* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: "Work Sans", sans-serif;
    background-color: #f0f0f0;
    color: #333;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    flex-direction: column;
    padding: 10px;
}

.game-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    background-color: #fff;
    padding: 35px 0;
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    width: 100%;
    max-width: 700px;
    position: relative;
    z-index: 1;
}

.content {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 100%;
    margin-bottom: 15px;
}

.logo {
    display: flex;
    width: 100%;
    margin-bottom: 15px;
    align-items: center;
    flex-direction: row;
    justify-content: center;
    gap: 8px;
}

.logo img {
    width: 35px;
    height: auto;
}

h1 {
    margin-left: 0;
    font-size: 2em;
    color: #333;
    text-align: center;
}

.game-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    width: 100%;
    max-width: 100%;
    margin: 10px 0 15px 0;
    font-size: 1.0em;
    font-weight: bold;
    gap: 8px 15px;
    border-top: solid 1px #cccccc;
    border-bottom: solid 1px #cccccc;
    padding: 10px 15px;
}

.game-info>div {
    border-right: solid 1px #cccccc;
}

.game-info .text {
    flex-grow: 1;
    text-align: center;
    min-width: 80px;
    white-space: nowrap;
}

.puzzle-area {
    position: relative;
    width: min-content;
    height: min-content;
    margin-left: auto;
    margin-right: auto;
    margin-bottom: 20px;
    border-radius: 10px;
    overflow: hidden;
    border: 2px solid #333;
}

.puzzle-grid {
    display: grid;
    gap: 0;
    position: relative;
    background-color: #fff;
    min-height: 280px;
    min-width: 280px;
    width: min-content;
    height: min-content;
    transition: filter 0.3s ease;
    z-index: 1;
    margin: -1px 0 0 -1px;
}


.puzzle-grid.paused {
    filter: blur(10px);
}

.cell {
    border: 1px solid #ccc;
    text-align: center;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    cursor: pointer;
    user-select: none;
    transition: background-color 0.1s ease;
    font-weight: bold;
    z-index: 2;
    background-color: #ffffff;
    border-right: none;
    border-bottom: none;
    border-top: 1px solid #ccc;
    border-left: 1px solid #ccc;
}

.cell.selected {
    background-color: #f5f5f5;
}

.cell.wall-below {
    border-bottom: 3px solid #333 !important;
}

.cell.wall-right {
    border-right: 3px solid #333 !important;
}

.cell.waypoint .waypoint-marker {
    width: 10px;
    height: 10px;
    background-color: #888;
    border-radius: 50%;
    position: absolute;
    opacity: 0.6;
    pointer-events: none;
    z-index: 5;
}

.cell.waypoint.selected .waypoint-marker,
.cell.waypoint.waypoint-visited .waypoint-marker {
    background-color: #333;
    opacity: 0.8;
}


.path-svg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 3;
    overflow: visible;
    transition: filter 0.3s ease;
}

.path-svg.paused {
    filter: blur(10px);
}

#gamePath {
    fill: none;
    stroke: url(#pathGradient);
    stroke-width: 35;
    stroke-linecap: round;
    stroke-linejoin: round;
}

#tempPathSegment {
    fill: none;
    stroke-linecap: round;
    visibility: hidden;
}

.click-animation-segment {
    fill: none;
    stroke-linecap: round;
    transition: stroke-dashoffset 0.1s ease-out;
}

.numbers-svg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 4;
    overflow: visible;
    transition: filter 0.3s ease;
}

.numbers-svg.paused {
    filter: blur(10px);
}

.numbers-svg .number-circle-bg {
    fill: #333;
    stroke: #fff;
    stroke-width: 1.5px;
}

.numbers-svg .number-circle-bg.selected {
    fill: #1a5e1a;
    stroke: #a0e0a0;
}

.numbers-svg .number-text {
    fill: #fff;
    font-family: "Work Sans", sans-serif;
    font-weight: bold;
    text-anchor: middle;
    dominant-baseline: middle;
    user-select: none;
}

.buttons {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 15px;
    width: 100%;
}

button {
    padding: 8px 15px;
    font-size: 0.9em;
    cursor: pointer;
    border: 2px solid #555;
    background-color: white;
    color: #333;
    transition: background-color 0.2s ease, color 0.2s ease, transform 0.1s ease;
    border-radius: 6px;
    font-weight: bold;
}

button:hover:not(:disabled) {
    background-color: #555;
    color: white;
}

button:active:not(:disabled) {
    transform: scale(0.95);
}

button:disabled {
    cursor: not-allowed;
    background-color: #e0e0e0;
    border-color: #ccc;
    color: #999;
    transform: none;
}

button:focus {
    outline: 2px solid #77aaff;
    outline-offset: 2px;
}

.info-button {
    background: none;
    border: 1px solid #eee;
    font-size: 0.85em;
    font-weight: bold;
    color: #555;
    cursor: pointer;
    padding: 6px 14px;
    border-radius: 5px;
    line-height: 1.2;
    transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
    min-width: 80px;
    text-align: center;
    white-space: nowrap;
}

.info-button:hover {
    background-color: #eee;
    border-color: #eee;
    color: #333;
}

.info-button:active {
    background-color: #ddd;
    transform: scale(0.98);
}

.next-level-button {
    display: none;
    width: 80%;
    max-width: 180px;
    padding: 12px 20px;
    font-size: 1.1em;
    font-weight: bold;
    color: #fff;
    background-color: #4CAF50;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: background-color 0.2s ease, transform 0.1s ease;
    margin: 5px auto 10px auto;
    text-align: center;
}

.next-level-button:hover:not(:disabled) {
    background-color: #45a049;
}

.next-level-button:active:not(:disabled) {
    transform: scale(0.98);
}

.generating-text {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 100%;
    height: 100%;
    font-size: 1.1em;
    color: #555;
    font-style: italic;
    text-align: center;
    padding: 15px;
    box-sizing: border-box;
    position: absolute;
    top: 0;
    left: 0;
    background-color: rgba(255, 255, 255, 0.85);
    z-index: 10;
}

.pause-overlay {
    display: flex;
    position: absolute;
    inset: 0;
    background-color: rgb(255 255 255 / 60%);
    text-align: center;
    box-sizing: border-box;
    z-index: 15;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
}

.pause-overlay.show {
    display: flex;
    opacity: 1;
    pointer-events: auto;
}

.pause-overlay>span {
    color: #fff;
    font-size: 1em;
    background-color: rgb(0 0 0 / 66%);
    padding: 16px 24px;
    border-radius: 8px;
}

.message-box {
    display: flex;
    align-items: center;
    background-color: #fff;
    color: #333;
    font-size: .85em;
    border: 1px solid #ccc;
    border-left: 4px solid #555;
    border-radius: 4px;
    padding: 8px 12px;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.1);
    opacity: 0;
    transform: translateX(10px);
    transition: opacity 0.4s ease, transform 0.4s ease, margin-bottom 0.3s ease;
    position: relative;
    z-index: 1000;
    word-wrap: break-word;
    margin-bottom: 8px;
    max-width: 280px;
}

.message-box.show {
    opacity: 1;
    transform: translateX(0);
}

.message-box.hide {
    opacity: 0;
    transform: translateX(10px);
    margin-bottom: -40px;
    pointer-events: none;
}

.message-box span {
    flex-grow: 1;
    margin-right: 8px;
}

.message-box .close-button {
    background: none;
    border: none;
    font-size: 18px;
    font-weight: bold;
    cursor: pointer;
    color: #aaa;
    padding: 0 4px;
    line-height: 1;
}

.message-box .close-button:hover {
    color: #fff;
}

#messageContainer {
    position: fixed;
    top: 10px;
    right: 10px;
    z-index: 1000;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    width: auto;
    max-width: 300px;
}

.modal-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(255, 255, 255, 0.85);
    justify-content: center;
    align-items: center;
    z-index: 1000;
    opacity: 0;
    transition: opacity 0.3s ease;
    padding: 10px;
}

.modal-overlay.show {
    display: flex;
    opacity: 1;
}

.modal {
    background-color: #fff;
    padding: 20px 25px;
    border-radius: 8px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.2);
    text-align: center;
    max-width: 400px;
    width: 95%;
    z-index: 1001;
    transform: scale(0.9);
    transition: transform 0.3s ease;
}

.modal-overlay.show .modal {
    transform: scale(1);
}

.modal h2 {
    margin-top: 0;
    margin-bottom: 15px;
    font-size: 1.3em;
    color: #333;
}

.modal-message {
    margin-bottom: 20px;
    font-size: 1em;
    line-height: 1.5;
    color: #555;
}

.modal-buttons {
    display: flex;
    justify-content: center;
    gap: 15px;
}

.modal-button {
    padding: 8px 15px;
    min-width: 70px;
    font-size: 0.9em;
}

.modal-button-confirm {
    border-color: #d9534f;
    color: #d9534f;
}

.modal-button-confirm:hover:not(:disabled) {
    background-color: #d9534f;
    color: white;
}

.modal-button-cancel {
    border-color: #555;
    color: #555;
}

.modal-button-cancel:hover:not(:disabled) {
    background-color: #555;
    color: white;
}

@media (max-width: 480px) {
    body {
        padding: 5px;
    }

    .game-container {
        padding: 10px;
    }

    h1 {
        font-size: 1.3em;
    }

    .game-info {
        padding: 5px 4px;
        gap: 4px 10px;
        font-size: 0.9em;
    }

    .info-button {
        font-size: 0.8em;
        padding: 3px 6px;
        min-width: 70px;
    }

    .buttons {
        gap: 8px;
    }

    button {
        padding: 6px 12px;
        font-size: 0.85em;
    }

    .next-level-button {
        padding: 10px 15px;
        font-size: 1em;
    }

    #gamePath {
        stroke-width: 25;
    }

    #tempPathSegment {}

    .click-animation-segment {}

    .modal h2 {
        font-size: 1.2em;
    }

    .modal-message {
        font-size: 0.95em;
    }

    .modal-button {
        padding: 6px 12px;
        min-width: 60px;
        font-size: 0.85em;
    }

    #messageContainer {
        top: 5px;
        right: 5px;
        max-width: 240px;
    }

    .message-box {
        padding: 6px 10px;
        font-size: 0.8em;
    }

    .pause-overlay {
        font-size: 1.1em;
    }

    .cell.wall-below {
        border-bottom-width: 2px;
    }

    .cell.wall-right {
        border-right-width: 2px;
    }

    .numbers-svg .number-circle-bg {
        stroke-width: 1px;
    }

    .cell.waypoint .waypoint-marker {
        width: 8px;
        height: 8px;
    }
}

.how-to-play-container {
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 2px 12px rgba(0,0,0,0.06);
    margin: 40px auto 0 auto;
    padding: 28px 24px 24px 24px;
    max-width: 700px;
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
}
.how-to-play-title {
    font-size: 1.6em;
    font-weight: bold;
    text-align: center;
    margin-bottom: 22px;
    color: #111;
}
.how-to-play-content {
    display: flex;
    flex-direction: row;
    gap: 60px;
    justify-content: center;
    align-items: center;
    width: 100%;
}
.how-to-play-step {
    display: flex;
    align-items: center;
    gap: 16px;
}
.how-to-play-dots {
    display: flex;
    gap: 4px;
}
.how-to-play-dot {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    color: #fff;
    font-weight: bold;
    font-size: 1.1em;
    box-shadow: 0 1px 4px rgba(0,0,0,0.07);
}
.how-to-play-square {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border: 3px solid #ff9800;
    border-radius: 7px;
    background: #fff;
    margin-right: 2px;
}
.how-to-play-square-inner {
    width: 22px;
    height: 22px;
    background: #ff9800;
    border-radius: 4px;
    display: block;
}
.how-to-play-text {
    font-size: 1.08em;
    color: #222;
    margin-left: 4px;
}
@media (max-width: 700px) {
    .how-to-play-container {
        max-width: 100vw;
        width: 100%;
        padding: 18px 4vw 14px 4vw;
        box-sizing: border-box;
    }
}
@media (max-width: 600px) {
    .how-to-play-content {
        flex-direction: column;
        gap: 28px;
        align-items: center;
        width: 100%;
    }
    .how-to-play-step {
        flex-direction: column;
        align-items: center;
        gap: 8px;
        width: 100%;
    }
    .how-to-play-text {
        margin-left: 0;
        text-align: center;
        margin-top: 2px;
    }
    .how-to-play-container {
        padding: 18px 6px 14px 6px;
    }
    .how-to-play-title {
        font-size: 1.2em;
    }
}