@import url('https://fonts.googleapis.com/css2?family=Fredoka+One&family=Quicksand:wght@500;700&display=swap');

:root {
    --bg-primary: #FFEDD5;
    --card-bg: #FFFFFF;
    --primary-color: #FF6B6B;
    --secondary-color: #4D96FF;
    --success-color: #6BCB77;
    --accent-color: #FFD93D;
    --text-main: #2C3E50;
}

body {
    font-family: 'Quicksand', 'Comic Sans MS', sans-serif;
    background-color: var(--bg-primary);
    background-image: radial-gradient(#FFD93D 15%, transparent 15%), radial-gradient(#4D96FF 15%, transparent 15%);
    background-size: 60px 60px;
    background-position: 0 0, 30px 30px;
    color: var(--text-main);
    margin: 0;
    padding: 0;
}

.container {
    max-width: 800px;
    margin: 2rem auto;
    padding: 1.5rem;
}

header {
    text-align: center;
    margin-bottom: 2rem;
}

h1 {
    font-family: 'Fredoka One', cursive;
    color: var(--primary-color);
    font-size: 3rem;
    text-shadow: 3px 3px 0px #FFF, 5px 5px 0px var(--text-main);
    margin-bottom: 10px;
}

h2 {
    font-family: 'Fredoka One', cursive;
    color: var(--secondary-color);
}

.card {
    background: var(--card-bg);
    border: 6px solid var(--text-main);
    border-radius: 30px;
    padding: 2.5rem;
    box-shadow: 8px 8px 0px var(--text-main);
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; height: 12px;
    background: linear-gradient(90deg, #FF6B6B, #FFD93D, #6BCB77, #4D96FF);
}

.btn {
    font-family: 'Fredoka One', cursive;
    font-size: 1.3rem;
    padding: 12px 30px;
    border: 4px solid var(--text-main);
    border-radius: 20px;
    cursor: pointer;
    transition: transform 0.1s ease;
    text-decoration: none;
    display: inline-block;
    box-shadow: 4px 4px 0px var(--text-main);
}

.btn:active {
    transform: translate(3px, 3px);
    box-shadow: 1px 1px 0px var(--text-main);
}

.btn-primary { background-color: var(--accent-color); color: var(--text-main); }
.btn-secondary { background-color: var(--secondary-color); color: white; }
.btn-danger { background-color: var(--primary-color); color: white; font-size: 0.9rem; padding: 6px 12px; border-radius: 10px;}

.subject-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.subject-card {
    border: 5px solid var(--text-main);
    border-radius: 25px;
    padding: 2rem;
    text-align: center;
    cursor: pointer;
    font-family: 'Fredoka One', cursive;
    font-size: 1.8rem;
    transition: transform 0.2s;
    box-shadow: 6px 6px 0px var(--text-main);
    color: white;
}

.subject-card:hover { transform: scale(1.05) rotate(-2deg); }
.math-card { background-color: #4D96FF; }
.english-card { background-color: #FF6B6B; }
.chinese-card { background-color: #6BCB77; }

.question-text {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 2rem;
    line-height: 1.5;
}

.options-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.option-btn {
    background: #FFF;
    border: 4px solid var(--text-main);
    border-radius: 18px;
    padding: 15px;
    font-size: 1.4rem;
    font-weight: 700;
    cursor: pointer;
    box-shadow: 4px 4px 0px var(--text-main);
    text-align: center;
}

.option-btn:hover { background-color: #FFF9E6; }
.option-btn.selected { background-color: var(--accent-color); transform: translate(2px, 2px); box-shadow: 2px 2px 0px var(--text-main); }

.input-blank {
    border: 4px dashed var(--secondary-color);
    border-radius: 15px;
    padding: 10px 20px;
    font-size: 1.6rem;
    width: 60%;
    text-align: center;
    font-family: 'Fredoka One', cursive;
}

.drag-zone {
    display: flex;
    gap: 1rem;
    margin-top: 1.5rem;
    justify-content: center;
}

.draggable {
    background: var(--accent-color);
    border: 3px solid var(--text-main);
    padding: 10px 20px;
    border-radius: 12px;
    cursor: grab;
    font-weight: 700;
    box-shadow: 3px 3px 0px var(--text-main);
}

.drop-target {
    border: 4px dashed var(--text-main);
    background: #FAFAFA;
    min-width: 150px;
    min-height: 50px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 15px;
    padding: 5px;
    font-weight: 700;
}

.progress-bar-container {
    background: #E0E0E0;
    border: 3px solid var(--text-main);
    border-radius: 10px;
    height: 20px;
    margin-bottom: 1.5rem;
    overflow: hidden;
}

.progress-bar-fill {
    background: var(--success-color);
    height: 100%;
    width: 0%;
    transition: width 0.3s ease;
}

/* Form Styles */
.form-group {
    margin-bottom: 1.2rem;
}
.form-group label {
    display: block;
    font-weight: 700;
    margin-bottom: 0.5rem;
}
.form-group input, .form-group select, .form-group textarea {
    width: 100%;
    padding: 10px;
    border: 3px solid var(--text-main);
    border-radius: 12px;
    font-size: 1rem;
    box-sizing: border-box;
}

.bot-protection {
    background: #FFF9E6;
    border: 3px dashed var(--accent-color);
    padding: 15px;
    border-radius: 15px;
    margin: 1.5rem 0;
}

/* Tables */
.report-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 1.5rem;
}
.report-table th, .report-table td {
    border: 3px solid var(--text-main);
    padding: 12px;
    text-align: left;
}
.report-table th { background-color: var(--secondary-color); color: white; }
.report-table tr:nth-child(even) { background-color: #F8F9FA; }