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

:root {
    --primary-color: #810d5e;
    --secondary-color: #eb09ba;
    --success-color: #16a34a;
    --danger-color: #dc2626;
    --warning-color: #ea580c;
    --light-bg: #f8fafc;
    --border-color: #e2e8f0;
    --text-color: #1e293b;
    --border-radius: 8px;
    --box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    background-color: var(--light-bg);
    color: var(--text-color);
    line-height: 1.6;
}

.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 20px;
}

.login-box {
    background: white;
    border-radius: var(--border-radius);
    padding: 40px;
    box-shadow: var(--box-shadow);
    max-width: 400px;
    margin: 50px auto;
}

.logo {
    text-align: center;
    margin-bottom: 30px;
}

.logo h1 {
    font-size: 28px;
    color: var(--primary-color);
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--text-color);
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: 16px;
    transition: border-color 0.3s;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.btn-primary,
.btn-secondary {
    padding: 12px 24px;
    border: none;
    border-radius: var(--border-radius);
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
}

.btn-primary {
    background-color: var(--primary-color);
    color: white;
    width: 100%;
}

.btn-primary:hover {
    background-color: #1d4ed8;
    box-shadow: 0 4px 6px rgba(37, 99, 235, 0.3);
}

.btn-secondary {
    background-color: var(--secondary-color);
    color: white;
    margin-top: 10px;
}

.btn-secondary:hover {
    background-color: #475569;
}

.error-message {
    background-color: #fee2e2;
    color: var(--danger-color);
    padding: 12px;
    border-radius: var(--border-radius);
    margin-top: 20px;
    border-left: 4px solid var(--danger-color);
}

.exam-card {
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.exam-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(0,0,0,0.15);
}

.exam-wrapper {
    background: white;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--box-shadow);
}

#exam-title {
    font-size: 28px;
    margin-bottom: 5px;
    text-align: center;
}

.timer-section {
    width: 100%;
    height: 20px;
    position: relative;
}

#timer-bar {
    width: 100%;
    height: 100%;
    background: #810d5ea6;
    transition: width 1s linear;
    border-radius: 10px;
}

#timer-text {
    text-align: right;
}

.exam-content {
    padding: 30px;
    min-height: 400px;
}

.question {
    margin-bottom: 30px;
    padding: 20px;
    background-color: var(--light-bg);
    border-radius: var(--border-radius);
    border-left: 4px solid var(--primary-color);
}

.question-text {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 15px;
    color: var(--text-color);
}

.options {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.option {
    display: flex;
    align-items: center;
    padding: 12px;
    background: white;
    border-radius: var(--border-radius);
    border: 2px solid var(--border-color);
    cursor: pointer;
    transition: all 0.3s;
}

.option:hover {
    border-color: var(--primary-color);
    background-color: rgba(37, 99, 235, 0.05);
}

.option input[type="radio"] {
    margin-right: 12px;
    cursor: pointer;
}