body {
    font-family: sans-serif;
    display: flex;
    flex-direction: column;
    align-items: center;
    margin: 0;
    background: linear-gradient(135deg, #f0f8f0 0%, #e8f5e8 50%, #f8fff8 100%);
    min-height: 100vh;
    padding: 10px;
    box-sizing: border-box;
}

.container {
    width: 100%;
    max-width: 500px;
    margin: 0 auto;
    padding: 0 10px;
    box-sizing: border-box;
}

h1 {
    font-size: 2em;
    color: #333;
    margin-bottom: 20px;
    text-align: center;
}

#rules-hint {
    margin-bottom: 20px;
    font-size: 1em;
    color: #666;
    text-align: center;
}

#rules-link {
    color: #6aaa64;
    text-decoration: underline;
    cursor: pointer;
    font-weight: bold;
}

#rules-link:hover {
    color: #5d9a54;
}

#rules-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    z-index: 2000;
    display: flex;
    justify-content: center;
    align-items: center;
}

#rules-content {
    background: white;
    border-radius: 15px;
    padding: 30px;
    max-width: 600px;
    max-height: 80vh;
    overflow-y: auto;
    position: relative;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

#rules-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    border-bottom: 2px solid #f0f0f0;
    padding-bottom: 15px;
}

#rules-header h2 {
    margin: 0;
    color: #333;
    font-size: 1.8em;
}

#rules-close {
    font-size: 2em;
    cursor: pointer;
    color: #999;
    font-weight: bold;
}

#rules-close:hover {
    color: #333;
}

#rules-text {
    line-height: 1.6;
    color: #333;
}

#rules-text p {
    margin-bottom: 15px;
}

#rules-text ul {
    margin-left: 20px;
    margin-bottom: 20px;
}

#rules-text li {
    margin-bottom: 8px;
}

.rules-examples {
    margin: 20px 0;
}

.example-row {
    display: flex;
    align-items: center;
    margin-bottom: 15px;
    gap: 10px;
}

.example-cell {
    width: 40px;
    height: 40px;
    min-width: 40px;
    max-width: 40px;
    min-height: 40px;
    max-height: 40px;
    border: 2px solid #ccc;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.4em;
    font-weight: bold;
    font-family: monospace;
    background-color: #fff;
    text-transform: uppercase;
    transition: background-color 0.3s ease, border-color 0.3s ease;
    box-sizing: border-box;
    flex-shrink: 0;
    flex-grow: 0;
}

.example-cell.correct {
    background-color: #6aaa64;
    color: white;
    border-color: #6aaa64;
}

.example-cell.present {
    background-color: #c9b458;
    color: white;
    border-color: #c9b458;
}

.example-cell.absent {
    background-color: #787c7e;
    color: white;
    border-color: #787c7e;
}

.example-text {
    font-size: 0.9em;
    color: #666;
}

#game-container {
    text-align: center;
}

#game-grid {
    display: grid;
    grid-template-rows: repeat(6, auto);
    gap: 10px;
    margin-bottom: 0;
    justify-content: center;
    width: fit-content;
    margin-left: auto;
    margin-right: auto;
}

.grid-row {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 10px;
}

.grid-cell {
    width: 60px;
    height: 60px;
    border: 2px solid #ccc;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 2em;
    font-weight: bold;
    text-transform: uppercase;
    background-color: #fff;
    transition: background-color 0.3s ease, border-color 0.3s ease;
}

.grid-cell.correct {
    background-color: #6aaa64;
    color: white;
    border-color: #6aaa64;
}

.grid-cell.present {
    background-color: #c9b458;
    color: white;
    border-color: #c9b458;
}

.grid-cell.absent {
    background-color: #787c7e;
    color: white;
    border-color: #787c7e;
}

.grid-cell.active {
    border-color: #6aaa64;
    box-shadow: 0 0 8px rgba(106, 170, 100, 0.4);
    background-color: #f8fff8;
}

#keyboard {
    margin-top: 30px;
}

.keyboard-row {
    display: flex;
    justify-content: center;
    margin-bottom: 8px;
    width: 100%;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.keyboard-key {
    padding: 10px;
    margin: 0 3px;
    border: none;
    border-radius: 4px;
    font-size: 1em;
    font-weight: bold;
    cursor: pointer;
    background-color: #d3d6da;
    color: #1a1a1b;
    text-transform: uppercase;
    transition: background-color 0.3s ease;
    height: 40px;
    display: flex;
    justify-content: center;
    align-items: center;
    flex: 1;
    min-width: 0;
}

.keyboard-key:hover {
    background-color: #c1c4c7;
}

.keyboard-key.key-enter:hover,
.keyboard-key.key-backspace:hover {
    background-color: #959595;
}

.keyboard-key.key-enter,
.keyboard-key.key-backspace {
    font-size: 0.8em;
    padding: 10px 15px;
    flex: 1.2;
    background-color: #a8a8a8;
    color: #fff;
    border: 1px solid #999;
}

.keyboard-key.key-backspace {
    font-size: 1em !important;
}

.keyboard-key.correct {
    background-color: #6aaa64;
    color: white;
}

.keyboard-key.present {
    background-color: #c9b458;
    color: white;
}

.keyboard-key.absent {
    background-color: #787c7e;
    color: white;
}


#message-area {
    margin-top: 20px;
    font-size: 1.2em;
    color: #333;
    min-height: 1.5em;
    text-align: center;
}

#message-area.error-message {
    color: #e74c3c;
    font-weight: bold;
}

#message-area.win-message {
    color: #6aaa64;
    font-weight: bold;
}

#new-game-button {
    margin: 40px auto 0 auto;
    padding: 10px 20px;
    font-size: 1.2em;
    background-color: #6aaa64;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.3s ease;
    display: block;
}

#new-game-button:hover {
    background-color: #5d9a54;
}



.confetti-piece:nth-child(2n) {
    background-color: #4ecdc4;
}

.confetti-piece:nth-child(3n) {
    background-color: #45b7d1;
}

.confetti-piece:nth-child(4n) {
    background-color: #f9ca24;
}

.confetti-piece:nth-child(5n) {
    background-color: #6c5ce7;
}

.confetti-piece:nth-child(6n) {
    background-color: #a29bfe;
}

.confetti-piece:nth-child(7n) {
    background-color: #fd79a8;
}

.confetti-piece:nth-child(8n) {
    background-color: #00b894;
}

#canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1000;
  pointer-events: none;
  background-color: transparent;
  display: block;
}

/* Responsive Design für Mobile Geräte */

/* Tablet Landscape und kleinere Desktops */
@media (max-width: 1024px) {
    .container {
        max-width: 450px;
    }
    
    .grid-cell {
        width: 55px;
        height: 55px;
        font-size: 1.8em;
    }
    
    .keyboard-key {
        height: 35px;
        font-size: 0.9em;
        padding: 8px;
        flex: 1;
        min-width: 0;
    }
    
    .keyboard-key.key-enter,
    .keyboard-key.key-backspace {
        font-size: 0.7em;
        padding: 8px 12px;
        flex: 1.2;
        background-color: #a8a8a8;
        color: #fff;
        border: 1px solid #999;
    }

    .keyboard-key.key-backspace {
        font-size: 1em !important;
    }
}

/* Tablet Portrait */
@media (max-width: 768px) {
    body {
        padding: 5px;
    }
    
    .container {
        max-width: 400px;
    }
    
    h1 {
        font-size: 1.8em;
        margin-bottom: 15px;
    }
    
    .grid-cell {
        width: 50px;
        height: 50px;
        font-size: 1.6em;
    }
    
    #game-grid {
        gap: 8px;
        margin-bottom: 20px;
    }
    
    .grid-row {
        gap: 8px;
    }
    
    .keyboard-key {
        height: 32px;
        font-size: 0.8em;
        padding: 6px;
        margin: 0 2px;
        flex: 1;
        min-width: 0;
    }
    
    .keyboard-key.key-enter,
    .keyboard-key.key-backspace {
        font-size: 0.6em;
        padding: 6px 10px;
        flex: 1.2;
        background-color: #a8a8a8;
        color: #fff;
        border: 1px solid #999;
    }

    .keyboard-key.key-backspace {
        font-size: 1em !important;
    }
    
    .keyboard-row {
        margin-bottom: 6px;
    }
    
    #keyboard {
        margin-top: 20px;
    }
}

/* Mobile Landscape */
@media (max-width: 576px) {
    .container {
        max-width: 400px;
    }
    
    h1 {
        font-size: 1.6em;
        margin-bottom: 10px;
    }
    
    .grid-cell {
        width: 55px;
        height: 55px;
        font-size: 1.6em;
    }
    
    #game-grid {
        gap: 8px;
        margin-bottom: 15px;
    }
    
    .grid-row {
        gap: 8px;
    }
    
    .keyboard-key {
        height: 28px;
        font-size: 0.7em;
        padding: 4px;
        margin: 0 1px;
        flex: 1;
        min-width: 0;
    }
    
    .keyboard-key.key-enter,
    .keyboard-key.key-backspace {
        font-size: 0.5em;
        padding: 4px 8px;
        flex: 1.2;
        background-color: #a8a8a8;
        color: #fff;
        border: 1px solid #999;
    }

    .keyboard-key.key-backspace {
        font-size: 1em !important;
    }
    
    .keyboard-row {
        margin-bottom: 4px;
    }
    
    #keyboard {
        margin-top: 15px;
    }
    
    #message-area {
        font-size: 1em;
        margin-top: 15px;
    }
}

/* Mobile Portrait - sehr kleine Bildschirme */
@media (max-width: 480px) {
    body {
        padding: 5px;
    }
    
    .container {
        max-width: 380px;
        padding: 0 5px;
    }
    
    h1 {
        font-size: 1.4em;
        margin-bottom: 8px;
    }
    
    #rules-hint {
        font-size: 0.9em;
        margin-bottom: 15px;
    }
    
    .grid-cell {
        width: 50px;
        height: 50px;
        font-size: 1.4em;
        border-width: 1px;
    }
    
    #game-grid {
        gap: 7px;
        margin-bottom: 12px;
    }
    
    .grid-row {
        gap: 7px;
    }
    
    /* Tastatur nimmt volle Bildschirmbreite ein */
    #keyboard {
        margin-top: 12px;
        width: 100vw;
        margin-left: calc(-50vw + 50%);
        padding: 10px 8px;
        background-color: #f8f9fa;
        border-top: 1px solid #e0e0e0;
        box-sizing: border-box;
    }
    
    .keyboard-row {
        margin-bottom: 6px;
        display: flex;
        justify-content: center;
        width: 100%;
    }
    
    .keyboard-key {
        height: 44px;
        font-size: 0.9em;
        padding: 0;
        margin: 0 2px;
        border-radius: 6px;
        flex: 1;
        max-width: 32px;
        display: flex;
        justify-content: center;
        align-items: center;
        font-weight: 600;
        box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    }
    
    .keyboard-key.key-enter,
    .keyboard-key.key-backspace {
        font-size: 0.7em;
        padding: 0 8px;
        flex: 1.8;
        max-width: 65px;
        font-weight: 600;
        background-color: #a8a8a8;
        color: #fff;
        border: 1px solid #999;
    }

    .keyboard-key.key-backspace {
        font-size: 1em !important;
    }
    
    #message-area {
        font-size: 0.9em;
        margin-top: 12px;
    }
    
    #new-game-button {
        font-size: 1em;
        padding: 8px 16px;
        margin-top: 20px;
    }
}

/* Sehr kleine Mobile Geräte */
@media (max-width: 360px) {
    .container {
        max-width: 340px;
    }
    
    .grid-cell {
        width: 45px;
        height: 45px;
        font-size: 1.3em;
    }
    
    /* Tastatur bleibt volle Breite, aber etwas kleiner */
    .keyboard-key {
        height: 40px;
        font-size: 0.8em;
        max-width: 28px;
    }
    
    .keyboard-key.key-enter,
    .keyboard-key.key-backspace {
        font-size: 0.65em;
        flex: 2.0;
        max-width: 60px;
        background-color: #a8a8a8;
        color: #fff;
        border: 1px solid #999;
    }

    .keyboard-key.key-backspace {
        font-size: 0.9em !important;
    }
    
}

/* Rules Overlay Responsive */
@media (max-width: 768px) {
    #rules-content {
        max-width: 90%;
        padding: 20px;
        margin: 20px;
    }
    
    #rules-header h2 {
        font-size: 1.4em;
    }
    
    .example-cell {
        width: 30px;
        height: 30px;
        font-size: 1.2em;
    }
}

@media (max-width: 480px) {
    #rules-content {
        max-width: 95%;
        padding: 15px;
        margin: 10px;
    }
    
    #rules-header h2 {
        font-size: 1.2em;
    }
    
    .example-cell {
        width: 25px;
        height: 25px;
        font-size: 1em;
    }
    
    .example-text {
        font-size: 0.8em;
    }
}