:root {
    --primary-accent: #10b981; /* Emerald Green */
    --secondary-accent: #34d399; /* Mint Emerald */
    --bg-dark: #020617; /* Deep Space Navy */
    --card-bg: rgba(15, 23, 42, 0.6);
    --glass-border: rgba(52, 211, 153, 0.2);
}

* {
    cursor: default;
    transition: all 0.3s ease;
}

body {
    background: var(--bg-dark);
    background-image: 
        radial-gradient(circle at 10% 10%, rgba(16, 185, 129, 0.05) 0%, transparent 40%),
        radial-gradient(circle at 90% 90%, rgba(52, 211, 153, 0.05) 0%, transparent 40%);
    color: #f8fafc;
    font-family: 'Tajawal', sans-serif;
}

.animate-fade-in {
    animation: fadeIn 0.6s ease-out forwards;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.glass-card {
    background: var(--card-bg);
    backdrop-filter: blur(15px);
    border: 1px solid var(--glass-border);
    border-radius: 30px;
}

.option-btn {
    border: 1px solid rgba(52, 211, 153, 0.1);
    background: rgba(15, 23, 42, 0.3);
}

.option-btn:hover {
    background: var(--primary-accent);
    color: white !important;
    transform: scale(1.02);
}

.game-vibe-card {
    border: 2px dashed var(--primary-accent);
    box-shadow: 0 0 20px rgba(16, 185, 129, 0.1);
}

.progress-bar-fill {
    background: linear-gradient(90deg, var(--primary-accent), var(--secondary-accent));
    box-shadow: 0 0 15px var(--primary-accent);
}

.emerald-text {
    color: var(--primary-accent);
    text-shadow: 0 0 10px rgba(16, 185, 129, 0.3);
}

/* UX Improvements */
.custom-scroll::-webkit-scrollbar {
    width: 6px;
}
.custom-scroll::-webkit-scrollbar-track {
    background: transparent;
}
.custom-scroll::-webkit-scrollbar-thumb {
    background: rgba(16, 185, 129, 0.2);
    border-radius: 10px;
}
.custom-scroll::-webkit-scrollbar-thumb:hover {
    background: var(--primary-accent);
}

.pulse-hover:hover {
    animation: pulse 1.5s infinite;
}

@keyframes pulse {
    0% { transform: scale(1); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.4); }
    70% { transform: scale(1.05); box-shadow: 0 0 0 15px rgba(16, 185, 129, 0); }
    100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}

#challenges-results {
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.whitespace-pre-wrap {
    white-space: pre-wrap;
    line-height: 1.8;
}

/* Language Specific Styles */
html[lang="en"] body {
    font-family: 'Inter', sans-serif;
}

html[lang="en"] .emerald-text {
    letter-spacing: -0.02em;
}

#lang-toggle {
    backdrop-filter: blur(20px);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

#lang-toggle:hover {
    transform: translateY(-2px) scale(1.05);
    background: rgba(16, 185, 129, 0.1);
}