/* Fresh Light Green Agriculture Theme */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Light Green Color Palette */
    --bg-primary: #F6FFF8;
    --bg-secondary: #FFFFFF;
    --bg-gradient-start: #F0FDF4;
    --bg-gradient-end: #F6FFF8;
    
    /* Green Accents */
    --accent-primary: #22C55E;
    --accent-secondary: #4ADE80;
    --accent-light: #86EFAC;
    --accent-subtle: rgba(34, 197, 94, 0.08);
    --accent-glow: rgba(34, 197, 94, 0.15);
    
    /* Text Colors */
    --text-primary: #0F172A;
    --text-secondary: #64748B;
    --text-tertiary: #94A3B8;
    
    /* Card & Surface */
    --card-bg: #FFFFFF;
    --card-hover: #FAFAFA;
    --card-border: rgba(34, 197, 94, 0.1);
    
    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.05), 0 2px 4px rgba(0, 0, 0, 0.03);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.08), 0 4px 6px rgba(0, 0, 0, 0.04);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.1), 0 10px 10px rgba(0, 0, 0, 0.04);
    
    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --radius-2xl: 24px;
    
    /* Spacing */
    --space-xs: 8px;
    --space-sm: 12px;
    --space-md: 16px;
    --space-lg: 24px;
    --space-xl: 32px;
    --space-2xl: 48px;
    --space-3xl: 64px;
    
    /* Typography */
    --font-system: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Inter', system-ui, sans-serif;
    --font-body: -apple-system, BlinkMacSystemFont, 'SF Pro Text', 'Inter', system-ui, sans-serif;
    
    /* Transitions */
    --transition-base: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
    font-family: var(--font-body);
    background: var(--bg-primary);
    color: var(--text-primary);
    overflow: hidden;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Presentation Container */
.presentation-container {
    width: 100vw;
    height: 100vh;
    position: relative;
    overflow: hidden;
}

/* Slide Styles */
.slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    align-items: center;
    justify-content: center;
}

.slide.active {
    opacity: 1;
    visibility: visible;
    z-index: 1;
}

.slide-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    background: linear-gradient(135deg, var(--bg-gradient-start) 0%, var(--bg-gradient-end) 100%);
}

.slide-content {
    position: relative;
    z-index: 1;
    width: 90%;
    max-width: 1400px;
    height: 90%;
    padding: 80px;
    animation: fadeInUp 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Hide Navigation UI */
.slide-nav {
    display: none;
}

/* Typography */
.slide-title {
    font-family: var(--font-system);
    font-size: 64px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 48px;
    letter-spacing: -0.02em;
    line-height: 1.1;
}

/* Slide 1: Title Slide */
.title-slide {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    gap: 40px;
}

.title-content {
    max-width: 1000px;
}

.team-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    font-weight: 600;
    color: var(--accent-primary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 32px;
    background: var(--accent-subtle);
    padding: 10px 20px;
    border-radius: 20px;
}

.team-badge i {
    width: 16px;
    height: 16px;
    color: var(--accent-primary);
}

.main-title {
    font-family: var(--font-system);
    font-size: 88px;
    font-weight: 800;
    line-height: 1.05;
    letter-spacing: -0.03em;
    margin-bottom: 24px;
}

.title-line {
    display: block;
    color: var(--text-primary);
}

.title-subtitle {
    display: block;
    font-size: 48px;
    font-weight: 600;
    color: var(--accent-primary);
    margin-top: 16px;
}

.tagline {
    font-size: 28px;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 48px;
}

.title-icons {
    display: flex;
    gap: 48px;
    justify-content: center;
    margin-top: 64px;
}

.icon-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}

.icon-item i {
    width: 56px;
    height: 56px;
    color: var(--accent-primary);
    background: var(--accent-subtle);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 12px;
}

.icon-item span {
    font-size: 15px;
    color: var(--text-secondary);
    font-weight: 500;
}

.agriculture-visual {
    display: none;
}

/* Slide 2: Problem Statement */
.problem-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    margin-bottom: 64px;
}

.stat-card {
    background: var(--card-bg);
    padding: 40px 32px;
    text-align: center;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    transition: var(--transition-base);
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.highlight-card {
    background: linear-gradient(135deg, var(--accent-subtle), var(--card-bg));
    border: 2px solid var(--accent-primary);
}

.stat-icon {
    display: none;
}

.stat-value {
    font-family: var(--font-system);
    font-size: 72px;
    font-weight: 800;
    color: var(--accent-primary);
    margin-bottom: 12px;
    letter-spacing: -0.02em;
}

.stat-label {
    font-size: 18px;
    color: var(--text-secondary);
    font-weight: 500;
    line-height: 1.4;
}

.problem-list h3 {
    font-family: var(--font-system);
    font-size: 36px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 32px;
    letter-spacing: -0.01em;
}

.challenge-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.challenge-item {
    display: flex;
    align-items: center;
    gap: 16px;
    background: var(--card-bg);
    padding: 20px 24px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-base);
}

.challenge-item:hover {
    transform: translateX(4px);
    box-shadow: var(--shadow-md);
}

.challenge-item i {
    width: 24px;
    height: 24px;
    color: var(--accent-primary);
    min-width: 24px;
}

.challenge-item span {
    font-size: 17px;
    color: var(--text-secondary);
    font-weight: 500;
}

/* Slide 3: Solution */
.solution-layout {
    display: flex;
    gap: 80px;
    align-items: center;
}

.solution-text {
    flex: 1;
}

.solution-intro {
    font-size: 24px;
    color: var(--text-secondary);
    margin-bottom: 48px;
    line-height: 1.6;
    font-weight: 500;
}

.feature-highlights {
    display: flex;
    flex-direction: column;
    gap: 32px;
}

.highlight-item {
    display: flex;
    gap: 20px;
    align-items: flex-start;
    background: var(--card-bg);
    padding: 24px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-base);
}

.highlight-item:hover {
    transform: translateX(8px);
    box-shadow: var(--shadow-md);
}

.highlight-icon {
    width: 48px;
    height: 48px;
    min-width: 48px;
    background: var(--accent-subtle);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
}

.highlight-icon i {
    width: 28px;
    height: 28px;
    color: var(--accent-primary);
}

.highlight-text h4 {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.highlight-text p {
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 1.5;
}

.phone-mockup {
    width: 400px;
    height: 600px;
    background: var(--card-bg);
    border-radius: 40px;
    box-shadow: var(--shadow-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    border: 12px solid var(--text-primary);
    position: relative;
    overflow: hidden;
}

.phone-mockup::before {
    content: '';
    position: absolute;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    width: 120px;
    height: 24px;
    background: var(--text-primary);
    border-radius: 12px;
}

.mockup-content {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--bg-gradient-start), var(--bg-gradient-end));
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 60px 32px 32px;
}

.mockup-icon {
    width: 120px;
    height: 120px;
    background: var(--accent-primary);
    border-radius: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
    box-shadow: var(--shadow-lg);
}

.mockup-icon i {
    width: 72px;
    height: 72px;
    color: white;
}

.mockup-text {
    text-align: center;
}

.mockup-text h3 {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.mockup-text p {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* Slide 4: How It Works */
.workflow-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 40px;
    margin-top: 64px;
}

.workflow-step {
    flex: 1;
    text-align: center;
    background: var(--card-bg);
    padding: 40px 32px;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    transition: var(--transition-base);
    position: relative;
}

.workflow-step:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.workflow-step::after {
    content: '→';
    position: absolute;
    right: -32px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 32px;
    color: var(--accent-primary);
    font-weight: 700;
}

.workflow-step:last-child::after {
    display: none;
}

.step-number {
    width: 56px;
    height: 56px;
    background: var(--accent-primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    font-weight: 700;
    margin: 0 auto 24px;
    box-shadow: var(--shadow-md);
}

.step-icon {
    width: 80px;
    height: 80px;
    background: var(--accent-subtle);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
}

.step-icon i {
    width: 48px;
    height: 48px;
    color: var(--accent-primary);
}

.workflow-step h3 {
    font-size: 22px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.workflow-step p {
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* Slide 5: AI Technology */
.tech-layout {
    display: flex;
    gap: 80px;
    align-items: center;
    margin-top: 64px;
}

.tech-diagram {
    flex: 1;
    background: var(--card-bg);
    padding: 48px;
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-lg);
}

.model-visual {
    text-align: center;
    margin-bottom: 40px;
}

.model-icon {
    width: 120px;
    height: 120px;
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
    box-shadow: var(--shadow-lg);
}

.model-icon i {
    width: 72px;
    height: 72px;
    color: white;
}

.model-name {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.model-desc {
    font-size: 16px;
    color: var(--text-secondary);
}

.tech-stats {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.tech-stat {
    background: var(--card-bg);
    padding: 28px 32px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    display: flex;
    align-items: center;
    gap: 20px;
    transition: var(--transition-base);
}

.tech-stat:hover {
    transform: translateX(8px);
    box-shadow: var(--shadow-lg);
}

.stat-icon-small {
    width: 48px;
    height: 48px;
    min-width: 48px;
    background: var(--accent-subtle);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
}

.stat-icon-small i {
    width: 28px;
    height: 28px;
    color: var(--accent-primary);
}

.stat-content h4 {
    font-size: 32px;
    font-weight: 700;
    color: var(--accent-primary);
    margin-bottom: 4px;
}

.stat-content p {
    font-size: 16px;
    color: var(--text-secondary);
}

/* Slide 6: Features */
.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    margin-top: 64px;
}

.feature-card {
    background: var(--card-bg);
    padding: 36px 28px;
    text-align: center;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    transition: var(--transition-base);
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.feature-icon {
    width: 72px;
    height: 72px;
    margin: 0 auto 20px;
    background: var(--accent-subtle);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
}

.feature-icon i {
    width: 40px;
    height: 40px;
    color: var(--accent-primary);
}

.feature-card h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.feature-card p {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* Slide 7: AI Chatbot */
.chatbot-layout {
    display: flex;
    gap: 80px;
    align-items: center;
    margin-top: 64px;
}

.chatbot-features {
    flex: 1;
}

.cb-features-list {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.cb-feature {
    display: flex;
    align-items: center;
    gap: 16px;
    background: var(--card-bg);
    padding: 20px 24px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-base);
}

.cb-feature:hover {
    transform: translateX(8px);
    box-shadow: var(--shadow-md);
}

.cb-feature i {
    width: 28px;
    height: 28px;
    color: var(--accent-primary);
    min-width: 28px;
}

.cb-feature span {
    font-size: 17px;
    color: var(--text-secondary);
    font-weight: 500;
}

.chat-mockup {
    width: 480px;
    background: var(--card-bg);
    border-radius: var(--radius-2xl);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--card-border);
}

.chat-header {
    background: var(--accent-primary);
    padding: 20px 24px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.chat-header i {
    width: 28px;
    height: 28px;
    color: white;
}

.chat-header span {
    font-weight: 600;
    color: white;
    font-size: 17px;
}

.chat-messages {
    padding: 24px;
    height: 420px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 16px;
    background: var(--bg-primary);
}

.message {
    max-width: 75%;
    padding: 14px 18px;
    border-radius: var(--radius-lg);
    font-size: 15px;
    line-height: 1.5;
}

.message.user {
    background: var(--accent-primary);
    color: white;
    align-self: flex-end;
    border-bottom-right-radius: 4px;
}

.message.bot {
    background: var(--card-bg);
    color: var(--text-primary);
    align-self: flex-start;
    border-bottom-left-radius: 4px;
    box-shadow: var(--shadow-sm);
}

/* Slide 8: Tech Stack */
.tech-stack-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 48px;
    margin-top: 64px;
}

.stack-category h3 {
    font-family: var(--font-system);
    font-size: 28px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 24px;
    letter-spacing: -0.01em;
}

.stack-items {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.stack-item {
    background: var(--card-bg);
    padding: 18px 24px;
    display: flex;
    align-items: center;
    gap: 16px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-base);
}

.stack-item:hover {
    transform: translateX(8px);
    box-shadow: var(--shadow-md);
}

.stack-item i {
    width: 24px;
    height: 24px;
    color: var(--accent-primary);
    min-width: 24px;
}

.stack-item span {
    font-size: 17px;
    color: var(--text-secondary);
    font-weight: 500;
}

.architecture-note {
    margin-top: 48px;
    background: var(--accent-subtle);
    padding: 24px 28px;
    border-radius: var(--radius-lg);
    border-left: 4px solid var(--accent-primary);
    display: flex;
    align-items: flex-start;
    gap: 16px;
}

.architecture-note i {
    width: 24px;
    height: 24px;
    color: var(--accent-primary);
    min-width: 24px;
    margin-top: 2px;
}

.architecture-note p {
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Slide 9: Impact */
.impact-layout {
    display: flex;
    gap: 80px;
    align-items: center;
    margin-top: 64px;
}

.impact-map {
    flex: 1;
}

.map-container {
    position: relative;
    width: 100%;
    height: 400px;
    background: var(--card-bg);
    border-radius: var(--radius-2xl);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.map-icon {
    width: 280px;
    height: 280px;
    color: var(--accent-subtle);
}

.impact-points {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.impact-point {
    position: absolute;
    width: 16px;
    height: 16px;
}

.pulse {
    width: 100%;
    height: 100%;
    background: var(--accent-primary);
    border-radius: 50%;
    animation: pulseEffect 2s ease-out infinite;
}

@keyframes pulseEffect {
    0% {
        transform: scale(1);
        opacity: 1;
    }
    100% {
        transform: scale(2.5);
        opacity: 0;
    }
}

.impact-stats {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.impact-card {
    background: var(--card-bg);
    padding: 28px 32px;
    display: flex;
    align-items: center;
    gap: 20px;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    transition: var(--transition-base);
}

.impact-card:hover {
    transform: translateX(8px);
    box-shadow: var(--shadow-lg);
}

.impact-icon {
    width: 56px;
    height: 56px;
    min-width: 56px;
    background: var(--accent-subtle);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
}

.impact-icon i {
    width: 32px;
    height: 32px;
    color: var(--accent-primary);
}

.impact-text h4 {
    font-size: 32px;
    font-weight: 700;
    color: var(--accent-primary);
    margin-bottom: 4px;
}

.impact-text p {
    font-size: 16px;
    color: var(--text-secondary);
}

/* Slide 10: Vision */
.vision-slide {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    gap: 48px;
}

.vision-quote {
    max-width: 900px;
}

.quote-text {
    font-family: var(--font-system);
    font-size: 56px;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.2;
    margin-bottom: 32px;
    letter-spacing: -0.02em;
}

.quote-highlight {
    color: var(--accent-primary);
}

.quote-author {
    font-size: 20px;
    color: var(--text-secondary);
    font-weight: 500;
}

.vision-cta {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 24px;
}

.cta-text {
    font-size: 24px;
    color: var(--text-secondary);
    font-weight: 500;
}

.qr-placeholder {
    width: 200px;
    height: 200px;
    background: var(--card-bg);
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
    border: 2px solid var(--accent-primary);
}

.qr-placeholder i {
    width: 120px;
    height: 120px;
    color: var(--accent-primary);
}

.thank-you {
    font-size: 32px;
    font-weight: 700;
    color: var(--text-primary);
    margin-top: 24px;
}

/* Responsive Design */
@media (max-width: 1200px) {
    .slide-content {
        padding: 60px;
    }
    
    .slide-title {
        font-size: 52px;
    }
    
    .main-title {
        font-size: 72px;
    }
}

@media (max-width: 768px) {
    .slide-content {
        padding: 40px;
    }
    
    .problem-grid,
    .features-grid,
    .tech-stack-grid {
        grid-template-columns: 1fr;
    }
    
    .workflow-container,
    .solution-layout,
    .tech-layout,
    .chatbot-layout,
    .impact-layout {
        flex-direction: column;
    }
}