/* ========================================
   CSS Reset & Base Styles
   ======================================== */

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

:root {
    /* Navy Blue Classic Color Palette */
    --forest-green: #003366;
    --mountain-green: #1E90FF;
    --light-green: #4169E1;
    --wood-brown: #B8860B;
    --dark-brown: #001F3F;
    --stone-gray: #6B7280;
    --light-gray: #F0F4F8;
    --white: #ffffff;
    --cream: #F5F8FA;
    --accent-gold: #FFD700;

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--forest-green) 0%, var(--mountain-green) 100%);
    --gradient-hero: linear-gradient(135deg, rgba(0, 51, 102, 0.9) 0%, rgba(30, 144, 255, 0.8) 100%);

    /* Typography */
    --font-primary: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-heading: Georgia, 'Times New Roman', serif;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    line-height: 1.6;
    color: #333;
    background-color: var(--cream);
}

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

/* ========================================
   Navigation
   ======================================== */

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    transition: var(--transition-normal);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--spacing-sm);
    padding-bottom: var(--spacing-sm);
}

.nav-brand {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--forest-green);
    font-family: var(--font-heading);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-md);
}

.nav-menu a {
    text-decoration: none;
    color: var(--dark-brown);
    font-weight: 500;
    transition: var(--transition-fast);
    position: relative;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--mountain-green);
    transition: var(--transition-fast);
}

.nav-menu a:hover {
    color: var(--mountain-green);
}

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

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: var(--forest-green);
    transition: var(--transition-fast);
}

/* ========================================
   Hero Section
   ======================================== */

.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-hero);
    background-image:
        var(--gradient-hero),
        url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1200 600"><path d="M0,300 Q300,200 600,300 T1200,300 L1200,600 L0,600 Z" fill="%23003366" opacity="0.1"/></svg>');
    background-size: cover;
    background-position: center;
    color: var(--white);
    padding-top: 120px;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 30% 50%, rgba(30, 144, 255, 0.3) 0%, transparent 60%);
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    line-height: 1.2;
    font-family: var(--font-primary);
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-lg);
    opacity: 0.95;
}

.hero-features {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
}

.hero-feature {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm);
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 12px;
    min-width: 140px;
}

.hero-feature .icon {
    font-size: 2rem;
}

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

/* ========================================
   Buttons
   ======================================== */

.btn {
    display: inline-block;
    padding: 1rem 2.5rem;
    font-size: 1.1rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: 50px;
    transition: var(--transition-normal);
    cursor: pointer;
    border: 2px solid transparent;
}

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

.btn-primary:hover {
    background: var(--dark-brown);
    border-color: var(--dark-brown);
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

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

.btn-secondary:hover {
    background: var(--white);
    color: var(--forest-green);
}

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

.btn-outline:hover {
    background: var(--mountain-green);
    color: var(--white);
}

/* ========================================
   Section Styles
   ======================================== */

section {
    padding: var(--spacing-xl) 0;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: var(--spacing-md);
    color: var(--forest-green);
    font-family: var(--font-heading);
}

.section-subtitle {
    font-size: 1.2rem;
    text-align: center;
    margin-bottom: var(--spacing-lg);
    color: var(--stone-gray);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

/* ========================================
   Features Section
   ======================================== */

.features {
    background: var(--white);
}

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

.feature-card {
    padding: var(--spacing-md);
    background: var(--cream);
    border-radius: 16px;
    transition: var(--transition-normal);
    border: 2px solid transparent;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 51, 102, 0.1);
    border-color: var(--light-green);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
}

.feature-card h3 {
    font-size: 1.3rem;
    margin-bottom: var(--spacing-sm);
    color: var(--forest-green);
}

.feature-card p {
    color: var(--stone-gray);
    line-height: 1.7;
}

/* ========================================
   Case Study Section
   ======================================== */

.case-study {
    background: var(--light-gray);
}

.case-content {
    display: grid;
    gap: var(--spacing-lg);
}

.case-info,
.case-challenge,
.case-solution,
.case-results,
.case-tech {
    background: var(--white);
    padding: var(--spacing-md);
    border-radius: 16px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
}

.case-content h3 {
    font-size: 1.8rem;
    margin-bottom: var(--spacing-md);
    color: var(--forest-green);
    font-family: var(--font-heading);
}

.case-details {
    list-style: none;
    line-height: 2;
}

.case-details li {
    padding-left: 1.5rem;
    position: relative;
}

.case-details li::before {
    content: '•';
    position: absolute;
    left: 0;
    top: 0.1rem;
    color: var(--mountain-green);
    font-weight: bold;
    font-size: 1.5rem;
    line-height: 1;
}

.case-challenge ul,
.case-solution ul {
    margin-top: var(--spacing-sm);
    padding-left: var(--spacing-md);
    line-height: 1.8;
}

.case-challenge ul li,
.case-solution ul li {
    margin-bottom: var(--spacing-xs);
}

.results-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.result-card {
    text-align: center;
    padding: var(--spacing-md);
    background: var(--gradient-primary);
    color: var(--white);
    border-radius: 12px;
}

.result-number {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
}

.result-label {
    font-size: 1.1rem;
    opacity: 0.95;
}

.tech-stack {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

.tech-badge {
    padding: 0.5rem 1.5rem;
    background: var(--light-green);
    color: var(--white);
    border-radius: 20px;
    font-weight: 500;
    font-size: 0.95rem;
}

/* ========================================
   Pricing Section
   ======================================== */

.pricing {
    background: var(--white);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.pricing-card {
    position: relative;
    padding: var(--spacing-md);
    background: var(--cream);
    border-radius: 20px;
    border: 2px solid var(--light-gray);
    transition: var(--transition-normal);
}

.pricing-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0, 51, 102, 0.15);
}

.pricing-featured {
    border-color: var(--mountain-green);
    box-shadow: 0 10px 30px rgba(0, 51, 102, 0.1);
}

.pricing-badge {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--wood-brown);
    color: var(--white);
    padding: 0.5rem 1.5rem;
    border-radius: 20px;
    font-weight: 600;
    font-size: 0.9rem;
}

.pricing-header {
    text-align: center;
    padding-bottom: var(--spacing-md);
    border-bottom: 2px solid var(--light-gray);
    margin-bottom: var(--spacing-md);
}

.pricing-header h3 {
    font-size: 1.8rem;
    margin-bottom: var(--spacing-md);
    color: var(--forest-green);
    font-family: var(--font-heading);
}

.price {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 0.3rem;
}

.currency {
    font-size: 1.5rem;
    color: var(--stone-gray);
}

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

.period {
    font-size: 1.2rem;
    color: var(--stone-gray);
}

.pricing-features {
    list-style: none;
    margin-bottom: var(--spacing-md);
    line-height: 2.2;
}

.pricing-features li {
    padding-left: 0.5rem;
}

.pricing-note {
    background: var(--light-gray);
    padding: var(--spacing-md);
    border-radius: 12px;
    margin-top: var(--spacing-md);
}

.pricing-note p {
    margin-bottom: var(--spacing-sm);
    line-height: 1.8;
}

.pricing-note p:last-child {
    margin-bottom: 0;
}

/* ========================================
   Demo Section
   ======================================== */

.demo {
    background: var(--light-gray);
}

.demo-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
}

.demo-form {
    background: var(--white);
    padding: var(--spacing-md);
    border-radius: 16px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
}

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

.form-group.full-width {
    grid-column: 1 / -1;
}

.form-group label {
    font-weight: 600;
    color: var(--forest-green);
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 0.8rem;
    border: 2px solid var(--light-gray);
    border-radius: 8px;
    font-size: 1rem;
    font-family: var(--font-primary);
    transition: var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--mountain-green);
}

.form-actions {
    grid-column: 1 / -1;
}

.form-message {
    grid-column: 1 / -1;
    padding: var(--spacing-sm);
    border-radius: 8px;
    text-align: center;
    font-weight: 600;
    display: none;
}

.form-message.success {
    display: block;
    background: #d4edda;
    color: #155724;
}

.form-message.error {
    display: block;
    background: #f8d7da;
    color: #721c24;
}

.demo-info {
    background: var(--white);
    padding: var(--spacing-md);
    border-radius: 16px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
}

.demo-info h3,
.demo-info h4 {
    color: var(--forest-green);
    margin-bottom: var(--spacing-md);
}

.demo-steps {
    counter-reset: step;
    list-style: none;
    margin-bottom: var(--spacing-lg);
}

.demo-steps li {
    counter-increment: step;
    position: relative;
    padding-left: 3rem;
    margin-bottom: var(--spacing-md);
}

.demo-steps li::before {
    content: counter(step);
    position: absolute;
    left: 0;
    top: 0;
    width: 2rem;
    height: 2rem;
    background: var(--mountain-green);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
}

.demo-steps strong {
    display: block;
    margin-bottom: 0.3rem;
    color: var(--forest-green);
}

.demo-benefits ul {
    list-style: none;
    line-height: 2;
}

/* ========================================
   Contacts Section
   ======================================== */

.contacts {
    background: var(--white);
}

.contacts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.contact-card {
    text-align: center;
    padding: var(--spacing-md);
    background: var(--cream);
    border-radius: 16px;
    transition: var(--transition-normal);
}

.contact-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 51, 102, 0.1);
}

.contact-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
}

.contact-card h3 {
    font-size: 1.3rem;
    margin-bottom: var(--spacing-sm);
    color: var(--forest-green);
}

.contact-link {
    display: block;
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--mountain-green);
    text-decoration: none;
    margin-bottom: var(--spacing-xs);
    transition: var(--transition-fast);
}

.contact-link:hover {
    color: var(--wood-brown);
}

.contact-note {
    color: var(--stone-gray);
    font-size: 0.95rem;
}

.contacts-cta {
    text-align: center;
    padding: var(--spacing-lg);
    background: var(--gradient-primary);
    color: var(--white);
    border-radius: 20px;
}

.contacts-cta h3 {
    font-size: 2rem;
    margin-bottom: var(--spacing-sm);
}

.contacts-cta p {
    font-size: 1.1rem;
    margin-bottom: var(--spacing-md);
    opacity: 0.95;
}

/* ========================================
   Footer
   ======================================== */

.footer {
    background: var(--forest-green);
    color: var(--white);
    padding: var(--spacing-lg) 0 var(--spacing-md);
}

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

.footer-section h4 {
    font-size: 1.2rem;
    margin-bottom: var(--spacing-md);
    font-family: var(--font-heading);
}

.footer-section p {
    opacity: 0.9;
    line-height: 1.7;
}

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

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

.footer-links a {
    color: var(--white);
    text-decoration: none;
    opacity: 0.8;
    transition: var(--transition-fast);
}

.footer-links a:hover {
    opacity: 1;
    padding-left: 5px;
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    opacity: 0.8;
}

/* ========================================
   Responsive Design
   ======================================== */

@media (max-width: 968px) {
    .demo-content {
        grid-template-columns: 1fr;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1.2rem;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }

    .nav-toggle {
        display: flex;
    }

    .hero-title {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .hero-features {
        flex-direction: column;
    }

    .demo-form {
        grid-template-columns: 1fr;
    }

    .form-group {
        grid-column: 1 / -1;
    }

    .pricing-grid {
        grid-template-columns: 1fr;
    }

    .section-title {
        font-size: 2rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-sm);
    }

    .hero-cta {
        flex-direction: column;
        gap: var(--spacing-sm);
    }

    .btn {
        width: 100%;
        text-align: center;
    }
}