@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=Kanit:wght@300;400;500;600;700;800;900&family=Sarabun:wght@300;400;500;600;700;800&display=swap');

* {
    font-family: 'Inter', 'Kanit', 'Sarabun', sans-serif;
}

html {
    height: 100%;
    width: 100%;
}

body {
    background: linear-gradient(135deg, #ff9a9e 0%, #fecfef 25%, #a8edea 50%, #fed6e3 75%, #ffecd2 100%);
    background-size: 400% 400%;
    animation: gradientShift 20s ease infinite;
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
    margin: 0;
    padding: 0;
}

body::before {
    content: "";
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(circle at 25% 25%, rgba(255, 255, 255, 0.3) 2px, transparent 2px),
        radial-gradient(circle at 75% 75%, rgba(255, 255, 255, 0.2) 1px, transparent 1px),
        url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.08'%3E%3Ccircle cx='9' cy='9' r='2'/%3E%3Ccircle cx='51' cy='51' r='2'/%3E%3Ccircle cx='21' cy='45' r='1'/%3E%3Ccircle cx='45' cy='15' r='1'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    background-size: 100px 100px, 50px 50px, 60px 60px;
    animation: background-float 25s ease-in-out infinite;
    z-index: -1;
}

body::after {
    content: "";
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, transparent 40%, rgba(255, 255, 255, 0.05) 50%, transparent 60%);
    background-size: 200px 200px;
    animation: shimmer 8s ease-in-out infinite;
    z-index: -1;
    pointer-events: none;
}

@keyframes background-float {
    0%, 100% { transform: translateX(0) translateY(0); }
    25% { transform: translateX(-10px) translateY(-5px); }
    50% { transform: translateX(10px) translateY(5px); }
    75% { transform: translateX(-5px) translateY(10px); }
}

@keyframes shimmer {
    0%, 100% { opacity: 0; }
    50% { opacity: 1; }
}

.floating {
    animation: float 3s ease-in-out infinite;
}

.floating-slow {
    animation: float 6s ease-in-out infinite;
}

.floating-delay {
    animation: float 3s ease-in-out 1.5s infinite;
}

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

@keyframes float {
    0% { transform: translateY(0px); }
    50% { transform: translateY(-15px); }
    100% { transform: translateY(0px); }
}

.bounce {
    animation: bounce 2s ease infinite;
}

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

.pulse {
    animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

@keyframes pulse {
    0% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.05); opacity: 0.8; }
    100% { transform: scale(1); opacity: 1; }
}

@keyframes gentle-bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}

@keyframes wiggle {
    0% { transform: rotate(0deg); }
    25% { transform: rotate(-3deg); }
    50% { transform: rotate(3deg); }
    75% { transform: rotate(-3deg); }
    100% { transform: rotate(0deg); }
}

@keyframes eye-glow {
    0%, 100% { fill: #fef3c7; }
    50% { fill: #fbbf24; }
}

@keyframes button-glow {
    0%, 100% { box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15), inset 0 1px 0 rgba(255, 255, 255, 0.3), 0 0 0 rgba(255, 106, 204, 0); }
    50% { box-shadow: 0 12px 35px rgba(0, 0, 0, 0.2), inset 0 1px 0 rgba(255, 255, 255, 0.4), 0 0 20px rgba(255, 106, 204, 0.6); }
}

.draggable {
    cursor: grab;
    transition: all 0.3s;
    border-radius: 18px;
    box-shadow: 0 10px 25px rgba(138, 43, 226, 0.2), 0 4px 10px rgba(0, 0, 0, 0.1);
    border: 2px solid rgba(255, 255, 255, 0.8);
    background: linear-gradient(145deg, #ffffff, #f1f5f9);
    user-select: none;
    -webkit-touch-callout: none;
    -webkit-user-select: none;
    -khtml-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    position: relative;
    z-index: 1;
    touch-action: none;
}

.draggable:active {
    cursor: grabbing;
    transform: scale(1.05) translateY(-5px);
    box-shadow: 0 12px 0 rgba(0, 0, 0, 0.1);
}

.dragging {
    opacity: 0.8;
    transform: scale(1.05);
    z-index: 1000;
}

.drop-zone {
    border: 3px dashed #c084fc;
    min-height: 90px;
    border-radius: 18px;
    transition: all 0.3s;
    background: linear-gradient(145deg, rgba(255, 255, 255, 0.4), rgba(249, 168, 212, 0.1));
    box-shadow: inset 0 4px 6px rgba(196, 132, 252, 0.1), 0 2px 10px rgba(196, 132, 252, 0.05);
}

.drop-zone.highlight {
    border-color: #3b82f6;
    background-color: rgba(219, 234, 254, 0.7);
    transform: scale(1.05);
}

.drop-zone.filled {
    border-style: solid;
    border-color: #60a5fa;
    background-color: rgba(239, 246, 255, 0.7);
}

#steps-container.highlight {
    background-color: rgba(219, 234, 254, 0.7);
    border-radius: 12px;
    box-shadow: inset 0 0 0 3px #3b82f6;
}

.screen {
    display: none;
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

#game-screen {
    max-width: 1400px;
}

.active {
    display: block;
}

.btn {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border-radius: 30px;
    box-shadow: 
        0 6px 20px rgba(0, 0, 0, 0.1), 
        inset 0 1px 0 rgba(255, 255, 255, 0.3),
        0 0 0 rgba(255, 106, 204, 0);
    font-family: 'Inter', 'Kanit', sans-serif;
    font-weight: 600;
    letter-spacing: 1px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    cursor: pointer;
    position: relative;
    overflow: hidden;
    animation: gentle-bounce 3s ease-in-out infinite;
    text-shadow: 
        0 1px 3px rgba(0, 0, 0, 0.15),
        0 0 6px rgba(255, 255, 255, 0.2);
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
    transition: left 0.5s;
}

.btn::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transition: width 0.6s, height 0.6s, top 0.6s, left 0.6s;
    transform: translate(-50%, -50%);
}

.btn:hover::before {
    left: 100%;
}

.btn:hover::after {
    width: 300px;
    height: 300px;
    top: 50%;
    left: 50%;
}

.btn:hover {
    transform: translateY(-8px) scale(1.08);
    box-shadow: 
        0 20px 45px rgba(0, 0, 0, 0.25), 
        inset 0 2px 0 rgba(255, 255, 255, 0.5),
        0 0 30px rgba(255, 106, 204, 0.4);
    animation: button-glow 2s ease-in-out infinite;
}

.btn:active {
    transform: translateY(-3px) scale(1.03);
    box-shadow: 0 12px 25px rgba(0, 0, 0, 0.2);
    animation: none;
}

.timer-bar {
    height: 12px;
    background-color: #22c55e;
    transition: width 1s linear;
    border-radius: 999px;
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.1);
}

.category-card {
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border-radius: 24px;
    overflow: hidden;
    box-shadow: 
        0 8px 25px rgba(255, 102, 204, 0.15), 
        0 3px 10px rgba(0, 0, 0, 0.05),
        inset 0 1px 0 rgba(255, 255, 255, 0.6);
    cursor: pointer;
    border: 2px solid rgba(255, 255, 255, 0.4);
    background: linear-gradient(145deg, #ffffff, #f8fafc);
    position: relative;
    animation: gentle-bounce 4s ease-in-out infinite;
}

.category-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.2), transparent);
    opacity: 0;
    transition: opacity 0.3s;
    border-radius: 21px;
}

.category-card:hover::before {
    opacity: 1;
}

.category-card:hover {
    transform: translateY(-15px) scale(1.08) rotate(2deg);
    box-shadow: 
        0 25px 60px rgba(255, 102, 204, 0.4), 
        0 15px 35px rgba(138, 43, 226, 0.25),
        inset 0 2px 0 rgba(255, 255, 255, 0.9);
    border-color: #ff6acc;
    animation: wiggle 0.6s ease-in-out;
}

.category-card:active {
    transform: translateY(-8px) scale(1.03);
}

.category-card h3 {
    font-size: 1.5rem;
    font-weight: bold;
    margin-bottom: 0.5rem;
    white-space: nowrap;
}

.player-score {
    transition: all 0.3s;
    border-radius: 10px;
}

.player-score.highlight {
    transform: scale(1.05);
    background-color: #fef3c7;
    box-shadow: 0 0 15px rgba(251, 191, 36, 0.5);
}

.game-container {
    background: linear-gradient(145deg, rgba(255, 255, 255, 0.95), rgba(248, 250, 252, 0.9));
    border-radius: 30px;
    box-shadow: 0 10px 40px rgba(255, 102, 204, 0.12), 0 4px 20px rgba(0, 0, 0, 0.06), inset 0 1px 0 rgba(255, 255, 255, 0.6);
    border: 2px solid rgba(255, 255, 255, 0.25);
    overflow: hidden;
    position: relative;
}

.game-container::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url("data:image/svg+xml,%3Csvg width='52' height='26' viewBox='0 0 52 26' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%239C92AC' fill-opacity='0.05'%3E%3Cpath d='M10 10c0-2.21-1.79-4-4-4-3.314 0-6-2.686-6-6h2c0 2.21 1.79 4 4 4 3.314 0 6 2.686 6 6 0 2.21 1.79 4 4 4 3.314 0 6 2.686 6 6 0 2.21 1.79 4 4 4v2c-3.314 0-6-2.686-6-6 0-2.21-1.79-4-4-4-3.314 0-6-2.686-6-6zm25.464-1.95l8.486 8.486-1.414 1.414-8.486-8.486 1.414-1.414z' /%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    z-index: -1;
}

.player-count-btn {
    width: 70px;
    height: 70px;
    border-radius: 50%;
    font-size: 28px;
    box-shadow: 
        0 8px 0 rgba(0, 0, 0, 0.1),
        0 4px 15px rgba(0, 0, 0, 0.1),
        inset 0 2px 0 rgba(255, 255, 255, 0.4);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    font-family: 'Inter', 'Kanit', sans-serif;
    border: 3px solid rgba(255, 255, 255, 0.4);
    cursor: pointer;
    position: relative;
    animation: pulse 2s ease-in-out infinite;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.player-count-btn::before {
    content: '';
    position: absolute;
    top: -3px;
    left: -3px;
    right: -3px;
    bottom: -3px;
    border-radius: 50%;
    background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    opacity: 0;
    transition: opacity 0.3s;
}

.player-count-btn:hover::before {
    opacity: 1;
    animation: wiggle 0.5s ease-in-out;
}

.player-count-btn:hover {
    transform: translateY(-8px) scale(1.1);
    box-shadow: 
        0 15px 0 rgba(0, 0, 0, 0.1),
        0 8px 25px rgba(0, 0, 0, 0.15),
        inset 0 3px 0 rgba(255, 255, 255, 0.5);
    animation: wiggle 0.6s ease-in-out;
}

.player-count-btn:active {
    transform: translateY(3px) scale(1.05);
    box-shadow: 
        0 5px 0 rgba(0, 0, 0, 0.1),
        0 2px 10px rgba(0, 0, 0, 0.1);
}

.cloud {
    position: absolute;
    z-index: -1;
    opacity: 0.8;
}

.cloud-1 {
    top: 10%;
    left: 5%;
    animation: cloud-move 30s linear infinite;
}

.cloud-2 {
    top: 20%;
    right: 5%;
    animation: cloud-move 25s linear infinite reverse;
}

.cloud-3 {
    top: 60%;
    left: 10%;
    animation: cloud-move 35s linear infinite;
    opacity: 0.7;
}

.cloud-4 {
    top: 40%;
    right: 15%;
    animation: cloud-move 28s linear infinite reverse;
    opacity: 0.6;
}

@keyframes cloud-move {
    0% { transform: translateX(0); }
    50% { transform: translateX(30vw); }
    100% { transform: translateX(0); }
}

.star {
    position: absolute;
    background: linear-gradient(45deg, #ffd700, #ffb347, #ff69b4);
    clip-path: polygon(50% 0%, 61% 35%, 98% 35%, 68% 57%, 79% 91%, 50% 70%, 21% 91%, 32% 57%, 2% 35%, 39% 35%);
    z-index: -1;
    opacity: 0.8;
    animation: twinkle 4s ease-in-out infinite;
    filter: drop-shadow(0 0 10px rgba(255, 215, 0, 0.8));
}

@keyframes twinkle {
    0%, 100% { opacity: 0.6; transform: scale(1) rotate(0deg); }
    25% { opacity: 1; transform: scale(1.2) rotate(90deg); }
    50% { opacity: 0.8; transform: scale(1.1) rotate(180deg); }
    75% { opacity: 1; transform: scale(1.3) rotate(270deg); }
}

.title-3d {
    font-family: 'Inter', 'Kanit', sans-serif;
    font-weight: 900;
    color: #1e40af;
    text-shadow: 
        4px 4px 8px rgba(0, 0, 0, 0.6),
        0 0 20px rgba(30, 64, 175, 0.8),
        0 0 40px rgba(59, 130, 246, 0.6);
    animation: title-glow 6s ease-in-out infinite, gentle-bounce 8s ease-in-out infinite;
    filter: drop-shadow(0 8px 20px rgba(0, 0, 0, 0.3));
    letter-spacing: 3px;
    line-height: 1.1;
    position: relative;
}

@keyframes title-glow {
    0%, 100% { 
        text-shadow: 
            4px 4px 12px rgba(0, 0, 0, 0.4),
            0 0 25px rgba(255, 255, 255, 0.6),
            0 0 50px rgba(59, 130, 246, 0.5);
    }
    25% { 
        text-shadow: 
            4px 4px 12px rgba(0, 0, 0, 0.4),
            0 0 30px rgba(96, 165, 250, 0.8),
            0 0 60px rgba(147, 197, 253, 0.6);
    }
    50% { 
        text-shadow: 
            4px 4px 12px rgba(0, 0, 0, 0.4),
            0 0 35px rgba(30, 58, 138, 0.8),
            0 0 70px rgba(59, 130, 246, 0.6);
    }
    75% { 
        text-shadow: 
            4px 4px 12px rgba(0, 0, 0, 0.4),
            0 0 40px rgba(219, 234, 254, 0.8),
            0 0 80px rgba(96, 165, 250, 0.6);
    }
}

.super-sparkle {
    display: inline-block;
    animation: super-sparkle 2s ease-in-out infinite;
    font-size: 0.8em;
    margin: 0 0.1em;
    filter: drop-shadow(0 0 15px rgba(255, 215, 0, 0.8));
}

@keyframes super-sparkle {
    0%, 100% { 
        transform: scale(1) rotate(0deg);
        opacity: 0.8;
        filter: drop-shadow(0 0 15px rgba(255, 215, 0, 0.8));
    }
    25% { 
        transform: scale(1.3) rotate(90deg);
        opacity: 1;
        filter: drop-shadow(0 0 25px rgba(255, 105, 180, 1));
    }
    50% { 
        transform: scale(1.1) rotate(180deg);
        opacity: 0.9;
        filter: drop-shadow(0 0 20px rgba(50, 205, 50, 0.9));
    }
    75% { 
        transform: scale(1.4) rotate(270deg);
        opacity: 1;
        filter: drop-shadow(0 0 30px rgba(138, 43, 226, 1));
    }
}

.subtitle-3d {
    font-family: 'Inter', 'Kanit', sans-serif;
    font-weight: 600;
    color: #1f2937;
    text-shadow: 
        2px 2px 4px rgba(0, 0, 0, 0.5),
        0 0 10px rgba(255, 255, 255, 0.8);
    letter-spacing: 1px;
    filter: drop-shadow(0 3px 6px rgba(0, 0, 0, 0.2));
    line-height: 1.3;
}

.robot-character {
    filter: drop-shadow(0 10px 25px rgba(0, 0, 0, 0.15));
    transition: all 0.3s ease;
}

.interactive-robot {
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    filter: drop-shadow(0 5px 15px rgba(59, 130, 246, 0.3));
}

.interactive-robot:hover {
    transform: scale(1.05);
    animation: wiggle 0.6s ease-in-out;
    filter: drop-shadow(0 8px 25px rgba(59, 130, 246, 0.4));
}

.interactive-robot:active {
    transform: scale(0.98);
}

.robot-eye-left, .robot-eye-right {
    animation: eye-glow 2s ease-in-out infinite;
    transform-origin: center;
}

.robot-eye-left:hover, .robot-eye-right:hover {
    animation: eye-glow 0.3s ease-in-out infinite;
}

.robot-status-light {
    animation: pulse 1.5s ease-in-out infinite;
}

.speech-bubble {
    animation: gentle-bounce 2s ease-in-out infinite;
    box-shadow: 0 4px 15px rgba(251, 191, 36, 0.3);
    border: 2px solid rgba(255, 255, 255, 0.6);
    position: relative;
}

.speech-bubble::before {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 20px;
    width: 0;
    height: 0;
    border-left: 8px solid transparent;
    border-right: 8px solid transparent;
    border-top: 8px solid #fde047;
}

.confetti {
    position: absolute;
    width: 10px;
    height: 10px;
    opacity: 0;
}

@keyframes confetti-fall {
    0% { transform: translateY(0) rotate(0deg); opacity: 1; }
    100% { transform: translateY(100vh) rotate(720deg); opacity: 0; }
}

.correct-answer {
    animation: correct-pulse 0.5s ease-in-out;
}

@keyframes correct-pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.1); background-color: rgba(34, 197, 94, 0.2); }
    100% { transform: scale(1); }
}

.wrong-answer {
    animation: wrong-shake 0.5s ease-in-out;
}

@keyframes wrong-shake {
    0% { transform: translateX(0); }
    25% { transform: translateX(-10px); background-color: rgba(239, 68, 68, 0.2); }
    50% { transform: translateX(10px); }
    75% { transform: translateX(-10px); }
    100% { transform: translateX(0); }
}

/* Popup Modal สำหรับแสดงผลคำตอบ - อัปเกรดใหม่ */
#answer-modal {
    backdrop-filter: blur(10px);
    background: rgba(0, 0, 0, 0.6);
    animation: modal-fade-in 0.4s ease-out;
    z-index: 9999 !important;
    position: fixed !important;
}

#answer-modal .bg-white {
    background: linear-gradient(145deg, #ffffff, #f8fafc);
    border: 3px solid rgba(255, 255, 255, 0.8);
    box-shadow: 
        0 15px 35px rgba(0, 0, 0, 0.2),
        inset 0 1px 0 rgba(255, 255, 255, 0.6),
        0 0 0 1px rgba(138,43, 226, 0.08);
    position: relative;
    overflow: hidden;
}

#answer-modal .bg-white::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.1), transparent 50%, rgba(138, 43, 226, 0.05));
    z-index: 1;
    pointer-events: none;
}

#answer-modal .bg-white > * {
    position: relative;
    z-index: 2;
}

.modal-slide-in {
    animation: slideIn 0.5s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}

@keyframes modal-fade-in {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: scale(0.6) translateY(-100px) rotate(-5deg);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0) rotate(0deg);
    }
}

.modal-title {
    background: linear-gradient(135deg, #7c3aed, #a855f7, #c084fc);
    background-size: 200% 200%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradient-slide 3s ease infinite;
    font-family: 'Inter', 'Kanit', sans-serif;
    font-weight: 700;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    margin-bottom: 1rem;
}

@keyframes gradient-slide {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

.modal-content-text {
    color: #374151;
    font-size: 1.1rem;
    line-height: 1.6;
    margin-bottom: 1.5rem;
    font-weight: 500;
}

.modal-emoji {
    font-size: 3rem;
    margin: 1rem 0;
    display: inline-block;
    animation: emoji-bounce 2s ease-in-out infinite;
}

@keyframes emoji-bounce {
    0%, 100% { transform: translateY(0) scale(1); }
    50% { transform: translateY(-10px) scale(1.1); }
}

#close-modal-btn {
    background: linear-gradient(135deg, #7c3aed 0%, #a855f7 50%, #c084fc 100%);
    background-size: 200% 200%;
    border: none;
    color: white;
    font-family: 'Inter', 'Kanit', sans-serif;
    font-weight: 600;
    font-size: 1.1rem;
    padding: 12px 30px;
    border-radius: 25px;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 
        0 8px 25px rgba(124, 58, 237, 0.4),
        inset 0 1px 0 rgba(255, 255, 255, 0.3);
    position: relative;
    overflow: hidden;
    animation: button-glow-modal 3s ease-in-out infinite;
}

#close-modal-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
    transition: left 0.5s;
}

#close-modal-btn:hover {
    transform: translateY(-3px) scale(1.05);
    background-position: 100% 50%;
    box-shadow: 
        0 12px 35px rgba(124, 58, 237, 0.6),
        inset 0 1px 0 rgba(255, 255, 255, 0.4);
}

#close-modal-btn:hover::before {
    left: 100%;
}

@keyframes button-glow-modal {
    0%, 100% { 
        box-shadow: 
            0 8px 25px rgba(124, 58, 237, 0.4),
            inset 0 1px 0 rgba(255, 255, 255, 0.3);
    }
    50% { 
        box-shadow: 
            0 12px 35px rgba(124, 58, 237, 0.6),
            inset 0 1px 0 rgba(255, 255, 255, 0.4);
    }
}

.correct-emoji {
    animation: correctBounce 0.6s ease-in-out;
}

@keyframes correctBounce {
    0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
    40% { transform: translateY(-30px); }
    60% { transform: translateY(-15px); }
}

.wrong-emoji {
    animation: wrongShake 0.6s ease-in-out;
}

@keyframes wrongShake {
    0%, 100% { transform: translateX(0); }
    10%, 30%, 50%, 70%, 90% { transform: translateX(-10px); }
    20%, 40%, 60%, 80% { transform: translateX(10px); }
}

/* เพิ่มสไตล์สำหรับองค์ประกอบตกแต่งมหัศจรรย์ */
.magic-sparkle {
    position: absolute;
    font-size: 2rem;
    opacity: 0.8;
    animation: magic-float 4s ease-in-out infinite, magic-glow 3s ease-in-out infinite;
    z-index: 1;
    pointer-events: none;
}

@keyframes magic-float {
    0%, 100% { transform: translateY(0) rotate(0deg) scale(1); }
    25% { transform: translateY(-20px) rotate(90deg) scale(1.1); }
    50% { transform: translateY(-10px) rotate(180deg) scale(1.05); }
    75% { transform: translateY(-25px) rotate(270deg) scale(1.15); }
}

@keyframes magic-glow {
    0%, 100% { filter: drop-shadow(0 0 10px rgba(255, 215, 0, 0.6)); }
    33% { filter: drop-shadow(0 0 15px rgba(255, 105, 180, 0.8)); }
    66% { filter: drop-shadow(0 0 20px rgba(78, 205, 196, 0.7)); }
}

.floating-elements {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

/* Tailwind utility classes */
.hidden { display: none !important; }
.flex { display: flex; }
.grid { display: grid; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.flex-col { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }
.font-bold { font-weight: 700; }
.font-semibold { font-weight: 600; }
.font-medium { font-weight: 500; }
.text-sm { font-size: 0.875rem; }
.text-lg { font-size: 1.125rem; }
.text-xl { font-size: 1.25rem; }
.text-2xl { font-size: 1.5rem; }
.text-3xl { font-size: 1.875rem; }
.text-4xl { font-size: 2.25rem; }
.text-5xl { font-size: 3rem; }
.text-6xl { font-size: 3.75rem; }
.text-7xl { font-size: 4.5rem; }
.text-8xl { font-size: 6rem; }
.mb-1 { margin-bottom: 0.25rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-4 { margin-bottom: 1rem; }
.mb-5 { margin-bottom: 1.25rem; }
.mb-6 { margin-bottom: 1.5rem; }
.mb-8 { margin-bottom: 2rem; }
.mt-2 { margin-top: 0.5rem; }
.mt-6 { margin-top: 1.5rem; }
.mt-8 { margin-top: 2rem; }
.mr-2 { margin-right: 0.5rem; }
.mr-4 { margin-right: 1rem; }
.p-3 { padding: 0.75rem; }
.p-4 { padding: 1rem; }
.p-6 { padding: 1.5rem; }
.p-8 { padding: 2rem; }
.px-4 { padding-left: 1rem; padding-right: 1rem; }
.px-8 { padding-left: 2rem; padding-right: 2rem; }
.py-2 { padding-top: 0.5rem; padding-bottom: 0.5rem; }
.py-3 { padding-top: 0.75rem; padding-bottom: 0.75rem; }
.w-full { width: 100%; }
.w-6 { width: 1.5rem; }
.w-12 { width: 3rem; }
.h-6 { height: 1.5rem; }
.h-12 { height: 3rem; }
.max-w-md { max-width: 28rem; }
.max-h-60 { max-height: 15rem; }
.min-h-screen { min-height: 100vh; }
.min-h-[80vh] { min-height: 80vh; }
.min-h-[90px] { min-height: 90px; }
.gap-4 { gap: 1rem; }
.gap-6 { gap: 1.5rem; }
.gap-8 { gap: 2rem; }
.border { border-width: 1px; }
.border-gray-300 { border-color: #d1d5db; }
.border-green-200 { border-color: #bbf7d0; }
.border-red-200 { border-color: #fecaca; }
.rounded-lg { border-radius: 0.5rem; }
.rounded-xl { border-radius: 0.75rem; }
.rounded-2xl { border-radius: 1rem; }
.rounded-full { border-radius: 9999px; }
.shadow-sm { box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.05); }
.shadow-md { box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06); }
.shadow-lg { box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05); }
.shadow-2xl { box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25); }
.grid-cols-1 { grid-template-columns: repeat(1, minmax(0, 1fr)); }
.grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.overflow-hidden { overflow: hidden; }
.overflow-y-auto { overflow-y: auto; }
.bg-white { background-color: #ffffff; }
.bg-gray-200 { background-color: #e5e7eb; }
.bg-gray-700 { background-color: #374151; }
.bg-blue-500 { background-color: #3b82f6; }
.bg-green-500 { background-color: #10b981; }
.bg-green-50 { background-color: #f0fdf4; }
.bg-red-50 { background-color: #fef2f2; }
.bg-yellow-500 { background-color: #eab308; }
.bg-purple-50 { background-color: #faf5ff; }
.bg-black { background-color: #000000; }
.bg-opacity-50 { background-opacity: 0.5; }
.text-white { color: #ffffff; }
.text-gray-400 { color: #9ca3af; }
.text-gray-600 { color: #607d8b; }
.text-gray-700 { color: #455a64; }
.text-blue-600 { color: #2196f3; }
.text-green-600 { color: #4caf50; }
.text-green-700 { color: #8bc34a; }
.text-red-600 { color: #f44336; }
.text-red-700 { color: #d32f2f; }
.text-yellow-600 { color: #ffc107; }
.text-purple-600 { color: #673ab7; }
.text-indigo-600 { color: #9c27b0; }
.text-indigo-700 { color: #1e40af; }

.player-name-display {
    color: #1f2937 !important;
    font-weight: 700 !important;
    text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.3) !important;
}
.text-amber-600 { color: #ff9800; }
.bg-gradient-to-r { background-image: linear-gradient(to right, var(--tw-gradient-stops)); }
.bg-gradient-to-b { background-image: linear-gradient(to bottom, var(--tw-gradient-stops)); }
.from-blue-100 { --tw-gradient-from: #dbeafe; --tw-gradient-stops: var(--tw-gradient-from), var(--tw-gradient-to, rgba(219, 234, 254, 0)); }
.from-blue-400 { --tw-gradient-from: #60a5fa; --tw-gradient-stops: var(--tw-gradient-from), var(--tw-gradient-to, rgba(96, 165, 250, 0)); }
.from-green-400 { --tw-gradient-from: #4ade80; --tw-gradient-stops: var(--tw-gradient-from), var(--tw-gradient-to, rgba(74, 222, 128, 0)); }
.from-yellow-400 { --tw-gradient-from: #facc15; --tw-gradient-stops: var(--tw-gradient-from), var(--tw-gradient-to, rgba(250, 204, 21, 0)); }
.from-pink-400 { --tw-gradient-from: #f472b6; --tw-gradient-stops: var(--tw-gradient-from), var(--tw-gradient-to, rgba(244, 114, 182, 0)); }
.from-gray-400 { --tw-gradient-from: #9ca3af; --tw-gradient-stops: var(--tw-gradient-from), var(--tw-gradient-to, rgba(156, 163, 175, 0)); }
.from-purple-100 { --tw-gradient-from: #e9d5ff; --tw-gradient-stops: var(--tw-gradient-from), var(--tw-gradient-to, rgba(233, 213, 255, 0)); }
.from-purple-400 { --tw-gradient-from: #a855f7; --tw-gradient-stops: var(--tw-gradient-from), var(--tw-gradient-to, rgba(168, 85, 247, 0)); }
.from-purple-50 { --tw-gradient-from: #faf5ff; --tw-gradient-stops: var(--tw-gradient-from), var(--tw-gradient-to, rgba(250, 245, 255, 0)); }
.from-indigo-50 { --tw-gradient-from: #eef2ff; --tw-gradient-stops: var(--tw-gradient-from), var(--tw-gradient-to, rgba(238, 242, 255, 0)); }
.from-amber-400 { --tw-gradient-from: #fbbf24; --tw-gradient-stops: var(--tw-gradient-from), var(--tw-gradient-to, rgba(251, 191, 36, 0)); }
.to-blue-200 { --tw-gradient-to: #bfdbfe; }
.to-blue-500 { --tw-gradient-to: #3b82f6; }
.to-blue-600 { --tw-gradient-to: #2563eb; }
.to-green-500 { --tw-gradient-to: #10b981; }
.to-green-600 { --tw-gradient-to: #16a34a; }
.to-yellow-500 { --tw-gradient-to: #eab308; }
.to-yellow-600 { --tw-gradient-to: #ca8a04; }
.to-pink-500 { --tw-gradient-to: #ec4899; }
.to-pink-600 { --tw-gradient-to: #db2777; }
.to-gray-500 { --tw-gradient-to: #6b7280; }
.to-gray-600 { --tw-gradient-to: #4b5563; }
.to-purple-500 { --tw-gradient-to: #8b5cf6; }
.to-purple-600 { --tw-gradient-to: #7c3aed; }
.to-purple-200 { --tw-gradient-to: #ddd6fe; }
.to-pink-50 { --tw-gradient-to: #fdf2f8; }
.to-blue-50 { --tw-gradient-to: #eff6ff; }
.to-amber-500 { --tw-gradient-to: #f59e0b; }
.hover\:from-blue-500:hover { --tw-gradient-from: #3b82f6; --tw-gradient-stops: var(--tw-gradient-from), var(--tw-gradient-to, rgba(59, 130, 246, 0)); }
.hover\:from-green-500:hover { --tw-gradient-from: #10b981; --tw-gradient-stops: var(--tw-gradient-from), var(--tw-gradient-to, rgba(16, 185, 129, 0)); }
.hover\:from-yellow-500:hover { --tw-gradient-from: #eab308; --tw-gradient-stops: var(--tw-gradient-from), var(--tw-gradient-to, rgba(234, 179, 8, 0)); }
.hover\:from-pink-500:hover { --tw-gradient-from: #ec4899; --tw-gradient-stops: var(--tw-gradient-from), var(--tw-gradient-to, rgba(236, 72, 153, 0)); }
.hover\:from-gray-500:hover { --tw-gradient-from: #6b7280; --tw-gradient-stops: var(--tw-gradient-from), var(--tw-gradient-to, rgba(107, 114, 128, 0)); }
.hover\:from-purple-500:hover { --tw-gradient-from: #8b5cf6; --tw-gradient-stops: var(--tw-gradient-from), var(--tw-gradient-to, rgba(139, 92, 246, 0)); }
.hover\:to-blue-600:hover { --tw-gradient-to: #2563eb; }
.hover\:to-green-600:hover { --tw-gradient-to: #16a34a; }
.hover\:to-yellow-600:hover { --tw-gradient-to: #ca8a04; }
.hover\:to-pink-600:hover { --tw-gradient-to: #db2777; }
.hover\:to-gray-600:hover { --tw-gradient-to: #4b5563; }
.hover\:to-purple-600:hover { --tw-gradient-to: #7c3aed; }
.hover\:bg-gray-50:hover { background-color: #f9fafb; }
.focus\:ring-blue-500:focus { --tw-ring-color: #3b82f6; }
.focus\:border-blue-500:focus { border-color: #3b82f6; }
.fixed { position: fixed; }
.absolute { position: absolute; }
.relative { position: relative; }
.inset-0 { top: 0; right: 0; bottom: 0; left: 0; }
.z-50 { z-index: 50; }
.z-10 { z-index: 10; }
.inline-block { display: inline-block; }
.transform { transform: translateX(var(--tw-translate-x, 0)) translateY(var(--tw-translate-y, 0)) rotate(var(--tw-rotate, 0)) skewX(var(--tw-skew-x, 0)) skewY(var(--tw-skew-y, 0)) scaleX(var(--tw-scale-x, 1)) scaleY(var(--tw-scale-y, 1)); }
.-rotate-12 { --tw-rotate: -12deg; }
.scale-1 { --tw-scale-x: 1; --tw-scale-y: 1; }

/* Desktop styles */
    @media (min-width: 1025px) {
        .draggable {
            cursor: grab;
            touch-action: auto;
        }

        .draggable:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 0 rgba(0, 0, 0, 0.1);
        }

        .draggable:active {
            cursor: grabbing;
        }

        .drop-zone {
            touch-action: auto;
        }

        button, .category-card, .player-count-btn {
            touch-action: auto;
        }
    }

    @media (max-width: 640px) {
        .title-3d {
            font-size: 2.5rem;
            color: #1e40af;
            text-shadow: 
                2px 2px 4px rgba(0, 0, 0, 0.6),
                0 0 15px rgba(30, 64, 175, 0.8);
            letter-spacing: 1px;
            line-height: 1.1;
        }

        .subtitle-3d {
            font-size: 1.1rem;
            color: #1f2937;
            text-shadow: 
                1px 1px 3px rgba(0, 0, 0, 0.5),
                0 0 8px rgba(255, 255, 255, 0.7);
            letter-spacing: 0.8px;
        }

        .draggable {
            min-height: 80px;
            font-size: 1rem;
            padding: 0.75rem;
            cursor: pointer;
            -webkit-tap-highlight-color: rgba(59, 130, 246, 0.2);
            -webkit-touch-callout: none;
            -webkit-user-select: none;
            -khtml-user-select: none;
            -moz-user-select: none;
            -ms-user-select: none;
            user-select: none;
            touch-action: manipulation;
            transition: all 0.2s ease;
            position: relative;
        }

        .draggable:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 0 rgba(0, 0, 0, 0.1);
        }

        .drop-zone {
            min-height: 80px;
            font-size: 1rem;
            border-width: 2px;
            transition: all 0.2s ease;
            cursor: pointer;
            -webkit-tap-highlight-color: rgba(59, 130, 246, 0.2);
            touch-action: manipulation;
        }

        .selected {
            background-color: rgba(59, 130, 246, 0.3) !important;
            border: 2px solid #3b82f6 !important;
            transform: scale(1.02) !important;
        }

        .player-count-btn {
            width: 60px;
            height: 60px;
            font-size: 24px;
            -webkit-tap-highlight-color: transparent;
            touch-action: manipulation;
            transition: transform 0.1s ease;
        }

        .game-container {
            margin: 10px;
            padding: 1rem;
        }

        .btn {
            padding: 0.75rem 1.5rem;
            font-size: 1rem;
            -webkit-tap-highlight-color: transparent;
            min-height: 48px;
            touch-action: manipulation;
            transition: transform 0.1s ease;
        }

        .category-card {
            -webkit-tap-highlight-color: transparent;
            touch-action: manipulation;
            transition: transform 0.1s ease;
        }

        body {
            -webkit-text-size-adjust: 100%;
            -ms-text-size-adjust: 100%;
            touch-action: manipulation;
        }

        /* ปรับปรุงการตอบสนองการสัมผัส */
        * {
            -webkit-tap-highlight-color: transparent;
            -webkit-touch-callout: none;
        }

        button, .category-card, .player-count-btn, .drop-zone {
            -ms-touch-action: manipulation;
            touch-action: manipulation;
        }

        .draggable {
            -ms-touch-action: manipulation;
            touch-action: manipulation;
        }
    }

@media (min-width: 641px) and (max-width: 1024px) {
    .draggable {
        min-height: 85px;
        font-size: 1.05rem;
    }

    .drop-zone {
        min-height: 85px;
    }
}

/* สไตล์สำหรับสถิติรวม */
.border-l-4 { border-left-width: 4px; }
.border-yellow-400 { border-left-color: #fbbf24; }
.border-gray-400 { border-left-color: #9ca3af; }
.border-orange-400 { border-left-color: #fb923c; }

.text-orange-600 { color: #ea580c; }
.text-orange-700 { color: #c2410c; }
.text-teal-600 { color: #0d9488; }
.text-teal-700 { color: #0f766e; }

.from-yellow-50 { --tw-gradient-from: #fefce8; --tw-gradient-stops: var(--tw-gradient-from), var(--tw-gradient-to, rgba(254, 252, 232, 0)); }
.from-orange-50 { --tw-gradient-from: #fff7ed; --tw-gradient-stops: var(--tw-gradient-from), var(--tw-gradient-to, rgba(255, 247, 237, 0)); }
.from-green-50 { --tw-gradient-from: #f0fdf4; --tw-gradient-stops: var(--tw-gradient-from), var(--tw-gradient-to, rgba(240, 253, 244, 0)); }
.from-teal-50 { --tw-gradient-from: #f0fdfa; --tw-gradient-stops: var(--tw-gradient-from), var(--tw-gradient-to, rgba(240, 253, 250, 0)); }
.to-orange-50 { --tw-gradient-to: #fff7ed; }
.to-teal-50 { --tw-gradient-to: #f0fdfa; }

@media (min-width: 768px) {
    .md\:grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
    .md\:grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
    .md\:text-6xl { font-size: 3.75rem; }
}

@media (orientation: portrait) and (max-width: 768px) {
    #steps-container {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 0.75rem;
    }

    #drop-zones {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 0.75rem;
    }
}

@media (orientation: landscape) and (max-height: 600px) {
    .screen {
        padding: 10px;
    }

    .title-3d {
        font-size: 2rem;
        margin-bottom: 1rem;
    }

    .game-container {
        padding: 1rem;
    }
}

.white-text-shadow {
    color: #ffffff !important;
    text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.6), 0 0 8px rgba(0, 0, 0, 0.4);
    font-weight: 600;
}

.game-intro-text {
    background: linear-gradient(45deg, #ff4081, #e91e63, #9c27b0, #673ab7);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 600;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
}

.category-title, .register-title {
    color: #ffffff !important;
    font-weight: 700 !important;
    text-shadow: 
        2px 2px 4px rgba(0, 0, 0, 0.6),
        0 0 10px rgba(0, 0, 0, 0.4),
        0 0 15px rgba(59, 130, 246, 0.3),
        1px 1px 2px rgba(0, 0, 0, 0.7) !important;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.3));
    letter-spacing: 1px;
}

.game-title {
    color: #1e40af !important;
    font-weight: 700 !important;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.4) !important;
}