/* Custom Global Resets & Theme Colors (Light Mode) */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
}

body {
    background-color: #f8fafc; /* Crisp, clean soft-light background */
    color: #1e293b; /* Premium slate dark text */
    min-height: 100vh;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 3rem 2rem;
}

/* Nav Bar */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.2rem 3rem;
    background-color: #ffffff;
    border-bottom: 1px solid #e2e8f0;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: #0f172a;
    cursor: pointer;
}

.logo span {
    color: #2563eb;
}

.badge {
    background-color: #eff6ff;
    border: 1px solid #bfdbfe;
    color: #2563eb;
    padding: 0.3rem 0.8rem;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 600;
}

/* Hero Content headers */
.hero-section {
    margin-bottom: 3rem;
}

.hero-section h1 {
    font-size: 2.8rem;
    font-weight: 700;
    color: #0f172a;
    margin-bottom: 0.5rem;
}

.hero-section p {
    color: #64748b;
    font-size: 1.1rem;
}

/* Layer Display Management */
.view-layer {
    animation: fadeIn 0.3s ease-in-out;
}

.hidden {
    display: none !important;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Breadcrumb Navigation Buttons */
.navigation-crumbs {
    margin-bottom: 1.5rem;
}

.btn-back {
    background-color: #ffffff;
    color: #64748b;
    border: 1px solid #cbd5e1;
    padding: 0.6rem 1.2rem;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 500;
    transition: all 0.2s;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}

.btn-back:hover {
    color: #ffffff;
    background-color: #2563eb;
    border-color: #2563eb;
}

/* LAYER 1: Big Grid Subject Buttons */
.subject-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}

.subject-card-btn {
    padding: 2.5rem 1.5rem;
    font-size: 1.4rem;
    font-weight: 700;
    color: #0f172a;
    text-align: left;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    background-color: #ffffff;
    border: 1px solid #e2e8f0;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
}

.subject-card-btn:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.08);
    border-color: #cbd5e1;
}

/* Custom left borders matching your dynamic subject styling */
.btn-science { border-left: 5px solid #10b981; }
.btn-sst { border-left: 5px solid #f59e0b; }
.btn-maths { border-left: 5px solid #3b82f6; }
.btn-sanskrit { border-left: 5px solid #8b5cf6; }
.btn-hindi { border-left: 5px solid #ec4899; }
.btn-english { border-left: 5px solid #14b8a6; }

/* LAYER 2: Chapter Buttons Layout */
.chapters-buttons-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1rem;
}

.chapter-select-btn {
    background-color: #ffffff;
    border: 1px solid #e2e8f0;
    color: #1e293b;
    padding: 1.5rem;
    border-radius: 8px;
    text-align: left;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all 0.2s;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.02);
}


.chapter-select-btn:hover {
    background-color: #f8fafc;
    border-color: #2563eb;
    padding-left: 1.8rem;
}

.chapter-select-btn::after {
    content: "View Solutions →";
    font-size: 0.85rem;
    color: #2563eb;
    font-weight: bold;
}

/* LAYER 3: Final Q&A Boxes Stack */
.solutions-stack {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.solution-card {
    background-color: #ffffff;
    border: 1px solid #e2e8f0;
    padding: 1.8rem;
    border-radius: 10px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.03);
}

.question-text {
    font-size: 1.1rem;
    font-weight: 700;
    color: #2563eb; /* High contrast link blue for clear viewing */
    margin-bottom: 0.8rem;
    display: flex;
    gap: 0.5rem;
}

.answer-text {
    color: #334155; /* Solid deep grey for highly readable study text */
    line-height: 1.6;
    padding-left: 1.5rem;
    border-left: 2px solid #e2e8f0;
    white-space: pre-line; /* Keeps your natural keyboard enter breaks active! */
}
.ncert-table {
    width: 100%;
    max-width: 850px;
    margin: 1.5rem auto;
    border-collapse: collapse;
    background: #ffffff;
    font-size: 1rem;
}

.ncert-table th,
.ncert-table td {
    border: 1px solid #e2e8f0;
    padding: 0.8rem 1rem;
    text-align: left;
}

.ncert-table th {
    font-weight: 700;
    background-color: #f8fafc;
}

.ncert-table td:first-child,
.ncert-table th:first-child {
    text-align: center;
    width: 90px;
}

@media (max-width: 600px) {
    .ncert-table {
        font-size: 0.85rem;
    }

    .ncert-table th,
    .ncert-table td {
        padding: 0.6rem;
    }
}
.question-image {
    max-width: 300px; /* Adjust this value to make it smaller or larger */
    width: 100%;
    height: auto;
    display: block;
    margin: 1rem auto; /* Centers the image inside the card */
}
/* Force card elements to stack vertically instead of stretching horizontally */
.solution-card {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
}

/* Ensure question text flows like normal paragraph text */
.question-text {
    display: block; /* Overrides any flex layout inside the question */
    width: 100%;
    white-space: normal;
    word-break: break-word;
    overflow-wrap: break-word;
    line-height: 1.6;
}

/* Ensure answers flow vertically as well */
.answer-text {
    display: block;
    width: 100%;
    margin-top: 0.75rem;
    white-space: normal;
    word-break: break-word;
}