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

:root {
    --primary-color: #2c3e50;
    --secondary-color: #3498db;
    --text-color: #333;
    --light-gray: #f8f9fa;
    --dark-gray: #3a3a3a;
    --border-color: #e0e0e0;
    --max-width: 1800px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    font-size: 16px;
}

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 4vw;
}

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

.full-width-img {
    width: 100%;
    margin: 2rem 0;
}

/* Header */
.header {
    padding: 1.5rem 0;
    background: var(--dark-gray);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

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

.logo img {
    height: 51px;
    width: auto;
}

/* Hamburger Menu */
.hamburger {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: #fff;
    margin: 3px 0;
    transition: 0.3s;
}

.hamburger.active span:nth-child(1) {
    transform: rotate(-45deg) translate(-5px, 6px);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: rotate(45deg) translate(-5px, -6px);
}

/* Hero Section */
.hero {
    padding: 8rem 0;
    background: var(--dark-gray);
    text-align: center;
}

.hero-title {
    font-size: 3rem;
    font-weight: 600;
    line-height: 1.3;
    color: #fff;
    max-width: 1000px;
    margin: 0 auto;
}

/* Use Cases Section */
.use-cases {
    padding: 6rem 0;
    background: #fff;
}

.use-cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 3rem;
}

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

.use-case h2 {
    font-size: 1.75rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.use-case p {
    font-size: 1.1rem;
    color: #666;
}

/* Core Solution Section */
.core-solution {
    padding: 4rem 0;
    background: var(--light-gray);
}

/* Three Pillars Section */
.pillars {
    padding: 6rem 0;
    background: var(--dark-gray);
}

.section-title {
    font-size: 2.5rem;
    font-weight: 600;
    text-align: center;
    margin-bottom: 4rem;
    color: var(--primary-color);
}

.pillars .section-title {
    color: #fff;
}

.pillars-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 3rem;
}

.pillar {
    text-align: center;
}

.pillar-image {
    margin-bottom: 1.5rem;
    overflow: hidden;
    border-radius: 8px;
}

.pillar-image img {
    width: 100%;
    height: 300px;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.pillar:hover .pillar-image img {
    transform: scale(1.05);
}

.pillar-content h3 {
    font-size: 1.75rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #fff;
}

.pillar-content p {
    font-size: 1.1rem;
    color: #ddd;
}

/* Differentiators Section */
.differentiators {
    padding: 6rem 0;
    background: #fff;
}

.differentiators-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2.5rem;
    margin-top: 3rem;
}

.differentiator {
    padding: 2rem;
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    text-align: center;
}

.differentiator:hover {
    transform: translateY(-5px);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
}

.differentiator h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    color: var(--primary-color);
}

.differentiator p {
    color: #666;
    font-size: 1rem;
}

/* Contact Section */
.contact {
    padding: 6rem 0;
    background: #fff;
}

.contact-form {
    max-width: 600px;
    margin: 0 auto;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--primary-color);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.875rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 1rem;
    font-family: inherit;
    transition: border-color 0.3s ease;
}

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

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.submit-btn {
    background: var(--primary-color);
    color: #fff;
    padding: 1rem 2.5rem;
    border: none;
    border-radius: 4px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.3s ease;
    width: 100%;
}

.submit-btn:hover {
    background: #1a252f;
}

.success-message {
    max-width: 600px;
    margin: 2rem auto;
    padding: 2rem;
    background: #d4edda;
    border: 1px solid #c3e6cb;
    border-radius: 4px;
    text-align: center;
}

.success-message p {
    color: #155724;
    font-size: 1.1rem;
    font-weight: 500;
}

/* Footer */
.footer {
    padding: 3rem 0;
    background: var(--primary-color);
    color: #fff;
    text-align: center;
}

.footer p {
    font-size: 0.95rem;
}

/* Responsive Styles */
@media (max-width: 1024px) {
    .hero-title {
        font-size: 2.5rem;
    }

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

    .use-case h2,
    .pillar-content h3 {
        font-size: 1.5rem;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 6vw;
    }

    .hamburger {
        display: flex;
    }

    .logo img {
        height: 30px;
    }

    .hero {
        padding: 5rem 0;
    }

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

    .use-cases {
        padding: 4rem 0;
    }

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

    .pillars,
    .differentiators,
    .contact {
        padding: 4rem 0;
    }

    .section-title {
        font-size: 1.75rem;
        margin-bottom: 2.5rem;
    }

    .pillars-grid {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }

    .differentiators-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .pillar-image img {
        height: 250px;
    }

    .use-case h2 {
        font-size: 1.4rem;
    }

    .pillar-content h3 {
        font-size: 1.4rem;
    }

    .differentiator h3 {
        font-size: 1.3rem;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 1.5rem;
    }

    .section-title {
        font-size: 1.5rem;
    }

    .use-case h2,
    .pillar-content h3 {
        font-size: 1.25rem;
    }

    .differentiator h3 {
        font-size: 1.2rem;
    }

    .hero {
        padding: 3rem 0;
    }

    .use-cases,
    .pillars,
    .differentiators,
    .contact {
        padding: 3rem 0;
    }
}