/* ==========================================================================
   KNOWLEDGE NEST - MASTER STYLE SHEET (Pure, Clean, Minimal Swiss-Modern Aesthetic)
   ========================================================================== */

/* Font Face - Premium Outfit Font */
@font-face {
    font-family: 'Outfit';
    src: url('../font/outfit.ttf') format('truetype');
    font-weight: 100 900;
    font-style: normal;
    font-display: swap;
}

/* Design Tokens & Custom Properties */
:root {
    --primary: #f2e858;       /* Vibrant Logo Yellow */
    --primary-light: #FFF9DB; /* Muted Yellow for highlights */
    --primary-dark: #CCA900;  /* Slightly darker for hover */
    --dark: #0F0F11;          /* Pure slate dark background/text */
    --dark-light: #18181C;    /* Off-black for section card backgrounds */
    --light: #F8F9FA;         /* Soft warm gray for body */
    --white: #FFFFFF;         /* Pure white */
    
    --gray-50: #FAFAFA;
    --gray-100: #F4F4F5;
    --gray-200: #E4E4E7;
    --gray-300: #D4D4D8;
    --gray-500: #71717A;
    --gray-700: #3F3F46;
    --gray-900: #18181B;

    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Outfit', sans-serif;

    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;
    --radius-full: 9999px;

    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 12px rgba(15, 15, 17, 0.05);
    --shadow-lg: 0 12px 30px rgba(15, 15, 17, 0.08);
    --shadow-solid: 4px 4px 0px 0px #0F0F11;
    --shadow-solid-hover: 2px 2px 0px 0px #0F0F11;

    --transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
    --header-height: 80px;
    --max-width: 1200px;
    --marquee-height: 40px;
    --header-top: 0px;
}

/* Dynamic Header Flow (Marquee) */
.header-marquee {
    background-color: var(--dark);
    color: var(--white);
    height: var(--marquee-height);
    display: flex;
    align-items: center;
    overflow: hidden;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1001;
    font-size: 0.85rem;
    font-weight: 500;
}

.marquee-content {
    display: flex;
    align-items: center;
    gap: 32px;
    white-space: nowrap;
    animation: marquee 30s linear infinite;
}

@keyframes marquee {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

.marquee-item {
    display: flex;
    align-items: center;
    gap: 12px;
}

.marquee-btn {
    background-color: var(--primary);
    color: var(--dark);
    padding: 2px 12px;
    border-radius: var(--radius-full);
    text-decoration: none;
    font-weight: 700;
    font-size: 0.75rem;
    transition: var(--transition);
}

.marquee-btn:hover {
    background-color: var(--white);
}

/* Popup Poster */
.popup-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(15, 15, 17, 0.8);
    backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.popup-overlay.active {
    opacity: 1;
    visibility: visible;
}

.popup-card {
    background-color: var(--white);
    width: 90%;
    max-width: 450px;
    border-radius: var(--radius-lg);
    overflow: hidden;
    position: relative;
    box-shadow: var(--shadow-lg);
    transform: translateY(20px);
    transition: var(--transition);
}

.popup-overlay.active .popup-card {
    transform: translateY(0);
}

.popup-close {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 32px;
    height: 32px;
    background-color: rgba(255, 255, 255, 0.9);
    border: none;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 10;
    color: var(--dark);
    font-size: 1.2rem;
    box-shadow: var(--shadow-sm);
}

.popup-image-wrap {
    width: 100%;
    height: 220px;
    background-color: var(--gray-100);
}

.popup-image-wrap img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.popup-body {
    padding: 32px;
    text-align: center;
}

.popup-title {
    font-size: 1.75rem;
    margin-bottom: 12px;
}

.popup-text {
    color: var(--gray-500);
    margin-bottom: 24px;
}

.popup-btn {
    width: 100%;
}

/* CSS Resets */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.6;
    color: var(--gray-900);
    background-color: var(--white);
    overflow-x: hidden;
}

/* Headings & Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    color: var(--dark);
    font-weight: 800;
    line-height: 1.2;
}

h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    letter-spacing: -0.03em;
}

h2 {
    font-size: clamp(1.8rem, 4vw, 2.5rem);
    letter-spacing: -0.02em;
    margin-bottom: 1rem;
}

h3 {
    font-size: clamp(1.3rem, 2.5vw, 1.75rem);
    letter-spacing: -0.01em;
}

p {
    color: var(--gray-700);
    margin-bottom: 1rem;
    font-weight: 400;
}

p.lead {
    font-size: clamp(1.1rem, 1.5vw, 1.25rem);
    color: var(--gray-500);
    font-weight: 400;
    line-height: 1.6;
}

a {
    color: var(--dark);
    text-decoration: none;
    transition: var(--transition);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* Layout Utilities */
.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
    width: 100%;
}

.section {
    padding: clamp(4rem, 8vw, 7rem) 0;
}

.section-dark {
    background-color: var(--dark);
    color: var(--white);
}

.section-dark h1, .section-dark h2, .section-dark h3, .section-dark h4 {
    color: var(--white);
}

.section-dark p {
    color: var(--gray-300);
}

.grid-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
    align-items: center;
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.grid-4 {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

/* Shared Header Navigation */
.header {
    height: var(--header-height);
    background-color: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    position: fixed;
    top: var(--header-top);
    left: 0;
    right: 0;
    z-index: 1000;
    border-bottom: 1px solid var(--gray-100);
    transition: var(--transition);
}

.header.scrolled {
    background-color: var(--white);
    border-bottom: 1px solid var(--gray-200);
    box-shadow: var(--shadow-sm);
    height: 70px;
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-family: var(--font-heading);
    font-weight: 900;
    font-size: 1.25rem;
    letter-spacing: -0.02em;
    color: var(--dark);
}

.logo-tagline {
    font-size: 0.75rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--gray-500);
    border-left: 2px solid var(--gray-200);
    padding-left: 16px;
    margin-top: 2px;
}

.logo img {
    height: 44px;
    width: auto;
    transition: var(--transition);
}

.header.scrolled .logo img {
    height: 38px;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 36px;
    list-style: none;
}

.nav-link {
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--gray-700);
    position: relative;
    padding: 6px 0;
}

.nav-link:hover, .nav-link.active {
    color: var(--dark);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary);
    transition: var(--transition);
}

.nav-link:hover::after, .nav-link.active::after {
    width: 100%;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

/* Modern Swiss Minimal Button Styles */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 0.95rem;
    padding: 12px 28px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition);
    border: 2px solid transparent;
    text-align: center;
    gap: 8px;
}

.btn-primary {
    background-color: var(--primary);
    color: var(--dark);
    border-color: var(--dark);
    box-shadow: var(--shadow-solid);
}

.btn-primary:hover {
    background-color: var(--primary-dark);
    transform: translate(2px, 2px);
    box-shadow: var(--shadow-solid-hover);
}

.btn-secondary {
    background-color: var(--white);
    color: var(--dark);
    border-color: var(--dark);
    box-shadow: var(--shadow-solid);
}

.btn-secondary:hover {
    background-color: var(--gray-100);
    transform: translate(2px, 2px);
    box-shadow: var(--shadow-solid-hover);
}

.btn-dark {
    background-color: var(--dark);
    color: var(--white);
    border-color: var(--dark);
}

.btn-dark:hover {
    background-color: var(--gray-900);
}

.btn-outline {
    background-color: transparent;
    border-color: var(--gray-200);
    color: var(--gray-700);
}

.btn-outline:hover {
    border-color: var(--dark);
    color: var(--dark);
    background-color: var(--gray-50);
}

.btn-sm {
    padding: 8px 16px;
    font-size: 0.85rem;
    border-width: 1px;
}

.btn-block {
    width: 100%;
}

/* Mobile Nav Toggle */
.menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 24px;
    height: 18px;
    background: transparent;
    border: none;
    cursor: pointer;
    z-index: 1100;
}

.menu-toggle span {
    width: 100%;
    height: 2px;
    background-color: var(--dark);
    transition: var(--transition);
}

/* Badges */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 6px 14px;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    width: fit-content;
}

.badge-yellow {
    background-color: var(--primary);
    color: var(--dark);
}

.badge-dark {
    background-color: var(--dark);
    color: var(--white);
}

.badge-outline {
    border: 1.5px solid var(--gray-300);
    color: var(--gray-700);
    background-color: transparent;
}

/* --- Pages & Components --- */

/* Hero Styles */
.hero {
    padding-top: calc(var(--header-height) + 40px);
    padding-bottom: 80px;
    background-color: var(--white);
    position: relative;
    overflow: hidden;
}

.hero-content {
    max-width: 680px;
}

.hero h1 {
    margin-bottom: 24px;
}

.hero p {
    margin-bottom: 36px;
}

.hero-cta {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 48px;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    border-top: 1px solid var(--gray-200);
    padding-top: 32px;
}

.stat-item h3 {
    font-size: 2.25rem;
    color: var(--dark);
    font-weight: 900;
    margin-bottom: 4px;
}

.stat-item p {
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--gray-500);
    margin-bottom: 0;
}

/* Feature/Visual Grid Hero Right */
.hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-card {
    background-color: var(--white);
    border: 2px solid var(--dark);
    padding: 30px;
    border-radius: var(--radius-md);
    box-shadow: 12px 12px 0px 0px var(--primary);
    max-width: 440px;
    position: relative;
    z-index: 2;
}

.hero-card h3 {
    margin-bottom: 12px;
}

.hero-card ul {
    list-style: none;
    margin-top: 20px;
}

.hero-card ul li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: 14px;
    font-size: 0.95rem;
}

.hero-card ul li i {
    color: var(--primary-dark);
    margin-top: 4px;
}

.hero-bg-accent {
    position: absolute;
    width: 300px;
    height: 300px;
    background-color: var(--primary-light);
    border-radius: 50%;
    filter: blur(60px);
    z-index: 1;
    right: 10%;
    top: 10%;
}

/* Comparison Table (The Real Problem) */
.comparison-section {
    background-color: var(--light);
    border-top: 1px solid var(--gray-200);
    border-bottom: 1px solid var(--gray-200);
}

.comparison-wrapper {
    background-color: var(--white);
    border: 2px solid var(--dark);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    margin-top: 48px;
}

.comparison-header {
    display: grid;
    grid-template-columns: 1fr 1fr;
    background-color: var(--dark);
    color: var(--white);
    font-weight: 800;
    font-size: 1.1rem;
    border-bottom: 2px solid var(--dark);
}

.comparison-col {
    padding: 20px 30px;
}

.comparison-col.yellow-accent {
    background-color: var(--primary);
    color: var(--dark);
}

.comparison-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    border-bottom: 1px solid var(--gray-200);
    transition: var(--transition);
}

.comparison-row:last-child {
    border-bottom: none;
}

.comparison-row:hover {
    background-color: var(--gray-50);
}

.comparison-cell {
    padding: 24px 30px;
    font-size: 0.95rem;
    display: flex;
    gap: 12px;
    align-items: flex-start;
}

.comparison-cell i {
    margin-top: 4px;
}

.comparison-cell.fail-cell {
    color: var(--gray-600);
}

.comparison-cell.success-cell {
    font-weight: 600;
    color: var(--dark);
    background-color: rgba(255, 211, 0, 0.05);
    border-left: 1px solid var(--gray-100);
}

.comparison-cell.fail-cell i {
    color: #EF4444;
}

.comparison-cell.success-cell i {
    color: #10B981;
}

/* Course Cards Grid */
.course-card {
    background-color: var(--white);
    border: 2px solid var(--dark);
    border-radius: var(--radius-md);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    height: 100%;
    transition: var(--transition);
}

.course-card:hover {
    transform: translateY(-6px);
    box-shadow: 6px 6px 0px 0px var(--dark);
}

.course-thumb {
    position: relative;
    height: 200px;
    background-color: var(--gray-100);
    overflow: hidden;
    border-bottom: 2px solid var(--dark);
}

.course-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.course-card:hover .course-thumb img {
    transform: scale(1.05);
}

.course-tag {
    position: absolute;
    top: 16px;
    left: 16px;
    background-color: var(--dark);
    color: var(--white);
    padding: 4px 10px;
    border-radius: var(--radius-sm);
    font-size: 0.7rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.course-duration {
    position: absolute;
    bottom: 16px;
    right: 16px;
    background-color: rgba(15, 15, 17, 0.85);
    color: var(--white);
    padding: 4px 10px;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 700;
}

.course-body {
    padding: 24px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.course-meta {
    display: flex;
    justify-content: space-between;
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--gray-500);
    margin-bottom: 12px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.course-title {
    font-size: 1.25rem;
    font-weight: 800;
    margin-bottom: 12px;
    line-height: 1.3;
}

.course-desc {
    font-size: 0.9rem;
    color: var(--gray-600);
    margin-bottom: 20px;
    line-height: 1.5;
    flex-grow: 1;
    display: -webkit-box;
    -webkit-line-clamp: 4;
    line-clamp: 4;
    -webkit-box-orient: vertical;
    overflow: hidden;
    text-overflow: ellipsis;
}

.course-tags-container {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: auto;
}

.course-subtag {
    background-color: var(--gray-100);
    color: var(--gray-700);
    padding: 4px 10px;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
}

.course-footer {
    padding: 20px 24px;
    border-top: 1px solid var(--gray-100);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: var(--gray-50);
}

.course-fee-info {
    display: flex;
    flex-direction: column;
}

.course-fee-info span {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--gray-500);
    text-transform: uppercase;
}

.course-fee {
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--dark);
}

/* Interactive Filter Bar */
.filter-section {
    padding: 24px 0;
    background-color: var(--white);
    border-bottom: 1px solid var(--gray-200);
}

.filter-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
}

.filter-btn-group {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.filter-btn {
    background-color: var(--white);
    border: 1.5px solid var(--gray-200);
    color: var(--gray-700);
    padding: 8px 18px;
    border-radius: var(--radius-sm);
    font-weight: 700;
    font-size: 0.85rem;
    cursor: pointer;
    transition: var(--transition);
}

.filter-btn:hover {
    border-color: var(--dark);
    color: var(--dark);
}

.filter-btn.active {
    background-color: var(--dark);
    border-color: var(--dark);
    color: var(--white);
}

.catalog-metric {
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--gray-500);
}

/* Why Choose Us Grid */
.why-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 20px;
    margin-top: 48px;
}

.why-card {
    background-color: var(--white);
    border: 2px solid var(--dark);
    border-radius: var(--radius-md);
    padding: 24px;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    height: 100%;
}

.why-card:hover {
    box-shadow: 6px 6px 0px 0px var(--primary);
    transform: translateY(-4px);
}

.why-icon {
    font-size: 2rem;
    margin-bottom: 16px;
    height: 50px;
    display: flex;
    align-items: center;
}

.why-card h4 {
    font-size: 1.1rem;
    font-weight: 800;
    margin-bottom: 12px;
}

.why-card p {
    font-size: 0.85rem;
    color: var(--gray-600);
    margin-bottom: 0;
    line-height: 1.5;
}

/* Interactive Tabs (For curriculum etc) */
.tabs-container {
    margin-top: 40px;
}

.tab-nav {
    display: flex;
    gap: 8px;
    border-bottom: 2px solid var(--gray-200);
    margin-bottom: 30px;
    overflow-x: auto;
    padding-bottom: 2px;
}

.tab-btn {
    background: none;
    border: none;
    padding: 12px 24px;
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1rem;
    color: var(--gray-500);
    cursor: pointer;
    position: relative;
    white-space: nowrap;
    transition: var(--transition);
}

.tab-btn:hover {
    color: var(--dark);
}

.tab-btn.active {
    color: var(--dark);
}

.tab-btn.active::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 100%;
    height: 4px;
    background-color: var(--primary);
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

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

.module-card {
    background-color: var(--white);
    border: 2px solid var(--dark);
    border-radius: var(--radius-md);
    padding: 30px;
    display: grid;
    grid-template-columns: 2fr 1.2fr;
    gap: 40px;
    align-items: center;
}

.module-info h3 {
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.module-info p {
    font-size: 1rem;
    color: var(--gray-700);
    line-height: 1.6;
    margin-bottom: 24px;
}

.module-skills-title {
    font-weight: 800;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--gray-500);
    margin-bottom: 12px;
}

.module-skills {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.module-skills span {
    background-color: var(--primary-light);
    color: var(--dark);
    font-size: 0.85rem;
    font-weight: 700;
    padding: 6px 14px;
    border-radius: var(--radius-sm);
    border: 1px solid rgba(15,15,17,0.1);
}

.module-visual {
    background-color: var(--gray-50);
    border-left: 2px solid var(--dark);
    padding: 30px;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.module-visual-item {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
    font-size: 0.95rem;
    font-weight: 700;
}

.module-visual-item:last-child {
    margin-bottom: 0;
}

.module-visual-item i {
    color: #10B981;
}

/* FAQ Accordion */
.faq-section {
    background-color: var(--white);
    border-top: 1px solid var(--gray-200);
}

.faq-list {
    max-width: 800px;
    margin: 48px auto 0;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.faq-item {
    border: 2px solid var(--dark);
    border-radius: var(--radius-md);
    background-color: var(--white);
    overflow: hidden;
    transition: var(--transition);
}

.faq-trigger {
    width: 100%;
    background: none;
    border: none;
    padding: 24px 30px;
    text-align: left;
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.1rem;
    color: var(--dark);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
}

.faq-trigger i {
    transition: var(--transition);
    font-size: 1rem;
    color: var(--gray-500);
}

.faq-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    background-color: var(--gray-50);
}

.faq-content-inner {
    padding: 0 30px 24px;
    font-size: 0.95rem;
    color: var(--gray-700);
    line-height: 1.6;
}

.faq-item.active {
    box-shadow: 4px 4px 0px 0px var(--dark);
}

.faq-item.active .faq-trigger i {
    transform: rotate(180deg);
    color: var(--dark);
}

.faq-item.active .faq-content {
    max-height: 300px; /* Adjust as needed */
}

/* Course Details Modal */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(15, 15, 17, 0.7);
    backdrop-filter: blur(8px);
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: var(--transition);
}

.modal-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

.modal-container {
    background-color: var(--white);
    border: 3px solid var(--dark);
    border-radius: var(--radius-md);
    width: 90%;
    max-width: 680px;
    max-height: 85vh;
    overflow-y: auto;
    box-shadow: 12px 12px 0px 0px var(--dark);
    position: relative;
    padding: 40px;
}

/* --- Dynamic Sections --- */

/* Testimonials Grid */
.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}

.testimonial-card {
    background-color: var(--white);
    border: 2px solid var(--dark);
    border-radius: var(--radius-md);
    padding: 30px;
    box-shadow: 6px 6px 0px 0px var(--primary);
    transition: var(--transition);
}

.testimonial-card:hover {
    transform: translate(-2px, -2px);
    box-shadow: 8px 8px 0px 0px var(--primary);
}

.testimonial-quote {
    font-size: 1rem;
    line-height: 1.6;
    color: var(--gray-700);
    margin-bottom: 24px;
    font-style: italic;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 12px;
}

.author-info h4 {
    font-size: 0.95rem;
    font-weight: 800;
    margin-bottom: 2px;
}

.author-info p {
    font-size: 0.8rem;
    color: var(--gray-500);
    font-weight: 600;
}

/* Success Stories Grid */
.success-stories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}

.success-story-card {
    background-color: var(--dark-light);
    border: 2px solid var(--dark);
    border-radius: var(--radius-md);
    overflow: hidden;
    color: var(--white);
    box-shadow: 6px 6px 0px 0px var(--dark);
}

.video-wrap {
    position: relative;
    padding-bottom: 56.25%; /* 16:9 Aspect Ratio */
    height: 0;
    background-color: var(--dark);
}

.video-wrap iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
}

.story-body {
    padding: 24px;
}

.story-body h4 {
    margin-bottom: 8px;
    color: var(--primary);
}

.story-body p {
    font-size: 0.9rem;
    color: var(--gray-300);
    line-height: 1.5;
}

/* Blogs Grid */
.blogs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}

.blog-card {
    background-color: var(--white);
    border: 2px solid var(--dark);
    border-radius: var(--radius-md);
    padding: 24px;
    transition: var(--transition);
}

.blog-card:hover {
    border-color: var(--primary-dark);
    box-shadow: 6px 6px 0px 0px var(--primary);
}

.blog-card h3 {
    font-size: 1.25rem;
    margin-bottom: 12px;
    line-height: 1.3;
}

.blog-card p {
    font-size: 0.95rem;
    color: var(--gray-700);
    line-height: 1.6;
    margin-bottom: 20px;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.blog-link {
    font-weight: 800;
    color: var(--dark);
    text-decoration: underline;
    text-decoration-color: var(--primary);
    text-underline-offset: 4px;
    font-size: 0.9rem;
}

/* Course Combinations & Custom Courses */
.combo-badge {
    background-color: #EF4444;
    color: white;
    padding: 4px 10px;
    border-radius: var(--radius-sm);
    font-size: 0.7rem;
    font-weight: 900;
    text-transform: uppercase;
    position: absolute;
    top: 16px;
    left: 16px;
}

.price-tag {
    display: flex;
    align-items: baseline;
    gap: 8px;
}

.original-price {
    text-decoration: line-through;
    color: var(--gray-500);
    font-size: 0.9rem;
}

.final-price {
    font-size: 1.5rem;
    font-weight: 900;
    color: var(--dark);
}

    transform: scale(0.9);
    transition: var(--transition);
    position: relative;
}

.modal-overlay.active .modal-container {
    transform: scale(1);
}

.modal-close {
    position: absolute;
    top: 20px;
    right: 24px;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--gray-500);
    transition: var(--transition);
    z-index: 10;
}

.modal-close:hover {
    color: var(--dark);
}

.modal-hero {
    background-color: var(--primary-light);
    padding: 40px 30px;
    border-bottom: 2px solid var(--dark);
}

.modal-hero h2 {
    margin-top: 12px;
    margin-bottom: 8px;
}

.modal-body {
    padding: 30px;
}

.modal-meta-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin-bottom: 24px;
    border-bottom: 1px solid var(--gray-200);
    padding-bottom: 20px;
}

.modal-meta-item {
    font-size: 0.9rem;
}

.modal-meta-item strong {
    display: block;
    font-family: var(--font-heading);
    font-size: 1rem;
    color: var(--dark);
    margin-bottom: 2px;
}

.modal-section-title {
    font-weight: 800;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--gray-500);
    margin-bottom: 12px;
}

.modal-outcomes {
    margin-bottom: 24px;
}

.modal-chapters-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 24px;
}

.modal-chapters-list li {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.95rem;
    font-weight: 600;
}

.modal-chapters-list li i {
    color: var(--primary-dark);
}

.modal-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid var(--gray-200);
    padding-top: 20px;
}

/* Contact Page Form */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 60px;
}

.contact-info-block {
    display: flex;
    flex-direction: column;
    gap: 32px;
}

.contact-item {
    display: flex;
    gap: 20px;
}

.contact-icon {
    width: 48px;
    height: 48px;
    background-color: var(--primary);
    border: 2px solid var(--dark);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    flex-shrink: 0;
}

.contact-text h4 {
    font-size: 1.1rem;
    margin-bottom: 6px;
}

.contact-text p {
    font-size: 0.95rem;
    color: var(--gray-600);
    margin-bottom: 0;
}

.contact-card {
    background-color: var(--white);
    border: 2px solid var(--dark);
    border-radius: var(--radius-md);
    padding: 40px;
    box-shadow: var(--shadow-md);
}

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

.form-group label {
    display: block;
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 0.9rem;
    color: var(--dark);
    margin-bottom: 8px;
}

.form-control {
    width: 100%;
    padding: 12px 16px;
    font-family: var(--font-body);
    font-size: 1rem;
    background-color: var(--white);
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-sm);
    transition: var(--transition);
    color: var(--dark);
}

.form-control:focus {
    outline: none;
    border-color: var(--dark);
}

textarea.form-control {
    resize: vertical;
    min-height: 120px;
}

/* Form success message overlay inside contact card */
.contact-success {
    text-align: center;
    padding: 20px 0;
}

.contact-success-icon {
    font-size: 3.5rem;
    color: #10B981;
    margin-bottom: 20px;
}

/* Shared Footer */
.footer {
    background-color: var(--dark);
    color: var(--white);
    padding: 80px 0 40px;
    border-top: 3px solid var(--primary);
}

.footer h1, .footer h2, .footer h3, .footer h4 {
    color: var(--white);
}

.footer p {
    color: var(--gray-400);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr repeat(3, 1fr);
    gap: 40px;
    margin-bottom: 60px;
}

.footer-brand h3 {
    margin-bottom: 16px;
    font-size: 1.5rem;
    font-weight: 900;
}

.footer-brand p {
    font-size: 0.9rem;
    line-height: 1.6;
    margin-bottom: 24px;
    max-width: 280px;
}

.footer-socials {
    display: flex;
    gap: 12px;
}

.social-link {
    width: 38px;
    height: 38px;
    background-color: var(--dark-light);
    border: 1px solid var(--gray-700);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gray-400);
    transition: var(--transition);
}

.social-link:hover {
    background-color: var(--primary);
    border-color: var(--primary);
    color: var(--dark);
    transform: translateY(-2px);
}

.footer-links-col h4 {
    font-size: 0.9rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 24px;
    color: var(--primary);
}

.footer-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links a {
    color: var(--gray-400);
    font-size: 0.9rem;
}

.footer-links a:hover {
    color: var(--white);
    padding-left: 4px;
}

.footer-bottom {
    border-top: 1px solid var(--gray-700);
    padding-top: 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
}

.footer-bottom p {
    font-size: 0.85rem;
    color: var(--gray-500);
    margin-bottom: 0;
}

.footer-bottom-links {
    display: flex;
    gap: 24px;
}

.footer-bottom-links a {
    color: var(--gray-500);
    font-size: 0.85rem;
}

.footer-bottom-links a:hover {
    color: var(--white);
}

/* Banner section inside Home or other pages */
.banner-section {
    background-color: var(--primary);
    border-top: 2px solid var(--dark);
    border-bottom: 2px solid var(--dark);
    padding: 60px 0;
    text-align: center;
}

.banner-content {
    max-width: 700px;
    margin: 0 auto;
}

.banner-content h2 {
    color: var(--dark);
    margin-bottom: 12px;
}

.banner-content p {
    color: var(--dark);
    font-weight: 500;
    margin-bottom: 24px;
}

/* Partnership Section Styles */
.partnership-box {
    background-color: var(--white);
    border: 2px solid var(--dark);
    border-radius: var(--radius-lg);
    padding: clamp(30px, 5vw, 60px);
    box-shadow: 16px 16px 0px 0px var(--dark);
    position: relative;
    overflow: hidden;
    margin-top: 40px;
}

.partnership-inner {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 48px;
    align-items: center;
}

.partnership-visual {
    background-color: var(--gray-50);
    padding: 40px;
    border-radius: var(--radius-md);
    border: 2px solid var(--dark);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 40px;
    position: relative;
}

.partnership-visual img {
    max-width: 180px;
    height: auto;
    transition: var(--transition);
}

.partnership-visual img:hover {
    transform: scale(1.05);
}

.partnership-info .badge {
    margin-bottom: 16px;
}

.partnership-info h2 {
    margin-bottom: 20px;
}

.partnership-info p.lead-text {
    font-size: 1.1rem;
    color: var(--gray-600);
    margin-bottom: 32px;
}

.partnership-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.p-feature {
    display: flex;
    gap: 16px;
}

.p-feature-icon {
    width: 32px;
    height: 32px;
    background-color: var(--primary);
    border: 1.5px solid var(--dark);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 0.8rem;
}

.p-feature-text h4 {
    font-size: 0.95rem;
    margin-bottom: 4px;
}

.p-feature-text p {
    font-size: 0.8rem;
    color: var(--gray-500);
    margin-bottom: 0;
    line-height: 1.4;
}

/* Animations */
@keyframes slideDown {
    from { transform: translateY(-100%); }
    to { transform: translateY(0); }
}

/* Responsive Styles */
@media (max-width: 1024px) {
    
    .header {
        background-color: var(--white);
    }

    .logo-tagline {
        display: none !important;
    }

    .why-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 768px) {
    :root {
        --header-height: 70px;
    }

    .grid-2, .grid-3, .grid-4, .contact-grid, .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .hero {
        padding-top: calc(var(--header-height) + 20px);
        padding-bottom: 60px;
    }

    .hero-visual {
        margin-bottom: 20px;
    }

    .hero-stats {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }

    .why-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .module-card {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .module-visual {
        border-left: none;
        border-top: 2px solid var(--dark);
        padding: 24px 0 0 0;
        background: none;
    }

    /* Mobile Nav */
    .menu-toggle {
        display: flex;
    }

    .nav-links {
        position: fixed;
        top: var(--header-height);
        left: 0;
        right: 0;
        bottom: 0;
        background-color: var(--white) !important;
        flex-direction: column;
        justify-content: flex-start;
        padding: 40px 24px;
        gap: 24px;
        opacity: 0;
        pointer-events: none;
        transform: translateY(-10px);
        transition: var(--transition);
        border-top: 1px solid var(--gray-100);
        z-index: 999;
    }

    .nav-links.active {
        opacity: 1;
        pointer-events: auto;
        transform: translateY(0);
        height: calc(50vh - var(--header-height));
    }

    .menu-toggle.active span:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }

    .menu-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .menu-toggle.active span:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }

    .comparison-header {
        font-size: 0.95rem;
    }

    .partnership-inner {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .partnership-visual {
        flex-direction: row;
        justify-content: center;
        gap: 60px;
        padding: 30px;
    }

    .comparison-col {
        padding: 15px;
    }

    .comparison-cell {
        padding: 15px;
        font-size: 0.85rem;
    }

    .tab-btn {
        padding: 10px 16px;
        font-size: 0.9rem;
    }
}

@media (max-width: 600px) {
    .partnership-visual {
        flex-direction: column;
        gap: 30px;
    }
    
    .partnership-features {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .why-grid {
        grid-template-columns: 1fr;
    }

    .hero-stats {
        grid-template-columns: 1fr;
    }

    .comparison-header {
        grid-template-columns: 1fr;
        border-bottom: none;
    }

    .comparison-col.yellow-accent {
        border-top: 2px solid var(--dark);
    }

    .comparison-row {
        grid-template-columns: 1fr;
        border-bottom: 2px solid var(--dark);
    }

    .comparison-cell.success-cell {
        border-left: none;
        border-top: 1px solid var(--gray-200);
    }
}

/* Custom Scroll Animations (AOS replacement) */
[data-aos] {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

[data-aos].aos-animate {
    opacity: 1;
    transform: translateY(0);
}

/* Neo-Brutalist WhatsApp Float Button */
.whatsapp-float {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background-color: #25D366;
    color: #ffffff !important;
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 20px;
    border: 3px solid var(--dark);
    border-radius: var(--radius-full);
    box-shadow: 4px 4px 0px 0px var(--dark);
    z-index: 9999;
    text-decoration: none;
    transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.whatsapp-float i {
    font-size: 1.4rem;
}

.whatsapp-float:hover {
    transform: translate(-2px, -2px);
    box-shadow: 6px 6px 0px 0px var(--dark);
    background-color: #20ba5a;
}

@media (max-width: 768px) {
    .whatsapp-float {
        bottom: 20px;
        right: 20px;
        padding: 12px;
    }
    .whatsapp-float span {
        display: none;
    }
}

/* Zoho Partnership Section Custom CSS (Matches Swiss-Modern Neo-Brutalist styling) */
#zoho-partnership {
    padding: 80px 0;
}

#zoho-partnership .rounded-3xl {
    background-color: var(--white);
    border: 3px solid var(--dark);
    border-radius: 24px;
    padding: 48px;
    box-shadow: 12px 12px 0px 0px var(--dark);
    position: relative;
    overflow: hidden;
}

#zoho-partnership .grid-cols-12 {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: 48px;
    align-items: center;
}

#zoho-partnership .lg\:col-span-5 {
    grid-column: span 5;
}

#zoho-partnership .lg\:col-span-7 {
    grid-column: span 7;
}

#zoho-partnership .bg-gray-100\/50 {
    background-color: var(--gray-100);
    border: 2px solid var(--dark);
    border-radius: 16px;
    padding: 40px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 32px;
}

#zoho-partnership .bg-gray-100\/50 img {
    max-width: 220px;
    height: auto;
    transition: var(--transition);
}

#zoho-partnership .bg-gray-100\/50 img:hover {
    transform: scale(1.05);
}

#zoho-partnership .inline-block {
    display: inline-block;
}

#zoho-partnership .mb-4 {
    margin-bottom: 16px;
}

#zoho-partnership .bg-\[\#f6955c\]\/10 {
    background-color: rgba(246, 149, 92, 0.15);
    color: #e67e22;
    font-weight: 800;
    font-size: 0.75rem;
    text-transform: uppercase;
    padding: 6px 14px;
    border-radius: var(--radius-full);
    border: 2px solid rgba(230, 126, 34, 0.3);
}

#zoho-partnership h2 {
    font-size: clamp(1.8rem, 3.5vw, 2.5rem);
    font-weight: 900;
    line-height: 1.2;
    color: var(--dark);
    margin-bottom: 24px;
}

#zoho-partnership p.text-black-500 {
    font-size: 1.1rem;
    color: var(--gray-700);
    line-height: 1.6;
    margin-bottom: 32px;
}

#zoho-partnership .sm\:grid-cols-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

#zoho-partnership .flex {
    display: flex;
}

#zoho-partnership .items-start {
    align-items: flex-start;
}

#zoho-partnership .gap-3 {
    gap: 16px;
}

#zoho-partnership .bg-secondary\/10 {
    background-color: var(--primary-light);
    border: 2px solid var(--dark);
    padding: 8px;
    border-radius: var(--radius-sm);
    color: var(--dark);
    flex-shrink: 0;
}

#zoho-partnership .bg-secondary\/10 svg {
    width: 16px;
    height: 16px;
}

#zoho-partnership .font-bold {
    font-weight: 800;
}

#zoho-partnership h4.text-sm {
    font-size: 0.95rem;
    color: var(--dark);
    margin-bottom: 4px;
}

#zoho-partnership p.text-xs {
    font-size: 0.8rem;
    color: var(--gray-500);
    margin-bottom: 0;
}

@media (max-width: 991px) {
    #zoho-partnership .grid-cols-12 {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    #zoho-partnership .lg\:col-span-5,
    #zoho-partnership .lg\:col-span-7 {
        grid-column: span 12;
    }
}

@media (max-width: 480px) {
    #zoho-partnership .sm\:grid-cols-2 {
        grid-template-columns: 1fr;
    }
    #zoho-partnership .rounded-3xl {
        padding: 24px;
    }
}

/* --- Hero Floating Image Support & Responsiveness (Swiss-Modern Neo-Brutalist) --- */
.hero-image-wrapper {
    position: absolute;
    width: 220px;
    border: 3px solid var(--dark);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-solid);
    background: var(--white);
    z-index: 10;
    transition: var(--transition);
}

.hero-image-wrapper.home-hero {
    bottom: -30px;
    left: -40px;
    transform: rotate(-5deg);
}

.hero-image-wrapper.about-hero {
    top: -30px;
    right: -30px;
    transform: rotate(5deg);
}

.hero-image-wrapper:hover {
    transform: scale(1.05) rotate(0deg) !important;
    z-index: 12;
}

/* responsive rule to prevent overlapping and blocking content */
@media (max-width: 991px) {
    .hero-visual {
        flex-direction: column !important;
        gap: 32px !important;
        align-items: center !important;
        margin-top: 32px !important;
    }

    .hero-image-wrapper {
        position: relative !important;
        bottom: auto !important;
        left: auto !important;
        top: auto !important;
        right: auto !important;
        width: 100% !important;
        max-width: 280px !important;
        transform: none !important;
        margin: 20px auto 0 !important;
        box-shadow: var(--shadow-solid) !important;
    }

    .hero-image-wrapper.home-hero,
    .hero-image-wrapper.about-hero {
        transform: none !important;
        bottom: auto !important;
        left: auto !important;
        top: auto !important;
        right: auto !important;
    }
}

/* --- Course Card & Filtering Enhancements --- */
.filter-btn-group {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin: 10px 0;
}

.course-card {
    cursor: pointer;
    transition: var(--transition);
}

.course-card:hover {
    transform: translateY(-6px);
    box-shadow: 6px 6px 0px 0px var(--dark);
}

/* --- Options Modal & Syllabus Download Layout --- */
.download-modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(15, 15, 17, 0.6);
    backdrop-filter: blur(8px);
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: var(--transition);
}

.download-modal-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

.download-modal {
    background-color: var(--white);
    border: 3px solid var(--dark);
    border-radius: var(--radius-lg);
    width: 100%;
    max-width: 480px;
    padding: 32px;
    box-shadow: var(--shadow-solid);
    transform: translateY(20px);
    transition: var(--transition);
    position: relative;
}

.download-modal-overlay.active .download-modal {
    transform: translateY(0);
}

.download-modal-close {
    position: absolute;
    top: 20px;
    right: 20px;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--gray-500);
    transition: var(--transition);
}

.download-modal-close:hover {
    color: var(--dark);
    transform: scale(1.1);
}

.download-modal h3 {
    font-size: 1.5rem;
    margin-bottom: 8px;
    letter-spacing: -0.01em;
    color: var(--dark);
    font-weight: 800;
}

.download-modal p {
    font-size: 0.9rem;
    color: var(--gray-500);
    margin-bottom: 24px;
}

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

.form-label {
    display: block;
    font-size: 0.85rem;
    font-weight: 800;
    text-transform: uppercase;
    color: var(--dark);
    margin-bottom: 8px;
    letter-spacing: 0.05em;
}

.select-input {
    width: 100%;
    padding: 12px;
    border: 2px solid var(--dark);
    border-radius: var(--radius-sm);
    font-family: inherit;
    font-size: 0.95rem;
    outline: none;
    background-color: var(--white);
    font-weight: 600;
    cursor: pointer;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--gray-700);
    cursor: pointer;
}

.checkbox-input {
    width: 18px;
    height: 18px;
    accent-color: var(--dark);
    cursor: pointer;
}

/* --- Details Page Specific Layout --- */
.details-container {
    padding: 120px 0 80px;
    background-color: var(--white);
}

.details-wrapper {
    display: grid;
    grid-template-columns: 1.8fr 1.2fr;
    gap: 48px;
    align-items: start;
}

@media (max-width: 992px) {
    .details-wrapper {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}

/* Details Hero Content */
.details-hero {
    margin-bottom: 32px;
}

.details-hero h1 {
    font-size: clamp(2.2rem, 4vw, 3.2rem);
    line-height: 1.15;
    margin: 16px 0;
    letter-spacing: -0.02em;
}

.rating-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-weight: 700;
    font-size: 0.9rem;
    color: var(--dark);
    background-color: var(--primary-light);
    padding: 6px 14px;
    border-radius: var(--radius-full);
    border: 1.5px solid var(--dark);
}

.feature-pills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 16px;
    margin: 32px 0;
}

.feature-pill-card {
    background-color: var(--gray-50);
    border: 2px solid var(--dark);
    border-radius: var(--radius-md);
    padding: 16px;
    display: flex;
    align-items: center;
    gap: 14px;
    transition: var(--transition);
}

.feature-pill-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-solid-hover);
    background-color: var(--white);
}

.feature-pill-card i {
    font-size: 1.5rem;
    color: var(--dark);
}

.feature-pill-card-info h4 {
    font-size: 0.95rem;
    font-weight: 800;
    margin-bottom: 2px;
}

.feature-pill-card-info p {
    font-size: 0.8rem;
    color: var(--gray-500);
    margin-bottom: 0;
}

/* Syllabus Accordion */
.syllabus-section {
    margin-top: 48px;
}

.syllabus-title {
    font-size: 1.8rem;
    margin-bottom: 24px;
    border-bottom: 3px solid var(--dark);
    padding-bottom: 12px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.chapters-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.chapter-item {
    background-color: var(--white);
    border: 2px solid var(--dark);
    border-radius: var(--radius-md);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    transition: var(--transition);
}

.chapter-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 24px;
    cursor: pointer;
    background-color: var(--white);
    transition: var(--transition);
}

.chapter-header:hover {
    background-color: var(--primary-light);
}

.chapter-toggle-icon {
    font-size: 0.95rem;
    transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1);
    color: var(--gray-500);
}

.chapter-item.active .chapter-toggle-icon {
    transform: rotate(180deg);
    color: var(--dark);
}

.chapter-dropdown {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    background-color: var(--gray-50);
    border-top: 0px solid var(--gray-200);
}

.chapter-item.active .chapter-dropdown {
    border-top: 1.5px solid var(--dark);
}

.chapter-dropdown-content {
    padding: 20px 24px;
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.chapter-section-box {
    background: var(--white);
    border: 1.5px solid var(--dark);
    border-radius: var(--radius-sm);
    padding: 14px 18px;
    box-shadow: 2px 2px 0px 0px var(--dark);
}

.chapter-section-title {
    font-size: 0.95rem;
    font-weight: 800;
    color: var(--dark);
    margin-bottom: 8px;
}

.chapter-subsections-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 6px;
    padding-left: 4px;
}

.chapter-subsection-item {
    font-size: 0.85rem;
    color: var(--gray-600);
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
}

.chapter-subsection-item i {
    font-size: 0.75rem;
    color: var(--dark);
}

.chapter-number {
    background-color: var(--dark);
    color: var(--white);
    width: 32px;
    height: 32px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 0.9rem;
    flex-shrink: 0;
}

.chapter-name {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--dark);
}

/* Sidebar Sticky Box */
.sidebar-card {
    background-color: var(--white);
    border: 3px solid var(--dark);
    border-radius: var(--radius-lg);
    padding: 32px;
    box-shadow: var(--shadow-solid);
    position: sticky;
    top: 100px;
    z-index: 10;
}

.sidebar-thumb {
    width: 100%;
    height: 220px;
    border: 2px solid var(--dark);
    border-radius: var(--radius-md);
    overflow: hidden;
    margin-bottom: 24px;
    background-color: var(--gray-100);
}

.sidebar-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.pricing-section {
    margin-bottom: 24px;
}

.price-label {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--gray-500);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.price-value-container {
    display: flex;
    align-items: baseline;
    gap: 12px;
    margin-top: 4px;
}

.price-current {
    font-size: 2.2rem;
    font-weight: 900;
    color: var(--dark);
}

.price-original {
    font-size: 1.3rem;
    font-weight: 600;
    text-decoration: line-through;
    color: var(--gray-500);
}

.discount-tag {
    background-color: var(--dark);
    color: var(--primary);
    font-size: 0.75rem;
    font-weight: 800;
    padding: 4px 8px;
    border-radius: var(--radius-sm);
    text-transform: uppercase;
}

.sidebar-meta-list {
    list-style: none;
    border-top: 2px solid var(--gray-100);
    padding-top: 20px;
    margin-bottom: 24px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.sidebar-meta-item {
    display: flex;
    justify-content: space-between;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--gray-700);
}

.sidebar-meta-item span i {
    width: 20px;
    color: var(--dark);
    margin-right: 4px;
}