* {
    margin: 0;
    box-sizing: border-box;
    font-family: 'Courier New', Courier, monospace, sans-serif;
    --text: #2a2a2a;
    --background: #eff0f3;
    --primary: #ff8e3c;
}

html {
    scroll-behavior: smooth;
}

a {
    text-decoration: none;
}

ul {
    list-style: none;
    padding: 0;
}

/* Layout */

.header {
    position: sticky;
    top: 0;
    display: flex;
    justify-content: space-between;
    background-color: var(--primary);
}

.header__link {
    color: var(--background);
    font-weight: 700;
    padding: 1rem;
}

.header__link:hover {
    background-color: rgba(0, 0, 0, 0.05);
}

.header__link:focus-visible {
    outline: 2px solid var(--background);
    outline-offset: -2px;
}

.header__link:active {
    opacity: 0.6;
}

.main {
    display: flex;
    flex-direction: column;
    color: var(--text);
    background-color: var(--background);
}

.footer {
    display: flex;
    justify-content: space-between;
    padding: 1rem;
    color: var(--background);
    background-color: var(--text);
}

.footer__links {
    padding: 1rem;
    background-color: var(--background);
    border-radius: 0.5rem;
}

.footer__link {
    color: var(--primary);
}

.footer__link:hover {
    font-weight: 700;
}

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

.footer__link:active {
    opacity: 0.6;
}

/* section */

.hero {
    background-color: var(--text);
    background: linear-gradient(rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0.5)), url('../images/Product-Engineering-Facts-that-Drives-your-Business-Growth-1-1.webp') center / cover no-repeat;
    min-height: 80vh;
    justify-content: center;
    color: var(--background);
}

.hero__link {
    color: var(--primary);
    background-color: rgba(0, 0, 0, 0.5);
    padding: 0.5rem 2rem;
    border: 1px solid var(--primary);
    border-radius: 0.5rem;
    font-weight: 700;
}

.testimonial {
    background-color: color-mix(in oklch, var(--text), transparent 25%);
    color: var(--background);
}

.cta {
    min-height: 80vh;
    justify-content: center;
    background-color: color-mix(in oklch, var(--text), transparent 25%);
    color: var(--background);
}

/* Components  */

.section {
    scroll-margin-top: 3rem; 
    padding: 2rem 1rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.nav {
    display: flex;
    padding: 1rem 0rem;
    flex-wrap: wrap;
}

.nav__link {
    color: var(--background);
    font-weight: 700;
    padding: 1rem;
}

.nav__link:hover {
    background-color: rgba(0, 0, 0, 0.05);
}

.nav__link:focus-visible {
    outline: 2px solid var(--background);
    outline-offset: -2px;
}

.nav__link:active {
    opacity: 0.6;
}

.form {
    display: flex;
    flex-direction: column;
    min-width: 600px;
    padding: 2rem 1rem;
    gap: 1rem;
    border-radius: 0.5rem;
    color: var(--background);
    background-color: color-mix(in oklch, var(--text), transparent 25%);
}

.form__element:focus-visible {
    outline: 2px solid var(--text);
    border-radius: 0.25rem;
    outline-offset: -2px;
}

.form__element::placeholder {
    color: var(--text);
    opacity: 0.6;
}

.cardContainer {
    display: flex;
    padding: 1rem 0;
    gap: 1rem;
    flex-wrap: wrap;
    justify-content: center;
}

.card {
    max-width: 15rem;
    display: flex;
    flex-direction: column;
    padding: 1rem;
    gap: 1rem;
    align-items: center;
    border-radius: 0.5rem;
    border: 1px solid #f0f0f0;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1),
                0 2px 4px -1px rgba(0, 0, 0, 0.06);
}

.featureCard {
    background-color: color-mix(in oklch, var(--primary), transparent);
}

.testimonialCard {
    max-width: 20rem;
    background-color: var(--primary);
    align-items: flex-start;
}

.testimonialCard__quote::before, .testimonialCard__quote::after {
    content: '"';
}

.testimonialCard__name {
    align-self: flex-end;
    font-weight: 700;
}

.testimonialCard__name::before {
    content:'- '
}

.testimonialCard__role {
    align-self: flex-end;
    font-size: 0.9rem;
    margin: 0;
}

.testimonialCard__role::before {
    content: '(';
}

.testimonialCard__role::after {
    content: ')';
}


.pricingCard {
    border: 1px solid var(--primary);
}

.pricingCard--primary {
    background-color: color-mix(in oklch, var(--primary), transparent 70%);
}

.pricingCard__name {
    font-weight: 700;
    font-size: 1.25rem;
}

.pricingCard__features {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.pricingCard__feature::before {
    content: '✓';
    color: var(--primary);
    font-weight: 700;
    margin-right: 0.5rem;
}

.button {
    border: none;
    padding: 0.5rem 2rem;
    border-radius: 0.5rem;
    font-size: 1rem;
    font-weight: 700;
}

.button--primary {
    background-color: var(--primary);
    color: var(--background);
    transition: 
        background-color 0.2s ease-in-out,
        transform 0.1s ease;
}

.button--primary:hover {
    background-color: color-mix(in oklch,var(--primary), rgb(0, 0, 0) 20%);
    transform: translateY(-1px); 
}

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

.button--primary:active {
    transform: translateY(0) scale(0.98);
    background-color: color-mix(in oklch,var(--primary), rgb(0, 0, 0) 20%);
    transition: none;
}

.button--link {
    padding: 0.5rem 0;
    background-color: transparent;
    transition: 
        background-color 0.2s ease-in-out,
        transform 0.1s ease;
}

.button--link:hover {
    background-color: rgba(0, 0, 0, 0.2);
    transform: translateY(-1px); 
}

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

.button--link:active {
    transform: translateY(0) scale(0.98);
    background-color: rgba(0, 0, 0, 0.2);
    transition: none;
}

.button--secondary {
    background-color: var(--background);
    color: var(--primary);
    border: 1px solid var(--primary);
    transition: 
        background-color 0.2s ease-in-out,
        transform 0.1s ease;
}

.button--secondary:hover {
    background-color: color-mix(in oklch,var(--background), rgb(0, 0, 0) 20%);
    transform: translateY(-1px); 
}

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

.button--secondary:active {
    transform: translateY(0) scale(0.98);
    background-color: color-mix(in oklch,var(--background), rgb(0, 0, 0) 20%);
    transition: none;
}