/* ==========================================
   LESSON.CSS — Shared styles for all lesson pages
   ========================================== */

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

/* Body */
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f7f8fa;
    color: #2c3e50;
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* ==========================================
   LAYOUT
   ========================================== */

/* These classes exist in the HTML but no longer need box styling */
.content-wrapper,
.main-container {
    flex: 1;
    min-width: 0;
}



/* Lesson Header */
.lesson-header {
    padding: 2rem 2rem 0;
}

.lesson-header h1 {
    font-size: 2.4em;
    margin-bottom: 8px;
    color: #2c3e50;
    font-weight: 700;
}

.lesson-meta {
    color: #6b7280;
    font-size: 1.05em;
}

/* Content padding */
.container {
    padding: 2rem;
}

/* Sections — no boxes, just spacing */
.section {
    padding: 0;
    margin-bottom: 2rem;
}

.section h2 {
    color: #3498db;
    font-size: 1.8rem;
    margin-bottom: 1rem;
    border-bottom: 3px solid #3498db;
    padding-bottom: 0.5rem;
}