/* Main */

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    background: #f8f9fb;
    color: #1f2937;
}

a {
    color: inherit;
    text-decoration: none;
}

img {
    max-width: 100%;
    display: block;
}


                                                        /* Layout */

main {
    width: min(100% - 2rem, 1100px);

    display: flex;
    flex-direction: column;
    gap: 4rem;

    margin-inline: auto;
}

section {
    padding: 4rem 0;
}


                                                    /* Header */

header {
    background: #ffffff;
    border-bottom: 1px solid #e5e7eb;
}

nav {
    width: min(100% - 2rem, 1100px);
    min-height: 64px;

    display: flex;
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    gap: 0.75rem;

    padding: 1rem 0;

    margin-inline: auto;
}

nav > a {
    font-size: 1.25rem;
    font-weight: 700;
}

nav div a {
    font-size: 0.95rem;
}

nav div {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.75rem 1rem;
}


                                                            /* Hero */

.hero {
    max-width: 700px;

    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;

    padding: 5rem 0 4rem;
}

.hero h1 {
    margin: 0;

    font-size: clamp(2.5rem, 8vw, 4.5rem);
    line-height: 1.05;
    letter-spacing: -0.03em;
}

.hero p {
    max-width: 600px;

    margin: 0;
}

.hero p:first-child {
    font-weight: 700;
    font-size: 0.95rem;
}

.hero a {
    display: inline-block;

    padding: 0.85rem 1.25rem;

    border-radius: 10px;

    background: #1f2937;
    color: #ffffff;

    font-weight: 700;

    transition:
        transform 0.2s ease,
        opacity 0.2s ease;
}

.hero a:hover {
    transform: translateY(-2px);
    opacity: 0.9;
}

.hero a:focus-visible {
    outline: 3px solid #1f2937;
    outline-offset: 4px;
}


                                                        /* Progress Bar */

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

    background: #ffffff;

    padding: 2rem;

    border-radius: 16px;
    border: 1px solid #e5e7eb;
}

.progress h2,
.progress p {
    margin: 0;
}

.progress [role="progressbar"] {
    width: 100%;
    height: 12px;

    background: #e5e7eb;

    border-radius: 300px;

    overflow: hidden;
}

.progress [role="progressbar"] span {
    display: block;

    width: 0%;
    height: 100%;

    border-radius: inherit;

    background: #1f2937;
}


                                                    /* Learning Path */

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

.learningPath h2,
.learningPath > p {
    margin: 0;
}

.learningPath > p {
    color: #6b7280;
}

.learningPath ol {
    display: grid;
    gap: 1rem;

    padding: 0;

    list-style: none;
}

.learningPath li {
    background: #ffffff;

    border: 1px solid #e5e7eb;
    border-radius: 12px;

    padding: 1.25rem;

    transition:
        transform 0.2s ease,
        border-color 0.2s ease;
}

.learningPath li:hover {
    transform: translateY(-2px);
    border-color: #d1d5db;
}

.learningPath a {
    display: block;

    font-weight: 600;
}

.learningPath a:focus-visible {
    outline: 3px solid #1f2937;
    outline-offset: 4px;
}


                                                /* Projects */

.projects {
    display: grid;
    gap: 1rem;
}

.projects h2,
.projects p {
    grid-column: 1 / -1;

    margin: 0;
}

.projects a {
    display: block;

    padding: 1.25rem;

    background: #ffffff;

    border: 1px solid #e5e7eb;
    border-radius: 12px;

    font-weight: 600;

    transition:
        transform 0.2s ease,
        border-color 0.2s ease;
}

.projects a:hover {
    transform: translateY(-2px);
    border-color: #d1d5db;
}

.projects a:focus-visible {
    outline: 3px solid #1f2937;
    outline-offset: 4px;
}


                                                /* Footer */

footer {
    display: flex;
    flex-direction: column;
    /*justify-content: center;*/
    align-items: center;

    padding: 2rem 1rem;

    background: #ffffff;

    border-top: 1px solid #e5e7eb;
}

footer p {
    margin: 0;

    font-size: 0.9rem;
    color: #6b7280;
}


                                        /* Media Query */

@media (min-width: 768px) {

    main {
        width: min(100% - 4rem, 1100px);
    }

    nav {
        width: min(100% - 4rem, 1100px);

        flex-direction: row;
        align-items: center;
        justify-content: space-between;

        padding: 0;
    }

    .learningPath ol {
        grid-template-columns: repeat(2, 1fr);
    }

    .projects {
        grid-template-columns: repeat(2, 1fr);
    }

    .progress {
        padding: 2rem;
    }
}