/* TATA Motors Pitch Deck - Professional Styling */

/* CSS Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* TATA Motors Brand Colors */
:root {
    /* Primary Brand Colors */
    --tata-blue: #3048B9;
    --tata-electric-blue: #0000B3;
    --tata-ocean-blue: #1E40AF;
    --tata-royal-blue: #2563EB;
    --tata-white: #FFFFFF;
    --tata-black: #000000;
    
    /* Supporting Colors */
    --tata-gray-50: #F9FAFB;
    --tata-gray-100: #F3F4F6;
    --tata-gray-200: #E5E7EB;
    --tata-gray-300: #D1D5DB;
    --tata-gray-400: #9CA3AF;
    --tata-gray-500: #6B7280;
    --tata-gray-600: #4B5563;
    --tata-gray-700: #374151;
    --tata-gray-800: #1F2937;
    --tata-gray-900: #111827;
    
    /* Accent Colors */
    --tata-success: #10B981;
    --tata-warning: #F59E0B;
    --tata-error: #EF4444;
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 6rem;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    
    /* Transitions */
    --transition-fast: 0.15s ease-in-out;
    --transition-normal: 0.3s ease-in-out;
    --transition-slow: 0.5s ease-in-out;
}

/* Base Typography */
html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    font-weight: var(--font-weight-normal);
    line-height: 1.6;
    color: var(--tata-gray-800);
    background-color: var(--tata-white);
    overflow-x: hidden;
}

/* Typography Styles */
h1, h2, h3, h4, h5, h6 {
    font-weight: var(--font-weight-bold);
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
    color: var(--tata-gray-900);
}

h1 { font-size: 3.5rem; }
h2 { font-size: 2.5rem; }
h3 { font-size: 1.875rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1.125rem; }

p {
    margin-bottom: var(--spacing-sm);
    color: var(--tata-gray-600);
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--tata-gray-200);
    z-index: 1000;
    transition: var(--transition-normal);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-sm) var(--spacing-md);
    max-width: 1200px;
    margin: 0 auto;
}

.nav-brand .logo {
    display: flex;
    align-items: center;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: var(--font-weight-bold);
    color: var(--tata-blue);
    letter-spacing: -0.025em;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.nav-link {
    text-decoration: none;
    color: var(--tata-gray-700);
    font-weight: var(--font-weight-medium);
    transition: var(--transition-fast);
    position: relative;
}

.nav-link:hover {
    color: var(--tata-blue);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--tata-blue);
    transition: var(--transition-fast);
}

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

.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
    color: var(--tata-gray-700);
}

/* Main Content */
.main {
    margin-top: 80px;
}

/* Section Styles */
.section {
    padding: var(--spacing-3xl) 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
}

.section-title {
    margin-bottom: var(--spacing-md);
    color: var(--tata-gray-900);
}

.section-subtitle {
    font-size: 1.25rem;
    color: var(--tata-gray-600);
    max-width: 600px;
    margin: 0 auto;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--tata-blue) 0%, var(--tata-ocean-blue) 100%);
    color: var(--tata-white);
    padding: var(--spacing-3xl) 0;
    min-height: 90vh;
    display: flex;
    align-items: center;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
}

.hero-title {
    font-size: 4rem;
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-md);
    color: var(--tata-white);
}

.highlight {
    color: #FFD700;
    display: block;
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-xl);
    color: rgba(255, 255, 255, 0.9);
    line-height: 1.7;
}

.hero-stats {
    display: flex;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.stat {
    text-align: center;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: var(--font-weight-bold);
    color: var(--tata-white);
    display: block;
}

.stat-label {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.8);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.hero-actions {
    display: flex;
    gap: var(--spacing-md);
}

.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-image-container {
    width: 400px;
    height: 400px;
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.hero-background-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: var(--radius-xl);
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(48, 72, 185, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-xl);
}

.hero-icon {
    width: 120px;
    height: 120px;
    color: var(--tata-white);
}

/* Button Styles */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-lg);
    border: none;
    border-radius: var(--radius-md);
    font-weight: var(--font-weight-medium);
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition-fast);
    font-size: 1rem;
}

.btn-primary {
    background: var(--tata-white);
    color: var(--tata-blue);
}

.btn-primary:hover {
    background: var(--tata-gray-100);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: transparent;
    color: var(--tata-white);
    border: 2px solid var(--tata-white);
}

.btn-secondary:hover {
    background: var(--tata-white);
    color: var(--tata-blue);
    transform: translateY(-2px);
}

.btn-large {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: 1.125rem;
}

/* Problem Section */
.problem-section {
    background: var(--tata-gray-50);
}

.problem-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-xl);
}

.problem-card {
    background: var(--tata-white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    text-align: center;
    transition: var(--transition-normal);
}

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

.problem-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--tata-blue), var(--tata-ocean-blue));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-md);
}

.problem-icon i {
    width: 40px;
    height: 40px;
    color: var(--tata-white);
}

.problem-card h3 {
    margin-bottom: var(--spacing-sm);
    color: var(--tata-gray-900);
}

.problem-card p {
    color: var(--tata-gray-600);
}

/* Solution Section */
.solution-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
}

.feature-card {
    background: var(--tata-white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    border-left: 4px solid var(--tata-blue);
    transition: var(--transition-normal);
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-left-color: var(--tata-ocean-blue);
}

.feature-icon {
    width: 60px;
    height: 60px;
    background: var(--tata-blue);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-md);
}

.feature-icon i {
    width: 30px;
    height: 30px;
    color: var(--tata-white);
}

.feature-card h3 {
    margin-bottom: var(--spacing-sm);
    color: var(--tata-gray-900);
}

.feature-card p {
    color: var(--tata-gray-600);
}

/* Market Section */
.market-section {
    background: var(--tata-gray-50);
}

.market-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
}

.market-stat {
    background: var(--tata-white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    transition: var(--transition-normal);
}

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

.stat-visual {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--tata-blue), var(--tata-ocean-blue));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.stat-visual i {
    width: 40px;
    height: 40px;
    color: var(--tata-white);
}

.stat-content .stat-number {
    font-size: 2.5rem;
    font-weight: var(--font-weight-bold);
    color: var(--tata-blue);
    line-height: 1;
}

.stat-content .stat-label {
    color: var(--tata-gray-600);
    margin: var(--spacing-xs) 0;
}

.stat-growth {
    color: var(--tata-success);
    font-weight: var(--font-weight-semibold);
    font-size: 0.875rem;
}

/* Traction Section */
.traction-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-xl);
}

.traction-card {
    background: var(--tata-white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    text-align: center;
    transition: var(--transition-normal);
}

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

.traction-icon {
    width: 80px;
    height: 80px;
    background: var(--tata-blue);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-md);
}

.traction-icon i {
    width: 40px;
    height: 40px;
    color: var(--tata-white);
}

.traction-content h3 {
    margin-bottom: var(--spacing-md);
    color: var(--tata-gray-900);
}

.traction-metric {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.metric-number {
    font-size: 2rem;
    font-weight: var(--font-weight-bold);
    color: var(--tata-blue);
}

.metric-label {
    color: var(--tata-gray-600);
    font-size: 0.875rem;
}

/* Financials Section */
.financials-section {
    background: var(--tata-gray-50);
}

.financial-highlights {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
}

.financial-card {
    background: var(--tata-white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    transition: var(--transition-normal);
}

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

.financial-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--tata-success), #059669);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.financial-icon i {
    width: 40px;
    height: 40px;
    color: var(--tata-white);
}

.financial-number {
    font-size: 2rem;
    font-weight: var(--font-weight-bold);
    color: var(--tata-success);
    line-height: 1;
}

.financial-label {
    color: var(--tata-gray-600);
    margin: var(--spacing-xs) 0;
}

.financial-growth {
    color: var(--tata-success);
    font-weight: var(--font-weight-semibold);
    font-size: 0.875rem;
}

/* Team Section */
.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-xl);
}

.team-card {
    background: var(--tata-white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    text-align: center;
    transition: var(--transition-normal);
}

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

.team-avatar {
    width: 100px;
    height: 100px;
    background: linear-gradient(135deg, var(--tata-blue), var(--tata-ocean-blue));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-md);
}

.team-avatar i {
    width: 50px;
    height: 50px;
    color: var(--tata-white);
}

.team-info h3 {
    margin-bottom: var(--spacing-xs);
    color: var(--tata-gray-900);
}

.team-role {
    color: var(--tata-blue);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-sm);
}

.team-bio {
    color: var(--tata-gray-600);
    font-size: 0.875rem;
}

/* CTA Section */
.cta-section {
    background: linear-gradient(135deg, var(--tata-blue) 0%, var(--tata-ocean-blue) 100%);
    color: var(--tata-white);
    text-align: center;
}

.cta-title {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
    color: var(--tata-white);
}

.cta-subtitle {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-xl);
    color: rgba(255, 255, 255, 0.9);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.cta-actions {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
}

/* Footer */
.footer {
    background: var(--tata-gray-900);
    color: var(--tata-white);
    padding: var(--spacing-3xl) 0 var(--spacing-lg);
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--spacing-3xl);
    margin-bottom: var(--spacing-xl);
}

.footer-brand .logo-text {
    color: var(--tata-white);
    font-size: 1.5rem;
}

.footer-tagline {
    color: var(--tata-gray-400);
    margin-top: var(--spacing-xs);
    font-style: italic;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
}

.footer-section h4 {
    color: var(--tata-white);
    margin-bottom: var(--spacing-md);
    font-size: 1.125rem;
}

.footer-section ul {
    list-style: none;
}

.footer-section li {
    margin-bottom: var(--spacing-xs);
}

.footer-section a {
    color: var(--tata-gray-400);
    text-decoration: none;
    transition: var(--transition-fast);
}

.footer-section a:hover {
    color: var(--tata-white);
}

.footer-bottom {
    border-top: 1px solid var(--tata-gray-700);
    padding-top: var(--spacing-lg);
    text-align: center;
    color: var(--tata-gray-400);
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .nav-toggle {
        display: block;
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-stats {
        justify-content: center;
    }
    
    .hero-actions {
        justify-content: center;
        flex-wrap: wrap;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .cta-title {
        font-size: 2rem;
    }
    
    .cta-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: var(--spacing-md);
    }
    
    .problem-grid,
    .solution-features,
    .market-stats,
    .traction-grid,
    .financial-highlights,
    .team-grid {
        grid-template-columns: 1fr;
    }
}

/* Print Styles */
@media print {
    .header,
    .nav-toggle,
    .hero-actions,
    .cta-actions,
    .footer {
        display: none;
    }
    
    .main {
        margin-top: 0;
    }
    
    .section {
        padding: var(--spacing-lg) 0;
        page-break-inside: avoid;
    }
    
    .hero {
        background: var(--tata-white);
        color: var(--tata-black);
        min-height: auto;
    }
    
    .hero-title,
    .cta-title {
        color: var(--tata-black);
    }
    
    @page {
        margin: 1in;
        @top-center {
            content: "TATA Motors Pitch Deck";
        }
        @bottom-center {
            content: "Created by Helium";
        }
    }
}

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

.hero-content,
.section-header,
.problem-card,
.feature-card,
.market-stat,
.traction-card,
.financial-card,
.team-card {
    animation: fadeInUp 0.6s ease-out;
}

/* Smooth scrolling for better UX */
@media (prefers-reduced-motion: no-preference) {
    html {
        scroll-behavior: smooth;
    }
}

/* Focus styles for accessibility */
.btn:focus,
.nav-link:focus {
    outline: 2px solid var(--tata-blue);
    outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --tata-gray-600: var(--tata-gray-800);
        --tata-gray-400: var(--tata-gray-600);
    }
}