:root {
            --bg-primary: #050a08;
            --bg-secondary: #0a1f1a;
            --text-primary: #ffffff;
            --text-secondary: rgba(255, 255, 255, 0.7);
            --text-tertiary: rgba(255, 255, 255, 0.4);
            --accent-color: #4ade80;
            --accent-bg: rgba(74, 222, 128, 0.05);
            --accent-border: rgba(74, 222, 128, 0.3);
            --hr-color: rgba(74, 222, 128, 0.1);
            --card-bg: rgba(10, 25, 20, 0.98);
            --nav-bg: rgba(10, 25, 20, 0.9);
            --ad-bg: rgba(10, 25, 20, 0.85);
            --nav-item-inactive: rgba(255, 255, 255, 0.35);
            --close-icon: rgba(255, 255, 255, 0.4);
        }

        [data-theme="light"] {
            --bg-primary: #ffffff;
            --bg-secondary: #ffffff;
            --text-primary: #111824;
            --text-secondary: #374151;
            --text-tertiary: #6b7280;
            --accent-color: #10b981;
            --accent-bg: #ecfdf5;
            --accent-border: #a7f3d0;
            --hr-color: #e5e7eb;
            --card-bg: #ffffff;
            --nav-bg: #ffffff;
            --ad-bg: #fafafa;
            --nav-item-inactive: #6b7280;
            --close-icon: #6b7280;
        }

        html, body {
            height: 100%;
            margin: 0;
            background-color: var(--bg-primary);
            font-family: 'Work Sans', sans-serif;
            color: var(--text-primary);
            transition: background-color 0.3s, color 0.3s;
        }

        .jumbotron-single {
            background: radial-gradient(circle at center, var(--bg-secondary) 0%, var(--bg-primary) 100%);
            min-height: 100vh;
            margin-bottom: 0 !important;
            padding-top: 40px;
            padding-bottom: 200px !important;
            position: relative;
        }

        [data-theme="light"] .jumbotron-single {
            background: #ffffff !important;
        }

        .section-title {
            color: var(--accent-color);
            font-size: 14px;
            letter-spacing: 3px;
            text-transform: uppercase;
            margin-bottom: 30px;
            font-weight: 700;
        }

        .dua-filter-container {
            margin-bottom: 30px;
            display: flex;
            justify-content: center;
        }

        .dua-select {
            background: var(--card-bg);
            color: var(--text-primary);
            border: 1px solid var(--accent-border);
            border-radius: 15px;
            padding: 10px 40px 10px 20px;
            font-size: 14px;
            outline: none;
            cursor: pointer;
            width: 90%;
            max-width: 350px;
            appearance: none;
            -webkit-appearance: none;
            transition: all 0.3s ease;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%234ade80'%3E%3Cpath d='M7 10l5 5 5-5z'/%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 15px center;
            background-size: 20px;
        }

        [data-theme="light"] .dua-select {
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%2310b981'%3E%3Cpath d='M7 10l5 5 5-5z'/%3E%3C/svg%3E");
        }

        .dua-card {
            background: var(--card-bg);
            border: 1px solid var(--card-border);
            border-radius: 25px;
            padding: 25px;
            margin-bottom: 25px;
            text-align: center;
            transition: all 0.3s ease;
            position: relative;
            backdrop-filter: blur(15px);
            -webkit-backdrop-filter: blur(15px);
        }

        .dua-card.bookmarked {
            border-color: var(--accent-color);
            box-shadow: 0 0 15px rgba(74, 222, 128, 0.2);
        }

        .bookmark-btn {
            position: absolute;
            top: 20px;
            right: 20px;
            color: var(--nav-item-inactive);
            cursor: pointer;
            font-size: 18px;
            transition: color 0.3s;
        }

        .play-btn {
            position: absolute;
            top: 20px;
            left: 20px;
            color: var(--accent-color);
            cursor: pointer;
            font-size: 18px;
            transition: opacity 0.3s;
        }
        
        .play-btn.loading {
            opacity: 0.5;
            pointer-events: none;
        }

        .bookmark-btn.active {
            color: var(--accent-color);
        }

        .ayah-number {
            font-size: 12px;
            color: var(--accent-color);
            margin-bottom: 10px;
            display: block;
            font-weight: bold;
        }

        .dua-arabic {
            font-size: 28px;
            line-height: 2.2;
            margin-bottom: 20px;
            font-family: 'Lato', sans-serif;
            color: var(--text-primary);
            direction: rtl;
        }

        .dua-transliteration {
            font-size: 14px;
            color: var(--transliteration-color);
            font-style: italic;
            margin-bottom: 5px;
            line-height: 1.6;
        }

        #loading-spinner {
            display: none;
            color: var(--accent-color);
            margin: 20px 0;
            text-align: center;
            width: 100%;
        }

        .bottom-ad-banner {
            position: fixed;
            bottom: 95px; 
            left: 0;
            right: 0;
            margin-left: auto;
            margin-right: auto;
            width: 90%;
            max-width: 400px;
            background: var(--ad-bg);
            border: 1px solid var(--accent-border);
            border-radius: 15px;
            padding: 10px 15px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            z-index: 999;
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
        }
        .ad-content-wrapper {
            display: flex;
            align-items: center;
            text-decoration: none !important;
            flex-grow: 1;
            justify-content: center;
        }
        .bottom-ad-banner img {
            height: 20px;
            border-radius: 4px;
            margin-right: 12px;
        }
        .bottom-ad-banner span {
            font-size: 11px;
            color: var(--accent-color);
            font-weight: 600;
        }
        .close-ad-icon {
            color: var(--close-icon);
            font-size: 16px;
            cursor: pointer;
            padding-left: 10px;
            transition: 0.3s;
        }
        .close-ad-icon:hover { color: #ff4d4d; }
.bottom-nav {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    width: 90%;
    max-width: 400px;
    background: var(--nav-bg);
    backdrop-filter: blur(10px);
    display: flex;
    justify-content: space-around;
    padding: 12px 5px;
    border-radius: 30px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    border: 1px solid var(--accent-border);
}

.nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-decoration: none !important;
    color: var(--nav-item-inactive);
    transition: 0.3s;
    flex: 1;
}

.nav-item i { 
    font-size: 18px; 
    margin-bottom: 4px; 
}

.nav-item span { 
    font-size: 8px; 
    font-weight: 600; 
    letter-spacing: 1px; 
    text-transform: uppercase; 
}

.nav-item.active { 
    color: var(--accent-color); 
}

.nav-item.active i { 
    text-shadow: 0 0 10px rgba(74, 222, 128, 0.4); 
}

        .theme-toggle {
            position: fixed; top: 15px; right: 15px; z-index: 1001;
            background: var(--card-bg); border: 1px solid var(--accent-border);
            border-radius: 50%; width: 36px; height: 36px;
            display: flex; align-items: center; justify-content: center;
            cursor: pointer; box-shadow: 0 2px 6px rgba(0,0,0,0.1);
            transition: all 0.25s ease;
        }
        .theme-toggle i { font-size: 16px; color: var(--accent-color); }
        .nav-icon, img, a {
    -webkit-user-drag: none;  /* Specifically prevents dragging the element */
    user-drag: none;
    -webkit-tap-highlight-color: transparent; /* Removes the blue box when clicking */
}