:root {
    --bg-color: #0D1117;
    --primary-color: #007BFF; /* Electric Blue */
    --card-bg: rgba(22, 27, 34, 0.7);
    --border-color: rgba(48, 54, 61, 0.8);
    --text-color: #E6EDF3;
    --text-dim: #909DAB;
    --success-color: #238636;
    --danger-color: #DA3633;
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    overflow: hidden;
    position: relative;
}

/* NEW: Clean, static background with subtle texture */
body::before {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background: 
        radial-gradient(circle at 10% 10%, rgba(0, 123, 255, 0.1), transparent 30%),
        radial-gradient(circle at 90% 90%, rgba(0, 123, 255, 0.1), transparent 30%);
    z-index: -2;
}

body::after {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background-image: 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='%23161b22' fill-opacity='0.4'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    z-index: -1;
}


#app-container { width: 100%; max-width: 500px; padding: 20px; z-index: 1; }

.screen { display: none; }
.screen.active {
    display: block;
    animation: screenEnter 0.5s cubic-bezier(0.215, 0.610, 0.355, 1.000) forwards;
}
@keyframes screenEnter {
    from { opacity: 0; transform: scale(0.98); }
    to { opacity: 1; transform: scale(1); }
}

.hidden { display: none !important; }

/* NEW: Clean, sharp frosted-glass card */
.glass-card {
    background: var(--card-bg);
    backdrop-filter: blur(12px);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 30px 40px;
    text-align: center;
    margin-bottom: 20px;
}

.title {
    font-family: 'Orbitron', sans-serif;
    font-size: 2.5rem;
    margin-bottom: 10px;
    color: var(--text-color);
}
.subtitle { color: var(--text-dim); margin-bottom: 30px; }

/* NEW: High-contrast buttons */
.btn {
    width: 100%;
    padding: 15px;
    border: 2px solid var(--primary-color);
    border-radius: 50px;
    font-family: 'Orbitron', sans-serif;
    font-weight: 700;
    font-size: 1rem;
    letter-spacing: 1px;
    cursor: pointer;
    background: transparent;
    color: var(--primary-color);
    transition: all 0.2s ease-in-out;
    text-transform: uppercase;
}
.btn:hover {
    background: var(--primary-color);
    color: white;
    box-shadow: 0 0 20px rgba(0, 123, 255, 0.5);
    transform: translateY(-2px);
}
.btn:active { transform: translateY(0) scale(0.98); }
.btn-secondary {
    border-color: var(--border-color);
    color: var(--text-dim);
}
.btn-secondary:hover {
    background: var(--border-color);
    color: var(--text-color);
    box-shadow: none;
}
.btn-small { padding: 10px 20px; font-size: 0.9rem; }

/* --- Inputs & Avatars --- */
.input-group { margin-bottom: 20px; }
input[type="text"] {
    width: 100%; padding: 15px; background: #0D1117;
    border: 1px solid var(--border-color); border-radius: 10px;
    color: var(--text-color); font-size: 1rem; text-align: center;
    transition: all 0.3s ease;
}
input:focus { outline: none; border-color: var(--primary-color); box-shadow: 0 0 10px rgba(0, 123, 255, 0.3); }

.avatar-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 15px; margin-bottom: 30px; }
.avatar {
    width: 60px; height: 60px; border-radius: 50%;
    display: flex; justify-content: center; align-items: center;
    font-size: 2.5rem; cursor: pointer;
    background-color: #161B22;
    transition: all 0.2s ease;
}
.avatar:hover { transform: scale(1.1); background-color: var(--primary-color); }
.avatar.selected {
    transform: scale(1.1);
    box-shadow: 0 0 15px var(--primary-color);
    background-color: var(--primary-color);
}

/* --- Main Menu --- */
.app-header { display: flex; justify-content: space-between; align-items: center; padding: 0 10px 20px; }
.profile-display { display: flex; align-items: center; gap: 10px; }
.profile-display .avatar { width: 45px; height: 45px; font-size: 1.8rem; }
#logout-btn { width: auto; padding: 8px 15px; font-size: 0.8rem; }

.wallet-info { padding: 20px; }
.balance-display { display: flex; justify-content: space-between; align-items: center; margin-bottom: 15px; }
.balance-label { color: var(--text-dim); }
.balance-amount {
    font-family: 'Orbitron', sans-serif; font-size: 1.8rem; color: var(--text-color);
}
.wallet-address { font-family: monospace; font-size: 0.9rem; color: var(--text-dim); margin-bottom: 20px; }
.wallet-actions { display: flex; gap: 10px; }

.stake-selection { border-color: var(--primary-color); }
.stake-selection .stake-buttons { display: grid; grid-template-columns: 1fr 1fr; gap: 15px; }

/* --- Game Screen --- */
.spinner { width: 50px; height: 50px; border: 5px solid var(--border-color); border-top-color: var(--primary-color); border-radius: 50%; animation: spin 1s linear infinite; margin: 20px auto; }
@keyframes spin { to { transform: rotate(360deg); } }

.game-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 20px; }
.player-info { text-align: center; }
.player-info .avatar { margin: 0 auto 10px; }
.vs-text { font-family: 'Orbitron', sans-serif; font-size: 2.5rem; color: var(--text-dim); }
.pot-display { text-align: center; font-family: 'Orbitron', sans-serif; font-size: 2rem; margin-bottom: 40px; color: var(--text-color); }

.choice-buttons { display: flex; gap: 20px; }
.choice-btn {
    font-size: 1.5rem;
    padding: 30px;
    width: 50%;
    height: 150px;
    border-radius: 16px;
    border: 1px solid var(--border-color);
    background: var(--card-bg);
    color: var(--text-color);
    position: relative;
    z-index: 1;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

/* NEW: Hype/Glow effect on hover */
.choice-btn::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    border-radius: 16px;
    z-index: -1;
    opacity: 0;
    transition: opacity 0.3s ease;
}
.choice-btn.split-btn:hover::before {
    background: radial-gradient(circle, rgba(35, 134, 54, 0.5) 0%, transparent 70%);
    opacity: 1;
}
.choice-btn.steal-btn:hover::before {
    background: radial-gradient(circle, rgba(218, 54, 51, 0.5) 0%, transparent 70%);
    opacity: 1;
}
.choice-btn.selected {
    transform: translateY(-5px);
}
.choice-btn.split-btn.selected { border-color: var(--success-color); box-shadow: 0 0 20px var(--success-color); }
.choice-btn.steal-btn.selected { border-color: var(--danger-color); box-shadow: 0 0 20px var(--danger-color); }

/* --- Result Screen --- */
.result-card { background: var(--card-bg); border: 1px solid var(--border-color); border-radius: 16px; padding: 30px 40px; text-align: center; animation: resultFadeIn 0.8s forwards; }
@keyframes resultFadeIn { from { opacity: 0; transform: scale(0.95); } to { opacity: 1; transform: scale(1); } }

.reveal-area { display: flex; justify-content: center; gap: 30px; margin-bottom: 30px; perspective: 1000px; }
.choice-reveal { width: 100px; height: 100px; display: flex; justify-content: center; align-items: center; border-radius: 15px; font-size: 3rem; transform-style: preserve-3d; position: relative; }
.choice-reveal::before { content: '?'; position: absolute; width: 100%; height: 100%; display: flex; justify-content: center; align-items: center; background: #30363d; border-radius: 15px; backface-visibility: hidden; }
.choice-reveal::after { content: attr(data-choice); position: absolute; width: 100%; height: 100%; display: flex; justify-content: center; align-items: center; border-radius: 15px; backface-visibility: hidden; transform: rotateY(180deg); }
.choice-reveal.split::after { background-color: var(--success-color); color: white; content: '🤝'; }
.choice-reveal.steal::after { background-color: var(--danger-color); color: white; content: '💀'; }
.player-reveal { animation: reveal 1.5s cubic-bezier(.5,-0.65,.5,1.55) forwards; animation-delay: 0.5s; }
.opponent-reveal { animation: reveal 1.5s cubic-bezier(.5,-0.65,.5,1.55) forwards; animation-delay: 1.5s; }
@keyframes reveal { 0% { transform: scale(0.8) rotateY(0deg); } 40% { transform: scale(1.1) rotateY(0deg); } 60% { transform: scale(1.1) rotateY(180deg); } 100% { transform: scale(1) rotateY(180deg); } }

#result-title { font-size: 2rem; margin-bottom: 10px; opacity: 0; animation: resultTextEnter 0.5s 2.5s forwards; }
#result-message { font-size: 1.1rem; color: var(--text-dim); margin-bottom: 30px; opacity: 0; animation: resultTextEnter 0.5s 2.7s forwards; }
#play-again-btn { opacity: 0; animation: resultTextEnter 0.5s 2.9s forwards; }
@keyframes resultTextEnter { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }