:root {
    /* Colores */
    --color-bg: #f7f7f7;
    --color-text: #24292e;
    --color-primary: #24292e;
    --color-primary-hover: #33383d;
    --color-secondary: #333;
    --color-tertiary: #586069;
    --color-muted: #ccc;
    --color-white: #ffffff;
    --color-link: #0366d6;
    --color-link-hover: #0057bc;
    --color-error-bg: #ffeef0;
    --color-error-text: #b84751;
    --color-error-border: #f5c6cb;

    /* Bordes y sombras */
    --border-radius: 0.5rem;
    --box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);

    /* Tipografía */
    --font-base: 16px;
    --font-xs: 0.75rem;
    --font-sm: 0.875rem;
    --font-md: 1rem;
    --font-lg: 1.25rem;
    --font-xl: 1.5rem;
}


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

body {
    background-color: var(--color-bg);
    color: var(--color-text);
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
        Oxygen, Ubuntu, Cantarell, "Open Sans", "Helvetica Neue", sans-serif;
    font-size: var(--font-base);
}

header {
    background-color: var(--color-primary);
    color: var(--color-white);
    padding: 1rem;
    text-align: center;
}

main {
    margin: 1rem auto;
    padding: 1rem;
    text-align: center;
    max-width: 800px;
}

.container {
    margin: 1.5rem auto;
    border: 1px solid var(--color-muted);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    background-color: var(--color-white);
    box-shadow: var(--box-shadow);
}

.search {
    max-width: 500px;

    form {
        display: flex;
        gap: 0.5rem;
    }
}

.input-group {
    position: relative;
    flex: 1;

    i {
        position: absolute;
        left: 0.5rem;
        top: 50%;
        transform: translateY(-50%);
        color: var(--color-muted);
    }

    input[type="text"] {
        padding: 0.625rem;
        border: 1px solid var(--color-muted);
        border-radius: var(--border-radius);
        padding-left: 2rem;
        width: 100%;

        &:focus {
            outline: 2px solid var(--color-tertiary);
            outline-offset: 2px;
        }
    }
}

.button {
    background-color: var(--color-primary);
    color: var(--color-white);
    border: none;
    border-radius: var(--border-radius);
    padding: 0.625rem 1.25rem;
    font-size: var(--font-sm);
    cursor: pointer;

    &:hover {
        background-color: var(--color-primary-hover);
    }

    &:disabled {
        background-color: var(--color-muted);
        cursor: not-allowed;
    }
}

h3 {
    font-size: var(--font-xl);
    color: var(--color-primary);
}

i {
    margin-right: 0.125rem;
    color: var(--color-primary);
}

.user-info {
    display: flex;
    flex-direction: row;
    gap: 2rem;

    .user-avatar {
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 1rem;

        .avatar {
            max-width: 150px;
            max-height: 150px;
            border-radius: 50%;
            object-fit: cover;
        }

        .button {
            width: 100%;
            padding: 0.75rem 1rem;

            a {
                text-decoration: none;
                color: var(--color-white);
                display: flex;
                gap: 0.5rem;
                align-items: center;
                justify-content: center;
            }

            i {
                color: var(--color-white);
            }
        }
    }

    .user-details {
        display: flex;
        flex-direction: column;
        align-items: start;
        justify-content: center;
        text-align: start;
        gap: 1.5rem;
        color: var(--color-tertiary);

        .user-name {
            display: flex;
            flex-direction: column;
            align-items: start;
        }

        .user-stats {
            display: flex;
            flex-direction: row;
            gap: 1.5rem;

            .stat {
                display: flex;
                flex-direction: row;
                align-items: center;
                gap: 0.25rem;

                p {
                    font-weight: 600;
                    color: var(--color-primary);
                }
            }
        }
    }
}

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

.repos-header {
    display: flex;
    flex-direction: column;
    align-items: start;
    gap: 0.25rem;

    p {
        color: var(--color-tertiary);
        font-size: var(--font-sm);
    }
}

.repos-body {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 1rem;

    .repo {
        display: flex;
        flex-direction: column;
        align-items: start;
        text-align: start;
        gap: 0.875rem;
        border: 1px solid var(--color-muted);
        border-radius: var(--border-radius);
        padding: 1rem 1.5rem;
        background-color: var(--color-white);
        box-shadow: var(--box-shadow);

        h4 {
            font-size: var(--font-lg);
            font-weight: 600;

            a {
                text-decoration: none;
                color: var(--color-link);
                transition: all 0.2s ease-in;

                &:hover {
                    color: var(--color-link-hover);
                    text-decoration: underline;
                }
            }
        }

        p {
            display: -webkit-box;
            -webkit-box-orient: vertical;
            color: var(--color-tertiary);
            font-size: var(--font-sm);
            -webkit-line-clamp: 2;
            line-clamp: 2;
            overflow: hidden;
        }

        .repo-details {
            display: flex;
            align-items: center;
            gap: 1rem;

            .repo-language {
                font-size: var(--font-xs);
                color: var(--color-primary);
                font-weight: bold;
                background-color: var(--color-bg);
                padding: 0.25rem 0.5rem;
                border-radius: 1rem;
            }

            i {
                color: var(--color-tertiary);
            }
        }
    }
}

.no-repos {
    text-align: center;
    color: var(--color-tertiary);
    font-size: 1.5rem;
    font-weight: 600;
    margin: 2rem 0;
}

.error {
    background-color: var(--color-error-bg);
    color: var(--color-error-text);
    padding: 2rem 1rem;
    border: 1px solid var(--color-error-border);
    border-radius: 0.5rem;
    max-width: 500px;
    margin: 1rem auto;
}

@media screen and (max-width: 700px) {
    .user-info {
        .user-details {
            gap: 1rem;

            .user-stats {
                flex-direction: column;
                align-items: start;
                gap: 0.5rem;
            }
        }
    }
}