@import url('https://fonts.googleapis.com/css2?family=Amiri:wght@400;700&family=Reem+Kufi:wght@400;700&display=swap');

:root {
    --primary-green: #006400; /* Emerald Green */
    --secondary-gold: #FFD700; /* Gold */
    --tertiary-cream: #F5F5DC; /* Cream */
    --midnight-blue: #191970; /* Midnight Blue */
    --glass-bg: rgba(255, 255, 255, 0.1);
    --glass-border: rgba(255, 255, 255, 0.2);
    --text-color: var(--tertiary-cream);
    --button-bg: var(--primary-green);
    --button-hover-bg: #004d00;
    --card-bg: rgba(0, 0, 0, 0.3);
    --card-border: rgba(255, 255, 255, 0.1);
}

body {
    margin: 0;
    font-family: 'Amiri', serif;
    color: var(--text-color);
    background: linear-gradient(135deg, var(--midnight-blue) 0%, var(--primary-green) 100%);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden; /* Prevent scrollbar from background animation */
    position: relative;
}

.background-animation {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100" opacity="0.1"><defs><pattern id="islamic-pattern" width="20" height="20" patternUnits="userSpaceOnUse"><path d="M 10 0 L 20 10 L 10 20 L 0 10 Z" fill="rgba(255,255,255,0.1)" stroke="none" /></pattern></defs><rect width="100" height="100" fill="url(%23islamic-pattern)"/></svg>');
    background-size: 40px 40px;
    animation: moveBackground 60s linear infinite;
    z-index: -1;
}

@keyframes moveBackground {
    from {
        background-position: 0 0;
    }
    to {
        background-position: 400px 400px;
    }
}

.screen {
    display: none;
    width: 90%;
    max-width: 800px;
    background: var(--glass-bg);
    border-radius: 15px;
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(10px);
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
    padding: 30px;
    text-align: center;
    animation: fadeIn 0.5s ease-out;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    max-height: 90vh;
    overflow-y: auto;
}

.screen.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translate(-50%, -40%) scale(0.9); }
    to { opacity: 1; transform: translate(-50%, -50%) scale(1); }
}

@keyframes fadeOut {
    from { opacity: 1; transform: translate(-50%, -50%) scale(1); }
    to { opacity: 0; transform: translate(-50%, -60%) scale(0.9); }
}

.screen.fade-out {
    animation: fadeOut 0.5s ease-out forwards;
}

.container {
    padding: 20px;
}

h1, h2, h3 {
    font-family: 'Reem Kufi', sans-serif;
    color: var(--secondary-gold);
    text-shadow: 0 0 10px rgba(255, 215, 0, 0.5);
}

p {
    font-size: 1.1em;
    line-height: 1.6;
}

button {
    background-color: var(--button-bg);
    color: var(--text-color);
    border: none;
    padding: 12px 25px;
    margin: 10px 5px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 1.1em;
    transition: background-color 0.3s ease, transform 0.2s ease;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

button:hover {
    background-color: var(--button-hover-bg);
    transform: translateY(-2px);
}

button:active {
    transform: translateY(0);
}

input[type="text"] {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid var(--glass-border);
    padding: 10px 15px;
    border-radius: 8px;
    color: var(--text-color);
    font-size: 1em;
    margin-bottom: 20px;
    width: calc(100% - 30px);
    max-width: 300px;
    box-sizing: border-box;
}

input[type="text"]::placeholder {
    color: rgba(255, 255, 255, 0.7);
}

/* Home Screen Specifics */
#home-screen h1 {
    font-size: 2.5em;
    margin-bottom: 15px;
}

#home-screen p {
    font-size: 1.2em;
    margin-bottom: 30px;
}

.home-buttons button {
    display: block;
    width: 80%;
    max-width: 300px;
    margin: 15px auto;
}

#user-dashboard-summary {
    background: rgba(0, 0, 0, 0.2);
    border-radius: 10px;
    padding: 15px;
    margin-top: 20px;
    border: 1px solid rgba(255, 215, 0, 0.3);
}

.xp-bar-container {
    width: 100%;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 5px;
    height: 10px;
    margin-top: 5px;
    overflow: hidden;
}

.xp-bar-fill {
    height: 100%;
    width: 0%;
    background: linear-gradient(to right, var(--primary-green), var(--secondary-gold));
    border-radius: 5px;
    transition: width 0.5s ease-out;
}

/* Categories Grid */
.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 20px;
    margin-top: 30px;
}

.category-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 15px;
    padding: 20px;
    cursor: pointer;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 150px;
}

.category-card:hover {
    transform: translateY(-5px) scale(1.02);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.4);
}

.category-card i {
    font-size: 3em;
    margin-bottom: 10px;
    color: var(--secondary-gold);
    text-shadow: 0 0 8px rgba(255, 215, 0, 0.7);
}

.category-card h3 {
    margin: 0;
    font-size: 1.3em;
    color: var(--text-color);
}

/* Category specific colors */
.category-card[data-category="Quran"] { background: rgba(0, 100, 0, 0.4); border-color: rgba(255, 215, 0, 0.3); }
.category-card[data-category="Prophets"] { background: rgba(25, 25, 112, 0.4); border-color: rgba(192, 192, 192, 0.3); } /* Midnight Blue / Silver */
.category-card[data-category="Salah"] { background: rgba(0, 128, 128, 0.4); border-color: rgba(255, 255, 255, 0.3); } /* Teal / White */
.category-card[data-category="Islamic History"] { background: rgba(139, 69, 19, 0.4); border-color: rgba(244, 164, 96, 0.3); } /* Brown / Sand */
.category-card[data-category="Morals & Manners"] { background: rgba(128, 0, 128, 0.4); border-color: rgba(255, 248, 220, 0.3); } /* Purple / Cream */
.category-card[data-category="General Knowledge"] { background: rgba(0, 128, 0, 0.4); border-color: rgba(255, 215, 0, 0.3); } /* Emerald / Gold */

.category-card.locked {
    opacity: 0.6;
    cursor: not-allowed;
}

.category-card.locked i {
    color: rgba(255, 255, 255, 0.5);
}

/* Sub-Category, Level, and Sub-Level Cards */
.sub-category-card,
.level-card,
.sublevel-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 15px;
    padding: 20px;
    cursor: pointer;
    transition: transform 0.3s ease, box-shadow 0.3s ease, background-color 0.3s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 120px;
    text-align: center;
}

.sub-category-card:hover,
.level-card:hover,
.sublevel-card:hover {
    transform: translateY(-5px) scale(1.02);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.4);
    background-color: rgba(255, 215, 0, 0.1); /* Subtle gold highlight on hover */
}

.sub-category-card.locked,
.level-card.locked,
.sublevel-card.locked {
    opacity: 0.4;
    cursor: not-allowed;
    background-color: rgba(0, 0, 0, 0.5);
    border-color: rgba(255, 255, 255, 0.1);
    box-shadow: none;
    transform: none;
}

.sub-category-card.locked:hover,
.level-card.locked:hover,
.sublevel-card.locked:hover {
    transform: none;
    box-shadow: none;
    background-color: rgba(0, 0, 0, 0.5);
}

.sub-category-card i,
.level-card i,
.sublevel-card i {
    font-size: 2.5em;
    margin-bottom: 10px;
    color: var(--secondary-gold);
    text-shadow: 0 0 8px rgba(255, 215, 0, 0.7);
}

.sub-category-card.locked i,
.level-card.locked i,
.sublevel-card.locked i {
    color: rgba(255, 255, 255, 0.5);
    text-shadow: none;
}

.sub-category-card h4,
.level-card h4,
.sublevel-card h4 {
    margin: 0;
    font-size: 1.1em;
    color: var(--text-color);
    margin-bottom: 5px; /* Added margin for stars */
}

.sub-category-card.locked h4,
.level-card.locked h4,
.sublevel-card.locked h4 {
    color: rgba(255, 255, 255, 0.5);
}

.level-stars {
    font-size: 1em;
    color: var(--secondary-gold);
    margin-top: 5px;
}

/* Specific styling for the grids in new screens */
#subcategories-container,
#levels-container,
#sublevels-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); /* Similar to categories-grid */
    gap: 20px;
    margin-top: 30px;
}

/* Quiz Screen */
.quiz-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.quiz-timer {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    border: 5px solid var(--secondary-gold);
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.2em;
    font-weight: bold;
    color: var(--secondary-gold);
    position: relative;
    overflow: hidden;
}

.quiz-timer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background: conic-gradient(var(--primary-green) var(--timer-progress, 0%), transparent var(--timer-progress, 0%));
    transition: background 0.1s linear;
}

.quiz-timer span {
    position: relative;
    z-index: 1;
}

.quiz-options {
    margin-top: 20px;
}

.option-btn {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid var(--glass-border);
    color: var(--text-color);
    padding: 15px;
    margin: 10px 0;
    border-radius: 8px;
    width: 100%;
    text-align: left;
    cursor: pointer;
    transition: background-color 0.3s ease, border-color 0.3s ease;
}

.option-btn:hover {
    background-color: rgba(255, 255, 255, 0.2);
    border-color: var(--secondary-gold);
}

.option-btn.correct {
    background-color: rgba(0, 128, 0, 0.5); /* Green */
    border-color: var(--secondary-gold);
}

.option-btn.incorrect {
    background-color: rgba(255, 0, 0, 0.5); /* Red */
    border-color: var(--secondary-gold);
}

.option-btn.disabled {
    pointer-events: none;
    opacity: 0.7;
}

/* Results Screen */
#results-screen h2 {
    color: var(--secondary-gold);
}

#results-screen p {
    font-size: 1.2em;
    margin-bottom: 10px;
}

.star-rating {
    margin: 15px 0;
    font-size: 1.8em;
    color: rgba(255, 255, 255, 0.3); /* Unfilled star color */
}

.star-rating .fas.fa-star.filled {
    color: var(--secondary-gold); /* Filled star color */
    text-shadow: 0 0 8px rgba(255, 215, 0, 0.7);
}

.level-up-animation {
    background: linear-gradient(45deg, var(--secondary-gold), var(--primary-green));
    padding: 20px;
    border-radius: 15px;
    margin: 20px auto;
    box-shadow: 0 0 20px var(--secondary-gold);
    animation: pulseGlow 1.5s infinite alternate;
}

@keyframes pulseGlow {
    from { box-shadow: 0 0 10px var(--secondary-gold); }
    to { box-shadow: 0 0 30px var(--secondary-gold); }
}

.badge-display {
    display: inline-block;
    margin: 10px;
    font-size: 2em;
    animation: popIn 0.5s ease-out;
}

@keyframes popIn {
    from { transform: scale(0); opacity: 0; }
    to { transform: scale(1); opacity: 1; }
}

/* Timeline Screen */
.timeline-path {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    position: relative;
    padding: 20px 0;
    margin-top: 30px;
}

.timeline-path::before {
    content: '';
    position: absolute;
    left: 20px;
    top: 0;
    bottom: 0;
    width: 4px;
    background-color: rgba(255, 255, 255, 0.3);
    border-radius: 2px;
}

.timeline-milestone {
    display: flex;
    align-items: center;
    margin-bottom: 30px;
    position: relative;
    padding-left: 60px;
}

.timeline-milestone-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--primary-green);
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.5em;
    color: var(--secondary-gold);
    position: absolute;
    left: 0;
    z-index: 1;
    border: 3px solid var(--secondary-gold);
    box-shadow: 0 0 10px rgba(255, 215, 0, 0.5);
}

.timeline-milestone.completed .timeline-milestone-icon {
    background-color: var(--secondary-gold);
    color: var(--primary-green);
}

.timeline-milestone.current .timeline-milestone-icon {
    animation: glowing 1.5s infinite alternate;
}

@keyframes glowing {
    from { box-shadow: 0 0 5px var(--secondary-gold), 0 0 10px var(--secondary-gold); }
    to { box-shadow: 0 0 15px var(--secondary-gold), 0 0 25px var(--secondary-gold); }
}

.timeline-milestone-content {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 10px;
    padding: 15px;
    text-align: left;
    width: 100%;
}

.timeline-milestone-content h4 {
    margin: 0 0 5px 0;
    color: var(--secondary-gold);
}

.timeline-milestone-content p {
    margin: 0;
    font-size: 0.9em;
}

/* Dashboard Screen */
#dashboard-screen h3 {
    margin-top: 30px;
    color: var(--secondary-gold);
}

#dashboard-achievements, #dashboard-badges {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 15px;
    margin-top: 15px;
}

.achievement-item, .badge-item {
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid rgba(255, 215, 0, 0.3);
    border-radius: 10px;
    padding: 10px 15px;
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.9em;
}

.achievement-item i, .badge-item i {
    font-size: 1.5em;
    color: var(--secondary-gold);
}

/* Settings Screen */
.warning-text {
    color: #ff6347; /* Tomato red */
    font-weight: bold;
    margin-top: 15px;
}

/* Back Button */
.back-btn {
    margin-top: 30px;
    background-color: var(--midnight-blue);
}

.back-btn:hover {
    background-color: #10104d;
}

/* Responsiveness */
@media (max-width: 768px) {
    .screen {
        width: 95%;
        padding: 20px;
    }

    h1 {
        font-size: 2em;
    }

    h2 {
        font-size: 1.5em;
    }

    .home-buttons button {
        width: 90%;
    }

    .categories-grid {
        grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    }

    .category-card {
        min-height: 120px;
        padding: 15px;
    }

    .category-card i {
        font-size: 2.5em;
    }

    #subcategories-container,
    #levels-container,
    #sublevels-container {
        grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    }

    .timeline-milestone {
        padding-left: 50px;
    }

    .timeline-path::before {
        left: 15px;
    }

    .timeline-milestone-icon {
        width: 35px;
        height: 35px;
        font-size: 1.2em;
    }
}

@media (max-width: 480px) {
    .screen {
        padding: 15px;
    }

    h1 {
        font-size: 1.8em;
    }

    h2 {
        font-size: 1.3em;
    }

    button {
        padding: 10px 20px;
        font-size: 1em;
    }

    .categories-grid {
        grid-template-columns: 1fr;
    }

    .category-card {
        min-height: 100px;
    }

    .quiz-header {
        flex-direction: column;
        gap: 10px;
    }

    .quiz-timer {
        margin-bottom: 10px;
    }
}