/* Base Styles & Variables */
:root {
    /* Light Theme Colors */
    --primary-color: #4361ee;
    --primary-dark: #3a56d4;
    --secondary-color: #3f37c9;
    --accent-color: #4895ef;
    --text-color: #2b2d42;
    --text-light: #8d99ae;
    --bg-color: #ffffff;
    --bg-light: #f8f9fa;
    --bg-dark: #edf2f4;
    --border-color: #e9ecef;
    --success-color: #4bb543;
    --error-color: #ff3333;
    --warning-color: #ffcc00;
    
    /* Typography */
    --font-main: 'Poppins', sans-serif;
    --font-size-base: 16px;
    --line-height-base: 1.6;
    
    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-xxl: 3rem;
    
    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.12);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 15px rgba(0,0,0,0.1);
    --shadow-xl: 0 20px 25px rgba(0,0,0,0.1);
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-full: 9999px;
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* Dark Theme Variables */
[data-theme="dark"] {
    --primary-color: #4895ef;
    --primary-dark: #4361ee;
    --secondary-color: #560bad;
    --accent-color: #7209b7;
    --text-color: #f8f9fa;
    --text-light: #adb5bd;
    --bg-color: #121212;
    --bg-light: #1e1e1e;
    --bg-dark: #2b2d42;
    --border-color: #343a40;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-main);
    font-size: var(--font-size-base);
    line-height: var(--line-height-base);
    color: var(--text-color);
    background-color: var(--bg-color);
    transition: background-color var(--transition-normal), color var(--transition-normal);
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--primary-dark);
    text-decoration: underline;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

ul {
    list-style: none;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: var(--space-md);
}

h1 {
    font-size: 2.5rem;
}

h2 {
    font-size: 2rem;
}

h3 {
    font-size: 1.75rem;
}

h4 {
    font-size: 1.5rem;
}

p {
    margin-bottom: var(--space-md);
}

.subtitle, .section-subtitle {
    font-size: 1.25rem;
    color: var(--text-light);
    margin-bottom: var(--space-lg);
    font-weight: 300;
}

/* Layout */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

section {
    padding: var(--space-xxl) 0;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-sm);
    font-weight: 500;
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-fast);
    border: 2px solid transparent;
}

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

.btn-primary:hover {
    background-color: var(--primary-dark);
    text-decoration: none;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background-color: var(--bg-light);
    color: var(--text-color);
    border-color: var(--border-color);
}

.btn-secondary:hover {
    background-color: var(--bg-dark);
    text-decoration: none;
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

.btn-outline {
    background-color: transparent;
    color: var(--primary-color);
    border-color: var(--primary-color);
}

.btn-outline:hover {
    background-color: var(--primary-color);
    color: white;
    text-decoration: none;
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

/* Header Styles */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background-color: var(--bg-color);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-md) 0;
}

.logo img {
    height: 40px;
}

.main-nav ul {
    display: flex;
    gap: var(--space-lg);
}

.main-nav a {
    color: var(--text-color);
    font-weight: 500;
}

.main-nav a:hover {
    color: var(--primary-color);
    text-decoration: none;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.theme-toggle {
    background: none;
    border: none;
    cursor: pointer;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-color);
    transition: all var(--transition-fast);
    position: relative;
}

.theme-toggle:hover {
    background-color: var(--bg-light);
}

.theme-toggle i {
    position: absolute;
    transition: opacity var(--transition-fast), transform var(--transition-fast);
}

.theme-toggle .fa-moon {
    opacity: 0;
    transform: rotate(90deg);
}

.theme-toggle .fa-sun {
    opacity: 1;
    transform: rotate(0);
}

[data-theme="dark"] .theme-toggle .fa-moon {
    opacity: 1;
    transform: rotate(0);
}

[data-theme="dark"] .theme-toggle .fa-sun {
    opacity: 0;
    transform: rotate(-90deg);
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    width: 30px;
    height: 24px;
    flex-direction: column;
    justify-content: space-between;
    padding: 0;
    cursor: pointer;
}

.mobile-menu-toggle span {
    display: block;
    width: 100%;
    height: 3px;
    background-color: var(--text-color);
    transition: all var(--transition-fast);
}

.mobile-menu {
    display: none;
    position: fixed;
    top: 80px;
    left: 0;
    width: 100%;
    background-color: var(--bg-color);
    box-shadow: var(--shadow-md);
    padding: var(--space-md) 0;
    transform: translateY(-150%);
    opacity: 0;
    transition: all var(--transition-normal);
}

.mobile-menu.active {
    transform: translateY(0);
    opacity: 1;
}

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

.mobile-menu a {
    display: block;
    padding: var(--space-sm) 0;
    color: var(--text-color);
    font-weight: 500;
}

.mobile-menu-toggle.active span:nth-child(1) {
    transform: translateY(10px) rotate(45deg);
}

.mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle.active span:nth-child(3) {
    transform: translateY(-10px) rotate(-45deg);
}

/* Hero Section */
.hero {
    padding-top: 120px;
    padding-bottom: var(--space-xxl);
    background: linear-gradient(135deg, rgba(67,97,238,0.1) 0%, rgba(72,149,239,0.05) 100%);
}

.hero .container {
    display: flex;
    align-items: center;
    gap: var(--space-xxl);
}

.hero-content {
    flex: 1;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: var(--space-lg);
    line-height: 1.1;
}

.hero .subtitle {
    font-size: 1.5rem;
    margin-bottom: var(--space-xl);
}

.cta-buttons {
    display: flex;
    gap: var(--space-md);
    margin-bottom: var(--space-xl);
}

.hero-image {
    flex: 1;
    position: relative;
}

.hero-image img {
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    transition: transform var(--transition-normal);
}

.hero-image:hover img {
    transform: translateY(-5px);
}

/* Trust Badges */
.trust-badges {
    text-align: center;
    padding: var(--space-xl) 0;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.trust-badges p {
    color: var(--text-light);
    margin-bottom: var(--space-md);
}

.trust-badges .logos {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--space-xxl);
    flex-wrap: wrap;
}

.trust-badges .logos img {
    height: 30px;
    opacity: 0.7;
    filter: grayscale(100%);
    transition: all var(--transition-fast);
}

.trust-badges .logos img:hover {
    opacity: 1;
    filter: grayscale(0);
}

/* Features Section */
.features {
    text-align: center;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-lg);
    margin-top: var(--space-xl);
}

.feature-card {
    background-color: var(--bg-light);
    border-radius: var(--radius-md);
    padding: var(--space-xl);
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.feature-icon {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-md);
    background-color: rgba(67,97,238,0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--space-md);
    color: var(--primary-color);
    font-size: 1.5rem;
}

/* How It Works */
.how-it-works {
    background-color: var(--bg-light);
}

.how-it-works .steps {
    display: flex;
    justify-content: space-between;
    gap: var(--space-lg);
    margin-bottom: var(--space-xxl);
    position: relative;
}

.how-it-works .steps::before {
    content: '';
    position: absolute;
    top: 30px;
    left: 0;
    right: 0;
    height: 2px;
    background-color: var(--border-color);
    z-index: 1;
}

.step {
    position: relative;
    z-index: 2;
    flex: 1;
    text-align: center;
}

.step-number {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background-color: var(--primary-color);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 auto var(--space-md);
    border: 5px solid var(--bg-light);
}

.step-content {
    padding: 0 var(--space-md);
}

.demo-video {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
}

.video-placeholder {
    width: 100%;
    height: 450px;
    background-color: var(--bg-dark);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 3rem;
    box-shadow: var(--shadow-lg);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.video-placeholder:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.video-placeholder i {
    background-color: var(--primary-color);
    width: 80px;
    height: 80px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Testimonials */
.testimonial-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-lg);
    margin-top: var(--space-xl);
}

.testimonial-card {
    background-color: var(--bg-light);
    border-radius: var(--radius-md);
    padding: var(--space-xl);
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.testimonial-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.rating {
    color: #ffc107;
    margin-bottom: var(--space-md);
}

.testimonial-text {
    font-style: italic;
    margin-bottom: var(--space-lg);
}

.user {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.user img {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    object-fit: cover;
}

.user-info h4 {
    margin-bottom: 0;
}

.user-info p {
    color: var(--text-light);
    font-size: 0.875rem;
    margin-bottom: 0;
}

/* Pricing Section */
.pricing {
    background-color: var(--bg-light);
    text-align: center;
}

.pricing-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-md);
    margin-bottom: var(--space-xl);
}

.switch {
    position: relative;
    display: inline-block;
    width: 60px;
    height: 34px;
}

.switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--primary-color);
    transition: .4s;
    border-radius: 34px;
}

.slider:before {
    position: absolute;
    content: "";
    height: 26px;
    width: 26px;
    left: 4px;
    bottom: 4px;
    background-color: white;
    transition: .4s;
    border-radius: 50%;
}

input:checked + .slider {
    background-color: var(--primary-dark);
}

input:checked + .slider:before {
    transform: translateX(26px);
}

.discount-badge {
    background-color: var(--success-color);
    color: white;
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
}

.pricing-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-lg);
    margin-top: var(--space-xl);
}

.pricing-card {
    background-color: var(--bg-color);
    border-radius: var(--radius-md);
    padding: var(--space-xl);
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
    position: relative;
    border: 1px solid var(--border-color);
}

.pricing-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.pricing-card.popular {
    border-color: var(--primary-color);
}

.popular-badge {
    position: absolute;
    top: -12px;
    right: var(--space-xl);
    background-color: var(--primary-color);
    color: white;
    padding: var(--space-xs) var(--space-md);
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-weight: 600;
}

.price {
    margin-bottom: var(--space-md);
}

.price .amount {
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary-color);
}

.price .period {
    font-size: 1rem;
    color: var(--text-light);
}

.plan-description {
    color: var(--text-light);
    margin-bottom: var(--space-lg);
}

.features-list {
    margin-bottom: var(--space-xl);
    text-align: left;
}

.features-list li {
    margin-bottom: var(--space-sm);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.features-list i {
    width: 20px;
    text-align: center;
}

.features-list .fa-check {
    color: var(--success-color);
}

.features-list .fa-times {
    color: var(--text-light);
}

.enterprise-cta {
    margin-top: var(--space-xl);
}

/* FAQ Section */
.faq-items {
    max-width: 800px;
    margin: var(--space-xl) auto 0;
}

.faq-item {
    margin-bottom: var(--space-md);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.faq-question {
    width: 100%;
    padding: var(--space-md);
    background-color: var(--bg-light);
    border: none;
    text-align: left;
    font-weight: 500;
    font-size: 1.1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    transition: background-color var(--transition-fast);
}

.faq-question:hover {
    background-color: var(--bg-dark);
}

.faq-question i {
    transition: transform var(--transition-fast);
}

.faq-question.active i {
    transform: rotate(180deg);
}

.faq-answer {
    padding: 0 var(--space-md);
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-normal), padding var(--transition-normal);
}

.faq-answer.active {
    padding: var(--space-md);
    max-height: 500px;
}

.faq-cta {
    margin-top: var(--space-xl);
    text-align: center;
}

/* Final CTA */
.final-cta {
    text-align: center;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    padding: var(--space-xxl) 0;
}

.final-cta h2 {
    color: white;
}

.final-cta .subtitle {
    color: rgba(255,255,255,0.8);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* Footer */
.footer {
    background-color: var(--bg-dark);
    padding: var(--space-xxl) 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-xl);
    margin-bottom: var(--space-xxl);
}

.footer-col h4 {
    margin-bottom: var(--space-lg);
    font-size: 1.1rem;
}

.footer-description {
    margin-bottom: var(--space-md);
}

.social-links {
    display: flex;
    gap: var(--space-md);
    margin-top: var(--space-lg);
}

.social-links a {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--bg-light);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-color);
    transition: all var(--transition-fast);
}

.social-links a:hover {
    background-color: var(--primary-color);
    color: white;
    text-decoration: none;
    transform: translateY(-3px);
}

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

.footer-col ul a {
    color: var(--text-light);
    transition: color var(--transition-fast);
}

.footer-col ul a:hover {
    color: var(--primary-color);
    text-decoration: none;
}

.newsletter-form .form-group {
    display: flex;
    gap: var(--space-sm);
    margin-top: var(--space-md);
}

.newsletter-form input {
    flex: 1;
    padding: var(--space-sm);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    background-color: var(--bg-light);
    color: var(--text-color);
}

.footer-bottom {
    padding: var(--space-md) 0;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-md);
}

.footer-links {
    display: flex;
    gap: var(--space-md);
}

.footer-links a {
    color: var(--text-light);
    font-size: 0.875rem;
}

/* Responsive Styles */
@media (max-width: 992px) {
    .hero .container {
        flex-direction: column;
        gap: var(--space-xl);
    }
    
    .hero-content, .hero-image {
        text-align: center;
        width: 100%;
    }
    
    .cta-buttons {
        justify-content: center;
    }
    
    .how-it-works .steps {
        flex-direction: column;
        gap: var(--space-xl);
    }
    
    .how-it-works .steps::before {
        display: none;
    }
    
    .step {
        display: flex;
        align-items: flex-start;
        gap: var(--space-md);
        text-align: left;
    }
    
    .step-number {
        margin: 0;
        flex-shrink: 0;
    }
    
    .step-content {
        padding: 0;
    }
}

@media (max-width: 768px) {
    h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1.75rem;
    }
    
    .main-nav {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .header-actions .btn {
        display: none;
    }
    
    .mobile-menu .btn {
        display: inline-block;
        width: 100%;
        text-align: center;
    }
    
    .hero {
        padding-top: 100px;
    }
    
    .hero h1 {
        font-size: 2.25rem;
    }
    
    .hero .subtitle {
        font-size: 1.25rem;
    }
    
    .cta-buttons {
        flex-direction: column;
    }
    
    .pricing-cards {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 576px) {
    .footer-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
    
    .footer-links {
        flex-wrap: wrap;
        justify-content: center;
    }
}