/* ===== COLLAPSIBLE SYLLABUS STYLES - SAGE GARDEN THEME =====
   Warm sage and earth tone palette inspired by botanical gardens
   Designed to work with hierarchical content structure:
   - .section = main collapsible sections (## headings in markdown)
   - .subsection = nested collapsible sections (### headings in markdown)
   - .session = individual content blocks (#### headings in markdown)
*/

/* ===== COLOR PALETTE =====
   Primary: #778979 (Sage Green) - main headers and navigation
   Light: #ccdcc1 (Light Sage) - backgrounds and subtle elements
   Cream: #e3d6ab (Warm Cream) - content backgrounds
   Medium: #a9916b (Warm Taupe) - secondary text and borders
   Accent: #d78258 (Terracotta) - highlights and important elements
*/

/* ===== RESET & BASE STYLES ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: "Merriweather", "Times New Roman", serif;
    line-height: 1.68;
    color: #5a6b5c;
    background: radial-gradient(ellipse at center, #ccdcc1 0%, #778979 100%);
    min-height: 100vh;
}

/* ===== MAIN CONTAINER ===== */
.container {
    max-width: 1020px;
    margin: 0 auto;
    background: #ffffff;
    box-shadow: 0 8px 32px rgba(119, 137, 121, 0.35);
    min-height: 100vh;
    border-radius: 0 0 12px 12px;
    overflow: hidden;
}

/* ===== HEADER STYLES ===== */
header {
    background: linear-gradient(145deg, #778979 0%, #a9916b 100%);
    color: #ffffff;
    padding: 3.5rem 2.5rem;
    text-align: center;
    position: relative;
    overflow: hidden;
}

header::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(
            circle at 20% 50%,
            rgba(227, 214, 171, 0.15) 0%,
            transparent 50%
        ),
        radial-gradient(
            circle at 80% 20%,
            rgba(215, 130, 88, 0.1) 0%,
            transparent 50%
        );
    pointer-events: none;
}

h1 {
    font-size: 2.9rem;
    margin-bottom: 0.6rem;
    font-weight: 400;
    letter-spacing: 0.8px;
    text-shadow: 3px 3px 6px rgba(0, 0, 0, 0.25);
    position: relative;
    z-index: 1;
    font-family: "Playfair Display", serif;
}

.subtitle {
    font-size: 1.25rem;
    opacity: 0.92;
    font-style: italic;
    color: #e3d6ab;
    position: relative;
    z-index: 1;
    font-weight: 300;
}

/* ===== LAST UPDATED DATE AND DOWNLOAD STYLING ===== */
.last-updated-wrapper {
    background: #e3d6ab;
    padding: 0.7rem 2.5rem;
    border-bottom: 2px solid #a9916b;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.download-link {
    font-size: 0.88rem;
    font-weight: normal;
    margin: 0;
    padding: 0;
}

.pdf-download {
    color: #778979 !important;
    text-decoration: none;
    font-weight: 500;
    font-style: italic;
    opacity: 0.8;
    transition: all 0.3s ease;
    border-bottom: 1px solid transparent;
    font-family: "Merriweather", serif;
}

.pdf-download:hover {
    color: #d78258 !important;
    border-bottom-color: #d78258;
    opacity: 1;
    text-shadow: 0 0 2px rgba(215, 130, 88, 0.4);
}

.last-updated {
    font-size: 0.88rem;
    font-style: italic;
    color: #a9916b;
    text-align: right;
    opacity: 0.7;
    font-family: "Merriweather", serif;
    font-weight: 300;
    margin: 0;
    padding: 0;
}

/* Responsive behavior */
@media (max-width: 768px) {
    .last-updated-wrapper {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
        padding: 0.7rem 1.5rem;
    }

    .last-updated {
        text-align: left;
    }
}

/* ===== CONTENT WRAPPER ===== */
.content {
    padding: 2.8rem;
    background: linear-gradient(to bottom, #ffffff 0%, #fefefe 100%);
}

/* ===== MAIN COLLAPSIBLE SECTIONS (## headings) ===== */
.section {
    margin-bottom: 2.2rem;
    border: 2px solid #ccdcc1;
    border-radius: 16px;
    overflow: hidden;
    background: #ffffff;
    box-shadow: 0 6px 16px rgba(119, 137, 121, 0.12);
    transition: all 0.3s ease;
}

.section:hover {
    box-shadow: 0 8px 24px rgba(119, 137, 121, 0.18);
    transform: translateY(-2px);
}

/* Section headers - clickable to expand/collapse */
.section-header {
    background: linear-gradient(135deg, #ccdcc1 0%, #a9916b 100%);
    color: #5a6b5c;
    padding: 1.8rem 2.2rem;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 1.45rem;
    font-weight: 600;
    transition: all 0.3s ease;
    text-shadow: 1px 1px 2px rgba(255, 255, 255, 0.3);
    border-bottom: 1px solid rgba(169, 145, 107, 0.3);
}

.section-header:hover {
    background: linear-gradient(135deg, #778979 0%, #d78258 100%);
    color: #ffffff;
    text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.3);
    transform: translateY(-1px);
}

.section-header.active {
    background: linear-gradient(135deg, #778979 0%, #a9916b 100%);
    color: #ffffff;
    border-bottom: 3px solid #d78258;
    text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.2);
}

/* Toggle icon (▼/▲) in section headers */
.toggle-icon {
    font-size: 1.4rem;
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.2);
}

.section-header.active .toggle-icon {
    transform: rotate(180deg);
}

/* Collapsible content area for sections */
.section-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    background: #ffffff;
}

/* When active class is added, content expands */
.section-content.active {
    transition: max-height 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.section-inner {
    padding: 2.2rem;
    background: linear-gradient(
        to bottom,
        #ffffff 0%,
        #fefefe 50%,
        #e3d6ab 100%
    );
}

/* ===== NESTED COLLAPSIBLE SUBSECTIONS (### headings) ===== */
.subsection {
    margin-bottom: 1.8rem;
    border-left: 5px solid #a9916b;
    border-radius: 12px;
    overflow: hidden;
    background: #e3d6ab;
    box-shadow: 0 3px 8px rgba(169, 145, 107, 0.15);
    transition: all 0.3s ease;
}

.subsection:hover {
    box-shadow: 0 5px 12px rgba(169, 145, 107, 0.25);
    border-left-color: #d78258;
}

/* Subsection headers - lighter styling than main sections */
.subsection-header {
    background: linear-gradient(135deg, #e3d6ab 0%, #ccdcc1 100%);
    color: #5a6b5c;
    padding: 1.2rem 1.8rem;
    cursor: pointer;
    font-size: 1.25rem;
    font-weight: 500;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all 0.3s ease;
    border-bottom: 1px solid rgba(169, 145, 107, 0.2);
}

.subsection-header:hover {
    background: linear-gradient(135deg, #a9916b 0%, #778979 100%);
    color: #ffffff;
    transform: translateX(8px);
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.2);
}

.subsection-header.active {
    background: linear-gradient(135deg, #778979 0%, #d78258 100%);
    color: #ffffff;
    border-bottom: 2px solid #d78258;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.2);
}

/* Collapsible content for subsections */
.subsection-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.subsection-content.active {
    transition: max-height 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.subsection-inner {
    padding: 1.8rem;
    background: #ffffff;
    border-left: 4px solid #ccdcc1;
    margin-left: 1.2rem;
    border-radius: 0 8px 8px 0;
}

/* ===== SUB-SUBSECTION STYLES (#### headings) ===== */
.subsubsection {
    margin-bottom: 1.2rem;
    border-left: 4px solid #ccdcc1;
    border-radius: 8px;
    overflow: hidden;
    margin-left: 1.2rem;
    background: #fefefe;
    box-shadow: 0 2px 4px rgba(204, 220, 193, 0.2);
}

/* Sub-subsection headers - even lighter styling */
.subsubsection-header {
    background: linear-gradient(135deg, #fefefe 0%, #e3d6ab 100%);
    color: #5a6b5c;
    padding: 1rem 1.5rem;
    cursor: pointer;
    font-size: 1.1rem;
    font-weight: 500;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all 0.3s ease;
    border-bottom: 1px solid rgba(204, 220, 193, 0.4);
}

.subsubsection-header:hover {
    background: linear-gradient(135deg, #ccdcc1 0%, #a9916b 100%);
    color: #ffffff;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.2);
}

.subsubsection-header.active {
    background: linear-gradient(135deg, #a9916b 0%, #778979 100%);
    color: #ffffff;
    border-bottom: 2px solid #d78258;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.2);
}

/* Collapsible content for sub-subsections */
.subsubsection-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.subsubsection-content.active {
    transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.subsubsection-inner {
    padding: 1.4rem;
    background: #ffffff;
    border-left: 3px solid #ccdcc1;
    margin-left: 0.8rem;
    border-radius: 0 6px 6px 0;
}

/* ===== CONTENT BLOCKS (##### headings) ===== */
.session {
    margin-bottom: 1.4rem;
    padding: 1.4rem;
    background: #ffffff;
    border: 1px solid #ccdcc1;
    border-left: 5px solid #d78258;
    border-radius: 10px;
    box-shadow: 0 3px 6px rgba(215, 130, 88, 0.12);
    transition: all 0.3s ease;
}

.session:hover {
    border-left-color: #778979;
    box-shadow: 0 5px 12px rgba(119, 137, 121, 0.18);
    transform: translateX(5px);
    background: linear-gradient(135deg, #ffffff 0%, #fefefe 100%);
}

.session h4,
.session h5 {
    color: #778979;
    margin-bottom: 0.8rem;
    font-size: 1.25rem;
    font-weight: 600;
    font-family: "Playfair Display", serif;
}

.session-type {
    font-weight: bold;
    color: #d78258;
    margin-bottom: 0.6rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-size: 0.92rem;
    font-family: "Lato", sans-serif;
}

/* ===== SPECIALIZED CONTENT STYLES ===== */
.core-questions {
    background: linear-gradient(135deg, #e3d6ab 0%, #ccdcc1 100%);
    padding: 1.8rem;
    border-radius: 12px;
    margin-bottom: 1.2rem;
    border-left: 6px solid #778979;
    border-top: 2px solid #a9916b;
    border-right: 2px solid #a9916b;
    border-bottom: 2px solid #a9916b;
    box-shadow: 0 4px 8px rgba(119, 137, 121, 0.15);
}

.core-questions h4 {
    color: #778979;
    margin-bottom: 1rem;
    font-size: 1.2rem;
    font-family: "Playfair Display", serif;
}

.deadlines {
    background: linear-gradient(135deg, #fff8f0 0%, #ffecd1 100%);
    border: 2px solid #d78258;
    border-radius: 12px;
    padding: 1.8rem;
    margin-bottom: 1.2rem;
    position: relative;
    box-shadow: 0 4px 8px rgba(215, 130, 88, 0.2);
}

.deadlines::before {
    content: "📅";
    position: absolute;
    top: 12px;
    right: 18px;
    font-size: 1.4rem;
    opacity: 0.7;
}

.deadlines h4 {
    color: #d78258;
    margin-bottom: 1rem;
    font-size: 1.3rem;
    font-weight: 600;
    font-family: "Playfair Display", serif;
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.8rem;
    margin-bottom: 2.2rem;
}

.info-card {
    background: linear-gradient(135deg, #e3d6ab 0%, #ccdcc1 100%);
    padding: 1.8rem;
    border-radius: 14px;
    border-left: 6px solid #778979;
    border-top: 1px solid #a9916b;
    border-right: 1px solid #a9916b;
    border-bottom: 1px solid #a9916b;
    box-shadow: 0 4px 12px rgba(119, 137, 121, 0.15);
    transition: all 0.3s ease;
}

.info-card:hover {
    border-left-color: #d78258;
    box-shadow: 0 6px 18px rgba(215, 130, 88, 0.25);
    transform: translateY(-3px);
    background: linear-gradient(135deg, #ccdcc1 0%, #e3d6ab 100%);
}

.info-card h4 {
    color: #778979;
    margin-bottom: 1rem;
    font-size: 1.2rem;
    font-family: "Playfair Display", serif;
    font-weight: 600;
}

.grade-distribution {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 1rem;
    margin-top: 1.2rem;
}

.grade-item {
    background: linear-gradient(135deg, #778979 0%, #a9916b 100%);
    color: white;
    padding: 1rem;
    text-align: center;
    border-radius: 10px;
    font-weight: 600;
    border: 2px solid #d78258;
    transition: all 0.3s ease;
    box-shadow: 0 3px 6px rgba(119, 137, 121, 0.2);
}

.grade-item:hover {
    background: linear-gradient(135deg, #d78258 0%, #a9916b 100%);
    transform: scale(1.08);
    box-shadow: 0 6px 12px rgba(215, 130, 88, 0.3);
}

/* ===== LIST STYLING ===== */
/* Reading lists with specific class */
.reading-list {
    margin-top: 1.2rem;
    background: linear-gradient(135deg, #e3d6ab 0%, #f5f5f5 100%);
    padding: 1.2rem;
    border-radius: 8px;
    border-left: 4px solid #a9916b;
    box-shadow: 0 2px 4px rgba(169, 145, 107, 0.1);
}

.reading-list ul {
    margin-left: 1.8rem;
}

.reading-list li {
    margin-bottom: 0.6rem;
    color: #5a6b5c;
}

.reading-list li::marker {
    color: #d78258;
}

/* General lists in subsection content */
.subsection-inner ul,
.subsubsection-inner ul {
    margin-left: 1.8rem;
    margin-top: 1rem;
    margin-bottom: 1rem;
}

.subsection-inner li,
.subsubsection-inner li {
    margin-bottom: 0.5rem;
    color: #5a6b5c;
}

.subsection-inner li::marker,
.subsubsection-inner li::marker {
    color: #778979;
}

.subsection-inner ol,
.subsubsection-inner ol {
    margin-left: 1.8rem;
    margin-top: 1rem;
    margin-bottom: 1rem;
}

.subsection-inner ol li,
.subsubsection-inner ol li {
    margin-bottom: 0.5rem;
}

/* ===== LINKS ===== */
a {
    color: #778979;
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: all 0.3s ease;
    position: relative;
}

a:hover {
    color: #d78258;
    border-bottom-color: #d78258;
    text-shadow: 0 0 2px rgba(215, 130, 88, 0.4);
}

a:visited {
    color: #a9916b;
}

/* ===== NOTES AND MISC ===== */
.note {
    font-style: italic;
    color: #a9916b;
    margin-top: 1.8rem;
    padding: 1.2rem;
    background: linear-gradient(135deg, #e3d6ab 0%, #ccdcc1 100%);
    border-radius: 8px;
    border-left: 5px solid #778979;
    border-top: 1px solid #a9916b;
    border-right: 1px solid #a9916b;
    border-bottom: 1px solid #a9916b;
    box-shadow: 0 2px 4px rgba(119, 137, 121, 0.1);
}

/* ===== TEXT STYLING ===== */
strong,
b {
    color: #778979;
    font-weight: 700;
}

em,
i {
    color: #a9916b;
    font-style: italic;
}

/* ===== PARAGRAPH SPACING ===== */
p {
    margin-bottom: 1.2rem;
}

p + p {
    margin-top: 0.6rem;
}

/* Spacing within content areas */
.section-inner p,
.subsection-inner p,
.subsubsection-inner p,
.session p {
    margin-bottom: 1.2rem;
    line-height: 1.75;
}

/* Extra spacing for paragraphs after headings */
h1 + p,
h2 + p,
h3 + p,
h4 + p,
h5 + p,
h6 + p {
    margin-top: 1rem;
}

/* Spacing between different content blocks */
p + ul,
p + ol,
ul + p,
ol + p {
    margin-top: 1rem;
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 768px) {
    .container {
        margin: 0;
        box-shadow: none;
        border-radius: 0;
    }

    header {
        padding: 2.5rem 1.5rem;
    }

    h1 {
        font-size: 2.4rem;
    }

    .last-updated-wrapper {
        padding: 0.7rem 1.5rem;
    }

    .content {
        padding: 1.8rem;
    }

    .section-header {
        padding: 1.2rem 1.5rem;
        font-size: 1.25rem;
    }

    .subsection-header {
        padding: 1rem 1.2rem;
        font-size: 1.1rem;
    }

    .subsubsection-header {
        padding: 0.8rem 1rem;
        font-size: 1rem;
    }

    .subsubsection {
        margin-left: 0.8rem;
    }

    .subsubsection-inner {
        padding: 1.2rem;
        margin-left: 0.4rem;
    }

    .info-grid {
        grid-template-columns: 1fr;
        gap: 1.2rem;
    }

    .grade-distribution {
        grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
        gap: 0.8rem;
    }

    .grade-item {
        padding: 0.8rem;
        font-size: 0.9rem;
    }
}

/* ===== PRINT STYLES ===== */
@media print {
    body {
        background: white;
        color: black;
    }

    .container {
        box-shadow: none;
        border: none;
        border-radius: 0;
    }

    header {
        background: #778979 !important;
        -webkit-print-color-adjust: exact;
        color-adjust: exact;
    }

    .section-header,
    .subsection-header,
    .subsubsection-header {
        background: #e3d6ab !important;
        color: #5a6b5c !important;
        -webkit-print-color-adjust: exact;
        color-adjust: exact;
    }

    .section-content,
    .subsection-content,
    .subsubsection-content {
        max-height: none !important;
        overflow: visible !important;
    }

    .section-content.active,
    .subsection-content.active,
    .subsubsection-content.active {
        display: block !important;
    }
}