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

/* Variables */
:root {
    /* Z-index hierarchy */
    --z-piece: 10;
    --z-piece-hover: 20;
    --z-piece-highlight: 500;
    --z-piece-dragging: 999;
    --z-piece-locked: 1;
    --z-modal: 1000;

    /* Colors - Matching Solitaire */
    --color-primary: #20314D;
    --color-accent: #84BC35;
    --color-primary-hover: #2c4056;
    --color-accent-hover: #9acc4a;
    --color-play-area: #ecf0f1;
    --color-border: #bdc3c7;
    --color-white: #ffffff;

    /* Spacing */
    --spacing-small: 10px;
    --spacing-medium: 20px;
    --spacing-large: 40px;

    /* Border radius */
    --radius-small: 4px;
    --radius-medium: 8px;
}

/* Global */
body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    min-height: 100vh;
}

.puz-container {
    width: 1200px;
    margin: 0 auto;
}

.puz-img, .puz-canvas {
    user-drag: none;
    pointer-events: none;
}

/* Forms */
.puz-label {
    font-weight: 600;
}

.puz-select {
    padding: 8px 12px;
    border-radius: var(--radius-small);
    border: 1px solid #ddd;
    background-color: var(--color-white);
    font-size: 14px;
    cursor: pointer;
    margin: 0 !important;
}

.puz-control-group {
    display: flex;
    align-items: center;
    gap: var(--spacing-small);
}

/* Buttons - Matching Solitaire Style */
.puz-btn {
    padding: 10px 20px;
    border: none;
    border-radius: var(--radius-small);
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.3s ease;
}

.puz-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.puz-btn-primary {
    background-color: var(--color-accent);
    color: var(--color-primary);
    font-weight: 700;
}

.puz-btn-primary:hover:not(:disabled) {
    background-color: var(--color-accent-hover);
}

.puz-btn-secondary {
    background-color: var(--color-primary);
    color: var(--color-white);
}

.puz-btn-secondary:hover:not(:disabled) {
    background-color: var(--color-primary-hover);
}

/* Autoplay icon styling */
#autoplay-icon {
    display: inline-block;
    width: 1.2em;
    text-align: center;
    font-family: monospace;
    line-height: 1;
    vertical-align: baseline;
}

/* Image Selection - Hidden by default, shown only in debug mode */
.image-selection {
    display: none;
    text-align: center;
    padding: var(--spacing-medium) 0;
    margin-top: var(--spacing-medium);
}

.image-selection.show-debug {
    display: block;
}

.image-selection .puz-control-group {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-medium);
}

.image-selection .puz-label {
    color: var(--color-primary);
    font-weight: 700;
    font-size: 18px;
}

.image-selection .puz-select {
    font-size: 16px;
    padding: 10px 15px;
    border: 2px solid var(--color-accent);
    background-color: var(--color-white);
    color: var(--color-primary);
}

/* Control Bar - Green Bar like Solitaire */
.puz-control-bar {
    background-color: var(--color-accent);
    padding: 15px 20px;
    margin-top: var(--spacing-medium);
    margin-bottom: var(--spacing-medium);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    border-radius: var(--radius-medium);
}

.puz-control-bar select {
    appearance: auto;
}
/* When image selector is shown, remove top margin from control bar */
.image-selection.show-debug + .puz-control-bar {
    margin-top: 0;
}

.puz-control-bar .puz-control-group .puz-label {
    color: var(--color-primary);
    font-weight: 700;
}

.game-actions {
    display: flex;
    gap: var(--spacing-small);
    align-items: center;
    flex-wrap: wrap;
}

.game-stats {
    display: flex;
    gap: 30px;
}

.puz-stat {
    display: flex;
    align-items: center;
    gap: 5px;
}

.puz-stat-label {
    font-weight: 600;
    color: var(--color-primary);
}

.puz-stat-value {
    font-size: 1.2em;
    font-weight: bold;
    color: var(--color-primary);
    min-width: 50px;
}

#timer {
    font-family: monospace;
    min-width: 5em;
    display: inline-block;
    text-align: center;
}

#moves {
    min-width: 3em;
    text-align: center;
}

/* Play Area */
#play-area {
    background-color: var(--color-play-area);
    min-height: 600px;
    padding: var(--spacing-large);
    position: relative;
    border-radius: var(--radius-medium);
    display: flex;
    justify-content: center;
    align-items: flex-start;
    padding-top: var(--spacing-large);
    padding-bottom: 300px; /* Space for scattered pieces */
}

#puzzle-board {
    position: relative;
    display: grid;
    padding: 0;
}

/* Puzzle Pieces */
.puzzle-piece {
    position: absolute;
    cursor: grab;
    transition: transform 0.3s ease, opacity 0.3s ease;
    z-index: var(--z-piece);
    user-select: none;
    touch-action: none;
}

/* Piece states */
.puzzle-piece.animating {
    z-index: var(--z-piece-hover);
    transition-property: left, top;
    transition-timing-function: ease-in-out;
}

.puzzle-piece.animation-complete {
    transition: none;
}

.puzzle-piece:hover:not(.dragging):not(.locked) {
    z-index: var(--z-piece-hover);
    transform: scale(1.02);
}

.puzzle-piece.dragging {
    z-index: var(--z-piece-dragging) !important;
    cursor: grabbing !important;
    opacity: 0.9;
    transform: scale(1.05) !important;
    transition: none !important;
}

.puzzle-piece.locked {
    cursor: default;
    z-index: var(--z-piece-locked);
}

.puzzle-piece.locked:hover {
    transform: none;
}

/* Highlight effect */
.puzzle-piece.highlight {
    z-index: var(--z-piece-highlight) !important;
    animation: piece-pulse 0.5s ease-in-out 3;
}

.puzzle-piece.highlight canvas {
    filter: drop-shadow(0 0 8px var(--color-accent)) drop-shadow(0 0 15px var(--color-accent));
}

/* Puzzle Slots */
.puzzle-slot {
    border: 1px dashed var(--color-border);
    position: relative;
}

.puzzle-slot.highlight {
    outline: 3px solid var(--color-accent);
    outline-offset: -3px;
    animation: slot-pulse 0.5s ease-in-out 3;
}

/* Modal - Matching Solitaire Style */
.puz-modal {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: var(--z-modal);
}

.puz-modal.show {
    display: flex;
    justify-content: center;
    align-items: flex-start;
    padding-top: 320px;
}

.puz-modal-content {
    background-color: var(--color-white);
    background: var(--color-white);
    opacity: 1;
    padding: 40px;
    border-radius: var(--radius-medium);
    text-align: center;
    max-width: 400px;
    width: 90%;
    position: relative;
    margin-top: 0;
}

.puz-modal h2 {
    margin-bottom: 20px;
    color: var(--color-primary);
    font-size: 32px;
    font-weight: 600;
}
/* Reset */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* Variables */
:root {
    /* Z-index hierarchy */
    --z-piece: 10;
    --z-piece-hover: 20;
    --z-piece-highlight: 500;
    --z-piece-dragging: 999;
    --z-piece-locked: 1;
    --z-modal: 1000;

    /* Colors - Matching Solitaire */
    --color-primary: #20314D;
    --color-accent: #84BC35;
    --color-primary-hover: #2c4056;
    --color-accent-hover: #9acc4a;
    --color-play-area: #ecf0f1;
    --color-border: #bdc3c7;
    --color-white: #ffffff;

    /* Spacing */
    --spacing-small: 10px;
    --spacing-medium: 20px;
    --spacing-large: 40px;

    /* Border radius */
    --radius-small: 4px;
    --radius-medium: 8px;
}

/* Global */
body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    min-height: 100vh;
}

.puz-container {
    width: 1200px;
    margin: 0 auto;
}

.puz-img, .puz-canvas {
    user-drag: none;
    pointer-events: none;
}

/* Forms */
.puz-label {
    font-weight: 600;
}

.puz-select {
    padding: 8px 12px;
    border-radius: var(--radius-small);
    border: 1px solid #ddd;
    background-color: var(--color-white);
    font-size: 14px;
    cursor: pointer;
    margin: 0 !important;
}

.puz-control-group {
    display: flex;
    align-items: center;
    gap: var(--spacing-small);
}

/* Buttons - Matching Solitaire Style */
.puz-btn {
    padding: 10px 20px;
    border: none;
    border-radius: var(--radius-small);
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.3s ease;
}

.puz-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.puz-btn-primary {
    background-color: var(--color-accent);
    color: var(--color-primary);
    font-weight: 700;
}

.puz-btn-primary:hover:not(:disabled) {
    background-color: var(--color-accent-hover);
}

.puz-btn-secondary {
    background-color: var(--color-primary);
    color: var(--color-white);
}

.puz-btn-secondary:hover:not(:disabled) {
    background-color: var(--color-primary-hover);
}

/* Autoplay icon styling */
#autoplay-icon {
    display: inline-block;
    width: 1.2em;
    text-align: center;
    font-family: monospace;
    line-height: 1;
    vertical-align: baseline;
}

/* Image Selection - Hidden by default, shown only in debug mode */
.image-selection {
    display: none;
    text-align: center;
    padding: var(--spacing-medium) 0;
    margin-top: var(--spacing-medium);
}

.image-selection.show-debug {
    display: block;
}

.image-selection .puz-control-group {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-medium);
}

.image-selection .puz-label {
    color: var(--color-primary);
    font-weight: 700;
    font-size: 18px;
}

.image-selection .puz-select {
    font-size: 16px;
    padding: 10px 15px;
    border: 2px solid var(--color-accent);
    background-color: var(--color-white);
    color: var(--color-primary);
}

/* Control Bar - Green Bar like Solitaire */
.puz-control-bar {
    background-color: var(--color-accent);
    padding: 15px 20px;
    margin-top: var(--spacing-medium);
    margin-bottom: var(--spacing-medium);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    border-radius: var(--radius-medium);
}

.puz-control-bar select {
    appearance: auto;
    width: auto;
}
/* When image selector is shown, remove top margin from control bar */
.image-selection.show-debug + .puz-control-bar {
    margin-top: 0;
}

.puz-control-bar .puz-control-group .puz-label {
    color: var(--color-primary);
    font-weight: 700;
}

.game-actions {
    display: flex;
    gap: var(--spacing-small);
    align-items: center;
    flex-wrap: wrap;
}

.game-stats {
    display: flex;
    gap: 30px;
}

.puz-stat {
    display: flex;
    align-items: center;
    gap: 5px;
}

.puz-stat-label {
    font-weight: 600;
    color: var(--color-primary);
}

.puz-stat-value {
    font-size: 1.2em;
    font-weight: bold;
    color: var(--color-primary);
    min-width: 50px;
}

#timer {
    font-family: monospace;
    min-width: 5em;
    display: inline-block;
    text-align: center;
}

#moves {
    min-width: 3em;
    text-align: center;
}

/* Play Area */
#play-area {
    background-color: var(--color-play-area);
    min-height: 600px;
    padding: var(--spacing-large);
    position: relative;
    border-radius: var(--radius-medium);
    display: flex;
    justify-content: center;
    align-items: flex-start;
    padding-top: var(--spacing-large);
    padding-bottom: 300px; /* Space for scattered pieces */
}

#puzzle-board {
    position: relative;
    display: grid;
    padding: 0;
}

/* Puzzle Pieces */
.puzzle-piece {
    position: absolute;
    cursor: grab;
    transition: transform 0.3s ease, opacity 0.3s ease;
    z-index: var(--z-piece);
    user-select: none;
    touch-action: none;
}

/* Piece states */
.puzzle-piece.animating {
    z-index: var(--z-piece-hover);
    transition-property: left, top;
    transition-timing-function: ease-in-out;
}

.puzzle-piece.animation-complete {
    transition: none;
}

.puzzle-piece:hover:not(.dragging):not(.locked) {
    z-index: var(--z-piece-hover);
    transform: scale(1.02);
}

.puzzle-piece.dragging {
    z-index: var(--z-piece-dragging) !important;
    cursor: grabbing !important;
    opacity: 0.9;
    transform: scale(1.05) !important;
    transition: none !important;
}

.puzzle-piece.locked {
    cursor: default;
    z-index: var(--z-piece-locked);
}

.puzzle-piece.locked:hover {
    transform: none;
}

/* Highlight effect */
.puzzle-piece.highlight {
    z-index: var(--z-piece-highlight) !important;
    animation: piece-pulse 0.5s ease-in-out 3;
}

.puzzle-piece.highlight canvas {
    filter: drop-shadow(0 0 8px var(--color-accent)) drop-shadow(0 0 15px var(--color-accent));
}

/* Puzzle Slots */
.puzzle-slot {
    border: 1px dashed var(--color-border);
    position: relative;
}

.puzzle-slot.highlight {
    outline: 3px solid var(--color-accent);
    outline-offset: -3px;
    animation: slot-pulse 0.5s ease-in-out 3;
}

/* Modal - Matching Solitaire Style */
.puz-modal {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: var(--z-modal);
}

.puz-modal.show {
    display: flex;
    justify-content: center;
    align-items: flex-start;
    padding-top: 320px;
}

.puz-modal-content {
    background-color: var(--color-white);
    background: var(--color-white);
    opacity: 1;
    padding: 40px;
    border-radius: var(--radius-medium);
    text-align: center;
    max-width: 400px;
    width: 90%;
    position: relative;
    margin-top: 0;
}

.puz-modal h2 {
    margin-bottom: 20px;
    color: var(--color-primary);
    font-size: 32px;
    font-weight: 600;
}

.puz-modal p {
    margin-bottom: 20px;
    font-size: 20px;
    color: #333;
}

/* Modal Stats */
.puz-modal-stats {
    font-size: 18px;
    line-height: 1.8;
    margin: 30px 0;
}

/* Modal Button */
.puz-modal-btn {
    width: 200px;
    padding: 12px 24px;
    font-size: 18px;
}

/* Modal Close Button */
.puz-modal-close {
    position: absolute;
    top: 15px;
    right: 20px;
    font-size: 32px;
    font-weight: bold;
    color: #999;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: all 0.3s;
}

.puz-modal-close:hover {
    color: #333;
    background: rgba(0, 0, 0, 0.1);
}

/* Animations */
@keyframes piece-pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.1); }
    100% { transform: scale(1); }
}

@keyframes slot-pulse {
    0% { outline-width: 3px; }
    50% { outline-width: 6px; }
    100% { outline-width: 3px; }
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-5px); }
    75% { transform: translateX(5px); }
}
.puz-modal p {
    margin-bottom: 20px;
    font-size: 20px;
    color: #333;
}

/* Modal Stats */
.puz-modal-stats {
    font-size: 18px;
    line-height: 1.8;
    margin: 30px 0;
}

/* Modal Button */
.puz-modal-btn {
    width: 200px;
    padding: 12px 24px;
    font-size: 18px;
}

/* Modal Close Button */
.puz-modal-close {
    position: absolute;
    top: 15px;
    right: 20px;
    font-size: 32px;
    font-weight: bold;
    color: #999;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: all 0.3s;
}

.puz-modal-close:hover {
    color: #333;
    background: rgba(0, 0, 0, 0.1);
}

/* Animations */
@keyframes piece-pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.1); }
    100% { transform: scale(1); }
}

@keyframes slot-pulse {
    0% { outline-width: 3px; }
    50% { outline-width: 6px; }
    100% { outline-width: 3px; }
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-5px); }
    75% { transform: translateX(5px); }
}