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

body {
    font-family: 'Arial', sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 10px;
}

.container {
    max-width: 600px;
    width: 90%;
    background: white;
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    overflow: hidden;
}

h1 {
    background: linear-gradient(45deg, #ff6b6b, #4ecdc4);
    color: white;
    text-align: center;
    padding: 30px;
    margin: 0;
    font-size: 2em;
}

#game-container .screen {
    display: none;
    padding: 40px;
    text-align: center;
}

#game-container .screen.active {
    display: block;
}

#intro-screen h2 {
    color: #333;
    margin-bottom: 20px;
    font-size: 1.8em;
}

#intro-screen p {
    color: #666;
    margin-bottom: 30px;
    font-size: 1.1em;
    line-height: 1.6;
}

button {
    background: linear-gradient(45deg, #ff6b6b, #4ecdc4);
    color: white;
    border: none;
    padding: 15px 30px;
    border-radius: 50px;
    font-size: 1.1em;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    margin: 8px;
    min-width: 120px;
}

button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

button:active {
    transform: translateY(0);
}

button:disabled {
    background: #95a5a6;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
    opacity: 0.7;
}

button:disabled:hover {
    background: #95a5a6;
    transform: none;
    box-shadow: none;
}

/* Top button row styling */
.top-buttons {
    margin: 10px 0 5px 0;
}

/* Clear and Shuffle button styling */
#question-clear, #final-clear, #question-shuffle, #final-shuffle {
    padding: 12px 20px;
    font-size: 1.4em;
    min-width: auto;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin: 8px;
}

/* Clear button styling */
#question-clear, #final-clear {
    background: linear-gradient(45deg, #e67e22, #d35400);
}

#question-clear:hover, #final-clear:hover {
    background: linear-gradient(45deg, #d68910, #ba4a00);
    transform: translateY(-3px) scale(1.1);
}

/* Shuffle button styling */
#question-shuffle, #final-shuffle {
    background: linear-gradient(45deg, #9b59b6, #e74c3c);
}

#question-shuffle:hover, #final-shuffle:hover {
    background: linear-gradient(45deg, #8e44ad, #c0392b);
    transform: translateY(-3px) rotate(180deg);
}

/* Submit button styling */
#submit-btn, #final-submit {
    background: linear-gradient(45deg, #27ae60, #2980b9);
    padding: 15px 35px;
    font-size: 1.2em;
    font-weight: bold;
    margin: 15px 8px;
    min-width: 140px;
}

#submit-btn:hover, #final-submit:hover {
    background: linear-gradient(45deg, #229954, #2471a3);
    transform: translateY(-2px) scale(1.05);
}

/* Button container for better layout */
.button-group {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    flex-wrap: wrap;
    margin: 20px 0;
}

#progress {
    background: #f8f9fa;
    padding: 10px;
    border-radius: 10px;
    margin-bottom: 20px;
    color: #666;
    font-weight: bold;
}

#question-text {
    color: #333;
    margin-bottom: 20px;
    font-size: 1.5em;
    line-height: 1.4;
}

#scrambled-answer {
    background: #ff6b6b;
    color: white;
    padding: 20px;
    border-radius: 15px;
    margin: 20px 0;
    font-size: 1.8em;
    font-weight: bold;
    letter-spacing: 3px;
    text-transform: uppercase;
    word-wrap: break-word;
    line-height: 1.2;
}

input[type="text"] {
    width: 100%;
    padding: 15px;
    border: 3px solid #e0e0e0;
    border-radius: 10px;
    font-size: 1.2em;
    margin: 20px 0;
    text-align: center;
    transition: border-color 0.3s ease;
}

input[type="text"]:focus {
    outline: none;
    border-color: #4ecdc4;
    box-shadow: 0 0 10px rgba(78, 205, 196, 0.3);
}

input[type="text"]:disabled {
    background: #f8f9fa;
    color: #6c757d;
    cursor: not-allowed;
    opacity: 0.7;
}

#feedback {
    margin: 20px 0;
    padding: 15px;
    border-radius: 10px;
    font-weight: bold;
    min-height: 20px;
}

#feedback.correct {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

#feedback.incorrect {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

#collected-letters {
    margin-top: 30px;
    padding: 20px;
    background: #f8f9fa;
    border-radius: 15px;
}

#collected-letters h3 {
    color: #333;
    margin-bottom: 15px;
}

#letters-display {
    display: flex;
    justify-content: center;
    gap: 10px;
    flex-wrap: wrap;
}

.letter {
    background: #4ecdc4;
    color: white;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2em;
    font-weight: bold;
    animation: letterPop 0.5s ease;
}

.letter.space {
    background: #ddd;
    color: #666;
    border: 2px dashed #999;
}

@keyframes letterPop {
    0% { transform: scale(0); }
    80% { transform: scale(1.2); }
    100% { transform: scale(1); }
}

#final-letters {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin: 30px 0;
    flex-wrap: wrap;
}

#final-letters .letter {
    background: #ff6b6b;
    width: 50px;
    height: 50px;
    font-size: 1.5em;
}

#word-blanks {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin: 30px 0;
    flex-wrap: wrap;
}

.word-group {
    display: flex;
    gap: 8px;
}

.blank {
    width: 40px;
    height: 40px;
    border: 3px solid #ddd;
    border-radius: 8px;
    background: #f8f9fa;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2em;
    font-weight: bold;
    color: white;
    transition: all 0.3s ease;
}

.blank.correct {
    background: #27ae60;
    border-color: #27ae60;
    color: white;
    animation: correctPop 0.5s ease;
}

.blank.incorrect {
    background: #e74c3c;
    border-color: #e74c3c;
    color: white;
}

.blank.empty {
    background: #f8f9fa;
    border-color: #ddd;
    color: transparent;
}

@keyframes correctPop {
    0% { transform: scale(1); }
    50% { transform: scale(1.1); }
    100% { transform: scale(1); }
}

/* SUCCESS SCREEN - CELEBRATION PAGE */
#success-screen {
    background: linear-gradient(135deg, #FF6B9D 0%, #C06C84 20%, #6C5B7B 40%, #355C7D 60%, #2A9D8F 80%, #F4A261 100%);
    background-size: 400% 400%;
    animation: gradientShift 8s ease infinite;
    color: white;
    border-radius: 20px;
    margin: -40px;
    position: relative;
    overflow: hidden;
    min-height: 500px;
    display: flex;
    align-items: center;
    justify-content: center;
}

@keyframes gradientShift {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

.celebration-content {
    position: relative;
    z-index: 10;
    text-align: center;
    padding: 20px;
}

.congrats-badge {
    background: rgba(255, 255, 255, 0.2);
    border: 3px solid white;
    border-radius: 50px;
    padding: 15px 30px;
    display: inline-block;
    font-size: 1.2em;
    font-weight: bold;
    margin-bottom: 30px;
    animation: pulse 2s ease-in-out infinite;
    backdrop-filter: blur(10px);
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

.birthday-message {
    background: none;
    padding: 0;
    margin: 20px 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

.birthday-message .happy {
    font-family: 'Pacifico', cursive;
    font-size: 4em;
    color: #FFD700;
    text-shadow: 4px 4px 8px rgba(0, 0, 0, 0.3),
                 0 0 20px rgba(255, 215, 0, 0.5);
    animation: bounce 2s ease-in-out infinite;
    display: block;
}

.birthday-message .birthday {
    font-family: 'Fredoka One', cursive;
    font-size: 5em;
    color: #FF1493;
    text-shadow: 4px 4px 8px rgba(0, 0, 0, 0.3),
                 0 0 30px rgba(255, 20, 147, 0.6);
    animation: bounce 2s ease-in-out 0.1s infinite;
    display: block;
    letter-spacing: 5px;
}

.birthday-message .name {
    font-family: 'Poppins', sans-serif;
    font-weight: 900;
    font-size: 3.5em;
    color: #FFFFFF;
    text-shadow: 4px 4px 8px rgba(0, 0, 0, 0.4),
                 0 0 40px rgba(255, 255, 255, 0.5);
    animation: bounce 2s ease-in-out 0.2s infinite;
    display: block;
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.cake-emoji {
    font-size: 4em;
    margin: 30px 0;
    animation: spin 3s ease-in-out infinite;
}

@keyframes spin {
    0%, 100% { transform: rotate(-5deg) scale(1); }
    50% { transform: rotate(5deg) scale(1.1); }
}

.gift-section {
    background: rgba(255, 255, 255, 0.15);
    border-radius: 20px;
    padding: 30px;
    margin-top: 40px;
    backdrop-filter: blur(10px);
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.gift-label {
    font-size: 1.3em;
    margin-bottom: 15px;
    color: #FFFACD;
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.gift-name {
    font-family: 'Fredoka One', cursive;
    font-size: 2.5em;
    color: #FFD700;
    text-shadow: 3px 3px 6px rgba(0, 0, 0, 0.4),
                 0 0 20px rgba(255, 215, 0, 0.6);
    margin: 20px 0;
    animation: glow 2s ease-in-out infinite;
}

@keyframes glow {
    0%, 100% { text-shadow: 3px 3px 6px rgba(0, 0, 0, 0.4), 0 0 20px rgba(255, 215, 0, 0.6); }
    50% { text-shadow: 3px 3px 6px rgba(0, 0, 0, 0.4), 0 0 40px rgba(255, 215, 0, 0.9); }
}

.gift-link {
    display: inline-block;
    background: linear-gradient(45deg, #FFD700, #FFA500);
    color: #333;
    padding: 15px 40px;
    border-radius: 50px;
    text-decoration: none;
    font-size: 1.3em;
    font-weight: bold;
    margin-top: 20px;
    transition: all 0.3s ease;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

.gift-link:hover {
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.4);
}

/* CONFETTI ANIMATION */
.confetti-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    pointer-events: none;
}

.confetti {
    position: absolute;
    width: 15px;
    height: 15px;
    background: #f0f;
    top: -10%;
    animation: confetti-fall 4s linear infinite;
}

.confetti:nth-child(1) { left: 10%; animation-delay: 0s; background: #FF6B9D; }
.confetti:nth-child(2) { left: 20%; animation-delay: 0.5s; background: #FFD700; }
.confetti:nth-child(3) { left: 30%; animation-delay: 1s; background: #4ECDC4; }
.confetti:nth-child(4) { left: 40%; animation-delay: 1.5s; background: #95E1D3; }
.confetti:nth-child(5) { left: 50%; animation-delay: 2s; background: #FF6B9D; }
.confetti:nth-child(6) { left: 60%; animation-delay: 2.5s; background: #C06C84; }
.confetti:nth-child(7) { left: 70%; animation-delay: 3s; background: #FFD700; }
.confetti:nth-child(8) { left: 80%; animation-delay: 3.5s; background: #4ECDC4; }
.confetti:nth-child(9) { left: 90%; animation-delay: 0.7s; background: #95E1D3; }
.confetti:nth-child(10) { left: 15%; animation-delay: 1.3s; background: #FF1493; }

@keyframes confetti-fall {
    0% {
        top: -10%;
        transform: rotate(0deg);
        opacity: 1;
    }
    100% {
        top: 110%;
        transform: rotate(720deg);
        opacity: 0.5;
    }
}

/* Tablet styles */
@media (max-width: 768px) {
    .container {
        width: 95%;
        border-radius: 15px;
    }

    h1 {
        font-size: 1.8em;
        padding: 25px 15px;
    }

    .screen {
        padding: 30px 20px;
    }

    #question-text {
        font-size: 1.3em;
    }

    #scrambled-answer {
        font-size: 1.6em;
        padding: 15px;
        letter-spacing: 2px;
    }

    button {
        padding: 12px 25px;
        font-size: 1em;
    }

    input[type="text"] {
        padding: 12px;
        font-size: 1.1em;
    }

    #final-letters .letter {
        width: 45px;
        height: 45px;
        font-size: 1.3em;
    }
}

/* Mobile styles */
@media (max-width: 480px) {
    body {
        padding: 5px;
        align-items: flex-start;
        padding-top: 20px;
    }

    .container {
        width: 100%;
        border-radius: 10px;
        min-height: calc(100vh - 40px);
        display: flex;
        flex-direction: column;
    }

    h1 {
        font-size: 1.4em;
        padding: 15px 10px;
        line-height: 1.2;
    }

    .screen {
        padding: 15px;
        flex: 1;
        display: flex;
        flex-direction: column;
        justify-content: space-between;
    }


    #intro-screen h2 {
        font-size: 1.4em;
        margin-bottom: 15px;
    }

    #intro-screen p {
        font-size: 1em;
        margin-bottom: 25px;
    }

    #question-text {
        font-size: 1.1em;
        margin-bottom: 15px;
        line-height: 1.3;
    }

    #scrambled-answer {
        font-size: 1.2em;
        padding: 12px;
        margin: 15px 0;
        letter-spacing: 1px;
        word-break: break-all;
        line-height: 1.3;
    }

    button {
        padding: 12px 20px;
        font-size: 1em;
        border-radius: 25px;
        margin: 8px 5px;
        min-width: 100px;
    }

    #question-clear, #final-clear, #question-shuffle, #final-shuffle {
        width: 50px;
        height: 50px;
        font-size: 1.2em;
        margin: 6px;
    }

    .top-buttons {
        margin: 8px 0 5px 0;
    }

    #submit-btn, #final-submit {
        padding: 12px 25px;
        font-size: 1.1em;
        min-width: 120px;
        margin: 12px 5px;
    }

    input[type="text"] {
        padding: 12px;
        font-size: 1.1em;
        margin: 15px 0;
        border-width: 2px;
    }

    #progress {
        padding: 8px;
        margin-bottom: 15px;
        font-size: 0.9em;
    }

    #feedback {
        margin: 15px 0;
        padding: 10px;
        font-size: 0.9em;
    }

    #collected-letters {
        margin-top: 20px;
        padding: 15px;
    }

    #collected-letters h3 {
        font-size: 1em;
        margin-bottom: 10px;
    }

    #letters-display {
        gap: 8px;
    }

    .letter {
        width: 35px;
        height: 35px;
        font-size: 1em;
    }

    #final-letters {
        gap: 10px;
        margin: 20px 0;
    }

    #final-letters .letter {
        width: 40px;
        height: 40px;
        font-size: 1.2em;
    }

    #word-blanks {
        gap: 20px;
        margin: 20px 0;
    }

    .word-group {
        gap: 6px;
    }

    .blank {
        width: 35px;
        height: 35px;
        border-width: 2px;
    }

    #success-screen {
        margin: -15px;
        border-radius: 10px;
        padding: 15px;
        min-height: 400px;
    }

    .congrats-badge {
        font-size: 1em;
        padding: 12px 20px;
        margin-bottom: 20px;
    }

    .birthday-message .happy {
        font-size: 2.5em;
    }

    .birthday-message .birthday {
        font-size: 3em;
        letter-spacing: 2px;
    }

    .birthday-message .name {
        font-size: 2em;
    }

    .cake-emoji {
        font-size: 3em;
        margin: 20px 0;
    }

    .gift-section {
        padding: 20px;
        margin-top: 25px;
    }

    .gift-label {
        font-size: 1em;
    }

    .gift-name {
        font-size: 1.8em;
        margin: 15px 0;
    }

    .gift-link {
        font-size: 1.1em;
        padding: 12px 30px;
    }

    #final-feedback {
        margin: 10px 0;
        padding: 10px;
        font-size: 0.9em;
    }
}

/* Extra small mobile styles */
@media (max-width: 320px) {
    h1 {
        font-size: 1.2em;
        padding: 12px 8px;
    }

    .screen {
        padding: 12px;
    }

    #question-text {
        font-size: 1em;
    }

    #scrambled-answer {
        font-size: 1.1em;
        padding: 10px;
    }

    button {
        padding: 10px 15px;
        font-size: 0.9em;
    }

    input[type="text"] {
        padding: 10px;
        font-size: 1em;
    }

    .letter {
        width: 30px;
        height: 30px;
        font-size: 0.9em;
    }

    #final-letters .letter {
        width: 35px;
        height: 35px;
        font-size: 1.1em;
    }

    .congrats-badge {
        font-size: 0.9em;
        padding: 10px 15px;
    }

    .birthday-message .happy {
        font-size: 2em;
    }

    .birthday-message .birthday {
        font-size: 2.5em;
        letter-spacing: 1px;
    }

    .birthday-message .name {
        font-size: 1.5em;
    }

    .cake-emoji {
        font-size: 2.5em;
    }

    .gift-section {
        padding: 15px;
    }

    .gift-name {
        font-size: 1.5em;
    }

    .gift-link {
        font-size: 1em;
        padding: 10px 20px;
    }
}