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

body {
    font-family: "Inter", sans-serif;
    background: #0d0d0d;
    color: white;
}

/* Title section */
.title-container {
    min-height: 100vh;
    background:
        radial-gradient(
            circle at top,
            #355d9d 0%,
            #234a86 35%,
            #16345d 60%,
            #0e1b2f 80%,
            #090909 99%
        );
}

/* Header sits above title, but shares its background */
header {
    height: 80px;
    width: 100%;
    display: flex;
    align-items: center;
    padding: 0 50px;
    background: transparent;
}

/* Logo is the RonanBerridge.uk in the top left of the header */
.logo {
    flex: 1;
    opacity: 1;
    transition: opacity 0.3s ease;
}

.logo a {
    color: white;
    text-decoration: none;
    font-size: 1.4rem;
    font-weight: 700;
    letter-spacing: -0.5px;
}

/* The nav (page options) dissapears on small devices as well as the logo */
nav {

    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 30px;
    opacity: 1;
    transition: opacity 0.3s ease;
}
@media (max-width: 900px) {

    .logo,
    nav {
        opacity: 0;
        pointer-events: none;
    }

}

/* Remove the underline from the nav links and make them white, with a hover effect */
nav a {
    color: #ffffff;
    text-decoration: none;
    font-size: 1rem;
    font-weight: 500;
}

nav a:hover {

    color: white;
    transform: translateY(-2px);

}

/* The actual title is the full height of the screen minus the header */
.title {
    height: calc(100vh - 80px);
    display: flex;
    justify-content: center;
    align-items: center;
    background: transparent;
}

.title-content {
    position: relative;
    text-align: center;
}

/* The image sits behind the text and has a transparent background */
.title-image {
    position: absolute;
    top: 20%;
    left: 50%;
    transform: translate(-50%, -50%);
    opacity: 0.7;
    width: min(900px, 80vw);
    height: auto;
    z-index: 0;
    pointer-events: none;
}

/* Set the text sizes */
.title h1 {
    font-size: clamp(3.5rem, 8vw, 6rem);
    font-weight: 800;
    letter-spacing: -2px;
    position: relative;
    z-index: 1;
    margin-bottom: 15px;
}

.title p {
    font-size: 1.4rem;
    font-weight: 540;
    position: relative;
    z-index: 1;

}

/* About section */
.about {
    width: 100%;
    padding: 120px 40px;
    background: #090909;
}

/* Define a split container, allowing two things side by side */
.split-container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: clamp(40px, 8vw, 100px);
    align-items: start;
}

.split h2 {
    font-size: 3.8rem;
    font-weight: 800;
    margin-bottom: 35px;
    letter-spacing: -2.5px;

}

.split h3 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 40px;
    letter-spacing: -1px;
}

.split h4 {
    font-size: 1.4rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.split p {
    font-size: 1.15rem;
    line-height: 1.9;
    margin-bottom: 25px;
    max-width: 600px;
}

/* Split items are similar but vertical splits */
.split-item {
    margin-bottom: 45px;
}

.split-item p {
    color: rgba(255,255,255,0.8);
    line-height: 1.7;
}

.split-item span {
    display: block;
    margin-top: 10px;
    margin-bottom: 12px;
    color: rgba(255,255,255,0.6);
    font-size: 0.9rem;
}

/* And make this responsive so on smaller devices is stacks vertically instead of splitting horizontally */
@media (max-width: 900px) {

    .about {
        padding: 80px 25px;
    }


    .split-container {

        grid-template-columns: 1fr;

        gap: 60px;

    }


    .split h2 {
        font-size: 3rem;
    }


    .split h3 {
        font-size: 2rem;
    }

}

/* Work section */
.work {
    width: 100%;
    padding: 120px 40px;
    background: #355d9d;
}

.work h2 {
    text-align: center;
    font-size: 3.8rem;
    font-weight: 800;
    letter-spacing: -2px;
    margin-bottom: 80px;

}

/* This section uses a carousel */
.carousel {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: 30px;
}

.carousel-button {
    width: 55px;
    height: 55px;
    border: none;
    border-radius: 50%;
    background: rgba(255,255,255,0.08);
    color: white;
    font-size: 1.3rem;
    cursor: pointer;
    transition:
        background 0.25s ease,
        transform 0.25s ease;
}

.carousel-button:hover {
    background: rgba(255,255,255,0.15);
    transform: scale(1.08);
}

/* A slide is a single item in the carousel */
/* This has text, an image and a gradient to make the text readable */
.slide {
    position: relative;
    flex: 1;
    height: 650px;
    overflow: hidden;
    border-radius: 24px;
    border: 1px solid rgba(255,255,255,0.08);
    background: #355d9d;
    opacity: 1;
    transition: opacity 0.25s ease;
}

/* When changing slide, this fade class is added to trigger the transition animation */
.slide.fade {
    opacity: 0;
}

.slide img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.slide-overlay {
    position: absolute;
    inset: 0;
    background:
        linear-gradient(
            to top,
            rgba(0,0,0,0.9) 0%,
            rgba(0,0,0,0.5) 30%,
            rgba(0,0,0,0.2) 60%
        );
}

.slide-content {
    position: absolute;
    left: 50px;
    bottom: 60px;
    max-width: 650px;
    z-index: 2;
}

.slide-content h3 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 20px;
}

.slide-content p {
    font-size: 1.15rem;
    line-height: 1.8;
    color: rgba(255,255,255,0.9);
}

.slide-tag {
    display: inline-block;
    margin-top: 30px;
    color: rgba(255,255,255,0.8);
    font-size: 0.9rem;
}

.slide-number {
    position: absolute;
    right: 35px;
    bottom: 30px;
    font-size: 1rem;
    font-weight: 600;
    color: rgba(255,255,255,0.8);
    z-index: 2;
}

/* Projects section */
.projects {
    width: 100%;
    padding: 120px 40px;
    background: #090909;
}

.projects h2 {
    text-align: center;
    font-size: 3.8rem;
    font-weight: 800;
    letter-spacing: -2px;
    margin-bottom: 80px;

}

/* Projects are placed in a grid */

.projects-grid {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
}


/* They have a set height, some are featured taking up multiple columns */
.project {
    display: flex;
    flex-direction: column;
    overflow: hidden;
    border-radius: 24px;
    background: #1f1f1f;
    cursor: pointer;
}

.project img {
    width: 100%;
    height: 220px;
    object-fit: cover;
    transition: transform 0.5s ease;
    flex-shrink: 0;
}

.project:hover img {
    transform: scale(1.1);
}

.project-content {
    padding: 30px;
}

/* h3 is for the title of the project */
.project-content h3 {
    font-size: 1.7rem;
    font-weight: 700;
    margin-bottom: 15px;
}

/* p is for the description */
.project-content p {
    font-size: 1rem;
    line-height: 1.7;
    color: rgba(255,255,255,0.8);
}

/* The span is used for the date */
.project-content span {
    display: block;
    margin-top: -8px;
    margin-bottom: 18px;
    font-size: 0.9rem;
    font-weight: 500;
    color: rgba(255,255,255,0.6);
}

/* A featured project takes up more space in the grid */
.project.featured {
    grid-column: span 2;
}

/* On mobile, stack the grid vertically and make the images smaller */
@media(max-width:900px) {
    .projects {
        padding:80px 20px;
    }
    .projects-grid {
        grid-template-columns:1fr;
    }
    .project.featured {
        grid-column:span 1;
    }
    .project img,
    .project.featured img {
        height:250px;
    }
}

/* Contacts section */
.contact {
    width: 100%;
    padding: 120px 40px;
    background: #355d9d;
}

.contact h2 {
    text-align: center;
    font-size: 3.8rem;
    font-weight: 800;
    letter-spacing: -2px;
    margin-bottom: 20px;

}

/* Contact links are `a`, remove text decoration and add hover effect to show its clickable */
.contact-links {
    margin-top: 40px;
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.contact-links a {
    width: fit-content;
    font-size: 1.2rem;
    font-weight: 500;
    color: rgba(255,255,255,0.7);
    text-decoration: none;
    transition:
        color 0.25s ease,
        transform 0.25s ease;
}

.contact-links a:hover {
    color: white;
    transform: translateX(8px);
}


/* CV card is a `a` to view CV */
.cv-card {
    display: flex;
    flex-direction: column;
    width: 80%;
    height: auto;
    padding: 35px;
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: 20px;
    text-decoration: none;
    background: #f4f1ea;
    color: #111111;
    transition:
        transform 0.3s ease,
        border-color 0.3s ease,
        background 0.3s ease;
}

.cv-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 30px 60px rgba(0,0,0,0.35);
}

/* Header sits underneath the title (Ronan Berridge) to indicate this is a CV */
.cv-header {
    letter-spacing: 3px;
    color: rgba(0,0,0,0.7);
    margin-bottom: 25px;
}

/* Title, description and info text */
.cv-card h3 {
    font-size: 2rem;
    margin-bottom: 15px;
    color: #111111;
}

.cv-card p {
    color: rgba(0,0,0,0.0.7);
    line-height: 1.6;
}

.cv-info {
    margin-top: auto;
    padding-top: 25px;
    font-size: 0.9rem;
    color: rgba(0,0,0,0.0.7);
}