* { 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;
    justify-content: center;
    align-items: center;
    overflow: hidden;
    transition: background 0.3s;
}

.settings-panel {
    position: fixed;
    top: 20px;
    right: 20px;
    background: rgba(0, 0, 0, 0.7);
    padding: 20px;
    border-radius: 10px;
    color: white;
    z-index: 20;
    backdrop-filter: blur(5px);
    max-width: 300px;
}

.stat {
    margin-bottom: 10px;
    font-weight: bold;
    font-size: 0.9em;
}

.difficulty-buttons {
    display: flex;
    gap: 8px;
    margin-top: 10px;
    flex-wrap: wrap;
}

.diff-btn {
    padding: 8px 12px;
    background: #555;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 0.8em;
    transition: all 0.2s;
    min-width: 60px;
    flex: 1;
}

.diff-btn:hover { background: #777; transform: scale(1.1); }
.diff-btn:active { transform: scale(0.95); }
.diff-btn.active { background: #ff6b6b; font-weight: bold; }

.container {
    text-align: center;
    position: relative;
    z-index: 10;
    transition: transform 0.3s ease;
    padding: 20px;
}

h1 {
    color: white;
    font-size: 3em;
    margin-bottom: 2rem;
    text-shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
    letter-spacing: 2px;
    transition: color 0.1s;
}

.chaos-button {
    padding: 20px 40px;
    font-size: 1.5em;
    font-weight: bold;
    color: white;
    background: linear-gradient(45deg, #ff6b6b, #ee5a6f);
    border: none;
    border-radius: 50px;
    cursor: pointer;
    box-shadow: 0 8px 15px rgba(0, 0, 0, 0.2);
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 1px;
    touch-action: manipulation;
}

.chaos-button:hover { transform: scale(1.05); box-shadow: 0 12px 20px rgba(0, 0, 0, 0.3); }
.chaos-button:active { transform: scale(0.98); }

.effect-zone {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 5;
}

.floating-text {
    position: fixed;
    font-size: 2em;
    font-weight: bold;
    animation: float-up 2s ease-out forwards;
    pointer-events: none;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
}

.score-buttons {
    display: flex;
    gap: 8px;
    margin-top: 10px;
}

.score-btn {
    flex: 1;
    padding: 8px 12px;
    background: rgba(255, 107, 107, 0.8);
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 0.85em;
    font-weight: bold;
    transition: all 0.2s;
}

.score-btn:hover { background: rgba(255, 107, 107, 1); transform: scale(1.05); }
.score-btn:active { transform: scale(0.95); }

.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 999;
}

.modal.hidden { display: none; }

.modal-content {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 30px;
    border-radius: 15px;
    max-width: 400px;
    max-height: 80vh;
    overflow-y: auto;
    color: white;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.modal-content h2 {
    margin-top: 0;
    text-align: center;
    margin-bottom: 20px;
}

#scoresList {
    max-height: 300px;
    overflow-y: auto;
    margin: 20px 0;
}

.score-item {
    background: rgba(255, 255, 255, 0.1);
    padding: 12px;
    margin: 8px 0;
    border-radius: 5px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-left: 4px solid rgba(255, 255, 255, 0.3);
}

.score-rank {
    font-weight: bold;
    color: #ffd700;
    min-width: 30px;
}

.modal-btn {
    padding: 10px 20px;
    margin: 5px;
    background: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-weight: bold;
    transition: all 0.2s;
}

.modal-btn:hover { transform: scale(1.05); }
.modal-btn.danger { background: #ff6b6b; color: white; }
.modal-btn.danger:hover { background: #ff5252; }

@keyframes float-up {
    0% { opacity: 1; transform: translateY(0) scale(1); }
    100% { opacity: 0; transform: translateY(-100px) scale(0.5); }
}

.particle {
    position: fixed;
    border-radius: 50%;
    pointer-events: none;
    animation: particle-burst 1s ease-out forwards;
}

@keyframes particle-burst {
    0% { opacity: 1; transform: translate(0, 0) scale(1); }
    100% { opacity: 0; transform: translate(var(--tx), var(--ty)) scale(0); }
}

.screen-shake { animation: shake 0.5s; }

@keyframes shake {
    0%, 100% { transform: translate(0, 0) rotate(0deg); }
    25% { transform: translate(-10px, -10px) rotate(1deg); }
    50% { transform: translate(10px, 10px) rotate(-1deg); }
    75% { transform: translate(-5px, 5px) rotate(0.5deg); }
}

.rainbow-text { animation: rainbow 2s linear forwards; }

@keyframes rainbow {
    0% { color: red; }
    16% { color: orange; }
    33% { color: yellow; }
    50% { color: lime; }
    66% { color: cyan; }
    83% { color: blue; }
    100% { color: magenta; }
}

.spin-button { animation: spin 1s linear; }

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

@media (max-width: 768px) {
    .settings-panel { top: 10px; right: 10px; left: 10px; max-width: none; padding: 15px; }
    .stat { font-size: 0.85em; margin-bottom: 8px; }
    .difficulty-buttons { gap: 6px; margin-top: 8px; }
    .diff-btn { padding: 6px 8px; font-size: 0.75em; min-width: 50px; }
    .container { padding: 15px; }
    h1 { font-size: 2em; margin-bottom: 1.5rem; letter-spacing: 1px; }
    .chaos-button { padding: 15px 30px; font-size: 1.2em; letter-spacing: 0.5px; min-height: 50px; }
    .floating-text { font-size: 1.5em; }
    @keyframes float-up {
        0% { opacity: 1; transform: translateY(0) scale(1); }
        100% { opacity: 0; transform: translateY(-80px) scale(0.5); }
    }
}

@media (max-width: 480px) {
    .settings-panel { top: 8px; right: 8px; left: 8px; padding: 12px; }
    .stat { font-size: 0.8em; margin-bottom: 6px; }
    .difficulty-buttons { gap: 5px; margin-top: 6px; }
    .diff-btn { padding: 6px 6px; font-size: 0.7em; min-width: 45px; min-height: 44px; }
    .container { padding: 10px; }
    h1 { font-size: 1.5em; margin-bottom: 1rem; }
    .chaos-button { padding: 14px 28px; font-size: 1em; min-height: 48px; min-width: 120px; }
    .chaos-button:hover { transform: scale(1.03); }
    .floating-text { font-size: 1.2em; }
    @keyframes float-up {
        0% { opacity: 1; transform: translateY(0) scale(1); }
        100% { opacity: 0; transform: translateY(-60px) scale(0.5); }
    }
    @keyframes shake {
        0%, 100% { transform: translate(0, 0) rotate(0deg); }
        25% { transform: translate(-5px, -5px) rotate(0.5deg); }
        50% { transform: translate(5px, 5px) rotate(-0.5deg); }
        75% { transform: translate(-3px, 3px) rotate(0.25deg); }
    }
}

@media (orientation: landscape) and (max-height: 600px) {
    .container { margin-top: 0; }
    h1 { font-size: 1.5em; margin-bottom: 0.8rem; }
    .chaos-button { padding: 12px 24px; font-size: 0.95em; }
    .settings-panel { max-height: 90vh; overflow-y: auto; }
}