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

:root {
    --primary-teal: #0D6E6E;
    --white: #FFFFFF;
    --slate: #2D3748;
    --accent-amber: #D97706;
    --light-gray: #F7FAFC;
    --border-color: #E2E8F0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-size: 18px;
    line-height: 1.7;
    color: var(--slate);
    background-color: var(--white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.nav {
    position: sticky;
    top: 0;
    background-color: var(--white);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 16px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-placeholder {
    width: 120px;
    height: 40px;
    background-color: var(--primary-teal);
}

.logo-text {
    font-size: 16px;
    font-weight: 600;
    color: var(--slate);
}

.nav-link {
    color: var(--slate);
    text-decoration: none;
    font-size: 16px;
    font-weight: 500;
    padding: 8px 12px;
    border-radius: 4px;
    transition: background-color 0.2s ease;
}

.nav-link:hover,
.nav-link:focus {
    background-color: var(--light-gray);
    outline: none;
}

.nav-link:focus-visible {
    outline: 2px solid var(--primary-teal);
    outline-offset: 2px;
}

.hero {
    padding: 80px 0;
    background-color: var(--white);
}

.hero h1 {
    font-size: 32px;
    line-height: 1.3;
    color: var(--slate);
    margin-bottom: 24px;
    max-width: 800px;
}

.hero-subheading {
    font-size: 18px;
    line-height: 1.7;
    color: var(--slate);
    margin-bottom: 32px;
    max-width: 800px;
}

.cta-button {
    display: inline-block;
    background-color: var(--accent-amber);
    color: var(--white);
    text-decoration: none;
    padding: 14px 28px;
    font-size: 16px;
    font-weight: 600;
    border-radius: 6px;
    transition: background-color 0.2s ease, transform 0.1s ease;
    border: none;
    cursor: pointer;
}

.cta-button:hover,
.cta-button:focus {
    background-color: #B45309;
    outline: none;
}

.cta-button:focus-visible {
    outline: 2px solid var(--primary-teal);
    outline-offset: 2px;
}

.cta-button:active {
    transform: scale(0.98);
}

.patterns {
    padding: 60px 0;
    background-color: var(--light-gray);
}

.patterns-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 24px;
}

.pattern-card {
    background-color: var(--white);
    padding: 32px;
    border-left: 4px solid var(--primary-teal);
    border-radius: 0 6px 6px 0;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.pattern-card h3 {
    font-size: 22px;
    color: var(--slate);
    margin-bottom: 16px;
}

.pattern-card p {
    font-size: 18px;
    line-height: 1.7;
    color: var(--slate);
}

.what-we-do {
    padding: 60px 0;
    background-color: var(--white);
}

.what-we-do-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 32px;
}

.what-we-do-item h3 {
    font-size: 20px;
    color: var(--primary-teal);
    margin-bottom: 12px;
}

.what-we-do-item p {
    font-size: 18px;
    line-height: 1.7;
    color: var(--slate);
}

.listening {
    padding: 60px 0;
    background-color: var(--light-gray);
}

.listening h2 {
    font-size: 28px;
    color: var(--slate);
    margin-bottom: 16px;
}

.listening > .container > p {
    font-size: 18px;
    line-height: 1.7;
    color: var(--slate);
    margin-bottom: 32px;
    max-width: 700px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 16px;
    font-weight: 500;
    color: var(--slate);
    margin-bottom: 8px;
}

.form-group input[type="email"],
.form-group select {
    width: 100%;
    padding: 12px 16px;
    font-size: 16px;
    font-family: inherit;
    color: var(--slate);
    background-color: var(--white);
    border: 2px solid var(--border-color);
    border-radius: 6px;
    transition: border-color 0.2s ease;
}

.form-group input[type="email"]:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-teal);
}

.form-group input[type="email"]:focus-visible,
.form-group select:focus-visible {
    outline: 2px solid var(--primary-teal);
    outline-offset: 2px;
}

.form-group input[type="email"]:invalid,
.form-group select:invalid {
    border-color: #DC2626;
}

.error-message {
    display: block;
    font-size: 14px;
    color: #DC2626;
    margin-top: 6px;
}

.submit-button {
    background-color: var(--primary-teal);
    color: var(--white);
    padding: 14px 28px;
    font-size: 16px;
    font-weight: 600;
    font-family: inherit;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    transition: background-color 0.2s ease, transform 0.1s ease;
}

.submit-button:hover,
.submit-button:focus {
    background-color: #0A5A5A;
    outline: none;
}

.submit-button:focus-visible {
    outline: 2px solid var(--accent-amber);
    outline-offset: 2px;
}

.submit-button:active {
    transform: scale(0.98);
}

.form-success {
    padding: 24px;
    background-color: #D1FAE5;
    border: 2px solid #10B981;
    border-radius: 6px;
    margin-top: 20px;
}

.form-success p {
    font-size: 18px;
    color: #065F46;
    margin: 0;
}

footer {
    padding: 32px 0;
    background-color: var(--white);
    border-top: 1px solid var(--border-color);
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.footer-left p,
.footer-center p,
.footer-right p {
    font-size: 14px;
    color: var(--slate);
    margin: 0;
}

.footer-right a {
    color: var(--primary-teal);
    text-decoration: none;
}

.footer-right a:hover,
.footer-right a:focus {
    text-decoration: underline;
}

.footer-right a:focus-visible {
    outline: 2px solid var(--primary-teal);
    outline-offset: 2px;
}

@media (min-width: 768px) {
    .hero h1 {
        font-size: 42px;
    }

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

    .what-we-do-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .footer-container {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
    }

    .footer-left,
    .footer-center,
    .footer-right {
        flex: 1;
    }

    .footer-center {
        text-align: center;
    }

    .footer-right {
        text-align: right;
    }
}