:root {
    --primary-dark: #173624;
    --primary-dark-mid: #1C4A2F;
    --primary-mid: #318153;
    --primary-light: #64B486;
    --primary-lightest: #B4E6C8;
    --accent: #73ff00;
    --accent-hover: #00d797;
    --color-white: #FFFFFF;

    --bg-main: #0e1918;
    --bg-secondary: #132826;
    --text-primary: #d0f0dd;
    --border-color: rgba(255, 255, 255, 0.1);

    --banner-bg: var(--primary-dark-mid);
    --banner-text: var(--primary-lightest);

    --font-main: 'Figtree', sans-serif;
    --container-width: 1100px;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-main);
    background-color: var(--bg-main);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Typography */
h1 {
    font-size: 3.4rem;
    font-weight: 600;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    max-width: 900px;
}

h2 {
    font-size: 2.5rem;
    font-weight: 550;
    margin-bottom: 2rem;
}


h3 {
    font-size: 1.8rem;
    font-weight: 550;
    line-height: 1.2;
    margin-bottom: 1rem;
}

h4 {
    font-size: 1.4rem;
    font-weight: 400;
    margin-bottom: 1rem;
}

p {
    font-size: 1.2rem;
    font-weight: 400;
    line-height: 1.5;
    letter-spacing: 0.01em;
    margin-bottom: 1rem;
}

a {
    text-decoration: none;
    color: inherit;
    transition: color 0.3s ease;
}

.subtitle {
    font-size: 1.5rem;
    color: var(--primary-light);
    font-weight: 400;
    margin-bottom: 3rem;
    max-width: 800px;
}

/*---< Buttons >---*/

.btn {
    display: inline-block;
    padding: 1rem 2rem;
    border-radius: 4px;
    font-weight: 500;
    font-size: 1.2rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-primary {
    background-color: var(--bg-main);
    color: var(--accent);
    border: 2px solid var(--accent);
}

.btn-primary:hover {
    background-color: var(--accent);
    color: var(--bg-main);
    transform: translateY(-2px);
}

.btn-large {
    padding: 1.25rem 3rem;
    font-size: 1.1rem;
}

/*---< Container >---*/

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 2rem;
}

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

.bg-secondary {
    background-color: var(--bg-secondary);
}

/* Animations */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.animate-on-scroll.is-visible {
    opacity: 1;
    transform: translateY(0);
}

/*** [BANNER] ***/

.dev-banner {
    background-color: var(--bg-secondary);
    color: #47ff9a;
    text-align: center;
    padding: 0.75rem 1rem;
    font-size: 1rem;
    font-weight: 450;
    letter-spacing: 0.03em;
}

.main-header {
    padding: 2.5rem 0;
}

.logo img {
    height: 100px;
    width: auto;
}


/*** [HERO] ***/

.hero {
    padding: 4rem 0 4rem;
    text-align: left;
}


/*** [ABOUT] ***/

.about {
    padding: 6rem 0;
    border-top: 1px solid var(--border-color);
}

.about-text {
    column-count: 2;
    column-gap: 4rem;
    max-width: 900px;
}

.about-text p {
    color: var(--primary-lightest);
    margin-bottom: 1.5rem;
    break-inside: avoid;
}

.about-text p strong {
    color: var(--color-white);
    font-weight: 600;
}


/*** [SERVICES] ***/

.services {
    padding: 8rem 0;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
}

.service-card {
    background-color: var(--primary-light);
    color: var(--bg-main);
    padding: 2.5rem;
    border-radius: 2px;
    border: 1px solid var(--border-color);
}

.service-card h4 {
    margin-bottom: 0.25rem;
}

.service-keywords {
    font-size: 1.2rem;
    font-weight: 400;
    background-color: rgba(180, 230, 200, 0.25);
    /* 25% opacity of --primary-lightest */
    padding: 0.25rem 0.75rem;
    border-radius: 4px;
    display: inline-block;
    margin-bottom: 1rem;
}


.service-card p {
    text-align: left;
}

/*** [CONTACT] ***/

.contact {
    padding: 4rem 0;
}

.contact-desc {
    font-size: 1.2rem;
    color: var(--primary-lightest);
    margin-bottom: 2rem;
}

.contact-details {
    display: flex;
    justify-content: left;
    gap: 3rem;
    margin-bottom: 3rem;
}

.contact-item {
    display: flex;
    font-size: 1.2rem;
    color: var(--primary-lightest);
    flex-direction: column;
    align-items: left;
}

.contact-item strong {
    color: var(--accent);
    font-weight: 400;
    margin-bottom: 0.5rem;
}


.contact-item a:hover {
    color: var(--text-secondary);
}

/*** [FOOTER] ***/
.main-footer {
    background-color: var(--primary-mid);
    padding: 1rem 1rem;
    border-top: 1px solid var(--border-color);
}

.main-footer p {
    color: var(--color-white);
    font-size: 0.9rem;

}

/*** [RESPONSIVE DESIGN] ***/

@media (max-width: 900px) {
    h1 {
        font-size: 3.2rem;
    }

    h2 {
        font-size: 2.3rem;
    }

    h3 {
        font-size: 1.7rem;
    }

    h4 {
        font-size: 1.4rem;
    }

    p {
        font-size: 1.1rem;
    }

    .subtitle {
        font-size: 1.2rem;
    }

    .contact-details {
        flex-direction: column;
        gap: 1.5rem;
    }


}

@media (max-width: 768px) {
    .about-text {
        column-count: 1;
    }
}

@media (max-width: 600px) {
    h1 {
        font-size: 2.8rem;
    }

    h2 {
        font-size: 2rem;
    }

    h3 {
        font-size: 1.55rem;
    }

    h4 {
        font-size: 1.3rem;
    }

    p {
        font-size: 1.1rem;
    }

    .service-keywords {
        font-size: 1.1rem;
    }

    .subtitle {
        font-size: 1.2rem;
    }

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