:root {
    --bg-color: #f8fafc;
    --text-color: #1e293b;
    --text-muted: #64748b;
    --primary-color: #2563eb;
    --primary-hover: #1d4ed8;
    --accent-gold: #d97706;
    --gold-light: #fef3c7;
    --border-color: rgba(226, 232, 240, 0.8);
    --card-bg: #ffffff;
    --shadow-3d-out: 10px 10px 25px #cbd5e1, -10px -10px 25px #ffffff;
    --shadow-3d-in: inset 6px 6px 12px #cbd5e1, inset -6px -6px 12px #ffffff;
    --shadow-card: 0 10px 30px rgba(0,0,0,0.05);
}

.dark {
    --bg-color: #050b14;
    --text-color: #f8fafc;
    --text-muted: #94a3b8;
    --primary-color: #3b82f6;
    --primary-hover: #2563eb;
    --accent-gold: #fbbf24;
    --gold-light: rgba(245, 158, 11, 0.15);
    --border-color: rgba(30, 41, 59, 0.8);
    --card-bg: #0b1329;
    --shadow-3d-out: 10px 10px 25px #020617, -5px -5px 25px #0f172a;
    --shadow-3d-in: inset 5px 5px 10px #020617, inset -5px -5px 10px #0f172a;
    --shadow-card: 0 10px 30px rgba(0,0,0,0.3);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Outfit', sans-serif;
    transition: background-color 0.3s ease, border-color 0.3s ease, color 0.3s ease;
}

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    min-height: 100vh;
    line-height: 1.6;
}

.container {
    width: 100%;
    max-width: 1140px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* Hero Impression styling */
.about-hero {
    padding: 3rem 0;
}

.main-title {
    font-size: clamp(2rem, 5vw, 2.75rem);
    font-weight: 800;
    text-align: center;
    color: var(--primary-color);
    letter-spacing: -0.03em;
}

.accent-line {
    width: 80px;
    height: 4px;
    background: var(--accent-gold);
    margin: 1.25rem auto 3rem auto;
    border-radius: 999px;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2.5rem;
    align-items: center;
}

@media (min-width: 768px) {
    .hero-grid {
        grid-template-columns: 1.1fr 0.9fr;
    }
}

.hero-image {
    position: relative;
}

.hero-image img {
    width: 100%;
    border-radius: 24px;
    box-shadow: var(--shadow-3d-out);
    border: 1px solid var(--border-color);
}

.hero-content {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.methodology-card {
    background: var(--card-bg);
    border-radius: 20px;
    padding: 1.75rem;
    box-shadow: var(--shadow-3d-out);
    border: 1px solid var(--border-color);
    transform: translateY(0);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.methodology-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.08);
}

.badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 8px;
    font-weight: 700;
    font-size: 0.85rem;
    margin: 0 0.2rem;
}

.badge.red {
    background-color: rgba(239, 68, 68, 0.15);
    color: #ef4444;
}

.badge.blue {
    background-color: rgba(59, 130, 246, 0.15);
    color: #3b82f6;
}

.badge.orange {
    background-color: rgba(249, 115, 22, 0.15);
    color: #f97316;
}

.method-header {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

/* Unified Comparison Tables Styles */
.tables-section {
    padding: 3rem 0;
}

.table-container {
    background: var(--card-bg);
    border-radius: 30px;
    padding: 2.5rem;
    box-shadow: var(--shadow-3d-out);
    border: 1px solid var(--border-color);
    margin-bottom: 3rem;
}

.table-data {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 2rem;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow-card);
}

.table-data th, .table-data td {
    padding: 1rem 1.25rem;
    text-align: left;
}

.table-data tr {
    border-bottom: 1px solid var(--border-color);
}

.table-data tr:last-child {
    border-bottom: none;
}

/* Certificate Mockup Frame styling */
.volunteer-banner {
    background: var(--card-bg);
    border-radius: 30px;
    padding: 3rem 1.5rem;
    box-shadow: var(--shadow-3d-out);
    border: 1px solid var(--border-color);
    margin: 4rem 0;
}

.title-white {
    text-align: center;
    font-size: 2rem;
    font-weight: 800;
    color: var(--primary-color);
}

.subtitle-white {
    text-align: center;
    color: var(--text-color);
    opacity: 0.7;
    margin-top: 0.5rem;
    margin-bottom: 3rem;
    font-weight: 500;
}

.training-layout {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    align-items: center;
}

@media (min-width: 992px) {
    .training-layout {
        grid-template-columns: 0.7fr 1.6fr 0.7fr;
    }
}

.training-img-box {
    text-align: center;
}

.training-img-box img {
    width: 100%;
    max-width: 250px;
    border-radius: 16px;
    box-shadow: var(--shadow-3d-out);
}

.certificate-mockup {
    background: #fff;
    color: #1e293b;
    padding: 2rem;
    border-radius: 16px;
    border: 8px double #1e3a8a;
    box-shadow: 0 10px 30px rgba(0,0,0,0.15);
}

.cert-card {
    border: 2px solid #3b82f6;
    padding: 1.5rem;
    background-color: #fafbfc;
}

.cert-sign-area {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-top: 2rem;
    flex-wrap: wrap;
    gap: 1.5rem;
}

.founder-info {
    text-align: right;
    font-size: 0.85rem;
}

/* Curriculum & Grid lists */
.curriculum-section {
    padding: 3rem 0;
}

.section-label {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary-color);
    margin-bottom: 2rem;
    text-transform: uppercase;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    text-align: center;
    gap: 0.5rem;
}

.topic-box {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    padding: 1rem 1.5rem;
    border-radius: 12px;
    box-shadow: var(--shadow-3d-out);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.25s ease;
}

.topic-box:hover {
    transform: scale(1.02);
    color: var(--primary-color);
    box-shadow: var(--shadow-3d-in);
}

.topic-box i {
    color: var(--accent-gold);
    font-style: normal;
    font-weight: 800;
    margin-right: 0.5rem;
}

.topics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.25rem;
}

/* Career support layout */
.career-stability {
    background: var(--card-bg);
    border-radius: 24px;
    padding: 3rem 2rem;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-3d-out);
    margin: 4rem 0;
}

.stability-header {
    text-align: center;
    margin-bottom: 2.5rem;
}

.stability-header h3 {
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--primary-color);
}

.stability-quote {
    font-size: 1.1rem;
    font-style: italic;
    margin-top: 0.5rem;
    font-weight: 600;
}

.hindi-text {
    color: var(--accent-gold);
    font-weight: 600;
    margin-top: 0.25rem;
}

.career-flex {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2.5rem;
    align-items: center;
}

@media (min-width: 768px) {
    .career-flex {
        grid-template-columns: 0.8fr 1.2fr;
    }
}

.card-visual img {
    width: 100%;
    border-radius: 16px;
    box-shadow: var(--shadow-3d-out);
}

.info-alert {
    padding: 1.5rem;
    border-radius: 16px;
    margin-bottom: 1rem;
    font-weight: 500;
}

.info-alert.green {
    background-color: rgba(16, 185, 129, 0.12);
    color: #065f46;
    border-left: 5px solid #10b981;
}

.info-alert.green-light {
    background-color: rgba(16, 185, 129, 0.06);
    color: #047857;
    border-left: 5px solid rgba(16, 185, 129, 0.5);
}

/* Mentor Profile lists */
.mentor-section {
    padding: 3rem 0;
}

.mentor-container {
    display: grid;
    grid-template-columns: 1fr;
    gap: 3rem;
    align-items: center;
}

@media (min-width: 768px) {
    .mentor-container {
        grid-template-columns: 1.2fr 0.8fr;
    }
}

.mentor-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.25rem;
}

.feature-item {
    padding: 1.5rem;
    border-radius: 16px;
    box-shadow: var(--shadow-3d-out);
    border: 1px solid var(--border-color);
}

.feature-item h5 {
    font-size: 1rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
}

.feature-item.blue-soft {
    border-left: 4px solid var(--primary-color);
    background: rgba(37, 99, 235, 0.05);
}

.feature-item.red-soft {
    border-left: 4px solid #ef4444;
    background: rgba(239, 68, 68, 0.05);
}

.mentor-image img {
    width: 100%;
    border-radius: 16px;
    box-shadow: var(--shadow-3d-out);
}

/* Roles: Teacher & Student Wrapper */
.roles-wrapper {
    margin: 4rem 0;
    display: flex;
    flex-direction: column;
    gap: 2.5rem;
}

.role-block {
    background: var(--card-bg);
    border-radius: 24px;
    padding: 2.5rem;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-3d-out);
}

.role-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    align-items: center;
}

@media (min-width: 768px) {
    .role-grid {
        grid-template-columns: 0.8fr 1.2fr;
    }
    .role-grid.reverse {
        grid-template-columns: 1.2fr 0.8fr;
    }
}

.role-main-img {
    width: 100%;
    border-radius: 16px;
    box-shadow: var(--shadow-3d-out);
}

.role-info h4 {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.method-img {
    width: 100%;
    max-width: 350px;
    border-radius: 12px;
    margin-top: 1.5rem;
    box-shadow: var(--shadow-3d-in);
}

/* Skill Cards Section Styles */
.exam-card-section {
    padding: 3rem 0;
}

.skill-cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.skill-card-item {
    background: var(--card-bg);
    border-radius: 20px;
    overflow: hidden;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-3d-out);
    transition: transform 0.3s ease;
}

.skill-card-item:hover {
    transform: translateY(-5px);
}

.skill-card-img-wrapper {
    height: 180px;
    background: #e2e8f0;
    position: relative;
    overflow: hidden;
}

.skill-card-img-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.skill-badge {
    position: absolute;
    top: 15px;
    left: 15px;
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    background: var(--gold-light);
    color: var(--accent-gold);
}

/* YouTube Playlists integration styles */
.youtube-section {
    margin: 4rem 0;
    text-align: center;
    background: var(--card-bg);
    border-radius: 30px;
    padding: 3rem;
    box-shadow: var(--shadow-3d-out);
    border: 1px solid var(--border-color);
}

.yt-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1rem;
    margin-top: 2rem;
}

.yt-btn {
    text-decoration: none;
    padding: 12px 25px;
    border-radius: 12px;
    font-weight: 700;
    color: white;
    background: var(--accent-gold);
    display: inline-block;
    transition: transform 0.2s ease, filter 0.2s ease;
}

.yt-btn:hover {
    transform: scale(1.05);
    filter: brightness(1.1);
}