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

body {
    font-family: "Montserrat", sans-serif;
    font-size: 1rem;
    line-height: 1.6;
    background-color: #ffffff;
    color: #111111;
}

h1,
h2,
h3 {
    line-height: 1.1;
    letter-spacing: -0.03em;
}

header {
    padding: 1.5rem 5%;
    background-color: #ffffff;
}

header nav {
    display: flex;
    align-items: center;
    gap: 2.5rem;
}

header nav a:first-of-type {
    margin-right: auto;
}

header img {
    width: 95px;
    height: auto;
    display: block;
}

header nav a {
    color: #111111;
    text-decoration: none;
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    transition: opacity 0.3s ease;
}

header nav a:hover {
    opacity: 0.5;
}

header nav a:focus {
    outline: 2px solid #111111;
    outline-offset: 5px;
}

.about-hero {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    min-height: 80vh;
    background-color: #ffffff;
}

.about-hero-text {
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 7rem 5%;
}

.section-label {
    margin-bottom: 1.5rem;
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.15em;
    text-transform: uppercase;
}

.about-hero h1 {
    max-width: 850px;
    font-size: clamp(4rem, 8vw, 8rem);
    font-weight: 800;
    line-height: 0.85;
    letter-spacing: -0.07em;
    text-transform: uppercase;
}

.about-hero-image {
    min-height: 80vh;
    overflow: hidden;
    background-color: #111111;
}

.about-hero-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.our-story {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6rem;
    padding: 10rem 5%;
    background-color: #111111;
    color: #ffffff;
}

.story-heading h2 {
    max-width: 650px;
    font-size: clamp(3rem, 6vw, 6rem);
    font-weight: 800;
    line-height: 0.88;
    letter-spacing: -0.06em;
    text-transform: uppercase;
}

.story-content {
    max-width: 600px;
    align-self: end;
}

.story-content p {
    margin-bottom: 2rem;
    color: #b5b5b5;
    font-size: 1rem;
    line-height: 1.8;
}

.story-content p:last-child {
    margin-bottom: 0;
}

.mission-vision {
    display: grid;
    grid-template-columns: 1fr 1fr;
    background-color: #f2f2f2;
}

.mission,
.vision {
    padding: 9rem 5%;
}

.mission {
    border-right: 1px solid #d0d0d0;
}

.mission h2,
.vision h2 {
    margin-bottom: 3rem;
    font-size: clamp(3rem, 5vw, 5rem);
    font-weight: 800;
    line-height: 0.88;
    letter-spacing: -0.06em;
    text-transform: uppercase;
}

.mission p:last-child,
.vision p:last-child {
    max-width: 500px;
    font-size: 1rem;
    line-height: 1.8;
}

.why-left {
    padding: 10rem 5%;
    background-color: #ffffff;
}

.why-heading {
    margin-bottom: 7rem;
}

.why-heading h2 {
    max-width: 900px;
    font-size: clamp(3.5rem, 7vw, 7rem);
    font-weight: 800;
    line-height: 0.88;
    letter-spacing: -0.07em;
    text-transform: uppercase;
}

.about-features {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 5rem;
}

.about-features article {
    padding-top: 1.5rem;
    border-top: 2px solid #111111;
}

.about-features span {
    display: block;
    margin-bottom: 2rem;
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.12em;
}

.about-features h3 {
    margin-bottom: 1rem;
    font-size: 0.85rem;
    font-weight: 800;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.about-features p {
    max-width: 320px;
    color: #555555;
    font-size: 0.9rem;
    line-height: 1.7;
}

footer {
    padding: 5rem 5% 2rem;
    background-color: #111111;
    color: #ffffff;
}

footer nav {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 2.5rem;
    margin-bottom: 5rem;
}

footer nav a {
    color: #ffffff;
    text-decoration: none;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    transition: opacity 0.3s ease;
}

footer nav a:hover {
    opacity: 0.5;
}

footer nav a:focus {
    outline: 2px solid #ffffff;
    outline-offset: 5px;
}

.copyright {
    text-align: center;
    font-size: 0.7rem;
    letter-spacing: 0.05em;
    color: #777777;
}



/* Responsive design fot tablet widths */

@media (max-width: 900px) {

    header {
        padding: 1.5rem 4%;
    }

    header nav {
        gap: 1.5rem;
    }

    header img {
        width: 85px;
    }

    header nav a {
        font-size: 0.7rem;
    }

    .about-hero {
        grid-template-columns: 1fr 1fr;
        min-height: 70vh;
    }

    .about-hero-text {
        padding: 5rem 5%;
    }

    .about-hero h1 {
        font-size: clamp(3.5rem, 8vw, 6rem);
    }

    .about-hero-image {
        min-height: 70vh;
    }

    .our-story {
        gap: 3rem;
        padding: 7rem 5%;
    }

    .story-heading h2 {
        font-size: clamp(3rem, 6vw, 5rem);
    }

    .story-content p {
        font-size: 0.9rem;
    }

    .mission,
    .vision {
        padding: 7rem 5%;
    }

    .mission h2,
    .vision h2 {
        font-size: clamp(2.8rem, 5vw, 4.5rem);
    }

    .why-left {
        padding: 7rem 5%;
    }

    .why-heading {
        margin-bottom: 5rem;
    }

    .why-heading h2 {
        font-size: clamp(3rem, 7vw, 5.5rem);
    }

    .about-features {
        gap: 2.5rem;
    }

    .about-features p {
        font-size: 0.85rem;
    }

    footer {
        padding: 5rem 5% 2rem;
    }

    footer nav {
        gap: 2rem;
    }

}


/* Responsive design for mobile widths */

@media (max-width: 600px) {

    header {
        padding: 1.25rem 5%;
    }

    header nav {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        justify-content: stretch;
        align-items: center;
        gap: 0.75rem;
    }

    header nav a:first-of-type {
        grid-column: 1 / 5;
        justify-self: start;
        margin-right: 0;
        margin-bottom: 0.75rem;
    }

    header img {
        width: 80px;
    }

    header nav a {
        font-size: 0.6rem;
        letter-spacing: 0.07em;
    }

    .about-hero {
        display: block;
        min-height: 0;
    }

    .about-hero-text {
        padding: 5rem 5%;
    }

    .about-hero h1 {
        font-size: clamp(3rem, 14vw, 5rem);
    }

    .about-hero-image {
        min-height: 400px;
        height: 55vh;
    }

    .our-story {
        display: block;
        padding: 5rem 5%;
    }

    .story-heading {
        margin-bottom: 3rem;
    }

    .story-heading h2 {
        font-size: clamp(2.8rem, 12vw, 4.2rem);
    }

    .story-content p {
        font-size: 0.85rem;
        line-height: 1.7;
    }

    .mission-vision {
        display: block;
    }

    .mission,
    .vision {
        padding: 5rem 5%;
    }

    .mission {
        border-right: none;
        border-bottom: 1px solid #d0d0d0;
    }

    .mission h2,
    .vision h2 {
        margin-bottom: 2rem;
        font-size: clamp(2.8rem, 12vw, 4.2rem);
    }

    .mission p:last-child,
    .vision p:last-child {
        font-size: 0.85rem;
        line-height: 1.7;
    }

    .why-left {
        padding: 5rem 5%;
    }

    .why-heading {
        margin-bottom: 4rem;
    }

    .why-heading h2 {
        font-size: clamp(2.8rem, 12vw, 4.2rem);
    }

    .about-features {
        display: block;
    }

    .about-features article {
        margin-bottom: 3rem;
    }

    .about-features article:last-child {
        margin-bottom: 0;
    }

    .about-features span {
        margin-bottom: 1.5rem;
    }

    .about-features p {
        max-width: 100%;
        font-size: 0.85rem;
    }

    html,
    body {
        width: 100%;
        max-width: 100%;
        overflow-x: hidden;
    }

    .about-hero,
    .our-story,
    .mission-vision,
    .why-left,
    footer {
        width: 100%;
        max-width: 100%;
    }

    .about-hero h1,
    .story-heading h2,
    .mission h2,
    .vision h2,
    .why-heading h2 {
        max-width: 100%;
        overflow-wrap: break-word;
    }

    footer {
        padding: 4rem 5% 2rem;
    }

    footer nav {
        gap: 1.25rem;
        margin-bottom: 3rem;
    }

    footer nav a {
        font-size: 0.65rem;
    }

    .copyright {
        font-size: 0.6rem;
    }

}

/* Code for about values */

.about-values {
    display: grid;
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
    align-items: start;
    gap: clamp(3rem, 7vw, 8rem);
    padding: 8rem 5%;
    background-color: #f2f2f2;
    color: #111111;
}

.values-heading {
    position: sticky;
    top: 3rem;
}

.values-heading h2 {
    margin-top: 1rem;
    font-size: clamp(3rem, 5.5vw, 6rem);
    line-height: 0.9;
    font-weight: 800;
    letter-spacing: -0.06em;
    text-transform: uppercase;
}

.values-list details {
    border-top: 1px solid #bdbdbd;
}

.values-list details:last-child {
    border-bottom: 1px solid #bdbdbd;
}

.values-list summary {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1.5rem;
    padding: 1.6rem 0;
    font-size: 0.9rem;
    font-weight: 800;
    letter-spacing: 0.08em;
    cursor: pointer;
    list-style: none;
}

.values-list summary::-webkit-details-marker {
    display: none;
}

.values-list summary::after {
    content: "+";
    font-size: 1.5rem;
    font-weight: 400;
}

.values-list details[open] summary::after {
    content: "−";
}

.values-list details p {
    max-width: 38rem;
    padding: 0 2rem 1.6rem 0;
    color: #444444;
    font-size: 0.9rem;
    line-height: 1.8;
}

/* Tablet design */

@media (max-width: 900px) {
    .about-values {
        gap: 3rem;
        padding: 6rem 5%;
    }

    .values-heading {
        position: static;
    }

    .values-heading h2 {
        font-size: clamp(2.8rem, 5vw, 4.5rem);
    }
}

/* Moble design */

@media (max-width: 600px) {
    .about-values {
        grid-template-columns: 1fr;
        gap: 2.5rem;
        padding: 5rem 5%;
    }

    .values-heading h2 {
        font-size: clamp(2.8rem, 12vw, 4.2rem);
    }

    .values-list summary {
        padding: 1.3rem 0;
        font-size: 0.8rem;
    }

    .values-list details p {
        padding-right: 0;
        font-size: 0.85rem;
    }
}