/* Modern CSS Reset */
*,
*::before,
*::after {
    box-sizing: border-box;
}

* {
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

img,
picture,
video,
canvas,
svg {
    display: block;
    max-width: 100%;
}

input,
button,
textarea,
select {
    font: inherit;
}

/* CSS Variables */
:root {
    /* Colors */
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --secondary: #f59e0b;
    --text-primary: #111827;
    --text-secondary: #6b7280;
    --text-light: #9ca3af;
    --background: #ffffff;
    --background-light: #f9fafb;
    --background-dark: #111827;
    --border: #e5e7eb;
    --success: #10b981;
    
    /* Typography */
    --font-family: 'Inter', system-ui, -apple-system, sans-serif;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    
    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 0.75rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    
    /* Transitions */
    --transition: 0.2s ease-in-out;
}

/* Base Styles */
body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    color: var(--text-primary);
    background-color: var(--background);
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

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

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    text-decoration: none;
}

.logo-img {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
}

.nav-logo .logo-text {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--primary);
    text-decoration: none;
}

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

.nav-link {
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 500;
    transition: var(--transition);
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-md);
}

.nav-link:hover {
    color: var(--primary);
    background-color: var(--background-light);
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
}

.bar {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: var(--transition);
}

/* Hero Section */
.hero {
    padding: 120px 0 80px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
    position: relative;
    overflow: hidden;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
    align-items: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    background: rgba(255, 255, 255, 0.2);
    padding: var(--space-sm) var(--space-lg);
    border-radius: var(--radius-xl);
    margin-bottom: var(--space-lg);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    font-size: var(--font-size-sm);
    font-weight: 500;
}

.badge-highlight {
    background: var(--secondary);
    color: var(--text-primary);
    padding: 2px var(--space-sm);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
}

.hero-title {
    font-size: var(--font-size-5xl);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: var(--space-lg);
}

.gradient-text {
    background: linear-gradient(135deg, var(--secondary), #f97316);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: var(--font-size-lg);
    line-height: 1.7;
    margin-bottom: var(--space-2xl);
    opacity: 0.9;
}

.hero-buttons {
    display: flex;
    gap: var(--space-lg);
    margin-bottom: var(--space-2xl);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-lg) var(--space-xl);
    border-radius: var(--radius-lg);
    text-decoration: none;
    font-weight: 600;
    font-size: var(--font-size-base);
    transition: var(--transition);
    border: 2px solid transparent;
    cursor: pointer;
    min-width: 140px;
}

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

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

.btn-secondary {
    background: transparent;
    color: white;
    border-color: rgba(255, 255, 255, 0.3);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: white;
}

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

.phone-mockup {
    position: relative;
    max-width: 320px;
    width: 100%;
}

.phone-frame {
    position: relative;
    width: 100%;
}

.phone-img {
    width: 100%;
    height: auto;
    border-radius: 2rem;
    box-shadow: var(--shadow-xl);
    filter: drop-shadow(0 20px 40px rgba(0, 0, 0, 0.3));
}

.phone-placeholder {
    width: 280px;
    height: 560px;
    background: #1f2937;
    border-radius: 2rem;
    padding: 1rem;
    box-shadow: var(--shadow-xl);
    margin: 0 auto;
}

.phone-placeholder .phone-screen {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    border-radius: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.app-preview {
    text-align: center;
    color: white;
    z-index: 1;
    padding: var(--space-lg);
}

.preview-header {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: var(--space-xl);
}

.preview-icon {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-md);
}

.preview-content {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.preview-card {
    background: rgba(255, 255, 255, 0.2);
    padding: var(--space-md) var(--space-lg);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    font-weight: 500;
}

.floating-elements {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
}

.floating-card {
    position: absolute;
    background: white;
    color: var(--text-primary);
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: var(--font-size-sm);
    font-weight: 600;
    animation: float 3s ease-in-out infinite;
    z-index: 10;
}

.card-1 {
    top: 15%;
    right: -15%;
    animation-delay: 0s;
}

.card-2 {
    top: 45%;
    left: -25%;
    animation-delay: 1s;
}

.card-3 {
    bottom: 15%;
    right: -10%;
    animation-delay: 2s;
}

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

/* Sections */
section {
    padding: var(--space-3xl) 0;
}

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

.section-title {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    margin-bottom: var(--space-lg);
    color: var(--text-primary);
}

.section-subtitle {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
}

/* Features Section */
.features {
    background: var(--background-light);
}

.problem-solution {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xl);
    margin-bottom: var(--space-3xl);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.problem-card, .solution-card {
    padding: var(--space-xl);
    border-radius: var(--radius-xl);
    text-align: left;
}

.problem-card {
    background: #fef2f2;
    border-left: 4px solid #ef4444;
}

.solution-card {
    background: #f0fdf4;
    border-left: 4px solid #22c55e;
}

.problem-card h3, .solution-card h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--space-md);
    color: var(--text-primary);
}

.problem-card ul, .solution-card ul {
    list-style: none;
    padding: 0;
}

.problem-card li, .solution-card li {
    padding: var(--space-xs) 0;
    position: relative;
    padding-left: var(--space-lg);
    color: var(--text-secondary);
}

.problem-card li::before {
    content: '❌';
    position: absolute;
    left: 0;
    font-size: 0.875rem;
}

.solution-card li::before {
    content: '✅';
    position: absolute;
    left: 0;
    font-size: 0.875rem;
}

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

.feature-card {
    background: white;
    padding: var(--space-2xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border: 1px solid var(--border);
    text-align: center;
}

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

.feature-icon {
    font-size: var(--font-size-4xl);
    margin-bottom: var(--space-lg);
}

.feature-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--space-md);
    color: var(--text-primary);
}

.feature-description {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* How It Works */
.steps-container {
    max-width: 800px;
    margin: 0 auto;
}

.step {
    display: flex;
    align-items: center;
    gap: var(--space-xl);
    margin-bottom: var(--space-2xl);
    padding: var(--space-xl);
    border-radius: var(--radius-xl);
    transition: var(--transition);
}

.step:hover {
    background: var(--background-light);
}

.step-number {
    width: 60px;
    height: 60px;
    background: var(--primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-xl);
    font-weight: 700;
    flex-shrink: 0;
}

.step-content {
    flex: 1;
}

.step-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--space-sm);
    color: var(--text-primary);
}

.step-description {
    color: var(--text-secondary);
    line-height: 1.6;
}

.step-visual {
    width: 200px;
    flex-shrink: 0;
}

.step-img {
    width: 100%;
    height: auto;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border);
}

.step-placeholder {
    width: 200px;
    height: 300px;
    background: var(--background-light);
    border-radius: var(--radius-lg);
    border: 2px dashed var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
}

.placeholder-content {
    text-align: center;
    color: var(--text-light);
}

.placeholder-icon {
    font-size: var(--font-size-4xl);
    margin-bottom: var(--space-md);
}

.placeholder-text {
    font-size: var(--font-size-sm);
    font-weight: 500;
}

/* Download Section */
.download {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    text-align: center;
}

.download .section-title {
    color: white;
}

.download .section-subtitle {
    color: rgba(255, 255, 255, 0.9);
}

.value-props {
    display: flex;
    justify-content: center;
    gap: var(--space-xl);
    margin: var(--space-xl) 0;
}

.value-item {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: rgba(255, 255, 255, 0.9);
}

.value-icon {
    font-size: var(--font-size-lg);
}

.why-try-now {
    margin-top: var(--space-xl);
    padding: var(--space-xl);
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-xl);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    text-align: left;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.why-try-now h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--space-lg);
    text-align: center;
    color: white;
}

.reasons {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.reason {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-sm);
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, 0.05);
}

.reason-icon {
    font-size: var(--font-size-lg);
    flex-shrink: 0;
}

.reason-text {
    color: rgba(255, 255, 255, 0.9);
    font-size: var(--font-size-base);
}

.download-buttons {
    display: flex;
    justify-content: center;
    gap: var(--space-lg);
    margin: var(--space-2xl) 0;
    flex-wrap: wrap;
}

.download-btn {
    display: inline-block;
    transition: var(--transition);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.download-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.store-badge {
    height: 60px;
    width: auto;
    display: block;
    border-radius: var(--radius-lg);
}

.google-play .store-badge {
    height: 60px;
}

.indus-store .store-badge {
    height: 60px;
}

.store-info {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.store-name {
    font-size: var(--font-size-lg);
    font-weight: 600;
}

.store-subtitle {
    font-size: var(--font-size-sm);
    opacity: 0.8;
}

.download-info {
    display: flex;
    justify-content: center;
    gap: var(--space-2xl);
    margin-top: var(--space-2xl);
}

.info-item {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: var(--font-size-base);
    font-weight: 500;
}

/* Footer */
.footer {
    background: var(--background-dark);
    color: white;
    padding: var(--space-3xl) 0 var(--space-xl);
}

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

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-lg);
}

.footer-logo .logo-img {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
}

.footer-logo .logo-text {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: white;
}

.footer-description {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.6;
}

.footer-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--space-lg);
}

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

.footer-list li {
    margin-bottom: var(--space-sm);
}

.footer-list a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: var(--transition);
}

.footer-list a:hover {
    color: white;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    padding-top: var(--space-xl);
    text-align: center;
}

.footer-copyright {
    color: rgba(255, 255, 255, 0.6);
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        padding: var(--space-lg);
        box-shadow: var(--shadow-lg);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition) ease-in-out;
        z-index: 999;
    }
    
    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .nav-menu .nav-link {
        padding: var(--space-md) 0;
        border-bottom: 1px solid var(--border);
        width: 100%;
        text-align: center;
    }
    
    .nav-menu .nav-link:last-child {
        border-bottom: none;
    }
    
    .hamburger {
        display: flex;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: var(--space-2xl);
    }
    
    .hero-title {
        font-size: var(--font-size-3xl);
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .phone-mockup {
        width: 240px;
        height: 480px;
    }
    
    .floating-card {
        font-size: 0.75rem;
        padding: var(--space-xs) var(--space-sm);
    }
    
    .card-1 {
        top: 10%;
        right: -10%;
    }
    
    .card-2 {
        top: 40%;
        left: -20%;
    }
    
    .card-3 {
        bottom: 10%;
        right: -5%;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .problem-solution {
        grid-template-columns: 1fr;
        gap: var(--space-lg);
    }
    
    .step {
        flex-direction: column;
        text-align: center;
        gap: var(--space-lg);
    }
    
    .step-visual {
        width: 100%;
        max-width: 250px;
        order: -1;
    }
    
    .step-placeholder {
        width: 100%;
        max-width: 250px;
        height: 200px;
        margin: 0 auto;
    }
    
    .download-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .download-info {
        flex-direction: column;
        gap: var(--space-md);
    }
    
    .value-props {
        flex-direction: column;
        gap: var(--space-md);
        text-align: center;
    }
    
    .why-try-now {
        text-align: center;
    }
    
    .reasons {
        gap: var(--space-sm);
    }
    
    .reason {
        justify-content: center;
        text-align: center;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--space-md);
    }
    
    .hero {
        padding: 100px 0 60px;
    }
    
    .hero-title {
        font-size: var(--font-size-2xl);
    }
    
    .section-title {
        font-size: var(--font-size-2xl);
    }
    
    .btn {
        padding: var(--space-md) var(--space-lg);
        min-width: 120px;
    }
    
    .phone-mockup {
        width: 200px;
        height: 400px;
    }
}

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

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

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

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}