/* Base Styles */
:root {
    --primary-color: #2563eb;
    --secondary-color: #1e40af;
    --accent-color: #3b82f6;
    --text-color: #1f2937;
    --light-text: #6b7280;
    --background: #ffffff;
    --dark-background: #111827;
    --border-color: #e5e7eb;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --error-color: #ef4444;
}

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

body {
    font-family: 'Exo', sans-serif;
    color: var(--text-color);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
}

h1 {
    font-size: 3.5rem;
    font-weight: 800;
}

h2 {
    font-size: 2.5rem;
}

h3 {
    font-size: 1.75rem;
}

p {
    margin-bottom: 1rem;
    color: var(--light-text);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    cursor: pointer;
}

.btn-primary {
    background-color: var(--primary-color);
    color: white !important;
    border: 2px solid var(--primary-color);
}

.btn-primary:hover {
    background-color: var(--secondary-color);
    border-color: var(--secondary-color);
    color: white !important;
    font-weight: 700;
}

.btn-outline {
    background-color: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.btn-outline:hover {
    background-color: var(--primary-color);
    color: white;
    font-weight: 700;
}

.btn-secondary {
    background-color: transparent;
    color: white !important;
    border: 2px solid white;
}

.btn-secondary:hover {
    background-color: rgba(255, 255, 255, 0.1);
    color: white !important;
    font-weight: 700;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: var(--background);
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    z-index: 1000;
    padding: 1rem 0;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo img {
    height: 40px;
}

.nav-links {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-links a {
    color: var(--text-color);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease, font-weight 0.3s ease;
}

.nav-links a:hover {
    color: var(--primary-color);
}

.nav-links a.btn-outline:hover {
    background-color: var(--primary-color);
    color: white;
    font-weight: 700;
}

.nav-links a.btn-primary:hover {
    background-color: var(--secondary-color);
    border-color: var(--secondary-color);
    color: white;
    font-weight: 700;
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 6px;
    cursor: pointer;
}

.mobile-menu-btn span {
    width: 30px;
    height: 2px;
    background-color: var(--text-color);
    transition: all 0.3s ease;
}

/* Hero Section */
.hero {
    padding: 8rem 0 4rem;
    background: linear-gradient(135deg, var(--dark-background) 0%, var(--secondary-color) 100%);
    color: white;
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-content h1 {
    color: white;
    margin-bottom: 1.5rem;
}

.hero-content p {
    color: rgba(255,255,255,0.9);
    font-size: 1.25rem;
    margin-bottom: 2rem;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
}

.hero-image img {
    width: 100%;
    max-width: 500px;
    height: auto;
}

/* Problem + Solution Section */
.problem-solution {
    padding: 6rem 0;
    background-color: var(--background);
}

.problem-solution .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.problem-content ul {
    list-style: none;
    margin-top: 2rem;
}

.problem-content li {
    margin-bottom: 1rem;
    padding-left: 2rem;
    position: relative;
}

.problem-content li:before {
    content: "✓";
    color: var(--success-color);
    position: absolute;
    left: 0;
}

.solution-content {
    text-align: center;
}

.solution-icon {
    width: 120px;
    height: auto;
    margin-top: 2rem;
}

/* Features Section */
.features {
    padding: 6rem 0;
    background-color: #f9fafb;
}

.features h2 {
    text-align: center;
    margin-bottom: 4rem;
}

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

.feature-card {
    background-color: white;
    padding: 2rem;
    border-radius: 1rem;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
}

.feature-card i {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

/* How It Works Section */
.how-it-works {
    padding: 6rem 0;
    background-color: var(--background);
}

.how-it-works h2 {
    text-align: center;
    margin-bottom: 4rem;
}

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

.step {
    text-align: center;
    padding: 2rem;
}

.step-number {
    width: 40px;
    height: 40px;
    background-color: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    font-weight: bold;
}

/* Pricing Section */
.pricing {
    padding: 6rem 0;
    background-color: #f9fafb;
}

.pricing h2 {
    text-align: center;
    margin-bottom: 4rem;
}

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

.pricing-card {
    background-color: white;
    padding: 2rem;
    border-radius: 1rem;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    text-align: center;
    position: relative;
}

.pricing-card.featured {
    transform: scale(1.05);
    border: 2px solid var(--primary-color);
}

.popular-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--primary-color);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 1rem;
    font-size: 0.875rem;
    font-weight: 600;
}

.price {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin: 1rem 0;
}

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

.pricing-card ul {
    list-style: none;
    margin: 2rem 0;
}

.pricing-card li {
    margin-bottom: 0.5rem;
    color: var(--light-text);
}

/* Security Section */
.security {
    padding: 6rem 0;
    background-color: var(--dark-background);
    color: white;
}

.security h2 {
    text-align: center;
    margin-bottom: 4rem;
    color: white;
}

.security-features {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
}

.security-feature {
    text-align: center;
}

.security-feature i {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.security-feature p {
    color: rgba(255,255,255,0.9);
}

/* Testimonials Section */
.testimonials {
    padding: 6rem 0;
    background-color: var(--background);
}

.testimonials h2 {
    text-align: center;
    margin-bottom: 4rem;
}

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

.testimonial-card {
    background-color: #f9fafb;
    padding: 2rem;
    border-radius: 1rem;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

.quote {
    font-size: 1.125rem;
    font-weight: 500;
    margin-bottom: 1rem;
}

.author {
    color: var(--light-text);
}

.author strong {
    display: block;
    color: var(--text-color);
}

/* FAQ Section */
.faq {
    padding: 6rem 0;
    background-color: #f9fafb;
}

.faq h2 {
    text-align: center;
    margin-bottom: 4rem;
}

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

.faq-item {
    background-color: white;
    padding: 2rem;
    border-radius: 1rem;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

.faq-item h3 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

/* Final CTA Section */
.final-cta {
    padding: 6rem 0;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    text-align: center;
}

.final-cta h2 {
    color: white;
    margin-bottom: 2rem;
}

.final-cta p {
    color: rgba(255,255,255,0.9);
    margin-top: 1rem;
}

/* Footer */
.footer {
    padding: 4rem 0 2rem;
    background-color: var(--dark-background);
    color: white;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 4rem;
    margin-bottom: 4rem;
}

.footer-logo {
    height: 40px;
    margin-bottom: 1rem;
}

.social-links {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
}

.social-links a {
    color: white;
    font-size: 1.5rem;
    transition: color 0.3s ease;
}

.social-links a:hover {
    color: var(--primary-color);
}

.footer-col h4 {
    color: white;
    margin-bottom: 1.5rem;
}

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

.footer-col li {
    margin-bottom: 0.5rem;
}

.footer-col a {
    color: rgba(255,255,255,0.9);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-col a:hover {
    color: var(--primary-color);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255,255,255,0.1);
}

/* Responsive Design */
@media (max-width: 1024px) {
    .features-grid,
    .security-features {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    h1 {
        font-size: 2.5rem;
    }

    h2 {
        font-size: 2rem;
    }

    .hero .container,
    .problem-solution .container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-buttons {
        justify-content: center;
    }

    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: var(--background);
        padding: 1rem;
        box-shadow: 0 2px 4px rgba(0,0,0,0.1);
        flex-direction: column;
        gap: 1rem;
    }

    .nav-links.active {
        display: flex;
    }

    .mobile-menu-btn {
        display: flex;
    }

    .mobile-menu-btn.active span:nth-child(1) {
        transform: rotate(45deg) translate(8px, 8px);
    }

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

    .mobile-menu-btn.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -7px);
    }

    .features-grid,
    .steps,
    .pricing-grid,
    .testimonials-grid,
    .faq-grid {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-content,
.feature-card,
.step,
.pricing-card,
.testimonial-card,
.faq-item {
    animation: fadeIn 0.6s ease-out forwards;
}

/* Utility Classes */
.text-center {
    text-align: center;
}

.mt-1 { margin-top: 1rem; }
.mt-2 { margin-top: 2rem; }
.mt-4 { margin-top: 4rem; }
.mb-1 { margin-bottom: 1rem; }
.mb-2 { margin-bottom: 2rem; }
.mb-4 { margin-bottom: 4rem; }