/* ============================================
   OAJH Dhatu Presentation Styles
   Modern, Animated, Professional Design
   ============================================ */

/* CSS Variables */
:root {
    --primary-gold: #D4AF37;
    --primary-saffron: #FF9933;
    --primary-teal: #138808;
    --dark-bg: #1a1a2e;
    --light-bg: #f8f9fa;
    --text-dark: #2c3e50;
    --text-light: #ffffff;
    --accent-warm: #e67e22;
    --accent-cool: #3498db;
    --gradient-1: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
    --gradient-2: linear-gradient(135deg, #2d132c 0%, #801336 50%, #c72c41 100%);
    --gradient-3: linear-gradient(135deg, #1b262c 0%, #0f4c75 50%, #3282b8 100%);
    --gradient-4: linear-gradient(135deg, #2c3e50 0%, #34495e 50%, #5d6d7e 100%);
    --gradient-5: linear-gradient(135deg, #1e3c72 0%, #2a5298 50%, #7e8ba3 100%);
    --gradient-6: linear-gradient(135deg, #134e5e 0%, #71b280 50%, #a8e6cf 100%);
    --gradient-7: linear-gradient(135deg, #2c3e50 0%, #4ca1af 50%, #c4e0e5 100%);
    --gradient-8: linear-gradient(135deg, #1a1a2e 0%, #4a4e69 50%, #9a8c98 100%);
    --gradient-9: linear-gradient(135deg, #2d3436 0%, #636e72 50%, #b2bec3 100%);
    --gradient-10: linear-gradient(135deg, #1e272e 0%, #485563 50%, #5c6b73 100%);
    --gradient-11: linear-gradient(135deg, #0c2461 0%, #1e3799 50%, #4a69bd 100%);
    --gradient-12: linear-gradient(135deg, #2c3e50 0%, #8e44ad 50%, #9b59b6 100%);
    --gradient-13: linear-gradient(135deg, #1a1a2e 0%, #533483 50%, #e94560 100%);
    --gradient-14: linear-gradient(135deg, #2d3436 0%, #636e72 100%);
    --font-display: 'Playfair Display', serif;
    --font-body: 'Inter', sans-serif;
    --font-sanskrit: 'Noto Sans Devanagari', sans-serif;
    --transition-smooth: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-bounce: all 0.5s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-body);
    background: var(--dark-bg);
    color: var(--text-light);
    overflow-x: hidden;
    line-height: 1.6;
}

/* Navigation Bar */
.nav-bar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 60px;
    background: rgba(26, 26, 46, 0.95);
    backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 2rem;
    z-index: 1000;
    border-bottom: 1px solid rgba(212, 175, 55, 0.3);
}

.nav-brand {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-gold);
    letter-spacing: 2px;
}

.nav-progress {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: rgba(255, 255, 255, 0.1);
}

.progress-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-gold), var(--primary-saffron));
    width: 0%;
    transition: width 0.3s ease;
}

.nav-controls {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.nav-btn {
    background: transparent;
    border: 1px solid rgba(212, 175, 55, 0.5);
    color: var(--primary-gold);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    transition: var(--transition-smooth);
    display: flex;
    align-items: center;
    justify-content: center;
}

.nav-btn:hover {
    background: var(--primary-gold);
    color: var(--dark-bg);
    transform: scale(1.1);
}

.slide-counter {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.7);
    min-width: 60px;
    text-align: center;
}

/* Slide Container */
.slide-container {
    position: relative;
    width: 100%;
    height: 100vh;
    overflow: hidden;
}

/* Individual Slides */
.slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    visibility: hidden;
    transform: translateY(30px);
    transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
    overflow-y: auto;
    padding-top: 60px;
}

.slide.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

/* Slide Backgrounds */
.slide-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    transition: opacity 1s ease;
}

.title-bg {
    background: var(--gradient-1);
}

.gradient-bg-1 { background: var(--gradient-1); }
.gradient-bg-2 { background: var(--gradient-2); }
.gradient-bg-3 { background: var(--gradient-3); }
.gradient-bg-4 { background: var(--gradient-4); }
.gradient-bg-5 { background: var(--gradient-5); }
.gradient-bg-6 { background: var(--gradient-6); }
.gradient-bg-7 { background: var(--gradient-7); }
.gradient-bg-8 { background: var(--gradient-8); }
.gradient-bg-9 { background: var(--gradient-9); }
.gradient-bg-10 { background: var(--gradient-10); }
.gradient-bg-11 { background: var(--gradient-11); }
.gradient-bg-12 { background: var(--gradient-12); }
.gradient-bg-13 { background: var(--gradient-13); }
.gradient-bg-14 { background: var(--gradient-14); }

/* Slide Content */
.slide-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 3rem;
    min-height: calc(100vh - 60px);
    display: flex;
    flex-direction: column;
}

/* Title Slide */
.title-slide {
    justify-content: center;
    align-items: center;
    text-align: center;
    min-height: calc(100vh - 60px);
}

.title-eyebrow {
    font-size: 1rem;
    letter-spacing: 4px;
    text-transform: uppercase;
    color: var(--primary-saffron);
    margin-bottom: 1rem;
    opacity: 0;
    animation: fadeInUp 1s ease 0.3s forwards;
}

.main-title {
    font-family: var(--font-display);
    font-size: 6rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-gold), var(--primary-saffron));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
    opacity: 0;
    animation: fadeInUp 1s ease 0.5s forwards;
    text-shadow: 0 0 60px rgba(212, 175, 55, 0.3);
}

.subtitle {
    font-size: 1.8rem;
    font-weight: 300;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 2rem;
    opacity: 0;
    animation: fadeInUp 1s ease 0.7s forwards;
}

.sanskrit-quote {
    margin: 2rem 0;
    padding: 2rem;
    border: 2px solid rgba(212, 175, 55, 0.3);
    border-radius: 10px;
    background: rgba(0, 0, 0, 0.2);
    opacity: 0;
    animation: fadeInUp 1s ease 0.9s forwards;
}

.shloka {
    font-family: var(--font-sanskrit);
    font-size: 1.5rem;
    color: var(--primary-gold);
    margin-bottom: 0.5rem;
}

.translation {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.7);
    font-style: italic;
}

.credits-box {
    display: flex;
    gap: 3rem;
    margin-top: 2rem;
    opacity: 0;
    animation: fadeInUp 1s ease 1.1s forwards;
}

.credit-item {
    text-align: center;
}

.credit-item .label {
    display: block;
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.5);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 0.3rem;
}

.credit-item .value {
    font-size: 1.1rem;
    color: var(--primary-gold);
    font-weight: 600;
}

.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    opacity: 0;
    animation: fadeInUp 1s ease 1.3s forwards;
}

.scroll-indicator span {
    display: block;
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.5);
    margin-bottom: 0.5rem;
}

.scroll-indicator i {
    color: var(--primary-gold);
    font-size: 1.5rem;
}

.bounce {
    animation: bounce 2s infinite;
}

/* Section Titles */
.section-title {
    font-family: var(--font-display);
    font-size: 3rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 0.5rem;
    background: linear-gradient(135deg, var(--primary-gold), #fff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    text-align: center;
    color: rgba(255, 255, 255, 0.7);
    font-size: 1.1rem;
    margin-bottom: 3rem;
}

/* Index Grid */
.index-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-top: 2rem;
}

.index-item {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(212, 175, 55, 0.2);
    border-radius: 10px;
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    cursor: pointer;
    transition: var(--transition-smooth);
}

.index-item:hover {
    background: rgba(212, 175, 55, 0.1);
    border-color: var(--primary-gold);
    transform: translateX(10px);
}

.index-num {
    font-family: var(--font-display);
    font-size: 1.5rem;
    color: var(--primary-gold);
    font-weight: 700;
}

.index-text {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.9);
}

/* Content Grid */
.content-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    flex: 1;
}

.lead-text {
    font-size: 1.3rem;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 2rem;
}

.key-points {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 2rem;
}

.point {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 8px;
    border-left: 3px solid var(--primary-gold);
}

.point i {
    color: var(--primary-gold);
    font-size: 1.2rem;
}

.shloka-box {
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(212, 175, 55, 0.3);
    border-radius: 10px;
    padding: 1.5rem;
    margin-top: 2rem;
}

.shloka-text {
    font-family: var(--font-sanskrit);
    font-size: 1.3rem;
    color: var(--primary-gold);
    margin-bottom: 0.5rem;
}

.shloka-meaning {
    font-size: 0.95rem;
    color: rgba(255, 255, 255, 0.7);
    font-style: italic;
}

cite {
    display: block;
    margin-top: 0.5rem;
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.5);
}

/* Ojas Visual */
.ojas-visual {
    position: relative;
    width: 300px;
    height: 300px;
    margin: 0 auto;
}

.ojas-core {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 120px;
    height: 120px;
    background: radial-gradient(circle, var(--primary-gold), #b8860b);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 0 60px rgba(212, 175, 55, 0.6);
    animation: pulse-glow 3s infinite;
}

.ojas-core span {
    font-family: var(--font-sanskrit);
    font-size: 1.5rem;
    color: #fff;
    font-weight: 600;
}

.ojas-rays {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 280px;
    height: 280px;
    border: 2px solid rgba(212, 175, 55, 0.3);
    border-radius: 50%;
    animation: rotate 20s linear infinite;
}

.ojas-rays::before,
.ojas-rays::after {
    content: '';
    position: absolute;
    border: 1px solid rgba(212, 175, 55, 0.2);
    border-radius: 50%;
}

.ojas-rays::before {
    top: 20px;
    left: 20px;
    right: 20px;
    bottom: 20px;
}

.ojas-rays::after {
    top: 40px;
    left: 40px;
    right: 40px;
    bottom: 40px;
}

/* Etymology Grid */
.etymology-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-bottom: 3rem;
}

.etym-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(212, 175, 55, 0.2);
    border-radius: 15px;
    padding: 2rem;
    text-align: center;
    transition: var(--transition-smooth);
}

.etym-card:hover {
    transform: translateY(-10px);
    border-color: var(--primary-gold);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.etym-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.etym-card h3 {
    color: var(--primary-gold);
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

.etym-card p {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.6;
}

/* Tables */
.definition-table,
.comparison-table,
.herbs-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 2rem;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 10px;
    overflow: hidden;
}

.definition-table th,
.comparison-table th,
.herbs-table th {
    background: rgba(212, 175, 55, 0.2);
    color: var(--primary-gold);
    padding: 1rem;
    text-align: left;
    font-weight: 600;
}

.definition-table td,
.comparison-table td,
.herbs-table td {
    padding: 1rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.9);
}

.definition-table tr:last-child td,
.comparison-table tr:last-child td,
.herbs-table tr:last-child td {
    border-bottom: none;
}

.definition-table tr:hover,
.comparison-table tr:hover,
.herbs-table tr:hover {
    background: rgba(212, 175, 55, 0.05);
}

/* Location Container */
.location-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.body-diagram {
    position: relative;
    height: 500px;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 20px;
    border: 2px solid rgba(212, 175, 55, 0.2);
}

.location-point {
    position: absolute;
    cursor: pointer;
}

.location-point.heart {
    top: 40%;
    left: 50%;
    transform: translateX(-50%);
}

.location-point.brain {
    top: 10%;
    left: 50%;
    transform: translateX(-50%);
}

.location-point.marrow {
    top: 70%;
    left: 30%;
}

.location-point.reproductive {
    top: 75%;
    left: 50%;
    transform: translateX(-50%);
}

.pulse {
    display: block;
    width: 30px;
    height: 30px;
    background: var(--primary-gold);
    border-radius: 50%;
    animation: pulse-ring 2s infinite;
}

.location-point label {
    position: absolute;
    top: 40px;
    left: 50%;
    transform: translateX(-50%);
    white-space: nowrap;
    background: rgba(0, 0, 0, 0.7);
    padding: 0.5rem 1rem;
    border-radius: 5px;
    font-size: 0.85rem;
    color: var(--primary-gold);
}

.location-info {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.info-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(212, 175, 55, 0.2);
    border-radius: 10px;
    padding: 1.5rem;
    opacity: 0.5;
    transition: var(--transition-smooth);
}

.info-card.active {
    opacity: 1;
    border-color: var(--primary-gold);
    background: rgba(212, 175, 55, 0.1);
}

.info-card h3 {
    color: var(--primary-gold);
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.info-card p {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.6;
}

.shloka-inline {
    font-family: var(--font-sanskrit);
    color: var(--primary-saffron);
    margin-top: 1rem;
    font-size: 1.1rem;
}

/* Types Container */
.types-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.type-card {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 20px;
    overflow: hidden;
    border: 2px solid transparent;
    transition: var(--transition-smooth);
}

.type-card:hover {
    transform: translateY(-10px);
}

.type-card.primary {
    border-color: rgba(212, 175, 55, 0.5);
}

.type-card.secondary {
    border-color: rgba(255, 153, 51, 0.5);
}

.type-header {
    padding: 1.5rem;
    background: rgba(0, 0, 0, 0.3);
    position: relative;
}

.type-number {
    position: absolute;
    top: 1rem;
    right: 1rem;
    font-family: var(--font-display);
    font-size: 3rem;
    color: rgba(255, 255, 255, 0.1);
    font-weight: 700;
}

.type-header h3 {
    color: var(--primary-gold);
    font-size: 1.5rem;
    margin-bottom: 0.3rem;
}

.type-label {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.6);
}

.type-content {
    padding: 1.5rem;
}

.type-visual {
    text-align: center;
    margin-bottom: 1.5rem;
}

.ojas-icon {
    font-size: 4rem;
    display: inline-block;
    animation: float 3s ease-in-out infinite;
}

.type-features {
    list-style: none;
    margin-bottom: 1.5rem;
}

.type-features li {
    padding: 0.5rem 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.9);
}

.type-features li:last-child {
    border-bottom: none;
}

.type-features strong {
    color: var(--primary-gold);
}

.type-shloka {
    background: rgba(0, 0, 0, 0.3);
    padding: 1rem;
    border-radius: 8px;
    text-align: center;
}

.type-shloka p {
    font-family: var(--font-sanskrit);
    color: var(--primary-gold);
    margin-bottom: 0.3rem;
}

.type-shloka span {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.6);
}

/* Functions Grid */
.functions-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-bottom: 3rem;
}

.function-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(212, 175, 55, 0.2);
    border-radius: 15px;
    padding: 2rem;
    text-align: center;
    transition: var(--transition-smooth);
}

.function-card:hover {
    transform: translateY(-10px);
    border-color: var(--primary-gold);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.function-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-gold), var(--primary-saffron));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
}

.function-icon i {
    font-size: 2rem;
    color: #fff;
}

.function-card h3 {
    color: var(--primary-gold);
    margin-bottom: 0.5rem;
}

.function-card p {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.95rem;
    margin-bottom: 0.5rem;
}

.sanskrit {
    font-family: var(--font-sanskrit);
    color: var(--primary-saffron);
    font-size: 0.9rem;
}

.importance-banner {
    background: linear-gradient(135deg, rgba(212, 175, 55, 0.2), rgba(255, 153, 51, 0.2));
    border: 2px solid var(--primary-gold);
    border-radius: 15px;
    padding: 2rem;
    text-align: center;
}

.banner-content i {
    font-size: 2rem;
    color: var(--primary-gold);
    margin-bottom: 1rem;
}

.banner-content p {
    font-size: 1.2rem;
    font-style: italic;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 1rem;
}

.banner-content cite {
    color: var(--primary-saffron);
}

/* Immunity Container */
.immunity-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.immunity-theory h3,
.immunity-mechanism h3 {
    color: var(--primary-gold);
    margin-bottom: 1.5rem;
    font-size: 1.3rem;
}

.immunity-theory p {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 1.5rem;
}

.correlation-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.correlation-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: rgba(255, 255, 255, 0.05);
    padding: 1rem;
    border-radius: 8px;
}

.corr-ayurveda {
    color: var(--primary-gold);
    font-weight: 600;
    flex: 1;
}

.corr-modern {
    color: rgba(255, 255, 255, 0.9);
    flex: 1;
    text-align: right;
}

.correlation-item i {
    color: var(--primary-saffron);
    margin: 0 1rem;
}

.mechanism-flow {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.flow-step {
    display: flex;
    align-items: center;
    gap: 1rem;
    background: rgba(255, 255, 255, 0.05);
    padding: 1rem;
    border-radius: 8px;
    border-left: 3px solid var(--primary-gold);
}

.step-num {
    width: 30px;
    height: 30px;
    background: var(--primary-gold);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    color: #000;
}

.step-text {
    color: rgba(255, 255, 255, 0.9);
}

.video-section h3 {
    color: var(--primary-gold);
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.video-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

.video-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(212, 175, 55, 0.2);
    border-radius: 10px;
    padding: 1.5rem;
    text-align: center;
    text-decoration: none;
    color: inherit;
    transition: var(--transition-smooth);
}

.video-card:hover {
    border-color: var(--primary-gold);
    transform: translateY(-5px);
}

.video-thumb {
    width: 60px;
    height: 60px;
    background: rgba(255, 0, 0, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
}

.video-thumb i {
    font-size: 1.5rem;
    color: #ff0000;
}

.video-card span {
    color: rgba(255, 255, 255, 0.9);
}

/* Factors Container */
.factors-container {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 2rem;
    align-items: start;
}

.factors-column h3 {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
    font-size: 1.2rem;
}

.factors-column.positive h3 {
    color: #2ecc71;
}

.factors-column.negative h3 {
    color: #e74c3c;
}

.factor-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.factor-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    background: rgba(255, 255, 255, 0.05);
    padding: 1rem;
    border-radius: 8px;
    transition: var(--transition-smooth);
}

.factor-item:hover {
    transform: translateX(10px);
}

.factors-column.positive .factor-item:hover {
    border-left: 3px solid #2ecc71;
}

.factors-column.negative .factor-item:hover {
    border-left: 3px solid #e74c3c;
}

.factor-item i {
    font-size: 1.5rem;
    width: 40px;
    text-align: center;
}

.factors-column.positive .factor-item i {
    color: #2ecc71;
}

.factors-column.negative .factor-item i {
    color: #e74c3c;
}

.factor-item h4 {
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 0.2rem;
    font-size: 1rem;
}

.factor-item p {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9rem;
}

.factors-divider {
    display: flex;
    align-items: center;
    justify-content: center;
}

.balance-scale {
    text-align: center;
}

.scale-center {
    font-size: 3rem;
    margin: 1rem 0;
}

/* Signs Container */
.signs-container {
    display: flex;
    flex-direction: column;
    gap: 3rem;
}

.signs-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.sign-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(212, 175, 55, 0.2);
    border-radius: 15px;
    padding: 2rem;
}

.sign-card h3 {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--primary-gold);
    margin-bottom: 1.5rem;
}

.sign-card ul {
    list-style: none;
}

.sign-card li {
    padding: 0.5rem 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.8);
    position: relative;
    padding-left: 1.5rem;
}

.sign-card li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--primary-saffron);
}

.ojas-level-indicator {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 15px;
    padding: 2rem;
}

.ojas-level-indicator h3 {
    color: var(--primary-gold);
    margin-bottom: 1.5rem;
    text-align: center;
}

.level-bar {
    display: flex;
    height: 40px;
    border-radius: 20px;
    overflow: hidden;
    margin-bottom: 2rem;
}

.level-marker {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.85rem;
    font-weight: 600;
    color: #fff;
}

.level-marker.optimal { background: #27ae60; }
.level-marker.moderate { background: #f1c40f; }
.level-marker.low { background: #e67e22; }
.level-marker.depleted { background: #e74c3c; }

.level-descriptions {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

.level-desc {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: rgba(255, 255, 255, 0.8);
}

.level-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.level-dot.green { background: #27ae60; }
.level-dot.yellow { background: #f1c40f; }
.level-dot.orange { background: #e67e22; }
.level-dot.red { background: #e74c3c; }

/* Enhancement Tabs */
.enhancement-tabs {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 15px;
    overflow: hidden;
}

.tab-buttons {
    display: flex;
    border-bottom: 1px solid rgba(212, 175, 55, 0.2);
}

.tab-btn {
    flex: 1;
    padding: 1rem;
    background: transparent;
    border: none;
    color: rgba(255, 255, 255, 0.6);
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition-smooth);
}

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

.tab-btn.active {
    color: var(--primary-gold);
    border-bottom: 3px solid var(--primary-gold);
}

.tab-content {
    display: none;
    padding: 2rem;
}

.tab-content.active {
    display: block;
    animation: fadeIn 0.5s ease;
}

.tab-content h3 {
    color: var(--primary-gold);
    margin-bottom: 1.5rem;
}

.diet-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.diet-category {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 10px;
    padding: 1.5rem;
}

.diet-category h4 {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--primary-saffron);
    margin-bottom: 1rem;
    font-size: 1rem;
}

.diet-category ul {
    list-style: none;
}

.diet-category li {
    padding: 0.3rem 0;
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.9rem;
}

.diet-shloka {
    margin-top: 2rem;
}

.lifestyle-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.lifestyle-item {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 10px;
    padding: 1.5rem;
    text-align: center;
    transition: var(--transition-smooth);
}

.lifestyle-item:hover {
    transform: translateY(-5px);
    border: 1px solid var(--primary-gold);
}

.lifestyle-item i {
    font-size: 2rem;
    color: var(--primary-gold);
    margin-bottom: 1rem;
}

.lifestyle-item h4 {
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 0.5rem;
}

.lifestyle-item p {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9rem;
}

.herbs-table-container {
    overflow-x: auto;
}

.therapy-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

.therapy-card {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 10px;
    padding: 1.5rem;
    border-left: 3px solid var(--primary-gold);
}

.therapy-card h4 {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--primary-gold);
    margin-bottom: 0.5rem;
}

.therapy-card p {
    color: rgba(255, 255, 255, 0.7);
}

/* Science Container */
.science-container {
    display: flex;
    flex-direction: column;
    gap: 3rem;
}

.science-intro {
    text-align: center;
}

.science-intro p {
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.9);
}

.science-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.science-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(212, 175, 55, 0.2);
    border-radius: 15px;
    padding: 2rem;
    text-align: center;
    transition: var(--transition-smooth);
}

.science-card:hover {
    transform: translateY(-10px);
    border-color: var(--primary-gold);
}

.science-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.science-card h3 {
    color: var(--primary-gold);
    margin-bottom: 1rem;
}

.science-card p {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 1rem;
}

.science-card ul {
    list-style: none;
    text-align: left;
}

.science-card li {
    padding: 0.3rem 0;
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.9rem;
    position: relative;
    padding-left: 1.2rem;
}

.science-card li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--primary-saffron);
}

.research-section h3 {
    color: var(--primary-gold);
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.research-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.research-card {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 10px;
    padding: 1.5rem;
    border-left: 3px solid var(--primary-gold);
}

.research-card .journal {
    display: block;
    color: var(--primary-saffron);
    font-size: 0.85rem;
    margin-bottom: 0.5rem;
}

.research-card p {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.95rem;
}

/* Clinical Container */
.clinical-container {
    display: flex;
    flex-direction: column;
    gap: 3rem;
}

.conditions-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.condition-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(212, 175, 55, 0.2);
    border-radius: 10px;
    padding: 1.5rem;
    transition: var(--transition-smooth);
}

.condition-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-gold);
}

.condition-card h3 {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--primary-gold);
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
}

.condition-card p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9rem;
}

.case-study {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 15px;
    padding: 2rem;
}

.case-study h3 {
    color: var(--primary-gold);
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

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

.case-before,
.case-after {
    background: rgba(0, 0, 0, 0.2);
    border-radius: 10px;
    padding: 1.5rem;
}

.case-before h4 {
    color: #e74c3c;
    margin-bottom: 1rem;
}

.case-after h4 {
    color: #27ae60;
    margin-bottom: 1rem;
}

.case-before ul,
.case-after ul {
    list-style: none;
}

.case-before li,
.case-after li {
    padding: 0.3rem 0;
    color: rgba(255, 255, 255, 0.8);
    position: relative;
    padding-left: 1.2rem;
}

.case-before li::before {
    content: '×';
    position: absolute;
    left: 0;
    color: #e74c3c;
}

.case-after li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #27ae60;
}

.case-arrow {
    text-align: center;
}

.case-arrow i {
    font-size: 2rem;
    color: var(--primary-gold);
    display: block;
    margin-bottom: 0.5rem;
}

.case-arrow span {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.6);
}

/* Summary Container */
.summary-container {
    display: flex;
    flex-direction: column;
    gap: 3rem;
}

.key-takeaways h3 {
    color: var(--primary-gold);
    text-align: center;
    margin-bottom: 2rem;
    font-size: 1.8rem;
}

.takeaway-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.takeaway-item {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(212, 175, 55, 0.2);
    border-radius: 10px;
    padding: 1.5rem;
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    transition: var(--transition-smooth);
}

.takeaway-item:hover {
    border-color: var(--primary-gold);
    transform: translateY(-5px);
}

.takeaway-num {
    width: 40px;
    height: 40px;
    background: var(--primary-gold);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    color: #000;
    flex-shrink: 0;
}

.takeaway-item p {
    color: rgba(255, 255, 255, 0.9);
    line-height: 1.6;
}

.conclusion-quote {
    background: linear-gradient(135deg, rgba(212, 175, 55, 0.2), rgba(255, 153, 51, 0.2));
    border: 2px solid var(--primary-gold);
    border-radius: 15px;
    padding: 3rem;
    text-align: center;
}

.conclusion-quote i {
    font-size: 2rem;
    color: var(--primary-gold);
    margin-bottom: 1rem;
}

.conclusion-quote .shloka {
    font-family: var(--font-sanskrit);
    font-size: 1.8rem;
    color: var(--primary-gold);
    margin-bottom: 0.5rem;
}

.conclusion-quote .translation {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 1rem;
}

.conclusion-quote cite {
    color: var(--primary-saffron);
}

/* References Container */
.references-container {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 3rem;
    margin-bottom: 3rem;
}

.ref-column h3 {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--primary-gold);
    margin-bottom: 1.5rem;
    font-size: 1.2rem;
}

.ref-list {
    list-style: none;
}

.ref-list li {
    padding: 0.5rem 0;
    color: rgba(255, 255, 255, 0.8);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.ref-list li:last-child {
    border-bottom: none;
}

.video-refs a {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: var(--transition-smooth);
}

.video-refs a:hover {
    color: var(--primary-gold);
}

.video-refs i {
    color: #ff0000;
}

.final-credits {
    display: flex;
    justify-content: center;
    gap: 4rem;
    margin-bottom: 3rem;
    padding: 2rem;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 10px;
}

.credit-block {
    text-align: center;
}

.credit-label {
    display: block;
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.5);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 0.3rem;
}

.credit-value {
    font-size: 1.3rem;
    color: var(--primary-gold);
    font-weight: 600;
}

.thank-you {
    text-align: center;
}

.thank-you h2 {
    font-family: var(--font-display);
    font-size: 4rem;
    background: linear-gradient(135deg, var(--primary-gold), var(--primary-saffron));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 1rem;
}

.thank-you p {
    font-size: 1.5rem;
    color: rgba(255, 255, 255, 0.7);
}

/* Keyboard Hint */
.keyboard-hint {
    position: fixed;
    bottom: 1rem;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(0, 0, 0, 0.7);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.6);
    z-index: 100;
}

.keyboard-hint kbd {
    background: rgba(255, 255, 255, 0.2);
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    font-family: monospace;
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(-10px);
    }
    60% {
        transform: translateY(-5px);
    }
}

@keyframes pulse-glow {
    0%, 100% {
        box-shadow: 0 0 60px rgba(212, 175, 55, 0.6);
    }
    50% {
        box-shadow: 0 0 100px rgba(212, 175, 55, 0.9);
    }
}

@keyframes pulse-ring {
    0% {
        transform: scale(1);
        opacity: 1;
    }
    100% {
        transform: scale(2);
        opacity: 0;
    }
}

@keyframes rotate {
    from { transform: translate(-50%, -50%) rotate(0deg); }
    to { transform: translate(-50%, -50%) rotate(360deg); }
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

/* Responsive Design */
@media (max-width: 1200px) {
    .main-title {
        font-size: 4rem;
    }
    
    .content-grid,
    .location-container,
    .types-container,
    .immunity-container {
        grid-template-columns: 1fr;
    }
    
    .index-grid,
    .functions-grid,
    .science-grid,
    .conditions-grid,
    .takeaway-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .diet-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-bar {
        padding: 0 1rem;
    }
    
    .slide-content {
        padding: 1.5rem;
    }
    
    .main-title {
        font-size: 3rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .credits-box {
        flex-direction: column;
        gap: 1rem;
    }
    
    .index-grid,
    .etymology-grid,
    .functions-grid,
    .signs-grid,
    .science-grid,
    .conditions-grid,
    .takeaway-grid,
    .diet-grid,
    .lifestyle-grid,
    .therapy-grid,
    .research-cards,
    .references-container {
        grid-template-columns: 1fr;
    }
    
    .factors-container {
        grid-template-columns: 1fr;
    }
    
    .factors-divider {
        order: -1;
    }
    
    .case-content {
        grid-template-columns: 1fr;
    }
    
    .case-arrow {
        transform: rotate(90deg);
    }
    
    .final-credits {
        flex-direction: column;
        gap: 1.5rem;
    }
}

/* Print Styles */
@media print {
    .nav-bar,
    .keyboard-hint {
        display: none;
    }
    
    .slide {
        position: relative;
        opacity: 1;
        visibility: visible;
        page-break-after: always;
    }
}