;
    border: 1px solid #45a049;
    cursor: move;
    position: relative;
    z-index: 5;
}

/* New styles for block outlines */
.block-top {
    border-top: 2px solid black;
}

.block-right {
    border-right: 2px solid black;
}

.block-bottom {
    border-bottom: 2px solid black;
}

.block-left {
    border-left: 2px solid black;
}

.red-block {
    background-color: #f44336;
    border: 1px solid #da190b;
    position: relative;
    z-index: 2;
    box-sizing: border-box;
    width: 40px;
    height: 40px;
}

.red-block.exiting {
    animation: slideAndDisappear 1s ease-out forwards;
}

@keyframes slideAndDisappear {
    0% {
        background-color: #f44336;
        border: 1px solid #da190b;
        position: relative;
        z-index: 5;
    }
    100% {
        background-color: var(--grid-color);
        border: 1px solid var(--grid-border-color);
        position: relative;
        z-index: 1;
    }
}

.exit {
    position: relative;
    z-index: 1;
}

.exit::after {
    content: '';
    position: absolute;
    right: -1px;
    top: -1px;
    width: 8px;
    height: calc(100% + 2px);
    background-color: #2196F3;
    border-right: 4px solid #1976D2;
    pointer-events: none;
}


.darkmode .exit::after {
    background-color: #2196F3;
    border-right: 4px solid #1976D2;
}

.blockEscape-board {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: 20px;
}

#moves {
    margin-top: 20px;
    font-size: 1.2em;
    font-weight: 700;
    text-align: center;
}

#optimal-moves {
    margin-top: 10px;
    font-size: 1em;
    text-align: center;
    font-weight: 500;
    color: slategray;
}

.darkmode #optimal-moves {
    color: lightgray;
}

.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.4);
}

.modal-content {
    background-color: #fefefe;
    margin: 10% auto;
    padding: 20px;
    border: 1px solid #888;
    width: 80%;
    max-width: 500px;
    max-height: 60vh;
    overflow-y: auto;
    border-radius: 5px;
    color: black;
    position: relative;
    z-index: 1001;
}

.darkmode .modal-content {
    background-color: var(--darkmode-background-color);
    color: #ffffff;
    border-color: slategray;
}

.darkmode .modal-content .close{
    background-color: #333;
    color: #ffffff;
}

.close {
    color: #aaa;
    position: absolute;
    top: 10px;
    right: 15px;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
}

.close:hover {
    color: #000;
}

.darkmode .close:hover {
    color: #fff;
}

.puzzle-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 15px;
}

.puzzle-button {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: #f0f0f0;
    border: 1px solid #ccc;
    border-radius: 4px;
    cursor: pointer;
    font-weight: bold;
    text-decoration: none;
    color: #333;
}

.puzzle-button:hover {
    background-color: #e0e0e0;
    text-decoration: none;
    color: #333;
}

.puzzle-button.completed {
    background-color: var(--completed-puzzle-color);
    border-color: #8bc34a;
}

.puzzle-button.active {
    background-color: #4CAF50;
    color: white;
    border: 2px solid #45a049;
    box-shadow: 0 0 5px rgba(76, 175, 80, 0.5);
}

.darkmode .puzzle-button {
    background-color: #333;
    border-color: #666;
    color: white;
}

.darkmode .puzzle-button:hover {
    background-color: #444;
    color: white;
}

.darkmode .puzzle-button.completed {
    background-color: #2d5a2d;
    border-color: #45a049;
}

.darkmode .puzzle-button.active {
    background-color: #4CAF50;
    color: white;
    border: 2px solid #45a049;
    box-shadow: 0 0 5px rgba(76, 175, 80, 0.5);
}

.difficulty-section {
    margin-bottom: 20px;
}

.difficulty-section h3 {
    margin-bottom: 10px;
    font-size: 1.2em;
}

/* Easy puzzles */
#easyLabel {
    color: var(--easy-color);
}

/* Medium puzzles */
#mediumLabel{
    color: var(--medium-color);
}

/* Hard puzzles */
#hardLabel{
    color: var(--hard-color);
}

/* Expert puzzles */
#expertLabel {
    color: var(--expert-color);
}

/* Win modal styles */
.win-buttons {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: 20px;
}

#nextPuzzleButton,
#restartButton {
    padding: 8px 16px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-weight: bold;
}

#nextPuzzleButton {
    background-color: #4CAF50;
    color: white;
}

#nextPuzzleButton:hover {
    background-color: #45a049;
}

#restartButton {
    background-color: #f0f0f0;
    color: #333;
}

#restartButton:hover {
    background-color: #e0e0e0;
}

#shareButton {
    background-color: #4CAF50;
    border: 1px solid gray;
    border-radius: 5px;
    width: fit-content;
    margin: 2rem auto 0;
    padding: 0 1rem;
    font-weight: 700;
    display: block;
}

#shareButton:focus {
    background-color: #9fd8b2;
}

/* Dark mode toggle switch */
.toggle-label {
    position: relative;
    display: inline-block;
    width: 60px;
    height: 34px;
}

.toggle-label input {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #ccc;
    transition: .4s;
    border-radius: 34px;
}

.toggle-slider:before {
    position: absolute;
    content: "";
    height: 26px;
    width: 26px;
    left: 4px;
    bottom: 4px;
    background-color: white;
    transition: .4s;
    border-radius: 50%;
}

input:checked + .toggle-slider {
    background-color: #2196F3;
}

input:checked + .toggle-slider:before {
    transform: translateX(26px);
}

.darkmode .block-top {
    border-top: 2px solid white;
}

.darkmode .block-right {
    border-right: 2px solid white;
}

.darkmode .block-bottom {
    border-bottom: 2px solid white;
}

.darkmode .block-left {
    border-left: 2px solid white;
}

.darkmode .red-block {
    background-color: #f44336;
    border: 1px solid #da190b;
    position: relative;
    z-index: 5;
}

/* Add these styles for the difficulty indicator */
.difficulty-indicator {
    font-size: 14px;
    font-weight: bold;
    padding: 4px 10px;
    border-radius: 12px;
    margin: 5px 0 10px 0;
    text-align: center;
    display: inline-block;
}

.difficulty-easy {
    background-color: var(--easy-color);
    color: white;
}

.difficulty-medium {
    background-color: var(--medium-color);
    color: white;
}

.difficulty-hard {
    background-color: var(--hard-color);
    color: white;
}

.difficulty-expert {
    background-color: var(--expert-color);
    color: white;
}

.darkmode .difficulty-indicator {
    border: 1px solid #555;
    color: black;
}

/* Utility classes */
.text-center {
    text-align: center;
}

/* Settings modal specific styles */
#settingsModal .modal-content {
    width: 40%;
    max-width: 250px;
}

.darkmode #nextPuzzleButton {
    background-color: #4CAF50;
    color: white;
}

.darkmode #restartButton {
    background-color: #333;
    color: white;
}

.darkmode #restartButton:hover {
    background-color: #444;
}

.darkmode #shareButton {
    background-color: #4CAF50;
    color: white;
    border-color: #45a049;
}

.darkmode #shareButton:focus {
    background-color: #45a049;
}

#winModalBody {
    text-align: center;
}

#winModalBody p {
    margin: 10px 0;
}

#winModalBody h2 {
    text-align: center;
    margin-bottom: 20px;
}